CAN COMMUNICATION SYSTEM DIAGNOSIS SYSTEM

ECUS OR SENSORS WHICH COMMUNICATE THROUGH CAN COMMUNICATION SYSTEM
1. V Bus
  1. ECM
  2. Brake actuator assembly (Skid control ECU)
  3. Main body ECU (Multiplex network body ECU)
  4. Air conditioning amplifier assembly
  5. Power steering ECU with motor assembly*7
  6. Power steering ECU assembly*8*9
  7. Smart key ECU assembly (Certification ECU)*1
  8. Airbag sensor assembly
  9. Steering sensor
  10. Clearance warning ECU assembly*2
  11. Network gateway ECU*3
  12. Combination meter assembly
  13. Navigation receiver assembly*4
  14. Navigation ECU sub-assembly*5
  15. Radio and display receiver assembly*6
2. Sub Bus 2*3
  1. Network gateway ECU
  2. Blind spot monitor sensor RH
    Tech Tips
    - *1: w/ Smart key system
    - *2: w/ Intuitive parking assist system
    - *3 w/ Blind spot monitor system
    - *4: for Navigation receiver type
    - *5: for Radio and display type w/ intuitive parking assist system
    - *6: for Radio and display type w/o intuitive parking assist system
    - *7: for 2AR w/ wireless door lock system
    - *8: for 2AR w/o wireless door lock system
    - *9: for 2GR-FE

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

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

Tech Tips

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

ECU/Sensor Name	Techstream Display	Applicability
ECM	ECM (Engine)	Installed on all vehicles
Network Gateway ECU	CAN Gateway1	Vehicles with blind spot monitor system
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 assembly1 Power steering ECU assembly2*3	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
Smart key ECU assembly (Certification ECU)	Certification (Smart)	Vehicles with smart key system
Air conditioning amplifier assembly	Air Conditioning Amplifier	Installed on all vehicles
Navigation receiver assembly	Display and Navigation (AVN1)	Vehicles with navigation system
Navigation ECU sub-assembly	Display and Navigation (AVN1)	Vehicles with radio and display type w/ intuitive parking assist system
Radio and display receiver assembly	Display and Navigation (AVN1)	Vehicles with radio and display type w/o intuitive parking assist system
Clearance warning ECU assembly	Clearance warning (Intuitive Parking Assist2)	Vehicles with intuitive parking assist sensor system
Blind spot monitor sensor RH	Blind Spot Monitor R	Vehicles with blind spot monitor system

Tech Tips

*1: for 2AR w/ wireless door lock system
*2: for 2AR w/o wireless door lock system
*3: for 2GR-FE

CAN BUS CHECK

Tech Tips

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

Using the Techstream, select "CAN Bus Check" from "System Select".

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 (Communication 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 Techstream, 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 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 (COMMUNICATION BUS CHECK) SCREEN

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

Note

The following CAN bus wiring diagram is provided only as an example. This wiring diagram is different from the actual wiring diagram for this vehicle.
Tech Tips
- When a communication stop is currently occurring, it is easier to determine the probable malfunctioning part from the CAN bus check rather than from communication DTCs.
- Wait for approximately 2 minutes after turning the ignition switch to ON (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 a sensor which is not displayed) is suspected.

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

Explanation of CAN Bus Check (Communication 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 Techstream 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 Techstream 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.
3. When a CAN communication error occurs, many DTCs are output. DTCs other than communication error DTCs (such as DTCs that start with C or B) and communication DTCs for the ABS system are important DTCs, however it may be easier to determine the malfunctioning part by examining the overall situation without considering these DTCs.

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 Techstream.
If CAN communication system DTCs are output, the malfunction cannot be determined only by the DTCs. Perform troubleshooting according to How to Proceed with Troubleshooting Click here.
If the system function temporarily returns to normal, DTCs may not be output again even though the following DTC check procedures are used.

Network Gateway ECU / Techstream Display "Gateway"

Tech Tips

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

Network Gateway ECU / Techstream Display "Gateway"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0233	Lost Communication with Blind Spot Monitor Master Module	The network gateway ECU does not receive data from the blind spot monitor sensor RH.	The ignition switch is ON for 22 seconds or more.	Turn the ignition switch to ON and wait at least 22 seconds.	-	DTC is stored until it is cleared using the Techstream.
U1002	Lost Communication with Gateway Module (Network Gateway ECU)	The network gateway ECU detects communication errors between itself and the blind spot monitor sensor RH.	The ignition switch is ON for 22 seconds or more.	Turn the ignition switch to ON and wait at least 22 seconds.	-	DTC is stored until it is cleared using the Techstream.

ECM (for 2AR-FE) / Techstream 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) / Techstream 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 ignition switch is ON. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	MIL illuminates.	DTC is stored until it is cleared using the Techstream.
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 ignition switch is ON. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	MIL illuminates.	DTC is stored until it is cleared using the Techstream.

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

Tech Tips

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

ECM (for 2GR-FE) / Techstream Display "Engine"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0101*1	Lost Communication with TCM	The ECM does not receive data from the TCM for 1.25 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	MIL illuminates.	DTC is stored until it is cleared using the Techstream.

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

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*1: Refer to U660E Automatic Transaxle System Click here.

TCM / Techstream Display "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 TCM does not receive data from the ECM for 1.25 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the TCM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	MIL illuminates.	DTC is stored until it is cleared using the Techstream.

Power Steering ECU Assembly (for 2GR-FE) / Techstream Display "EMPS"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

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

Power Steering ECU with Motor Assembly (for 2AR w/ wireless door lock system) / Techstream Display "EMPS"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

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

Power Steering ECU Assembly (for 2AR w/o wireless door lock system) / Techstream Display "EMPS"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

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

Skid Control ECU / Techstream Display "ABS/VSC/TRAC"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Brake actuator assembly (Skid Control ECU) / Techstream Display "ABS/VSC/TRAC"
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	Bus off is judged for 0.1 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the brake actuator assembly (skid control ECU) (+BS terminal voltage) is between 9.6 and 16.5 V.	Turn the ignition switch to ON and check that the initial light check illumination turns off, and then wait at least 3 seconds.	ABS warning light illuminates. Slip indicator light illuminates. Brake warning light illuminates.	DTC is stored until it is cleared using the Techstream.
U0100	Lost Communication with ECM / PCM	The brake actuator assembly (skid control ECU) does not receive data from the ECM for 2.5 seconds or more.	All conditions are met: Vehicle speed is 6 km/h (4 mph) or more. The ignition switch is ON for 1 second or more. The power source voltage of the brake actuator assembly (skid control ECU) (+BS terminal voltage) is between 9.6 and 16.5 V.	Turn the ignition switch to ON and drive the vehicle at a speed of 6 km/ h (4 mph) or more for 6 seconds or more. Check that the warning light remains off after turning off following the initial light check.	Slip indicator light illuminates.	DTC is stored until it is cleared using the Techstream.
U0123	Lost Communication with Yaw Rate Sensor Module	The brake actuator assembly (skid control ECU) does not receive data from the airbag sensor assembly for 1.1 seconds or more.	All conditions are met: Vehicle speed is 6 km/h (4 mph) or more. The ignition switch is ON for 1 second or more. The power source voltage of the brake actuator assembly (skid control ECU) (+BS terminal voltage) is between 9.6 and 16.5 V.	Turn the ignition switch to ON and drive the vehicle at a speed of 6 km/ h (4 mph) or more for 3 seconds or more. Check that the warning light remains off after turning off following the initial light check.	Slip indicator light illuminates.	DTC is stored until it is cleared using the Techstream.
U0126	Lost Communication with Steering Angle Sensor Module	The brake actuator assembly (skid control ECU) does not receive data from the steering sensor for 1.1 seconds or more.	All conditions are met: Vehicle speed is 6 km/h (4 mph) or more. The ignition switch is ON for 1 second or more. The power source voltage of the brake actuator assembly (skid control ECU) (+BS terminal voltage) is between 9.6 and 16.5 V.	Turn the ignition switch to ON and drive the vehicle at a speed of 6 km/ h (4 mph) or more for 3 seconds or more. Check that the warning light remains off after turning off following the initial light check.	Slip indicator light illuminates.	DTC is stored until it is cleared using the Techstream.

Steering Angle Sensor / Techstream Display "Steering Angle Sensor"

Tech Tips

The steering angle sensor is connected to the CAN communication system, but the steering angle sensor does not store or output CAN communication DTCs.
Airbag Sensor Assembly / Techstream 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) / Techstream Display "Main Body"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Main Body ECU (Multiplex network body ECU) / Techstream 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: 10 seconds have elapsed after connection of the battery. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the Techstream.
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: 10 seconds have elapsed after connection of the battery. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0120	Lost Communication with Starter / Generator Control Module	The main body ECU (multiplex network body ECU) does not receive data from the smart key ECU assembly (certification 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 main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the Techstream.
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: 10 seconds have elapsed after connection of the battery. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the Techstream.
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: 10 seconds have elapsed after connection of the battery. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the Techstream.
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: 10 seconds have elapsed after connection of the battery. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0327	Software Incompatibility with Vehicle Security Control Module	The main body ECU (multiplex network body ECU) does not receive data from the smart key ECU assembly (certification 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 main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the Techstream.

Smart Key ECU Assembly (Certification ECU) / Techstream Display "Smart Key"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Smart Key ECU Assembly (Certification ECU) / Techstream Display "Smart Key"
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 smart key ECU assembly (certification ECU) 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 smart key ECU assembly (certification ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0142	Lost Communication with Main Body ECU	The smart key ECU assembly (certification ECU) 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 smart key ECU assembly (certification ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0155	Lost Communication with Combination Meter	The smart key ECU assembly (certification ECU) 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 smart key ECU assembly (certification ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the Techstream.

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

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Smart Key ECU Assembly (Certification ECU) / Techstream 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 smart key ECU assembly (certification ECU) 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 smart key ECU assembly (certification ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0140	Lost Communication with Main Body ECU	The smart key ECU assembly (certification ECU) 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 smart key ECU assembly (certification ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0155	Lost Communication with Combination Meter	The smart key ECU assembly (certification ECU) 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 smart key ECU assembly (certification ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the Techstream.

Air Conditioning Amplifier Assembly / Techstream Display "Air Conditioner"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Air Conditioning Amplifier Assembly / Techstream 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: Ignition switch ON The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0131	Lost Communication with Electric Power Steering ECU	The air conditioning amplifier assembly does not receive data from the power steering ECU assembly for 5 seconds or more.	Both conditions are met: Ignition switch ON The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the Techstream.
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: Ignition switch ON The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the Techstream.
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: Ignition switch ON The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the Techstream.

Combination Meter Assembly / Techstream Display "Combination Meter"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Combination Meter Assembly / Techstream 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: Ignition switch ON The power source voltage of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 2 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0129	Lost Communication with Skid Control ECU	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: Ignition switch ON The power source voltage of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 3 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0131	Lost Communication with Power Steering Control Module	The combination meter assembly does not receive data from the power steering ECU assembly for 3 seconds or more.	Both conditions are met: Ignition switch ON The power source voltage of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 3 seconds.	EPS warning light illuminates.	DTC is stored until it is cleared using the Techstream.
U0142	Lost Communication with Main Body ECU	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: Ignition switch ON The power source voltage of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0151	Lost Communication with Airbag ECU	The combination meter assembly does not receive data from the airbag sensor assembly for 10 seconds or more.	Both conditions are met: Ignition switch ON The power source voltage of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 10 seconds.	SRS warning light illuminates.	DTC is stored until it is cleared using the Techstream.

Navigation Receiver Assembly (for Navigation receiver type) / Techstream Display "Navigation System"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Navigation Receiver Assembly (for Navigation receiver type) / Techstream Display "Navigation System"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0073	Sending Malfunction (Navigation to APGS)	The navigation receiver assembly does not send/receive data 10 times in succession.	Both conditions are met: The ignition switch is ACC for 1 second or more. The power source voltage of the navigation receiver assembly is 9.5 V or more.	Turn the ignition switch to ACC and wait at least 11 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0100	Lost Communication with ECM	The navigation receiver assembly does not receive data from the ECM for 4 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the navigation receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0140	Lost Communication with Body Control Module	The navigation receiver assembly does not receive data from the main body ECU (multiplex network body ECU) for 3 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the navigation receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 4 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0155	Meter ECU Communication	The navigation receiver assembly does not receive data from the combination meter assembly for 30 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the navigation receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 31 seconds.	-	DTC is stored until it is cleared using the Techstream.

Navigation ECU Sub-assembly (for Radio and display type w/ intuitive parking assist system) / Techstream Display "Navigation System"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Navigation ECU Sub-assembly (for Radio and display type w/ intuitive parking assist system) / Techstream Display "Navigation System"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0073	Sending Malfunction (Navigation to APGS)	The navigation ECU sub-assembly does not send/receive data 10 times in succession.	Both conditions are met: The ignition switch is ACC for 1 second or more. The power source voltage of the navigation ECU sub-assembly is 9.5 V or more.	Turn the ignition switch to ACC and wait at least 11 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0100	Lost Communication with ECM	The navigation ECU sub-assembly does not receive data from the ECM for 4 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the navigation ECU sub-assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0126	Lost Communication with Steering Angle Sensor Module	The navigation ECU sub-assembly does not receive data from the steering sensor for 1.12 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the navigation ECU sub-assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 2.12 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0140	Lost Communication with Body Control Module	The navigation ECU sub-assembly does not receive data from the main body ECU (multiplex network body ECU) for 3 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the navigation ECU sub-assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 4 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0155	Meter ECU Communication	The navigation ECU sub-assembly does not receive data from the combination meter assembly for 30 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the navigation ECU sub-assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 31 seconds.	-	DTC is stored until it is cleared using the Techstream.

Radio and Display Receiver Assembly (for Radio and display type w/o intuitive parking assist system) / Techstream Display "Navigation System"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Radio and Display Receiver Assembly (for Radio and display type w/o intuitive parking assist system) / Techstream Display "Navigation System"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0073	Sending Malfunction (Navigation to APGS)	The radio and display receiver assembly does not send/receive data 10 times in succession.	Both conditions are met: The ignition switch is ACC for 1 second or more. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ACC and wait at least 11 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0100	Lost Communication with ECM	The radio and display receiver assembly does not receive data from the ECM for 4 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0140	Lost Communication with Body Control Module	The radio and display receiver assembly does not receive data from the main body ECU (multiplex network body ECU) for 3 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 4 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0155	Meter ECU Communication	The radio and display receiver assembly does not receive data from the combination meter assembly for 30 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 31 seconds.	-	DTC is stored until it is cleared using the Techstream.

Blind Spot Monitor Sensor RH / Techstream Display "Blind Spot Monitor Master"

Tech Tips

This ECU uses the CAN communication system for DTC communication.
*1: Refer to Blind Spot Monitor System Click here.

Blind Spot Monitor Sensor RH / Techstream Display "Blind Spot Monitor Master"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM / PCM "A"	The blind spot monitor sensor RH does not receive data from the ECM for 10.84 seconds or more.	All conditions are met: Blind spot monitor main switch is on. The ignition switch is ON for 1 second or more. The power source voltage of the blind spot monitor sensor RH is 10 V or more. Vehicle speed is 5 km/h (3 mph) or more.	Turn the ignition switch to ON, turn the blind spot monitor system on using the blind spot monitor main switch (ON/OFF switch), wait at least 11.84 seconds, and then drive the vehicle at a speed of 5 km/h (3 mph) or more.	Blind spot monitor system warning light illuminates.	DTC is stored until it is cleared using the Techstream.
U0126	Lost Communication with Steering Angle Sensor Module	The blind spot monitor sensor RH does not receive data from the steering sensor for 10.68 seconds or more.	All conditions are met: Blind spot monitor main switch is on. The ignition switch is ON for 1 second or more. The power source voltage of the blind spot monitor sensor RH is 10 V or more.	Turn the ignition switch to ON, turn the blind spot monitor system on using the blind spot monitor main switch (ON/OFF switch) and wait at least 11.68 seconds.	Blind spot monitor system warning light illuminates.	DTC is stored until it is cleared using the Techstream.
U0129	Lost Communication with Brake System Control Module	The blind spot monitor sensor RH does not receive data from the brake actuator assembly (skid control ECU) for 2.334 seconds or more.	All conditions are met: Blind spot monitor main switch is on. The ignition switch is ON for 2 seconds or more. The power source voltage of the blind spot monitor sensor RH is 10 V or more.	Turn the ignition switch to ON, turn the blind spot monitor system on using the blind spot monitor main switch (ON/OFF switch) and wait at least 4.334 seconds.	Blind spot monitor system warning light illuminates.	DTC is stored until it is cleared using the Techstream.
U0142	Lost Communication with Body Control Module "B"	The blind spot monitor sensor RH does not receive data from the main body ECU (multiplex network body ECU) for 10.6 seconds or more.	All conditions are met: Blind spot monitor main switch is on. The ignition switch is ON for 1 second or more. The power source voltage of the blind spot monitor sensor RH is 10 V or more.	Turn the ignition switch to ON, turn the blind spot monitor system on using the blind spot monitor main switch (ON/OFF switch) and wait at least 11.6 seconds.	Blind spot monitor system warning light illuminates.	DTC is stored until it is cleared using the Techstream.
U0232*1	Lost Communication with Blind Spot Monitor Slave Module	The blind spot monitor sensor RH does not receive data from the blind spot monitor sensor LH for 10.6 seconds or more.	All conditions are met: Blind spot monitor main switch is on. The ignition switch is ON for 1 second or more. The power source voltage of the blind spot monitor sensor RH is 10 V or more.	Turn the ignition switch to ON, turn the blind spot monitor system on using the blind spot monitor main switch (ON/OFF switch) and wait at least 11.6 seconds.	Blind spot monitor system warning light illuminates.	DTC is stored until it is cleared using the Techstream.
U1331*1	Software Incompatibility with Body Control Module "B"	Destination information of the main body ECU and blind spot monitor sensor do not match.	All conditions are met: Blind spot monitor main switch is on. The ignition switch is ON for 1 second or more. The power source voltage of the blind spot monitor sensor RH is 10 V or more.	Destination information of the main body ECU and blind spot monitor sensor do not match.	Blind spot monitor system warning light illuminates.	DTC is stored until it is cleared using the Techstream.

Clearance Warning ECU Assembly / Techstream Display "Intuitive P/A"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

Clearance Warning ECU Assembly / Techstream Display "Intuitive P/A"
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 clearance warning ECU assembly does not receive data from the ECM for 5.75 seconds or more.	Both conditions are met: The ignition switch is ON for 2 seconds or more. The power source voltage of the clearance warning ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 7.75 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0101	Lost Communication with TCM	The clearance warning ECU assembly does not receive data from the TCM for 8.07 seconds or more.	Both conditions are met: The ignition switch is ON for 2 seconds or more. The power source voltage of the clearance warning ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 10.07 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0142	Lost Communication with Body Control Module "B"	The clearance warning ECU assembly does not receive data from the main body ECU (multiplex network body ECU) for 5.9 seconds or more.	Both conditions are met: The ignition switch is ON for 2 seconds or more. The power source voltage of the clearance warning ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 7.9 seconds.	-	DTC is stored until it is cleared using the Techstream.
U0155	Lost Communication with Instrument Panel Cluster Control Module (Combination Meter)	The clearance warning ECU assembly does not receive data from the combination meter assembly for 6.5 seconds or more.	Both conditions are met: The ignition switch is ON for 2 seconds or more. The power source voltage of the clearance warning ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 8.5 seconds.	-	DTC is stored until it is cleared using the Techstream.

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

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

Tech Tips

Based on the table below and DTCs output from ECUs connected via CAN communication, the probable part for which communication stop occurred can be determined.
Regarding an open in a CAN branch and a communication stop that is currently occurring, the malfunctioning part can be confirmed easily by performing the CAN bus check using the Techstream because the ECU or sensor connected to the CAN branch does not respond (the ECU or sensor name will not be displayed on the screen).
If an open in a CAN main bus line, a short between the CAN bus lines (CANH and CANL) or a +B or ground short in the CAN bus occurs, DTCs of almost all ECUs (or sensors) on the CAN bus may be output, or a message indicating a communication error may be displayed on the Techstream 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 one CAN branch line)
-			V Bus
Output ECU		Output DTC	Center Airbag Sensor Communication Stop Mode Click here	Air Conditioning Amplifier Communication Stop Mode Click here	Navigation ECU Communication Stop Mode23 Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	○	-
		U0131	-	○	-
		U0142	-	○	-
		U0155	-	○	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-	-	○
		U0100	-	-	○
		U0126*3	X	X	○
		U0140	-	-	○
		U0155	-	-	○
	Radio and Display Receiver Assembly*4	U0073	-	-	-
		U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	○	-	-
		U0155	-	-	-
		U0164	-	○	-
		U0327	-	-	-
	Network Gateway ECU*1	-	-	-	-
	Clearance Warning ECU Assembly	U0100	-	-	-
		U0101	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-	-	-
		U0140	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Combination Meter Assembly	U0100	-	X	-
		U0129	-	X	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	○	-	-
	Steering Sensor	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	-	-	-
		U0100	○	○	○
		U0123	○	○	○
		U0126	○	○	○
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	-	-	-
		U0126	X	X	X
		U0129	X	X	X
		U0142	-	-	-
		U0232	-	-	-
	Network Gateway ECU*1	U0233	-	-	-
	Network Gateway ECU*1	U1002	-	-	-

-			Trouble Mode (Open in one CAN branch line)
-			V Bus
Output ECU		Output DTC	Audio Receiver Assembly Communication Stop Mode*4 Click here	Main Body ECU Communication Stop Mode Click here	Gateway ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	○	-
		U0155	-	-	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-	-	-
		U0100	-	-	-
		U0126*3	-	X	X
		U0140	-	○	-
		U0155	-	-	-
	Radio and Display Receiver Assembly*4	U0073	○	-	-
		U0100	○	-	-
		U0140	○	○	-
		U0155	○	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	○	-
		U0101	-	○	-
		U0120	-	○	-
		U0151	-	○	-
		U0155	-	○	-
		U0164	-	○	-
		U0327	-	○	-
	Network Gateway ECU*1	-	-	-	-
V Bus	Clearance Warning ECU Assembly	U0100	-	-	-
		U0101	-	-	-
		U0142	-	○	-
		U0155	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-	-	-
		U0140	-	○	-
		U0142	-	○	-
		U0155	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	○	-
		U0151	-	-	-
	Steering Sensor	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	-	-	-
		U0100	○	○	○
		U0123	○	○	○
		U0126	○	○	○
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	-	-	○
		U0126	X	X	○
		U0129	X	X	○
		U0142	-	○	○
		U0232	-	-	-
	Network Gateway ECU*1	U0233	-	-	-
	Network Gateway ECU*1	U1002	-	-	-

-			Trouble Mode (Open in one CAN branch line)
-			V Bus
Output ECU		Output DTC	Clearance Warning ECU Communication Stop Mode Click here	Power Steering ECU Communication Stop Mode Click here	Certification ECU Communication Stop Mode Click here	Steering Angle Sensor Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0131	-	○	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
V Bus	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-	-	-	-
		U0100	-	-	-	-
		U0126*3	X	X	X	○
		U0140	-	-	-	-
		U0155	-	-	-	-
	Radio and Display Receiver Assembly*4	U0073	-	-	-	-
		U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-	-
		U0101	-	-	-	-
		U0120	-	-	○	-
		U0151	-	-	-	-
		U0155	-	-	-	-
		U0164	-	-	-	-
		U0327	-	-	○	-
	Network Gateway ECU*1	-	-	-	-	-
	Clearance Warning ECU Assembly	U0100	○	-	-	-
		U0101	○	-	-	-
		U0142	○	-	-	-
		U0155	○	-	-	-
	Power Steering ECU Assembly	U0100	-	○	-	-
	Power Steering ECU Assembly	U0129	-	○	-	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-	-	○	-
		U0140	-	-	○	-
		U0142	-	-	○	-
		U0155	-	-	○	-
	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0131	-	○	-	-
		U0142	-	-	-	-
		U0151	-	-	-	-
	Steering Sensor	-	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	-	-	-	-
		U0100	○	○	○	○
		U0123	○	○	○	○
		U0126	○	○	○	○
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	-	-	-	-
		U0126	X	X	X	○
		U0129	○	X	○	X
		U0142	-	-	-	-
		U0232	-	-	-	-
	Network Gateway ECU*1	U0233	-	-	-	-
	Network Gateway ECU*1	U1002	-	-	-	-

-			Trouble Mode (Open in one CAN branch line)
-			V Bus
Output ECU		Output DTC	Skid Control ECU Communication Stop Mode Click here	DLC3
V Bus	Airbag Sensor Assembly	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-
		U0131	-	-
		U0142	-	-
		U0155	-	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-	-
		U0100	-	-
		U0126*3	X	X
		U0140	-	-
		U0155	-	-
	Radio and Display Receiver Assembly*4	U0073	-	-
		U0100	-	-
		U0140	-	-
		U0155	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-
		U0101	-	-
		U0120	-	-
		U0151	-	-
		U0155	-	-
		U0164	-	-
		U0327	-	-
	Network Gateway ECU*1	-	-	-
	Clearance Warning ECU Assembly	U0100	-	-
		U0101	-	-
		U0142	-	-
		U0155	-	-
	Power Steering ECU Assembly	U0100	-	-
	Power Steering ECU Assembly	U0129	○	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-	-
		U0140	-	-
		U0142	-	-
		U0155	-	-
	Combination Meter Assembly	U0100	X	-
		U0129	○	-
		U0131	-	-
		U0142	-	-
		U0151	-	-
	Steering Sensor	-	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	○	-
		U0100	○	○
		U0123	○	○
		U0126	○	○
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	-	-
		U0126	X	X
		U0129	○	○
		U0142	-	-
		U0232	-	-
	Network Gateway ECU*1	U0233	-	-
	Network Gateway ECU*1	U1002	-	-

Tech Tips

○: Set
X: Not set or may be set according to the malfunctioning part when one line of a CAN branch is open.
-: DTC is not output.
*1: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
*2: for Navigation receiver type
*3: for Radio and display type w/ intuitive parking assist system
*4: for Radio and display type w/o intuitive parking assist system

-			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	Navigation ECU Communication Stop Mode23 Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	○	-
		U0131	-	○	-
		U0142	-	○	-
		U0155	-	○	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-	-	○
		U0100	-	-	○
		U0126*3	-	-	○
		U0140	-	-	○
		U0155	-	-	○
	Radio and Display Receiver Assembly*4	U0073	-	-	-
		U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
V Bus	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	○	-	-
		U0155	-	-	-
		U0164	-	○	-
		U0327	-	-	-
	Network Gateway ECU*1	-	-	-	-
	Clearance Warning ECU Assembly	U0100	-	-	-
		U0101	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-	-	-
		U0140	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	○	-	-
	Steering Sensor	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	-	-	-
		U0100	-	-	-
		U0123	○	-	-
		U0126	-	-	-
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0232	-	-	-
	Network Gateway ECU*1	U0233	-	-	-
	Network Gateway ECU*1	U1002	-	-	-

-			Trouble Mode (Open in both CAN branch lines)
-			V Bus
Output ECU		Output DTC	Audio Receiver Assembly Communication Stop Mode*4 Click here	Main Body ECU Communication Stop Mode Click here	Gateway ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	○	-
		U0155	-	-	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-	-	-
		U0100	-	-	-
		U0126*3	-	-	-
		U0140	-	○	-
		U0155	-	-	-
	Radio and Display Receiver Assembly*4	U0073	○	-	-
		U0100	○	-	-
		U0140	○	○	-
		U0155	○	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	○	-
		U0101	-	○	-
		U0120	-	○	-
		U0151	-	○	-
		U0155	-	○	-
		U0164	-	○	-
		U0327	-	○	-
	Network Gateway ECU*1	-	-	-	-
	Clearance Warning ECU Assembly	U0100	-	-	-
		U0101	-	-	-
		U0142	-	○	-
		U0155	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
	Power Steering ECU Assembly	U0129	-	-	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-	-	-
		U0140	-	○	-
		U0142	-	○	-
		U0155	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	○	-
		U0151	-	-	-
	Steering Sensor	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	-	-	-
		U0100	-	-	-
		U0123	-	-	-
		U0126	-	-	-
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	-	-	○
		U0126	-	-	○
		U0129	-	-	○
		U0142	-	○	○
		U0232	-	-	-
	Network Gateway ECU*1	U0233	-	-	-
	Network Gateway ECU*1	U1002	-	-	-

-			Trouble Mode (Open in both CAN branch lines)
-			V Bus
Output ECU		Output DTC	Clearance Warning ECU Communication Stop Mode Click here	Power Steering ECU Communication Stop Mode Click here	Certification ECU Communication Stop Mode Click here	Steering Angle Sensor Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0131	-	○	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-	-	-	-
		U0100	-	-	-	-
		U0126*3	-	-	-	○
		U0140	-	-	-	-
		U0155	-	-	-	-
	Radio and Display Receiver Assembly*4	U0073	-	-	-	-
		U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-	-
		U0101	-	-	-	-
		U0120	-	-	○	-
		U0151	-	-	-	-
		U0155	-	-	-	-
		U0164	-	-	-	-
		U0327	-	-	○	-
	Network Gateway ECU*1	-	-	-	-	-
	Clearance Warning ECU Assembly	U0100	○	-	-	-
		U0101	○	-	-	-
		U0142	○	-	-	-
		U0155	○	-	-	-
V Bus	Power Steering ECU Assembly	U0100	-	○	-	-
	Power Steering ECU Assembly	U0129	-	○	-	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-	-	○	-
		U0140	-	-	○	-
		U0142	-	-	○	-
		U0155	-	-	○	-
	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0131	-	○	-	-
		U0142	-	-	-	-
		U0151	-	-	-	-
	Steering Sensor	-	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	-	-	-	-
		U0100	-	-	-	○
		U0123	-	-	-	-
		U0126	-	-	-	○
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	-	-	-	-
		U0126	-	-	-	○
		U0129	-	-	-	-
		U0142	-	-	-	-
		U0232	-	-	-	-
	Network Gateway ECU*1	U0233	-	-	-	-
	Network Gateway ECU*1	U1002	-	-	-	-

-			Trouble Mode (Open in both CAN branch lines)
-			V Bus
Output ECU		Output DTC	Skid Control ECU Communication Stop Mode Click here	DLC3
V Bus	Airbag Sensor Assembly	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-
		U0131	-	-
		U0142	-	-
		U0155	-	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-	-
		U0100	-	-
		U0126*3	-	-
		U0140	-	-
		U0155	-	-
V Bus	Radio and Display Receiver Assembly*4	U0073	-	-
		U0100	-	-
		U0140	-	-
		U0155	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-
		U0101	-	-
		U0120	-	-
		U0151	-	-
		U0155	-	-
		U0164	-	-
		U0327	-	-
	Network Gateway ECU*1	-	-	-
	Clearance Warning ECU Assembly	U0100	-	-
		U0101	-	-
		U0142	-	-
		U0155	-	-
	Power Steering ECU Assembly	U0100	-	-
	Power Steering ECU Assembly	U0129	○	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-	-
		U0140	-	-
		U0142	-	-
		U0155	-	-
	Combination Meter Assembly	U0100	-	-
		U0129	○	-
		U0131	-	-
		U0142	-	-
		U0151	-	-
	Steering Sensor	-	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	○	-
		U0100	○	-
		U0123	○	-
		U0126	○	-
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	-	-
		U0126	-	-
		U0129	○	-
		U0142	-	-
		U0232	-	-
	Network Gateway ECU*1	U0233	-	-
	Network Gateway ECU*1	U1002	-	-

Tech Tips

○: Set
-: DTC is not output.
*1: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
*2: for Navigation receiver type
*3: for Radio and display type w/ intuitive parking assist system
*4: for Radio and display type w/o intuitive parking assist system

-			Trouble Mode (Open in one CAN main bus line)
-			V Bus
Output ECU		Output DTC	Combination Meter ECU Communication Stop Mode Click here	CAN No. 1 J/C to CAN No. 2 J/C	ECM Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	○
		U0131	-	○	-
		U0142	-	○	-
		U0155	○	○	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-	-	-
		U0100	-	-	○
		U0126*3	X	○	X
		U0140	-	○	-
		U0155	○	○	-
	Radio and Display Receiver Assembly*4	U0073	-	-	-
		U0100	-	-	○
		U0140	-	○	-
		U0155	○	○	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	○	○
		U0101	-	○	○
		U0120	-	○	-
		U0151	-	X	-
		U0155	○	X	-
		U0164	-	○	-
		U0327	-	○	-
	Network Gateway ECU*1	-	-	-	-
	Clearance Warning ECU Assembly	U0100	-	-	○
		U0101	-	-	○
		U0142	-	○	-
		U0155	○	○	-
	Power Steering ECU Assembly	U0100	-	○	○
	Power Steering ECU Assembly	U0129	-	○	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-	-	○
		U0140	-	○	-
		U0142	-	○	-
		U0155	○	○	-
	Combination Meter Assembly	U0100	○	○	○
		U0129	○	○	-
		U0131	○	X	-
		U0142	○	-	-
		U0151	○	X	-
V Bus	Steering Sensor	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	-	-	-
		U0100	○	○	○
		U0123	○	○	○
		U0126	○	○	○
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	-	-	○
		U0126	X	○	X
		U0129	○	X	○
		U0142	-	○	-
		U0232	-	-	-
	Network Gateway ECU*1	U0233	-	-	-
	Network Gateway ECU*1	U1002	-	-	-

Tech Tips

○: Set
X: Not set or may be set according to the malfunctioning part when one line of a CAN branch is open.
-: DTC is not output.
*1: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
*2: for Navigation receiver type
*3: for Radio and display type w/ intuitive parking assist system
*4: for Radio and display type w/o intuitive parking assist system

-			Trouble Mode (Open in both CAN main bus lines)
-			V Bus
Output ECU		Output DTC	Combination Meter ECU Communication Stop Mode Click here	CAN No. 1 J/C to CAN No. 2 J/C	ECM Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	○
		U0131	-	○	-
		U0142	-	○	-
		U0155	○	○	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-	-	-
		U0100	-	-	○
		U0126*3	-	○	-
		U0140	-	○	-
		U0155	○	○	-
	Radio and Display Receiver Assembly*4	U0073	-	-	-
		U0100	-	-	○
		U0140	-	○	-
		U0155	○	○	-
V Bus	Main Body ECU (Multiplex Network Body ECU)	U0100	-	○	○
		U0101	-	○	○
		U0120	-	○	-
		U0151	-	-	-
		U0155	○	-	-
		U0164	-	○	-
		U0327	-	○	-
	Network Gateway ECU*1	-	-	-	-
	Clearance Warning ECU Assembly	U0100	-	-	○
		U0101	-	-	○
		U0142	-	○	-
		U0155	○	○	-
	Power Steering ECU Assembly	U0100	-	○	○
	Power Steering ECU Assembly	U0129	-	○	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-	-	○
		U0140	-	○	-
		U0142	-	○	-
		U0155	○	○	-
	Combination Meter Assembly	U0100	○	○	○
		U0129	○	○	-
		U0131	○	-	-
		U0142	○	-	-
		U0151	○	-	-
	Steering Sensor	-	-	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	-	-	-
		U0100	-	○	○
		U0123	-	○	-
		U0126	-	○	-
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	-	-	○
		U0126	-	○	-
		U0129	-	-	-
		U0142	-	○	-
		U0232	-	-	-
	Network Gateway ECU*1	U0233	-	-	-
	Network Gateway ECU*1	U1002	-	-	-

Tech Tips

○: Set
-: DTC is not output.
*1: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
*2: for Navigation receiver type
*3: for Radio and display type w/ intuitive parking assist system
*4: for Radio and display type w/o intuitive parking assist system

-			Trouble Mode (CAN bus line short circuit or short to GND)
-			V Bus
Output ECU		Output DTC	CAN No. 1 J/C to CAN No. 2 J/C
V Bus	Airbag Sensor Assembly	-	-
	Air Conditioning Amplifier Assembly	U0100	○
		U0131	○
		U0142	○
		U0155	○
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	○
		U0100	○
		U0126*3	○
		U0140	○
		U0155	○
	Radio and Display Receiver Assembly*4	U0073	○
		U0100	○
		U0140	○
		U0155	○
	Main Body ECU (Multiplex Network Body ECU)	U0100	○
		U0101	○
		U0120	○
		U0151	○
		U0155	○
		U0164	○
		U0327	○
	Network Gateway ECU*1	-	-
	Clearance Warning ECU Assembly	U0100	○
		U0101	○
		U0142	○
		U0155	○
	Power Steering ECU Assembly	U0100	○
	Power Steering ECU Assembly	U0129	○
	Smart Key ECU Assembly (Certification ECU)	U0100	○
		U0140	○
		U0142	○
		U0155	○
	Combination Meter Assembly	U0100	○
		U0129	○
		U0131	○
		U0142	○
		U0151	○
	Steering Sensor	-	-
V Bus	Brake Actuator Assembly (Skid Control ECU)	U0073	○
		U0100	○
		U0123	○
		U0126	○
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	○
		U0126	○
		U0129	○
		U0142	○
		U0232	-
	Network Gateway ECU*1	U0233	-
	Network Gateway ECU*1	U1002	-

Tech Tips

○: Set
-: DTC is not output.
*1: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
*2: for Navigation receiver type
*3: for Radio and display type w/ intuitive parking assist system
*4: for Radio and display type w/o intuitive parking assist system

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

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

Tech Tips

As gateway function equipped ECUs (sub bus monitor 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.
DTCs output from ECUs other than the network gateway ECU (gateway function equipped ECU) are shown only as a reference.
Regarding a communication stop that is currently occurring in sub bus 2, the malfunctioning part can be confirmed easily by performing the CAN bus check using the Techstream.
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 one CAN branch line)
-			Sub bus 2
Output ECU		Output DTC	Blind Spot Monitor Sensor RH Click here
V Bus	Airbag Sensor Assembly	-	-
	Air Conditioning Amplifier Assembly	U0100	-
		U0131	-
		U0142	-
		U0155	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-
		U0100	-
		U0126*3	-
		U0140	-
		U0155	-
	Radio and Display Receiver Assembly*4	U0073	-
		U0100	-
		U0140	-
		U0155	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-
		U0101	-
		U0120	-
		U0151	-
		U0155	-
		U0164	-
		U0327	-
	Network Gateway ECU*1	-	-
	Clearance Warning ECU Assembly	U0100	-
		U0101	-
		U0142	-
		U0155	-
	Power Steering ECU Assembly	U0100	-
	Power Steering ECU Assembly	U0129	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-
		U0140	-
		U0142	-
		U0155	-
	Combination Meter Assembly	U0100	-
		U0129	-
		U0131	-
		U0142	-
		U0151	-
	Steering Sensor	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	-
		U0100	-
		U0123	-
		U0126	-
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	○
		U0126	○
		U0129	○
		U0142	○
		U0232	○
	Network Gateway ECU*1	U0233	○
	Network Gateway ECU*1	U1002	○

Tech Tips

○: Set
X: Not set or may be set according to the malfunctioning part when one line of a CAN branch is open.
-: DTC is not output.
*1: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
*2: for Navigation receiver type
*3: for Radio and display type w/ intuitive parking assist system
*4: for Radio and display type w/o intuitive parking assist system

-			Trouble Mode (Open in both CAN branch lines)
-			Sub bus 2
Output ECU		Output DTC	Blind Spot Monitor Sensor RH Click here
V Bus	Airbag Sensor Assembly	-	-
	Air Conditioning Amplifier Assembly	U0100	-
		U0131	-
		U0142	-
		U0155	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-
		U0100	-
		U0126*3	-
		U0140	-
		U0155	-
	Radio and Display Receiver Assembly*4	U0073	-
		U0100	-
		U0140	-
		U0155	-
V Bus	Main Body ECU (Multiplex Network Body ECU)	U0100	-
		U0101	-
		U0120	-
		U0151	-
		U0155	-
		U0164	-
		U0327	-
	Network Gateway ECU*1	-	-
	Clearance Warning ECU Assembly	U0100	-
		U0101	-
		U0142	-
		U0155	-
	Power Steering ECU Assembly	U0100	-
	Power Steering ECU Assembly	U0129	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-
		U0140	-
		U0142	-
		U0155	-
	Combination Meter Assembly	U0100	-
		U0129	-
		U0131	-
		U0142	-
		U0151	-
	Steering Sensor	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	-
		U0100	-
		U0123	-
		U0126	-
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	○
		U0126	○
		U0129	○
		U0142	○
		U0232	○
	Network Gateway ECU*1	U0233	○
	Network Gateway ECU*1	U1002	-

Tech Tips

○: Set
-: DTC is not output.
*1: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
*2: for Navigation receiver type
*3: for Radio and display type w/ intuitive parking assist system
*4: for Radio and display type w/o intuitive parking assist system

-			Trouble Mode (Open in one CAN main bus line)
-			Sub bus 2
Output ECU		Output DTC	Network Gateway ECU Click here	CAN No. 3 J/C to CAN No. 5 J/C
V Bus	Airbag Sensor Assembly	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-
		U0131	-	-
		U0142	-	-
		U0155	-	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-	-
		U0100	-	-
		U0126*3	-	-
		U0140	-	-
		U0155	-	-
	Radio and Display Receiver Assembly*4	U0073	-	-
		U0100	-	-
		U0140	-	-
		U0155	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-
		U0101	-	-
		U0120	-	-
		U0151	-	-
		U0155	-	-
		U0164	-	-
		U0327	-	-
	Network Gateway ECU*1	-	-	-
	Clearance Warning ECU Assembly	U0100	-	-
		U0101	-	-
		U0142	-	-
		U0155	-	-
	Power Steering ECU Assembly	U0100	-	-
	Power Steering ECU Assembly	U0129	-	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-	-
		U0140	-	-
		U0142	-	-
		U0155	-	-
	Combination Meter Assembly	U0100	-	-
		U0129	-	-
		U0131	-	-
		U0142	-	-
		U0151	-	-
	Steering Sensor	-	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	-	-
		U0100	-	-
		U0123	-	-
		U0126	-	-
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	○	-
		U0126	○	-
		U0129	○	-
		U0142	○	-
		U0232	-	-
	Network Gateway ECU*1	U0233	○	-
	Network Gateway ECU*1	U1002	○	-

Tech Tips

○: Set
X: Not set or may be set according to the malfunctioning part when one line of a CAN branch is open.
-: DTC is not output.
*1: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
*2: for Navigation receiver type
*3: for Radio and display type w/ intuitive parking assist system
*4: for Radio and display type w/o intuitive parking assist system

-			Trouble Mode (Open in both CAN main bus lines)
-			Sub bus 2
Output ECU		Output DTC	Network Gateway ECU Click here	CAN No. 3 J/C to CAN No. 5 J/C
V Bus	Airbag Sensor Assembly	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-
		U0131	-	-
		U0142	-	-
		U0155	-	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-	-
		U0100	-	-
		U0126*3	-	-
		U0140	-	-
		U0155	-	-
	Radio and Display Receiver Assembly*4	U0073	-	-
		U0100	-	-
		U0140	-	-
		U0155	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-
		U0101	-	-
		U0120	-	-
		U0151	-	-
		U0155	-	-
		U0164	-	-
		U0327	-	-
	Network Gateway ECU*1	-	-	-
V Bus	Clearance Warning ECU Assembly	U0100	-	-
		U0101	-	-
		U0142	-	-
		U0155	-	-
	Power Steering ECU Assembly	U0100	-	-
	Power Steering ECU Assembly	U0129	-	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-	-
		U0140	-	-
		U0142	-	-
		U0155	-	-
	Combination Meter Assembly	U0100	-	-
		U0129	-	-
		U0131	-	-
		U0142	-	-
		U0151	-	-
	Steering Sensor	-	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	-	-
		U0100	-	-
		U0123	-	-
		U0126	-	-
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	○	-
		U0126	○	-
		U0129	○	-
		U0142	○	-
		U0232	-	-
	Network Gateway ECU*1	U0233	○	-
	Network Gateway ECU*1	U1002	○	-

Tech Tips

○: Set
-: DTC is not output.
*1: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
*2: for Navigation receiver type
*3: for Radio and display type w/ intuitive parking assist system
*4: for Radio and display type w/o intuitive parking assist system

-			Trouble Mode (CAN bus lines short circuit or short to GND)
-			Sub bus 2
Output ECU		Output DTC	CAN No. 3 J/C to CAN No. 5 J/C
V Bus	Airbag Sensor Assembly	-	-
	Air Conditioning Amplifier Assembly	U0100	-
		U0131	-
		U0142	-
		U0155	-
	Navigation Receiver Assembly2 Navigation ECU Sub-assembly3	U0073	-
		U0100	-
		U0126*3	-
		U0140	-
		U0155	-
	Radio and Display Receiver Assembly*4	U0073	-
		U0100	-
		U0140	-
		U0155	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-
		U0101	-
		U0120	-
		U0151	-
		U0155	-
		U0164	-
		U0327	-
	Network Gateway ECU*1	-	-
	Clearance Warning ECU Assembly	U0100	-
		U0101	-
		U0142	-
		U0155	-
	Power Steering ECU Assembly	U0100	-
	Power Steering ECU Assembly	U0129	-
	Smart Key ECU Assembly (Certification ECU)	U0100	-
		U0140	-
		U0142	-
		U0155	-
	Combination Meter Assembly	U0100	-
		U0129	-
		U0131	-
		U0142	-
		U0151	-
	Steering Sensor	-	-
	Brake Actuator Assembly (Skid Control ECU)	U0073	-
		U0100	-
		U0123	-
		U0126	-
Sub bus 2	Blind Spot Monitor Sensor RH	U0100	○
		U0126	○
		U0129	○
		U0142	○
		U0232	-
	Network Gateway ECU*1	U0233	○
	Network Gateway ECU*1	U1002	○

Tech Tips

○: Set
-: DTC is not output.
*1: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
*2: for Navigation receiver type
*3: for Radio and display type w/ intuitive parking assist system
*4: for Radio and display type w/o intuitive parking assist system

CAN BUS WAVEFORMS
Tech Tips
- This waveform is measured between terminals CANH and GND, and terminals CANL and GND of the DLC3. (Use this as a reference for diagnosis of CAN communication lines.)
- When malfunctions in multiple ECUs are suspected based on the CAN bus check and DTCs checked using the Techstream, 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.
1. CAN bus waveforms (Group 1)
  1. Normal waveform
  2. 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.
  3. 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.
2. 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.
  1. 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.
  2. 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.
  3. Open in a CAN main bus line (CANH)
    
    Tech Tips
    
    Waveforms of ECUs or sensors that are nearer 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.
  4. 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.
  5. Short between a CAN bus line (CANL) and ground
    
    Tech Tips
    
    Narrow down the shorted part by checking for waveform changes when disconnecting connectors from the CAN junction connectors or when disconnecting ECUs or sensors.
    
    A short to ground in the CANL line can be confirmed by measuring the resistance between CANL and ground using an ohmmeter.

DATA SENDING/RECEIVING TABLE

Data sending/receiving table

Tech Tips

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

Data content	Data Detected and Sent by	Data Received by (Can be Checked in Data List)	Data Received by (Cannot be Checked in Data List)	Relevant Data List Item [Selected System]
Accelerator position	ECM (2AR-FE/2GR-FE)	Brake actuator assembly (skid control ECU)	Airbag sensor assembly	Accelerator Position (for 2AR-FE) [Engine and ECT] Accelerator Position (for 2GR-FE) [Engine] Accelerator Opening Angle % [ABS/VSC/TRAC]
Engine speed	ECM (2AR-FE/2GR-FE)	Power steering ECU assembly Brake actuator assembly (skid control ECU) Combination meter assembly Smart key ECU assembly (certification ECU)	Airbag sensor assembly Air conditioning amplifier assembly Navigation receiver assembly (for navigation receiver type) Navigation ECU sub-assembly (for radio and display type w/ intuitive parking assist system) Radio and display receiver assembly (for radio and display type w/o intuitive parking assist system) Main body ECU (multiplex network body ECU)	Engine Speed (for 2AR-FE) [Engine and ECT] Engine Speed (for 2GR-FE) [Engine] Engine Revolution (for 2GR-FE) [EMPS] Engine Revolution (for 2AR w/ wireless door lock) [EMPS] Engine Revolution (for 2AR w/o wireless door lock) [EMPS] Engine Revolutions [ABS/VSC/TRAC] Engine Rpm [Combination Meter] Engine Speed [Starting Control]
Engine coolant temperature	ECM (2AR-FE/2GR-FE)	Air conditioning amplifier assembly Combination meter assembly	-	Coolant Temp (for 2AR-FE) [Engine and ECT] Coolant Temp (for 2GR-FE) [Engine] Engine Coolant Temp [Air Conditioner] Coolant Temperature [Combination Meter]
Vehicle speed	Brake actuator assembly (skid control ECU)	ECM (2AR-FE/2GR-FE) Power steering ECU assembly Combination meter assembly Blind spot monitor sensor RH	Airbag sensor assembly	Vehicle Speed [ABS/VSC/TRAC] Vehicle Speed (for 2GR-FE) [Engine] Vehicle Speed (for 2AR-FE) [Engine and ECT] Meter Vehicle Velocity [EMPS] Vehicle Speed Meter [Combination Meter] Vehicle Speed [Blind Spot Monitor Master]
Vehicle speed	Combination meter assembly *3	Clearance warning ECU assembly Smart key ECU assembly (certification ECU)	Air conditioning amplifier assembly Main body ECU (multiplex network body ECU)	Vehicle Speed Meter [Combination Meter] Vehicle Speed Info [Intuitive P/A] Vehicle Speed Signal [Power Source Control]
Wheel speed	Brake actuator assembly (skid control ECU)	-	ECM (2AR-FE/2GR-FE) Power steering ECU assembly Blind spot monitor sensor RH	FR Wheel Speed [ABS/VSC/TRAC] FL Wheel Speed [ABS/VSC/TRAC] RR Wheel Speed [ABS/VSC/TRAC] RL Wheel Speed [ABS/VSC/TRAC]
Shift position	ECM (2AR-FE/2GR-FE)	Clearance warning ECU assembly Navigation receiver assembly (for navigation receiver type) Navigation ECU sub-assembly (for radio and display type w/ intuitive parking assist system) Radio and display receiver assembly (for radio and display type w/o intuitive parking assist system) Smart key ECU assembly (certification ECU) Brake actuator assembly (skid control ECU) Blind spot monitor sensor RH	Airbag sensor assembly Combination meter assembly Main body ECU (multiplex network body ECU)	Neutral Position SW Signal (for 2AR-FE) [Engine and ECT] Neutral Position SW Signal (for 2GR-FE) [Engine] Parking Signal [Intuitive P/A] Reverse Signal [Intuitive P/A] Reverse Signal [Navigation System] Shift P Signal [Power Source Control] Shift Lever Position [ABS/VSC/TRAC] Reverse [Blind Spot Monitor Master]
Ambient temperature	Air conditioning amplifier assembly	ECM (2AR-FE/2GR-FE) Combination meter assembly	Main body ECU (multiplex network body ECU) Clearance warning ECU assembly	Ambient Temp Sensor [Air Conditioner] Ambient Temp for A/C (for 2AR-FE) [Engine and ECT] Ambient Temp for A/C (for 2GR-FE) [Engine] Ambient Temperature [Combination Meter]
FR door courtesy	Main body ECU (multiplex network body ECU)	-	Smart key ECU assembly (certification ECU) Combination meter assembly *2	FR Door Courtesy [Main Body]
Steering angle sensor	Steering sensor	Power steering ECU assembly (for 2AR w/ wireless door lock) Power steering ECU assembly (for 2GR-FE) Brake actuator assembly (skid control ECU) Blind spot monitor sensor RH	Airbag sensor assembly Navigation receiver assembly (for navigation receiver type) Navigation ECU sub-assembly (for radio and display type w/ intuitive parking assist system) Radio and display receiver assembly (for radio and display type w/o intuitive parking assist system)	Steering Angle Velocity (for 2AR w/ wireless door lock) [EMPS] Steering Angle Velocity (for 2GR-FE) [EMPS] Steering Angle Sensor [ABS/VSC/TRAC] Steering Angle [Blind Spot Monitor Master]
Yaw rate sensor	Airbag sensor assembly	Brake actuator assembly (skid control ECU)	ECM (2AR-FE/2GR-FE)	Yaw Rate Sensor [ABS/VSC/TRAC]
Deceleration sensor	Airbag sensor assembly	Brake actuator assembly (skid control ECU)	ECM (2AR-FE/2GR-FE)	Deceleration Sensor [ABS/VSC/TRAC] Deceleration Sensor2 [ABS/VSC/TRAC]
Turn signal	Combination meter assembly	Blind spot monitor sensor RH	-	Turn Signal Switch (Left) [Combination Meter] Turn Signal Switch (Right) [Combination Meter] Master Side Turn Switch [Blind Spot Monitor Master]
Combination meter assembly power source voltage*1	Combination meter assembly	-	-	+B Voltage Value [Combination Meter]
Power steering ECU assembly power source voltage*1	Power steering ECU assembly	-	-	IG Power Supply [EMPS]
Solar sensor*1	Air conditioning amplifier assembly (for Automatic Air Conditioning System)	-	-	Solar Sensor (D side) (for Automatic Air Conditioning System) [Air Conditioner]
Ignition switch condition*1	Smart key ECU assembly (certification ECU)	-	-	Ignition Switch [Smart Key]
Clearance sonar main switch*1	Clearance warning ECU assembly	-	-	Main Switch [Intuitive P/A]
ECM power source voltage*1	ECM	-	-	Battery Voltage (for 2GR-FE) [Engine] Battery Voltage (for 2AR-FE) [Engine and ECT]
Navigation receiver assembly (for navigation receiver type) power source voltage*1	Navigation receiver assembly (for navigation receiver type)	-	-	Battery Voltage [Navigation System]
Navigation ECU sub-assembly (for radio and display type w/ intuitive parking assist system) power source voltage*1	Radio and display receiver assembly (for radio and display type w/ intuitive parking assist system)	-	-	Battery Voltage [Navigation System]
Radio and display receiver assembly (for radio and display type w/o intuitive parking assist system) power source voltage*1	Radio and display receiver assembly (for radio and display type w/o intuitive parking assist system)	-	-	Battery Voltage [Navigation System]
Blind spot monitor sensor RH power source voltage*1	Blind spot monitor sensor RH	-	-	Power Supply Voltage [Blind Spot Monitor Master]

*1: Whether the ECU that sends data is functioning or not can be judged by using the Techstream 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.

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

Tech Tips

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

Note

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

Tech Tips

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

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

According to the display on the Techstream, 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	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 indicates higher than 135°C (275°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 status/ ON or OFF	ON: Shift lever in P or N	-
Ambient Temp for A/C	Ambient temperature for A/C/ Min.: -40°C (-40°F), Max.: 215°C (419°F)	-	-

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

Tech Tips

Note

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

Tech Tips

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

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

According to the display on the Techstream, 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	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 indicates higher than 135°C (275°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 status/ ON or OFF	ON: Shift lever in P or N	-
Ambient Temp for A/C	Ambient temperature for A/C/ Min.: -40°C (-40°F), Max.: 215°C (419°F)	-	-

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

Tech Tips

Note

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

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

According to the display on the tester, perform the Data List.

ABS/VSC/TRAC
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Deceleration Sensor	Acceleration sensor reading / Min.: -18.525 m/s², Max.: 18.387 m/s²	-	During deceleration/acceleration: Changes continuously
Deceleration Sensor2	Acceleration sensor 2 reading / Min.: -18.525 m/s², Max.: 18.387 m/s²	-	During deceleration/acceleration: Changes continuously
Yaw Rate Sensor	Yaw rate sensor / Min.: -128 degrees/s, Max.: 127 degrees/s	Vehicle stopped: 0 degrees/s Turning right: -128 to 0 degrees/s Turning left: 0 to 127 degrees/s	-
Steering Angle Sensor	Steering angle sensor / Min.: -3276.8 degrees, Max.: 3276.7 degrees	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
Shift Lever Position	Shift lever position information / P,N, R, D/M, 1st-6th/B or Fail	Actual shift lever position	-
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%	When the accelerator pedal is released: 0.0%	During accelerator pedal operation: Changes in proportion with the pedal movement

Details of relevant Data List items (Selected system: EMPS) (for 2AR w/o wireless door lock)

Tech Tips

Note

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

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

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

EMPS
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Meter Vehicle Velocity	Vehicle speed from meter/ Min.: 0 km/h (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 constant speed
Engine Revolution	Engine speed/ Min.: 0 rpm Max.: 12800 rpm	No significant fluctuation	Engine running at a constant speed
IG Power Supply	ECU power source voltage/ Min.: 0 V Max.: 20.1531 V	9 to 16 V	Ignition switch ON

Details of relevant Data List items (Selected system: EMPS) (for 2AR w/ wireless door lock)

Tech Tips

Note

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

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

According to the display on the Techstream, read the Data List.

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

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

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

According to the display on the Techstream, read the Data List.

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

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

According to the display on the Techstream, 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 in any position other than R	-

Details of relevant Data List items (Selected system: Intuitive P/A)

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 Techstream to the DLC3.
Turn the engine switch to on (IG).
Turn the clearance sonar main switch on.
Turn the Techstream on.
Enter the following menus: Body Electrical / Intuitive P/A / Data List.

According to the display on the Techstream, read the Data List.

Intuitive P/A
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 other than P ON: Shift lever in P	-
Reverse Signal	Reverse signal/OFF or ON	OFF: Shift lever in any position other than R ON: Shift lever in R	-
Vehicle Speed Info	Vehicle speed signal/Snr Stop or Snr Work	Snr Stop: Vehicle speed approximately 13 km/h (8.1 mph) or more (when accelerating) or approximately 9 km/h (5.6 mph) or more (when decelerating) Snr Work: Vehicle speed less than approximately 13 km/h (8.1 mph) (when accelerating) or less than approximately 9 km/h (5.6 mph) (when decelerating)	-

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

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

Read the Data List according to the display on the Techstream.

Blind Spot Monitor Master
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Master Side Turn Switch	Master side turn switch / OFF or ON	ON: Right turn switch on OFF: Right turn switch off	For models that receive signals via CAN, OFF is always displayed.
Reverse	State of the Shift Position R Signal / OFF or ON	ON: Shift lever in R OFF: Shift lever in any position other than R	-
Vehicle Speed	Vehicle speed signal / Min.: 0 km/h (0 mph), Max.: 326 km/h (203 mph)	Vehicle stopped: 0 km/h (0 mph)	-
Steering Angle	Steering angle sensor / Min.: -3072°, Max.: 3070.5°	Left turn: Increase Right turn: Decrease	-
Power Supply Voltage	Power supply voltage / Min.: 0 V, Max.: 50 V	11 to 14 V	-

Details of relevant Data List items (Selected system: Smart key)

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 Techstream 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 Techstream with the ignition switch off to troubleshoot:

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

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

According to the display on the Techstream, read the Data List.

Smart Key
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Ignition Switch	Engine switch ON / ON or OFF	ON: Engine switch ON 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 key 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. 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 L code stored in the certification ECU (smart key ECU assembly) and the code stored in the steering lock ECU (steering lock actuator assembly) are compared, and if all codes match, the power source mode is considered ON 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 Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Body Electrical / Power Source Control / Data List.

According to the display on the Techstream, 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 Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Body Electrical / Staring Control / Data List.

According to the display on the Techstream, 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.

Warm up the engine.
Turn the ignition switch off.
Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.

Enter the following menus: Body Electrical / Combination Meter / Data List.

Combination Meter
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
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	600 to 700rpm: Idling	-
Coolant Temperature	Engine coolant temperature/-40 to 127.5°C (-40 to 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 (Left)	Turn LH signal switch/OFF or ON	OFF: Turn LH switch off	-
Turn Signal Switch (Left)	Turn LH signal switch/OFF or ON	ON: Turn LH switch on	-
Turn Signal Switch (Right)	Turn RH signal switch/OFF or ON	OFF: Turn RH switch off	-
Turn Signal Switch (Right)	Turn RH signal switch/OFF or ON	ON: Turn RH switch on	-

Details of relevant Data List items (Selected system: Air Conditioner) (for Automatic Air Conditioning 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.

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

Check the value(s) by referring to the table below.

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 automatic light control sensor (solar sensor) / Min.: 0 Max.: 255	Driver side automatic light control sensor (solar 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: Air Conditioner) (for Manual Air Conditioning 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.

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

Check the value(s) by referring to the table below.

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	-
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 ECU) (Multiplex Network Body ECU)

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 Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Body Electrical / Main Body ECU (Multiplex Network Body ECU) / Data List.

Read the Data List according to the display on the Techstream.

Main Body (Main Body ECU (Multiplex Network Body ECU))
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
FR Door Courtesy	Front door courtesy light switch RH / ON or OFF	ON: Front door RH closed OFF: Front door RH open	-