CAN COMMUNICATION SYSTEM DIAGNOSIS SYSTEM

ECUS OR SENSORS WHICH COMMUNICATE THROUGH CAN COMMUNICATION SYSTEM
1. V Bus
  1. ECM
  2. Combination meter assembly
  3. Skid control ECU (brake actuator assembly)
  4. Power steering ECU assembly
  5. Steering sensor
  6. Airbag sensor assembly
  7. Main body ECU (multiplex network body ECU)
  8. Air conditioning amplifier assembly
  9. 4WD ECU assembly*1
  10. Network gateway ECU*2
  11. Certification ECU (smart key ECU assembly)*3
  12. Navigation receiver assembly*4
  13. Radio and display receiver assembly*5
  14. Clearance warning ECU assembly*6
  15. Headlight leveling ECU assembly*7
2. Sub Bus 1*8
  1. Main body ECU (multiplex network body ECU)
  2. Outer mirror control ECU assembly (for driver side)*9
  3. Outer mirror control ECU assembly (for front passenger side)*9
  4. Position control ECU and switch assembly*9
  5. Multiplex network door ECU
3. Sub Bus 2*2
  1. Network gateway ECU
  2. Driving support ECU assembly*10
  3. Blind spot monitor sensor LH*11
  4. Lane departure warning camera*12
  5. Television camera assembly*13
4. Sub Bus 13*10
  1. Driving support ECU assembly
  2. Millimeter wave radar sensor assembly
Tech Tips

*1: for AWD

*2: w/ Blind Spot Monitor System or Parking Assist Monitor System

*3: w/ Smart Entry and Start System

*4: for Navigation Receiver Type

*5: for Radio and Display Type

*6: w/ Toyota Parking Assist-sensor System

*7: w/ Automatic Headlight Beam Level Control System

*8: w/ Power Back Door System

*9: w/ Seat Position Memory System

*10: w/ Pre-crash Safety System

*11: w/ Blind Spot Monitor System

*12: w/ Lane Departure Alert System

*13: w/ Parking Assist Monitor System

CHECK FOR INSTALLED SYSTEMS (ECUS AND SENSORS) THAT ADOPT CAN COMMUNICATION

The systems (ECUs and sensors) that adopt CAN communication vary depending on the vehicle and optional equipment. Check which systems (ECUs and sensors) are installed on the vehicle.

Tech Tips

The names of ECUs and sensors shown on the GTS display may differ from those shown in the DTC Table by ECU section that follows.

ECU/Sensor Name	GTS Display	Applicability
ECM	ECM (Engine)	Installed on all vehicles
Combination meter assembly	Combination Meter	Installed on all vehicles
Power steering ECU assembly	Power Steering (EPS)	Installed on all vehicles
Main body ECU (multiplex network body ECU)	Main Body	Installed on all vehicles
Steering sensor	Spiral cable (Steering Angle Sensor)	Installed on all vehicles
Airbag sensor assembly	Airbag	Installed on all vehicles
Skid control ECU (brake actuator assembly)	Skid Control (ABS/VSC/TRAC)	Installed on all vehicles
Air conditioning amplifier assembly	Air Conditioning Amplifier	Installed on all vehicles
Certification ECU (smart key ECU assembly)	Certification (Smart)	Vehicles with smart entry and start system
Headlight leveling ECU assembly	Headlight swivel (AFS)	Vehicles with automatic headlight beam level control system
Network gateway ECU	CAN Gateway1	Vehicles with blind spot monitor system or parking assist monitor system
Navigation receiver assembly	Display and Navigation (AVN1)	Vehicles with navigation receiver type
Radio and display receiver assembly	Display and Navigation (AVN1)	Vehicles with radio and display type
Outer mirror control ECU assembly (for front passenger side)	Front Door RH/R-Mirror (FR-Door2/R-Miror) (for LHD) Front Door LH/L-Mirror (FL-Door2/L-Miror) (for RHD)	Vehicles with seat position memory system
Outer mirror control ECU assembly (for driver side)	Front Door LH/L-Mirror (FL-Door2/L-Miror) (for LHD) Front Door RH/R-Mirror (FR-Door2/R-Miror) (for RHD)	Vehicles with seat position memory system
Position control ECU and switch assembly	D-Seat	Vehicles with seat position memory system
Driving support ECU assembly	Driving Support (Cruise Control-ACC)	Vehicles with pre-crash safety system
4WD ECU assembly	Four Wheel Drive Control	Vehicles with AWD
Clearance warning ECU assembly	Clearance Warning (Clearance Sonar1)	Vehicles with Toyota parking assist-sensor system
Lane departure warning camera	Front Camera Module	Vehicles with lane departure alert system
Blind spot monitor sensor LH	Blind Spot Monitor Master	Vehicles with blind spot monitor system
Multiplex network door ECU	Back Door	Vehicles with power back door system
Television camera assembly	Parking Assist Monitor System3	Vehicles with parking assist monitor system
Millimeter wave radar sensor assembly	-	Vehicles with pre-crash safety system

CAN BUS CHECK

Tech Tips

The ECUs and sensors that are properly connected to the CAN communication system can be displayed using the GTS.

Using the GTS, select the CAN Bus Check screen.

Note

It may be possible to select buses that do not have ECUs or sensors from the bus selection pull-down menu. This is not a malfunction. (This occurs when optional devices are not on a sub bus that is monitored by a gateway function equipped ECU.)
In the bus selection pull down menu, all buses applicable to the model are displayed (e.g. LIN communication buses are also displayed). Therefore, refer to the wiring diagrams to check the names of sub buses for CAN communication.

Click here

Tech Tips

Different connection statuses are indicated by the background color of ECUs and sensors that are displayed.

Explanation of CAN Bus Check Screen
Bus Type	Background Color	Connection Status
V Bus	White	Communication has been normal since the start of the CAN bus check.
	Yellow	Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
	Red	Communication was established at least once since the start of the CAN bus check, but communication is currently not occurring (unstable communication).
	Not displayed	Communication stop has continued since the start of the CAN bus check.*1
Sub Bus (gateway function equipped ECU that does not have history of connected ECUs)*2	White	Communication has been normal since the start of the CAN bus check.
	Yellow	Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
	Red	Communication was established at least once since the start of the CAN bus check, but communication is currently not occurring (unstable communication).
	Not displayed	Communication stop has continued since the start of the CAN bus check.*1
Sub Bus (gateway function equipped ECU that has history of connected ECUs)*3	White	Communication has been normal since the start of the CAN bus check.
	Yellow	Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
	Red	Currently not communicating (either of the following): Communication stop has continued since the start of the CAN bus check. Communication was established at least once since the start of the CAN bus check, but communication is currently not occurring.
	Not displayed	Either of the following: If a gateway function equipped ECU cannot communicate, the sub bus and ECUs connected to the sub bus will not be displayed. If no ECUs are connected to the sub bus, "There is no system found on the Communication Bus" will be displayed.

Tech Tips

Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
*1: ECUs that are present in the vehicle but are not displayed on the CAN Bus Check screen.
*2: Gateway function equipped ECU that does not memorize the sub bus ECUs that are connected to it.
*3: Gateway function equipped ECU that memorizes the sub bus ECUs that are connected to it.
If none of the connected ECUs are displayed, or there is no response from the vehicle to the GTS, check the DLC3 branch and the V bus main bus lines for a malfunction.

Observe the connection response screen for approximately 2 minutes to check for a change in connection status of the connected ECUs and sensors.
Tech Tips
- If an open occurs in one of the lines of a CAN branch (except DLC3), output from the other branch line (the line that is not open) will be unstable and it may interfere with the response (display) of other ECUs and sensors.
- If the connection status changes during the inspection, repair the open in the branch line of the ECU or sensor that does not respond (is not detected) and then perform the CAN bus check again.

HOW TO INTERPRET CAN BUS CHECK SCREEN

When a communication stop is currently occurring, the probable malfunctioning part can be determined from the CAN bus check and by using the following methods.

Note

The following CAN bus wiring diagram is provided only as an example. This wiring diagram is different from the actual wiring diagram for this vehicle.
Tech Tips
- When a communication stop is currently occurring, it is easier to determine the probable malfunctioning part from the CAN bus check rather than from communication DTCs.
- Wait for approximately 2 minutes after turning the ignition switch on (IG) (or simulate the driving conditions that enable the malfunction to be reproduced) and select "CAN Bus Check". Then observe the communication status of each ECU on the screen.

If a communication error of only 1 ECU or sensor is indicated on the CAN Bus Check screen, a communication stop of the ECU or sensor is suspected.

Example: Open in both CAN branch lines of ECU B on the V bus

*a	V Bus	*b	Sub Bus
*c	Terminating Resistor	*d	Location of Malfunction
*e	Not displayed or background color changes to red or yellow	*f	CAN Bus Check Screen

Tech Tips

When there are communication stops, ECUs are present in the vehicle even though they are not displayed on the CAN Bus Check screen.

*a	Background color periodically changes to yellow or red
*b	Not displayed or background color is yellow or red
*c	Not displayed

If communication errors for multiple ECUs or sensors are indicated on the CAN Bus Check screen, then a communication stop of the ECU or sensor that shows a more serious communication stop (an ECU or a sensor which is not displayed) is suspected.

Example: Open in a CAN branch line for ECU D on the V bus

Explanation of CAN Bus Check Screen
Bus Type	Background Color	Connection Status
V Bus	White	Communication has been normal since the start of the CAN bus check.
	Yellow	Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
	Red	Communication was established at least once since the start of the CAN bus check, but communication is currently not occurring (unstable communication).
	Not displayed	Communication stop has continued since the start of the CAN bus check.*1
Sub Bus (gateway function equipped ECU that does not have history of connected ECUs)*2	White	Communication has been normal since the start of the CAN bus check.
	Yellow	Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
	Red	Communication was established at least once since the start of the CAN bus check, but communication is currently not occurring (unstable communication).
	Not displayed	Communication stop has continued since the start of the CAN bus check.*1
Sub Bus (gateway function equipped ECU that has history of connected ECUs)*3	White	Communication has been normal since the start of the CAN bus check.
	Yellow	Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
	Red	Currently not communicating (either of the following): Communication stop has continued since the start of the CAN bus check. Communication was established at least once since the start of the CAN bus check, but communication is currently not occurring.
	Not displayed	Either of the following: If a gateway function equipped ECU cannot communicate, sub bus and ECUs connected to the sub bus will not be displayed. If no ECUs are connected to the sub bus, "There is no system found on the Communication Bus" will be displayed.

Tech Tips

Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
*1: ECUs that are present in the vehicle but are not displayed on the CAN Bus Check screen.
*2: Gateway function equipped ECU that does not memorize the sub bus ECUs that are connected to it.
*3: Gateway function equipped ECU that memorizes the sub bus ECUs that are connected to it.
The example of the CAN Bus Check screen in the illustration shows the result of electrical noise on the CAN bus which is caused by an open in a CAN branch line of ECU D (output from the other branch line is unstable) and the communication of ECU C is also unstable. In addition, in this example, ECU C is equipped with a gateway function. Therefore, communication is also unstable between the sub bus ECUs of ECU C and the V bus.
The example in the illustration shows that ECU D is not displayed on the CAN Bus Check screen. This indicates a more significant communication stop. In this case, a communication stop of ECU D is suspected.

*a Not displayed or background color changes to red

If a communication error is indicated on both the V bus and sub bus on the CAN Bus Check screen, suspect any communication stop displayed for the V bus first.

Example: Open in both CAN branch lines of ECU C on the V bus
Tech Tips
- In the CAN bus check, it is possible to confirm the communication status of ECUs connected to the V bus after connecting the GTS to the DLC3. As for sub buses, it is possible to confirm which sub bus connected ECUs can communicate with a gateway function equipped ECU on the V bus.
- If a gateway function equipped ECU has a communication error, ECUs connected to the gateway function equipped ECU are also affected, and communication stops will be indicated.
- The CAN Bus Check screen in the illustration shows that ECU C has a gateway function and a communication stop in ECU C is suspected.
*a Background color changes to red

If the CAN Bus Check screen indicates a communication stop only in the sub bus, a communication stop in the sub bus is suspected.

Example: Open in both CAN branch lines of ECU G on the sub bus
Tech Tips
- A communication error in a sub bus does not affect the V bus or other buses.
- When a gateway function equipped ECU has memorized the ECUs that are connected to the sub bus, if any of the ECUs connected to the gateway function equipped ECU has a communication error, the background color changes to yellow or red. (The displayed name will not disappear.)

If both of the V bus main bus lines are open, ECUs or sensors that are located farther away from the DLC3 than the open part will be displayed as a communication stop on the CAN Bus Check screen.

(In this case, ECU A and B are not displayed or their background color changes to red.)

*a	V Bus	*b	Sub Bus
*c	Terminating Resistor	*d	Location of Malfunction
*e	Not displayed or background color is red	*f	CAN Bus Check Screen

Tech Tips

If a communication error occurs in an ECU, it is not displayed on the CAN Bus Check screen even though the ECU is present.

If both of the sub bus main bus lines are open, ECUs that are located farther away from the gateway function equipped ECU than the open part will be displayed as a communication stop on the CAN Bus Check screen.

(In this case, ECU I and J are not displayed or their background color changes to red.)

*a	V Bus	*b	Sub Bus
*c	Terminating Resistor	*d	Location of Malfunction
*e	Not displayed or background color is red	*f	CAN Bus Check Screen
*g	Gateway Function Equipped ECU	-	-

*a	When any of the following malfunctions occur on the V bus
*b	When any of the following malfunctions occur on a sub bus
*c	Not displayed

When any of the following malfunctions occur, CAN communication cannot be established and almost all ECUs and sensors on the bus show a communication error on the CAN Bus Check screen.

Details of Malfunction
Short between CAN lines (CANH and CANL)
Short between a CAN line (CANH or CANL) and +B
Short between a CAN line (CANH or CANL) and ground
Open in a CAN main bus line

Tech Tips

When a malfunction occurs on the V bus, almost all ECUs and sensors on the V bus and sub bus indicate a communication error (almost all ECUs are not displayed). As communication with the gateway function equipped ECU that is connected to the V bus stops, communication from the ECUs connected to the sub bus that is monitored by the gateway function equipped ECU also stops (these ECUs are not displayed).
When a malfunction occurs in a sub bus, almost all ECUs connected to the sub bus indicate a communication error.
A communication error in a sub bus does not affect the V bus or other buses.
The malfunctioning part can be determined by checking for a short circuit between CAN bus lines or between a CAN bus line and ground or +B short using an electrical tester.

HOW TO INTERPRET COMMUNICATION DTCS (DTCS THAT START WITH U)

If a CAN communication error cannot be reproduced, determine the suspected malfunctioning part using the DTCs stored in ECUs that are connected to the CAN buses by following the procedure below.

Tech Tips

Communication DTCs (DTCs that start with U) indicate a communication error between the ECU that stores the DTC and the ECU that is indicated by the DTC.
1. If multiple ECUs store a communication DTC for a particular ECU, a communication stop of the ECU is suspected.
  
  *a Items to be Checked - -
  Note
  
  This DTC table is from another model, and is only used here to show an example of DTCs that are output when there is an open in a CAN branch line for the main body ECU. This table does not show DTCs applicable to this vehicle.
  
  Even though a DTC title may indicate a communication error with a specific ECU, the ECU name used in the DTC name on the GTS may differ depending on the ECU that stores the DTC. (Regarding output DTCs, refer to step 6 and the DTC chart for each ECU.)
  Tech Tips
  
  As multiple ECUs indicate a communication stop with the main body ECU, the possibility of a communication stop of the main body ECU is high.
2. If almost all of the communication DTCs of an ECU are stored, a communication stop of the ECU is suspected.
  
  *a Items to be Checked - -
  
  Note
  
  This DTC table is from another model, and is only used here to show an example of DTCs that are output when there is an open in a CAN branch line for the main body ECU. This table does not show DTCs applicable to this vehicle.
  
  Tech Tips
  
  If almost all of the DTCs of the main body ECU are stored, the possibility of a communication stop of the main body ECU is high.
3. When a CAN communication error occurs, many DTCs are output. DTCs other than communication error DTCs (such as DTCs that start with C or B) and communication DTCs for the ABS system are important DTCs, however it may be easier to determine the malfunctioning part by examining the overall situation without considering these DTCs.

To help determine the part of the sub bus that has a communication error, prioritize the communication stop DTCs stored in the gateway function equipped ECU.

*a	Items to be Checked	*b	ECM
*c	Gateway Function Equipped ECU	*d	Location of Malfunction
*e	V Bus	*f	Sub Bus

Note

This DTC table is from another model, and is only used here to show the ECUs connected to both a V bus and a sub bus. It shows DTCs output when there is an open in the main bus lines for the ECM on the sub bus. This table does not show DTCs applicable to this vehicle.

Tech Tips

As gateway function equipped ECUs (sub bus monitor ECU) monitor signals from all ECUs that are connected to sub buses, gateway function equipped ECUs can detect ECUs with a communication stop more accurately.
When there is a communication stop for the gateway function equipped ECU (gateway), communication with ECUs connected to other buses such as the V bus stops. Therefore, communication DTCs for ECUs connected to other buses are also stored.

When any of the following malfunctions occurs, many DTCs are likely to be output from many ECUs. Because of this, it may be difficult to determine the probable malfunctioning part.
- Short between CAN lines (CANH and CANL)
- Short between a CAN line (CANH or CANL) and ground
- Short between a CAN line (CANH or CANL) and +B
- Open in a CAN branch line (CANH or CANL) of an ECU or sensor
- Open in a CAN main bus line (CANH or CANL) between 2 ECUs that have a terminating resistor

DTC TABLE BY ECU

Tech Tips

In the CAN communication system, the CAN communication DTCs of each ECU can be displayed using the GTS.
If CAN communication system DTCs are output, the malfunction cannot be determined only by the DTCs. Perform troubleshooting according to How to Proceed with Troubleshooting.

Click here
If the system function temporarily returns to normal, DTCs may not be output again even though the following DTC check procedures are used.

ECM (for 1AR-FE) / GTS Display "Engine and ECT"

Powertrain > Engine > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*1: Refer to (U760E) Automatic Transaxle System.

Click here
*2: Refer to SFI System.

Click here

ECM (for 1AR-FE) / GTS Display "Engine"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100*1	Lost Communication with ECM / PCM "A"	The TCM does not receive data from the ECM for 1.25 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 1.25 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.
U0101*2	Lost Communication with TCM	The ECM does not receive data from the TCM for 1.25 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 1.25 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.

ECM (for 2GR-FE) / GTS Display "Engine"

Powertrain > Engine > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*: Refer to SFI System.

Click here

ECM (for 2GR-FE) / GTS Display "Engine"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0101*	Lost Communication with TCM	The ECM does not receive data from the TCM for 1.25 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 1.25 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.

TCM (for 2GR-FE) / GTS Display "ECT"

Powertrain > ECT > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*: Refer to (U660E or U660F) Automatic Transaxle System.

for U660E

Click here
for U660F

Click here

TCM (for 2GR-FE) / GTS Display "ECT"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100*	Lost Communication with ECM / PCM "A"	The TCM does not receive data from the ECM for 1.25 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 1.25 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.

Skid Control ECU (Brake Actuator Assembly) / GTS Display "ABS/VSC/TRC"

Chassis > ABS/VSC/TRC > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Skid Control ECU (Brake Actuator Assembly) / GTS Display "ABS/VSC/TRC"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0073	Control Module Communication Bus OFF	One of the following conditions is met: Delayed reception of data from the steering sensor and airbag sensor assembly continues for 1 second or more. The following condition occurs 10 times or more within 60 seconds: Delayed reception of data from the steering sensor and airbag sensor assembly occurs once or more within 5 seconds. The following condition occurs 10 times in succession: The skid control ECU (brake actuator assembly) cannot send/receive data (bus off) once or more within 0.1 seconds.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the skid control ECU (brake actuator assembly) (IG1 terminal voltage) is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least 60 seconds.	ABS warning light illuminates. Slip indicator light illuminates. Brake warning light illuminates.	DTC is stored until it is cleared using the GTS.
U0100	Lost Communication with ECM / PCM	The skid control ECU (brake actuator assembly) does not receive data from the ECM for 2 seconds or more.	All conditions are met: The ignition switch is ON for 1 second or more. Vehicle speed is 15 km/h (9 mph) or more. The power source voltage of the skid control ECU (brake actuator assembly) (IG1 terminal voltage) is between 10 and 17.4 V.	Turn the ignition switch to ON and drive the vehicle at a speed of 15 km/h (9 mph) or more for 3 seconds or more.	Slip indicator light illuminates.	DTC is stored until it is cleared using the GTS.
U0124	Lost Communication with Lateral Acceleration Sensor Module	Either of the following conditions is met: The skid control ECU (brake actuator assembly) does not receive data from the airbag sensor assembly for 1 second or more. The following condition occurs 10 times or more within 60 seconds: The skid control ECU (brake actuator assembly) does not receive data from the airbag sensor assembly once or more within 5 seconds.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the skid control ECU (brake actuator assembly) (IG1 terminal voltage) is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least 60 seconds.	ABS warning light illuminates. Slip indicator light illuminates.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Either of the following conditions is met: The skid control ECU (brake actuator assembly) does not receive data from the steering sensor for 1 second or more. The following condition occurs 10 times or more within 60 seconds: The skid control ECU (brake actuator assembly) does not receive data from the steering sensor once or more within 5 seconds.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the skid control ECU (brake actuator assembly) (IG1 terminal voltage) is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least 60 seconds.	Slip indicator light illuminates.	DTC is stored until it is cleared using the GTS.

Power Steering ECU Assembly / GTS Display "EMPS"

Chassis > EMPS > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Power Steering ECU Assembly / GTS Display "EMPS"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM / PCM "A"	The power steering ECU assembly does not receive data from the ECM for 5 seconds or more.	All conditions are met: The ignition switch is ON for 1 seconds or more. Vehicle speed is 20 km/h (12 mph) or more. The power source voltage of the power steering ECU assembly is 9 V or more.	Drive the vehicle at a speed of 20 km/h (12 mph) or more for 6 seconds or more.	EPS warning light illuminates.	DTC remains stored only while malfunction is occurring.
U0129	Lost Communication with Brake System Control Module	The power steering ECU assembly cannot receive data from the skid control ECU (brake actuator assembly) for 2.34 seconds or more.	Both conditions are met: The ignition switch is ON for 2 seconds or more. The power source voltage of the power steering ECU assembly is 9 V or more.	Turn the ignition switch to ON and wait at least 4.34 seconds.	EPS warning light illuminates.	DTC remains stored only while malfunction is occurring.

Network Gateway ECU / GTS Display "Gateway"

Body Electrical > Gateway > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
"Gateway" stores DTCs when a communication error is detected in sub bus 2.

Network Gateway ECU / GTS Display "Gateway"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0104	Lost Communication with Cruise Control Module	The network gateway ECU does not receive data from the driving support ECU assembly for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 11 seconds or more. The power source voltage of the network gateway ECU is between 9.5 and 10.5 V.	Turn the ignition switch to ON and wait at least 21 seconds.	-	DTC is stored until it is cleared using the GTS.
U0233	Lost Communication with Blind Spot Monitor Master Module	The network gateway ECU does not receive data from the blind spot monitor sensor LH for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 11 seconds or more. The power source voltage of the network gateway ECU is between 9.5 and 10.5 V.	Turn the ignition switch to ON and wait at least 21 seconds.	-	DTC is stored until it is cleared using the GTS.
U023A	Lost Communication with Front Camera Module	The network gateway ECU does not receive data from the lane departure warning camera for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 11 seconds or more. The power source voltage of the network gateway ECU is between 9.5 and 10.5 V.	Turn the ignition switch to ON and wait at least 21 seconds.	-	DTC is stored until it is cleared using the GTS.
U0265	Lost Communication with Parking Assist Monitor Module	The network gateway ECU does not receive data from the television camera assembly for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 11 seconds or more. The power source voltage of the network gateway ECU is between 9.5 and 10.5 V.	Turn the ignition switch to ON and wait at least 21 seconds.	-	DTC is stored until it is cleared using the GTS.
U1002	Lost Communication with Gateway Module (Network Gateway ECU)	The network gateway ECU detects communication errors between itself and the driving support ECU assembly, blind spot monitor sensor LH, lane departure warning camera and television camera assembly.	Both conditions are met: The ignition switch is ON for 11 seconds or more. The power source voltage of the network gateway ECU is between 9.5 and 10.5 V.	Turn the ignition switch to ON and wait at least 21 seconds.	-	DTC is stored until it is cleared using the GTS.

Main Body ECU (Multiplex Network Body ECU) / GTS Display "Main Body"

Body Electrical > Main Body > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*1: for LHD
*2: for RHD

Main Body ECU (Multiplex Network Body ECU) / GTS Display "Main Body"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM / PCM "A"	The main body ECU (multiplex network body ECU) does not receive data from the ECM for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0101	Lost Communication with TCM	The main body ECU (multiplex network body ECU) does not receive data from the TCM for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0120	Lost Communication with Starter / Generator Control Module	The main body ECU (multiplex network body ECU) does not receive data from the certification ECU (smart key ECU assembly) for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0151	Lost Communication with Restraints Control Module	The main body ECU (multiplex network body ECU) does not receive data from the airbag sensor assembly for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	The main body ECU (multiplex network body ECU) does not receive data from the combination meter assembly for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0199	Lost Communication with ''Door Control Module A''	The main body ECU (multiplex network body ECU) does not receive data from the outer mirror control ECU assembly (for front passenger side) for 10 seconds or more. 1 The main body ECU (multiplex network body ECU) does not receive data from the outer mirror control ECU assembly (for driver side) for 10 seconds or more.2	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0200	Lost Communication with ''Door Control Module B''	The main body ECU (multiplex network body ECU) does not receive data from the outer mirror control ECU assembly (for driver side) for 10 seconds or more.1 The main body ECU (multiplex network body ECU) does not receive data from the outer mirror control ECU assembly (for front passenger side) for 10 seconds or more. 2	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0208	Lost Communication with ''Seat Control Module A''	The main body ECU (multiplex network body ECU) does not receive data from the position control ECU and switch assembly for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0230	Lost Communication with Rear Gate Module	The main body ECU (multiplex network body ECU) does not receive data from the multiplex network door ECU for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U023A	Lost Communication with Image Processing Module "A"	The main body ECU (multiplex network body ECU) does not receive data from the lane departure warning camera for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0327	Software Incompatibility with Vehicle Security Control Module	The main body ECU (multiplex network body ECU) does not receive data from the certification ECU (smart key ECU assembly) for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U1002	Lost Communication with Gateway Module (Main body)	The main body ECU (multiplex network body ECU) detects communication errors between itself and the position control ECU and switch assembly, outer mirror control ECU assembly (for front passenger side), outer mirror control ECU assembly (for driver side) and multiplex network door ECU.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U1126	Lost Communication with Parking Assist Monitor Module	The main body ECU (multiplex network body ECU) does not receive data from the television camera assembly for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.

Certification ECU (Smart Key ECU Assembly) / GTS Display "Entry&Start"

Body Electrical > Entry&Start > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Certification ECU (Smart Key ECU Assembly) / GTS Display "Entry&Start"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM / PCM	The certification ECU (smart key ECU assembly) does not receive data from the ECM for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Main Body ECU	The certification ECU (smart key ECU assembly) does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Combination Meter	The certification ECU (smart key ECU assembly) does not receive data from the combination meter assembly for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.

Certification ECU (Smart Key ECU Assembly) / GTS Display "Power Source Control"

Body Electrical > Power Source Control > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Certification ECU (Smart Key ECU Assembly) / GTS Display "Power Source Control"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM / PCM	The certification ECU (smart key ECU assembly) does not receive data from the ECM for 3.1 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or more.	Turn the ignition switch to ON and wait at least 4.1 seconds.	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Main Body ECU	The certification ECU (smart key ECU assembly) does not receive data from the main body ECU (multiplex network body ECU) for 3 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or more.	Turn the ignition switch to ON and wait at least 3 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Combination Meter	The certification ECU (smart key ECU assembly) does not receive data from the combination meter assembly for 3.1 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or more.	Turn the ignition switch to ON and wait at least 3.1 seconds.	-	DTC is stored until it is cleared using the GTS.

Certification ECU (Smart Key ECU Assembly) / GTS Display "Starting Control"

Body Electrical > Starting Control > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Certification ECU (Smart Key ECU Assembly) / GTS Display "Starting Control"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM / PCM	The certification ECU (smart key ECU assembly) does not receive data from the ECM for 2 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the certification ECU (smart key ECU assembly) is 10.5 V or more.	Turn the ignition switch to ON and wait at least 2 seconds.	-	DTC remains stored only while malfunction is occurring.

Headlight Leveling ECU Assembly / GTS Display "HL AutoLeveling"

Body Electrical > HL AutoLeveling > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*: The headlight leveling ECU assembly stores this DTC if an internal error related to the CAN communication system is detected.

Click here

This ECU uses the CAN communication system for DTC communication.

Headlight Leveling ECU Assembly / GTS Display "HL AutoLeveling"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM / PCM "A"	The headlight leveling ECU assembly does not receive data from the ECM for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the headlight leveling ECU assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 13 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	The headlight leveling ECU assembly does not receive data from the skid control ECU (brake actuator assembly) for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the headlight leveling ECU assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 13 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	The headlight leveling ECU assembly does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the headlight leveling ECU assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 13 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1000*	CAN Communication Failure (Message Registry)	When the ignition switch is turned on (IG), a CAN communication malfunction is detected.	The ignition switch is ON.	Turn the ignition switch to ON.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.

Television Camera Assembly / GTS Display "IPA/Parking Assist Monitor"

Chassis > IPA/Parking Assist Monitor > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*1: The television camera assembly stores this DTC if an internal error related to the CAN communication system is detected.

Click here
*2: for Navigation Receiver Type
*3: for Radio and Display Type

Television Camera Assembly / GTS Display "IPA/Parking Assist Monitor"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM / PCM "A"	The television camera assembly does not receive data from the ECM for 11 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the television camera assembly is 5.5 V or more.	Turn the ignition switch to ON and wait at least 14 seconds.	-	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	The television camera assembly does not receive data from the steering sensor for 11 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the television camera assembly is 5.5 V or more.	Turn the ignition switch to ON and wait at least 14 seconds.	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	The television camera assembly does not receive data from the skid control ECU (brake actuator assembly) for 11 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the television camera assembly is 5.5 V or more.	Turn the ignition switch to ON and wait at least 14 seconds.	-	DTC is stored until it is cleared using the GTS.
U0131	Lost Communication with Power Steering Control Module	The television camera assembly does not receive data from the power steering ECU assembly for 11 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the television camera assembly is 5.5 V or more.	Turn the ignition switch to ON and wait at least 14 seconds.	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	The television camera assembly does not receive data from the main body ECU (multiplex network body ECU) for 11 seconds or more.	Both conditions are met: The ignition switch is ACC for 3 seconds or more. The power source voltage of the television camera assembly is 5.5 V or more.	Turn the ignition switch to ON and wait at least 14 seconds.	-	DTC is stored until it is cleared using the GTS.
U0163	Lost Communication with Navigation Control Module	The television camera assembly does not receive data from the navigation receiver assembly for 11 seconds or more.2 The television camera assembly does not receive data from the radio and display receiver assembly for 11 seconds or more.3	Both conditions are met: The ignition switch is ACC for 3 seconds or more. The power source voltage of the television camera assembly is 5.5 V or more.	Turn the ignition switch to ON and wait at least 14 seconds.	-	DTC is stored until it is cleared using the GTS.
U1000*1	CAN Communication Failure (Message Registry)	When the ignition switch is turned on (IG), a CAN communication malfunction is detected.	The ignition switch is ON.	Turn the ignition switch to ON.	-	DTC remains stored only while malfunction is occurring.
U1110	Lost Communication with Clearance Sonar Module	The television camera assembly does not receive data from the clearance warning ECU assembly for 11 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the television camera assembly is 5.5 V or more.	Turn the ignition switch to ON and wait at least 14 seconds.	-	DTC is stored until it is cleared using the GTS.

Air Conditioning Amplifier Assembly / GTS Display "Air Conditioner"

Body Electrical > Air Conditioner > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Air Conditioning Amplifier Assembly / GTS Display "Air Conditioner"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM	The air conditioning amplifier assembly does not receive data from the ECM for 5 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the GTS.
U0131	Lost Communication with Electric Power Steering ECU	The air conditioning amplifier assembly does not receive data from the power steering ECU assembly for 5 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Main Body ECU	The air conditioning amplifier assembly does not receive data from the main body ECU (multiplex network body ECU) for 5 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Combination Meter	The air conditioning amplifier assembly does not receive data from the combination meter assembly for 5 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the GTS.

Navigation Receiver Assembly / GTS Display "Navigation System"

Body Electrical > Navigation System > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*1: w/ Toyota Parking Assist-sensor System
*2: w/o Toyota Parking Assist-sensor System

Navigation Receiver Assembly / GTS Display "Navigation System"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0073	Sending Malfunction (Navigation to APGS)	The navigation receiver assembly does not send/receive data for 5 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the navigation receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 6 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0100	Engine ECU Communication	Either of the following conditions is met: The navigation receiver assembly does not receive data from the ECM for 12 seconds or more.1 The navigation receiver assembly does not receive data from the ECM for 4 seconds or more.2	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the navigation receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 13 seconds.1 Turn the ignition switch to ON and wait at least 5 seconds.2	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	The navigation receiver assembly does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the navigation receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Meter ECU Communication	The navigation receiver assembly does not receive data from the combination meter assembly for 30 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the navigation receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 31 seconds.	-	DTC is stored until it is cleared using the GTS.

Radio and Display Receiver Assembly / GTS Display "Navigation System"

Body Electrical > Navigation System > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*1: w/ Toyota Parking Assist-sensor System
*2: w/o Toyota Parking Assist-sensor System

Radio and Display Receiver Assembly / GTS Display "Navigation System"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0073	Sending Malfunction (Navigation to APGS)	The radio and display receiver assembly does not send/receive data for 5 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 6 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0100	Engine ECU Communication	Either of the following conditions is met: The radio and display receiver assembly does not receive data from the ECM for 12 seconds or more.1 The radio and display receiver assembly does not receive data from the ECM for 4 seconds or more.2	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 13 seconds.1 Turn the ignition switch to ON and wait at least 5 seconds.2	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	The radio and display receiver assembly does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Meter ECU Communication	The radio and display receiver assembly does not receive data from the combination meter assembly for 30 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 31 seconds.	-	DTC is stored until it is cleared using the GTS.

Combination Meter Assembly / GTS Display "Combination Meter"

Body Electrical > Combination Meter > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*1: for Navigation Receiver Type
*2: for Radio and Display Type

Combination Meter Assembly / GTS Display "Combination Meter"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM / PCM "A"	The combination meter assembly does not receive data from the ECM for 3 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the combination meter assembly is 11.5 V or more.	Turn the ignition switch to ON and wait at least 4 seconds.	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	The combination meter assembly does not receive data from the skid control ECU (brake actuator assembly) for 3 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the combination meter assembly is 11.5 V or more.	Turn the ignition switch to ON and wait at least 4 seconds.	-	DTC is stored until it is cleared using the GTS.
U0131	Lost Communication with Power Steering Control Module	The combination meter assembly does not receive data from the power steering ECU assembly for 3 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the combination meter assembly is 11.5 V or more.	Turn the ignition switch to ON and wait at least 4 seconds.	EPS warning light illuminates.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	The combination meter assembly does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the combination meter assembly is 11.5 V or more.	Turn the ignition switch to ON and wait at least 11 seconds.	Tire pressure warning light illuminates.	DTC is stored until it is cleared using the GTS.
U0151	Lost Communication with Restraints Control Module	The combination meter assembly does not receive data from the airbag sensor assembly for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the combination meter assembly is 11.5 V or more.	Turn the ignition switch to ON and wait at least 11 seconds.	SRS warning light illuminates. Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0163	Lost Communication with Navigation Control Module	The combination meter assembly does not receive data from the navigation receiver assembly for 3 seconds or more.1 The combination meter assembly does not receive data from the radio and display receiver assembly for 3 seconds or more.2	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the combination meter assembly is 11.5 V or more.	Turn the ignition switch to ON and wait at least 4 seconds.	-	DTC is stored until it is cleared using the GTS.
U0182	Lost Communication with Lighting Control Module Front	The combination meter assembly does not receive data from the headlight leveling ECU assembly for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the combination meter assembly is 11.5 V or more.	Turn the ignition switch to ON and wait at least 11 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U023A	Lost Communication with Front Camera Module	The combination meter assembly does not receive data from the lane departure warning camera for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the combination meter assembly is 11.5 V or more.	Turn the ignition switch to ON and wait at least 11 seconds.	Lane departure alert indicator light illuminates. Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1104	Lost Communication with Driving Support ECU	The combination meter assembly does not receive data from the driving support ECU assembly for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the combination meter assembly is 11.5 V or more.	Turn the ignition switch to ON and wait at least 11 seconds.	PCS warning light flashes. Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Outer Mirror Control ECU Assembly (for Front Passenger Side) / GTS Display "Mirror R" (for LHD), "Mirror L" (for RHD)

Body Electrical > Mirror R > Trouble Codes
Body Electrical > Mirror L > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Outer Mirror Control ECU Assembly (for Front Passenger Side) / GTS Display "Mirror R" (for LHD), "Mirror L" (for RHD)
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0142	Lost Communication with Body Control Module ''B''	The outer mirror control ECU assembly (for front passenger side) does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected. The power source voltage of the outer mirror control ECU assembly (for front passenger side) is 10 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the GTS.

Outer Mirror Control ECU Assembly (for Driver Side) / GTS Display "Mirror L" (for LHD), "Mirror R" (for RHD)

Body Electrical > Mirror L > Trouble Codes
Body Electrical > Mirror R > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Outer Mirror Control ECU Assembly (for Driver Side) / GTS Display "Mirror L" (for LHD), "Mirror R" (for RHD)
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0142	Lost Communication with Body Control Module ''B''	The outer mirror control ECU assembly (for driver side) does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected. The power source voltage of the outer mirror control ECU assembly (for driver side) is 10 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the GTS.

Multiplex Network Door ECU / GTS Display "Back Door"

Body Electrical > Back Door > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Multiplex Network Door ECU / GTS Display "Back Door"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0101	Lost Communication with TCM	The multiplex network door ECU does not receive data from the ECM for 10 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the multiplex network door ECU is 10.5 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the GTS.
U0122	Lost Communication with Vehicle Dynamics Control Module	The multiplex network door ECU does not receive data from the skid control ECU (brake actuator assembly) for 10 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the multiplex network door ECU is 10.5 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	The multiplex network door ECU does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the multiplex network door ECU is 10.5 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	The multiplex network door ECU does not receive data from the combination meter assembly for 10 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the multiplex network door ECU is 10.5 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the GTS.

ECM / GTS Display "Radar Cruise"

Powertrain > Radar Cruise > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*1: Dynamic radar cruise control system DTC
*2: If U0235 or U1102 is output alone, the CAN communication is normal (Click here for U0235, Click here for U1102).

ECM / GTS Display "Radar Cruise"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100*1	Lost Communication with ECM / PCM "A"	Either condition is met: The ECM detects a communication error signal (from the ECM to the driving support ECU assembly) for 4 seconds or more. The ECM detects a communication error signal (from the ECM to the skid control ECU (brake actuator assembly) for 2 seconds or more.	The radar cruise control system (vehicle control mode) is operating.	Allow the radar cruise control system (vehicle control mode) to operate for 4 seconds or more.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0122*1	Lost Communication with Vehicle Dynamics Control Module	Either condition is met: The ECM detects a communication error signal (from the skid control ECU (brake actuator assembly) to the driving support ECU assembly) for 4 seconds or more. The ECM does not receive data from the skid control ECU (brake actuator assembly) for 3 seconds or more.	The radar cruise control system (vehicle control mode) is operating.	Allow the radar cruise control system (vehicle control mode) to operate for 4 seconds or more.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0123*1	Lost Communication with Yaw Rate Sensor Module	The ECM detects a communication error signal (from the airbag sensor assembly to the driving support ECU assembly) for 1 second or more.	The radar cruise control system (vehicle control mode) is operating.	Allow the radar cruise control system (vehicle control mode) to operate for 1 second or more.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126*1	Lost Communication with Steering Angle Sensor Module	The ECM detects a communication error signal (from the steering sensor to the driving support ECU assembly) for 4 seconds or more.	The radar cruise control system (vehicle control mode) is operating.	Allow the radar cruise control system (vehicle control mode) to operate for 4 seconds or more.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0235*2	Lost Communication with Cruise Control Front Distance Range Sensor	The ECM detects a communication error signal (from the millimeter wave radar sensor assembly to the driving support ECU assembly) for 1 second or more.	The radar cruise control system (vehicle control mode) is operating.	Allow the radar cruise control system (vehicle control mode) to operate for 1 second or more.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1102*2	Lost Communication with Radar Sensor	The ECM detects a communication error signal (from the driving support ECU assembly to the millimeter wave radar sensor) for 1 second or more.	The radar cruise control system (vehicle control mode) is operating.	Allow the radar cruise control system (vehicle control mode) to operate for 1 second or more.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1104*1	Lost Communication with Driving Support ECU	The ECM does not receive data from the driving support ECU assembly for 1 second or more.	The radar cruise control system (vehicle control mode) is operating.	Allow the radar cruise control system (vehicle control mode) to operate for 1 second or more.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Driving Support ECU Assembly / GTS Display "Pre-Crash 2"

Body Electrical > Pre-Crash 2 > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*: Refer to Pre-crash Safety System.

Click here

Driving Support ECU Assembly / GTS Display "Pre-Crash 2"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0125	Lost Communication with Yaw Rate Sensor Module	The driving support ECU assembly does not receive data from the airbag sensor assembly for 0.772 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 3.772 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	The driving support ECU assembly does not receive data from the steering sensor for 3.76 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 4.76 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	The driving support ECU assembly does not receive data from the skid control ECU (brake actuator assembly) for 5.24 seconds or more.	Both conditions are met: The ignition switch is ON for 2 seconds or more. The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 7.24 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	The driving support ECU assembly does not receive data from the main body ECU (multiplex network body ECU) for 14.2 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 15.2 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0235*	Lost Communication with Cruise Control Front Distance Range Sensor	The driving support ECU assembly does not receive data from the millimeter wave radar sensor assembly for 0.65 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 1.65 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1002	Lost Communication with Gateway Module	The driving support ECU assembly does not receive data from ECU with a sub bus 13 connection record for 0.5 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 1.5 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1104*	Lost Communication with Driving Support ECU	The ECM, skid control ECU (brake actuator assembly) or millimeter wave radar sensor assembly does not receive data from the driving support ECU assembly for 4.5 seconds or more.	The engine switch is on (IG) for 2 seconds or more.	Turn the ignition switch to ON and wait at least 6.5 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Clearance Warning ECU Assembly / GTS Display "Clearance Sonar"

Body Electrical > Clearance Sonar > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Clearance Warning ECU Assembly / GTS Display "Clearance Sonar"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0101	Lost Communication with TCM	The clearance warning ECU assembly does not receive data from the ECM for 5 seconds or more.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	The clearance warning ECU assembly does not receive data from the combination meter assembly for 5 seconds or more.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the GTS.

4WD ECU Assembly / GTS Display "Four Wheel Drive"

Chassis > Four Wheel Drive > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.

4WD ECU Assembly / GTS Display "Four Wheel Drive"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0073	Control Module Communication Bus Off	The 4WD ECU assembly keeps sending data to an ECU or a sensor for 5 seconds or more because a receive completion signal is not received.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the 4WD ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 6 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0100	Lost Communication with ECM / PCM "A"	The 4WD ECU assembly does not receive data from the ECM for 3.5 seconds or more.	All conditions are met: The ignition switch is ON for 1 second or more. Vehicle speed is 60 km/h (37 mph) or more. The power source voltage of the 4WD ECU assembly is 10 V or more.	Drive the vehicle at a speed of 60 km/h (37 mph) or more for 4.5 seconds or more.	-	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Either of the following conditions is met: The 4WD ECU assembly does not receive data from the steering sensor for 1 second or more. condition occurs 10 times or more within 60 seconds: The 4WD ECU assembly does not receive data from the steering sensor once or more within 5 seconds.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the 4WD ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 60 seconds.	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	The 4WD ECU assembly does not receive data from the skid control ECU (brake actuator assembly) for 8 seconds or more.	Both conditions are met: The ignition switch is ON for 2 seconds or more. The power source voltage of the 4WD ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Blind Spot Monitor Sensor LH / GTS Display "Blind Spot Monitor Master"

Body Electrical > Blind Spot Monitor Master > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*: If U0232 or U1331 is output alone, the CAN communication is normal (Click here for U0232, Click here for U1331

Blind Spot Monitor Sensor LH / GTS Display "Blind Spot Monitor Master"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM / PCM "A"	The blind spot monitor sensor LH does not receive data from the ECM for 10.84 seconds or more.	All conditions are met: The ignition switch is ON for 1 second or more. Blind spot monitor main switch is on. The power source voltage of the blind spot monitor sensor LH is 10 V or more.	Turn the ignition switch to ON, turn the blind spot monitor system on using the blind spot monitor main switch (ON/OFF switch) and wait at least 11.84 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	The blind spot monitor sensor LH does not receive data from the steering sensor for 10.68 seconds or more.	All conditions are met: The ignition switch is ON for 1 second or more. Blind spot monitor main switch is on. The power source voltage of the blind spot monitor sensor LH is 10 V or more.	Turn the ignition switch to ON, turn the blind spot monitor system on using the blind spot monitor main switch (ON/OFF switch) and wait at least 11.68 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	The blind spot monitor sensor LH does not receive data from the skid control ECU (brake actuator assembly) for 2.334 seconds or more.	All conditions are met: The ignition switch is ON for 1 second or more. Blind spot monitor main switch is on. The power source voltage of the blind spot monitor sensor LH is 10 V or more.	Turn the ignition switch to ON, turn the blind spot monitor system on using the blind spot monitor main switch (ON/OFF switch) and wait at least 3.334 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	The blind spot monitor sensor LH does not receive data from the main body ECU (multiplex network body ECU) for 10.6 seconds or more.	All conditions are met: The ignition switch is ON for 1 second or more. Blind spot monitor main switch is on. The power source voltage of the blind spot monitor sensor LH is 10 V or more.	Turn the ignition switch to ON, turn the blind spot monitor system on using the blind spot monitor main switch (ON/OFF switch) and wait at least 11.6 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0232*	Lost Communication with Blind Spot Monitor Slave Module	The blind spot monitor sensor LH does not receive data from the blind spot monitor sensor RH for 10.6 seconds or more.	All conditions are met: The ignition switch is ON for 1 second or more. Blind spot monitor main switch is on. The power source voltage of the blind spot monitor sensor LH is 10 V or more.	Turn the ignition switch to ON, turn the blind spot monitor system on using the blind spot monitor main switch (ON/OFF switch) and wait at least 11.6 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1331*	Software Incompatibility with Body Control Module "B"	Destination information of the main body ECU (multiplex network body ECU) and blind spot monitor sensor do not match.	All conditions are met: The ignition switch is ON for 1 second or more. Blind spot monitor main switch is on. The power source voltage of the blind spot monitor sensor LH is 10 V or more.	Turn the ignition switch to ON, turn the blind spot monitor system on using the blind spot monitor main switch (ON/OFF switch) and wait at least 1 second.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Lane Departure Warning Camera / GTS Display "Lane Departure Alert"

Chassis > Lane Departure Alert > Trouble Codes

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*: The lane departure warning camera monitors its internal condition, when an internal malfunction is detected, the lane departure warning camera stores U1000 and cancels lane departure alert system control.

Click here

Lane Departure Warning Camera / GTS Display "Lane Departure Alert"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0101	Lost Communication with TCM	The lane departure warning camera does not receive data from the ECM for 5 seconds or more.	All conditions are met: The ignition switch is ON for 2 seconds or more. Vehicle speed is 1 km/h (1 mph) or more. The power source voltage of the lane departure warning camera is 10 V or more.	Drive the vehicle at a speed of 1 km/h (1 mph) or more for 7 seconds or more.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0123	Lost Communication with Yaw Rate Sensor Module	The lane departure warning camera does not receive data from the airbag sensor assembly for 5 seconds or more.	Both conditions are met: The ignition switch is ON for 2 seconds or more. Vehicle speed is 1 km/h (1 mph) or more. The power source voltage of the lane departure warning camera is 10 V or more.	Drive the vehicle at a speed of 1 km/h (1 mph) or more for 7 seconds or more.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	The lane departure warning camera does not receive data from the skid control ECU (brake actuator assembly) for 5 seconds or more.	Both conditions are met: The ignition switch is ON for 2 seconds or more. The power source voltage of the lane departure warning camera is 10 V or more.	Turn the ignition switch to ON and wait at least 7 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	The lane departure warning camera does not receive data from the main body ECU (multiplex network body ECU) for 5 seconds or more.	Both conditions are met: The ignition switch is ON for 2 seconds or more. The power source voltage of the lane departure warning camera is 10 V or more.	Turn the ignition switch to ON and wait at least 7 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	The lane departure warning camera does not receive data from the combination meter assembly for 50 seconds or more.	Both conditions are met: The ignition switch is ON for 2 seconds or more. The power source voltage of the lane departure warning camera is 10 V or more.	Turn the ignition switch to ON and wait at least 52 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1000*	CAN Communication Failure (Message Registry)	When the ignition switch is turned on (IG), a CAN communication malfunction is detected.	The ignition switch is ON.	Turn the ignition switch to ON.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.

Steering Sensor

Tech Tips

The steering sensor is connected to the CAN communication system, but the steering sensor does not store or output CAN communication DTCs.
Position Control ECU and Switch Assembly

Tech Tips

The position control ECU and switch assembly is connected to the CAN communication system, but the position control ECU and switch assembly does not store or output CAN communication DTCs.
Airbag Sensor Assembly

Tech Tips

The airbag sensor assembly is connected to the CAN communication system, but the airbag sensor assembly does not store or output CAN communication DTCs.
Millimeter Wave Radar Sensor Assembly

Tech Tips

The millimeter wave radar sensor assembly is connected to the CAN communication system, but the millimeter wave radar sensor assembly does not store or output CAN communication DTCs.

DTC COMBINATION TABLE (OPEN IN CAN BRANCH OF V BUS, PAST COMMUNICATION ERROR)

Regarding a past communication error of an ECU and sensor connected to the V bus (in this case, normal is displayed when performing the CAN bus check, but communication DTCs are output), the probable CAN branch that had a malfunction can be determined based on the following DTC combination table.

Tech Tips

Based on the table below and DTCs output from ECUs connected via CAN communication, the probable part for which communication stop occurred can be determined.
Regarding an open in a CAN branch and a communication stop that is currently occurring, the malfunctioning part can be confirmed easily by performing the CAN bus check using the GTS because the ECU or sensor connected to the CAN branch does not respond (the ECU or sensor name will not be displayed on the screen).
If an open in a CAN main bus line, a short between the CAN bus lines (CANH and CANL) or a +B or ground short in the CAN bus occurs, DTCs of almost all ECUs (or sensors) on the CAN bus may be output, or a message indicating a communication error may be displayed on the GTS screen. In this case, check the resistance of the CAN bus (steps 7 to 9) first.

Click here
If an open occurs in just one of the lines of a CAN branch, DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.

for LHD
-			Trouble Mode (Open in One CAN Branch Line)
-			V Bus
Output ECU		Output DTC	Center Airbag Sensor Communication Stop Mode Click here	Air Conditioning Amplifier Communication Stop Mode Click here	AFS ECU Communication Stop Mode Click here Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	X	▲
		U0131	▲	X	▲
		U0142	▲	X	▲
		U0155	▲	X	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	X
		U0129	▲	▲	X
		U0142	▲	▲	X
	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲
		U0101	▲	▲	▲
		U0120	▲	▲	▲
		U0151	X	▲	▲
		U0155	▲	▲	▲
		U023A	▲	▲	▲
		U0327	▲	▲	▲
		U1126	▲	▲	▲
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	▲	▲
V Bus	4WD ECU Assembly*1	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲
	Combination Meter Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0151	X	▲	▲
		U0163	▲	▲	▲
		U0182	▲	▲	X
		U023A	▲	▲	▲
		U1104	▲	▲	▲
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	X	▲	▲
		U0100	▲	▲	▲
		U0124	X	▲	▲
		U0126	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Television Camera Assembly	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0140	▲	▲	▲
		U0163	▲	▲	▲
	Network Gateway ECU*2	U0233	▲	▲	▲
		U023A	▲	▲	▲
		U0265	▲	▲	▲
		U1002	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	▲	▲	▲
		U0123	X	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲
		U0200	▲	▲	▲
		U0208	▲	▲	▲
		U0230	▲	▲	▲
		U1002	▲	▲	▲
Sub Bus 1	Multiplex Network Door ECU	U0101	▲	▲	▲
		U0122	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-

for LHD
-			Trouble Mode (Open in One CAN Branch Line)
-			V Bus
Output ECU		Output DTC	Radio Receiver Assembly Communication Stop Mode Click here	Main Body ECU Communication Stop Mode Click here	Gateway ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	X	▲
		U0155	▲	▲	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	X	▲
	Radio and Display Receiver Assembly*1	U0100	X	▲	▲
		U0140	X	X	▲
		U0155	X	▲	▲
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	X	▲
		U0101	▲	X	▲
		U0120	▲	X	▲
		U0151	▲	X	▲
		U0155	▲	X	▲
		U023A	▲	X	X
		U0327	▲	X	▲
		U1126	▲	X	X
	Network Gateway ECU*2	-	-	-	-
V Bus	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	▲	▲
	4WD ECU Assembly*1	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲
		U0142	▲	X	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲
		U0140	▲	X	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲
	Combination Meter Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	X	▲
		U0151	▲	▲	▲
		U0163	X	▲	▲
		U0182	▲	▲	▲
		U023A	▲	▲	X
		U1104	▲	▲	X
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	▲	▲
		U0100	▲	▲	▲
		U0124	▲	▲	▲
		U0126	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	▲	▲	X
		U0126	▲	▲	X
		U0129	▲	▲	X
		U0142	▲	X	X
	Television Camera Assembly	U0100	▲	▲	X
		U0126	▲	▲	X
		U0129	▲	▲	X
		U0131	▲	▲	X
		U0140	▲	X	X
		U0163	X	▲	X
	Network Gateway ECU*2	U0233	▲	▲	▲
		U023A	▲	▲	▲
		U0265	▲	▲	▲
		U1002	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	▲	▲	X
		U0123	▲	▲	X
		U0129	▲	▲	X
		U0142	▲	X	X
		U0155	▲	▲	X
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲
		U0200	▲	▲	▲
		U0208	▲	▲	▲
		U0230	▲	▲	▲
		U1002	▲	▲	▲
	Multiplex Network Door ECU	U0101	▲	X	▲
		U0122	▲	X	▲
		U0142	▲	X	▲
		U0155	▲	X	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-

for LHD
-			Trouble Mode (Open in One CAN Branch Line)
-			V Bus
Output ECU		Output DTC	Power Steering ECU Communication Stop Mode Click here	4WD Control ECU Communication Stop Mode Click here	Certification ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
		U0131	X	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
V Bus	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲
		U0101	▲	▲	▲
		U0120	▲	▲	X
		U0151	▲	▲	▲
		U0155	▲	▲	▲
		U023A	▲	▲	▲
		U0327	▲	▲	X
		U1126	▲	▲	▲
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	X	▲	▲
	Power Steering ECU Assembly	U0129	X	▲	▲
	4WD ECU Assembly*1	U0100	▲	X	▲
		U0126	▲	X	▲
		U0129	▲	X	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	X
		U0142	▲	▲	X
		U0155	▲	▲	X
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	X
		U0140	▲	▲	X
		U0155	▲	▲	X
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	X
	Combination Meter Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0131	X	▲	▲
		U0142	▲	▲	▲
		U0151	▲	▲	▲
		U0163	▲	▲	▲
		U0182	▲	▲	▲
		U023A	▲	▲	▲
		U1104	▲	▲	▲
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	▲	▲
		U0100	▲	▲	▲
		U0124	▲	▲	▲
		U0126	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Television Camera Assembly	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0131	X	▲	▲
		U0140	▲	▲	▲
		U0163	▲	▲	▲
Sub Bus 2	Network Gateway ECU*2	U0233	▲	▲	▲
		U023A	▲	▲	▲
		U0265	▲	▲	▲
		U1002	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	▲	▲	▲
		U0123	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲
		U0200	▲	▲	▲
		U0208	▲	▲	▲
		U0230	▲	▲	▲
		U1002	▲	▲	▲
	Multiplex Network Door ECU	U0101	▲	▲	▲
		U0122	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-

for LHD
-			Trouble Mode (Open in One CAN Branch Line)
-			V Bus
Output ECU		Output DTC	Steering Angle Sensor Communication Stop Mode Click here	Brake Actuator (Skid Control ECU) Communication Stop Mode Click here	DLC3
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
V Bus	Headlight Leveling ECU Assembly	U0100	▲	▲	▲
		U0129	▲	X	▲
		U0142	▲	▲	▲
	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲
		U0101	▲	▲	▲
		U0120	▲	▲	▲
		U0151	▲	▲	▲
		U0155	▲	▲	▲
		U023A	▲	▲	▲
		U0327	▲	▲	▲
		U1126	▲	▲	▲
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	X	▲
	4WD ECU Assembly*1	U0100	▲	▲	▲
		U0126	X	▲	▲
		U0129	▲	X	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲
	Combination Meter Assembly	U0100	▲	▲	▲
		U0129	▲	X	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0151	▲	▲	▲
		U0163	▲	▲	▲
		U0182	▲	▲	▲
		U023A	▲	▲	▲
		U1104	▲	▲	▲
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	X	▲
		U0100	▲	X	▲
		U0124	▲	X	▲
		U0126	X	X	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	▲	▲	▲
		U0126	X	▲	▲
		U0129	▲	X	▲
		U0142	▲	▲	▲
Sub Bus 2	Television Camera Assembly	U0100	▲	▲	▲
		U0126	X	▲	▲
		U0129	▲	X	▲
		U0131	▲	▲	▲
		U0140	▲	▲	▲
		U0163	▲	▲	▲
	Network Gateway ECU*2	U0233	▲	▲	▲
		U023A	▲	▲	▲
		U0265	▲	▲	▲
		U1002	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	▲	▲	▲
		U0123	▲	▲	▲
		U0129	▲	X	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲
		U0200	▲	▲	▲
		U0208	▲	▲	▲
		U0230	▲	▲	▲
		U1002	▲	▲	▲
	Multiplex Network Door ECU	U0101	▲	▲	▲
		U0122	▲	X	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

X: DTC is likely to be output.
▲: DTC is unlikely to be output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for LHD
-			Trouble Mode (Open in Both CAN Branch Lines)
-			V Bus
Output ECU		Output DTC	Center Airbag Sensor Communication Stop Mode Click here	Air Conditioning Amplifier Communication Stop Mode Click here	AFS ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	○	-
		U0131	-	○	-
		U0142	-	○	-
		U0155	-	○	-
	Headlight Leveling ECU Assembly	U0100	-	-	○
		U0129	-	-	○
		U0142	-	-	○
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	○	-	-
		U0155	-	-	-
		U023A	-	-	-
		U0327	-	-	-
		U1126	-	-	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
V Bus	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	○	-	-
		U0163	-	-	-
		U0182	-	-	○
		U023A	-	-	-
		U1104	-	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	○	-	-
		U0100	-	-	-
		U0124	○	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Television Camera Assembly	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0163	-	-	-
	Network Gateway ECU*2	U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Lane Departure Warning Camera*1	U0101	-	-	-
		U0123	○	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0155	-	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	-	-	-
		U0122	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-

for LHD
-			Trouble Mode (Open in Both CAN Branch Lines)
-			V Bus
Output ECU		Output DTC	Radio Receiver Assembly Communication Stop Mode Click here	Main Body ECU Communication Stop Mode Click here	Gateway ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	○	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Radio and Display Receiver Assembly*1	U0100	○	-	-
		U0140	○	○	-
		U0155	○	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	○	-
		U0101	-	○	-
		U0120	-	○	-
		U0151	-	○	-
		U0155	-	○	-
		U023A	-	○	○
		U0327	-	○	-
		U1126	-	○	○
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	○	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
V Bus	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	○	-
		U0151	-	-	-
		U0163	○	-	-
		U0182	-	-	-
		U023A	-	-	○
		U1104	-	-	○
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	○
		U0126	-	-	○
		U0129	-	-	○
		U0142	-	○	○
	Television Camera Assembly	U0100	-	-	○
		U0126	-	-	○
		U0129	-	-	○
		U0131	-	-	○
		U0140	-	○	○
		U0163	○	-	○
	Network Gateway ECU*2	U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Lane Departure Warning Camera*1	U0101	-	-	○
		U0123	-	-	○
		U0129	-	-	○
		U0142	-	○	○
		U0155	-	-	○
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	-	○	-
		U0122	-	○	-
		U0142	-	○	-
		U0155	-	○	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
Sub Bus 1	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
Sub Bus 1	Position Control ECU and Switch Assembly	-	-	-	-

for LHD
-			Trouble Mode (Open in Both CAN Branch Lines)
-			V Bus
Output ECU		Output DTC	Power Steering ECU Communication Stop Mode Click here	4WD Control ECU Communication Stop Mode Click here	Certification ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	○	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	○
		U0151	-	-	-
		U0155	-	-	-
		U023A	-	-	-
		U0327	-	-	○
		U1126	-	-	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	○	-	-
	Power Steering ECU Assembly	U0129	○	-	-
	4WD ECU Assembly*1	U0100	-	○	-
		U0126	-	○	-
		U0129	-	○	-
V Bus	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	○
		U0142	-	-	○
		U0155	-	-	○
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	○
		U0140	-	-	○
		U0155	-	-	○
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	○
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	○	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	-	-	-
		U1104	-	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Television Camera Assembly	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0131	○	-	-
		U0140	-	-	-
		U0163	-	-	-
	Network Gateway ECU*2	U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Lane Departure Warning Camera*1	U0101	-	-	-
		U0123	-	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0155	-	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
Sub Bus 1	Multiplex Network Door ECU	U0101	-	-	-
		U0122	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-

for LHD
-			Trouble Mode (Open in Both CAN Branch Lines)
-			V Bus
Output ECU		Output DTC	Steering Angle Sensor Communication Stop Mode Click here	Brake Actuator (Skid Control ECU) Communication Stop Mode Click here	DLC3
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	○	-
		U0142	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	-	-	-
		U0327	-	-	-
		U1126	-	-	-
V Bus	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	○	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	-	-	-
		U1104	-	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	○	-
		U0100	-	○	-
		U0124	-	○	-
		U0126	○	○	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-
		U0126	○	-	-
		U0129	-	○	-
		U0142	-	-	-
	Television Camera Assembly	U0100	-	-	-
		U0126	○	-	-
		U0129	-	○	-
		U0131	-	-	-
		U0140	-	-	-
		U0163	-	-	-
	Network Gateway ECU*2	U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
Sub Bus 2	Lane Departure Warning Camera*1	U0101	-	-	-
		U0123	-	-	-
		U0129	-	○	-
		U0142	-	-	-
		U0155	-	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	-	-	-
		U0122	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for LHD
-			Trouble Mode (Open in One CAN Main Bus Line)
-			V Bus
Output ECU		Output DTC	ECM Communication Stop Mode Click here	No. 3 CAN Junction Connector to No. 4 CAN Junction Connector	Combination Meter ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	X	X	▲
		U0131	▲	X	▲
		U0142	▲	X	▲
		U0155	▲	▲	X
	Headlight Leveling ECU Assembly	U0100	X	▲	▲
		U0129	▲	X	▲
		U0142	▲	▲	▲
	Radio and Display Receiver Assembly*1	U0100	X	X	▲
		U0140	▲	X	▲
		U0155	▲	▲	X
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	X	▲	▲
		U0101	X	▲	▲
		U0120	▲	X	▲
		U0151	▲	X	▲
		U0155	▲	X	X
		U023A	▲	X	▲
		U0327	▲	X	▲
		U1126	▲	X	▲
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	X	▲	▲
	Power Steering ECU Assembly	U0129	▲	X	▲
	4WD ECU Assembly*1	U0100	X	▲	▲
		U0126	▲	▲	▲
		U0129	▲	X	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	X	X	▲
		U0142	▲	X	▲
		U0155	▲	▲	X
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	X	X	▲
		U0140	▲	X	▲
		U0155	▲	▲	X
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	X	X	▲
	Combination Meter Assembly	U0100	X	X	X
		U0129	▲	▲	X
		U0131	▲	X	X
		U0142	▲	X	X
		U0151	▲	▲	X
		U0163	▲	▲	X
		U0182	▲	X	X
		U023A	▲	▲	X
		U1104	▲	▲	X
	Steering Sensor	-	-	-	-
V Bus	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	▲	▲
		U0100	X	X	▲
		U0124	▲	▲	▲
		U0126	▲	X	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	X	▲	▲
		U0126	▲	X	▲
		U0129	▲	▲	▲
		U0142	▲	X	▲
	Television Camera Assembly	U0100	X	▲	▲
		U0126	▲	X	▲
		U0129	▲	▲	▲
		U0131	▲	X	▲
		U0140	▲	▲	▲
		U0163	▲	▲	▲
	Network Gateway ECU*2	U0233	▲	▲	▲
		U023A	▲	▲	▲
		U0265	▲	▲	▲
		U1002	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	X	X	▲
		U0123	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	X	▲
		U0155	▲	▲	X
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲
		U0200	▲	▲	▲
		U0208	▲	▲	▲
		U0230	▲	▲	▲
		U1002	▲	▲	▲
	Multiplex Network Door ECU	U0101	X	▲	▲
		U0122	▲	X	▲
		U0142	▲	▲	▲
		U0155	▲	X	X
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

X: DTC is likely to be output.
▲: DTC is unlikely to be output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for LHD
-			Trouble Mode (Open in Both CAN Main Bus Lines)
-			V Bus
Output ECU		Output DTC	ECM Communication Stop Mode Click here	No. 3 CAN Junction Connector to No. 4 CAN Junction Connector	Combination Meter ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	○	○	-
		U0131	-	○	-
		U0142	-	○	-
		U0155	-	-	○
	Headlight Leveling ECU Assembly	U0100	○	-	-
		U0129	-	○	-
		U0142	-	-	-
	Radio and Display Receiver Assembly*1	U0100	○	○	-
		U0140	-	○	-
		U0155	-	-	○
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	○	-	-
		U0101	○	-	-
		U0120	-	○	-
		U0151	-	○	-
		U0155	-	○	○
		U023A	-	○	-
		U0327	-	○	-
		U1126	-	○	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	○	-	-
	Power Steering ECU Assembly	U0129	-	○	-
	4WD ECU Assembly*1	U0100	○	-	-
		U0126	-	-	-
		U0129	-	○	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	○	○	-
		U0142	-	○	-
		U0155	-	-	○
V Bus	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	○	○	-
		U0140	-	○	-
		U0155	-	-	○
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	○	○	-
	Combination Meter Assembly	U0100	○	○	○
		U0129	-	-	○
		U0131	-	○	○
		U0142	-	○	○
		U0151	-	-	○
		U0163	-	-	○
		U0182	-	○	○
		U023A	-	-	○
		U1104	-	-	○
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	○	○	-
		U0124	-	-	-
		U0126	-	○	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	○	-	-
		U0126	-	○	-
		U0129	-	-	-
		U0142	-	○	-
	Television Camera Assembly	U0100	○	-	-
		U0126	-	○	-
		U0129	-	-	-
		U0131	-	○	-
		U0140	-	-	-
		U0163	-	-	-
	Network Gateway ECU*2	U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Lane Departure Warning Camera*1	U0101	○	-	-
		U0123	-	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0155	-	-	○
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	○	-	-
		U0122	-	○	-
		U0142	-	-	-
		U0155	-	○	○
Sub Bus 1	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for LHD
-			Trouble Mode (CAN Bus Lines Short Circuit or Short to GND)
-			V Bus
Output ECU		Output DTC	CANH to CANL	CANH to Ground Short	CANL to Ground Short
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	○	○	○
		U0131	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Headlight Leveling ECU Assembly	U0100	○	○	○
		U0129	○	○	○
		U0142	○	○	○
	Radio and Display Receiver Assembly*1	U0100	○	○	○
		U0140	○	○	○
		U0155	○	○	○
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	○	○	○
		U0101	○	○	○
		U0120	○	○	○
		U0151	○	○	○
		U0155	○	○	○
		U023A	○	○	○
		U0327	○	○	○
		U1126	○	○	○
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
V Bus	Power Steering ECU Assembly	U0100	○	○	○
	Power Steering ECU Assembly	U0129	○	○	○
	4WD ECU Assembly*1	U0100	○	○	○
		U0126	○	○	○
		U0129	○	○	○
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	○	○	○
		U0140	○	○	○
		U0155	○	○	○
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	○	○	○
	Combination Meter Assembly	U0100	○	○	○
		U0129	○	○	○
		U0131	○	○	○
		U0142	○	○	○
		U0151	○	○	○
		U0163	○	○	○
		U0182	○	○	○
		U023A	○	○	○
		U1104	○	○	○
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	○	○	○
		U0100	○	○	○
		U0124	○	○	○
		U0126	○	○	○
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0142	○	○	○
	Television Camera Assembly	U0100	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0131	○	○	○
		U0140	○	○	○
		U0163	○	○	○
	Network Gateway ECU*2	U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Lane Departure Warning Camera*1	U0101	○	○	○
		U0123	○	○	○
		U0129	○	○	○
		U0142	○	○	○
		U0155	○	○	○
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	○	○	○
		U0122	○	○	○
		U0142	-	-	-
		U0155	○	○	○
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (Open in One CAN Branch Line)
-			V Bus
Output ECU		Output DTC	Center Airbag Sensor Communication Stop Mode Click here	Air Conditioning Amplifier Communication Stop Mode Click here	AFS ECU Communication Stop Mode Click here	Navigation Receiver Assembly Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
V Bus	Air Conditioning Amplifier Assembly	U0100	▲	X	▲	▲
		U0131	▲	X	▲	▲
		U0142	▲	X	▲	▲
		U0155	▲	X	▲	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	X	▲
		U0129	▲	▲	X	▲
		U0142	▲	▲	X	▲
	Navigation Receiver Assembly*1	U0100	▲	▲	▲	X
		U0140	▲	▲	▲	X
		U0155	▲	▲	▲	X
	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲	-
		U0140	▲	▲	▲	-
		U0155	▲	▲	▲	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲	▲
		U0101	▲	▲	▲	▲
		U0120	▲	▲	▲	▲
		U0151	X	▲	▲	▲
		U0155	▲	▲	▲	▲
		U023A	▲	▲	▲	▲
		U0327	▲	▲	▲	▲
		U1126	▲	▲	▲	▲
	Clearance Warning ECU Assembly	U0101	▲	▲	▲	▲
	Clearance Warning ECU Assembly	U0155	▲	▲	▲	▲
	Network Gateway ECU*2	-	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-	-
	ECM (Radar cruise function)	U0100	▲	▲	▲	▲
		U0122	▲	▲	▲	▲
		U0123	X	▲	▲	▲
		U0126	▲	▲	▲	▲
		U1104	▲	▲	▲	▲
	Power Steering ECU Assembly	U0100	▲	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	▲	▲	▲
	4WD ECU Assembly*1	U0100	▲	▲	▲	▲
		U0126	▲	▲	▲	▲
		U0129	▲	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲	▲
		U0142	▲	▲	▲	▲
		U0155	▲	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲	▲
		U0140	▲	▲	▲	▲
		U0155	▲	▲	▲	▲
V Bus	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲	▲
	Combination Meter Assembly	U0100	▲	▲	▲	▲
		U0129	▲	▲	▲	▲
		U0131	▲	▲	▲	▲
		U0142	▲	▲	▲	▲
		U0151	X	▲	▲	▲
		U0163	▲	▲	▲	X
		U0182	▲	▲	X	▲
		U023A	▲	▲	▲	▲
		U1104	▲	▲	▲	▲
	Steering Sensor	-	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	X	▲	▲	▲
		U0100	▲	▲	▲	▲
		U0124	X	▲	▲	▲
		U0126	▲	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	▲	▲	▲	▲
		U0126	▲	▲	▲	▲
		U0129	▲	▲	▲	▲
		U0142	▲	▲	▲	▲
	Television Camera Assembly	U0100	▲	▲	▲	▲
		U0126	▲	▲	▲	▲
		U0129	▲	▲	▲	▲
		U0131	▲	▲	▲	▲
		U0140	▲	▲	▲	▲
		U0163	▲	▲	▲	X
		U1110	▲	▲	▲	▲
	Network Gateway ECU*2	U0104	▲	▲	▲	▲
		U0233	▲	▲	▲	▲
		U023A	▲	▲	▲	▲
		U0265	▲	▲	▲	▲
		U1002	▲	▲	▲	▲
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	X	▲	▲	▲
		U0126	▲	▲	▲	▲
		U0129	▲	▲	▲	▲
		U0142	▲	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	▲	▲	▲	▲
		U0123	X	▲	▲	▲
		U0129	▲	▲	▲	▲
		U0142	▲	▲	▲	▲
		U0155	▲	▲	▲	▲
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲	▲
		U0200	▲	▲	▲	▲
		U0208	▲	▲	▲	▲
		U0230	▲	▲	▲	▲
		U1002	▲	▲	▲	▲
	Multiplex Network Door ECU	U0101	▲	▲	▲	▲
		U0122	▲	▲	▲	▲
		U0142	▲	▲	▲	▲
		U0155	▲	▲	▲	▲
Sub Bus 1	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-	-

for RHD
-			Trouble Mode (Open in One CAN Branch Line)
-			V Bus
Output ECU		Output DTC	Radio Receiver Assembly Communication Stop Mode Click here	Main Body ECU Communication Stop Mode Click here	Clearance Warning ECU Communication Stop Mode Click here	Gateway ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲	▲
		U0131	▲	▲	▲	▲
		U0142	▲	X	▲	▲
		U0155	▲	▲	▲	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	▲	▲
		U0129	▲	▲	▲	▲
		U0142	▲	X	▲	▲
	Navigation Receiver Assembly*1	U0100	-	▲	▲	▲
		U0140	-	X	▲	▲
		U0155	-	▲	▲	▲
	Radio and Display Receiver Assembly*1	U0100	X	▲	▲	▲
		U0140	X	X	▲	▲
		U0155	X	▲	▲	▲
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	X	▲	▲
		U0101	▲	X	▲	▲
		U0120	▲	X	▲	▲
		U0151	▲	X	▲	▲
		U0155	▲	X	▲	▲
		U023A	▲	X	▲	X
		U0327	▲	X	▲	▲
		U1126	▲	X	▲	X
V Bus	Clearance Warning ECU Assembly	U0101	▲	▲	X	▲
	Clearance Warning ECU Assembly	U0155	▲	▲	X	▲
	Network Gateway ECU*2	-	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-	-
	ECM (Radar cruise function)	U0100	▲	▲	▲	▲
		U0122	▲	▲	▲	▲
		U0123	▲	▲	▲	▲
		U0126	▲	▲	▲	▲
		U1104	▲	▲	▲	X
	Power Steering ECU Assembly	U0100	▲	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	▲	▲	▲
	4WD ECU Assembly*1	U0100	▲	▲	▲	▲
		U0126	▲	▲	▲	▲
		U0129	▲	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲	▲
		U0142	▲	X	▲	▲
		U0155	▲	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲	▲
		U0140	▲	X	▲	▲
		U0155	▲	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲	▲
	Combination Meter Assembly	U0100	▲	▲	▲	▲
		U0129	▲	▲	▲	▲
		U0131	▲	▲	▲	▲
		U0142	▲	X	▲	▲
		U0151	▲	▲	▲	▲
		U0163	X	▲	▲	▲
		U0182	▲	▲	▲	▲
		U023A	▲	▲	▲	X
		U1104	▲	▲	▲	X
	Steering Sensor	-	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	▲	▲	▲
		U0100	▲	▲	▲	▲
		U0124	▲	▲	▲	▲
		U0126	▲	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	▲	▲	▲	X
		U0126	▲	▲	▲	X
		U0129	▲	▲	▲	X
		U0142	▲	X	▲	X
	Television Camera Assembly	U0100	▲	▲	▲	X
		U0126	▲	▲	▲	X
		U0129	▲	▲	▲	X
		U0131	▲	▲	▲	X
		U0140	▲	X	▲	X
		U0163	X	▲	▲	X
		U1110	▲	▲	X	X
	Network Gateway ECU*2	U0104	▲	▲	▲	▲
		U0233	▲	▲	▲	▲
		U023A	▲	▲	▲	▲
		U0265	▲	▲	▲	▲
		U1002	▲	▲	▲	▲
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	▲	▲	▲	X
		U0126	▲	▲	▲	X
		U0129	▲	▲	▲	X
		U0142	▲	X	▲	X
	Lane Departure Warning Camera*1	U0101	▲	▲	▲	X
		U0123	▲	▲	▲	X
		U0129	▲	▲	▲	X
		U0142	▲	X	▲	X
		U0155	▲	▲	▲	X
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲	▲
		U0200	▲	▲	▲	▲
		U0208	▲	▲	▲	▲
		U0230	▲	▲	▲	▲
		U1002	▲	▲	▲	▲
	Multiplex Network Door ECU	U0101	▲	X	▲	▲
		U0122	▲	X	▲	▲
		U0142	▲	X	▲	▲
		U0155	▲	X	▲	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-	-

for RHD
-			Trouble Mode (Open in One CAN Branch Line)
-			V Bus
Output ECU		Output DTC	Power Steering ECU Communication Stop Mode Click here	4WD Control ECU Communication Stop Mode Click here	Certification ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
		U0131	X	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Navigation Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲
		U0101	▲	▲	▲
		U0120	▲	▲	X
		U0151	▲	▲	▲
		U0155	▲	▲	▲
		U023A	▲	▲	▲
		U0327	▲	▲	X
		U1126	▲	▲	▲
	Clearance Warning ECU Assembly	U0101	▲	▲	▲
	Clearance Warning ECU Assembly	U0155	▲	▲	▲
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	ECM (Radar cruise function)	U0100	▲	▲	▲
		U0122	▲	▲	▲
		U0123	▲	▲	▲
		U0126	▲	▲	▲
		U1104	▲	▲	▲
	Power Steering ECU Assembly	U0100	X	▲	▲
	Power Steering ECU Assembly	U0129	X	▲	▲
	4WD ECU Assembly*1	U0100	▲	X	▲
		U0126	▲	X	▲
		U0129	▲	X	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	X
		U0142	▲	▲	X
		U0155	▲	▲	X
V Bus	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	X
		U0140	▲	▲	X
		U0155	▲	▲	X
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	X
	Combination Meter Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0131	X	▲	▲
		U0142	▲	▲	▲
		U0151	▲	▲	▲
		U0163	▲	▲	▲
		U0182	▲	▲	▲
		U023A	▲	▲	▲
		U1104	▲	▲	▲
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	▲	▲
		U0100	▲	▲	▲
		U0124	▲	▲	▲
		U0126	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Television Camera Assembly	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0131	X	▲	▲
		U0140	▲	▲	▲
		U0163	▲	▲	▲
		U1110	▲	▲	▲
	Network Gateway ECU*2	U0104	▲	▲	▲
		U0233	▲	▲	▲
		U023A	▲	▲	▲
		U0265	▲	▲	▲
		U1002	▲	▲	▲
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	▲	▲	▲
		U0123	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲
		U0200	▲	▲	▲
		U0208	▲	▲	▲
		U0230	▲	▲	▲
		U1002	▲	▲	▲
Sub Bus 1	Multiplex Network Door ECU	U0101	▲	▲	▲
		U0122	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-

for RHD
-			Trouble Mode (Open in One CAN Branch Line)
-			V Bus
Output ECU		Output DTC	Steering Angle Sensor Communication Stop Mode Click here	Brake Actuator (Skid Control ECU) Communication Stop Mode Click here	DLC3
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	▲
		U0129	▲	X	▲
		U0142	▲	▲	▲
	Navigation Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
V Bus	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲
		U0101	▲	▲	▲
		U0120	▲	▲	▲
		U0151	▲	▲	▲
		U0155	▲	▲	▲
		U023A	▲	▲	▲
		U0327	▲	▲	▲
		U1126	▲	▲	▲
	Clearance Warning ECU Assembly	U0101	▲	▲	▲
	Clearance Warning ECU Assembly	U0155	▲	▲	▲
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	ECM (Radar cruise function)	U0100	▲	▲	▲
		U0122	▲	X	▲
		U0123	▲	▲	▲
		U0126	X	▲	▲
		U1104	▲	▲	▲
	Power Steering ECU Assembly	U0100	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	X	▲
	4WD ECU Assembly*1	U0100	▲	▲	▲
		U0126	X	▲	▲
		U0129	▲	X	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲
	Combination Meter Assembly	U0100	▲	▲	▲
		U0129	▲	X	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0151	▲	▲	▲
		U0163	▲	▲	▲
		U0182	▲	▲	▲
		U023A	▲	▲	▲
		U1104	▲	▲	▲
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	X	▲
		U0100	▲	X	▲
		U0124	▲	X	▲
		U0126	X	X	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	▲	▲	▲
		U0126	X	▲	▲
		U0129	▲	X	▲
		U0142	▲	▲	▲
	Television Camera Assembly	U0100	▲	▲	▲
		U0126	X	▲	▲
		U0129	▲	X	▲
		U0131	▲	▲	▲
		U0140	▲	▲	▲
		U0163	▲	▲	▲
		U1110	▲	▲	▲
	Network Gateway ECU*2	U0104	▲	▲	▲
		U0233	▲	▲	▲
		U023A	▲	▲	▲
		U0265	▲	▲	▲
		U1002	▲	▲	▲
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	▲	▲	▲
		U0126	X	▲	▲
		U0129	▲	X	▲
		U0142	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	▲	▲	▲
		U0123	▲	▲	▲
		U0129	▲	X	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲
		U0200	▲	▲	▲
		U0208	▲	▲	▲
		U0230	▲	▲	▲
		U1002	▲	▲	▲
	Multiplex Network Door ECU	U0101	▲	▲	▲
		U0122	▲	X	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

X: DTC is likely to be output.
▲: DTC is unlikely to be output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (Open in Both CAN Branch Lines)
-			V Bus
Output ECU		Output DTC	Center Airbag Sensor Communication Stop Mode Click here	Air Conditioning Amplifier Communication Stop Mode Click here	AFS ECU Communication Stop Mode Click here	Navigation Receiver Assembly Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	○	-	-
		U0131	-	○	-	-
		U0142	-	○	-	-
		U0155	-	○	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	○	-
		U0129	-	-	○	-
		U0142	-	-	○	-
	Navigation Receiver Assembly*1	U0100	-	-	-	○
		U0140	-	-	-	○
		U0155	-	-	-	○
	Radio and Display Receiver Assembly*1	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-	-
		U0101	-	-	-	-
		U0120	-	-	-	-
		U0151	○	-	-	-
		U0155	-	-	-	-
		U023A	-	-	-	-
		U0327	-	-	-	-
		U1126	-	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-	-
V Bus	Network Gateway ECU*2	-	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-	-
	ECM (Radar cruise function)	U0100	-	-	-	-
		U0122	-	-	-	-
		U0123	○	-	-	-
		U0126	-	-	-	-
		U1104	-	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-	-
	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0131	-	-	-	-
		U0142	-	-	-	-
		U0151	○	-	-	-
		U0163	-	-	-	○
		U0182	-	-	○	-
		U023A	-	-	-	-
		U1104	-	-	-	-
	Steering Sensor	-	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	○	-	-	-
		U0100	▲	-	-	-
		U0124	○	-	-	-
		U0126	-	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
		U0142	-	-	-	-
Sub Bus 2	Television Camera Assembly	U0100	-	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
		U0131	-	-	-	-
		U0140	-	-	-	-
		U0163	-	-	-	○
		U1110	-	-	-	-
	Network Gateway ECU*2	U0104	-	-	-	-
		U0233	-	-	-	-
		U023A	-	-	-	-
		U0265	-	-	-	-
		U1002	-	-	-	-
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	○	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
		U0142	-	-	-	-
	Lane Departure Warning Camera*1	U0101	-	-	-	-
		U0123	○	-	-	-
		U0129	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-	-
		U0200	-	-	-	-
		U0208	-	-	-	-
		U0230	-	-	-	-
		U1002	-	-	-	-
	Multiplex Network Door ECU	U0101	-	-	-	-
		U0122	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-	-

for RHD
-			Trouble Mode (Open in Both CAN Branch Lines)
-			V Bus
Output ECU		Output DTC	Radio Receiver Assembly Communication Stop Mode Click here	Main Body ECU Communication Stop Mode Click here	Clearance Warning ECU Communication Stop Mode Click here	Gateway ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0131	-	-	-	-
		U0142	-	○	-	-
		U0155	-	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0142	-	-	-	-
	Navigation Receiver Assembly*1	U0100	-	-	-	-
		U0140	-	○	-	-
		U0155	-	-	-	-
	Radio and Display Receiver Assembly*1	U0100	○	-	-	-
		U0140	○	○	-	-
		U0155	○	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	○	-	-
		U0101	-	○	-	-
		U0120	-	○	-	-
		U0151	-	○	-	-
		U0155	-	○	-	-
		U023A	-	○	-	○
		U0327	-	○	-	-
		U1126	-	○	-	○
	Clearance Warning ECU Assembly	U0101	-	-	○	-
	Clearance Warning ECU Assembly	U0155	-	-	○	-
	Network Gateway ECU*2	-	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-	-
	ECM (Radar cruise function)	U0100	-	-	-	-
		U0122	-	-	-	-
		U0123	-	-	-	-
		U0126	-	-	-	-
		U1104	-	-	-	○
	Power Steering ECU Assembly	U0100	-	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-	-
V Bus	4WD ECU Assembly*1	U0100	-	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-	-
	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0131	-	-	-	-
		U0142	-	○	-	-
		U0151	-	-	-	-
		U0163	○	-	-	-
		U0182	-	-	-	-
		U023A	-	-	-	○
		U1104	-	-	-	○
	Steering Sensor	-	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-	-
		U0100	-	-	-	-
		U0124	-	-	-	-
		U0126	-	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-	○
		U0126	-	-	-	○
		U0129	-	-	-	○
		U0142	-	○	-	○
	Television Camera Assembly	U0100	-	-	-	○
		U0126	-	-	-	○
		U0129	-	-	-	○
		U0131	-	-	-	○
		U0140	-	○	-	○
		U0163	○	-	-	○
		U1110	-	-	○	○
	Network Gateway ECU*2	U0104	-	-	-	-
		U0233	-	-	-	-
		U023A	-	-	-	-
		U0265	-	-	-	-
		U1002	-	-	-	-
Sub Bus 2	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	-	-	-	○
		U0126	-	-	-	○
		U0129	-	-	-	○
		U0142	-	○	-	○
	Lane Departure Warning Camera*1	U0101	-	-	-	○
		U0123	-	-	-	○
		U0129	-	-	-	○
		U0142	-	○	-	○
		U0155	-	-	-	○
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-	-
		U0200	-	-	-	-
		U0208	-	-	-	-
		U0230	-	-	-	-
		U1002	-	-	-	-
	Multiplex Network Door ECU	U0101	-	○	-	-
		U0122	-	○	-	-
		U0142	-	○	-	-
		U0155	-	○	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-	-

for RHD
-			Trouble Mode (Open in Both CAN Branch Lines)
-			V Bus
Output ECU		Output DTC	Power Steering ECU Communication Stop Mode Click here	4WD Control ECU Communication Stop Mode Click here	Certification ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	○	-	-
		U0142	-	-	-
		U0155	-	-	-
V Bus	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Navigation Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	○
		U0151	-	-	-
		U0155	-	-	-
		U023A	-	-	-
		U0327	-	-	○
		U1126	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	ECM (Radar cruise function)	U0100	-	-	-
		U0122	-	-	-
		U0123	-	-	-
		U0126	-	-	-
		U1104	-	-	-
	Power Steering ECU Assembly	U0100	○	-	-
	Power Steering ECU Assembly	U0129	○	-	-
	4WD ECU Assembly*1	U0100	-	○	-
		U0126	-	○	-
		U0129	-	○	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	○
		U0142	-	-	○
		U0155	-	-	○
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	○
		U0140	-	-	○
		U0155	-	-	○
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	○
V Bus	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	○	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	-	-	-
		U1104	-	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Television Camera Assembly	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0131	○	-	-
		U0140	-	-	-
		U0163	-	-	-
		U1110	-	-	-
	Network Gateway ECU*2	U0104	-	-	-
		U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Lane Departure Warning Camera*1	U0101	-	-	-
		U0123	-	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0155	-	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	-	-	-
		U0122	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
Sub Bus 1	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
Sub Bus 1	Position Control ECU and Switch Assembly	-	-	-	-

for RHD
-			Trouble Mode (Open in Both CAN Branch Lines)
-			V Bus
Output ECU		Output DTC	Steering Angle Sensor Communication Stop Mode Click here	Brake Actuator (Skid Control ECU) Communication Stop Mode Click here	DLC3
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	○	-
		U0142	-	-	-
	Navigation Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	-	-	-
		U0327	-	-	-
		U1126	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
V Bus	ECM (Radar cruise function)	U0100	-	-	-
		U0122	-	○	-
		U0123	-	-	-
		U0126	○	-	-
		U1104	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	○	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	-	-	-
		U1104	-	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	○	-
		U0100	-	○	-
		U0124	-	○	-
		U0126	○	○	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-
		U0126	○	-	-
		U0129	-	○	-
		U0142	-	-	-
	Television Camera Assembly	U0100	-	-	-
		U0126	○	-	-
		U0129	-	○	-
		U0131	-	-	-
		U0140	-	-	-
		U0163	-	-	-
		U1110	-	-	-
	Network Gateway ECU*2	U0104	-	-	-
		U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
Sub Bus 2	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	-	-	-
		U0126	○	-	-
		U0129	-	○	-
		U0142	-	-	-
	Lane Departure Warning Camera*1	U0101	-	-	-
		U0123	-	-	-
		U0129	-	○	-
		U0142	-	-	-
		U0155	-	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	-	-	-
		U0122	-	○	-
		U0142	-	-	-
		U0155	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
▲: DTC is unlikely to be output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (Open in One CAN Main Bus Line)
-			V Bus
Output ECU		Output DTC	ECM Communication Stop Mode Click here	No. 3 CAN Junction Connector to No. 4 CAN Junction Connector	Combination Meter ECU Communication Stop Mode Click here Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	X	▲	▲
		U0131	▲	X	▲
		U0142	▲	▲	▲
		U0155	▲	X	X
	Headlight Leveling ECU Assembly	U0100	X	▲	▲
		U0129	▲	X	▲
		U0142	▲	▲	▲
	Navigation Receiver Assembly*1	U0100	X	X	▲
		U0140	▲	X	▲
		U0155	▲	▲	X
	Radio and Display Receiver Assembly*1	U0100	X	X	▲
		U0140	▲	X	▲
		U0155	▲	▲	X
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	X	▲	▲
		U0101	X	▲	▲
		U0120	▲	▲	▲
		U0151	▲	▲	▲
		U0155	▲	X	X
		U023A	▲	▲	▲
		U0327	▲	▲	▲
		U1126	▲	▲	▲
	Clearance Warning ECU Assembly	U0101	▲	▲	▲
	Clearance Warning ECU Assembly	U0155	▲	X	X
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	ECM (Radar cruise function)	U0100	X	▲	▲
		U0122	▲	X	▲
		U0123	▲	▲	▲
		U0126	▲	X	▲
		U1104	▲	▲	▲
	Power Steering ECU Assembly	U0100	X	X	▲
	Power Steering ECU Assembly	U0129	▲	▲	▲
	4WD ECU Assembly*1	U0100	X	▲	▲
		U0126	▲	X	▲
		U0129	▲	X	▲
V Bus	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	X	▲	▲
		U0142	▲	▲	▲
		U0155	▲	X	X
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	X	▲	▲
		U0140	▲	▲	▲
		U0155	▲	X	X
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	X	▲	▲
	Combination Meter Assembly	U0100	X	X	X
		U0129	▲	▲	X
		U0131	▲	▲	X
		U0142	▲	X	X
		U0151	▲	X	X
		U0163	▲	▲	X
		U0182	▲	X	X
		U023A	▲	X	X
		U1104	▲	X	X
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	X	▲
		U0100	X	X	▲
		U0124	▲	X	▲
		U0126	▲	-	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	X	▲	▲
		U0126	▲	X	▲
		U0129	▲	X	▲
		U0142	▲	▲	▲
	Television Camera Assembly	U0100	X	-	▲
		U0126	▲	X	▲
		U0129	▲	X	▲
		U0131	▲	X	▲
		U0140	▲	▲	▲
		U0163	▲	X	▲
		U1110	▲	▲	▲
	Network Gateway ECU*2	U0104	▲	▲	▲
		U0233	▲	▲	▲
		U023A	▲	▲	▲
		U0265	▲	▲	▲
		U1002	▲	▲	▲
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	▲	▲	▲
		U0126	▲	X	▲
		U0129	▲	X	▲
		U0142	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	X	▲	▲
		U0123	▲	▲	▲
		U0129	▲	X	▲
		U0142	▲	▲	▲
		U0155	▲	X	X
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲
		U0200	▲	▲	▲
		U0208	▲	▲	▲
		U0230	▲	▲	▲
		U1002	▲	▲	▲
	Multiplex Network Door ECU	U0101	X	▲	▲
		U0122	▲	X	▲
		U0142	▲	▲	▲
		U0155	▲	X	X
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

X: DTC is likely to be output.
▲: DTC is unlikely to be output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (Open in Both CAN Main Bus Lines)
-			V Bus
Output ECU		Output DTC	ECM Communication Stop Mode Click here	No. 3 CAN Junction Connector to No. 4 CAN Junction Connector	Combination Meter ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
V Bus	Air Conditioning Amplifier Assembly	U0100	○	-	-
		U0131	-	○	-
		U0142	-	-	-
		U0155	-	○	○
	Headlight Leveling ECU Assembly	U0100	○	-	-
		U0129	-	○	-
		U0142	-	-	-
	Navigation Receiver Assembly*1	U0100	○	○	-
		U0140	-	○	-
		U0155	-	-	○
	Radio and Display Receiver Assembly*1	U0100	○	○	-
		U0140	-	○	-
		U0155	-	-	○
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	○	-	-
		U0101	○	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	○	○
		U023A	-	-	-
		U0327	-	-	-
		U1126	-	-	-
	Clearance Warning ECU Assembly	U0101	○	-	-
	Clearance Warning ECU Assembly	U0155	-	○	○
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	ECM (Radar cruise function)	U0100	○	-	-
		U0122	-	○	-
		U0123	-	-	-
		U0126	-	○	-
		U1104	-	-	-
	Power Steering ECU Assembly	U0100	○	○	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	○	-	-
		U0126	-	○	-
		U0129	-	○	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	○	-	-
		U0142	-	-	-
		U0155	-	○	○
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	○	-	-
		U0140	-	-	-
		U0155	-	○	○
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	○	-	-
V Bus	Combination Meter Assembly	U0100	○	○	○
		U0129	-	-	○
		U0131	-	-	○
		U0142	-	○	○
		U0151	-	○	○
		U0163	-	-	○
		U0182	-	○	○
		U023A	-	○	○
		U1104	-	○	○
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	○	-
		U0100	○	○	-
		U0124	-	○	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	○	-	-
		U0126	-	○	-
		U0129	-	○	-
		U0142	-	-	-
	Television Camera Assembly	U0100	○	-	-
		U0126	-	○	-
		U0129	-	○	-
		U0131	-	○	-
		U0140	-	-	-
		U0163	-	○	-
		U1110	-	-	-
	Network Gateway ECU*2	U0104	-	-	-
		U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	-	-	-
		U0126	-	○	-
		U0129	-	○	-
		U0142	-	-	-
	Lane Departure Warning Camera*1	U0101	○	-	-
		U0123	-	-	-
		U0129	-	○	-
		U0142	-	-	-
		U0155	-	○	○
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	○	-	-
		U0122	-	○	-
		U0142	-	-	-
		U0155	-	○	○
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
Sub Bus 1	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
Sub Bus 1	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (CAN Bus Lines Short Circuit or Short to GND)
-			V Bus
Output ECU		Output DTC	CANH to CANL	CANH to Ground Short	CANL to Ground Short
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	○	○	○
		U0131	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Headlight Leveling ECU Assembly	U0100	○	○	○
		U0129	○	○	○
		U0142	○	○	○
	Navigation Receiver Assembly*1	U0100	○	○	○
		U0140	○	○	○
		U0155	○	○	○
	Radio and Display Receiver Assembly*1	U0100	○	○	○
		U0140	○	○	○
		U0155	○	○	○
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	○	○	○
		U0101	○	○	○
		U0120	○	○	○
		U0151	○	○	○
		U0155	○	○	○
		U023A	○	○	○
		U0327	○	○	○
		U1126	○	○	○
	Clearance Warning ECU Assembly	U0101	○	○	○
	Clearance Warning ECU Assembly	U0155	○	○	○
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
V Bus	ECM (Radar cruise function)	U0100	○	○	○
		U0122	○	○	○
		U0123	○	○	○
		U0126	○	○	○
		U1104	○	○	○
	Power Steering ECU Assembly	U0100	○	○	○
	Power Steering ECU Assembly	U0129	○	○	○
	4WD ECU Assembly*1	U0100	○	○	○
		U0126	○	○	○
		U0129	○	○	○
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	○	○	○
		U0140	○	○	○
		U0155	○	○	○
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	○	○	○
	Combination Meter Assembly	U0100	○	○	○
		U0129	○	○	○
		U0131	○	○	○
		U0142	○	○	○
		U0151	○	○	○
		U0163	○	○	○
		U0182	○	○	○
		U023A	○	○	○
		U1104	○	○	○
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	○	○	○
		U0100	○	○	○
		U0124	○	○	○
		U0126	○	○	○
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0142	○	○	○
	Television Camera Assembly	U0100	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0131	○	○	○
		U0140	○	○	○
		U0163	○	○	○
		U1110	○	○	○
	Network Gateway ECU*2	U0104	-	-	-
		U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
Sub Bus 2	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0142	○	○	○
	Lane Departure Warning Camera*1	U0101	○	○	○
		U0123	○	○	○
		U0129	○	○	○
		U0142	○	○	○
		U0155	○	○	○
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	○	○	○
		U0122	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

DTC COMBINATION TABLE (OPEN IN CAN BRANCH OF SUB BUS 1, PAST COMMUNICATION ERROR)

Regarding a past communication error of an ECU and sensor connected to sub bus 1 (in this case, normal is displayed when performing the CAN bus check, but communication DTCs are output), determine the part that had a malfunction based on DTCs output from the main body ECU (multiplex network body ECU).

Tech Tips

As gateway function equipped ECUs (sub bus monitor ECUs) monitor signals from all ECUs that are connected to sub buses, gateway function equipped ECUs can detect ECUs with a communication stop more accurately.
DTCs output from ECUs other than the main body ECU (multiplex network body ECU) (gateway function equipped ECU) are shown only as a reference.
Regarding a communication stop that is currently occurring in sub bus 1, the malfunctioning part can be confirmed easily by performing the CAN bus check using the GTS.
If an open occurs in just one of the lines of a CAN branch, DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.

for LHD
-			Trouble Mode (Open in One CAN Branch Line)
-			Sub Bus 1
Output ECU		Output DTC	Outer Mirror Control ECU Assembly (for Driver Side) Click here	Outer Mirror Control ECU Assembly (for Front Passenger Side) Click here	Position Control ECU and Switch Assembly Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲
		U0101	▲	▲	▲
		U0120	▲	▲	▲
		U0151	▲	▲	▲
		U0155	▲	▲	▲
		U023A	▲	▲	▲
		U0327	▲	▲	▲
		U1126	▲	▲	▲
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	▲	▲
V Bus	4WD ECU Assembly*1	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲
	Combination Meter Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0151	▲	▲	▲
		U0163	▲	▲	▲
		U0182	▲	▲	▲
		U023A	▲	▲	▲
		U1104	▲	▲	▲
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	▲	▲
		U0100	▲	▲	▲
		U0124	▲	▲	▲
		U0126	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Television Camera Assembly	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0140	▲	▲	▲
		U0163	▲	▲	▲
	Network Gateway ECU*2	U0233	▲	▲	▲
		U023A	▲	▲	▲
		U0265	▲	▲	▲
		U1002	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	▲	▲	▲
		U0123	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	X	▲
		U0200	X	▲	▲
		U0208	▲	▲	X
		U0230	▲	▲	▲
		U1002	▲	▲	▲
Sub Bus 1	Multiplex Network Door ECU	U0101	▲	▲	▲
		U0122	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	X	▲	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	X	▲
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

X: DTC is likely to be output.
▲: DTC is unlikely to be output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for LHD
-			Trouble Mode (Open in Both CAN Branch Lines)
-			Sub Bus 1
Output ECU		Output DTC	Outer Mirror Control ECU Assembly (for Driver Side) Click here	Outer Mirror Control ECU Assembly (for Front Passenger Side) Click here	Position Control ECU and Switch Assembly Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
V Bus	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	-	-	-
		U0327	-	-	-
		U1126	-	-	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	-	-	-
		U1104	-	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Television Camera Assembly	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0163	-	-	-
Sub Bus 2	Network Gateway ECU*2	U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Lane Departure Warning Camera*1	U0101	-	-	-
		U0123	-	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0155	-	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	○	-
		U0200	○	-	-
		U0208	-	-	○
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	-	-	-
		U0122	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	○	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	○	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for LHD
-			Trouble Mode (Open in One CAN Main Bus Line)
-			Sub Bus 1
Output ECU		Output DTC	Main Body ECU (Multiplex Network Body ECU) Click here	No. 5 CAN Junction Connector to No. 6 CAN Junction Connector	Multiplex Network Door ECU Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
V Bus	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲
		U0101	▲	▲	▲
		U0120	▲	▲	▲
		U0151	▲	▲	▲
		U0155	▲	▲	▲
		U023A	▲	▲	▲
		U0327	▲	▲	▲
		U1126	▲	▲	▲
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	▲	▲
	4WD ECU Assembly*1	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲
V Bus	Combination Meter Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0151	▲	▲	▲
		U0163	▲	▲	▲
		U0182	▲	▲	▲
		U023A	▲	▲	▲
		U1104	▲	▲	▲
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	▲	▲
		U0100	▲	▲	▲
		U0124	▲	▲	▲
		U0126	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Television Camera Assembly	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0140	▲	▲	▲
		U0163	▲	▲	▲
	Network Gateway ECU*2	U0233	▲	▲	▲
		U023A	▲	▲	▲
		U0265	▲	▲	▲
		U1002	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	▲	▲	▲
		U0123	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	X	▲	▲
		U0200	X	X	▲
		U0208	X	X	▲
		U0230	X	X	X
		U1002	X	▲	▲
	Multiplex Network Door ECU	U0101	X	X	X
		U0122	X	X	X
		U0142	X	X	X
		U0155	X	X	X
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	X	X	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	X	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

X: DTC is likely to be output.
▲: DTC is unlikely to be output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for LHD
-			Trouble Mode (Open in Both CAN Main Bus Lines)
-			Sub Bus 1
Output ECU		Output DTC	Main Body ECU (Multiplex Network Body ECU) Click here	No. 5 CAN Junction Connector to No. 6 CAN Junction Connector	Multiplex Network Door ECU Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	-	-	-
		U0327	-	-	-
		U1126	-	-	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
V Bus	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	-	-	-
		U1104	-	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Television Camera Assembly	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0163	-	-	-
	Network Gateway ECU*2	U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Lane Departure Warning Camera*1	U0101	-	-	-
		U0123	-	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0155	-	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	○	-	-
		U0200	○	○	-
		U0208	○	○	-
		U0230	○	○	○
		U1002	○	-	-
	Multiplex Network Door ECU	U0101	○	○	○
		U0122	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	○	○	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	○	○	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for LHD
-			Trouble Mode (CAN Bus Lines Short Circuit or Short to GND)
-			Sub Bus 1
Output ECU		Output DTC	CANH to CANL	CANH to Ground Short	CANL to Ground Short
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	-	-	-
		U0327	-	-	-
		U1126	-	-	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
V Bus	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	-	-	-
		U1104	-	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Television Camera Assembly	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0163	-	-	-
	Network Gateway ECU*2	U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Lane Departure Warning Camera*1	U0101	-	-	-
		U0123	-	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0155	-	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	○	○	○
		U0200	○	○	○
		U0208	○	○	○
		U0230	○	○	○
		U1002	○	○	○
	Multiplex Network Door ECU	U0101	○	○	○
		U0122	○	○	○
		U0142	○	○	○
		U0155	○	○	○
Sub Bus 1	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	○	○	○
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	○	○	○
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (Open in One CAN Branch Line)
-			Sub Bus 1
Output ECU		Output DTC	Outer Mirror Control ECU Assembly (for Front Passenger Side) Click here	Outer Mirror Control ECU Assembly (for Driver Side) Click here	Position Control ECU and Switch Assembly Click here Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Navigation Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
V Bus	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲
		U0101	▲	▲	▲
		U0120	▲	▲	▲
		U0151	▲	▲	▲
		U0155	▲	▲	▲
		U023A	▲	▲	▲
		U0327	▲	▲	▲
		U1126	▲	▲	▲
	Clearance Warning ECU Assembly	U0101	▲	▲	▲
	Clearance Warning ECU Assembly	U0155	▲	▲	▲
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	ECM (Radar cruise function)	U0100	▲	▲	▲
		U0122	▲	▲	▲
		U0123	▲	▲	▲
		U0126	▲	▲	▲
		U1104	▲	▲	▲
	Power Steering ECU Assembly	U0100	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	▲	▲
	4WD ECU Assembly*1	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲
	Combination Meter Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0151	▲	▲	▲
		U0163	▲	▲	▲
		U0182	▲	▲	▲
		U023A	▲	▲	▲
		U1104	▲	▲	▲
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	▲	▲
		U0100	▲	▲	▲
		U0124	▲	▲	▲
		U0126	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Television Camera Assembly	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0140	▲	▲	▲
		U0163	▲	▲	▲
		U1110	▲	▲	▲
	Network Gateway ECU*2	U0104	▲	▲	▲
		U0233	▲	▲	▲
		U023A	▲	▲	▲
		U0265	▲	▲	▲
		U1002	▲	▲	▲
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	▲	▲	▲
		U0123	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	X	▲
		U0200	X	▲	▲
		U0208	▲	▲	X
		U0230	▲	▲	▲
		U1002	▲	▲	▲
	Multiplex Network Door ECU	U0101	▲	▲	▲
		U0122	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	X	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	X	▲
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

X: DTC is likely to be output.
▲: DTC is unlikely to be output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (Open in Both CAN Branch Lines)
-			Sub Bus 1
Output ECU		Output DTC	Outer Mirror Control ECU Assembly (for Front Passenger Side) Click here	Outer Mirror Control ECU Assembly (for Driver Side) Click here Click here	Position Control ECU and Switch Assembly Click here Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Navigation Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	-	-	-
		U0327	-	-	-
		U1126	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	ECM (Radar cruise function)	U0100	-	-	-
		U0122	-	-	-
		U0123	-	-	-
		U0126	-	-	-
		U1104	-	-	-
V Bus	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	-	-	-
		U1104	-	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Television Camera Assembly	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0163	-	-	-
		U1110	-	-	-
	Network Gateway ECU*2	U0104	-	-	-
		U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
Sub Bus 2	Lane Departure Warning Camera*1	U0101	-	-	-
		U0123	-	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0155	-	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	○	-
		U0200	○	-	-
		U0208	-	-	○
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	-	-	-
		U0122	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	○	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	○	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (Open in One CAN Main Bus Line)
-			Sub Bus 1
Output ECU		Output DTC	Main Body ECU (Multiplex Network Body ECU) Click here	No. 5 CAN Junction Connector to No. 6 CAN Junction Connector	Multiplex Network Door ECU Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
V Bus	Headlight Leveling ECU Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Navigation Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲
		U0101	▲	▲	▲
		U0120	▲	▲	▲
		U0151	▲	▲	▲
		U0155	▲	▲	▲
		U023A	▲	▲	▲
		U0327	▲	▲	▲
		U1126	▲	▲	▲
	Clearance Warning ECU Assembly	U0101	▲	▲	▲
	Clearance Warning ECU Assembly	U0155	▲	▲	▲
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	ECM (Radar cruise function)	U0100	▲	▲	▲
		U0122	▲	▲	▲
		U0123	▲	▲	▲
		U0126	▲	▲	▲
		U1104	▲	▲	▲
	Power Steering ECU Assembly	U0100	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	▲	▲
	4WD ECU Assembly*1	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲
V Bus	Combination Meter Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0151	▲	▲	▲
		U0163	▲	▲	▲
		U0182	▲	▲	▲
		U023A	▲	▲	▲
		U1104	▲	▲	▲
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	▲	▲
		U0100	▲	▲	▲
		U0124	▲	▲	▲
		U0126	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Television Camera Assembly	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0140	▲	▲	▲
		U0163	▲	▲	▲
		U1110	▲	▲	▲
	Network Gateway ECU*2	U0104	▲	▲	▲
		U0233	▲	▲	▲
		U023A	▲	▲	▲
		U0265	▲	▲	▲
		U1002	▲	▲	▲
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	▲	▲	▲
		U0123	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	X	▲	▲
		U0200	X	X	▲
		U0208	X	▲	▲
		U0230	X	X	X
		U1002	X	▲	▲
	Multiplex Network Door ECU	U0101	X	X	X
		U0122	X	X	X
		U0142	X	X	X
		U0155	X	X	X
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	X	X	▲
Sub Bus 1	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	X	▲	▲
Sub Bus 1	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

X: DTC is likely to be output.
▲: DTC is unlikely to be output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (Open in Both CAN Main Bus Lines)
-			Sub Bus 1
Output ECU		Output DTC	Main Body ECU (Multiplex Network Body ECU) Click here	No. 5 CAN Junction Connector to No. 6 CAN Junction Connector	Multiplex Network Door ECU Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Navigation Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
V Bus	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	-	-	-
		U0327	-	-	-
		U1126	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	ECM (Radar cruise function)	U0100	-	-	-
		U0122	-	-	-
		U0123	-	-	-
		U0126	-	-	-
		U1104	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	-	-	-
		U1104	-	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Television Camera Assembly	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0163	-	-	-
		U1110	-	-	-
	Network Gateway ECU*2	U0104	-	-	-
		U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Lane Departure Warning Camera*1	U0101	-	-	-
		U0123	-	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0155	-	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	○	-	-
		U0200	○	○	-
		U0208	○	-	-
		U0230	○	○	○
		U1002	○	-	-
	Multiplex Network Door ECU	U0101	○	○	○
		U0122	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	○	○	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	○	-	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (CAN Bus Lines Short Circuit or Short to GND)
-			Sub Bus 1
Output ECU		Output DTC	CANH to CANL	CANH to Ground Short	CANL to Ground Short
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Navigation Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	-	-	-
		U0327	-	-	-
		U1126	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	ECM (Radar cruise function)	U0100	-	-	-
		U0122	-	-	-
		U0123	-	-	-
		U0126	-	-	-
		U1104	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
V Bus	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	-	-	-
		U1104	-	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Television Camera Assembly	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0163	-	-	-
		U1110	-	-	-
	Network Gateway ECU*2	U0104	-	-	-
		U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Lane Departure Warning Camera*1	U0101	-	-	-
		U0123	-	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0155	-	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	○	○	○
		U0200	○	○	○
		U0208	○	○	○
		U0230	○	○	○
		U1002	○	○	○
	Multiplex Network Door ECU	U0101	○	○	○
		U0122	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	○	○	○
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	○	○	○
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

DTC COMBINATION TABLE (OPEN IN CAN BRANCH OF SUB BUS 2, PAST COMMUNICATION ERROR)

Regarding a past communication error of an ECU and sensor connected to sub bus 2 (in this case, normal is displayed when performing the CAN bus check, but communication DTCs are output), determine the part that had a malfunction based on DTCs output from the network gateway ECU.

Tech Tips

As gateway function equipped ECUs (sub bus monitor ECUs) monitor signals from all ECUs that are connected to sub buses, gateway function equipped ECUs can detect ECUs with a communication stop more accurately.
DTCs output from ECUs other than the network gateway ECU (gateway function equipped ECU) are shown only as a reference.
Regarding a communication stop that is currently occurring in sub bus 2, the malfunctioning part can be confirmed easily by performing the CAN bus check using the GTS.
If an open occurs in just one of the lines of a CAN branch, DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.

for LHD
-			Trouble Mode (Open in One CAN Branch Line)
-			Sub Bus 2
Output ECU		Output DTC	Blind Spot Monitor Sensor LH Click here	Television Camera Assembly Click here	Lane Departure Warning Camera Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲
		U0101	▲	▲	▲
		U0120	▲	▲	▲
		U0151	▲	▲	▲
		U0155	▲	▲	▲
		U023A	▲	▲	X
		U0327	▲	▲	▲
		U1126	▲	▲	X
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	▲	▲
	4WD ECU Assembly*1	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
V Bus	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲
	Combination Meter Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0151	▲	▲	▲
		U0163	▲	▲	▲
		U0182	▲	▲	▲
		U023A	▲	▲	X
		U1104	▲	▲	▲
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	▲	▲
		U0100	▲	▲	▲
		U0124	▲	▲	▲
		U0126	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	X	▲	▲
		U0126	X	▲	▲
		U0129	X	▲	▲
		U0142	X	▲	▲
	Television Camera Assembly	U0100	▲	X	▲
		U0126	▲	X	▲
		U0129	▲	X	▲
		U0131	▲	X	▲
		U0140	▲	X	▲
		U0163	▲	X	▲
	Network Gateway ECU*2	U0233	X	▲	▲
		U023A	▲	▲	X
		U0265	▲	X	▲
		U1002	▲	▲	▲
	Lane Departure Warning Camera*1	U0101	▲	▲	X
		U0123	▲	▲	X
		U0129	▲	▲	X
		U0142	▲	▲	X
		U0155	▲	▲	X
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲
		U0200	▲	▲	▲
		U0208	▲	▲	▲
		U0230	▲	▲	▲
		U1002	▲	▲	▲
	Multiplex Network Door ECU	U0101	▲	▲	▲
		U0122	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲
Sub Bus 1	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲
Sub Bus 1	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

X: DTC is likely to be output.
▲: DTC is unlikely to be output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for LHD
-			Trouble Mode (Open in Both CAN Branch Lines)
-			Sub Bus 2
Output ECU		Output DTC	Blind Spot Monitor Sensor LH Click here	Television Camera Assembly Click here	Lane Departure Warning Camera Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	-	-	○
		U0327	-	-	-
		U1126	-	-	○
	Network Gateway ECU*2	-	-	-	-
V Bus	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	-	-	○
		U1104	-	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	○	-	-
		U0126	○	-	-
		U0129	○	-	-
		U0142	○	-	-
	Television Camera Assembly	U0100	-	○	-
		U0126	-	○	-
		U0129	-	○	-
		U0131	-	○	-
		U0140	-	○	-
		U0163	-	○	-
	Network Gateway ECU*2	U0233	-	-	-
		U023A	-	-	-
		U0265	-	-	-
		U1002	-	-	-
	Lane Departure Warning Camera*1	U0101	-	-	○
		U0123	-	-	○
		U0129	-	-	○
		U0142	-	-	○
		U0155	-	-	○
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	-	-	-
		U0122	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for LHD
-			Trouble Mode (Open in One CAN Main Bus Line)
-			Sub Bus 2
Output ECU		Output DTC	Network Gateway ECU Click here	No. 1 CAN Junction Connector to No. 2 CAN Junction Connector	No. 2 CAN Junction Connector to CAN Junction Terminal
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
V Bus	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲
		U0101	▲	▲	▲
		U0120	▲	▲	▲
		U0151	▲	▲	▲
		U0155	▲	▲	▲
		U023A	X	▲	▲
		U0327	▲	▲	▲
		U1126	X	X	▲
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	▲	▲
	4WD ECU Assembly*1	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲
	Combination Meter Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0151	▲	▲	▲
		U0163	▲	▲	▲
		U0182	▲	▲	▲
		U023A	X	▲	▲
		U1104	X	▲	▲
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	▲	▲
		U0100	▲	▲	▲
		U0124	▲	▲	▲
		U0126	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	X	X	▲
		U0126	X	X	▲
		U0129	X	X	▲
		U0142	X	X	▲
Sub Bus 2	Television Camera Assembly	U0100	X	X	▲
		U0126	X	X	▲
		U0129	X	X	▲
		U0131	X	X	▲
		U0140	X	X	▲
		U0163	X	X	▲
	Network Gateway ECU*2	U0233	X	X	▲
		U023A	X	▲	▲
		U0265	X	X	▲
		U1002	X	▲	▲
	Lane Departure Warning Camera*1	U0101	X	▲	▲
		U0123	X	▲	▲
		U0129	X	▲	▲
		U0142	X	▲	▲
		U0155	X	▲	▲
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲
		U0200	▲	▲	▲
		U0208	▲	▲	▲
		U0230	▲	▲	▲
		U1002	▲	▲	▲
	Multiplex Network Door ECU	U0101	▲	▲	▲
		U0122	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

X: DTC is likely to be output.
▲: DTC is unlikely to be output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for LHD
-			Trouble Mode (Open in Both CAN Main Bus Lines)
-			Sub Bus 2
Output ECU		Output DTC	Network Gateway ECU Click here	No. 1 CAN Junction Connector to No. 2 CAN Junction Connector	No. 2 CAN Junction Connector to CAN Junction Terminal
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	○	-	-
		U0327	-	-	-
		U1126	○	-	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
V Bus	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	○	-	-
		U1104	○	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	○	○	-
		U0126	○	○	-
		U0129	○	○	-
		U0142	○	○	-
	Television Camera Assembly	U0100	○	○	-
		U0126	○	○	-
		U0129	○	○	-
		U0131	○	○	-
		U0140	○	○	-
		U0163	○	○	-
	Network Gateway ECU*2	U0233	○	○	-
		U023A	○	-	-
		U0265	○	○	-
		U1002	○	-	-
	Lane Departure Warning Camera*1	U0101	○	-	-
		U0123	○	-	-
		U0129	○	-	-
		U0142	○	-	-
		U0155	○	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	-	-	-
		U0122	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for LHD
-			Trouble Mode (CAN Bus Lines Short Circuit or Short to GND)
-			Sub Bus 2
Output ECU		Output DTC	CANH to CANL	CANH to Ground Short	CANL to Ground Short
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	○	○	○
		U0327	-	-	-
		U1126	○	○	○
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
V Bus	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	○	○	○
		U1104	○	○	○
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0142	○	○	○
	Television Camera Assembly	U0100	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0131	○	○	○
		U0140	○	○	○
		U0163	○	○	○
	Network Gateway ECU*2	U0233	○	○	○
		U023A	○	○	○
		U0265	○	○	○
		U1002	○	○	○
	Lane Departure Warning Camera*1	U0101	○	○	○
		U0123	○	○	○
		U0129	○	○	○
		U0142	○	○	○
		U0155	○	○	○
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	-	-	-
		U0122	-	-	-
		U0142	-	-	-
		U0155	-	-	-
Sub Bus 1	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (Open in One CAN Branch Line)
-			Sub Bus 2
Output ECU		Output DTC	Blind Spot Monitor Sensor LH Click here	Television Camera Assembly Click here	Lane Departure Warning Camera Click here	Driving Support ECU Assembly Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲	▲
		U0131	▲	▲	▲	▲
		U0142	▲	▲	▲	▲
		U0155	▲	▲	▲	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	▲	▲
		U0129	▲	▲	▲	▲
		U0142	▲	▲	▲	▲
	Navigation Receiver Assembly*1	U0100	▲	▲	▲	▲
		U0140	▲	▲	▲	▲
		U0155	▲	▲	▲	▲
	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲	▲
		U0140	▲	▲	▲	▲
		U0155	▲	▲	▲	▲
V Bus	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲	▲
		U0101	▲	▲	▲	▲
		U0120	▲	▲	▲	▲
		U0151	▲	▲	▲	▲
		U0155	▲	▲	▲	▲
		U023A	▲	▲	X	▲
		U0327	▲	▲	▲	▲
		U1126	▲	X	▲	▲
	Clearance Warning ECU Assembly	U0101	▲	▲	▲	▲
	Clearance Warning ECU Assembly	U0155	▲	▲	▲	▲
	Network Gateway ECU*2	-	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-	-
	ECM (Radar cruise function)	U0100	▲	▲	▲	▲
		U0122	▲	▲	▲	▲
		U0123	▲	▲	▲	▲
		U0126	▲	▲	▲	▲
		U1104	▲	▲	▲	X
	Power Steering ECU Assembly	U0100	▲	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	▲	▲	▲
	4WD ECU Assembly*1	U0100	▲	▲	▲	▲
		U0126	▲	▲	▲	▲
		U0129	▲	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲	▲
		U0142	▲	▲	▲	▲
		U0155	▲	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲	▲
		U0140	▲	▲	▲	▲
		U0155	▲	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲	▲
	Combination Meter Assembly	U0100	▲	▲	▲	▲
		U0129	▲	▲	▲	▲
		U0131	▲	▲	▲	▲
		U0142	▲	▲	▲	▲
		U0151	▲	▲	▲	▲
		U0163	▲	▲	▲	▲
		U0182	▲	▲	▲	▲
		U023A	▲	▲	X	▲
		U1104	▲	▲	▲	X
	Steering Sensor	-	-	-	-	-
V Bus	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	▲	▲	▲
		U0100	▲	▲	▲	▲
		U0124	▲	▲	▲	▲
		U0126	▲	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	X	▲	▲	▲
		U0126	X	▲	▲	▲
		U0129	X	▲	▲	▲
		U0142	X	▲	▲	▲
	Television Camera Assembly	U0100	▲	X	▲	▲
		U0126	▲	X	▲	▲
		U0129	▲	X	▲	▲
		U0131	▲	X	▲	▲
		U0140	▲	X	▲	▲
		U0163	▲	X	▲	▲
		U1110	▲	X	▲	▲
	Network Gateway ECU*2	U0104	▲	▲	▲	X
		U0233	X	▲	▲	▲
		U023A	▲	▲	X	▲
		U0265	▲	X	▲	▲
		U1002	▲	▲	▲	▲
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	▲	▲	▲	X
		U0126	▲	▲	▲	X
		U0129	▲	▲	▲	X
		U0142	▲	▲	▲	X
	Lane Departure Warning Camera*1	U0101	▲	▲	X	▲
		U0123	▲	▲	X	▲
		U0129	▲	▲	X	▲
		U0142	▲	▲	X	▲
		U0155	▲	▲	X	▲
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲	▲
		U0200	▲	▲	▲	▲
		U0208	▲	▲	▲	▲
		U0230	▲	▲	▲	▲
		U1002	▲	▲	▲	▲
	Multiplex Network Door ECU	U0101	▲	▲	▲	▲
		U0122	▲	▲	▲	▲
		U0142	▲	▲	▲	▲
		U0155	▲	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-	-

Tech Tips

X: DTC is likely to be output.
▲: DTC is unlikely to be output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (Open in Both CAN Branch Lines)
-			Sub Bus 2
Output ECU		Output DTC	Blind Spot Monitor Sensor LH Click here	Television Camera Assembly Click here	Lane Departure Warning Camera Click here	Driving Support ECU Assembly Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0131	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0142	-	-	-	-
	Navigation Receiver Assembly*1	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-	-
		U0101	-	-	-	-
		U0120	-	-	-	-
		U0151	-	-	-	-
		U0155	-	-	-	-
		U023A	-	-	○	-
		U0327	-	-	-	-
		U1126	-	○	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-	-
	Network Gateway ECU*2	-	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-	-
V Bus	ECM (for 2GR-FE)	-	-	-	-	-
	ECM (Radar cruise function)	U0100	-	-	-	-
		U0122	-	-	-	-
		U0123	-	-	-	-
		U0126	-	-	-	-
		U1104	-	-	-	○
	Power Steering ECU Assembly	U0100	-	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-	-
	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0131	-	-	-	-
		U0142	-	-	-	-
		U0151	-	-	-	-
		U0163	-	-	-	-
		U0182	-	-	-	-
		U023A	-	-	○	-
		U1104	-	-	-	○
	Steering Sensor	-	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-	-
		U0100	-	-	-	-
		U0124	-	-	-	-
		U0126	-	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	○	-	-	-
		U0126	○	-	-	-
		U0129	○	-	-	-
		U0142	○	-	-	-
	Television Camera Assembly	U0100	-	○	-	-
		U0126	-	○	-	-
		U0129	-	○	-	-
		U0131	-	○	-	-
		U0140	-	○	-	-
		U0163	-	○	-	-
		U1110	-	○	-	-
Sub Bus 2	Network Gateway ECU*2	U0104	-	-	-	-
		U0233	-	-	-	-
		U023A	-	-	-	-
		U0265	-	-	-	-
		U1002	-	-	-	-
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	-	-	-	○
		U0126	-	-	-	○
		U0129	-	-	-	○
		U0142	-	-	-	○
	Lane Departure Warning Camera*1	U0101	-	-	○	-
		U0123	-	-	○	-
		U0129	-	-	○	-
		U0142	-	-	○	-
		U0155	-	-	○	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-	-
		U0200	-	-	-	-
		U0208	-	-	-	-
		U0230	-	-	-	-
		U1002	-	-	-	-
	Multiplex Network Door ECU	U0101	-	-	-	-
		U0122	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (Open in One CAN Main Bus Line)
-			Sub Bus 2
Output ECU		Output DTC	Network Gateway ECU Click here	No. 1 CAN Junction Connector to No. 2 CAN Junction Connector	No. 2 CAN Junction Connector to CAN Junction Terminal
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Headlight Leveling ECU Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0142	▲	▲	▲
	Navigation Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Radio and Display Receiver Assembly*1	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	▲	▲	▲
		U0101	▲	▲	▲
		U0120	▲	▲	▲
		U0151	▲	▲	▲
		U0155	▲	▲	▲
		U023A	X	▲	▲
		U0327	▲	▲	▲
		U1126	X	X	▲
	Clearance Warning ECU Assembly	U0101	▲	▲	▲
	Clearance Warning ECU Assembly	U0155	▲	▲	▲
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	ECM (Radar cruise function)	U0100	▲	▲	▲
		U0122	▲	▲	▲
		U0123	▲	▲	▲
		U0126	▲	▲	▲
		U1104	▲	▲	▲
	Power Steering ECU Assembly	U0100	▲	▲	▲
	Power Steering ECU Assembly	U0129	▲	▲	▲
	4WD ECU Assembly*1	U0100	▲	▲	▲
		U0126	▲	▲	▲
		U0129	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
V Bus	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	▲	▲	▲
		U0140	▲	▲	▲
		U0155	▲	▲	▲
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	▲	▲	▲
	Combination Meter Assembly	U0100	▲	▲	▲
		U0129	▲	▲	▲
		U0131	▲	▲	▲
		U0142	▲	▲	▲
		U0151	▲	▲	▲
		U0163	▲	▲	▲
		U0182	▲	▲	▲
		U023A	X	▲	▲
		U1104	X	▲	▲
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	▲	▲	▲
		U0100	▲	▲	▲
		U0124	▲	▲	▲
		U0126	▲	▲	▲
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	X	X	▲
		U0126	X	X	▲
		U0129	X	X	▲
		U0142	X	X	▲
	Television Camera Assembly	U0100	X	X	▲
		U0126	X	X	▲
		U0129	X	X	▲
		U0131	X	X	▲
		U0140	X	X	▲
		U0163	X	X	▲
		U1110	X	X	▲
	Network Gateway ECU*2	U0104	X	▲	▲
		U0233	X	X	▲
		U023A	X	▲	▲
		U0265	X	X	▲
		U1002	X	▲	▲
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	X	▲	▲
		U0126	X	▲	▲
		U0129	X	▲	▲
		U0142	X	▲	▲
	Lane Departure Warning Camera*1	U0101	X	▲	▲
		U0123	X	▲	▲
		U0129	X	▲	▲
		U0142	X	▲	▲
		U0155	X	▲	▲
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	▲	▲	▲
		U0200	▲	▲	▲
		U0208	▲	▲	▲
		U0230	▲	▲	▲
		U1002	▲	▲	▲
Sub Bus 1	Multiplex Network Door ECU	U0101	▲	▲	▲
		U0122	▲	▲	▲
		U0142	▲	▲	▲
		U0155	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	▲	▲	▲
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	▲	▲	▲
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

X: DTC is likely to be output.
▲: DTC is unlikely to be output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (Open in Both CAN Main Bus Lines)
-			Sub Bus 2
Output ECU		Output DTC	Network Gateway ECU Click here	No. 1 CAN Junction Connector to No. 2 CAN Junction Connector	No. 2 CAN Junction Connector to CAN Junction Terminal
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Navigation Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
V Bus	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	○	-	-
		U0327	-	-	-
		U1126	○	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	ECM (Radar cruise function)	U0100	-	-	-
		U0122	-	-	-
		U0123	-	-	-
		U0126	-	-	-
		U1104	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	○	-	-
		U1104	○	-	-
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	○	○	-
		U0126	○	○	-
		U0129	○	○	-
		U0142	○	○	-
	Television Camera Assembly	U0100	○	○	-
		U0126	○	○	-
		U0129	○	○	-
		U0131	○	○	-
		U0140	○	○	-
		U0163	○	○	-
		U1110	○	○	-
	Network Gateway ECU*2	U0104	○	-	-
		U0233	○	○	-
		U023A	○	-	-
		U0265	○	○	-
		U1002	○	-	-
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	○	-	-
		U0126	○	-	-
		U0129	○	-	-
		U0142	○	-	-
	Lane Departure Warning Camera*1	U0101	○	-	-
		U0123	○	-	-
		U0129	○	-	-
		U0142	○	-	-
		U0155	○	-	-
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	-	-	-
		U0122	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

for RHD
-			Trouble Mode (CAN Bus Lines Short Circuit or Short to GND)
-			Sub Bus 2
Output ECU		Output DTC	CANH to CANL	CANH to Ground Short	CANL to Ground Short
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Leveling ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Navigation Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	○	○	○
		U0327	-	-	-
		U1126	○	○	○
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	Network Gateway ECU*2	-	-	-	-
	ECM (for 1AR-FE)	-	-	-	-
	ECM (for 2GR-FE)	-	-	-	-
	ECM (Radar cruise function)	U0100	-	-	-
		U0122	-	-	-
		U0123	-	-	-
		U0126	-	-	-
		U1104	○	○	○
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	4WD ECU Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
V Bus	Certification ECU (Smart Key ECU Assembly) (Entry function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
		U023A	○	○	○
		U1104	○	○	○
	Steering Sensor	-	-	-	-
	Skid Control ECU (Brake Actuator Assembly)	U0073	-	-	-
		U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
Sub Bus 2	Blind Spot Monitor Sensor LH	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Television Camera Assembly	U0100	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0131	○	○	○
		U0140	○	○	○
		U0163	○	○	○
		U1110	○	○	○
	Network Gateway ECU*2	U0104	○	○	○
		U0233	○	○	○
		U023A	○	○	○
		U0265	○	○	○
		U1002	○	○	○
	Driving Support ECU Assembly (Pre-crash Safety System)	U0125	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0142	○	○	○
	Lane Departure Warning Camera*1	U0101	○	○	○
		U0123	○	○	○
		U0129	○	○	○
		U0142	○	○	○
		U0155	○	○	○
Sub Bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0230	-	-	-
		U1002	-	-	-
	Multiplex Network Door ECU	U0101	-	-	-
		U0122	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Position Control ECU and Switch Assembly	-	-	-	-

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.

CAN BUS WAVEFORMS

Tech Tips

This waveform is measured between terminals CANH and GND, and terminals CANL and GND of the DLC3. (Use this as a reference for diagnosis of CAN communication lines.)
When malfunctions in multiple ECUs are suspected based on the CAN bus check and DTCs checked using the GTS, check the resistance of the CAN bus using an ohmmeter first. If no problems are found, check the following waveforms.

Click here
If a waveform is not similar to one of the following 3 patterns (Group 1), then an open in a CAN main bus line, an open in a CAN branch line, or a short between a CAN line (CANH or CANL) and ground is suspected (Group 2).
Wiggle the connector and wire harness to check if the waveform changes.

CAN bus waveforms (Group 1)


*a	1 V/DIV.
*b	50 μs/DIV.

Normal waveform


*a	1 V/DIV.
*b	50 μs/DIV.

Open in both of the lines (CANH and CANL) of a CAN branch

Tech Tips

Waveforms (waveforms shown using dotted lines) are not present from an ECU or sensor connected to a CAN branch with an open circuit in both lines. (Waveforms from other ECUs or sensors are normal.)
Because this waveform is similar to a normal waveform, instead of using the waveform, the malfunctioning part can be narrowed down by performing a CAN bus check.


*a	1 V/DIV.
*b	50 μs/DIV.

Short between the CAN bus lines (CANH and CANL)

Tech Tips

Waveforms disappear.
If the malfunction is in an ECU, disconnecting the ECU will change the waveform. If the waveform does not change, a malfunction in the wire harness is suspected.

CAN bus waveforms (reference) (Group 2)

Note

The following CAN bus waveforms can be used only as reference. The actual measured waveform may differ significantly depending on the location of the open or short circuit.


*a	1 V/DIV.
*b	50 μs/DIV.

Open in a CAN branch line (CANH)

Tech Tips

An abnormal waveform is output from an ECU with an open in one of its CAN branch lines. Because this abnormal output interferes with the signals from other ECUs, the output of other ECUs will also appear abnormal.
Narrow down the malfunctioning part by checking DTCs or performing a CAN bus check, or by checking waveform changes when ECUs or sensors are disconnected. The waveform will change to one for an open in both sides of a CAN branch when the ECU or sensor with an open CAN branch line is disconnected.


*a	1 V/DIV.
*b	50 μs/DIV.

Open in a CAN branch line (CANL)

Tech Tips

An abnormal waveform is output from an ECU with an open in one of its CAN branch lines. Because this abnormal output interferes with the signals from other ECUs, the output of other ECUs will also appear abnormal.
Narrow down the malfunctioning part by checking DTCs or performing a CAN bus check, or by checking waveform changes when ECUs or sensors are disconnected. The waveform will change to one for an open in both sides of a CAN branch when the ECU or sensor with an open CAN branch line is disconnected.


*a	1 V/DIV.
*b	50 μs/DIV.

Open in a CAN main bus line (CANH)

Tech Tips

Waveforms of ECUs or sensors that are closer to the DLC3 than the open part are almost normal.
Waveforms of ECUs or sensors that are on the opposite side of the DLC3 from the open part are abnormal.
An open in a CAN main bus line can be confirmed by measuring the resistance between the CANH and CANL terminals of any CAN branch.


*a	1 V/DIV.
*b	50 μs/DIV.

Short between a CAN bus line (CANH) and ground

Tech Tips

Narrow down the shorted part by checking for waveform changes when disconnecting connectors from the CAN junction connectors or when disconnecting ECUs or sensors.
A short to ground in the CANH line can be confirmed by measuring the resistance between CANH and ground using an ohmmeter.


*a	1 V/DIV.
*b	50 μs/DIV.

Short between a CAN bus line (CANL) and ground

Tech Tips

Narrow down the shorted part by checking for waveform changes when disconnecting connectors from the CAN junction connectors or when disconnecting ECUs or sensors.
A short to ground in the CANL line can be confirmed by measuring the resistance between CANL and ground using an ohmmeter.

DATA SENDING/RECEIVING TABLE

Data sending/receiving table

Tech Tips

If Data List items related to sent/received data are not displayed properly, the part for which communication is interrupted can be determined using the table below.

Data content	Data Detected and Sent by	Data Received by (Can be Checked in Data List)	Data Received by (Cannot be Checked in Data List)	Relevant Data List Item [Selected System]
Accelerator position	ECM	Skid control ECU (brake actuator assembly)	Power steering ECU assembly 4WD ECU assembly	Accelerator Position [Engine] Accelerator Opening Angle % [ABS/VSC/TRC]
Engine speed	ECM	Skid control ECU (brake actuator assembly) Power steering ECU assembly Combination meter assembly Certification ECU (smart key ECU assembly)	4WD ECU assembly Main body ECU (multiplex network body ECU) Air conditioning amplifier assembly Airbag sensor assembly Navigation receiver assembly Radio and display receiver assembly	Engine Speed [Engine] Engine Revolutions [ABS/VSC/TRC] Engine Revolution [EMPS] Engine Rpm [Combination Meter] Engine Condition [Power Source Control] Engine Speed [Starting Control]
Engine coolant temperature	ECM	Combination meter assembly 4WD ECU assembly Air conditioning amplifier assembly	Navigation receiver assembly Radio and display receiver assembly	Coolant Temp [Engine] Coolant Temperature [Combination Meter] Engine Coolant Temperature [Four Wheel Drive] Engine Coolant Temp [Air Conditioner]
Vehicle speed	Skid control ECU (brake actuator assembly)	ECM Power steering ECU assembly Combination meter assembly*3 Navigation receiver assembly Radio and display receiver assembly Blind spot monitor sensor LH Television camera assembly	Airbag sensor assembly Driving support ECU assembly	Vehicle Speed [Engine] Vehicle Speed [ABS/VSC/TRC] Meter Vehicle Velocity [EMPS] Vehicle Speed Meter [Combination Meter] Vehicle Speed [Navigation System] Vehicle Speed [Blind Spot Monitor Master] CCS Vehicle Spd [Radar Cruise] Wheel Speed Sensor (4wheel) [IPA/Parking Assist Monitor]
Vehicle speed	Combination meter assembly*3	Certification ECU (smart key ECU assembly) Clearance warning ECU assembly Position control ECU and switch assembly	Main body ECU (multiplex network body ECU) Air conditioning amplifier assembly Multiplex network door ECU Option connector (bus buffer ECU)	Vehicle Speed Meter [Combination Meter] Vehicle Speed Signal [Power Source Control] Vehicle Speed Info [Clearance Sonar] Vehicle Speed [Driver Seat]
Wheel speed	Skid control ECU (brake actuator assembly)	4WD ECU assembly Headlight leveling ECU assembly	ECM Power steering ECU assembly Airbag sensor assembly Blind spot monitor sensor LH Lane departure warning camera Driving support ECU assembly	FR Wheel Speed [ABS/VSC/TRC] FL Wheel Speed [ABS/VSC/TRC] RR Wheel Speed [ABS/VSC/TRC] RL Wheel Speed [ABS/VSC/TRC] FR Wheel Speed [Four Wheel Drive] FL Wheel Speed [Four Wheel Drive] RR Wheel Speed [Four Wheel Drive] RL Wheel Speed [Four Wheel Drive] Front Right Wheel Speed Value [HL AutoLeveling] Front Left Wheel Speed Value [HL AutoLeveling]
Shift position	ECM	Navigation receiver assembly Radio and display receiver assembly Certification ECU (smart key ECU assembly) Clearance warning ECU assembly Blind spot monitor sensor LH Position control ECU and switch assembly	Combination meter assembly*2 Main body ECU (multiplex network body ECU) Airbag sensor assembly Driving support ECU assembly Lane departure warning camera Television camera assembly Multiplex network door ECU Option connector (bus buffer ECU)	Neutral Position SW Signal [Engine] Reverse Signal [Navigation System] Shift P Signal [Power Source Control] Parking Signal [Clearance Sonar] Reverse Signal [Clearance Sonar] Reverse (Only for AT/CVT) [Blind Spot Monitor Master] P Switch [Driver Seat]
Ambient temperature	Air conditioning amplifier assembly	ECM*5 Combination meter assembly 4WD ECU assembly	Navigation receiver assembly Radio and display receiver assembly Driving support ECU assembly Option connector (bus buffer ECU)	Ambient Temp for A/C [Engine] Ambient Temp Sensor [Air Conditioner] Ambient Temperature [Combination Meter] Ambient Temperature [Four Wheel Drive]
Driver door courtesy switch	Main body ECU (multiplex network body ECU)	-	Combination meter assembly*2 Certification ECU (smart key ECU assembly) Navigation receiver assembly Radio and display receiver assembly Option connector (bus buffer ECU)	FL Door Courtesy SW [Main Body] FR Door Courtesy SW [Main Body]
Steering angle sensor	Steering sensor	Skid control ECU (brake actuator assembly) Power steering ECU assembly 4WD ECU assembly Blind spot monitor sensor LH	Navigation receiver assembly Radio and display receiver assembly Airbag sensor assembly Driving support ECU assembly Television camera assembly	Steering Angle Sensor [ABS/VSC/TRC] Steering Angle Velocity [EMPS] Steering Angle Value [Four Wheel Drive] Steering Angle [Blind Spot Monitor Master]
Yaw rate sensor	Airbag sensor assembly	Skid control ECU (brake actuator assembly) 4WD ECU assembly	Driving support ECU assembly Lane departure warning camera	Yaw Rate Sensor [ABS/VSC/TRC] Yaw Rate Value [Four Wheel Drive]
Deceleration Sensor	Airbag sensor assembly	Skid control ECU (brake actuator assembly) 4WD ECU assembly	ECM	Deceleration Sensor [ABS/VSC/TRC] Deceleration Sensor2 [ABS/VSC/TRC] Lateral G [Four Wheel Drive] Forward and Rearward G [Four Wheel Drive]
Ignition switch condition	Main body ECU (multiplex network body ECU)	Position control ECU and switch assembly Multiplex network door ECU	Certification ECU (smart key ECU assembly) Outer mirror control ECU assembly (for driver side) Outer mirror control ECU assembly (for front passenger side) Television camera assembly Option connector (bus buffer ECU)	IG SW [Main Body] Ignition Switch [Driver Seat] IG SW [Back Door]
Driver side buckle switch signal	Airbag sensor assembly	-	Main body ECU (multiplex network body ECU)	Left side Buckle SW [SRS Airbag]6 Right side Buckle SW [SRS Airbag]7
Driver side buckle switch signal	Main body ECU (multiplex network body ECU)*4	-	Combination meter assembly*2	-
Passenger side buckle switch signal	Airbag sensor assembly	Combination meter assembly	-	P-Seatbelt Buckle SW [Combination Meter] Right side Buckle SW [SRS Airbag]*6
Headlight switch	Main body ECU (multiplex network body ECU)	Combination meter assembly Headlight leveling ECU assembly Lane departure warning camera	ECM Air conditioning amplifier assembly Blind spot monitor sensor LH Driving support ECU assembly Combination meter assembly	Dimmer SW [Main Body] Head Light SW (Head) [Main Body] Head Light SW (Tail) [Main Body] Tail Relay SW [Combination Meter] Headlight Low Beam State [HL AutoLeveling] Headlight High Beam State [HL AutoLeveling] Head Light (High Beam) [Lane Departure Alert]
Side turn signal	Combination meter assembly*2	Blind spot monitor sensor LH Lane departure warning camera	Driving support ECU assembly	Turn Switch State [Blind spot monitor Master] Turn Signal Switch (Right) [Lane Departure Alert] Turn Signal Switch (Left) [Lane Departure Alert]
ECM power source voltage*1	ECM	-	-	Battery Voltage [Engine]
Combination meter assembly power source voltage*1	Combination meter assembly	-	-	+B Voltage Value [Combination Meter]
Skid control ECU (brake actuator assembly) power source voltage*1	Skid control ECU (brake actuator assembly)	-	-	IG1 Voltage Value [ABS/VSC/TRC]
Power steering ECU assembly power source voltage*1	Power steering ECU assembly	-	-	IG Power Supply [EMPS]
Navigation receiver assembly power source voltage*1	Navigation receiver assembly	-	-	Battery Voltage [Navigation System]
Radio and display receiver assembly power source voltage*1	Radio and display receiver assembly	-	-	Battery Voltage [Navigation System]
Headlight leveling ECU assembly power source voltage*1	Headlight leveling ECU assembly	-	-	+B [HL AutoLeveling]
Solar sensor*1	Air conditioning amplifier assembly	-	-	Solar Sensor (D side) [Air Conditioner]
Driver door touch sensor*1	Certification ECU (smart key ECU assembly)	-	-	D-Door Touch Sensor [Entry&Start]
Clearance sonar main switch condition*1	Clearance warning ECU assembly	-	-	Main Switch [Clearance Sonar]
Transfer control solenoid current*1	4WD ECU assembly	-	-	SLC Solenoid Current [Four Wheel Drive]
Blind spot monitor sensor LH power source voltage*1	Blind spot monitor sensor LH	-	-	Power Supply Voltage [Blind Spot Monitor Master]
Outer mirror control ECU assembly (for driver side) power source voltage*1	Outer mirror control ECU assembly (for driver side)	-	-	+B Voltage Input Value [Mirror L]6 +B Voltage Input Value [Mirror R]7
Outer mirror control ECU assembly (for front passenger side) power source voltage*1	Outer mirror control ECU assembly (for front passenger side)	-	-	+B Voltage Input Value [Mirror R]6 +B Voltage Input Value [Mirror L]7
Position control ECU and switch assembly power source voltage*1	Position control ECU and switch assembly	-	-	Power Voltage [Driver Seat]
Wiper operation status*1	Driving support ECU assembly	-	-	Wiper Information [Pre-Crash 2]

*1: Whether the ECU that sends data is functioning or not can be judged by using the GTS to check items such as switches or sensors that send signals to the ECU via direct lines.

*2: Although the received contents cannot be checked in the Data List, whether or not the data is received normally can be checked by observing the combination meter assembly.

*3: The combination meter assembly receives a vehicle speed signal from the skid control ECU (brake actuator assembly) and sends the signal to other ECUs.

*4: The main body ECU (multiplex network body ECU) receives a driver seat buckle switch signal from the airbag ECU assembly and sends the signal to other ECUs.

*5: for 1AR-FE

*6: for LHD

*7: for RHD

Details of relevant Data List items (Selected system: Engine) (for 1AR-FE)

Tech Tips

Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Tech Tips

Normal Condition: If no conditions are specifically stated for "idling", the shift lever should be in N or P, the A/C switch should be off and all accessory switches should be off.

Warm up the engine.
Turn the A/C switch off.
Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Data List.

According to the display on the GTS, read the "Data List".

Powertrain > Engine > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Vehicle Speed	Vehicle speed	Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Actual vehicle speed	This is the current vehicle speed. The vehicle speed is detected using the wheel speed sensors. Vehicle speed data is delayed when it is displayed. Therefore, even if the vehicle speed listed in the freeze frame data is 0 km/h (0 mph), this does not always mean that the malfunction occurred when the vehicle was stopped.
Engine Speed	Engine speed	Min.: 0 rpm, Max.: 16383 rpm	610 to 710 rpm: Idling	When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed.
Coolant Temp	Coolant temperature	Min.: -40°C (-40°F), Max.: 140°C (284°F)	75 to 100°C (167 to 212°F): After warming up	This is the engine coolant temperature. Tech Tips After warming up the engine, the engine coolant temperature is 75 to 100°C (167 to 212°F). After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature are approximately equal. If the value is -40°C (-40°F), or 140°C (284°F), the sensor circuit is open or shorted. Check if the engine overheats when the value indicates 140°C (284°F).
Battery Voltage	Battery voltage	Min.: 0 V, Max.: 65.535 V	11 to 14 V: Idling	If 11 V or less, characteristics of some electrical components may change.
Accelerator Position	Accelerator pedal position	Min.: 0%, Max.: 399.9%	Actual accelerator pedal position	This is the accelerator pedal position defined using the learned fully released position (sensor output) of No. 1 accelerator pedal position sensor as 0% and the fully depressed position as 100%.
Neutral Position SW Signal	Neutral Position switch signal status	ON or OFF	ON: Shift lever in P or N	-
Ambient Temp for A/C	Ambient temperature for A/C	Min.: -40°C (-40°F), Max.: 215°C (419°F)	-	-

Details of relevant Data List items (Selected system: Engine) (for 2GR-FE)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Tech Tips

Normal Condition: If no conditions are specifically stated for "idling", the shift lever should be in N or P, the A/C switch should be off and all accessory switches should be off.

Warm up the engine.
Turn the A/C switch off.
Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List.

According to the display on the GTS, read the "Data List".

Powertrain > Engine > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Vehicle Speed	Vehicle speed	Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Actual vehicle speed	This is the current vehicle speed. The vehicle speed is detected using the wheel speed sensors. Vehicle speed data is delayed when it is displayed. Therefore, even if the vehicle speed listed in the freeze frame data is 0 km/h (0 mph), this does not always mean that the malfunction occurred when the vehicle was stopped.
Engine Speed	Engine speed	Min.: 0 rpm, Max.: 16383 rpm	600 to 700 rpm: Idling	When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed.
Coolant Temp	Coolant temperature	Min.: -40°C (-40°F), Max.: 140°C (284°F)	75 to 100°C (167 to 212°F): After warming up	This is the engine coolant temperature. Tech Tips After warming up the engine, the engine coolant temperature is 75 to 100°C (167 to 212°F). After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature are approximately equal. If the value is -40°C (-40°F), or 140°C (284°F), the sensor circuit is open or shorted. Check if the engine overheats when the value indicates higher than 140°C (284°F).
Battery Voltage	Battery voltage	Min.: 0 V, Max.: 65.535 V	11 to 14 V: Idling	If 11 V or less, characteristics of some electrical components may change.
Accelerator Position	Accelerator pedal position	Min.: 0%, Max.: 399.9%	Actual accelerator pedal position	This is the accelerator pedal position defined using the learned fully released position (sensor output) of No. 1 accelerator pedal position sensor as 0% and the fully depressed position as 100%.
Neutral Position SW Signal	Neutral Position switch signal status	ON or OFF	ON: Shift lever in P or N	-
Ambient Temp for A/C	Ambient temperature for A/C	Min.: -40°C (-40°F), Max.: 215°C (419°F)	-	-

Details of relevant Data List items (Selected system: ABS/VSC/TRC)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Warm up the engine.
Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Chassis / ABS/VSC/TRC / Data List.

According to the display on the GTS, read the "Data List".

Chassis > ABS/VSC/TRC > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Deceleration Sensor	Acceleration sensor reading	Min.: -18.525 m/s², Max.: 18.387 m/s²	-	During deceleration/acceleration: Changes continuously
Deceleration Sensor2	Acceleration sensor 2 reading	Min.: -18.525 m/s², Max.: 18.387 m/s²	-	During deceleration/acceleration: Changes continuously
Yaw Rate Sensor	Yaw rate sensor	Min.: -128°/s, Max.: 127°/s	Vehicle stopped: 0°/s Turning right: -128 to 0°/s Turning left: 0 to 127°/s	-
Steering Angle Sensor	Steering angle sensor	Min.: -3276.8°, Max.: 3276.7°	Turning left: Increases Turning right: Decreases	-
FR Wheel Speed	Front wheel speed sensor RH reading	Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations
FL Wheel Speed	Front wheel speed sensor LH reading	Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations
RR Wheel Speed	Rear wheel speed sensor RH reading	Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations
RL Wheel Speed	Rear wheel speed sensor LH reading	Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations
Vehicle Speed	Maximum wheel speed sensor reading	Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations
Engine Revolutions	Engine speed	Min.: 0 rpm, Max.: 65535 rpm	Engine stopped: 0 rpm	When engine speed is constant: No large fluctuations
Accelerator Opening Angle %	Percentage of accelerator pedal opening angle	Min.: 0.0%, Max.: 128.0%	Accelerator pedal released: 0.0%	During accelerator pedal operation: Changes in proportion with the pedal movement
IG1 Voltage Value	IG1 voltage value	Min.: 0.00 V, Max.: 20.00 V	Ignition switch ON: 11.00 to 14.00 V	Changes in proportion to battery voltage

Details of relevant Data List items (Selected system: EMPS)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Chassis / EMPS / Data List.

According to the display on the GTS, read the "Data List".

Chassis > EMPS > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Meter Vehicle Velocity	Vehicle speed from speedometer	Min.: 0.0 km/h (0.0 MPH) Max.: 300.0 km/h (186.4 MPH)	0 km/h (0 MPH): Engine running and vehicle stopped No significant fluctuation: Engine running and vehicle driven at a constant speed	-
Engine Revolution	Engine speed	Min.: 0 rpm Max.: 12800 rpm	No significant fluctuation	Engine running at a constant speed
Steering Angle Velocity	Steering angle speed	Min.: -32768 deg/s Max.: 32767 deg/s	Value changes in proportion to steering speed - The value increases when turning left and decreases when turning right	Engine running and steering wheel being turned
IG Power Supply	IG power source voltage	Min.: 0.0000 V Max.: 20.1531 V	9 to 16 V	Ignition switch ON

Details of relevant Data List items (Selected system: Combination Meter)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Warm up the engine.
Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Combination Meter / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Combination Meter > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Tail Relay SW	Tail relay	OFF or ON	OFF: Tail relay off ON: Tail relay on	-
P-Seatbelt Buckle SW	Front passenger seat belt buckle switch	OFF or ON	OFF: Front passenger seat belt fastened (seat belt warning light off) ON: Front passenger seat belt unfastened (seat belt warning light on)	-
Vehicle Speed Meter	Vehicle speed	Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Almost the same as actual vehicle speed	-
Engine Rpm	Engine speed	Min.: 0 rpm, Max.: 12750 rpm	Almost the same as actual tachometer	-
Coolant Temperature	Engine coolant temperature	Min.: 0°C (32°F), Max.: 127.5°C (261.5°F)	75 to 100°C (167 to 212°F): After warming up engine	-
+B Voltage Value	Battery voltage	Min.: 0 V, Max.: 25.5 V	11 to 14 V	-
Ambient Temperature	Outside temperature	Min.: -40°C (-40°F), Max.: 87.5°C (189.5°F)	Almost the same as actual outside temperature	The temperature displayed on the multi-information display is -40 to 50°C (-40 to 122°F)

Details of relevant Data List items (Selected system: Power Source Control)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Power Source Control / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Power Source Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Shift P Signal

Shift position P

OFF or ON

OFF: Shift lever not in P

ON: Shift lever in P

Use this item to determine whether the shift lever position switch (P) is malfunctioning.

Engine Condition

Engine state

Stop or Run

Stop: Engine stopped

Run: Engine running

Vehicle Speed Signal

Vehicle being driven or stopped

Stop or Run

Stop: Vehicle stopped

Run: Vehicle being driven at 5 km/h (3 mph) or more

Details of relevant Data List items (Selected system: Starting Control)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Starting Control / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Starting Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Shift Position P or N

Park/Neutral position switch status

OFF or ON

OFF: Shift lever not in P

ON: Shift lever in P

When malfunctioning, the engine will not crank.

Engine Speed

Engine speed

0 to 16383 rpm

Fluctuates in accordance with engine speed

Details of relevant Data List items (Selected system: Air Conditioner)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Air Conditioner / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Air Conditioner > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Ambient Temp Sensor

Thermistor assembly

Min.: -23.30°C (-9.94°F)

Max.: 65.95°C (150.71°F)

Actual ambient temperature displayed

Solar Sensor (D Side)

Driver side automatic light control sensor

Min.: 0

Max.: 255

Driver side automatic light control sensor value increases as brightness increases

Engine Coolant Temp

Engine coolant temperature sensor

Min.: 1.30°C (34.34°F)

Max.: 90.55°C (194.99°F)

Actual engine coolant temperature displayed

*: for Automatic Air Conditioning System

Details of relevant Data List items (Selected system: Back Door)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Back Door / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Back Door > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

IG SW

Ignition switch signal

ON or OFF

ON: Ignition switch ON

OFF: Ignition switch off

"OFF" is also displayed for this item when the ignition switch is ACC.

Details of relevant Data List items (Selected system: Navigation System)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Navigation System / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Navigation System > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Battery Voltage

Battery voltage

Min.: 0 V, Max.: 24 V

11 to 14 V

Reverse Signal

Reverse signal

ON or OFF

ON: Shift lever in R

OFF: Shift lever in any position other than R

Vehicle Speed

Maximum wheel speed sensor reading

Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

Details of relevant Data List items (Selected system: Blind Spot Monitor Master)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Blind Spot Monitor Master / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Blind Spot Monitor Master > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Turn Switch State	State of the turn signal switch	Left ON, Right ON or OFF	Left ON: Left side of turn signal switch on Right ON: Right side of turn signal switch on OFF: Turn signal switch off	-
Reverse (Only for AT/CVT)	State of the shift position R signal	OFF or ON	OFF: Shift lever in any position except R ON: Shift lever in R	-
Vehicle Speed	Vehicle speed signal	Min.: -327.68 km/h (-204 mph), Max.: 327.67 km/h (204 mph)	Vehicle stopped: 0 km/h (0 mph)	-
Steering Angle	Steering angle sensor	Min.: -3072 deg, Max.: 3070.5 deg	Left turn: Increases Right turn: Decreases	-
Power Supply Voltage	Power supply voltage	Min.: 0 V, Max.: 49.951 V	Engine switch on (IG): 11 to 14 V	-

Details of relevant Data List items (Selected system: Radar Cruise)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Radar Cruise / Data List.

According to the display on the GTS, read the "Data List".

Powertrain > Radar Cruise > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
CCS Vehicle Spd	Vehicle speed	min.: 0 km/h (0 mph), max.: 255 km/h (158 mph)	Actual vehicle speed	-

Details of relevant Data List items (Selected system: Clearance Sonar)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Clearance Sonar / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Clearance Sonar > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Main Switch	Back sonar or clearance sonar switch assembly	OFF or ON	OFF: Back sonar or clearance sonar switch assembly off ON: Back sonar or clearance sonar switch assembly on	-
Parking Signal	Parking signal	OFF or ON	OFF: Shift lever in any position except P ON: Shift lever in P	-
Reverse Signal	Reverse signal	OFF or ON	OFF: Shift lever in any position except R ON: Shift lever in R	-
Vehicle Speed Info	Vehicle speed signal	Snr Stop or Snr Work	Snr Stop: Vehicle speed 15 km/h (9 mph) or more (when accelerating) or 10 km/h (6 mph) or more (when decelerating) Snr Work: Vehicle speed less than 15 km/h (9 mph) (when accelerating) or less than 10 km/h (6 mph) (when decelerating)	-

Details of relevant Data List items (Selected system: Four Wheel Drive)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Chassis / Four Wheel Drive / Data List.

According to the display on the GTS, read the "Data List".

Chassis > Four Wheel Drive > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Lateral G	Lateral G	Min.: -25.10 m/s² max.: 24.90 m/s²	-	Changes in proportion with acceleration during turning.
Forward and Rearward G	Forward and Rearward G	Min.: -25.10 m/s² Max.: 24.90 m/s²	Approximately 0 +/-0.13 m/s²while stationary	Changes in proportion with acceleration/deceleration.
Yaw Rate Value	Yaw rate value	Min.: -128°/s Max.: 127°/s	-	Changes in proportion with yaw during turning.
Steering Angle Value	Steering angle value	Min.: -3276.8° Max.: 3276.7°	Left turn: Increases Right turn: Decreases	Changes in proportion with the amount of steering wheel rotation during steering operation.
FR Wheel Speed	Front wheel speed sensor RH reading	Min.: 0 km/h (0 mph) Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	No large fluctuations when driving at a constant speed.
FL Wheel Speed	Front wheel speed sensor LH reading	Min.: 0 km/h (0 mph) Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	No large fluctuations when driving at a constant speed.
RR Wheel Speed	Rear wheel speed sensor RH reading	Min.: 0 km/h (0 mph) Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	No large fluctuations when driving at a constant speed.
RL Wheel Speed	Rear wheel speed sensor LH reading	Min.: 0 km/h (0 mph) Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	No large fluctuations when driving at a constant speed.
Engine Coolant Temperature	Engine coolant temperature	Min.: 0°C (32°F) Max.: 127.5°C (261.5°F)	Actual engine coolant temperature is displayed	-
Ambient Temperature	Vehicle ambient temperature	Min.: -128°C (-198.4°F) Max.: 127°C (260.6°F)	Actual ambient temperature is displayed	-
SLC Solenoid Current	SLC solenoid (4WD linear solenoid) current	Min.: 0 A Max.: 3 A	0 to 3 A	-

Details of relevant Data List items (Selected system: Driver Seat)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Driver Seat / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Driver Seat > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Ignition Switch	Communication state of engine switch signal	ON or OFF	ON: Engine switch on (IG) OFF: Engine switch off or on (ACC)	-
P Switch	Park state signal	ON or OFF	ON: Shift lever in P OFF: Shift lever in a position other than P	-
Vehicle Speed	Vehicle speed data	Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Actual vehicle speed	-
Power Voltage	Power supply for front power seat switch (driver seat)	Min: 0.95 V, Max: 20.84 V	Within range from 11 to 14 V	-

Details of relevant Data List items (Selected system: IPA/Parking Assist Monitor)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Chassis / IPA/Parking Assist Monitor / Data List.

According to the display on the GTS, read the "Data List".

Chassis > IPA/Parking Assist Monitor > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Wheel Speed Sensor (4wheel)

Vehicle speed signal from speed sensor

OK or NG

OK: Speed signal normal

NG: Speed signal abnormal

Details of relevant Data List items (Selected system: HL AutoLeveling)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / HL AutoLeveling / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > HL AutoLeveling > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Headlight Low Beam State	Low beam headlight state	ON or OFF	ON: Low beam headlights on OFF: Low beam headlights off	-
Headlight High Beam State	High beam headlight state	ON or OFF	ON: High beam headlights on OFF: High beam headlights off	-
+B	IG power supply voltage value	0.00 to 19.75 V	11 to 14 V	-
Front Right Wheel Speed Value	Front right wheel speed	0.00 to 260.00 km/h (162.00 mph)	Condition can be displayed	-
Front Left Wheel Speed Value	Front left wheel speed	0.00 to 260.00 km/h (162.00 mph)	Condition can be displayed	-

Details of relevant Data List items (Selected system: Main Body)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Main Body / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Main Body > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
IG SW	Ignition switch ON signal	ON or OFF	ON: Ignition switch ON OFF: Ignition switch off	"OFF" is also displayed for this item when the ignition switch is ACC.
FR Door Courtesy SW	Front door courtesy light switch assembly RH signal	ON or OFF	ON: Front door RH open OFF: Front door RH closed	-
FL Door Courtesy SW	Front door courtesy light switch assembly LH signal	ON or OFF	ON: Front door LH open OFF: Front door LH closed	-
Dimmer SW	Dimmer switch high position signal	ON or OFF	ON: Dimmer switch in high or high flash position OFF: Dimmer switch in low position	-
Head Light SW (Head)	Light control switch head position signal	ON or OFF	ON: Light control switch in head position OFF: Light control switch not in head position	-
Head Light SW (Tail)	Light control switch tail position signal	ON or OFF	ON: Light control switch in tail or head position OFF: Light control switch in neither tail nor head position	-

Details of relevant Data List items (Selected system: Lane Departure Alert)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Chassis / Lane Departure Alert / Data List.

According to the display on the GTS, read the "Data List".

Chassis > Lane Departure Alert > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Head Light (High Beam)

Status of the head light (high beam)

OFF or ON

ON: Headlight dimmer switch HI

OFF: Headlight dimmer switch except HI

Turn Signal Switch (Right)

Status of turn signal light switch (right)

OFF or ON

ON: Turn signal light switch on (right)

OFF: Turn signal light switch off

Turn Signal Switch (Left)

Status of turn signal light switch (left)

OFF or ON

ON: Turn signal light switch on (left)

OFF: Turn signal light switch off

Details of relevant Data List items (Selected system: Entry&Start)

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Tech Tips

Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.
When using the GTS with the ignition switch off to troubleshoot:

Connect the GTS to the DLC3 and turn a courtesy light switch on and off at 1.5-second intervals until communication between the GTS and vehicle begins.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Entry&Start / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Entry&Start > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

D-Door Touch Sensor

Driver door touch sensor (unlock sensor)

ON or OFF

ON: Driver door touch sensor (unlock sensor) touched

OFF: Driver door touch sensor (unlock sensor) not touched

Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily).
Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.

Details of relevant Data List items (Selected system: Mirror R)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Mirror R / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Mirror R > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
+B Voltage Input Value	Power supply for outer mirror control ECU assembly	MIN: 0 V, MAX: 25.5 V	11 to 14 V	-

Details of relevant Data List items (Selected system: Mirror L)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Mirror L / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Mirror L > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
+B Voltage Input Value	Power supply for outer mirror control ECU assembly	MIN: 0 V, MAX: 25.5 V	11 to 14 V	-

Details of relevant Data List items (Selected system: Pre-Crash 2)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Pre-Crash 2 / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > Pre-Crash 2 > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Wiper Information	Wiper operational status	Unoperat, Oil off, Mist, Washer, Unknown, Intermi, Lo or Hi	The respective operational status displayed	-

Details of relevant Data List items (Selected system: SRS Airbag)

Tech Tips

Note

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / SRS Airbag / Data List.

According to the display on the GTS, read the "Data List".

Body Electrical > SRS Airbag > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Left side Buckle SW

Front LH Buckle Switch

Unset: Seat belt is not fastened

Set: Seat belt is fastened

NG: Data is not determined

Unset/Set

for LHD

Right side Buckle SW

Front RH Buckle Switch

Unset: Seat belt is not fastened

Set: Seat belt is fastened

NG: Data is not determined

Unset/Set