CAN COMMUNICATION SYSTEM(w/o Central Gateway ECU) DIAGNOSIS SYSTEM

ECUS OR SENSORS WHICH COMMUNICATE THROUGH CAN COMMUNICATION SYSTEM (for LHD)
1. V Bus
  1. Combination meter assembly
  2. Power steering ECU with motor assembly
  3. Main body ECU (multiplex network body ECU)
  4. Steering sensor
  5. Airbag sensor assembly
  6. ECM
  7. Brake actuator assembly (skid control ECU)
  8. Air conditioning amplifier assembly
  9. Certification ECU (smart key ECU assembly)
  10. Radio receiver assembly*1*2
  11. Clearance warning ECU assembly
  12. Telematics transceiver*3
  13. Engine stop and start ECU*4
  14. Headlight leveling ECU (headlight swivel ECU assembly)
2. Sub Bus 1
  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. Front power seat switch LH*5
  5. Front power seat switch RH*5
  6. Multiplex tilt and telescopic ECU*6
  7. Luggage closer motor assembly*7
  8. Rear television camera assembly*8
    
    Tech Tips
    
    *1: for Navigation Receiver Type
    
    *2: for Radio and Display Type
    
    *3: w/ Telematics Transceiver
    
    *4: for 6AR-FSE
    
    *5: w/ Seat Position Memory System
    
    *6: w/ Power Tilt and Power Telescopic Steering Column System
    
    *7: w/ Power Trunk Lid System
    
    *8: for Radio and Display Type (w/ Parking Assist Monitor System without Parallel Parking Assist Function)
    
    *9: w/ Reverse Shift-linked Mirror
ECUS OR SENSORS WHICH COMMUNICATE THROUGH CAN COMMUNICATION SYSTEM (for RHD)
1. V Bus
  1. Combination meter assembly
  2. Power steering ECU with motor assembly
  3. Main body ECU (multiplex network body ECU)
  4. Steering sensor
  5. Airbag sensor assembly
  6. ECM
  7. Brake actuator assembly (skid control ECU)
  8. Air conditioning amplifier assembly
  9. Certification ECU (smart key ECU assembly)
  10. Radio receiver assembly*1*2
  11. Clearance warning ECU assembly
  12. Headlight leveling ECU (headlight swivel ECU assembly)
2. Sub Bus 1
  1. Main body ECU (multiplex network body ECU)
  2. Outer mirror control ECU assembly (for driver side)
  3. Outer mirror control ECU assembly (for front passenger side)
  4. Front power seat switch LH*3
  5. Front power seat switch RH
  6. Multiplex tilt and telescopic ECU*4
  7. Luggage closer motor assembly*5
  8. Rear television camera assembly*6
    
    Tech Tips
    
    *1: for Navigation Receiver Type
    
    *2: for Radio and Display Type
    
    *3: w/ Seat Position Memory System (for Front Passenger Side)
    
    *4: w/ Power Tilt and Power Telescopic Steering Column System
    
    *5: w/ Power Trunk Lid System
    
    *6: for Radio and Display Type (w/ Parking Assist Monitor System without Parallel Parking Assist Function)

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

The systems (ECUs and sensors) that use 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.

ECU/Sensor Name	GTS Display	Applicability
ECM	ECM (Engine)	Installed on all vehicles
Combination meter assembly	Combination Meter	Installed on all vehicles
Main body ECU (multiplex network body ECU)	Main Body	Installed on all vehicles
Power steering ECU with motor assembly	Power Steering (EPS)	Installed on all vehicles
Brake actuator assembly (skid control ECU)	Skid Control (ABS/VSC/TRAC)	Installed on all vehicles
Steering sensor	Spiral cable (Steering Angle Sensor)	Installed on all vehicles
Airbag sensor assembly	Airbag	Installed on all vehicles
Certification ECU (smart key ECU assembly)	Certification (Smart)	Installed on all vehicles
Air conditioning amplifier assembly	Air Conditioning Amplifier	Installed on all vehicles
Radio receiver assembly	Display and Navigation (AVN1)	Vehicles with navigation receiver Vehicles with radio and display
Telematics transceiver	DCM	Vehicles with Telematics Transceiver
Clearance warning ECU assembly	Clearance warning (Clearance Sonar1)	Installed on all vehicles
Outer mirror control ECU assembly (for LHD, driver side) Outer mirror control ECU assembly (for RHD, front passenger side)	Front Door LH/L-Mirror (FL-Door2/L-Mirror)	Vehicles with Reverse Shift-linked Mirror
Outer mirror control ECU assembly (for LHD, front passenger side) Outer mirror control ECU assembly (for RHD, driver side)	Front Door RH/R-Mirror (FR-Door2/R-Mirror)	Vehicles with Reverse Shift-linked Mirror
Front power seat switch LH (for LHD) Front power seat switch RH (for RHD)	D-Seat	Vehicles with Seat Position Memory System
Front power seat switch RH (for LHD) Front power seat switch LH (for RHD)	P-Seat	Vehicles with Seat Position Memory System
Multiplex tilt and telescopic ECU	Multiplex Tilt and Telescopic	Vehicles with Power Tilt and Power Telescopic Steering Column System
Luggage closer motor assembly	Back Door	Vehicles with Power Trunk Lid System
Rear television camera assembly	Parking Assist Monitor System3	Vehicles with radio and display (w/ Parking Assist Monitor System without Parallel Parking Assist Function)
Engine stop and start ECU	Stop and Go/Start	Vehicles with 6AR-FSE
Headlight leveling ECU (headlight swivel ECU assembly)	Headlight swivel (AFS)	Installed on all vehicles

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 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 engine switch on (IG) (or simulate the driving conditions that enable the malfunction to be reproduced) and select the 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

Text in Illustration
*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.

Text in Illustration
*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 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.

Text in Illustration

*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.
Text in Illustration

*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.)

Text in Illustration
*a	Not displayed or background color changes to red

Text in Illustration
*a	Background color changes to red

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.)

Text in Illustration
*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.)

Text in Illustration
*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	-	-

Text in Illustration
*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.
  
  Text in Illustration
  
  *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.
  
  Text in Illustration
  
  *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.
  
  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.

Text in Illustration
*a	Items to be Checked	-	-

Text in Illustration
*a	Items to be Checked	-	-

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.

Text in Illustration
*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 system function temporarily returns to normal, DTCs may not be output again even though the following DTC check procedures are used.

ECM (for 2AR-FE) / GTS Display "Engine and ECT"

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 2AR-FE) / GTS Display "Engine and ECT"
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 transmission control ECU does not receive data from the engine control ECU for 1.25 seconds or more.	Both conditions are met: The engine switch is on (IG). The power source voltage of the ECM is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 5 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.
U0101*2	Lost Communication with TCM	The engine control ECU does not receive data from the transmission control ECU for 1.25 seconds or more.	Both conditions are met: The engine switch is on (IG). The power source voltage of the ECM is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 5 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.

ECM (for 2AR-FE) / GTS Display "Cruise Control"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

ECM (for 2AR-FE) / GTS Display "Cruise Control"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0122	Lost Communication with Vehicle Dynamics Control Module	The ECM does not receive data from the brake actuator assembly (skid control ECU) for 2.58 seconds.	All conditions are met: The engine switch is on (IG) for 1 second or more. The cruise control switch is on. The power source voltage of the ECM is 10.5 V or more.	Allow the cruise control system to operate for 3.58 seconds or more.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

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

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 engine switch is on (IG). The power source voltage of the ECM is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 5 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.

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

Tech Tips

This ECU uses the CAN communication system for DTC communication.

ECM (for 2GR-FE) / GTS Display "Cruise Control"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0122	Lost Communication with Vehicle Dynamics Control Module	The ECM does not receive data from the brake actuator assembly (skid control ECU) for 2.58 seconds.	All conditions are met: The engine switch is on (IG) for 1 second or more. The cruise control switch is on. The power source voltage of the ECM is 10.5 V or more.	Allow the cruise control system to operate for 3.58 seconds or more.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

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

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*: Refer to U660E Automatic Transaxle System 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 engine switch is on (IG). The power source voltage of the TCM is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 5 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.

ECM (for 6AR-FSE) / GTS Display "Engine"

Tech Tips

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

ECM (for 6AR-FSE) / GTS Display "Engine"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U010187*	Lost Communication with TCM Missing Message	The ECM does not receive data from the TCM for 1.25 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the ECM is 10 V or more.	Turn the engine switch on (IG) and wait at least 5 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.
U110387	Lost Communication with Stop and Start Control Module Missing Message	The ECM does not receive data from the engine stop and start ECU for 1.64 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the ECM is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 2.64 seconds.	-	DTC is stored until it is cleared using the GTS.

ECM (for 6AR-FSE) / GTS Display "Transmission"

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*1: Refer to U761E Automatic Transaxle System Click here.
*2: Refer to U761E Automatic Transaxle System Click here.

ECM (for 6AR-FSE) / GTS Display "Transmission"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U010087*1	Lost Communication with ECM / PCM "A"	Inside the ECM, the transmission control ECU does not receive data from the engine control ECU for 1.25 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the ECM is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 2.25 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.
U110387*2	Lost Communication with Stop and Start Control Module Missing Message	The ECM does not receive data from the engine stop and start ECU for 1.64 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the ECM is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 2.64 seconds.	-	DTC is stored until it is cleared using the GTS.

ECM (for 6AR-FSE) / GTS Display "Cruise Control"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

ECM (for 6AR-FSE) / GTS Display "Cruise Control"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U012287	Lost Communication with Vehicle Dynamics Control Module	The ECM does not receive data from the brake actuator assembly (skid control ECU) for 2.58 seconds.	All conditions are met: The engine switch is on (IG) for 1 second or more. The cruise control switch is on. The power source voltage of the ECM is 10.5 V or more.	Allow the cruise control system to operate for 3.58 seconds or more.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

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

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Brake Actuator Assembly (Skid Control ECU) / 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: With IG1 terminal voltage at 10 V or more, delayed reception of data from the yaw rate and acceleration sensor (built into the airbag sensor assembly), or steering sensor continues for 1 second or more. The following condition occurs 10 times or more within 60 seconds: With IG1 terminal voltage at 10 V or more, delayed reception of data from the yaw rate and acceleration sensor (built into the airbag sensor assembly), or steering sensor occurs once or more within 5 seconds. The following condition occurs 10 times in succession: The brake actuator assembly (skid control ECU) cannot send/receive data (bus off) once or more within 0.1 seconds.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the brake actuator assembly (skid control ECU) (IG1 terminal voltage) is 10 V or more.	Turn the engine switch on (IG) 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	With IG1 terminal voltage at 10 V or more and the vehicle speed at 15 km/h (9 mph) or more, the brake actuator assembly (skid control ECU) does not receive data from the ECM for 2 seconds or more.	All conditions are met: Vehicle speed is 15 km/h (9 mph) or more. The engine switch is on (IG) for 1 second or more. The power source voltage of the brake actuator assembly (skid control ECU) (IG1 terminal voltage) is 10 V or more.	Turn the engine switch on (IG) and drive the vehicle at a speed of 15 km/h (9 mph) or more for 2 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: With IG1 terminal voltage at 10 V or more and the vehicle speed at 7 km/h (4 mph) or more, the brake actuator assembly (skid control ECU) does not receive data from the yaw rate and acceleration sensor (built into the airbag sensor assembly) for 1 second or more. The following condition occurs 10 times or more within 60 seconds: With IG1 terminal voltage at 10 V or more, the brake actuator assembly (skid control ECU) does not receive data from the yaw rate and acceleration sensor (built into the airbag sensor assembly) once or more within 5 seconds.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the brake actuator assembly (skid control ECU) (IG1 terminal voltage) is 10 V or more.	Driving the vehicle at a speed of 7 km/h (4 mph) or more for 60 seconds or more.	ABS warning light illuminates. Slip indicator light illuminates. Brake warning light illuminates.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Either condition is met: With IG1 terminal voltage at 10 V or more, the brake actuator assembly (skid control ECU) does not receive data from the steering sensor for 1 second or more. The following condition occurs 10 times or more within 60 seconds: With IG1 terminal voltage at 10 V or more, the brake actuator assembly (skid control ECU) does not receive data from the steering sensor for once or more within 5 seconds.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the brake actuator assembly (skid control ECU) (IG1 terminal voltage) is 10 V or more.	Turn the engine switch on (IG) and wait at least 60 seconds.	Slip indicator light illuminates.	DTC is stored until it is cleared using the GTS.

Power Steering ECU with Motor Assembly / GTS Display "EMPS"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Power Steering ECU with Motor 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 with motor assembly does not receive data from the ECM for 1.34 seconds or more.	All conditions are met: The engine switch is on (IG) for 3 seconds or more. The power source voltage of the power steering ECU with motor assembly is 9 V or more. Vehicle speed is 20 km/h (12 mph) or more for at least 5 minutes.	Drive the vehicle at a speed of 20 km/h (12 mph) or more for at least 5 minutes.	EPS warning light does not illuminate.	DTC remains stored only while malfunction is occurring.
U0129	Lost Communication with Brake System Control Module	The power steering ECU with motor assembly cannot receive data from the brake actuator assembly (skid control ECU) for 2.34 seconds or more.	Both conditions are met: The engine switch is on (IG) for 3 seconds or more. The power source voltage of the power steering ECU with motor assembly is 9 V or more.	Turn the engine switch on (IG) and wait at least 6 seconds.	EPS warning light illuminates.	DTC remains stored only while malfunction is occurring.

Steering Sensor / GTS Display "-"

Tech Tips

The steering sensor is connected to the CAN communication system, but the steering sensor does not store or output CAN communication DTCs.
Airbag Sensor Assembly / GTS Display "SRS Airbag"

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.

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

Tech Tips

This ECU uses the CAN communication system for DTC communication.

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 engine switch on (IG) 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 engine switch on (IG) 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 engine switch on (IG) 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 engine switch on (IG) 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 engine switch on (IG) and wait at least 20 seconds.	w/ Tire pressure warning system: Tire pressure warning light blinks and then illuminates.	DTC is stored until it is cleared using the GTS.
U0164	Lost Communication with HVAC Control Module	The main body ECU (multiplex network body ECU) does not receive data from the air conditioning amplifier 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 engine switch on (IG) and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0198	Lost Communication with Telematic Control Module	The main body ECU (multiplex network body ECU) does not receive data from the telematics transceiver 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 engine switch on (IG) 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. (for LHD) 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. (for RHD)	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 engine switch on (IG) 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. (for LHD) 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. (for RHD)	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 engine switch on (IG) 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 front power seat switch LH 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 engine switch on (IG) and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0209	Lost Communication with "Seat Control Module B"	The main body ECU (multiplex network body ECU) does not receive data from the front power seat switch RH 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 engine switch on (IG) 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 luggage closer motor 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 engine switch on (IG) and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0265	Lost Communication with Parking Assist Monitor Module	The main body ECU (multiplex network body ECU) does not receive data from the rear 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 engine switch on (IG) and wait at least 20 seconds.	-	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 engine switch on (IG) 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) does not receive data from ECUs with a sub bus 1 connection record 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 engine switch on (IG) and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U1115	Lost Communication with Tilt and Telescopic Module	The main body ECU (multiplex network body ECU) does not receive data from the multiplex tilt and telescopic 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 engine switch on (IG) 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"

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: 10 seconds have elapsed after connection of the battery. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the engine switch on (IG) 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: 10 seconds have elapsed after connection of the battery. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the engine switch on (IG) 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: 10 seconds have elapsed after connection of the battery. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the engine switch on (IG) and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U1103	Lost Communication with Stop and Start Control Module Missing Message	The certification ECU (smart key ECU assembly) does not receive data from the engine stop and start ECU for 10 seconds or more.	Both conditions are met: 10 seconds have elapsed after connection of the battery. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the engine switch on (IG) 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"

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: 10 seconds have elapsed after connection of the battery. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the engine switch on (IG) and wait at least 13.1 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: 10 seconds have elapsed after connection of the battery. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the engine switch on (IG) and wait at least 13 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: 10 seconds have elapsed after connection of the battery. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the engine switch on (IG) and wait at least 13.1 seconds.	-	DTC is stored until it is cleared using the GTS.
U1103	Lost Communication with Stop and Start Control Module Missing Message	The certification ECU (smart key ECU assembly) does not receive data from the engine stop and start ECU for 5 seconds or more.	Both conditions are met: 10 seconds have elapsed after connection of the battery. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the engine switch on (IG) and wait at least 15 seconds.	-	DTC is stored until it is cleared using the GTS.

Air Conditioning Amplifier Assembly / GTS Display "Air Conditioner"

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 engine switch is on (IG). The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the engine switch on (IG) 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 with motor assembly for 5 seconds or more.	Both conditions are met: The engine switch is on (IG). The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the engine switch on (IG) 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 engine switch is on (IG). The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the engine switch on (IG) 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 engine switch is on (IG). The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the engine switch on (IG) and wait at least 5 seconds.	-	DTC is stored until it is cleared using the GTS.
U0163	Lost Communication with Navigation Control Module	The air conditioning amplifier assembly does not receive data from the radio receiver assembly for 5 seconds or more.	Both conditions are met: The engine switch is on (IG). The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the engine switch on (IG) and wait at least 5 seconds.	-	DTC is stored until it is cleared using the GTS.

Combination Meter Assembly / GTS Display "Combination Meter"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

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 2 seconds or more.	Both conditions are met: The engine switch is on (IG). The power source voltage of the combination meter assembly is between 9.5 and 11.5 V.	Turn the engine switch on (IG) and wait at least 2 seconds.	Needle of tachometer remains at 0 rpm.	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 brake actuator assembly (skid control ECU) for 3 seconds or more.	Both conditions are met: The engine switch is on (IG). The power source voltage of the combination meter assembly is between 9.5 and 11.5 V.	Turn the engine switch on (IG) and wait at least 3 seconds.	Needle of speedometer remains at 0 km/h (0 mph).	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 with motor assembly for 3 seconds or more.	Both conditions are met: The engine switch is on (IG). The power source voltage of the combination meter assembly is between 9.5 and 11.5 V.	Turn the engine switch on (IG) and wait at least 3 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 engine switch is on (IG). The power source voltage of the combination meter assembly is between 9.5 and 11.5 V.	Turn the engine switch on (IG) and wait at least 10 seconds.	-	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 engine switch is on (IG). The power source voltage of the combination meter assembly is between 9.5 and 11.5 V.	Turn the engine switch on (IG) and wait at least 10 seconds.	SRS warning light illuminates.	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 radio receiver assembly for 3 seconds or more.	Both conditions are met: The engine switch is on (IG). The power source voltage of the combination meter assembly is between 9.5 and 11.5 V.	Turn the engine switch on (IG) and wait at least 3 seconds.	-	DTC is stored until it is cleared using the GTS.
U0182	Lost Communication with AFS	The combination meter assembly does not receive data from the headlight leveling ECU (headlight swivel ECU assembly) for 10 seconds or more.	Both conditions are met: The engine switch is on (IG). The power source voltage of the combination meter assembly is between 9.5 and 11.5 V.	Turn the engine switch on (IG) and wait at least 10 seconds.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Radio Receiver Assembly (for Navigation Receiver Type) / GTS Display "Navigation System"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Radio Receiver Assembly (for Navigation Receiver Type) / 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 receiver assembly does not send/receive data 10 times in succession.	Both conditions are met: The engine switch is on (ACC) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (ACC) and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.
U0100	Engine ECU Communication	The radio receiver assembly does not receive data from the ECM for 12 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (IG) and wait at least 13 seconds.	-	DTC is stored until it is cleared using the GTS.
U0126	Steering Sensor Communication	The radio receiver assembly does not receive data from the steering sensor for 11 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (IG) and wait at least 12 seconds.	-	DTC is stored until it is cleared using the GTS.
U0129	VSC (ECB) ECU Communication	The radio receiver assembly does not receive data from the brake actuator assembly (skid control ECU) for 1 second or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (IG) and wait at least 2 seconds.	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	The radio 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 engine switch is on (IG) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (IG) and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Meter ECU Communication	The radio receiver assembly does not receive data from the combination meter assembly for 30 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (IG) and wait at least 31 seconds.	-	DTC is stored until it is cleared using the GTS.
U0164	Air Conditioner ECU Communication	The radio receiver assembly does not receive data from the air conditioning amplifier assembly for 10 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (IG) and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.
U0198	Lost Communication with Telematic Control Module	The radio receiver assembly does not receive data from the telematics transceiver for 3 seconds or more.	Both conditions are met: The engine switch is on (IG). The power source voltage of the radio receiver assembly is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 3 seconds.	-	DTC is stored until it is cleared using the GTS.
U1110	Clearance Sonar ECU Communication	The radio receiver assembly does not receive data from the clearance warning ECU assembly for 10 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (IG) and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.

Radio Receiver Assembly (for Radio and Display Type) / GTS Display "Navigation System"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Radio Receiver Assembly (for Radio and Display Type) / 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 receiver assembly does not send/receive data 10 times in succession.	Both conditions are met: The engine switch is on (ACC) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (ACC) and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.
U0100	Lost Communication with ECM	The radio receiver assembly does not receive data from the ECM for 12 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (IG) and wait at least 13 seconds.	-	DTC is stored until it is cleared using the GTS.
U0129	VSC (ECB) ECU Communication	The radio receiver assembly does not receive data from the brake actuator assembly (skid control ECU) for 1 second or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (IG) and wait at least 2 seconds.	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	The radio 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 engine switch is on (IG) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (IG) and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Meter ECU Communication	The radio receiver assembly does not receive data from the combination meter assembly for 30 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (IG) and wait at least 31 seconds.	-	DTC is stored until it is cleared using the GTS.
U0164	Air Conditioner ECU Communication	The radio receiver assembly does not receive data from the air conditioning amplifier assembly for 10 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (IG) and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.
U1110	Clearance Sonar ECU Communication	The radio receiver assembly does not receive data from the clearance warning ECU assembly for 10 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the engine switch on (IG) and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.

Front Power Seat Switch LH / GTS Display "Driver Seat" (for LHD), "Passenger Seat" (for RHD)

Tech Tips

The front power seat switch LH is connected to the CAN communication system, but the front power seat switch LH does not store or output CAN communication DTCs.
Front Power Seat Switch RH / GTS Display "Passenger Seat" (for LHD), "Driver Seat" (for RHD)

Tech Tips

The front power seat switch RH is connected to the CAN communication system, but the front power seat switch RH does not store or output CAN communication DTCs.

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

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: 10 seconds have elapsed after connection of the battery. The power source voltage of the outer mirror control ECU assembly (for front passenger side) is 10 V or more.	Turn the engine switch on (IG) 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)

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: 10 seconds have elapsed after connection of the battery. The power source voltage of the outer mirror control ECU assembly (for driver side) is 10 V or more.	Turn the engine switch on (IG) and wait at least 10 seconds.	-	DTC is stored until it is cleared using the GTS.

Luggage Closer Motor Assembly / GTS Display "Back Door"

Tech Tips

The luggage closer motor assembly is connected to the CAN communication system, but the luggage closer motor assembly does not store or output CAN communication DTCs.

Multiplex Tilt and Telescopic ECU (w/ Power Tilt and Power Telescopic Steering Column System) / GTS Display "Tilt & Telescopic"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Multiplex Tilt and Telescopic ECU (w/ Power Tilt and Power Telescopic Steering Column System) / GTS Display "Tilt & Telescopic"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0142	Lost Communication with Main Body ECU	The multiplex tilt and telescopic ECU does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	The power source voltage of the multiplex tilt and telescopic ECU is 10 V or more.	Turn the engine switch on (IG) and wait at least 10 seconds.	-	DTC remains stored only while malfunction is occurring.
U0208	Lost Communication with "Seat Control Module A"	The multiplex tilt and telescopic ECU does not receive data from the front power seat switch LH for 10 seconds or more.	The power source voltage of the multiplex tilt and telescopic ECU is 10 V or more.	Turn the engine switch on (IG) and wait at least 10 seconds.	-	DTC remains stored only while malfunction is occurring.

Clearance Warning ECU Assembly / GTS Display "Clearance Sonar"

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 TCM for 5 seconds or more.	Both conditions are met: The engine switch is on (IG) for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the engine switch on (IG) 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 engine switch is on (IG) for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the engine switch on (IG) and wait at least 10 seconds.	-	DTC is stored until it is cleared using the GTS.

Rear Television Camera Assembly (for Radio and Display Type (w/ Parking Assist Monitor System without Parallel Parking Assist Function)) / GTS Display "IPA/Parking Assist Monitor"

Tech Tips

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

Rear Television Camera Assembly (for Radio and Display Type (w/ Parking Assist Monitor System without Parallel Parking Assist Function)) / 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
U0126	Lost Communication with Steering Angle Sensor Module	The rear television camera assembly does not receive data from the steering sensor for 11 seconds or more.	Both conditions are met: The engine switch is on (IG) for 3 seconds or more. The power source voltage of the rear television camera assembly is 5.5 V or more.	Turn the engine switch on (IG) 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 rear television camera assembly does not receive data from the brake actuator assembly (skid control ECU) for 11 seconds or more.	Both conditions are met: The engine switch is on (IG) for 3 seconds or more. The power source voltage of the rear television camera assembly is 5.5 V or more.	Turn the engine switch on (IG) and wait at least 14 seconds.	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	The rear 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 engine switch is on (ACC) for 3 seconds or more. The power source voltage of the rear television camera assembly is 5.5 V or more.	Turn the engine switch on (IG) and wait at least 14 seconds.	-	DTC is stored until it is cleared using the GTS.
U0163	Lost Communication with Navigation Control Module	The rear television camera assembly does not receive data from the radio receiver assembly for 11 seconds or more.	Both conditions are met: The engine switch is on (ACC) for 3 seconds or more. The power source voltage of the rear television camera assembly is 5.5 V or more.	Turn the engine switch on (IG) and wait at least 14 seconds.	-	DTC is stored until it is cleared using the GTS.
U1000*	CAN Communication Failure (Message Registry)	When the engine switch is turned on (IG), a CAN communication malfunction is detected.	The engine switch is on (IG).	Turn the engine switch on (IG).	-	DTC remains stored only while malfunction is occurring.
U1110	Lost Communication with Clearance Sonar Module	The rear television camera assembly does not receive data from the clearance warning ECU assembly for 11 seconds or more.	Both conditions are met: The engine switch is on (IG) for 3 seconds or more. The power source voltage of the rear television camera assembly is 5.5 V or more.	Turn the engine switch on (IG) and wait at least 14 seconds.	-	DTC is stored until it is cleared using the GTS.

Telematics Transceiver (w/ Telematics Transceiver for G-BOOK) / GTS Display "Navigation System"

Tech Tips

This ECU uses the CAN communication system for DTC communication.
The telematics transceiver informs the radio receiver assembly (for Navigation Receiver Type) of stored DTCs through the USB communication line.

Telematics Transceiver (w/ Telematics Transceiver for G-BOOK) / GTS Display "Navigation System"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0140	Lost Communication with Body Control Module	The telematics transceiver does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: The engine switch is on (IG) for 10 seconds or more. The power source voltage of the telematics transceiver is 12 V or more.	Turn the engine switch on (IG) and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Meter ECU Communication	The telematics transceiver does not receive data from the combination meter assembly for 10 seconds or more.	Both conditions are met: The engine switch is on (IG) for 10 seconds or more. The power source voltage of the telematics transceiver is 12 V or more.	Turn the engine switch on (IG) and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0163	Lost Communication with Navigation Control Module	The telematics transceiver does not receive data from the radio receiver assembly for 10 seconds or more.	Both conditions are met: The engine switch is on (IG) for 10 seconds or more. The power source voltage of the telematics transceiver is 12 V or more.	Turn the engine switch on (IG) and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.

Headlight Leveling ECU (Headlight Swivel ECU Assembly) / GTS Display "AFS"

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*: Refer to Automatic Headlight Beam Level Control System Click here.

Headlight Leveling ECU (Headlight Swivel ECU Assembly) / GTS Display "AFS"
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 headlight leveling ECU (headlight swivel ECU assembly) does not send/receive data 10 times in succession.	Both conditions are met: The engine switch is on (IG) for 3 seconds or more. The power source voltage of the headlight leveling ECU (headlight swivel ECU assembly) is 10 V or more.	Turn the engine switch on (IG) and wait at least 13 seconds.	-	DTC is stored until it is cleared using the GTS.
U0100	Lost Communication with ECM / PCM "A"	The headlight leveling ECU (headlight swivel ECU assembly) does not receive data from the ECM for 10 seconds or more.	Both conditions are met: The engine switch is on (IG) for 3 seconds or more. The power source voltage of the headlight leveling ECU (headlight swivel ECU assembly) is 10 V or more.	Turn the engine switch on (IG) and wait at least 13 seconds.	AFS OFF indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Skid Control ECU	The headlight leveling ECU (headlight swivel ECU assembly) does not receive data from the brake actuator assembly (skid control ECU) for 5 seconds or more.	Both conditions are met: The engine switch is on (IG) for 3 seconds or more. The power source voltage of the headlight leveling ECU (headlight swivel ECU assembly) is 10 V or more.	Turn the engine switch on (IG) and wait at least 8 seconds.	AFS OFF indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Main Body ECU	The headlight leveling ECU (headlight swivel 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 engine switch is on (IG) for 3 seconds or more. The power source voltage of the headlight leveling ECU (headlight swivel ECU assembly) is 10 V or more.	Turn the engine switch on (IG) and wait at least 13 seconds.	AFS OFF indicator light flashes.	DTC is stored until it is cleared using the GTS.
U1000*	CAN Communication Failure (Message Registry)	When the engine switch is turned on (IG), a CAN communication malfunction is detected.	Both conditions are met: The engine switch is on (IG) for 3 seconds or more. The power source voltage of the headlight leveling ECU (headlight swivel ECU assembly) is 10 V or more.	Turn the engine switch on (IG) and wait at least 3 seconds.	-	DTC is stored until it is cleared using the GTS.

Engine Stop and Start ECU (for 6AR-FSE) / GTS Display "Stop and Start"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Engine Stop and Start ECU (for 6AR-FSE) / GTS Display "Stop and 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 "A"	The engine stop and start ECU does not receive data from the ECM for 0.8 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 1.8 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0121	Lost Communication with Anti-Lock Brake System (ABS) Control Module	The engine stop and start ECU does not receive data from the brake actuator assembly (skid control ECU) for 2.22 seconds or more.	Both conditions are met: The engine switch is on (IG) for 2.1 seconds or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 4.32 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	The engine stop and start ECU does not receive data from the steering sensor for 0.72 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 1.72 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0131	Lost Communication with Power Steering Control Module	The engine stop and start ECU does not receive data from the power steering ECU with motor assembly for 0.8 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 1.8 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with J/B ECU	The engine stop and start ECU does not receive data from the main body ECU (multiplex network body ECU) for 3.6 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 4.6 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0151	Lost Communication with SRS Airbag ECU	The engine stop and start ECU does not receive data from the airbag sensor assembly for 10.6 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 11.6 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0164	Lost Communication with HVAC Control Module	The engine stop and start ECU does not receive data from the air conditioning amplifier assembly for 10.6 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 11.6 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U1110	Lost Communication with Clearance Sonar Module	The engine stop and start ECU does not receive data from the clearance warning ECU assembly for 10.6 seconds or more.	Both conditions are met: The engine switch is on (IG) for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the engine switch on (IG) and wait at least 11.6 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.

Telematics Transceiver (w/ Telematics Transceiver except G-BOOK) / GTS Display "Telematics"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Telematics Transceiver (w/ Telematics Transceiver except G-BOOK) / GTS Display "Telematics"
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 telematics transceiver does not receive data from the ECM for 15 seconds or more.	The engine switch is on (IG) for 10 seconds or more.	Turn the engine switch on (IG) and wait at least 25 seconds.	-	DTC is stored until it is cleared using the GTS.

DTC COMBINATION TABLE (OPEN OR SHORT IN V BUS, PAST COMMUNICATION ERROR) (for LHD)

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 bus line(s) 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 bus line(s) 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 bus line(s) 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.

-			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	Audio Receiver Assembly Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	○	-
		U0131	-	○	-
		U0142	-	○	-
		U0155	-	○	-
		U0163	-	-	○
	Radio Receiver Assembly*1	U0100	-	-	○
		U0126	-	-	○
		U0129	-	-	○
		U0140	-	-	○
		U0155	-	-	○
		U0164	-	○	○
		U0198	-	-	○
		U1110	-	-	○
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	○	-	-
		U0155	-	-	-
		U0164	-	○	○
		U0198	-	-	-
		U0327	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	ECM (for 2GR-FE)	U0122	-	-	-
	ECM (for 2AR-FE)	U0122	-	-	-
	ECM (for 6AR-FSE)	U012287	-	-	-
	ECM (for 6AR-FSE)	U110387	-	-	-
	Power Steering ECU with Motor Assembly	U0100	-	-	-
	Power Steering ECU with Motor Assembly	U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
		U1103	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U1103	-	-	-
V Bus	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	○	-	-
		U0163	-	-	-
		U0182	-	-	-
	Steering Sensor	-	-	-	-
	Telematics Transceiver	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U0163	-	-	○
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-
		U0124	○	-	-
		U0126	-	-	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Engine Stop and Start ECU	U0100	-	-	-
		U0121	-	-	-
		U0126	-	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0151	○	-	-
		U0164	-	○	-
		U1110	-	-	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0209	-	-	-
		U0230	-	-	-
		U0265	-	-	-
		U1002	-	-	-
		U1115	-	-	-
	Luggage Closer Motor Assembly	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Front Power Seat Switch LH	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-
	Rear Television Camera Assembly	U0126	○	-	-
		U0129	-	-	-
		U0140	-	-	-
		U0163	-	-	○
		U1110	-	-	-
Sub bus 1	Multiplex Tilt and Telescopic ECU	U0142	-	-	-
Sub bus 1	Multiplex Tilt and Telescopic ECU	U0208	-	-	-

Tech Tips

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

-			Trouble Mode (Open in Both CAN Branch Lines)
-			V Bus
Output ECU		Output DTC	Main Body ECU Communication Stop Mode Click here	Clearance Warning ECU Communication Stop Mode Click here	Power Steering ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	○
		U0142	○	-	-
		U0155	-	-	-
		U0163	-	-	-
	Radio Receiver Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U0198	-	-	-
		U1110	-	○	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	○	-	-
		U0101	○	-	-
		U0120	○	-	-
		U0151	○	-	-
		U0155	○	-	-
		U0164	○	-	-
		U0198	○	-	-
		U0327	○	-	-
	Clearance Warning ECU Assembly	U0101	-	○	-
	Clearance Warning ECU Assembly	U0155	-	○	-
	ECM (for 2GR-FE)	U0122	-	-	-
V Bus	ECM (for 2AR-FE)	U0122	-	-	-
	ECM (for 6AR-FSE)	U012287	-	-	-
	ECM (for 6AR-FSE)	U110387	-	-	-
	Power Steering ECU with Motor Assembly	U0100	-	-	○
	Power Steering ECU with Motor Assembly	U0129	-	-	○
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-
		U0142	○	-	-
		U0155	-	-	-
		U1103	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	○	-	-
		U0155	-	-	-
		U1103	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	○
		U0142	○	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
	Steering Sensor	-	-	-	-
	Telematics Transceiver	U0100	-	-	-
		U0140	○	-	-
		U0155	-	-	-
		U0163	-	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	-	-
		U0129	-	-	-
		U0142	○	-	-
	Engine Stop and Start ECU	U0100	-	-	-
		U0121	-	-	-
		U0126	-	-	-
		U0131	-	-	○
		U0140	○	-	-
		U0151	-	-	-
		U0164	-	-	-
		U1110	-	○	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0209	-	-	-
		U0230	-	-	-
		U0265	-	-	-
		U1002	-	-	-
		U1115	-	-	-
	Luggage Closer Motor Assembly	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
Sub bus 1	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Front Power Seat Switch LH	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-
	Rear Television Camera Assembly	U0126	○	-	-
		U0129	○	-	-
		U0140	-	-	-
		U0163	○	-	-
		U1110	○	○	-
	Multiplex Tilt and Telescopic ECU	U0142	-	-	-
	Multiplex Tilt and Telescopic ECU	U0208	-	-	-

Tech Tips

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

-			Trouble Mode (Open in Both CAN Branch Lines)
-			V Bus
Output ECU		Output DTC	Certification ECU Communication Stop Mode Click here	Steering Angle Sensor Communication Stop Mode Click here	Skid Control ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
		U0163	-	-	-
V Bus	Radio Receiver Assembly*1	U0100	-	-	-
		U0126	-	○	-
		U0129	-	-	○
		U0140	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U0198	-	-	-
		U1110	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	○	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U0198	-	-	-
		U0327	○	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	ECM (for 2GR-FE)	U0122	-	-	○
	ECM (for 2AR-FE)	U0122	-	-	○
	ECM (for 6AR-FSE)	U012287	-	-	○
	ECM (for 6AR-FSE)	U110387	-	-	-
	Power Steering ECU with Motor Assembly	U0100	-	-	-
	Power Steering ECU with Motor Assembly	U0129	-	-	○
	Certification ECU (Smart Key ECU Assembly)	U0100	○	-	-
		U0142	○	-	-
		U0155	○	-	-
		U1103	○	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	○	-	-
		U0140	○	-	-
		U0155	○	-	-
		U1103	○	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	○
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
	Steering Sensor	-	-	-	-
	Telematics Transceiver	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U0163	-	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	○
		U0124	-	-	○
		U0126	-	-	○
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	-	-
		U0129	-	-	○
		U0142	-	-	-
V Bus	Engine Stop and Start ECU	U0100	-	-	-
		U0121	-	-	○
		U0126	-	○	-
		U0131	-	-	-
		U0140	-	-	-
		U0151	-	-	-
		U0164	-	-	-
		U1110	-	-	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0209	-	-	-
		U0230	-	-	-
		U0265	-	-	-
		U1002	-	-	-
		U1115	-	-	-
	Luggage Closer Motor Assembly	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Front Power Seat Switch LH	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-
	Rear Television Camera Assembly	U0126	-	-	-
		U0129	-	-	○
		U0140	-	-	-
		U0163	-	-	-
		U1110	-	-	-
	Multiplex Tilt and Telescopic ECU	U0142	-	-	-
	Multiplex Tilt and Telescopic ECU	U0208	-	-	-

Tech Tips

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

-			Trouble Mode (Open in Both CAN Branch Lines)
-			V Bus
Output ECU		Output DTC	DLC3	DCM Communication Stop Mode Click here	AFS ECU Communication Stop Mode Click here	Engine Stop and Start ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0131	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
		U0163	-	-	-	-
	Radio Receiver Assembly*1	U0100	-	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
		U0164	-	-	-	-
		U0198	-	○	-	-
		U1110	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-	-
		U0101	-	-	-	-
		U0120	-	-	-	-
		U0151	-	-	-	-
		U0155	-	-	-	-
		U0164	-	-	-	-
		U0198	-	-	-	-
		U0327	-	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-	-
	ECM (for 2GR-FE)	U0122	-	-	-	-
	ECM (for 2AR-FE)	U0122	-	-	-	-
	ECM (for 6AR-FSE)	U012287	-	-	-	-
	ECM (for 6AR-FSE)	U110387	-	-	-	○
	Power Steering ECU with Motor Assembly	U0100	-	-	-	-
	Power Steering ECU with Motor Assembly	U0129	-	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
		U1103	-	-	-	○
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
		U1103	-	-	-	○
V Bus	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0131	-	-	-	-
		U0142	-	-	-	-
		U0151	-	-	-	-
		U0163	-	-	-	-
		U0182	-	-	○	-
	Steering Sensor	-	-	-	-	-
	Telematics Transceiver	U0100	-	○	-	-
		U0140	-	○	-	-
		U0155	-	○	-	-
		U0163	-	○	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-	-
		U0124	-	-	-	-
		U0126	-	-	-	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	-	○	-
		U0129	-	-	○	-
		U0142	-	-	-	-
	Engine Stop and Start ECU	U0100	-	-	-	-
		U0121	-	-	-	-
		U0126	-	-	-	-
		U0131	-	-	-	-
		U0140	-	-	-	-
		U0151	-	-	-	-
		U0164	-	-	-	-
		U1110	-	-	-	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-	-
		U0200	-	-	-	-
		U0208	-	-	-	-
		U0209	-	-	-	-
		U0230	-	-	-	-
		U0265	-	-	-	-
		U1002	-	-	-	-
		U1115	-	-	-	-
	Luggage Closer Motor Assembly	-	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-	-
	Front Power Seat Switch LH	-	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-	-
	Rear Television Camera Assembly	U0126	-	-	-	-
		U0129	-	-	-	-
		U0140	-	-	-	-
		U0163	-	-	-	-
		U1110	-	-	-	-
Sub bus 1	Multiplex Tilt and Telescopic ECU	U0142	-	-	-	-
Sub bus 1	Multiplex Tilt and Telescopic ECU	U0208	-	-	-	-

Tech Tips

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

-			Trouble Mode (Open in Both CAN Main Bus Lines)
-			V Bus
Output ECU		Output DTC	Combination Meter ECU Communication Stop Mode Click here	CAN Junction Connector LH1 to CAN Junction Connector RH1	ECM Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	○
		U0131	-	○	-
		U0142	-	○	-
		U0155	○	○	-
		U0163	-	-	-
	Radio Receiver Assembly*1	U0100	-	-	○
		U0126	-	○	-
		U0129	-	-	-
		U0140	-	○	-
		U0155	○	○	-
		U0164	-	-	-
		U0198	-	-	-
		U1110	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	○	-
		U0101	-	○	-
		U0120	-	○	-
		U0151	-	-	-
		U0155	○	-	-
		U0164	-	○	-
		U0198	-	○	-
		U0327	-	○	-
	Clearance Warning ECU Assembly	U0101	-	-	○
	Clearance Warning ECU Assembly	U0155	○	○	-
	ECM (for 2GR-FE)	U0122	-	-	○
V Bus	ECM (for 2AR-FE)	U0122	-	-	○
	ECM (for 6AR-FSE)	U012287	-	-	○
	ECM (for 6AR-FSE)	U110387	-	○	○
	Power Steering ECU with Motor Assembly	U0100	-	○	○
	Power Steering ECU with Motor Assembly	U0129	-	○	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	○
		U0142	-	○	-
		U0155	○	○	-
		U1103	-	○	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	○
		U0140	-	○	-
		U0155	○	○	-
		U1103	-	○	-
	Combination Meter Assembly	U0100	○	○	○
		U0129	○	○	-
		U0131	○	-	-
		U0142	○	-	-
		U0151	○	-	-
		U0163	○	○	-
		U0182	○	-	-
	Steering Sensor	-	-	-	-
	Telematics Transceiver	U0100	-	-	○
		U0140	-	○	-
		U0155	○	○	-
		U0163	-	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	○
		U0124	-	○	-
		U0126	-	○	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	○	○
		U0129	-	○	-
		U0142	-	○	-
	Engine Stop and Start ECU	U0100	-	○	○
		U0121	-	○	-
		U0126	-	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0151	-	-	-
		U0164	-	○	-
		U1110	-	○	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0209	-	-	-
		U0230	-	-	-
		U0265	-	-	-
		U1002	-	-	-
		U1115	-	-	-
	Luggage Closer Motor Assembly	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
Sub bus 1	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Front Power Seat Switch LH	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-
	Rear Television Camera Assembly	U0126	-	○	-
		U0129	-	-	-
		U0140	-	○	-
		U0163	-	-	-
		U1110	-	-	-
	Multiplex Tilt and Telescopic ECU	U0142	-	-	-
	Multiplex Tilt and Telescopic ECU	U0208	-	-	-

Tech Tips

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

-			Trouble Mode (CAN Bus Lines Short Circuit or Short to GND)
-			V Bus
Output ECU		Output DTC	CANH - CANL CANH - Ground Short CANL - Ground Short
V Bus	Airbag Sensor Assembly	-	-
	Air Conditioning Amplifier Assembly	U0100	○
		U0131	○
		U0142	○
		U0155	○
		U0163	○
	Radio Receiver Assembly*1	U0100	○
		U0126	○
		U0129	○
		U0140	○
		U0155	○
		U0164	○
		U0198	-
		U1110	○
V Bus	Main Body ECU (Multiplex Network Body ECU)*2	U0100	○
		U0101	○
		U0120	○
		U0151	○
		U0155	○
		U0164	○
		U0198	○
		U0327	○
	Clearance Warning ECU Assembly	U0101	○
	Clearance Warning ECU Assembly	U0155	○
	ECM (for 2GR-FE)	U0122	○
	ECM (for 2AR-FE)	U0122	○
	ECM (for 6AR-FSE)	U012287	○
	ECM (for 6AR-FSE)	U110387	○
	Power Steering ECU with Motor Assembly	U0100	○
	Power Steering ECU with Motor Assembly	U0129	○
	Certification ECU (Smart Key ECU Assembly)	U0100	○
		U0142	○
		U0155	○
		U1103	○
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	○
		U0140	○
		U0155	○
		U1103	○
	Combination Meter Assembly	U0100	○
		U0129	○
		U0131	○
		U0142	○
		U0151	○
		U0163	○
		U0182	○
	Steering Sensor	-	○
	Telematics Transceiver	U0100	○
		U0140	○
		U0155	○
		U0163	○
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	○
		U0124	○
		U0126	○
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	○
		U0129	○
		U0142	○
	Engine Stop and Start ECU	U0100	○
		U0121	○
		U0126	○
		U0131	○
		U0140	○
		U0151	○
		U0164	○
		U1110	○
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-
		U0200	-
		U0208	-
		U0209	-
		U0230	-
		U0265	-
		U1002	-
		U1115	-
	Luggage Closer Motor Assembly	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-
	Front Power Seat Switch LH	-	-
	Front Power Seat Switch RH	-	-
	Rear Television Camera Assembly	U0126	○
		U0129	○
		U0140	○
		U0163	-
		U1110	○
	Multiplex Tilt and Telescopic ECU	U0142	-
	Multiplex Tilt and Telescopic ECU	U0208	-

Tech Tips

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

DTC COMBINATION TABLE (OPEN OR SHORT IN SUB BUS 1, PAST COMMUNICATION ERROR) (for LHD)

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.

-			Trouble Mode (Open in Both CAN Branch Lines)
-			Sub bus 1
Output ECU		Output DTC	Luggage Closer Motor Assembly Click here	Outer Mirror Control ECU Assembly (for Driver Side) Click here	Outer Mirror Control ECU Assembly (for Front Passenger Side) Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
		U0163	-	-	-
	Radio Receiver Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U0198	-	-	-
		U1110	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U0198	-	-	-
		U0327	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	ECM (for 2GR-FE)	U0122	-	-	-
	ECM (for 2AR-FE)	U0122	-	-	-
	ECM (for 6AR-FSE)	U012287	-	-	-
	ECM (for 6AR-FSE)	U110387	-	-	-
V Bus	Power Steering ECU with Motor Assembly	U0100	-	-	-
	Power Steering ECU with Motor Assembly	U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
		U1103	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U1103	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
	Steering Sensor	-	-	-	-
	Telematics Transceiver	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U0163	-	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Engine Stop and Start ECU	U0100	-	-	-
		U0121	-	-	-
		U0126	-	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0151	-	-	-
		U0164	-	-	-
		U1110	-	-	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	○
		U0200	-	○	-
		U0208	-	-	-
		U0209	-	-	-
		U0230	○	-	-
		U0265	-	-	-
		U1002	-	-	-
		U1115	-	-	-
	Luggage Closer Motor Assembly	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
Sub bus 1	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Front Power Seat Switch LH	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-
	Rear Television Camera Assembly	U0126	-	-	-
		U0129	-	-	-
		U0140	-	-	-
		U0163	-	-	-
		U1110	-	-	-
	Multiplex Tilt and Telescopic ECU	U0142	-	-	-
	Multiplex Tilt and Telescopic ECU	U0208	-	-	-

Tech Tips

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

-			Trouble Mode (Open in Both CAN Branch Lines)
-			Sub bus 1
Output ECU		Output DTC	Front Power Seat Switch LH Click here	Front Power Seat Switch RH Click here	Multiplex Tilt and Telescopic ECU Click here	Rear Television Camera Assembly Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0131	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
		U0163	-	-	-	-
V Bus	Radio Receiver Assembly*1	U0100	-	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
		U0164	-	-	-	-
		U0198	-	-	-	-
		U1110	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-	-
		U0101	-	-	-	-
		U0120	-	-	-	-
		U0151	-	-	-	-
		U0155	-	-	-	-
		U0164	-	-	-	-
		U0198	-	-	-	-
		U0327	-	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-	-
	ECM (for 2GR-FE)	U0122	-	-	-	-
	ECM (for 2AR-FE)	U0122	-	-	-	-
	ECM (for 6AR-FSE)	U012287	-	-	-	-
	ECM (for 6AR-FSE)	U110387	-	-	-	-
	Power Steering ECU with Motor Assembly	U0100	-	-	-	-
	Power Steering ECU with Motor Assembly	U0129	-	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
		U1103	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
		U1103	-	-	-	-
	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0131	-	-	-	-
		U0142	-	-	-	-
		U0151	-	-	-	-
		U0163	-	-	-	-
		U0182	-	-	-	-
	Steering Sensor	-	-	-	-	-
	Telematics Transceiver	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
		U0163	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-	-
		U0124	-	-	-	-
		U0126	-	-	-	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	-	-	-
		U0129	-	-	-	-
		U0142	-	-	-	-
V Bus	Engine Stop and Start ECU	U0100	-	-	-	-
		U0121	-	-	-	-
		U0126	-	-	-	-
		U0131	-	-	-	-
		U0140	-	-	-	-
		U0151	-	-	-	-
		U0164	-	-	-	-
		U1110	-	-	-	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-	-
		U0200	-	-	-	-
		U0208	○	-	-	-
		U0209	-	○	-	-
		U0230	-	-	-	-
		U0265	-	-	-	○
		U1002	-	-	-	-
		U1115	-	-	○	-
	Luggage Closer Motor Assembly	-	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-	-
	Front Power Seat Switch LH	-	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-	-
	Rear Television Camera Assembly	U0126	-	-	-	○
		U0129	-	-	-	○
		U0140	-	-	-	○
		U0163	-	-	-	○
		U1110	-	-	-	○
	Multiplex Tilt and Telescopic ECU	U0142	-	-	○	-
	Multiplex Tilt and Telescopic ECU	U0208	-	-	○	-

Tech Tips

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

-			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	CAN Junction Connector LH2 to CAN Junction Connector RH2	CAN Junction Connector RH2 to CAN No. 1 Junction Terminal
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
		U0163	-	-	-
	Radio Receiver Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U0198	-	-	-
		U1110	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U0198	-	-	-
		U0327	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	ECM (for 2GR-FE)	U0122	-	-	-
	ECM (for 2AR-FE)	U0122	-	-	-
	ECM (for 6AR-FSE)	U012287	-	-	-
	ECM (for 6AR-FSE)	U110387	-	-	-
	Power Steering ECU with Motor Assembly	U0100	-	-	-
	Power Steering ECU with Motor Assembly	U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
		U1103	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U1103	-	-	-
V Bus	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
	Steering Sensor	-	-	-	-
	Telematics Transceiver	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U0163	-	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Engine Stop and Start ECU	U0100	-	-	-
		U0121	-	-	-
		U0126	-	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0151	-	-	-
		U0164	-	-	-
		U1110	-	-	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	○	-	-
		U0200	○	○	-
		U0208	○	-	-
		U0209	○	○	-
		U0230	○	-	-
		U0265	○	-	-
		U1002	○	-	-
		U1115	○	-	-
	Luggage Closer Motor Assembly	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	○	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	○	○	-
	Front Power Seat Switch LH	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-
	Rear Television Camera Assembly	U0126	○	-	-
		U0129	○	-	-
		U0140	○	-	-
		U0163	○	-	-
		U1110	○	-	-
Sub bus 1	Multiplex Tilt and Telescopic ECU	U0142	○	-	-
Sub bus 1	Multiplex Tilt and Telescopic ECU	U0208	○	-	-

Tech Tips

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

-			Trouble Mode (CAN Bus Line Short Circuit or Short to GND)
-			Sub bus 1
Output ECU		Output DTC	CANH - CANL CANH - Ground Short CANL - Ground Short
V Bus	Airbag Sensor Assembly	-	-
	Air Conditioning Amplifier Assembly	U0100	-
		U0131	-
		U0142	-
		U0155	-
		U0163	-
	Radio Receiver Assembly*1	U0100	-
		U0126	-
		U0129	-
		U0140	-
		U0155	-
		U0164	-
		U0198	-
		U1110	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-
		U0101	-
		U0120	-
		U0151	-
		U0155	-
		U0164	-
		U0198	-
		U0327	-
	Clearance Warning ECU Assembly	U0101	-
	Clearance Warning ECU Assembly	U0155	-
	ECM (for 2GR-FE)	U0122	-
	ECM (for 2AR-FE)	U0122	-
	ECM (for 6AR-FSE)	U012287	-
	ECM (for 6AR-FSE)	U110387	-
	Power Steering ECU with Motor Assembly	U0100	-
	Power Steering ECU with Motor Assembly	U0129	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-
		U0142	-
		U0155	-
		U1103	-
V Bus	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-
		U0140	-
		U0155	-
		U1103	-
	Combination Meter Assembly	U0100	-
		U0129	-
		U0131	-
		U0142	-
		U0151	-
		U0163	-
		U0182	-
	Steering Sensor	-	-
	Telematics Transceiver	U0100	-
		U0140	-
		U0155	-
		U0163	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-
		U0124	-
		U0126	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-
		U0129	-
		U0142	-
	Engine Stop and Start ECU	U0100	-
		U0121	-
		U0126	-
		U0131	-
		U0140	-
		U0151	-
		U0164	-
		U1110	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	○
		U0200	○
		U0208	○
		U0209	○
		U0230	○
		U0265	○
		U1002	○
		U1115	○
	Luggage Closer Motor Assembly	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	○
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	○
	Front Power Seat Switch LH	-	-
	Front Power Seat Switch RH	-	-
Sub bus 1	Rear Television Camera Assembly	U0126	○
		U0129	○
		U0140	○
		U0163	○
		U1110	○
	Multiplex Tilt and Telescopic ECU	U0142	○
	Multiplex Tilt and Telescopic ECU	U0208	○

Tech Tips

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

DTC COMBINATION TABLE (OPEN OR SHORT IN V BUS, PAST COMMUNICATION ERROR) (for RHD)

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 bus line(s) 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 bus line(s) 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.

-			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	Audio Receiver Assembly Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	○	-
		U0131	-	○	-
		U0142	-	○	-
		U0155	-	○	-
		U0163	-	-	○
	Radio Receiver Assembly*1	U0100	-	-	○
		U0126	-	-	○
		U0129	-	-	○
		U0140	-	-	○
		U0155	-	-	○
		U0164	-	○	○
		U1110	-	-	○
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	○	-	-
		U0155	-	-	-
		U0164	-	○	-
		U0327	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	ECM (for 2GR-FE)	U0122	-	-	-
	ECM (for 2AR-FE)	U0122	-	-	-
	Power Steering ECU with Motor Assembly	U0100	-	-	-
	Power Steering ECU with Motor Assembly	U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
V Bus	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	○	-	-
		U0163	-	-	-
		U0182	-	-	-
	Steering Sensor	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-
		U0124	○	-	-
		U0126	-	-	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0209	-	-	-
		U0230	-	-	-
		U0265	-	-	-
		U1002	-	-	-
		U1115	-	-	-
	Luggage Closer Motor Assembly	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Front Power Seat Switch LH	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-
	Rear Television Camera Assembly	U0126	○	-	-
		U0129	-	-	-
		U0140	-	-	-
		U0163	-	-	○
		U1110	-	-	-
	Multiplex Tilt and Telescopic ECU	U0142	-	-	-
	Multiplex Tilt and Telescopic ECU	U0208	-	-	-

Tech Tips

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

-			Trouble Mode (Open in Both CAN Branch Lines)
-			V Bus
Output ECU		Output DTC	Main Body ECU Communication Stop Mode Click here	AFS ECU Communication Stop Mode Click here	Clearance Warning ECU Communication Stop Mode Click here	Power Steering ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0131	-	-	-	○
		U0142	○	-	-	-
		U0155	-	-	-	-
		U0163	-	-	-	-
	Radio Receiver Assembly*1	U0100	-	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
		U0140	○	-	-	-
		U0155	-	-	-	-
		U0164	-	-	-	-
		U1110	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	○	-	-	-
		U0101	○	-	-	-
		U0120	○	-	-	-
		U0151	○	-	-	-
		U0155	○	-	-	-
		U0164	○	-	-	-
		U0327	○	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	○	-
	Clearance Warning ECU Assembly	U0155	-	-	○	-
	ECM (for 2GR-FE)	U0122	-	-	-	-
	ECM (for 2AR-FE)	U0122	-	-	-	-
	Power Steering ECU with Motor Assembly	U0100	-	-	-	○
	Power Steering ECU with Motor Assembly	U0129	-	-	-	○
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-	-
		U0142	○	-	-	-
		U0155	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-	-
		U0140	○	-	-	-
		U0155	-	-	-	-
V Bus	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0131	-	-	-	○
		U0142	○	-	-	-
		U0151	-	-	-	-
		U0163	-	-	-	-
		U0182	-	○	-	-
	Steering Sensor	-	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-	-
		U0124	-	-	-	-
		U0126	-	-	-	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	○	-	-
		U0129	-	○	-	-
		U0142	○	-	-	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-	-
		U0200	-	-	-	-
		U0208	-	-	-	-
		U0209	-	-	-	-
		U0230	-	-	-	-
		U0265	-	-	-	-
		U1002	-	-	-	-
		U1115	-	-	-	-
	Luggage Closer Motor Assembly	-	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-	-
	Front Power Seat Switch LH	-	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-	-
	Rear Television Camera Assembly	U0126	○	-	-	-
		U0129	○	-	-	-
		U0140	-	-	-	-
		U0163	○	-	-	-
		U1110	○	-	○	-
	Multiplex Tilt and Telescopic ECU	U0142	-	-	-	-
	Multiplex Tilt and Telescopic ECU	U0208	-	-	-	-

Tech Tips

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

-			Trouble Mode (Open in Both CAN Branch Lines)
-			V Bus
Output ECU		Output DTC	Certification ECU Communication Stop Mode Click here	Steering Angle Sensor Communication Stop Mode Click here	Skid Control ECU Communication Stop Mode Click here	DLC3
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0131	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
		U0163	-	-	-	-
	Radio Receiver Assembly*1	U0100	-	-	-	-
		U0126	-	○	-	-
		U0129	-	-	○	-
		U0140	-	-	-	-
		U0155	-	-	-	-
		U0164	-	-	-	-
		U1110	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-	-
		U0101	-	-	-	-
		U0120	○	-	-	-
		U0151	-	-	-	-
		U0155	-	-	-	-
		U0164	-	-	-	-
		U0327	○	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-	-
	ECM (for 2GR-FE)	U0122	-	-	○	-
	ECM (for 2AR-FE)	U0122	-	-	○	-
	Power Steering ECU with Motor Assembly	U0100	-	-	-	-
	Power Steering ECU with Motor Assembly	U0129	-	-	○	-
	Certification ECU (Smart Key ECU Assembly)	U0100	○	-	-	-
		U0142	○	-	-	-
		U0155	○	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	○	-	-	-
		U0140	○	-	-	-
		U0155	○	-	-	-
V Bus	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	○	-
		U0131	-	-	-	-
		U0142	-	-	-	-
		U0151	-	-	-	-
		U0163	-	-	-	-
		U0182	-	-	-	-
	Steering Sensor	-	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	○	-
		U0124	-	-	○	-
		U0126	-	-	○	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	-	-	-
		U0129	-	-	○	-
		U0142	-	-	-	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-	-
		U0200	-	-	-	-
		U0208	-	-	-	-
		U0209	-	-	-	-
		U0230	-	-	-	-
		U0265	-	-	-	-
		U1002	-	-	-	-
		U1115	-	-	-	-
	Luggage Closer Motor Assembly	-	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-	-
	Front Power Seat Switch LH	-	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-	-
	Rear Television Camera Assembly	U0126	-	-	-	-
		U0129	-	-	○	-
		U0140	-	-	-	-
		U0163	-	-	-	-
		U1110	-	-	-	-
	Multiplex Tilt and Telescopic ECU	U0142	-	-	-	-
	Multiplex Tilt and Telescopic ECU	U0208	-	-	-	-

Tech Tips

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

-			Trouble Mode (Open in Both CAN Main Bus Lines)
-			V Bus
Output ECU		Output DTC	Combination Meter ECU Communication Stop Mode Click here	CAN Junction Connector LH1 to CAN Junction Connector RH1	ECM Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	○
		U0131	-	-	-
		U0142	-	-	-
		U0155	○	○	-
		U0163	-	○	-
	Radio Receiver Assembly*1	U0100	-	○	○
		U0126	-	-	-
		U0129	-	-	-
		U0140	-	○	-
		U0155	○	-	-
		U0164	-	○	-
		U1110	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	○
		U0101	-	-	○
		U0120	-	○	-
		U0151	-	-	-
		U0155	○	○	-
		U0164	-	-	-
		U0327	-	○	-
	Clearance Warning ECU Assembly	U0101	-	○	○
	Clearance Warning ECU Assembly	U0155	○	-	-
	ECM (for 2GR-FE)	U0122	-	○	○
	ECM (for 2AR-FE)	U0122	-	○	○
	Power Steering ECU with Motor Assembly	U0100	-	-	○
	Power Steering ECU with Motor Assembly	U0129	-	○	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	○	-
		U0142	-	○	-
		U0155	○	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	○	-
		U0140	-	○	-
		U0155	○	-	-
V Bus	Combination Meter Assembly	U0100	○	○	○
		U0129	○	-	-
		U0131	○	○	-
		U0142	○	○	-
		U0151	○	○	-
		U0163	○	-	-
		U0182	○	-	-
	Steering Sensor	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	○
		U0124	-	○	-
		U0126	-	-	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	○	○
		U0129	-	-	-
		U0142	-	○	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-
		U0200	-	-	-
		U0208	-	-	-
		U0209	-	-	-
		U0230	-	-	-
		U0265	-	-	-
		U1002	-	-	-
		U1115	-	-	-
	Luggage Closer Motor Assembly	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Front Power Seat Switch LH	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-
	Rear Television Camera Assembly	U0126	-	-	-
		U0129	-	○	-
		U0140	-	-	-
		U0163	-	-	-
		U1110	-	○	-
	Multiplex Tilt and Telescopic ECU	U0142	-	-	-
	Multiplex Tilt and Telescopic ECU	U0208	-	-	-

Tech Tips

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

-			Trouble Mode (CAN Bus Lines Short Circuit or Short to GND)
-			V Bus
Output ECU		Output DTC	CANH - CANL CANH - Ground Short CANL - Ground Short
V Bus	Airbag Sensor Assembly	-	-
	Air Conditioning Amplifier Assembly	U0100	○
		U0131	○
		U0142	○
		U0155	○
		U0163	○
	Radio Receiver Assembly*1	U0100	○
		U0126	○
		U0129	○
		U0140	○
		U0155	○
		U0164	○
		U1110	○
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	○
		U0101	○
		U0120	○
		U0151	○
		U0155	○
		U0164	○
		U0327	○
	Clearance Warning ECU Assembly	U0101	○
	Clearance Warning ECU Assembly	U0155	○
	ECM (for 2GR-FE)	U0122	○
	ECM (for 2AR-FE)	U0122	○
	Power Steering ECU with Motor Assembly	U0100	○
	Power Steering ECU with Motor Assembly	U0129	○
	Certification ECU (Smart Key ECU Assembly)	U0100	○
		U0142	○
		U0155	○
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	○
		U0140	○
		U0155	○
	Combination Meter Assembly	U0100	○
		U0129	○
		U0131	○
		U0142	○
		U0151	○
		U0163	○
		U0182	○
	Steering Sensor	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	○
		U0124	○
		U0126	○
V Bus	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	○
		U0129	○
		U0142	○
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-
		U0200	-
		U0208	-
		U0209	-
		U0230	-
		U0265	-
		U1002	-
		U1115	-
	Luggage Closer Motor Assembly	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-
	Front Power Seat Switch LH	-	-
	Front Power Seat Switch RH	-	-
	Rear Television Camera Assembly	U0126	○
		U0129	○
		U0140	○
		U0163	-
		U1110	○
	Multiplex Tilt and Telescopic ECU	U0142	-
	Multiplex Tilt and Telescopic ECU	U0208	-

Tech Tips

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

DTC COMBINATION TABLE (OPEN OR SHORT IN SUB BUS 1, PAST COMMUNICATION ERROR) (for RHD)

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.

-			Trouble Mode (Open in Both CAN Branch Lines)
-			Sub bus 1
Output ECU		Output DTC	Luggage Closer Motor Assembly Click here	Outer Mirror Control ECU Assembly (for Driver Side) Click here	Outer Mirror Control ECU Assembly (for Front Passenger Side) Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
		U0163	-	-	-
	Radio Receiver Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U1110	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U0327	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	ECM (for 2GR-FE)	U0122	-	-	-
	ECM (for 2AR-FE)	U0122	-	-	-
	Power Steering ECU with Motor Assembly	U0100	-	-	-
	Power Steering ECU with Motor Assembly	U0129	-	-	-
V Bus	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
	Steering Sensor	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	○	-
		U0200	-	-	○
		U0208	-	-	-
		U0209	-	-	-
		U0230	○	-	-
		U0265	-	-	-
		U1002	-	-	-
		U1115	-	-	-
	Luggage Closer Motor Assembly	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-
	Front Power Seat Switch LH	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-
	Rear Television Camera Assembly	U0126	-	-	-
		U0129	-	-	-
		U0140	-	-	-
		U0163	-	-	-
		U1110	-	-	-
	Multiplex Tilt and Telescopic ECU	U0142	-	-	-
	Multiplex Tilt and Telescopic ECU	U0208	-	-	-

Tech Tips

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

-			Trouble Mode (Open in Both CAN Branch Lines)
-			Sub bus 1
Output ECU		Output DTC	Front Power Seat Switch LH Click here	Front Power Seat Switch RH Click here	Multiplex Tilt and Telescopic ECU Click here	Rear Television Camera Assembly Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0131	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
		U0163	-	-	-	-
	Radio Receiver Assembly*1	U0100	-	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
		U0164	-	-	-	-
		U1110	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-	-
		U0101	-	-	-	-
		U0120	-	-	-	-
		U0151	-	-	-	-
		U0155	-	-	-	-
		U0164	-	-	-	-
		U0327	-	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-	-
	ECM (for 2GR-FE)	U0122	-	-	-	-
	ECM (for 2AR-FE)	U0122	-	-	-	-
	Power Steering ECU with Motor Assembly	U0100	-	-	-	-
	Power Steering ECU with Motor Assembly	U0129	-	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
V Bus	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0131	-	-	-	-
		U0142	-	-	-	-
		U0151	-	-	-	-
		U0163	-	-	-	-
		U0182	-	-	-	-
	Steering Sensor	-	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-	-
		U0124	-	-	-	-
		U0126	-	-	-	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	-	-	-
		U0129	-	-	-	-
		U0142	-	-	-	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	-	-	-	-
		U0200	-	-	-	-
		U0208	-	○	-	-
		U0209	○	-	-	-
		U0230	-	-	-	-
		U0265	-	-	-	○
		U1002	-	-	-	-
		U1115	-	-	○	-
	Luggage Closer Motor Assembly	-	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	-	-	-	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	-	-	-	-
	Front Power Seat Switch LH	-	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-	-
	Rear Television Camera Assembly	U0126	-	-	-	○
		U0129	-	-	-	○
		U0140	-	-	-	○
		U0163	-	-	-	○
		U1110	-	-	-	○
	Multiplex Tilt and Telescopic ECU	U0142	-	-	○	-
	Multiplex Tilt and Telescopic ECU	U0208	-	-	○	-

Tech Tips

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

-			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	CAN Junction Connector LH2 to CAN Junction Connector RH2	CAN junction connector RH2 to CAN No. 1 Junction Terminal
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
		U0163	-	-	-
	Radio Receiver Assembly*1	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U1110	-	-	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U0327	-	-	-
	Clearance Warning ECU Assembly	U0101	-	-	-
	Clearance Warning ECU Assembly	U0155	-	-	-
	ECM (for 2GR-FE)	U0122	-	-	-
	ECM (for 2AR-FE)	U0122	-	-	-
	Power Steering ECU with Motor Assembly	U0100	-	-	-
	Power Steering ECU with Motor Assembly	U0129	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
V Bus	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U0182	-	-	-
	Steering Sensor	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-
		U0124	-	-	-
		U0126	-	-	-
	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	○	○	-
		U0200	○	-	-
		U0208	○	○	-
		U0209	○	-	-
		U0230	○	○	-
		U0265	○	-	-
		U1002	-	-	-
		U1115	○	○	-
	Luggage Closer Motor Assembly	-	-	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	○	○	-
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	○	-	-
	Front Power Seat Switch LH	-	-	-	-
	Front Power Seat Switch RH	-	-	-	-
	Rear Television Camera Assembly	U0126	○	-	-
		U0129	○	-	-
		U0140	○	-	-
		U0163	○	-	-
		U1110	○	-	-
	Multiplex Tilt and Telescopic ECU	U0142	○	○	-
	Multiplex Tilt and Telescopic ECU	U0208	-	-	-

Tech Tips

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

-			Trouble Mode (CAN Bus Line Short Circuit or Short to GND)
-			Sub bus 1
Output ECU		Output DTC	CANH - CANL CANH - Ground Short CANL - Ground Short
V Bus	Airbag Sensor Assembly	-	-
	Air Conditioning Amplifier Assembly	U0100	-
		U0131	-
		U0142	-
		U0155	-
		U0163	-
	Radio Receiver Assembly*1	U0100	-
		U0126	-
		U0129	-
		U0140	-
		U0155	-
		U0164	-
		U1110	-
	Main Body ECU (Multiplex Network Body ECU)*2	U0100	-
		U0101	-
		U0120	-
		U0151	-
		U0155	-
		U0164	-
		U0327	-
	Clearance Warning ECU Assembly	U0101	-
	Clearance Warning ECU Assembly	U0155	-
	ECM (for 2GR-FE)	U0122	-
	ECM (for 2AR-FE)	U0122	-
	Power Steering ECU with Motor Assembly	U0100	-
	Power Steering ECU with Motor Assembly	U0129	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-
		U0142	-
		U0155	-
	Certification ECU (Smart Key ECU Assembly) (Power source switching function)	U0100	-
		U0140	-
		U0155	-
	Combination Meter Assembly	U0100	-
		U0129	-
		U0131	-
		U0142	-
		U0151	-
		U0163	-
		U0182	-
	Steering Sensor	-	-
	Brake Actuator Assembly (Skid Control ECU)*1	U0100	-
		U0124	-
		U0126	-
V Bus	Headlight Leveling ECU (Headlight Swivel ECU Assembly)*1	U0100	-
		U0129	-
		U0142	-
Sub bus 1	Main Body ECU (Multiplex Network Body ECU)*2	U0199	○
		U0200	○
		U0208	○
		U0209	○
		U0230	○
		U0265	○
		U1002	○
		U1115	○
	Luggage Closer Motor Assembly	-	-
	Outer Mirror Control ECU Assembly (for Driver Side)	U0142	○
	Outer Mirror Control ECU Assembly (for Front Passenger Side)	U0142	○
	Front Power Seat Switch LH	-	-
	Front Power Seat Switch RH	-	-
	Rear Television Camera Assembly	U0126	○
		U0129	○
		U0140	○
		U0163	○
		U1110	○
	Multiplex Tilt and Telescopic ECU	U0142	○
	Multiplex Tilt and Telescopic ECU	U0208	○

Tech Tips

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 maybe 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

The following 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 Click here. If no problems are found, check the following waveforms.
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 the Data List)	Data Received by (Cannot be Checked in the Data List)	Relevant Data List Item [Selected System]
Accelerator position	ECM (2AR-FE/2GR-FE/6AR-FSE)	Brake actuator assembly (skid control ECU) Engine stop and start ECU	Radio receiver assembly	Accelerator Position (for 2AR-FE) [Engine and ECT] Accelerator Position (for 2GR-FE) [Engine] Accelerator Position (for 6AR-FSE) [Engine] Accelerator Opening Angle % [ABS/VSC/TRC] Accelerator Position [Stop and Start]
Engine speed	ECM (2AR-FE/2GR-FE/6AR-FSE)	Power steering ECU with motor assembly Brake actuator assembly (skid control ECU) Combination meter assembly Certification ECU (smart key ECU assembly) Engine stop and start ECU	Airbag sensor assembly Air conditioning amplifier assembly Radio receiver assembly Main body ECU (multiplex network body ECU) Telematics transceiver (for G-BOOK)	Engine Speed (for 2AR-FE) [Engine and ECT] Engine Speed (for 2GR-FE) [Engine] Engine Speed (for 6AR-FSE) [Engine] Engine Revolution [EMPS] Engine Revolutions [ABS/VSC/TRC] Engine Rpm [Combination Meter] Engine Speed [Starting Control] Engine Spd (ECM) [Stop and Start]
Engine coolant temperature	ECM (2AR-FE/2GR-FE/6AR-FSE)	Air conditioning amplifier assembly Combination meter assembly Engine stop and start ECU	Radio receiver assembly	Coolant Temp (for 2AR-FE) [Engine and ECT] Coolant Temp (for 2GR-FE) [Engine] Coolant Temperature (for 6AR-FSE) [Engine] Engine Coolant Temp [Air Conditioner] Coolant Temperature [Combination Meter] Coolant Temp [Stop and Start]
Vehicle speed	Brake actuator assembly (skid control ECU)	ECM (2AR-FE/2GR-FE/6AR-FSE) Power steering ECU with motor assembly Combination meter assembly*3 Radio receiver assembly Rear television camera assembly Engine stop and start ECU	Airbag sensor assembly Telematics transceiver (for G-BOOK)	Vehicle Speed [ABS/VSC/TRC] Vehicle Speed (for 2GR-FE) [Engine] Vehicle Speed (for 6AR-FSE) [Engine] Vehicle Speed (for 2AR-FE) [Engine and ECT] Meter Vehicle Velocity [EMPS] Vehicle Speed Meter [Combination Meter] Vehicle Speed [Navigation System] Wheel Speed Sensor (4wheel) [IPA/Parking Assist Monitor] Vehicle Spd 1 (ABS/VSC) [Stop and Start]
Vehicle speed	Combination meter assembly*3	Clearance warning ECU assembly Certification ECU (smart key ECU assembly) Front power seat switch LH Front power seat switch RH Multiplex tilt and telescopic ECU	Air conditioning amplifier assembly Main body ECU (multiplex network body ECU) Luggage closer motor assembly Telematics transceiver (for G-BOOK) Airbag sensor assembly	Vehicle Speed Meter [Combination Meter] Vehicle Speed Info [Clearance Sonar] Vehicle Speed Signal [Power Source Control] Vehicle Speed [Driver Seat] Vehicle Speed [Passenger Seat] Freeze Speed Info [Tilt & Telescopic]
Wheel speed	Brake actuator assembly (skid control ECU)	Headlight leveling ECU (headlight swivel ECU assembly) Power steering ECU with motor assembly	ECM (2AR-FE/2GR-FE/6AR-FSE) Airbag sensor assembly Engine stop and start ECU	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 [AFS] FL Wheel Speed [AFS] Wheel Speed Right [EMPS] Wheel Speed Left [EMPS]
Shift position	ECM (2AR-FE/2GR-FE/6AR-FSE)	Clearance warning ECU assembly Radio receiver assembly Certification ECU (smart key ECU assembly) Brake actuator assembly (skid control ECU) Front power seat switch LH Front power seat switch RH Engine stop and start ECU	Airbag sensor assembly Combination meter assembly*2 Main body ECU (multiplex network body ECU) Luggage closer motor assembly Rear television camera assembly Telematics transceiver (for G-BOOK)	Neutral Position SW Signal (for 2AR-FE) [Engine and ECT] Neutral Position SW Signal (for 2GR-FE) [Engine] Neutral Position SW (for 6AR-FSE) [Engine] Parking Signal [Clearance Sonar] Reverse Signal [Clearance Sonar] Reverse signal [Navigation System] Shift P Signal [Power Source Control] Shift Lever Position [ABS/VSC/TRC] P Switch [Driver Seat] P Switch [Passenger Seat] Shift Position [Stop and Start]
Ambient temperature	Air conditioning amplifier assembly	ECM (2AR-FE/2GR-FE/6AR-FSE) Combination meter assembly Engine stop and start ECU	Main body ECU (multiplex network body ECU) Radio receiver assembly Telematics transceiver (for G-BOOK)	Ambient Temp for A/C (for 2GR-FE) [Engine] Ambient Temp for A/C (for 6AR-FSE) [Engine] Ambient Temp for A/C (for 2AR-FE) [Engine and ECT] Ambient Temperature [Combination Meter] Ambient Temp Sensor [Air Conditioner] Ambient Temp Sensor [Stop and Start]
Driver door courtesy switch	Main body ECU (multiplex network body ECU)	Engine stop and start ECU	Certification ECU (smart key ECU assembly) Combination meter assembly*2 Radio receiver assembly Telematics transceiver (for G-BOOK)	FL Door Courtesy SW [Main Body] D Courtesy Switch Signal [Stop and Start]
Steering angle sensor	Steering sensor	Power steering ECU with motor assembly Brake actuator assembly (skid control ECU)	Airbag sensor assembly Radio receiver assembly Rear television camera assembly ECM (2AR-FE/2GR-FE/6AR-FSE)	Steering Angle Velocity [EMPS] Steering Angle Sensor [ABS/VSC/TRC]
Yaw rate sensor	Airbag sensor assembly	Brake actuator assembly (skid control ECU)	Power steering ECU with motor assembly	Yaw Rate Sensor [ABS/VSC/TRC]
Deceleration sensor	Airbag sensor assembly	Brake actuator assembly (skid control ECU)	ECM (2AR-FE/2GR-FE/6AR-FSE) Power steering ECU with motor assembly	Deceleration Sensor [ABS/VSC/TRC] Deceleration Sensor2 [ABS/VSC/TRC]
Driver seat buckle switch signal	Airbag sensor assembly	-	Main body ECU (multiplex network body ECU) Telematics transceiver (for G-BOOK)	Left Side Buckle SW [SRS Airbag] (for LHD) Right Side Buckle SW [SRS Airbag] (for RHD)
Driver seat buckle switch signal	Main body ECU (multiplex network body ECU)*4	-	Combination meter assembly Telematics transceiver (for G-BOOK)	-
Passenger side buckle switch signal	Airbag sensor assembly	Combination meter assembly	Telematics transceiver (for G-BOOK)	P-Seatbelt Buckle SW [Combination Meter]
Side turn signal	Combination meter assembly	-	-	Turn Signal Switch (Left) [Combination Meter] Turn Signal Switch (Right) [Combination Meter]
Engine switch condition	Main body ECU (multiplex network body ECU)	Front power seat switch LH Front power seat switch RH Multiplex tilt and telescopic ECU Luggage closer motor assembly	Outer mirror control ECU assembly (for driver side) Outer mirror control ECU assembly (for front passenger side) Certification ECU (smart key ECU assembly) Rear television camera assembly Telematics transceiver (for G-BOOK)	IG SW [Main Body] Ignition Switch [Driver Seat] Ignition Switch [Passenger Seat] IG Switch (CAN) [Tilt & Telescopic] IG SW [Back Door]
Headlight (high beam)	Main body ECU (multiplex network body ECU)	Headlight leveling ECU (headlight swivel ECU assembly)	Combination meter assembly*2 Air conditioning amplifier assembly	Dimmer SW [Main Body] Headlight High Beam State [AFS]
Combination meter assembly power source voltage*1	Combination meter assembly	-	-	+B Voltage Value [Combination Meter]
Power steering ECU with motor assembly power source voltage*1	Power steering ECU with motor assembly	-	-	IG Power Supply [EMPS]
Solar sensor*1	Air conditioning amplifier assembly	-	-	Solar Sensor (D Side) [Air Conditioner]
Engine switch condition*1	Certification ECU (smart key ECU assembly)	-	-	Ignition Switch [Entry&Start]
Clearance sonar main switch*1	Clearance warning ECU assembly	-	-	Main Switch [Clearance Sonar]
ECM power source voltage*1	ECM (2AR-FE/2GR-FE/6AR-FSE)	-	-	Battery Voltage (for 2GR-FE) [Engine] Battery Voltage (for 2AR-FE) [Engine and ECT] Battery Voltage (for 6AR-FSE) [Engine]
Engine stop and start ECU power source voltage*1	Engine stop and start ECU	-	-	Battery Voltage [Stop and Start]
Radio receiver assembly power source voltage*1	Radio receiver assembly	-	-	Battery Voltage [Navigation System]
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] (for LHD) +B Voltage Input Value [Mirror R] (for RHD)
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] (for LHD) +B Voltage Input Value [Mirror L] (for RHD)
Front power seat switch LH power source voltage*1	Front power seat switch LH	-	-	Power Voltage [Driver Seat] (for LHD) Power Voltage [Passenger Seat] (for RHD)
Front power seat switch RH power source voltage*1	Front power seat switch RH	-	-	Power Voltage [Passenger Seat] (for LHD) Power Voltage [Driver Seat] (for RHD)
Tilt up switch condition*1	Multiplex tilt and telescopic ECU	-	-	Tilt Up Switch [Tilt & Telescopic]
Door control switch condition*1	Luggage closer motor assembly	-	-	PBD Close SW [Back Door]

*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.

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

Details of relevant Data List items (Selected system: Engine and ECT) (for 2AR-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.
The actual values may differ from the values listed in the chart under "Results of real-vehicle check" due to climate, weather conditions, etc.
The values listed under "Results of real-vehicle check" are those of an inspection performed in NORMAL mode. The actual values may differ if inspected in ECO or SPORT mode.

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 engine switch off.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
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".

Engine and ECT
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	Engine 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 accelerator pedal position sensor No. 1 as 0% and the fully depressed position as 100%.
Neutral Position SW Signal	Park/Neutral position switch assembly 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.
The actual values may differ from the values listed in the chart under "Results of real-vehicle check" due to climate, weather conditions, etc.
The values listed under "Results of real-vehicle check" are those of an inspection performed in NORMAL mode. The actual values may differ if inspected in ECO or SPORT mode.

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 engine switch off.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List.

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

Engine
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. To accurately confirm whether the vehicle was stopped or not, use "SPD (NO)", which is the automatic transaxle output speed.
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	Engine 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 accelerator pedal position sensor No. 1 as 0% and the fully depressed position as 100%.
Neutral Position SW Signal	Park/Neutral position switch/ 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 6AR-FSE)

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 engine switch off.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List.

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

Engine
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. There is a delay in when the vehicle speed data 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 (shift lever in P, engine warmed up and A/C off)	When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed.
Coolant Temperature	Engine 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 higher than 135°C (275°F), the sensor circuit is open or shorted. Check if the engine overheats when the value indicated is higher than 135°C (275°F).
Battery Voltage	Battery voltage/ Min.: 0 V, Max.: 65.5 V	11 to 14 V: Engine switch on (IG)	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	Park/Neutral position switch/ 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)

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

Warm up the engine.
Turn the engine switch off.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
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".

ABS/VSC/TRC
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Shift Lever Position	Shift lever position information / P,N, R, D/M, 1st-6th/B or Fail	Actual shift lever position	-
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

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 engine switch off.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Chassis / EMPS / Data List.

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

EMPS
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
Meter Vehicle Velocity		No significant fluctuation	Engine running and vehicle driven at a constant speed
Wheel Speed Right	Rear wheel speed right/ Min.: 0 km/h (0 MPH) Max.: 255 km/h (158 MPH)	0 km/h (0 MPH)	Engine running and vehicle stopped
Wheel Speed Right		No significant fluctuation	Engine running and vehicle driven at a constant speed
Wheel Speed Left	Rear wheel speed left/ Min.: 0 km/h (0 MPH) Max.: 255 km/h (158 MPH)	0 km/h (0 MPH)	Engine running and vehicle stopped
Wheel Speed Left		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
IG Power Supply	IG power source voltage/ Min.: 0.0000 V Max.: 20.1531 V	8 to 16 V	Engine switch on (IG)
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

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

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

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
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".

Navigation System
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 not in 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: Clearance Sonar)

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

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the clearance sonar main switch 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".

Clearance Sonar
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Main Switch	Clearance sonar main switch/OFF or ON	OFF: Clearance sonar main switch off ON: Clearance sonar main switch 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 (9.3 mph) or more (when accelerating) or 10 km/h (6.2 mph) or more (when decelerating) Snr Work: Vehicle speed less than 15 km/h (9.3 mph) (when accelerating) or less than 10 km/h (6.2 mph) (when decelerating)	-

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 vehicle engine switch off, connect the GTS to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select the Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
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".

Entry&Start
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Ignition Switch	Engine switch on (IG) / ON or OFF	ON: Engine switch on (IG) OFF: Engine switch off	Displays whether the IG power source signal input is on or off. Use this Data List item to help determine the cause when all smart entry and start system/wireless functions do not operate. If the electrical key transmitter sub-assembly is brought inside the vehicle and the engine switch is pressed twice without depressing the brake pedal, the engine switch will turn on (IG). At this time, the key ID code transmitted from the electrical key transmitter sub-assembly and the key ID code stored in the certification ECU (smart key ECU assembly) are compared, and the S code stored in the certification ECU (smart key ECU assembly) and the code stored in the ID code box (immobiliser code ECU) are compared, and if all codes match, the power source mode is considered on (IG) at that time.

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.

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
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".

Power Source Control
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Shift P Signal	Shift position P/ON or OFF	ON: Shift lever in P OFF: Shift lever not in P	Use this item to determine if the shift position switch is malfunctioning. The engine cannot be started when this item is OFF.
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.

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
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".

Starting Control
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Engine Speed	Engine speed/0 to 16383 r/min	Fluctuates in accordance with engine speed	-

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

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

Warm up the engine.
Turn the engine switch off.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
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".

Combination Meter
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
P-Seatbelt Buckle SW	Front passenger seat belt buckle switch/OFF or ON	OFF: Front passenger seat belt fastened (warning light off)	-
P-Seatbelt Buckle SW	Front passenger seat belt buckle switch/OFF or ON	ON: Front passenger seat belt unfastened (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 engine speed	-
Coolant Temperature	Engine coolant temperature/Min.: 0°C (32°F), Max.: 127.5°C (261.5°F)	After warming up: 75 to 100°C (167 to 212°F)	-
+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)
Turn Signal Switch (Right)	RH turn signal switch/OFF or ON	OFF: RH turn switch off	-
Turn Signal Switch (Right)	RH turn signal switch/OFF or ON	ON: RH turn switch on	-
Turn Signal Switch (Left)	LH turn signal switch/OFF or ON	OFF: LH turn switch off	-
Turn Signal Switch (Left)	LH turn signal switch/OFF or ON	ON: LH turn switch on	-

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

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.

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
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".

Air Conditioner
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Ambient Temp Sensor	Ambient temperature 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 solar sensor (automatic light control sensor) / Min.: 0 Max.: 255	Driver side solar sensor (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	-

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.

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
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".

Main Body
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
FL Door Courtesy SW	Front door courtesy light switch LH signal/ON or OFF	ON: Front LH door open OFF: Front LH door closed	-
IG SW	Engine switch on (IG) signal/ON or OFF	ON: Engine switch on (IG) OFF: Engine switch off	-
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	-

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

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Mirror L or Mirror R / Data List.

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

Mirror L or Mirror R
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: 19.98 V	11 to 14 V	-

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.

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
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".

Driver Seat
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) signal received OFF: Engine switch off signal not received	-
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 (for driver) / min: 0.95 V, max: 20.84 V	Within range from 11 V to 14 V	-

Details of relevant Data List items (Selected system: Passenger 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.

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Passenger Seat / Data List.

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

Passenger Seat
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) signal received OFF: Engine switch off signal not received	-
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 (for front passenger) / min: 0.95 V, max: 20.84 V	Within range from 11 V to 14 V	-

Details of relevant Data List items (Selected system: Tilt & Telescopic)

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 engine switch off.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Tilt & Telescopic / Data List.

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

Tilt & Telescopic
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Tilt Up Switch	Input state of tilt up switch/ ON or OFF	ON: Tilt up switch activated OFF: Tilt up switch not activated	-
Freeze Speed Info	Vehicle speed data/ Min.: 0 km/h (0 mph) Max.: 255 km/h (158 mph)	Stop → Drive → Stop	0 km/h (0 mph) → Same speed as indicated on speedometer → 0 km/h (0 mph)
IG Switch (CAN)	Communication state of engine switch/ ON or OFF	ON: Communication normal OFF: Communication interrupted	-

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

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, sensor, 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.

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
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".

Back Door
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
PBD Close SW	Door control switch signal / ON or OFF	ON: Door control switch is on OFF: Door control switch is off	When this item is abnormal, there is a problem with the door control switch or related parts.
IG SW	Engine switch on (IG) / ON or OFF	ON: Engine switch on (IG) OFF: Engine switch off	"OFF" is also displayed for this item when the engine switch is on (ACC).

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 engine switch off.
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
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".

SRS Airbag
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Left side Buckle SW	LH Side Buckle SW/ Unset: Seat belt is not fastened Set: Seat belt is fastened NG: Data is not determined	Unset/Set	for LHD
Right side Buckle SW	RH Side Buckle SW/ Unset: Seat belt is not fastened Set: Seat belt is fastened NG: Data is not determined	Unset/Set	for RHD

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

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

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
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".

IPA/Parking Assist Monitor
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: AFS)

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

Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / AFS / Data List.

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

AFS
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
FR Wheel Speed	Front right wheel speed/0.00 to 327.67 km/h (203.61 mph)	Condition can be displayed	-
FL Wheel Speed	Front left wheel speed/0.00 to 327.67 km/h (203.61 mph)	Condition can be displayed	-
Headlight High Beam State	High beam headlight state/ON or OFF	ON: High beam headlights on OFF: High beam headlights off	-

Details of relevant Data List items (Selected system: Stop and Start)

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 engine switch off.
Connect the GTS to the DLC3.
Start the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Stop and Start / Data List.

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

Stop and Start
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Coolant Temp	Engine coolant temperature: Min.: 16°C (60.8°F), Max.: 127°C (260.6°F)	75 to 95°C (167 to 203°F): Idling after engine warmed up	This is sent from the ECM.
Engine Spd (ECM)	Engine speed signal from ECM via CAN communication: Min.: -25600 rpm, Max.: 12800 rpm	750 to 850 rpm: When idling after warm-up, shift lever in N and no load	This is sent from the ECM.
Battery Voltage	Battery voltage: Min.: 0 V, Max.: 20 V	9 to 14 V: Idling	-
D Courtesy Switch Signal	Driver door courtesy switch signal: ON/OFF	ON: Driver side door opened OFF: Driver side door closed	-
Vehicle Spd 1 (ABS/VSC)	Vehicle speed signal from skid control ECU (brake actuator assembly) via CAN communication: Min.: 0 km/h (0 mph), Max.: 327.67 km/h (203.6 mph)	0 km/h (0 mph): Vehicle is stopped	-
Ambient Temp Sensor	Ambient temperature: Min.: -80°C (-112°F), Max.: 79.9°C (175.8°F)	Close to ambient temperature	-
Accelerator Position	Accelerator pedal position: Min.: 0%, Max.: 127.5%	Actual accelerator pedal position	-
Shift Position	Shift lever position: Unset/P/R/N/D/S	Shift lever position	-