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

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

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

Connected to	Code	ECU/Sensor Name	GTS Display	Applicability
-	CGW	Central gateway ECU (network gateway ECU)	-	Installed on all vehicles
V Bus	DLC3	DLC3	-	Installed on all vehicles
Bus 2	ENG	ECM	ECM (Engine)	Installed on all vehicles
	A/C	Air conditioning amplifier assembly	Air Conditioning Amplifier	Installed on all vehicles
	AWD	4 wheel drive control ECU (4WD control ECU)	Four Wheel Drive Control	Installed on all vehicles
	SMT	Certification ECU (smart key ECU assembly)	Certification (Smart)	w/ Entry and Start System
	PPS	Power steering ECU assembly	PPS	Installed on all vehicles
	BRK	Master cylinder solenoid (skid control ECU)	Skid Control (ABS/VSC/TRAC)	except 2TR-FE
	BRK	Brake actuator assembly (skid control ECU)	Skid Control (ABS/VSC/TRAC)	for 2TR-FE
	SRS	Airbag sensor assembly	Airbag	Installed on all vehicles
	STR	Spiral cable with steering angle sensor	Spiral cable (Steering Angle Sensor)	Installed on all vehicles
	MET	Combination meter assembly	Combination Meter	Installed on all vehicles
	TPMS	Tire pressure warning ECU and receiver	Tire Pressure	w/ Tire Pressure Warning System
	LIT	No. 1 headlight ECU sub-assembly LH	Headlight swivel (AFS)	for LED Headlight
	MB	Main body ECU (multiplex network body ECU)	Main Body	Installed on all vehicles
Bus 3	AV	Navigation receiver assembly (EMVN ECU)	Display and Navigation (AVN)	w/ Navigation System
	AV	Radio and display receiver assembly (EMVN ECU)	Display and Navigation (AVN)	w/ Audio and Visual System
	DCM	Telematics transceiver	DCM	w/ Telematics Transceiver
	YGW	Bus buffer ECU	Accessory Gateway	w/ Bus Buffer ECU
Bus 5	PAC	Parking assist ECU	Panoramic View Monitor / Circumference Monitoring Camera Control Module	w/ Parking Assist Monitor System
	DS	Driving support ECU assembly	Driving Support (Cruise Control-ACC)	w/ Pre-crash Safety System
	CS	Clearance warning ECU assembly	Clearance Warning (Clearance Sonar)	w/ TOYOTA Parking Assist-sensor System (w/ Multi-display)
	SBF	Stabilizer control ECU	Stabilizer Control (KDSS)	w/ Kinetic Dynamic Suspension System
	F-CAM	Forward recognition camera	Front Camera Module	w/ Pre-crash Safety System
	BSM	Blind spot monitor sensor LH	Blind Spot Monitor Master	w/ Blind Spot Monitor System
	F-MR	Millimeter wave radar sensor assembly	Front Radar	w/ Pre-crash Safety System
	SUS	Suspension control ECU	Suspension Control (Air Suspension)	w/ Air Suspension System
Sub Bus 1	MB	Main body ECU (multiplex network body ECU)	Main Body	Installed on all vehicles
	DST	Front power seat switch (power seat control ECU)	D-Seat	w/ Seat Memory
	DFL	Outer mirror control ECU assembly LH	Front Door LH/L-Mirror (FL-Door2/L-Mirror)	w/ Reverse Shift-linked Mirror
	DFR	Outer mirror control ECU assembly RH	Front Door RH/R-Mirror (FR-Door2/R-Mirror)	w/ Reverse Shift-linked Mirror
	T&T	Multiplex tilt and telescopic ECU	Multiplex Tilt and Telescopic	for Power Tilt and Power Telescopic Steering Column
	R-CA	Rear television camera assembly	Parking Assist Monitor System / Rear Camera	w/ Multi-terrain Monitor System

CAN BUS CHECK

Tech Tips

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

Using the GTS, select the CAN Bus Check screen.

Note

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

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Tech Tips

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

Explanation of CAN Bus Check Screen
Bus Type	Background Color	Connection Status
Bus	White	Communication has been normal.
	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): Not communicating since the start of the CAN bus check Communication occurred at least once since the start of the CAN bus check, but is currently not occurring.
	Not displayed	Either of the following: The central gateway ECU (network gateway ECU) has an internal malfunction or cannot communicate with the GTS.4 No ECUs or sensors are connected to the bus.5
Sub bus with a gateway function equipped ECU that does not memorize connected ECUs or sensors*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 occurred at least once since the start of the CAN bus check, but is currently not occurring.
	Not displayed	Communication stop has continued since the start of the CAN bus check.*1
Sub bus with a gateway function equipped ECU that memorizes connected ECUs and sensors*3	White	Communication has been normal.
	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): Not communicating since the start of the CAN bus check Communication occurred at least once since the start of the CAN bus check, but is currently not occurring.
	Not displayed	Either of the following: The gateway function equipped ECU cannot communicate with the central gateway ECU (network gateway ECU).6 No ECUs or sensors are connected to the sub bus.7

Gateway function equipped ECUs relay signals between ECUs and sensors connected to different buses.
*1: An ECU or sensor is installed to the vehicle but is not displayed on the "Communication Bus Check" screen.
*2: The gateway function equipped ECU does not memorize ECUs and sensors connected to its respective sub bus.
*3: The gateway function equipped ECU memorizes ECUs and sensors connected to its respective sub bus.
*4: When the central gateway ECU (network gateway ECU) has an internal malfunction or cannot communicate with the GTS, the name of buses, sub buses, ECUs and sensors will not be displayed.
*5: When no ECUs or sensors are connected to a bus, the message "There is no system found on the communication Bus." will be displayed.
*6: When a gateway function equipped ECU cannot communicate with the central gateway ECU (network gateway ECU), the name of sub buses and ECUs or sensors connected to the sub bus will not be displayed.
*7: When no ECUs or sensors are connected to the sub bus, the message "There is no system found on the communication Bus." will be displayed.
If there is no communication between the GTS and the vehicle, or no ECUs or sensors are displayed as connected, check the central gateway ECU (network gateway ECU) and V bus (the bus that connects the DLC3 to the central gateway ECU (network gateway ECU)) for malfunctions.

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

HOW TO INTERPRET CAN BUS CHECK SCREEN

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

Note

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

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

Example: Open in both CAN branch lines of HV on the bus 4

*a	Bus 2	*b	Bus 4
*c	Sub Bus	*d	V Bus
*e	Location of Malfunction	*f	Background color is red

Tech Tips

When there are communication stops, ECUs that are present in the vehicle may not be displayed on the CAN Bus Check screen.

If communication errors for multiple ECUs or sensors are indicated on the CAN Bus Check screen, then a communication stop of the ECU or sensor that shows a more serious communication stop (an ECU or sensor whose background color is red) is suspected.

Example: Open in a CAN branch line for HV on the bus 4

*a	Background color is red	*b	Background color intermittently becomes yellow or red
*c	Not displayed or background color is yellow or red	-	-

Explanation of CAN Bus Check Screen
Bus Type	Background Color	Connection Status
Bus	White	Communication has been normal.
	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): Not communicating since the start of the CAN bus check Communication occurred at least once since the start of the CAN bus check, but is currently not occurring.
	Not displayed	Either of the following: The central gateway ECU (network gateway ECU) has an internal malfunction or cannot communicate with the GTS.4 No ECUs or sensors are connected to the bus.5
Sub bus with a gateway function equipped ECU that does not memorize connected ECUs or sensors*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 occurred at least once since the start of the CAN bus check, but is currently not occurring.
	Not displayed	Communication stop has continued since the start of the CAN bus check.*1
Sub bus with a gateway function equipped ECU that memorizes connected ECUs and sensors*3	White	Communication has been normal.
	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): Not communicating since the start of the CAN bus check Communication occurred at least once since the start of the CAN bus check, but is currently not occurring.
	Not displayed	Either of the following: The gateway function equipped ECU cannot communicate with the central gateway ECU.6 No ECUs or sensors are connected to the sub bus.7

Gateway function equipped ECUs relay signals between ECUs and sensors connected to different buses.
*1: An ECU or sensor is installed to the vehicle but is not displayed on the "Communication Bus Check" screen.
*2: The gateway function equipped ECU does not memorize ECUs and sensors connected to its respective sub bus.
*3: The gateway function equipped ECU memorizes ECUs and sensors connected to its respective sub bus.
*4: When the central gateway ECU (network gateway ECU) has an internal malfunction or cannot communicate with the GTS, the name of buses, sub buses, ECUs and sensors will not be displayed.
*5: When no ECUs or sensors are connected to a bus, the message "There is no system found on the communication Bus." will be displayed.
*6: When a gateway function equipped ECU cannot communicate with the central gateway ECU (network gateway ECU), the name of sub buses and ECUs or sensors connected to the sub bus will not be displayed.
*7: When no ECUs or sensors are connected to the sub bus, the message "There is no system found on the communication Bus." will be displayed.
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 HV is also unstable. In addition, in this example, MB is equipped with a gateway function. Therefore, communication is also unstable between the Sub bus ECUs of MB and the bus 4.
The example in the illustration shows that HV has a red background color on the CAN Bus Check screen. This indicates a more significant communication stop. In this case, a communication stop of HV is suspected.

If a communication error is indicated on both the bus 4 and Sub bus on the CAN Bus Check screen, suspect any communication stop displayed for the bus 4 first.

Example: Open in both CAN branch lines of MB on the bus 4

*a Background color is red *b Not displayed
Tech Tips
- In the CAN bus check, it is possible to confirm the communication status of ECUs connected to the bus after connecting the GTS to the DLC3. As for sub bus, it is possible to confirm which sub bus connected ECUs can communicate with a gateway function equipped ECU on the 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 MB has a gateway function and a communication stop in MB is suspected.
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 MIR-R on the sub bus

*a Background color is red - -
Tech Tips
- A communication error in a sub bus does not affect the other buses.
- When a gateway function equipped ECU has memorized the ECUs that are connected to the sub bus, if any of the ECUs connected to the gateway function equipped ECU has a communication error, the background color changes to yellow or red. (The displayed name will not disappear.)

If both of the bus 2 main bus lines are open, ECUs or sensors that are located farther away from the central gateway ECU (network gateway ECU) than the open part will be displayed as a communication stop on the CAN Bus Check screen.

(In this case, HVB, R-MGC and ENG background color changes to red.)

*a	Bus 2	*b	Bus 4
*c	Sub Bus	*d	V Bus
*e	Location of Malfunction	*f	Background color is red

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, MIR-L background color changes to red.)

*a	Bus 2	*b	Bus 4
*c	Sub Bus	*d	V Bus
*e	Location of Malfunction	*f	Background color is red

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

*a	When any of the following malfunctions occur on the bus 4	*b	When any of the following malfunctions occur on a sub bus
*c	Background color is red	*d	Not displayed

Tech Tips

When a malfunction occurs in the bus, almost all ECUs and sensors on the 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 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 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.

If a communication error of all ECUs and sensors is indicated on the CAN Bus Check screen, a communication stop of the V bus (DLC3 - central gateway ECU (network gateway ECU)) is suspected.

Open in both CAN branch lines in the V bus

*a	Bus 2	*b	Bus 4
*c	Sub Bus	*d	V Bus
*e	Location of Malfunction	*f	Not displayed

Tech Tips

When there is no communication between the GTS and the vehicle, no ECUs or sensors will be displayed.

DTC TABLE BY ECU

Tech Tips

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

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If there is a malfunction currently, DTCs can be checked by performing steps in the DTC check procedure.

ECM

GTS Display "Engine and ECT"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0129	Lost Communication with Brake System Control Module	Either of the following conditions is met: Communication stop occurs between the ECM and skid control ECU for approximately 3 seconds or more. Communication stop occurs between the ECM and skid control ECU for approximately 13 seconds or more.	All conditions are met: Approximatel 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the ECM is 10.5 V or higher.	Turn the ignition switch to ON and wait at least approximately 16 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U010E*	Lost Communication with Reductant Control Module	Communication stop occurs between the ECM and urea pump control ECU continuously for approximately 2 seconds or more.	All conditions are met: Approximatel 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the ECM is 10.5 V or higher.	Turn the ignition switch to ON and wait at least approximately 5 seconds.	MIL illuminates.	-	DTC is stored until it is cleared using the GTS.
U029D*	Lost Communication with NOx Sensor "A"	Communication stop occurs between the ECM and nitrogen oxides sensor continuously for approximately 2 seconds or more.	All conditions are met: Approximatel 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the ECM is 10.5 V or higher.	Turn the ignition switch to ON and wait at least approximately 5 seconds.	MIL illuminates.	-	DTC is stored until it is cleared using the GTS.

*: Refer to ECD System (for 1GD-FTV with Urea SCR)

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GTS Display "Radar Cruise1" (w/ Pre-crash Safety System)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication With ECM/PCM "A"	The ECM is unable to receive certain data from the skid control ECU for 1 second or more.	All conditions are met: The ignition switch to ON. The radar cruise control system (vehicle control mode) is operating.	Allow the radar cruise control system (vehicle control mode) to operate for 1 second or more.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0122	Lost Communication with Vehicle Dynamics Control Module	When the vehicle speed is 50 km/h (31 mph) or more and is being controlled by the cruise control system in vehicle-to-vehicle distance control mode, the ECM does not receive data from the skid control ECU for approximately 3 seconds or more.	All conditions are met: The ignition switch to ON. The radar cruise control system (vehicle control mode) is operating.	Allow the radar cruise control system (vehicle control mode) to operate for approximately 3 seconds or more	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1104	Lost Communication with Driving Support ECU	The driving support ECU assembly data sent to the ECM, skid control ECU or millimeter wave radar sensor assembly is lost for 1 second or more.	All conditions are met: The ignition switch to ON. The radar cruise control system (vehicle control mode) is operating.	Allow the radar cruise control system (vehicle control mode) to operate for 1 second or more.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

GTS Display "Cruise Control" (w/ Cruise Control System)

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed	DTC Storage Method
U0122	Lost Communication with Vehicle Dynamics Control Module	The ECM does not receive data from the skid control ECU for approximately 3 seconds	All conditions are met: 1 second elapse after turning the ignition switch to ON. The cruise control switch is on The ECM power supply voltage is 10.5 V or higher.	Allow the cruise control system to operate for approximately 4 seconds or more.	The cruise control main indicator illuminates in yellow.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

DTC

Detection Item

DTC Detection Condition

DTC Detection Pre-condition

DTC Check Procedure

Warning Displayed

DTC Storage Method

Indication in Meter

Multi-information Display

U0122

Lost Communication with Vehicle Dynamics Control Module

The ECM does not receive data from the skid control ECU for approximately 3 seconds

All conditions are met:

1 second elapse after turning the ignition switch to ON.
The cruise control switch is on
The ECM power supply voltage is 10.5 V or higher.

Allow the cruise control system to operate for approximately 4 seconds or more.

The cruise control main indicator illuminates in yellow.

Displays messages on the multi-information display.

DTC is stored until it is cleared using the GTS.

GTS Display "ECT"

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed	DTC Storage Method
U0100	Lost Communication With ECM/PCM "A"	The ECM is unable to receive certain data from the skid control ECU for 1 second or more.	All conditions are met: The ignition switch to ON. The radar cruise control system (vehicle control mode) is operating.	Allow the radar cruise control system (vehicle control mode) to operate for 1 second or more.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

DTC

Detection Item

DTC Detection Condition

DTC Detection Pre-condition

DTC Check Procedure

Warning Displayed

DTC Storage Method

Indication in Meter

Multi-information Display

U0100

Lost Communication With ECM/PCM "A"

The ECM is unable to receive certain data from the skid control ECU for 1 second or more.

All conditions are met:

The ignition switch to ON.
The radar cruise control system (vehicle control mode) is operating.

Allow the radar cruise control system (vehicle control mode) to operate for 1 second or more.

Displays messages on the multi-information display.

DTC is stored until it is cleared using the GTS.

Brake Actuator Assembly (Skid Control ECU) / GTS Display "ABS/VSC/TRC" (for 2TR-FE)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0073	Control Module Communication Bus OFF	Either of the following conditions is met: The response sent to the skid control ECU from the spiral cable with steering angle sensor is invalid for 1 second or more. The response sent to the skid control ECU from the airbag sensor assembly is invalid for 1 second or more. The following condition occurs 10 times consecutively within 60 seconds: The response sent to the skid control ECU from the airbag sensor assembly is invalid at least once within 5 seconds. The response sent to the skid control ECU from the spiral cable with steering angle sensor is invalid at least once within 5 seconds. The skid control ECU cannot send or receive data (the bus is off) 10 times consecutively.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the skid control ECU is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least approximately 60 seconds.	ABS warning light illuminates. Slip indicator light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0100	Lost Communication with ECM / PCM	Communication stop occurs between the skid control ECU and ECM continuously for 2 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. Vehicle speed is 15 km/h (9 mph) or more. The power source voltage of the skid control ECU is between 10 and 17.4 V.	Drive the vehicle for 3 seconds or more at a speed of 15 km/h (9 mph) or more.	Slip indicator light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0114	Lost Communication with Four-Wheel Drive Clutch Control Module	Communication stop occurs between the skid control ECU and 4 wheel drive control ECU (4WD control ECU) continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the skid control ECU is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least approximately 2 seconds.	ABS warning light illuminates. Slip indicator light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS or the ignition switch off.
U0123	Lost Communication with Yaw Rate Sensor Module	Either of the following conditions is met: Communication stop occurs between the skid control ECU and airbag sensor assembly (yaw rate sensor) continuously for 1 second or more. The following condition occurs 10 times consecutively within 60 seconds: The response sent to the skid control ECU from the airbag sensor assembly (yaw rate sensor) is invalid at least once within 5 seconds.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the skid control ECU is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least approximately 60 seconds.	Slip indicator light illuminates.	-	DTC is stored until it is cleared using the GTS or the ignition switch off.
U0124	Lost Communication with Lateral Acceleration Sensor Module	Either of the following conditions is met: Communication stop occurs between the skid control ECU and airbag sensor assembly (acceleration sensor) continuously for 1 second or more. The following condition occurs 10 times consecutively within 60 seconds: The response sent to the skid control ECU from the airbag sensor assembly (acceleration sensor) is invalid at least once within 5 seconds.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the skid control ECU is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least approximately 60 seconds.	ABS warning light illuminates. Slip indicator light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Either of the following conditions is met: Communication stop occurs between the skid control ECU and spiral cable with steering angle sensor continuously for 1 second or more. The following condition occurs 10 times consecutively within 60 seconds: The response sent to the skid control ECU from the spiral cable with steering angle sensor is invalid at least once within 5 seconds.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the skid control ECU is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least approximately 60 seconds.	Slip indicator light illuminates.	-	DTC is stored until it is cleared using the GTS.

Master Cylinder Solenoid (Skid Control ECU) / GTS Display "ABS/VSC/TRC" (except 2TR-FE)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0073	Control Module Communication Bus OFF	Either of the following conditions is met: The response sent to the skid control ECU from the spiral cable with steering angle sensor is invalid for 1 second or more. The response sent to the skid control ECU from the airbag sensor assembly is invalid for 1 second or more. The following condition occurs 10 times consecutively within 60 seconds: The response sent to the skid control ECU from the airbag sensor assembly is invalid at least once within 5 seconds. The response sent to the skid control ECU from the spiral cable with steering angle sensor is invalid at least once within 5 seconds. The skid control ECU cannot send or receive data (the bus is off) 10 times consecutively.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the skid control ECU is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least approximately 60 seconds.	ABS warning light illuminates. Slip indicator light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0100	Lost Communication with ECM / PCM	Communication stop occurs between the skid control ECU and ECM continuously for 2 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. Vehicle speed is 15 km/h (9 mph) or more. The power source voltage of the skid control ECU is between 10 and 17.4 V.	Drive the vehicle for 3 seconds or more at a speed of 15 km/h (9 mph) or more.	Slip indicator light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0114	Lost Communication with Four-Wheel Drive Clutch Control Module	Communication stop occurs between the skid control ECU and 4 wheel drive control ECU (4WD control ECU) continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the skid control ECU is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least approximately 2 seconds.	ABS warning light illuminates. Slip indicator light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS or the ignition switch off.
U0123	Lost Communication with Yaw Rate Sensor Module	Either of the following conditions is met: Communication stop occurs between the skid control ECU and airbag sensor assembly (yaw rate sensor) continuously for 1 second or more. The following condition occurs 10 times consecutively within 60 seconds: The response sent to the skid control ECU from the airbag sensor assembly (yaw rate sensor) is invalid at least once within 5 seconds.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the skid control ECU is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least approximately 60 seconds.	Slip indicator light illuminates.	-	DTC is stored until it is cleared using the GTS or the ignition switch off.
U0124	Lost Communication with Lateral Acceleration Sensor Module	Either of the following conditions is met: Communication stop occurs between the skid control ECU and airbag sensor assembly (acceleration sensor) continuously for 1 second or more. The following condition occurs 10 times consecutively within 60 seconds: The response sent to the skid control ECU from the airbag sensor assembly (acceleration sensor) is invalid at least once within 5 seconds.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the skid control ECU is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least approximately 60 seconds.	ABS warning light illuminates. Slip indicator light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Either of the following conditions is met: Communication stop occurs between the skid control ECU and spiral cable with steering angle sensor continuously for 1 second or more. The following condition occurs 10 times consecutively within 60 seconds: The response sent to the skid control ECU from the spiral cable with steering angle sensor is invalid at least once within 5 seconds.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the skid control ECU is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least approximately 60 seconds.	Slip indicator light illuminates.	-	DTC is stored until it is cleared using the GTS.

Combination Meter Assembly / GTS Display "Combination Meter"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM / PCM "A"	Communication stop occurs between the combination meter assembly and ECM continuously for 2 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the combination meter assembly is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 3 seconds.	MIL (Check malfunction indicator lamp) illuminates.	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Cotrol Module	Either of the following conditions is met: Communication stop occurs between the combination meter assembly and skid control ECU continuously for 2 seconds or more. Communication stop occurs between the combination meter assembly and skid control ECU continuously for 3 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the combination meter assembly is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 3 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0131	Lost Communication with Power Steering Control Module	Communication stop occurs between the combination meter assembly and power steering ECU assembly continuously for 3 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the combination meter assembly is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 3 seconds.	PPS warning light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the combination meter assembly and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the combination meter assembly is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0151	Lost Communication with Restrants Control Module	Communication stop occurs between the combination meter assembly and airbag sensor assembly continuously for 10 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the combination meter assembly is 9.5 V or higher.	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 GTS.
U0163	Lost Communication with Navigation Control Module	Either of the following conditions is met: Communication stop occurs between the combination meter assembly and the radio and display receiver assembly (EMVN ECU) continuously for 3 seconds or more. Communication stop occurs between the combination meter assembly and navigation receiver assembly (EMVN ECU) continuously for 3 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the combination meter assembly is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 3 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0182	Lost Communication with Lighting Control Module Front	Communication stop occurs between the combination meter assembly and No. 1 headlight ECU sub-assembly LH continuously for 10 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the combination meter assembly is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U023A	Lost Communication with Front Camera Module	Communication stop occurs between the combination meter assembly and forward recognition camera continuously for 10 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the combination meter assembly is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1104	Lost Communication with Driving Support ECU	Communication stop occurs between the combination meter assembly and driving support ECU assembly continuously for 10 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the combination meter assembly is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 10 seconds.	PCS warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Air Conditioning Amplifier Assembly / GTS Display "Air Conditioner"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM	Communication stop occurs between the air conditioning amplifier assembly and ECM continuously for 5 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the air conditioning amplifier assembly is 10 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Main Body ECU	Communication stop occurs between the air conditioning amplifier assembly and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the air conditioning amplifier assembly is 10 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Combination Meter	Communication stop occurs between the air conditioning amplifier assembly and combination meter assembly continuously for 5 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the air conditioning amplifier assembly is 10 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0163	Lost Communication with Navigation Control Module	Either of the following conditions is met: Communication stop occurs between the air conditioning amplifier assembly and the radio and display receiver assembly (EMVN ECU) continuously for 5 seconds or more. Communication stop occurs between the air conditioning amplifier assembly and navigation receiver assembly (EMVN ECU) continuously for 5 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the air conditioning amplifier assembly is 10 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.

No. 1 Headlight ECU Sub-assembly LH / GTS Display "AFS" (for LED Headlight)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Precondition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Precondition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0073	Control Module Communication Bus Off	The No. 1 headlight ECU sub-assembly LH is unable to send or receive data 10 times consecutively.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The No. 1 headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	The DTC remains stored until it is cleared using the GTS.
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and ECM continuously for 10 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The No. 1 headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	The DTC remains stored until it is cleared using the GTS.
U0101	Lost Communication with TCM	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and ECM continuously for 10 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The No. 1 headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	The DTC remains stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and spiral cable with steering angle sensor continuously for 10 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The No. 1 headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	The DTC remains stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Either of the following conditions is met: Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and skid control ECU continuously for 5 seconds or more. Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and skid control ECU continuously for 10 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The No. 1 headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	The DTC remains stored until it is cleared using the GTS.
U0132	Lost Communication with Ride Level Control Module	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and suspension control ECU continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The No. 1 headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 8 seconds.	-	-	The DTC remains stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The No. 1 headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	The DTC remains stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and combination meter assembly continuously for 10 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The No. 1 headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	The DTC remains stored until it is cleared using the GTS.
U023A	Lost Communication With Image Processing Module "A"	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and forward recognition camera continuously for 10 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The No. 1 headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	The DTC remains stored until it is cleared using the GTS.
U1000*	CAN Communication Failure(Message Registry)	CAN communication malfunction (message register)	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The No. 1 headlight ECU sub-assembly LH power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	The DTC remains stored until it is cleared using the GTS.

*: Refer to the Lighting System

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Power Steering ECU Assembly / GTS Display "PPS"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM / PCM "A"	Communication stop occurs between the power steering ECU assembly and ECM continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the power steering ECU assembly is 10.5 V or higher.	Turn the ignition switch to ON and wait at least approximately 2 seconds.	PPS warning light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the power steering ECU assembly and spiral cable with steering angle sensor continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the power steering ECU assembly is 10.5 V or higher.	Turn the ignition switch to ON and wait at least approximately 2 seconds.	PPS warning light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the power steering ECU assembly and skid control ECU continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the power steering ECU assembly is 10.5 V or higher.	Turn the ignition switch to ON and wait at least approximately 2 seconds.	PPS warning light illuminates.	-	DTC is stored until it is cleared using the GTS.

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

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the main body ECU (multiplex network body ECU) and ECM continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0101	Lost Communication with TCM	Communication stop occurs between the main body ECU (multiplex network body ECU) and ECM continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0120	Lost Communication with Starter / Generator Control Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and certification ECU (smart key ECU assembly) continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and skid control ECU assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the ignition switch is ON. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0151	Lost Communication with Restraints Control Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and airbag sensor assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and combination meter assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	TPMS indicator light blinks, and then illuminates.	-	DTC is stored until it is cleared using the GTS.
U0164	Lost Communication with HVAC Control Module	Communication stop occurs between main body ECU (multiplex network body ECU) and air conditioning amplifier assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the ignition switch is ON. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0182	Lost Communication with AFS	Communication stop occurs between the main body ECU (multiplex network body ECU) and No. 1 headlight ECU sub-assembly LH continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the ignition switch is ON. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	AHB indicator light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0199	Lost Communication with ''Door Control Module A''	Communication stop occurs between the main body ECU (multiplex network body ECU) and outer mirror control ECU assembly RH continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0200	Lost Communication with ''Door Control Module B''	Communication stop occurs between the main body ECU (multiplex network body ECU) and outer mirror control ECU assembly LH continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0208	Lost Communication with ''Seat Control Module A''	Communication stop occurs between the main body ECU (multiplex network body ECU) and front power seat switch (power seat control ECU) continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U023A	Lost Communication With Image Processing Module "A"	Communication stop occurs between the main body ECU (multiplex network body ECU) and forward recognition camera continuously for 5 seconds or more.	All conditions are met: 5 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 10 seconds.	AHB indicator light blinks.	-	DTC is stored until it is cleared using the GTS.
U0265	Lost Communication With Parking Assist Monitor Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and rear television camera assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0327	Software Incompatibility with Vehicle Security Control Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and certification ECU (smart key ECU assembly) continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1002	Lost Communication with Gateway Module	The main body ECU (multiplex network body ECU) detects a problem when communicating with the outer mirror control ECU assembly LH, outer mirror control ECU assembly RH, front power seat switch (power seat control ECU), rear television camera assembly and the multiplex tilt and telescopic ECU.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1115	Lost Communication with Tilt & Telescopic Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and the multiplex tilt and telescopic ECU continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1117	Lost Communication with Accessory Gateway	Communication stop occurs between the main body ECU (multiplex network body ECU) and bus buffer ECU continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Certification ECU (Smart Key ECU Assembly) (w/ Entry and Start System)

GTS Display "Power Source Control"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	ECM Communication	Communication stop occurs between the certification ECU (smart key ECU assembly) and ECM continuously for approximately 4 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or higher.	Turn the ignition switch to ON and wait at least approximately 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0129	Vehicle Speed Signal Communication	The certification ECU (smart key ECU assembly) is unable to receive certain data from the skid control ECU for approximately 4 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or higher.	Turn the ignition switch to ON and wait at least approximately 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module	Communication stop occurs between the certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU) continuously for 3 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 3 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between the certification ECU (smart key ECU assembly) and combination meter assembly continuously for approximately 4 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or higher.	Turn the ignition switch to ON and wait at least approximately 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1117	Lost Communication with Accessory Gateway	Communication stop occurs between the certification ECU (smart key ECU assembly) and bus buffer ECU continuously for 5 seconds or more.	All conditions are met: Ignition switch ON. The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.

GTS Display "Entry&Start"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the certification ECU (smart key ECU assembly) and ECM continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or higher.	Turn the ignition switch to ON or ACC, and then wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B	Communication stop occurs between the certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or higher.	Turn the ignition switch to ON or ACC, and then wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between the certification ECU (smart key ECU assembly) and combination meter assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or higher.	Turn the ignition switch to ON or ACC, and then wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1117	Lost Communication with Accessory Gateway	Communication stop occurs between the certification ECU (smart key ECU assembly) and bus buffer ECU continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or higher.	Turn the ignition switch to ON or ACC, and then wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.

GTS Display "Starting Control"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the certification ECU (smart key ECU assembly) and ECM continuously for 2 seconds or more.	Ignition switch ON.	Turn the ignition switch to ON and wait at least 2 second.	-	-	DTC remains stored only while malfunction is occurring.

Radio and Display Receiver Assembly (EMVN ECU) / GTS Display "Navigation System" (w/ Audio and Visual System)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0073	Sending Malfunction (Navigation to APGS)	The radio and display receiver assembly (EMVN ECU) is unable to send or receive data 5 times consecutively.	Ignition switch ON.	Turn the ignition switch to ON and wait at least 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0100	Engine ECU Communication	Either of the following conditions is met: Communication stop occurs between the radio and display receiver assembly (EMVN ECU) and ECM continuously for approximately 1 second or more. Data from the ECM cannot be a received by the radio and display receiver assembly (EMVN ECU) at vehicle speed of 20 km/h (12 mph) or more continuously for 10 seconds or more.	Ignition switch ON.	Drive the vehicle for 10 seconds or more at a speed of 20 km/h (12 mph) or more.	-	-	DTC is stored until it is cleared using the GTS.
U0126	Steering Sensor Communication	Either of the following conditions is met: Communication stop occurs between the radio and display receiver assembly (EMVN ECU) and spiral cable with steering angle sensor continuously for approximately 1 second or more. Communication stop occurs between the radio and display receiver assembly (EMVN ECU) and spiral cable with steering angle sensor continuously for approximately 11 seconds or more.	Ignition switch ON.	Turn the ignition switch to ON and wait at least approximately 11 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the radio and display receiver assembly (EMVN ECU) and skid control ECU continuously for 1 second or more.	Ignition switch ON.	Turn the ignition switch to ON and wait at least 1 second.	-	-	DTC is stored until it is cleared using the GTS.
U0132	Air Suspension ECU Communication	Data from the suspension control ECU cannot be a received by the radio and display receiver assembly (EMVN ECU) at vehicle speed of 20 km/h (12 mph) or more continuously for 10 seconds or more.	Ignition switch ON.	Drive the vehicle for 10 seconds or more at a speed of 20 km/h (12 mph) or more.	-	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	Communication stop occurs between the radio and display receiver assembly (EMVN ECU) and main body ECU (multiplex network body ECU) continuously for 3 seconds or more.	Ignition switch ON.	Turn the ignition switch to ON and wait at least 3 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0155	Meter ECU Communication	Communication stop occurs between the radio and display receiver assembly (EMVN ECU) and combination meter assembly continuously for 30 seconds or more.	Ignition switch ON.	Turn the ignition switch to ON and wait at least 30 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0164	Air Conditioner ECU Communication	Either of the following conditions is met: Communication stop occurs between the radio and display receiver assembly (EMVN ECU) and air conditioning amplifier assembly continuously for 10 seconds or more. Data from the air conditioning amplifier assembly cannot be a received by the radio and display receiver assembly (EMVN ECU) at vehicle speed of 20 km/h (12 mph) or more continuously for 10 seconds or more.	Ignition switch ON.	Drive the vehicle for 10 seconds or more at a speed of 20 km/h (12 mph) or more.	-	-	DTC is stored until it is cleared using the GTS.
U1110	Clearance Sonar ECU Communication	Communication stop occurs between the radio and display receiver assembly (EMVN ECU) and clearance warning ECU assembly continuously for 10 seconds or more.	Ignition switch ON.	Turn the ignition switch to ON and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Navigation Receiver Assembly (EMVN ECU) / GTS Display "Navigation System" (w/ Navigation System)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0073	Sending Malfunction (Navigation to APGS)	The navigation receiver assembly (EMVN ECU) is unable to send or receive data 5 times consecutively.	Ignition switch ON.	Turn the ignition switch to ON and wait at least 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0100	Engine ECU Communication	Either of the following conditions is met: Communication stop occurs between the navigation receiver assembly (EMVN ECU) and ECM continuously for approximately 1 second or more. Data from the ECM cannot be a received by the navigation receiver assembly (EMVN ECU) at vehicle speed of 20 km/h (12 mph) or more continuously for 10 seconds or more.	Ignition switch ON.	Drive the vehicle for 10 seconds or more at a speed of 20 km/h (12 mph) or more.	-	-	DTC is stored until it is cleared using the GTS.
U0126	Steering Sensor Communication	Either of the following conditions is met: Communication stop occurs between the navigation receiver assembly (EMVN ECU) and spiral cable with steering angle sensor continuously for approximately 1 second or more. Communication stop occurs between the navigation receiver assembly (EMVN ECU) and spiral cable with steering angle sensor continuously for approximately 11 seconds or more.	Ignition switch ON.	Turn the ignition switch to ON and wait at least approximately 11 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the navigation receiver assembly (EMVN ECU) and skid control ECU continuously for 1 second or more.	Ignition switch ON.	Turn the ignition switch to ON and wait at least 1 second.	-	-	DTC is stored until it is cleared using the GTS.
U0132	Air Suspension ECU Communication	Data from the suspension control ECU cannot be a received by the navigation receiver assembly (EMVN ECU) at vehicle speed of 20 km/h (12 mph) or more continuously for 10 seconds or more.	Ignition switch ON.	Drive the vehicle for 10 seconds or more at a speed of 20 km/h (12 mph) or more.	-	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	Communication stop occurs between the navigation receiver assembly (EMVN ECU) and main body ECU (multiplex network body ECU) continuously for 3 seconds or more.	Ignition switch ON.	Turn the ignition switch to ON and wait at least 3 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0155	Meter ECU Communication	Communication stop occurs between the navigation receiver assembly (EMVN ECU) and combination meter assembly continuously for 30 seconds or more.	Ignition switch ON.	Turn the ignition switch to ON and wait at least 30 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0164	Air Conditioner ECU Communication	Either of the following conditions is met: Communication stop occurs between the navigation receiver assembly (EMVN ECU) and air conditioning amplifier assembly continuously for 10 seconds or more. Data from the air conditioning amplifier assembly cannot be a received by the navigation receiver assembly (EMVN ECU) at vehicle speed of 20 km/h (12 mph) or more continuously for 10 seconds or more.	Ignition switch ON.	Drive the vehicle for 10 seconds or more at a speed of 20 km/h (12 mph) or more.	-	-	DTC is stored until it is cleared using the GTS.
U1110	Clearance Sonar ECU Communication	Communication stop occurs between the navigation receiver assembly (EMVN ECU) and clearance warning ECU assembly continuously for 10 seconds or more.	Ignition switch ON.	Turn the ignition switch to ON and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Telematics Transceiver / GTS Display "Telematics" (w/ Telematics Transceiver)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the telematics transceiver and ECM continuously for 15 seconds or more.	10 seconds or more elapse after the ignition switch is ON.	Turn the ignition switch to ON and wait at least 25 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Suspension Control ECU / GTS Display "Air suspension" (w/ Air Suspension System)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the suspension control ECU and ECM continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. Vehicle speed is 30 km/h (19 mph) or more. The power source voltage of the suspension control ECU is 10 V or higher.	Drive the vehicle for 4 seconds or more at a speed of 30 km/h (19 mph) or more.	-	-	DTC is stored until it is cleared using the GTS.
U0114	Lost Communication with Four-Wheel Drive Clutch Control Module	Communication stop occurs between the suspension control ECU and 4 wheel drive control ECU (4WD control ECU) continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the suspension control ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0122	Lost Communication with Vehicle Dynamics Control Module	Communication stop occurs between the suspension control ECU and skid control ECU continuously for 3 seconds or more.	All conditions are met: 2 seconds or more elapse after the ignition switch is ON. The power source voltage of the suspension control ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0124	Lost Communication with Lateral Acceleration Sensor Module	Communication stop occurs between the suspension control ECU and airbag sensor assembly continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the suspension control ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the suspension control ECU and spiral cable with steering angle sensor continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the suspension control ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	Communication stop occurs between the suspension control ECU and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the suspension control ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 11 seconds.	-	-	DTC is stored until it is cleared using the GTS.

4 Wheel Drive Control ECU (4WD Control ECU) / GTS Display "Four Wheel Drive"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM / PCM "A"	Either of the following conditions is met: Communication stop occurs between the 4 wheel drive control ECU (4WD control ECU) and ECM continuously for approximately 2 seconds or more. Communication stop occurs between the 4 wheel drive control ECU (4WD control ECU) and ECM continuously for approximately 6 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the 4 wheel drive control ECU (4WD control ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least approximately 9 seconds.	4LO indicator light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0122	Lost Communication with Vehicle Dynamics Control Module	Communication stop occurs between the 4 wheel drive control ECU (4WD control ECU) and skid control ECU continuously for approximately 1 second or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the 4 wheel drive control ECU (4WD control ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least approximately 4 seconds.	4LO indicator light blinks. Center Differential Lock indicator light blinks. Rear Differential Lock indicator light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0416*	Invalid Data Received from Vehicle Dynamics Control Module	Wheel speed sensor maifunction signals from skid control ECU are received for approximatety 1 second or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the 4 wheel drive control ECU (4WD control ECU) is 10 V or higher.	Turn the ignition switch to ON and wait at least approximately 4 seconds.	4LO indicator light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

*: Refer to Transfer System

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Driving Support ECU Assembly (w/ Pre-crash Safety System)

GTS Display "Radar Cruise2"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the driving support ECU assembly and ECM continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. Vehicle speed is 36 km/h (22 mph) or more. The power source voltage of the driving support ECU assembly is 10 V or higher.	Drive the vehicle for approximately 2 seconds or more at a speed of 36 km/h (22 mph) or higher.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0125	Lost Communication with Yaw Rate Sensor Module	Communication stop occurs between the driving support ECU assembly and airbag sensor assembly continuously for approximately 1 second or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. Vehicle speed is 36 km/h (22 mph) or more. The power source voltage of the driving support ECU assembly is 10 V or higher.	Drive the vehicle for approximately 4 seconds or more at a speed of 36 km/h (22 mph) or higher.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the driving support ECU assembly and spiral cable with steering angle sensor continuously for approximately 6 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. Vehicle speed is 36 km/h (22 mph) or more. The power source voltage of the driving support ECU assembly is 10 V or higher.	Drive the vehicle for approximately 7 seconds or more at a speed of 36 km/h (22 mph) or higher.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the driving support ECU assembly and skid control ECU continuously for approximately 2 seconds or more.	All conditions are met: 2 seconds or more elapse after the ignition switch is ON. Vehicle speed is 36 km/h (22 mph) or more. The power source voltage of the driving support ECU assembly is 10 V or higher.	Drive the vehicle for approximately 4 seconds or more at a speed of 36 km/h (22 mph) or higher.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	Communication stop occurs between the driving support ECU assembly and millimeter wave radar sensor assembly continuously for approximately 2 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. Vehicle speed is 36 km/h (22 mph) or more. The power source voltage of the driving support ECU assembly is 10 V or higher.	Drive the vehicle for approximately 3 seconds or more at a speed of 36 km/h (22 mph) or higher.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1104	Lost Communication with Driving Support ECU	The driving support ECU assembly data sent to the millimeter wave radar sensor assembly is lost for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. Vehicle speed is 36 km/h (22 mph) or more. The power source voltage of the driving support ECU assembly is 10 V or higher.	Drive the vehicle for approximately 2 seconds or more at a speed of 36 km/h (22 mph) or higher.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

GTS Display "Pre-Crash 2"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the driving support ECU assembly and ECM continuously for approximately 4 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. Vehicle speed is 5 km/h (3 mph) or more. The power source voltage of the driving support ECU assembly is 10 V or higher.	Drive the vehicle for approximately 7 seconds or more at a speed of 5 km/h (3 mph) or higher.	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0125	Lost Communication with Yaw Rate Sensor Module	Communication stop occurs between the driving support ECU assembly and airbag sensor assembly continuously for approximately 1 second or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the driving support ECU assembly is 10 V or higher.	Turn the ignition switch to ON and wait at least approximately 4 seconds.	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the driving support ECU assembly and spiral cable with steering angle sensor continuously for approximately 4 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the driving support ECU assembly is 10 V or higher.	Turn the ignition switch to ON and wait at least approximately 7 seconds.	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the driving support ECU assembly and skid control ECU continuously for 3 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the driving support ECU assembly is 10 V or higher.	Turn the ignition switch to ON and wait at least 6 seconds.	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	Communication stop occurs between the driving support ECU assembly and millimeter wave radar sensor assembly continuously for approximately 1 second or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the driving support ECU assembly is 10 V or higher.	Turn the ignition switch to ON and wait at least approximately 4 seconds.	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U023A	Lost Communication with Image Processing Module "A"	Communication stop occurs between the driving support ECU assembly and forward recognition camera continuously for 3 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the driving support ECU assembly is 10 V or higher.	Turn the ignition switch to ON and wait at least 6 seconds.	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1002	Lost Communication with Gateway Module	The driving support ECU assembly detects a problem when communicating with the outer mirror control ECU assembly LH, outer mirror control ECU assembly RH, front power seat switch (power seat control ECU), rear television camera assembly and the multiplex tilt and telescopic ECU.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the driving support ECU assembly is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1104	Lost Communication with Driving Support ECU	The driving support ECU assembly data sent to millimeter wave radar sensor assembly and forward recognition camera is lost for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the driving support ECU assembly is 10 V or higher.	Turn the ignition switch to ON and wait at least approximately 2 seconds.	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1104	Lost Communication with Driving Support ECU	The driving support ECU assembly data sent to skid control ECU is lost for approximately 2 seconds or more.	All conditions are met: 2 seconds or more elapse after the ignition switch is ON. The power source voltage of the driving support ECU assembly is 10 V or higher.	Turn the ignition switch to ON and wait at least approximately 4 seconds.	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Forward Recognition Camera (w/ Pre-crash Safety System)

GTS Display "Front Recognition Camera"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the forward recognition camera and ECM continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. Vehicle speed is 1 km/h (1 mph) or more. The power source voltage of the forward recognition camera is 10 V or higher.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U0101	Lost Communication with TCM	Communication stop occurs between the forward recognition camera and ECM continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. Vehicle speed is 1 km/h (1 mph) or more. The power source voltage of the forward recognition camera is 10 V or higher.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	-	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U0123	Lost Communication with Yaw Rate Sensor Module	Communication stop occurs between the forward recognition camera and airbag sensor assembly continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. Vehicle speed is 1 km/h (1 mph) or more. The power source voltage of the forward recognition camera is 10 V or higher.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the forward recognition camera and skid control ECU continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The power source voltage of the forward recognition camera is 10 V or higher.	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the forward recognition camera and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The power source voltage of the forward recognition camera is 10 V or higher.	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U0182	Lost Communication with Lighting Control Module Front	Communication stop occurs between the forward recognition camera and No. 1 headlight ECU sub-assembly LH continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The power source voltage of the forward recognition camera is 10 V or higher.	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	-	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	Communication stop occurs between the forward recognition camera and millimeter wave radar sensor assembly continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The power source voltage of the forward recognition camera is 10 V or higher.	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U1104	Lost Communication with Driving Support ECU	The forward recognition camera data sent to the driving support ECU assembly is lost for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The power source voltage of the forward recognition camera is 10 V or higher.	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	PCS indicator light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.

GTS Display "LKA/LDA"

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the forward recognition camera and ECM continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. Vehicle speed is 1 km/h (1 mph) or more. The power source voltage of the forward recognition camera is 10 V or higher.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	LDA indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0101	Lost Communication with TCM	Communication stop occurs between the forward recognition camera and ECM continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. Vehicle speed is 1 km/h (1 mph) or more. The power source voltage of the forward recognition camera is 10 V or higher.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	LDA indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0123	Lost Communication with Yaw Rate Sensor Module	Communication stop occurs between the forward recognition camera and airbag sensor assembly continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. Vehicle speed is 1 km/h (1 mph) or more. The power source voltage of the forward recognition camera is 10 V or higher.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	LDA indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the forward recognition camera and spiral cable with steering angle sensor continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The power source voltage of the forward recognition camera is 10 V or higher.	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	LDA indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the forward recognition camera and skid control ECU continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The power source voltage of the forward recognition camera is 10 V or higher.	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	LDA indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the forward recognition camera and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The power source voltage of the forward recognition camera is 10 V or higher.	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	LDA indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication With Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between the forward recognition camera and combination meter assembly continuously for 50 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The power source voltage of the forward recognition camera is 10 V or higher.	Wait at least approximately 52 seconds with the IG voltage at 10 V or higher.	LDA indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	Communication stop occurs between the forward recognition camera and millimeter wave radar sensor assembly continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The power source voltage of the forward recognition camera is 10 V or higher.	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	LDA indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1104	Lost Communication with Driving Support ECU	Communication stop occurs between the forward recognition camera and driving support ECU assembly continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The power source voltage of the forward recognition camera is 10 V or higher.	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	LDA indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

GTS Display "Road Sign Assist" (w/ Road Sign Assist System)

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the forward recognition camera and ECM continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The vehicle speed is 1 km/h (1 mph) or more.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0101	Lost Communication with TCM	Communication stop occurs between the forward recognition camera and ECM continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The vehicle speed is 1 km/h (1 mph) or more.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0123	Lost Communication with Yaw Rate Sensor Module	Communication stop occurs between the forward recognition camera and airbag sensor assembly continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON. The vehicle speed is 1 km/h (1 mph) or more.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the forward recognition camera and skid control ECU continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON.	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the forward recognition camera and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON.	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module (Combination Meter)	Communication stop occurs between the forward recognition camera and combination meter assembly continuously for 50 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the ignition switch is turned to ON.	Wait at least approximately 52 seconds with the IG voltage at 10 V or higher.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Clearance warning ECU assembly / GTS Display "Clearance Sonar" (w/ TOYOTA Parking Assist-sensor System [w/ Multi-display])

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the clearance warning ECU assembly and ECM continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the clearance warning ECU assembly is 10.2 V or higher.	Turn the ignition switch to ON and wait at least 8 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0101	Lost Communication with TCM	Communication stop occurs between the clearance warning ECU assembly and ECM continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the clearance warning ECU assembly is 10.2 V or higher.	Turn the ignition switch to ON and wait at least 8 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the clearance warning ECU assembly and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the clearance warning ECU assembly is 10.2 V or higher.	Turn the ignition switch to ON and wait at least 8 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication With Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between the clearance warning ECU assembly and combination meter assembly continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the clearance warning ECU assembly is 10.2 V or higher.	Turn the ignition switch to ON and wait at least 8 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Parking Assist ECU / GTS Display "Parking Assist Monitor System" (w/ Parking Assist Monitor System)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0073	Control Module Communication Bus OFF	Either of the following conditions is met: The parking assist ECU is unable to send or receive data approximately 1 second consecutively. The parking assist ECU is unable to send or receive data 10 times consecutively.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the parking assist ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0100	Lost Communication with ECM	Either of the following conditions is met: Communication stop occurs between the parking assist ECU and ECM continuously for approximately 4 seconds or more. Communication stop occurs between the parking assist ECU and ECM continuously for 10 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the parking assist ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0114	Lost Communication with 4WD Control ECU	Communication stop occurs between the parking assist ECU and 4 wheel drive control ECU (4WD control ECU) continuously for approximately 2 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the parking assist ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least approximately 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0124	Lost Communication with Lateral Acceleration Sensor Module	Communication stop occurs between the parking assist ECU and airbag sensor assembly continuously for approximately 2 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the parking assist ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least approximately 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Either of the following conditions is met: Communication stop occurs between the parking assist ECU and spiral cable with steering angle sensor continuously for approximately 2 seconds or more. Communication stop occurs between the parking assist ECU and spiral cable with steering angle sensor continuously for approximately 10 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the parking assist ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least approximately 13 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Either of the following conditions is met: Communication stop occurs between the parking assist ECU and skid control ECU continuously for approximately 2 seconds or more. Communication stop occurs between the parking assist ECU and skid control ECU continuously for approximately 4 seconds or more. Communication stop occurs between the parking assist ECU and skid control ECU continuously for 10 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the parking assist ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Main Body ECU	Either of the following conditions is met: Communication stop occurs between the parking assist ECU and main body ECU (multiplex network body ECU) continuously for 4 seconds or more. Communication stop occurs between the parking assist ECU and main body ECU (multiplex network body ECU) continuously for 6 seconds or more. Communication stop occurs between the parking assist ECU and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the parking assist ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1110	Lost Communication with Clearance Sonar Module	Communication stop occurs between the parking assist ECU and clearance warning ECU assembly continuously for 10 seconds or more.	All conditions are met: 3 seconds or more elapse after the ignition switch is ON. The power source voltage of the parking assist ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 13 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Tire Pressure Warning ECU and Receiver / GTS Display "Tire Pressure Monitor" (w/ Tire Pressure Warning System)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the tire pressure warning ECU and receiver and the skid control ECU continuously for 60 seconds or more.	Approximately 1 second or more elapse after the ignition switch is ON.	Turn the ignition switch to ON and wait at least approximately 61 seconds.	-	-	DTC remains stored only while malfunction is occurring.

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

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0142	Lost Communication with Body ECU	Either of the following conditions is met: Communication stop occurs between the multiplex tilt and telescopic ECU and main body ECU (multiplex network body ECU) continuously for approximately 4 seconds or more. Communication stop occurs between the multiplex tilt and telescopic ECU and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the multiplex tilt and telescopic ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0208	Lost Communication with D-Seat ECU	Communication stop occurs between the multiplex tilt and telescopic ECU and front power seat switch (power seat control ECU) continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the multiplex tilt and telescopic ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1112	Lost Communication with Combination Switch ECU	Communication stop occurs between the multiplex tilt and telescopic ECU and combination meter assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the multiplex tilt and telescopic ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Rear Television Camera Assembly / GTS Display "IPA/Parking Assist Monitor" (w/ Multi-terrain Monitor System)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the rear television camera assembly and ECM continuously for 11 seconds or more.	3 seconds or more elapse after the ignition switch is ON.	Turn the ignition switch to ON and wait at least 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the rear television camera assembly and spiral cable with steering angle sensor continuously for 11 seconds or more.	3 seconds or more elapse after the ignition switch is ON.	Turn the ignition switch to ON and wait at least 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	Communication stop occurs between the rear television camera assembly and main body ECU (multiplex network body ECU) continuously for 11 seconds or more.	3 seconds or more elapse after the ignition switch is ACC.	Turn the ignition switch to ACC and wait at least 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0163	Lost Communication with Navigation Control Module	Either of the following conditions is met: Communication stop occurs between the rear television camera assembly and navigation receiver assembly (EMVN ECU) continuously for 11 seconds or more. Communication stop occurs between the rear television camera assembly and radio and display receiver assembly (EMVN ECU) continuously for 11 seconds or more.	3 seconds or more elapse after the ignition switch is ACC.	Turn the ignition switch to ACC and wait at least 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1110	Lost Communication with Clearance Sonar Module	Communication stop occurs between the rear television camera assembly and clearance warning ECU assembly continuously for 11 seconds or more.	3 seconds or more elapse after the ignition switch is ON.	Turn the ignition switch to ON and wait at least 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Stabilizer Control ECU / GTS Display "KDSS" (w/ Kinetic Dynamic Suspension System)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the stabilizer control ECU and ECM continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. Vehicle speed is 30 km/h (19 mph) or more. The power source voltage of the stabilizer control ECU is 10 V or higher.	Drive the vehicle for 4 seconds or more at a speed of 30 km/h (19 mph) or higher.	-	-	DTC is stored until it is cleared using the GTS.
U0122	Lost Communication with Vehicle Dynamics Control Module	Communication stop occurs between the stabilizer control ECU and skid control ECU continuously for 3 seconds or more.	All conditions are met: 2 seconds or more elapse after the ignition switch is ON. The power source voltage of the stabilizer control ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	KDSS indicator light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0124	Lost Communication with Lateral Acceleration Sensor Module	Communication stop occurs between the stabilizer control ECU and airbag sensor assembly continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the stabilizer control ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 4 seconds.	KDSS indicator light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the stabilizer control ECU and spiral cable with steering angle sensor continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the stabilizer control ECU is 10 V or higher.	Turn the ignition switch to ON and wait at least 4 seconds.	KDSS indicator light illuminates.	-	DTC is stored until it is cleared using the GTS.

Blind Spot Monitor Sensor LH / GTS Display "Blind Spot Monitor Master" (w/ Blind Spot Monitor System)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM / PCM "A"	Communication stop occurs between the blind spot monitor sensor LH and ECM continuously for approximately 11 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. Vehicle speed is 5 km/h (3 mph) or more. The power source voltage of the blind spot monitor sensor LH is 10 V or higher. Blind spot monitor main switch is ON.	Drive the vehicle for approximately 12 seconds or more at a speed of 5 km/h (3 mph) or higher with the blind spot monitor main switch ON.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Either of the following conditions is met: Communication stop occurs between the blind spot monitor sensor LH and spiral cable with steering angle sensor continuously for approximately 1 second or more. Communication stop occurs between the blind spot monitor sensor LH and spiral cable with steering angle sensor continuously for approximately 11 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the blind spot monitor sensor LH is 10 V or higher. Blind spot monitor main switch is ON.	Turn the ignition switch to ON and wait at least approximately 12 seconds with the blind spot monitor main switch ON.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the blind spot monitor sensor LH and skid control ECU continuously for approximately 3 seconds or more.	All conditions are met: 2 seconds or more elapse after the ignition switch is ON. The power source voltage of the blind spot monitor sensor LH is 10 V or higher. Blind spot monitor main switch is ON.	Turn the ignition switch to ON and wait at least approximately 5 seconds with the blind spot monitor main switch ON.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the blind spot monitor sensor LH and main body ECU (multiplex network body ECU) continuously for approximately 11 seconds or more.	All conditions are met: 1 second or more elapse after the ignition switch is ON. The power source voltage of the blind spot monitor sensor LH is 10 V or higher. Blind spot monitor main switch is ON.	Turn the ignition switch to ON and wait at least approximately 12 seconds with the blind spot monitor main switch ON.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Outer Mirror Control ECU Assembly LH / GTS Display "D-Door Motor" (for LHD with Reverse Shift-linked Mirror), "Mirror L" (w/ Reverse Shift-linked Mirror)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed	DTC Storage Method
U0142	Lost Communication With Body Control Module "B"	Communication stop occurs between the outer mirror control ECU assembly LH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: 1 second or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the outer mirror control ECU assembly LH is 10 V or higher.	Turn the ignition switch to ON and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.

DTC

Detection Item

DTC Detection Condition

DTC Detection Pre-condition

DTC Check Procedure

Warning Displayed

DTC Storage Method

Indication in Meter

Multi-information Display

U0142

Lost Communication With Body Control Module "B"

Communication stop occurs between the outer mirror control ECU assembly LH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

All conditions are met:

1 second or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).
The power source voltage of the outer mirror control ECU assembly LH is 10 V or higher.

Turn the ignition switch to ON and wait at least 10 seconds.

DTC is stored until it is cleared using the GTS.

Outer Mirror Control ECU Assembly RH / GTS Display "D-Door Motor" (for RHD with Reverse Shift-linked Mirror), "Mirror R" (w/ Reverse Shift-linked Mirror)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed	DTC Storage Method
U0142	Lost Communication With Body Control Module "B"	Communication stop occurs between the outer mirror control ECU assembly RH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: 1 second or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the outer mirror control ECU assembly RH is 10 V or higher.	Turn the ignition switch to ON and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.

DTC

Detection Item

DTC Detection Condition

DTC Detection Pre-condition

DTC Check Procedure

Warning Displayed

DTC Storage Method

Indication in Meter

Multi-information Display

U0142

Lost Communication With Body Control Module "B"

Communication stop occurs between the outer mirror control ECU assembly RH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

All conditions are met:

1 second or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).
The power source voltage of the outer mirror control ECU assembly RH is 10 V or higher.

Turn the ignition switch to ON and wait at least 10 seconds.

DTC is stored until it is cleared using the GTS.

Central Gateway ECU (Network Gateway ECU) / GTS Display "Central Gateway"

Tech Tips

The central gateway ECU (network gateway ECU) is connected to the CAN communication system but CAN communication DTCs are not stored.
Front Power Seat Switch (Power Seat Control ECU) / GTS Display "Driver Seat" (w/ Seat Memory)

Tech Tips

The front power seat switch (power seat control ECU) is connected to the CAN communication system but CAN communication DTCs are not stored.
Spiral Cable with Steering Angle Sensor / GTS Display "-"

Tech Tips

The spiral cable with steering angle sensor is connected to the CAN communication system but CAN communication DTCs are not stored.
Millimeter Wave Radar Sensor Assembly / GTS Display "-" (w/ Pre-crash Safety System)

Tech Tips

The millimeter wave radar sensor assembly is connected to the CAN communication system but CAN communication DTCs are not stored.
Airbag Sensor Assembly / GTS Display "SRS Airbag"

Tech Tips

The airbag sensor assembly is connected to the CAN communication system but CAN communication DTCs are not stored.
Bus Buffer ECU / GTS Display "-" (w/ Bus Buffer ECU)

Tech Tips

The bus buffer ECU is connected to the CAN communication system, but the bus buffer ECU does not store or output CAN communication DTCs.

CAN BUS WAVEFORMS

Tech Tips

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

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

CAN bus waveforms (Group 1)


*a	1 V/DIV.
*b	50 μs/DIV.

Normal waveform


*a	1 V/DIV.
*b	50 μs/DIV.

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

Tech Tips

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


*a	1 V/DIV.
*b	50 μs/DIV.

Short between the CAN bus lines (CANH and CANL)

Tech Tips

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

CAN bus waveforms (reference) (Group 2)

Note

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


*a	1 V/DIV.
*b	50 μs/DIV.

Open in a CAN branch line (CANH)

Tech Tips

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


*a	1 V/DIV.
*b	50 μs/DIV.

Open in a CAN branch line (CANL)

Tech Tips

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


*a	1 V/DIV.
*b	50 μs/DIV.

Open in a CAN main bus line (CANH)

Tech Tips

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


*a	1 V/DIV.
*b	50 μs/DIV.

Short between a CAN bus line (CANH) and ground

Tech Tips

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


*a	1 V/DIV.
*b	50 μs/DIV.

Short between a CAN bus line (CANL) and ground

Tech Tips

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

DATA SENDING/RECEIVING TABLE

Data sending/receiving table

Tech Tips

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

Data Content	Data Detected and Sent by	Relevant Data List Item		Relevant Data List Item
Data Content	Data Detected and Sent by	Can be Checked in Data List	Cannot be Checked in Data List	Selected System*3	Data List Items
Engine speed signal	ECM	Brake actuator assembly (skid control ECU) Master cylinder solenoid (skid control ECU) Certification ECU (smart key ECU assembly) Combination meter assembly Suspension control ECU Power steering ECU assembly	Navigation receiver assembly (EMVN ECU) Radio and display receiver assembly (EMVN ECU) Bus buffer ECU Airbag sensor assembly Air conditioning amplifier assembly Main body ECU (multiplex network body ECU) 4 wheel drive control ECU (4WD control ECU)	Engine	Engine Speed
				ABS/VSC/TRC	Engine Revolutions
				Starting Control	Engine Speed
				Combination Meter	Engine Rpm
				Air Suspension	Engine Speed
				PPS	Engine Revolution
Engine coolant temperature signal	ECM	Air conditioning amplifier assembly Combination meter assembly	Navigation receiver assembly (EMVN ECU) Radio and display receiver assembly (EMVN ECU)	Engine	Coolant Temp
				Air Conditioner	Engine Coolant Temp
				Combination Meter	Coolant Temperature
Shift position signal	ECM	Certification ECU (smart key ECU assembly) (Start control/P only) 4 wheel drive control ECU (4WD control ECU)(P or N only) Clearance warning ECU assembly Navigation receiver assembly (EMVN ECU) Radio and display receiver assembly (EMVN ECU) Blind spot monitor sensor LH (R only) Combination meter assembly*1 Power seat switch assembly (P only)	Airbag sensor assembly No. 1 headlight ECU sub-assembly LH Main body ECU (multiplex network body ECU) Driving support ECU assembly (R or D only) Forward recognition camera (R only) Parking assist ECU Bus buffer ECU (P only)	Engine	N Range Status
				Power Source Control	Shift P Signal
				Navigation System	Reverse Signal
				Four Wheel Drive	Shift SW Status (P Range)
				Clearance Sonar	Parking Signal Reverse Signal
				Combination Meter	Reverse Range Switch (6MT)*4
				Driver Seat	P Switch
				Blind Spot Monitor Master	Reverse
Stop light switch signal	Brake actuator assembly (skid control ECU) Master cylinder solenoid (skid control ECU)	4 wheel drive control ECU (4WD control ECU)	Bus buffer ECU Airbag sensor assembly Stabilizer control ECU Suspension control ECU Driving support ECU assembly	ABS/VSC/TRC	Stop Light SW
Stop light switch signal		4 wheel drive control ECU (4WD control ECU)		Four Wheel Drive	Stop Light SW
Wheel speed signal	Brake actuator assembly (skid control ECU) Master cylinder solenoid (skid control ECU)	Suspension control ECU 4 wheel drive control ECU (4WD control ECU) No. 1 headlight ECU sub-assembly LH Stabilizer control ECU	Airbag sensor assembly ECM Blind spot monitor sensor LH Driving support ECU assembly Forward recognition camera Parking assist ECU	ABS/VSC/TRC	FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed
				Air Suspension	FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed
				Four Wheel Drive	FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed
				KDSS	FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed
				AFS	FR Wheel Speed FL Wheel Speed
Vehicle speed signal	Brake actuator assembly (skid control ECU) Master cylinder solenoid (skid control ECU)	Navigation receiver assembly (EMVN ECU) Radio and display receiver assembly (EMVN ECU) ECM 4 wheel drive control ECU (4WD control ECU) Combination meter assembly*2 Blind spot monitor sensor LH Driving support ECU assembly	Airbag sensor assembly Forward recognition camera Parking assist ECU Telematics transceiver Main body ECU (multiplex network body ECU) Power steering ECU assembly	ABS/VSC/TRC	Vehicle Speed
				Engine	Vehicle Speed
				Navigation System	Vehicle Speed
				Four Wheel Drive	Vehicle Speed
				Blind Spot Monitor Master	Vehicle Speed
				Combination Meter	Vehicle Speed Meter
	Combination meter assembly*2	Multiplex tilt and telescopic ECU Power seat switch assembly	Clearance warning ECU assembly Bus buffer ECU Airbag sensor assembly Air conditioning amplifier assembly Main body ECU (multiplex network body ECU) Certification ECU (smart key ECU assembly) Tire pressure warning ECU and receiver	Combination Meter	Vehicle Speed Meter
	Combination meter assembly*2			Tilt&Telescopic	Freeze Speed Info
Ambient temperature signal	Air conditioning amplifier assembly	ECM Combination meter assembly	Bus buffer ECU Clearance warning ECU assembly Driving support ECU assembly Forward recognition camera Main body ECU (multiplex network body ECU) 4 wheel drive control ECU (4WD control ECU)	Air Conditioner	Ambient Temp Sensor
				Engine	Ambient Temp for A/C
				Combination Meter	Ambient Temperature
Steering angle sensor signal	Spiral cable with steering angle sensor	Master cylinder solenoid (skid control ECU) (Except 2TR) Blind spot monitor sensor LH Driving support ECU assembly Suspension control ECU Power steering ECU assembly Stabilizer control ECU	Navigation receiver assembly (EMVN ECU) Radio and display receiver assembly (EMVN ECU) Airbag sensor assembly ECM Forward recognition camera No. 1 headlight ECU sub-assembly LH Parking assist ECU Rear television camera assembly Combination meter assembly	ABS/VSC/TRC	Steering Angle Sensor Steering Angle Value
				Blind Spot Monitor Master	Steering Angle
				Radar Cruise2	Steering Angle
				Air Suspension	Steering Angle
				KDSS	Steering Angle
				PPS	Steering Angle
Door courtesy signal	Main body ECU (multiplex network body ECU)	-	Navigation receiver assembly (EMVN ECU) Radio and display receiver assembly (EMVN ECU) Bus buffer ECU Certification ECU (smart key ECU assembly) Combination meter assembly*1 Master cylinder solenoid (skid control ECU) Brake actuator assembly (skid control ECU) Forward recognition camera(D only) Suspension control ECU Parking assist ECU Rear television camera assembly(B only)	Main Body	D Door Courtesy SW P-Door Courtesy SW RL Door Courtesy SW RR Door Courtesy SW

*1: Although the received contents cannot be checked in the Data List, whether or not the data is received normally can be checked by observing the combination meter assembly.
*2: The combination meter assembly receives a vehicle speed signal from the skid control ECU and sends the signal to other ECUs.
*3: According to the display on the GTS, read the Data List.

Enter the following menus: Powertrain / Engine / Data List.

1GR-FE: Click here

1KD-FTV: Click here

1GD-FTV: Click here

1TR-FE: Click here
Enter the following menus: Chassis / ABS/VSC/TRC / Data List.

except 2TR-FE: Click here

for 2TR-FE: Click here
Enter the following menus: Body Electrical / Combination Meter / Data List.

Click here
Enter the following menus: Body Electrical / Power Source Control / Data List.

Click here
Enter the following menus: Body Electrical / Air Conditioner / Data List.

for Automatic Air Conditioning System: Click here

for Manual Air Conditioning System: Click here
Enter the following menus: Powertrain / Radar Cruise2 / Data List.

Click here
Enter the following menus: Body Electrical / Main Body / Data List.

for Halogen Headlight: Click here

for LED Headlight: Click here
Enter the following menus: Body Electrical / Tilt & Telescopic / Data List.

Click here

Click here
Enter the following menus: Chassis / PPS / Data List.

Click here
Enter the following menus: Body Electrical / Pre-Collision 2 / Data List.

Click here
Enter the following menus: Body Electrical / Blind Spot Monitor Master / Data List.

Click here
Enter the following menus: Body Electrical / Starting Control / Data List.

Click here
Enter the following menus: Body Electrical / Clearance Sonar / Data List.

Click here
Enter the following menus: Body Electrical / Navigation System / Data List.

for Radio and Display Type: Click here

for Navigation Receiver Type: Click here
Enter the following menus: Powertrain / Four Wheel Drive / Data List.

Click here

*4: for Manual Transmission (RA61F)