CAN COMMUNICATION SYSTEM(for LHD with Central Gateway ECU) DIAGNOSIS SYSTEM

ECUS OR SENSORS WHICH COMMUNICATE THROUGH CAN COMMUNICATION SYSTEM
1. V Bus
  1. Central gateway ECU
  2. DLC3
2. Bus 2
  1. ECM
  2. Combination meter assembly
  3. Main body ECU (multiplex network body ECU)
  4. Spiral with sensor cable sub-assembly (steering angle sensor)
  5. Airbag sensor assembly
  6. Headlight leveling ECU assembly
  7. Central gateway ECU
  8. Master cylinder solenoid (skid control ECU)
  9. Steering control ECU*1
  10. Power steering ECU assembly*2
  11. 4WD control ECU
  12. Tire pressure warning ECU*3
  13. Air conditioning amplifier assembly
  14. Certification ECU (smart key ECU assembly)*4
    - *1: w/ Variable Gear Ratio Steering System
    - *2: w/ Variable Flow Control Solenoid Valve
    - *3: w/ Tire Pressure Warning System
    - *4: w/ Entry and Start System
3. Bus 3
  1. Central gateway ECU
  2. Multi-media module receiver assembly*1
  3. Radio and display receiver assembly*2
  4. Bus buffer ECU*3
  5. Telematics transceiver*4
    - *1: for Multi-media Module Receiver Type
    - *2: for Radio and Display Type
    - *3: w/ Bus Buffer ECU
    - *4: w/ Telematics Transceiver
4. Bus 5
  1. Central gateway ECU
  2. Clearance warning ECU assembly*1
  3. Parking assist ECU*2
  4. Driving support ECU assembly*3
  5. Forward recognition camera*3
  6. Millimeter wave radar sensor assembly*3
  7. Inner rear view mirror assembly*4, *5
  8. Suspension Control ECU*6
  9. Blind spot monitor sensor LH*7
    - *1: w/ TOYOTA Parking Assist-sensor System
    - *2: w/ Multi-terrain Monitor System
    - *3: w/ Pre-crash Safety System
    - *4: w/o Pre-crash Safety System
    - *5: w/ Automatic High Beam System
    - *6: w/ Active Height Control Suspension
    - *7: w/ Blind Spot Monitor System
5. Sub Bus 1
  1. Main body ECU (multiplex network body ECU)
  2. Outer mirror control ECU assembly LH*1
  3. Outer mirror control ECU assembly RH*1
  4. Power seat switch assembly*1
  5. Multiplex tilt and telescopic ECU*2
  6. Power back door unit assembly (power back door ECU)*3
  7. No. 2 main body ECU*4
    - *1: w/ Memory
    - *2: w/ Power Tilt and Power Telescopic Steering Column System
    - *3: w/ Power Back Door System
    - *4: w/ Tail Gate Closer System
6. Local Bus*
  1. Driving support ECU assembly
  2. Forward recognition camera
  3. Millimeter wave radar sensor assembly
    - *: w/ Pre-crash Safety System

CAN BUS CHECK

Tech Tips

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

Using the GTS, select the CAN Bus Check screen.

Note

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

Click here

Tech Tips

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

Explanation of CAN Bus Check Screen
Bus Type	Background Color	Connection Status
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 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, 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 and V bus (the bus that connects the DLC3 to the central 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.

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

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

Tech Tips

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

ECU/Sensor Name	GTS Display	Applicability
ECM	ECM (Engine)	All vehicles
Central gateway ECU	CAN Gateway	All vehicles
Combination meter assembly	Combination Meter	All vehicles
Main body ECU (multiplex network body ECU)	Main Body	All vehicles
Master cylinder solenoid (skid control ECU)	Skid Control (ABS/VSC/TRAC)	All vehicles
Spiral with sensor cable sub-assembly (steering angle sensor)	Spiral cable (Steering Angle Sensor)	All vehicles
Airbag sensor assembly	Airbag	All vehicles
Certification ECU (smart key ECU assembly)	Certification (Smart)	Vehicle with an entry and start system
Air conditioning amplifier assembly	Air Conditioning Amplifier	All vehicles
Multi-media module receiver assembly	Display and Navigation (AVN1)	Vehicle with a multi-media module receiver assembly type
Radio and display receiver assembly	Display and Navigation (AVN1)	Vehicle with a radio and display type
Clearance warning ECU assembly	Clearance Warning (Clearance Sonar)	Vehicle with a TOYOTA parking assist-sensor system
Outer mirror control ECU assembly RH	Front Door RH/R-Mirror (FR-Door2/R-Mirror)	Vehicle with a memory
Outer mirror control ECU assembly LH	Front Door LH/L-Mirror (FL-Door2/L-Mirror)	Vehicle with a memory
Power switch assembly	D-Seat	Vehicle with a memory
Multiplex tilt and telescopic ECU	Multiplex Tilt and Telescopic	Vehicle with a power tilt and power telescopic steering column system
Driving support ECU assembly	Driving Support (Cruise Control-ACC)	Vehicles with a pre-crash safety system
Blind spot monitor sensor LH	Blind Spot Monitor Master	Vehicles with a blind spot monitor system
Forward recognition camera	Front Camera Module	Vehicles with a pre-crash safety system
Inner rear view mirror assembly	Front Camera Module	Vehicles without a pre-crash safety system and with an automatic high beam system
Millimeter wave radar sensor assembly	Front Radar	Vehicles with a pre-crash safety system
Headlight leveling ECU assembly	Headlight swivel (AFS)	All vehicles
Tire pressure warning ECU	Tire Pressure	Vehicles with a tire pressure warning system
4WD control ECU	4WD	All vehicles
Steering control ECU	Steering Control (VGRS)	Vehicles with a variable gear ratio steering system
Parking assist ECU	Panoramic View Monitor	Vehicles with a multi-terrain monitor system
Power steering ECU assembly	PPS	Vehicles with a variable flow control solenoid valve
Suspension control ECU	Suspension Control (Air Suspension)	Vehicles with an active height control suspension
Power back door unit assembly (power back door ECU)	Back Door	Vehicles with a power back door system
No. 2 main body ECU	Rear Junction Block (Body No.4)	Vehicles with a tail gate closer system
Telematics transceiver	DCM	Vehicles with a telematics transceiver

HOW TO INTERPRET CAN BUS CHECK SCREEN

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

Note

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

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

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 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) 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.

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

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

Tech Tips

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

Text in Illustration
*a	Items to be checked	-	-

Text in Illustration
*a	Items to be checked	-	-

To help determine the part of the non-bus 2 that has a communication error, prioritize the communication stop DTCs stored in the gateway function equipped ECU.

Text in Illustration
*a	Items to be checked	*b	ECM
*c	Gateway function equipped ECU	*d	Location of malfunction
*e	Bus	*f	Sub Bus

Note

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

Tech Tips

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

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

DTC TABLE BY ECU

Tech Tips

In the CAN communication system, the CAN communication DTCs of each ECU can be displayed using the GTS.
If CAN communication system DTCs are output, trouble cannot be determined only by the DTCs. Perform troubleshooting according to How to Proceed with Troubleshooting Click here.
If system function temporarily returns to normal, DTCs may not be output again even though the following DTC check procedures are used.

ECM

Tech Tips

This ECU uses the CAN communication system for DTC communication.

GTS Display "Cruise Control"

DTC	Detection Item	DTC Detection Condition	DTC Detection Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0122	Lost Communication with Vehicle Dynamics Control Module	The ECM does not receive data from the master cylinder solenoid (skid control ECU) for 2.58 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 3.58 seconds or more.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.

DTC

Detection Item

DTC Detection Condition

DTC Detection Precondition

DTC Check Procedure

Warning Indication in Meter

DTC Storage Method

U0122

Lost Communication with Vehicle Dynamics Control Module

The ECM does not receive data from the master cylinder solenoid (skid control ECU) for 2.58 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 3.58 seconds or more.

Displays messages on the multi-information display.

The DTC remains stored until it is cleared using the GTS.

GTS Display "Radar Cruise1"

DTC	Detection Item	DTC Detection Condition	DTC Detection Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM / PCM "A"	The ECM is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 1 second or more.	Both 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.	The DTC remains 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 master cylinder solenoid (skid control ECU) for 2.6 seconds or more.	Both 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 2.6 seconds or more	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.
U1104	Lost Communication with Distance Control Module	The driving support ECU assembly data sent to the ECM, master cylinder solenoid (skid control ECU) or millimeter wave radar sensor assembly is lost for 1 second or more.	Both 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.	The DTC remains stored until it is cleared using the GTS.

DTC

Detection Item

DTC Detection Condition

DTC Detection Precondition

DTC Check Procedure

Warning Indication in Meter

DTC Storage Method

U0100

Lost Communication with ECM / PCM "A"

The ECM is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 1 second or more.

Both 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.

The DTC remains 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 master cylinder solenoid (skid control ECU) for 2.6 seconds or more.

Both 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 2.6 seconds or more

Displays messages on the multi-information display.

The DTC remains stored until it is cleared using the GTS.

U1104

Lost Communication with Distance Control Module

The driving support ECU assembly data sent to the ECM, master cylinder solenoid (skid control ECU) or millimeter wave radar sensor assembly is lost for 1 second or more.

Both 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.

The DTC remains stored until it is cleared using the GTS.

Master Cylinder Solenoid (Skid Control ECU) / GTS Display "ABS/VSC/TRC"

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 Indication in Meter	DTC Storage Method
U0073	Control Module Communication Bus OFF	Either condition is met: The response sent to the master cylinder solenoid (skid control ECU) from the spiral with sensor cable sub-assembly (steering angle sensor) is invalid for 1 second or more. The response sent to the master cylinder solenoid (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 master cylinder solenoid (skid control ECU) from the airbag sensor assembly is invalid at least once within 5 seconds. The response sent to the master cylinder solenoid (skid control ECU) from the spiral with sensor cable sub-assembly (steering angle sensor) is invalid at least once within 5 seconds. The master cylinder solenoid (skid control ECU) cannot send or receive data (the bus is off) 10 times consecutively.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The master cylinder solenoid (skid control ECU) power supply voltage is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least 60 seconds.	ABS indicator light illuminates. Brake indicator light illuminates. SLIP indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0100	Lost Communication with ECM/PCM "A"	The master cylinder solenoid (skid control ECU) is unable to receive certain data from the ECM for 2 seconds or more.	All conditions are met: 1 second or more elapses after turning the ignition switch to ON. The vehicle speed is 15 km/h (9 mph) or more. The master cylinder solenoid (skid control ECU) power supply voltage is between 10 and 17.4 V.	Drive the vehicle for 2 seconds at a speed of 15 km/h (9 mph) or more.	SLIP indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0114	Lost Communication With Four-Wheel Drive Clutch Control Module	The master cylinder solenoid (skid control ECU) is unable to receive certain data from the 4WD control ECU for 1 second or more.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The master cylinder solenoid (skid control ECU) power supply voltage is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least 2 seconds.	SLIP indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0123	Lost Communication with Yaw Rate Sensor Module	Either condition is met: The master cylinder solenoid (skid control ECU) is unable to receive certain data from the airbag sensor assembly for 1 second or more. The following condition occurs 10 times or more consecutively within 60 seconds: The master cylinder solenoid (skid control ECU) is unable to receive certain data from the airbag sensor assembly at least once within 5 seconds.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The master cylinder solenoid (skid control ECU) power supply voltage is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least 60 seconds.	ABS indicator light illuminates. SLIP indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0124	Lost Communication with Lateral Acceleration Sensor Module	Either condition is met: The master cylinder solenoid (skid control ECU) is unable to receive certain data from the airbag sensor assembly for 1 second or more. The following condition occurs 10 times or more consecutively within 60 seconds: The master cylinder solenoid (skid control ECU) is unable to receive certain data from the airbag sensor assembly at least once within 5 seconds.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The master cylinder solenoid (skid control ECU) power supply voltage is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least 60 seconds.	ABS indicator light illuminates. SLIP indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Either condition is met: The master cylinder solenoid (skid control ECU) is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 1 second or more. The following condition occurs 10 times or more consecutively within 60 seconds: The master cylinder solenoid (skid control ECU) is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) at least once within 5 seconds.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The master cylinder solenoid (skid control ECU) power supply voltage is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least 60 seconds.	SLIP indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0130	Lost Communication with Steering Effort Control Module	The master cylinder solenoid (skid control ECU) is unable to receive certain data from the steering control ECU for 1 second or more.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The master cylinder solenoid (skid control ECU) power supply voltage is between 10 and 17.4 V.	Turn the ignition switch to ON and wait at least 60 seconds.	SLIP indicator light illuminates.	The DTC remains 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 Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Either condition is met: The combination meter assembly is unable to receive certain data from the ECM for 2 seconds or more. The combination meter assembly is unable to receive certain data from the ECM for 3 seconds or more.	Both conditions are met: The ignition switch to ON. The voltage at the IG power supply terminal of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 3 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Either condition is met: The combination meter assembly is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 2 seconds or more. The combination meter assembly is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 3 seconds or more.	Both conditions are met: The ignition switch to ON. The voltage at the IG power supply terminal of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 3 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0130	Lost Communication with VGRS	The combination meter assembly is unable to receive certain data from the steering control ECU for 3 seconds or more.	Both conditions are met: The ignition switch to ON. The voltage at the IG power supply terminal of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 3 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	Either condition is met: The combination meter assembly is unable to receive certain data from the main body ECU (multiplex network body ECU) for 3 seconds or more. The combination meter assembly is unable to receive certain data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: The ignition switch to ON. The voltage at the IG power supply terminal of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 10 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0151	Lost Communication with Restraints Control Module	The combination meter assembly is unable to receive certain data from the center airbag sensor assembly for 10 seconds or more.	Both conditions are met: The ignition switch to ON. The voltage at the IG power supply terminal of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 10 seconds.	SRS warning light illuminated.	The DTC remains stored until it is cleared using the GTS.
U0163	Lost Communication With Navigation Control Module	The combination meter assembly is unable to receive certain data from the multi-media module receiver assembly1 or radio and display receiver assembly2 for 3 seconds or more.	Both conditions are met: The ignition switch to ON. The voltage at the IG power supply terminal of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 3 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0182	Lost Communication with Lighting Control Module Front	The combination meter assembly is unable to receive certain data from the headlight leveling ECU assembly for 10 seconds or more.	Both conditions are met: The ignition switch to ON. The voltage at the IG power supply terminal of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 10 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U023A	Lost Communication with Front Camera Module	The combination meter assembly is unable to receive certain data from the forward recognition camera for 10 seconds or more.	Both conditions are met: The ignition switch to ON. The voltage at the IG power supply terminal of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 10 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U1104	Lost Communication with Driving Support ECU	The combination meter assembly is unable to receive certain data from the driving support ECU assembly for 10 seconds or more.	Both conditions are met: The ignition switch to ON. The voltage at the IG power supply terminal of the combination meter assembly is between 9.5 and 11.5 V.	Turn the ignition switch to ON and wait at least 10 seconds.	PCS warning light illuminated.	The DTC remains stored until it is cleared using the GTS.

*1: for Multi-media Module Receiver Type
*2: for Radio and Display Type

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 Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication With ECM/PCM "A"	The air conditioning amplifier assembly is unable to receive certain data from the ECM for 5 seconds or more.	Both conditions are met: The ignition switch to ON. The air conditioning amplifier assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0131	Lost Communication With Power Steering Control Module	The air conditioning amplifier assembly is unable to receive certain data from the power steering ECU assembly for 5 seconds or more.	Both conditions are met: The ignition switch to ON. The air conditioning amplifier assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0142	Lost Communication With Body Control Module "B"	The air conditioning amplifier assembly is unable to receive certain data from the main body ECU (multiplex network body ECU) for 5 seconds or more.	Both conditions are met: The ignition switch to ON. The air conditioning amplifier assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0151	Lost Communication With Restraints Control Module	The air conditioning amplifier assembly is unable to receive certain data from the airbag sensor assembly for 5 seconds or more.	Both conditions are met: The ignition switch to ON. The air conditioning amplifier assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0155	Lost Communication With Instrument Panel Cluster (IPC) Control Module	The air conditioning amplifier assembly is unable to receive certain data from the combination meter assembly for 5 seconds or more.	Both conditions are met: The ignition switch to ON. The air conditioning amplifier assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0163	Lost Communication With Navigation Control Module	The air conditioning amplifier assembly is unable to receive certain data from the multi-media module receiver assembly1 or radio and display receiver assembly2 assembly for 5 seconds or more.	Both conditions are met: The ignition switch to ON. The air conditioning amplifier assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	The DTC remains stored until it is cleared using the GTS.

*1: for Multi-media Module Receiver Type
*2: for Radio and Display Type

Power Steering ECU Assembly / GTS Display "PPS" (w/ Variable Flow Control Solenoid Valve)

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 Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The power steering ECU assembly is unable to receive certain data from the ECM for 0.996 seconds or more.	Both conditions are met: 1 second elapses after turning the ignition switch to ON. The power steering ECU assembly power supply voltage is 10.5 V or higher.	Turn the ignition switch to ON and wait at least 2 seconds.	PPS warning light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	The power steering ECU assembly is unable to receive certain data from the spiral with sensor cable sub-assembly for 0.096 seconds or more.	Both conditions are met: 1 second elapses after turning the ignition switch to ON. The power steering ECU assembly power supply voltage is 10.5 V or higher.	Turn the ignition switch to ON and wait at least 1.1 seconds.	PPS warning light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	The power steering ECU assembly is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 0.996 seconds or more.	Both conditions are met: 1 second elapses after turning the ignition switch to ON. The power steering ECU assembly power supply voltage is 10.5 V or higher.	Turn the ignition switch to ON and wait at least 2 seconds.	PPS warning light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0130	Lost Communication with Steering Effort Control Module	The power steering ECU assembly is unable to receive certain data from the steering control ECU for 0.996 seconds or more.	Both conditions are met: 1 second elapses after turning the ignition switch to ON. The power steering ECU assembly power supply voltage is 10.5 V or higher.	Turn the ignition switch to ON and wait at least 2 seconds.	PPS warning light illuminates.	The DTC remains stored until it is cleared using the GTS.

Headlight Swivel ECU Assembly / GTS Display "HL Auto Leveling"

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 Indication in Meter	DTC Storage Method
U0073	Control Module Communication Bus Off	The headlight leveling ECU assembly is unable to send or receive data 10 times consecutively.	Both conditions are met: 3 seconds elapse after turning the ignition switch to ON. The headlight leveling ECU assembly 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"	The headlight leveling ECU assembly is unable to receive certain data from the ECM for 10 seconds or more.	Both conditions are met: 3 seconds elapse after turning the ignition switch to ON. The headlight leveling ECU assembly 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 condition is met: The headlight leveling ECU assembly is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 5 seconds or more. The headlight leveling ECU assembly is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 10 seconds or more.	Both conditions are met: 3 seconds elapse after turning the ignition switch to ON. The headlight leveling ECU assembly 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	The headlight leveling ECU assembly is unable to receive certain data from the suspension control ECU for 5 seconds or more.	Both conditions are met: 3 seconds elapse after turning the ignition switch to ON. The headlight leveling ECU assembly 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"	The headlight leveling ECU assembly is unable to receive certain data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: 3 seconds elapse after turning the ignition switch to ON. The headlight leveling ECU assembly 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 transmission malfunction (message register)	Both conditions are met: 3 seconds elapse after turning the ignition switch to ON. The headlight leveling ECU assembly power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 3 seconds.	-	The DTC remains stored until it is cleared using the GTS.

*: Refer to the Lighting System Click here.

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

Tech Tips

This ECU uses the CAN communication system for DTC communication.
"Gateway" stores DTCs when a communication error is detected in the sub bus 1.

DTC	Detection Item	DTC Detection Condition	DTC Detection Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The main body ECU (multiplex network body ECU) is unable to receive certain data from the ECM for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0101	Lost Communication with TCM	The main body ECU (multiplex network body ECU) is unable to receive certain data from the ECM for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0120	Lost Communication with Starter / Generator Control Module	The main body ECU (multiplex network body ECU) is unable to receive certain data from the certification ECU (smart key ECU assembly) for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0132	Lost Communication with Suspension Control Module "A"	The main body ECU (multiplex network body ECU) is unable to receive certain data from the suspension control ECU for 10 seconds or more.	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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0141	Lost Communication with Body Control Module "A"	The main body ECU (multiplex network body ECU) is unable to receive certain data from the No. 2 main body ECU for 10 seconds or more.	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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0151	Lost Communication with Restraints Control Module	The main body ECU (multiplex network body ECU) is unable to receive certain data from the airbag sensor assembly for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	The main body ECU (multiplex network body ECU) is unable to receive certain data from the combination meter assembly for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	TPMS indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0182	Lost Communication with AFS	Either condition is met: The main body ECU (multiplex network body ECU) is unable to receive certain data from the headlight leveling ECU assembly for 5 seconds or more. The main body ECU (multiplex network body ECU) is unable to receive certain data from the headlight leveling ECU assembly for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0199	Lost Communication with "Door Control Module A"	The main body ECU (multiplex network body ECU) is unable to receive certain data from the front outer mirror control ECU assembly LH for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0200	Lost Communication with "Door Control Module B"	The main body ECU (multiplex network body ECU) is unable to receive certain data from the front outer mirror control ECU assembly RH for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0208	Lost Communication with "Seat Control Module A"	The main body ECU (multiplex network body ECU) is unable to receive certain data from the power seat switch assembly for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0230	Lost Communication with Rear Gate Module	The main body ECU (multiplex network body ECU) is unable to receive certain data from the power back door unit assembly (power back door ECU) for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U023A	Lost Communication With Image Processing Module "A"	The main body ECU (multiplex network body ECU) is unable to receive certain data from the forward recognition camera1 or inner rear view mirror assembly2 for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0327	Software Incompatibility with Vehicle Security Control Module	The main body ECU (multiplex network body ECU) is unable to receive certain data from the certification ECU (smart key ECU) for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U1002	Lost Communication with Gateway Module (Main Body)	The main body ECU (multiplex network body ECU) detects a problem when communicating with the outer mirror control ECU assembly LH, outer mirror control ECU assembly RH, power seat switch assembly, power back door unit assembly (power back door ECU), No. 2 main body ECU, and the multiplex tilt and telescopic ECU.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U1115	Lost Communication with Tilt & Telescopic Module	The main body ECU (multiplex network body ECU) is unable to receive certain data from the multiplex tilt and telescopic ECU for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U1117	Lost Communication with Accessory Gateway	The main body ECU (multiplex network body ECU) is unable to receive certain data from the bus buffer ECU for 10 seconds or more.	Both 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 main body ECU (multiplex network body ECU) power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.

*1: w/ Pre-crash Safety System
*2: w/o Pre-crash Safety System

Certification ECU (Smart Key ECU Assembly)

Tech Tips

This ECU uses the CAN communication system for DTC communication.

GTS Display "Entry&Start"

DTC	Detection Item	DTC Detection Condition	DTC Detection Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The certification ECU (smart key ECU assembly) is unable to receive certain data from the ECM for 10 seconds or more.	Both conditions are met: 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, on ACC changes between on and off, or IG changes between on and off). The certification ECU (smart key ECU assembly) power supply voltage is 10 V or higher.	Wait 20 seconds after turning the ignition switch to ACC or to ON.	-	The DTC remains stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	The certification ECU (smart key ECU assembly) is unable to receive certain data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both 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 certification ECU (smart key ECU assembly) power supply voltage is 10 V or higher.	Wait 20 seconds after turning the ignition switch to ACC or to ON.	-	The DTC remains stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	The certification ECU (smart key ECU assembly) is unable to receive certain data from the combination meter assembly for 10 seconds or more.	Both 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 certification ECU (smart key ECU assembly) power supply voltage is 10 V or higher.	Wait 20 seconds after turning the ignition switch to ACC or to ON.	-	The DTC remains stored until it is cleared using the GTS.
U1117	Lost Communication with Accessory Gateway	The certification ECU (smart key ECU assembly) is unable to receive certain data from the bus buffer ECU for 10 seconds or more.	Both 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 certification ECU (smart key ECU assembly) power supply voltage is 10 V or higher.	Wait 20 seconds after turning the ignition switch to ACC or to ON.	-	The DTC remains stored until it is cleared using the GTS.

Power Source Control

DTC	Detection Item	DTC Detection Condition	DTC Detection Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	ECM Communication	The certification ECU (smart key ECU assembly) is unable to receive certain data from the ECM for 3.1 seconds or more.	Both conditions are met: Turning the ignition switch to ON. The certification ECU (smart key ECU assembly) power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 3.1 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	The certification ECU (smart key ECU assembly) is unable to receive certain data from the main body ECU (multiplex network body ECU) for 3 seconds or more.	Both conditions are met: Turning the ignition switch to ON. The certification ECU (smart key ECU assembly) power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 3 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	The certification ECU (smart key ECU assembly) is unable to receive certain data from the combination meter assembly for 3.1 seconds or more.	Both conditions are met: Turning the ignition switch to ON. The certification ECU (smart key ECU assembly) power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 3.1 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U1117	Lost Communication with Accessory Gateway	The certification ECU (smart key ECU assembly) is unable to receive certain data from the bus buffer ECU for 5 seconds or more.	Both conditions are met: Turning the ignition switch to ON. The certification ECU (smart key ECU assembly) power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	The DTC remains stored until it is cleared using the GTS.

Starting Control

DTC	Detection Item	DTC Detection Condition	DTC Detection Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The certification ECU (smart key ECU assembly) is unable to receive certain data from the ECM for 2 seconds or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 2 seconds.	-	The DTC is stored only while the malfunction is present.

Multi-media Module Receiver Assembly (for Multi-media Module Receiver Type) / GTS Display "Navigation System"

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 Indication in Meter	DTC Storage Method
U0073	Sending Malfunction (Navigation to APGS)	The multi-media module receiver assembly is unable to send or receive data 5 times consecutively.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 5 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0100	Engine ECU Communication	Either condition is met: The multi-media module receiver assembly is unable to receive certain data from the ECM for 4 seconds or more. The multi-media module receiver assembly is unable to receive certain data from the ECM for 10 seconds or more.	Turning the ignition switch to ON.	Drive the vehicle for 10 seconds or more at a speed of 20 km/h (12 mph) or more.	-	The DTC remains stored until it is cleared using the GTS.
U0126	Steering Sensor Communication	Either condition is met: The multi-media module receiver assembly is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 0.72 seconds or more. The multi-media module receiver assembly is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 10.08 seconds or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 10.08 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0129	VSC(ECB*)ECU Communication	The multi-media module receiver assembly is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 4 second or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 5 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0130	VGRS ECU Communication	The multi-media module receiver assembly is unable to receive certain data from the steering control ECU for 0.72 seconds or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 0.72 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0131	Lost Communication with Electric Power Steering ECU	The multi-media module receiver assembly is unable to receive certain data from the power steering ECU assembly for 1 second or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 1 second.	-	The DTC remains stored until it is cleared using the GTS.
U0132	Air Suspension ECU Communication	The multi-media module receiver assembly is unable to receive certain data from the suspension control ECU for 10 seconds or more.	Turning the ignition switch to ON.	Drive the vehicle for 10 seconds or more at a speed of 20 km/h (12 mph) or more.	-	The DTC remains stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	The multi-media module receiver assembly is unable to receive certain data from the main body ECU (multiplex network body ECU) for 3 seconds or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 3 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0155	Meter ECU Communication	The multi-media module receiver assembly is unable to receive certain data from the combination meter assembly for 30 seconds or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 31 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0164	Air Conditioner ECU Communication	Either condition is met: The multi-media module receiver assembly is unable to receive certain data from the air conditioning amplifier assembly for 3 second or more. The multi-media module receiver assembly is unable to receive certain data from the air conditioning amplifier assembly for 6 second or more. The multi-media module receiver assembly is unable to receive certain data from the air conditioning amplifier assembly for 15 second or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 15 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0182	Lost Communication with Lighting Control Module Front	The multi-media module receiver assembly is unable to receive certain data from the headlight leveling ECU assembly for 1 second or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 1 second.	-	The DTC remains stored until it is cleared using the GTS.
U0233	Lost Communication with Blind Spot Monitor Master Module	The multi-media module receiver assembly is unable to receive certain data from the blind spot monitor sensor LH for 10 seconds or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 10 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U1110	Clearance Sonar ECU Communication	The multi-media module receiver assembly is unable to receive certain data from the clearance warning ECU assembly for 10 seconds or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 10 seconds.	-	The DTC remains stored until it is cleared using the GTS.

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

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 Indication in Meter	DTC Storage Method
U0073	Sending Malfunction (Navigation to APGS)	The radio and display receiver assembly is unable to send or receive data 5 times consecutively.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 5 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0100	Engine ECU Communication	Either condition is met: The radio and display receiver assembly is unable to receive certain data from the ECM for 4 seconds or more. The radio and display receiver assembly is unable to receive certain data from the ECM for 10 seconds or more.	Turning the ignition switch to ON.	Drive the vehicle for 10 seconds or more at a speed of 20 km/h (12 mph) or more.	-	The DTC remains stored until it is cleared using the GTS.
U0126	Steering Sensor Communication	Either condition is met: The radio and display receiver assembly is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 0.72 seconds or more. The radio and display receiver assembly is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 10.08 seconds or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 10.08 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0129	VSC(ECB*)ECU Communication	The radio and display receiver assembly is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 4 second or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 5 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0130	VGRS ECU Communication	The radio and display receiver assembly is unable to receive certain data from the steering control ECU for 0.72 seconds or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 0.72 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0131	Lost Communication with Electric Power Steering ECU	The radio and display receiver assembly is unable to receive certain data from the power steering ECU assembly for 1 second or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 1 second.	-	The DTC remains stored until it is cleared using the GTS.
U0132	Air Suspension ECU Communication	The radio and display receiver assembly is unable to receive certain data from the suspension control ECU for 10 seconds or more.	Turning the ignition switch to ON.	Drive the vehicle for 10 seconds or more at a speed of 20 km/h (12 mph) or more.	-	The DTC remains stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	The radio and display receiver assembly is unable to receive certain data from the main body ECU (multiplex network body ECU) for 3 seconds or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 3 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0155	Meter ECU Communication	The radio and display receiver assembly is unable to receive certain data from the combination meter assembly for 30 seconds or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 31 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0164	Air Conditioner ECU Communication	Either condition is met: The radio and display receiver assembly is unable to receive certain data from the air conditioning amplifier assembly for 3 second or more. The radio and display receiver assembly is unable to receive certain data from the air conditioning amplifier assembly for 6 second or more. The radio and display receiver assembly is unable to receive certain data from the air conditioning amplifier assembly for 15 second or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 15 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0182	Lost Communication with Lighting Control Module Front	The radio and display receiver assembly is unable to receive certain data from the headlight leveling ECU assembly for 1 second or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 1 second.	-	The DTC remains stored until it is cleared using the GTS.
U0233	Lost Communication with Blind Spot Monitor Master Module	The radio and display receiver assembly is unable to receive certain data from the blind spot monitor sensor LH for 10 seconds or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 10 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U1110	Clearance Sonar ECU Communication	The radio and display receiver assembly is unable to receive certain data from the clearance warning ECU assembly for 10 seconds or more.	Turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least 10 seconds.	-	The DTC remains stored until it is cleared using the GTS.

Suspension Control ECU / GTS Display "AHC" (w/ Active Height Control Suspension)

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 Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The suspension control ECU is unable to receive certain data from the ECM for 3 second or more.	All conditions are met: 1 second or more elapse after turning the ignition switch to ON. The vehicle speed is 30 km/h (19 mph) or more. The suspension control ECU power supply voltage is 10 V or higher.	Drive the vehicle for 4 seconds or more at a speed of 30 km/h (19 mph) or more.	-	The DTC is stored only while the malfunction is present.
U0101	Lost Communication with TCM	The suspension control ECU is unable to receive certain data from the ECM for 3 second or more.	All conditions are met: 1 second or more elapse after turning the ignition switch to ON. The vehicle speed is 30 km/h (19 mph) or more. The suspension control ECU power supply voltage is 10 V or higher.	Drive the vehicle for 4 seconds or more at a speed of 30 km/h (19 mph) or more.	-	The DTC is stored only while the malfunction is present.
U0114	Lost Communication with Four-Wheel Drive Clutch Control Module	The suspension control ECU is unable to receive certain data from the 4WD control ECU for 3 second or more.	All conditions are met: 1 second or more elapse after turning the ignition switch to ON. The vehicle speed is 30 km/h (19 mph) or more. The suspension control ECU power supply voltage is 10 V or higher.	Drive the vehicle for 4 seconds or more at a speed of 30 km/h (19 mph) or more.	-	The DTC is stored only while the malfunction is present.
U0122	Lost Communication with Vehicle Dynamics Control Module	The suspension control ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 3 second or more.	Both conditions are met: 2 seconds elapse after turning the ignition switch to ON. The suspension control ECU power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 5 seconds.	-	The DTC is stored only while the malfunction is present.
U0124	Lost Communication with Lateral Acceleration Sensor Module	The suspension control ECU is unable to receive certain data from the airbag sensor assembly for 3 second or more.	Both conditions are met: 1 second elapse after turning the ignition switch to ON. The suspension control ECU power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 4 seconds.	-	The DTC is stored only while the malfunction is present.
U0126	Lost Communication with Steering Angle Sensor Module	The suspension control ECU is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 3 second or more.	Both conditions are met: 1 second elapse after turning the ignition switch to ON. The suspension control ECU power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 4 seconds.	-	The DTC is stored only while the malfunction is present.
U0130	Lost Communication with VGRS	The suspension control ECU is unable to receive certain data from the steering control ECU for 3 second or more.	Both conditions are met: 3 seconds elapse after turning the ignition switch to ON. The suspension control ECU power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 6 seconds.	-	The DTC is stored only while the malfunction is present.
U0140	Lost Communication with Body Control Module	The suspension control ECU is unable to receive certain data from the main body ECU (multiplex network body ECU) for 5 second or more.	Both conditions are met: 1 second elapse after turning the ignition switch to ON. The suspension control ECU power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 6 seconds.	-	The DTC is stored only while the malfunction is present.

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 Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication With ECM/PCM "A"	Either condition is met: The 4WD control ECU is unable to receive certain data from the ECM for 1.85 seconds or more. The 4WD control ECU is unable to receive certain data from the ECM for 5.12 seconds or more.	Both conditions are met: 3 seconds or more elapses after turning the ignition switch to ON. The 4WD control ECU power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 8.12 seconds.	4LO indicator light blinks.	The DTC remains stored until it is cleared using the GTS.
U0122	Lost Communication With Vehicle Dynamics Control Module	Either condition is met: The 4WD control ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 0.72 seconds or more. The 4WD control ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 0.84 seconds or more.	Both conditions are met: 3 seconds or more elapses after turning the ignition switch to ON. The 4WD control ECU power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 3.84 seconds.	4LO indicator light blinks. CTR DIFF LOCK indicator light blinks. RR DIFF LOCK warning light blinks.	The DTC remains stored until it is cleared using the GTS.

DTC

Detection Item

DTC Detection Condition

DTC Detection Precondition

DTC Check Procedure

Warning Indication in Meter

DTC Storage Method

U0100

Lost Communication With ECM/PCM "A"

Either condition is met:

The 4WD control ECU is unable to receive certain data from the ECM for 1.85 seconds or more.
The 4WD control ECU is unable to receive certain data from the ECM for 5.12 seconds or more.

Both conditions are met:

3 seconds or more elapses after turning the ignition switch to ON.
The 4WD control ECU power supply voltage is 10 V or higher.

Turn the ignition switch to ON and wait at least 8.12 seconds.

4LO indicator light blinks.

The DTC remains stored until it is cleared using the GTS.

U0122

Lost Communication With Vehicle Dynamics Control Module

Either condition is met:

The 4WD control ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 0.72 seconds or more.
The 4WD control ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 0.84 seconds or more.

Both conditions are met:

3 seconds or more elapses after turning the ignition switch to ON.
The 4WD control ECU power supply voltage is 10 V or higher.

Turn the ignition switch to ON and wait at least 3.84 seconds.

4LO indicator light blinks.
CTR DIFF LOCK indicator light blinks.
RR DIFF LOCK warning light blinks.

The DTC remains stored until it is cleared using the GTS.

Driving Support ECU Assembly

GTS Display "Radar Cruise2" (w/ Dynamic Radar Cruise Control System)

DTC	Detection Item	DTC Detection Condition	DTC Detection Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The driving support ECU assembly is unable to receive certain data from the ECM for 0.92 seconds or more.	All conditions are met: 1 second or more elapse after turning the ignition switch to ON. The vehicle speed is 36 km/h (22 mph) or more. The driving support ECU assembly power supply voltage is 10 V or higher.	Drive the vehicle for 1.92 seconds or more at a speed of 36 km/h (22 mph) or more.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.
U0125	Lost Communication with Yaw Rate Sensor Module	The driving support ECU assembly is unable to receive certain data from the airbag sensor assembly for 0.772 seconds or more.	All conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The vehicle speed is 36 km/h (22 mph) or more. The driving support ECU assembly power supply voltage is 10 V or higher.	Drive the vehicle for 3.772 seconds or more at a speed of 36 km/h (22 mph) or more.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	The driving support ECU assembly is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 5.04 seconds or more.	All conditions are met: 1 second or more elapse after turning the ignition switch to ON. The vehicle speed is 36 km/h (22 mph) or more. The driving support ECU assembly power supply voltage is 10 V or higher.	Drive the vehicle for 6.04 seconds or more at a speed of 36 km/h (22 mph) or more.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	The driving support ECU assembly is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 1.08 seconds or more.	All conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The vehicle speed is 36 km/h (22 mph) or more. The driving support ECU assembly power supply voltage is 10 V or higher.	Drive the vehicle for 3.08 seconds or more at a speed of 36 km/h (22 mph) or more.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	The driving support ECU assembly is unable to receive certain data from the millimeter wave radar sensor assembly for 1.6 seconds or more.	All conditions are met: 1 second or more elapse after turning the ignition switch to ON. The vehicle speed is 36 km/h (22 mph) or more. The driving support ECU assembly power supply voltage is 10 V or higher.	Drive the vehicle for 2.6 seconds or more at a speed of 36 km/h (22 mph) or more.	Displays messages on the multi-information display.	The DTC remains 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 0.144 seconds or more.	All conditions are met: 1 second or more elapse after turning the ignition switch to ON. The vehicle speed is 36 km/h (22 mph) or more. The driving support ECU assembly power supply voltage is 10 V or higher.	Drive the vehicle for 1.144 seconds or more at a speed of 36 km/h (22 mph) or more.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.

GTS Display "Pre-Crash2" (w/ Pre-crash Safety System)

DTC	Detection Item	DTC Detection Condition	DTC Detection Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The driving support ECU assembly is unable to receive certain data from the ECM for 3.07 seconds or more.	All conditions are met: 6 seconds or more elapse after turning the ignition switch to ON. The vehicle speed is 5 km/h (3 mph) or more. The driving support ECU assembly power supply voltage is 10 V or higher.	Drive the vehicle for 6 seconds or more at a speed of 5 km/h (3 mph) or more.	The PCS indicator blinks. Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0125	Lost Communication with Yaw Rate Sensor Module	The driving support ECU assembly is unable to receive certain data from the airbag sensor assembly for 0.036 seconds or more.	Both conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The driving support ECU assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 3 seconds.	The PCS indicator blinks. Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0126	Lost Communication with Steering Angle Sensor Module	The driving support ECU assembly is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 3.02 seconds or more.	Both conditions are met: 6 seconds or more elapse after turning the ignition switch to ON. The driving support ECU assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 6 seconds.	The PCS indicator blinks. Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0129	Lost Communication with Brake System Control Module	The driving support ECU assembly is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 3 seconds or more.	Both conditions are met: 6 seconds or more elapse after turning the ignition switch to ON. The driving support ECU assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 6 seconds.	The PCS indicator blinks. Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	The driving support ECU assembly is unable to receive certain data from the millimeter wave radar sensor assembly for 0.3 seconds or more.	Both conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The driving support ECU assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 3 seconds.	The PCS indicator blinks. Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U023A	Lost Communication with Image Processing Module "A"	The driving support ECU assembly is unable to receive certain data from the forward recognition camera for 3 seconds or more.	Both conditions are met: 6 seconds or more elapse after turning the ignition switch to ON. The driving support ECU assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 6 seconds.	The PCS indicator blinks. Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U1002	Lost Communication with Gateway Module	The driving support ECU assembly detects a problem when communicating with the millimeter wave radar sensor assembly and forward recognition camera.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The driving support ECU assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 6 seconds.	The PCS indicator blinks. Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U1104	Lost Communication with Driving Support ECU	The driving support ECU assembly data sent to each ECU (sensor) is lost for 3 seconds or more.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The driving support ECU assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 2 seconds.	The PCS indicator blinks. Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.

Forward Recognition Camera / GTS Display "Front Recognition Camera" (w/ Pre-crash Safety System)

GTS Display "Front Recognition Camera" (w/ Pre-crash Safety System)

DTC	Detection Item	DTC Detection Condition	DTC Detection Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The forward recognition camera is unable to receive certain data from the ECM for 5 seconds or more.	All conditions are met: 2 seconds elapses after turning the ignition switch to ON. The vehicle speed is 1 km/h (1 mph) or more. The forward recognition camera power supply voltage is 8 to 16 V.	Drive the vehicle for 7 seconds at a speed of 1 km/h (1 mph) or more.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0101	Lost Communication with TCM	The forward recognition camera is unable to receive certain data from the ECM for 5 seconds or more.	All conditions are met: 2 seconds elapses after turning the ignition switch to ON. The vehicle speed is 1 km/h (1 mph) or more. The forward recognition camera power supply voltage is 8 to 16 V.	Drive the vehicle for 7 seconds at a speed of 1 km/h (1 mph) or more.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0123	Lost Communication with Yaw Rate Sensor Module	The forward recognition camera is unable to receive certain data from the airbag sensor assembly for 5 seconds or more.	All conditions are met: 2 seconds elapses after turning the ignition switch to ON. The vehicle speed is 1 km/h (1 mph) or more. The forward recognition camera power supply voltage is 8 to 16 V.	Drive the vehicle for 7 seconds at a speed of 1 km/h (1 mph) or more.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0129	Lost Communication with Brake System Control Module	The forward recognition camera is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 5 seconds or more.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The forward recognition camera power supply voltage is 8 to 16 V.	Turn the ignition switch to ON and wait at least 7 seconds.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0142	Lost Communication with Body Control Module "B"	The forward recognition camera is unable to receive certain data from the main body ECU (multiplex network body ECU) for 5 seconds or more.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The forward recognition camera power supply voltage is 8 to 16 V.	Turn the ignition switch to ON and wait at least 7 seconds.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0182	Lost Communication with Lighting Control Module Front	The forward recognition camera is unable to receive certain data from the headlight leveling ECU assembly for 5 seconds or more.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The forward recognition camera power supply voltage is 8 to 16 V.	Turn the ignition switch to ON and wait at least 7 seconds.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	The forward recognition camera is unable to receive certain data from the millimeter wave radar sensor assembly for 5 seconds or more.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The forward recognition camera power supply voltage is 8 to 16 V.	Turn the ignition switch to ON and wait at least 7 seconds.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
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.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The forward recognition camera power supply voltage is 8 to 16 V.	Turn the ignition switch to ON and wait at least 7 seconds.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.

GTS Display "LKA/LDA" (w/ Lane Departure Alert System)

DTC	Detection Item	DTC Detection Condition	DTC Detection Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The forward recognition camera is unable to receive certain data from the ECM for 5 seconds or more.	All conditions are met: 2 seconds elapses after turning the ignition switch to ON. The vehicle speed is 1 km/h (1 mph) or more. The forward recognition camera power supply voltage is 8 to 16 V.	Drive the vehicle for 7 seconds at a speed of 1 km/h (1 mph) or more.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0101	Lost Communication with TCM	The forward recognition camera is unable to receive certain data from the ECM for 5 seconds or more.	All conditions are met: 2 seconds elapses after turning the ignition switch to ON. The vehicle speed is 1 km/h (1 mph) or more. The forward recognition camera power supply voltage is 8 to 16 V.	Drive the vehicle for 7 seconds at a speed of 1 km/h (1 mph) or more.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0123	Lost Communication with Yaw Rate Sensor Module	The forward recognition camera is unable to receive certain data from the airbag sensor assembly for 5 seconds or more.	All conditions are met: 2 seconds elapses after turning the ignition switch to ON. The vehicle speed is 1 km/h (1 mph) or more. The forward recognition camera power supply voltage is 8 to 16 V.	Drive the vehicle for 7 seconds at a speed of 1 km/h (1 mph) or more.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0126	Lost Communication with Steering Angle Sensor Module	The forward recognition camera is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 5 seconds or more.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The forward recognition camera power supply voltage is 8 to 16 V.	Turn the ignition switch to ON and wait at least 7 seconds.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0129	Lost Communication with Brake System Control Module	The forward recognition camera is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 5 seconds or more.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The forward recognition camera power supply voltage is 8 to 16 V.	Turn the ignition switch to ON and wait at least 7 seconds.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0142	Lost Communication with Body Control Module "B"	The forward recognition camera is unable to receive certain data from the main body ECU (multiplex network body ECU) for 5 seconds or more.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The forward recognition camera power supply voltage is 8 to 16 V.	Turn the ignition switch to ON and wait at least 7 seconds.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0155	Lost Communication With Instrument Panel Cluster (IPC) Control Module	The forward recognition camera is unable to receive certain data from the combination meter assembly for 50 seconds or more.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The forward recognition camera power supply voltage is 8 to 16 V.	Turn the ignition switch to ON and wait at least 60 seconds.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	The forward recognition camera is unable to receive certain data from the millimeter wave radar sensor assembly for 5 seconds or more.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The forward recognition camera power supply voltage is 8 to 16 V.	Turn the ignition switch to ON and wait at least 7 seconds.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.
U1104	Lost Communication with Driving Support ECU	The forward recognition camera data sent to each ECU (sensor) is lost for 5 seconds or more.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The forward recognition camera power supply voltage is 8 to 16 V.	Turn the ignition switch to ON and wait at least 7 seconds.	Displays messages on the multi-information display.	The DTC is stored only while the malfunction is present.

Clearance Warning ECU Assembly / GTS Display "Clearance Sonar" (w/ TOYOTA Parking Assist-sensor System)

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 Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The clearance warning ECU assembly is unable to receive certain data from the ECM for 3.5 seconds or more.	Both conditions are met: 5 seconds or more elapse after turning the ignition switch to ON. The clearance warning ECU assembly power supply voltage is 10.2 V or higher.	Turn the ignition switch to ON and wait at least 8.5 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0101	Lost Communication with TCM	The clearance warning ECU assembly is unable to receive certain data from the ECM for 5 seconds or more.	Both conditions are met: 5 seconds or more elapse after turning the ignition switch to ON. The clearance warning ECU assembly power supply voltage is 10.2 V or higher.	Turn the ignition switch to ON and wait at least 10 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0155	Lost Communication With Instrument Panel Cluster (IPC) Control Module	The clearance warning ECU assembly is unable to receive certain data from the combination meter assembly for 5 seconds or more.	Both conditions are met: 5 seconds or more elapse after turning the ignition switch to ON. The clearance warning ECU assembly power supply voltage is 10.2 V or higher.	Turn the ignition switch to ON and wait at least 10 seconds.	-	The DTC remains stored until it is cleared using the GTS.

DTC

Detection Item

DTC Detection Condition

DTC Detection Precondition

DTC Check Procedure

Warning Indication in Meter

DTC Storage Method

U0100

Lost Communication with ECM/PCM "A"

The clearance warning ECU assembly is unable to receive certain data from the ECM for 3.5 seconds or more.

Both conditions are met:

5 seconds or more elapse after turning the ignition switch to ON.
The clearance warning ECU assembly power supply voltage is 10.2 V or higher.

Turn the ignition switch to ON and wait at least 8.5 seconds.

The DTC remains stored until it is cleared using the GTS.

U0101

Lost Communication with TCM

The clearance warning ECU assembly is unable to receive certain data from the ECM for 5 seconds or more.

Both conditions are met:

5 seconds or more elapse after turning the ignition switch to ON.
The clearance warning ECU assembly power supply voltage is 10.2 V or higher.

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

The DTC remains stored until it is cleared using the GTS.

U0155

Lost Communication With Instrument Panel Cluster (IPC) Control Module

The clearance warning ECU assembly is unable to receive certain data from the combination meter assembly for 5 seconds or more.

Both conditions are met:

5 seconds or more elapse after turning the ignition switch to ON.
The clearance warning ECU assembly power supply voltage is 10.2 V or higher.

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

The DTC remains stored until it is cleared using the GTS.

Parking Assist ECU / GTS Display "Intelligent Parking Assist System / Back Guide 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 Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0073	Control Module Communication Bus "A" Off	One of the following conditions is met: The parking assist ECU is unable to send or receive data for 0.4 seconds or more. The parking assist ECU cannot send or receive data (the bus is off) 10 times consecutively.	Both conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The parking assist ECU power supply voltage is 10 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"	One of the following conditions is met: The parking assist ECU is unable to receive certain data from the ECM for 3.5 seconds or more. The parking assist ECU is unable to receive certain data from the ECM for 10 seconds or more.	Both conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The parking assist ECU power supply voltage is 10 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.
U0114	Lost Communication with 4WD Control ECU	The parking assist ECU is unable to receive certain data from the 4WD control ECU for 1.32 seconds or more.	Both conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The parking assist ECU power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 4.42 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0124	Lost Communication with Lateral Acceleration Sensor Module	The parking assist ECU is unable to receive certain data from the airbag sensor assembly for 1.12 seconds or more.	Both conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The parking assist ECU power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 4.12 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	One of the following conditions is met: The parking assist ECU is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 3.5 seconds or more. The parking assist ECU is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 10 seconds or more.	Both conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The parking assist ECU power supply voltage is 10 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	One of the following conditions is met: The parking assist ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 1.12 seconds or more. The parking assist ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 1.24 seconds or more. The parking assist ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 1.36 seconds or more. The parking assist ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 1.48 seconds or more. The parking assist ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 3.88 seconds or more. The parking assist ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 10 seconds or more.	Both conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The parking assist ECU power supply voltage is 10 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.
U0130	Lost Communication with Steering Effort Control Module	The parking assist ECU is unable to receive certain data from the steering control ECU for 1.24 seconds or more.	Both conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The parking assist ECU power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 4.24 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	One of the following conditions is met: The parking assist ECU is unable to receive certain data from the main body ECU (multiplex network body ECU) for 4 seconds or more. The parking assist ECU is unable to receive certain data from the main body ECU (multiplex network body ECU) for 6 seconds or more. The parking assist ECU is unable to receive certain data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The parking assist ECU power supply voltage is 10 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.
U0233	Lost Communication with Blind Spot Monitor Master Module	The parking assist ECU is unable to receive certain data from the blind spot monitor sensor LH for 10 seconds or more.	Both conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The parking assist ECU power supply voltage is 10 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 transmission malfunction (message register)	Both conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The parking assist ECU power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 3 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U1110	Lost Communication with Clearance Sonar Module	The parking assist ECU is unable to receive certain data from the clearance warning ECU assembly for 10 seconds or more.	Both conditions are met: 3 seconds or more elapse after turning the ignition switch to ON. The parking assist ECU power supply voltage is 10 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 Multi-terrain Monitor System Click here.

Steering Control ECU / GTS Display "VGRS" (w/ Variable Gear Ratio Steering System)

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 Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The steering control ECU is unable to receive certain data from the ECM for 3 seconds or more.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The steering control ECU power supply voltage is 10 to 16 V.	Turn the ignition switch to ON and wait at least 4 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0101	Lost Communication with TCM	The steering control ECU is unable to receive certain data from the ECM for 12 seconds or more.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The steering control ECU power supply voltage is 10 to 16 V.	Turn the ignition switch to ON and wait at least 13 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0125	Lost Communication with Yaw Rate Sensor Module	The steering control ECU is unable to receive certain data from the airbag sensor assembly for 12 seconds or more.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The steering control ECU power supply voltage is 10 to 16 V.	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	The steering control ECU is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 3 seconds or more.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The steering control ECU power supply voltage is 10 to 16 V.	Turn the ignition switch to ON and wait at least 4 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Either condition is met: The steering control ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 3 seconds or more. The steering control ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 12 seconds or more.	Both conditions are met: 2 seconds or more elapses after turning the ignition switch to ON. The steering control ECU power supply voltage is 10 to 16 V.	Turn the ignition switch to ON and wait at least 14 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0131	Lost Communication with Power Steering Control Module	The steering control ECU is unable to receive certain data from the power steering ECU assembly for 3 seconds or more.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The steering control ECU power supply voltage is 10 to 16 V.	Turn the ignition switch to ON and wait at least 4 seconds.	-	The DTC remains stored until it is cleared using the GTS.

Tire Pressure Warning ECU / GTS Display "TPMS" (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 Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0129	Lost Communication with Brake System Control Module	The tire pressure warning ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 60 seconds or more.	Both conditions are met: Turning the ignition switch to ON. The tire pressure warning ECU power supply voltage is below 9.5 V.	Turn the ignition switch to ON and wait at least 60 seconds.	-	The DTC remains stored until it is cleared using the GTS.

DTC

Detection Item

DTC Detection Condition

DTC Detection Precondition

DTC Check Procedure

Warning Indication in Meter

DTC Storage Method

U0129

Lost Communication with Brake System Control Module

The tire pressure warning ECU is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 60 seconds or more.

Both conditions are met:

Turning the ignition switch to ON.
The tire pressure warning ECU power supply voltage is below 9.5 V.

Turn the ignition switch to ON and wait at least 60 seconds.

The DTC remains stored until it is cleared using the GTS.

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

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 Indication in Meter	DTC Storage Method
U0142	Lost Communication with Body ECU	Either condition is met: The multiplex tilt and telescopic ECU is unable to receive certain data from the main body ECU (multiplex network body ECU) for 3.3 seconds or more. The multiplex tilt and telescopic ECU is unable to receive certain data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: 10 seconds 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 multiplex tilt and telescopic ECU power supply voltage is 10 V or higher	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC is stored only while the malfunction is present.
U0208	Lost Communication with D-Seat ECU	The multiplex tilt and telescopic ECU is unable to receive certain data from the power seat switch assembly for 10 seconds or more.	Both conditions are met: 10 seconds 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 multiplex tilt and telescopic ECU power supply voltage is 10 V or higher	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC is stored only while the malfunction is present.

DTC

Detection Item

DTC Detection Condition

DTC Detection Precondition

DTC Check Procedure

Warning Indication in Meter

DTC Storage Method

U0142

Lost Communication with Body ECU

Either condition is met:

The multiplex tilt and telescopic ECU is unable to receive certain data from the main body ECU (multiplex network body ECU) for 3.3 seconds or more.
The multiplex tilt and telescopic ECU is unable to receive certain data from the main body ECU (multiplex network body ECU) for 10 seconds or more.

Both conditions are met:

10 seconds 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 multiplex tilt and telescopic ECU power supply voltage is 10 V or higher

Turn the ignition switch to ON and wait at least 20 seconds.

The DTC is stored only while the malfunction is present.

U0208

Lost Communication with D-Seat ECU

The multiplex tilt and telescopic ECU is unable to receive certain data from the power seat switch assembly for 10 seconds or more.

Both conditions are met:

10 seconds 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 multiplex tilt and telescopic ECU power supply voltage is 10 V or higher

Turn the ignition switch to ON and wait at least 20 seconds.

The DTC is stored only while the malfunction is present.

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 Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The blind spot monitor sensor LH is unable to receive certain data from the ECM for 10.84 seconds or more.	All conditions are met: 3 second elapses after turning the ignition switch to ON. The vehicle speed is 5 km/h (3 mph) or more. The blind spot monitor sensor LH power supply voltage is 10 V or higher.	Drive the vehicle for 13.84 seconds at a speed of 5 km/h (3 mph) or more.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.
U0125	Lost Communication with Yaw Rate Sensor Module	The blind spot monitor sensor LH is unable to receive information from the airbag sensor assembly for 3.06 seconds or more.	All conditions are met: 3 second elapses after turning the ignition switch to ON. The vehicle speed is 7 km/h (4 mph) or more. The blind spot monitor sensor LH power supply voltage is 10 V or higher.	Drive the vehicle for 6.06 seconds at a speed of 7 km/h (4 mph) or more.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Either condition is met: The blind spot monitor sensor LH is unable to receive information from the steering angle sensor for 3.04 seconds or more. The blind spot monitor sensor LH is unable to receive information from the steering angle sensor for 10.68 seconds or more.	Both conditions are met: 3 second elapses after turning the ignition switch to ON. The blind spot monitor sensor LH power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 13.68 seconds.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	One of the following conditions is met: The blind spot monitor sensor LH is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 3.04 seconds or more. The blind spot monitor sensor LH is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 3.07 seconds or more. The blind spot monitor sensor LH is unable to receive certain data from the master cylinder solenoid (skid control ECU) for 3.15 seconds or more.	Both conditions are met: 3 second elapses after turning the ignition switch to ON. The blind spot monitor sensor LH power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 6.15 seconds.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	The blind spot monitor sensor LH is unable to receive certain data from the main body ECU (multiplex network body ECU) for 10.6 seconds or more.	Both conditions are met: 3 second elapses after turning the ignition switch to ON. The blind spot monitor sensor LH power supply voltage is 10 V or higher.	Turn the ignition switch to ON and turn the blind spot monitor main switch to ON, and then wait 13.6 seconds or more.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.
U0163	Lost Communication With Navigation Control Module	The blind spot monitor sensor LH is unable to receive information from the radio and display receiver assembly1 or radio and display receiver assembly2 for 10.6 seconds or more.	Both conditions are met: 3 second elapses after turning the ignition switch to ON. The blind spot monitor sensor LH power supply voltage is 10 V or higher.	Turn the ignition switch to ON and turn the blind spot monitor main switch to ON, and then wait 13.6 seconds or more.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.
U0232*3	Lost Communication with Blind Spot Monitor Slave Module	The blind spot monitor sensor LH is unable to receive information from the blind spot monitor sensor RH for 10.6 seconds or more.	All conditions are met: 3 second elapses after turning the ignition switch to ON. The blind spot monitor main switch is on. The blind spot monitor sensor LH power supply voltage is 10 V or higher.	Turn the ignition switch to ON and turn the blind spot monitor main switch to ON, and then wait 13.6 seconds or more.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.

*1: for Multi-media Module Receiver Type
*2: for Radio and Display Type
*3: Refer to Blind Spot Monitor System Click here.

Outer Mirror Control ECU Assembly LH / GTS Display "D-Door Motor" (w/ Memory)

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 Indication in Meter	DTC Storage Method
U0142	Lost Communication With Body Control Module "B"	The outer mirror control ECU assembly LH is unable to receive certain data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: 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 certification ECU (smart key ECU assembly) power supply voltage is 10 V or higher.	Wait 10 seconds after turning the ignition switch to ACC or to ON.	-	The DTC remains stored until it is cleared using the GTS.

DTC

Detection Item

DTC Detection Condition

DTC Detection Precondition

DTC Check Procedure

Warning Indication in Meter

DTC Storage Method

U0142

Lost Communication With Body Control Module "B"

The outer mirror control ECU assembly LH is unable to receive certain data from the main body ECU (multiplex network body ECU) for 10 seconds or more.

Both conditions are met:

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 certification ECU (smart key ECU assembly) power supply voltage is 10 V or higher.

Wait 10 seconds after turning the ignition switch to ACC or to ON.

The DTC remains stored until it is cleared using the GTS.

Outer Mirror Control ECU Assembly RH / GTS Display "P-Door Motor" (w/ Memory)

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 Indication in Meter	DTC Storage Method
U0142	Lost Communication With Body Control Module "B"	The outer mirror control ECU assembly RH is unable to receive certain data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: 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 certification ECU (smart key ECU assembly) power supply voltage is 10 V or higher.	Wait 10 seconds after turning the ignition switch to ACC or to ON.	-	The DTC remains stored until it is cleared using the GTS.

DTC

Detection Item

DTC Detection Condition

DTC Detection Precondition

DTC Check Procedure

Warning Indication in Meter

DTC Storage Method

U0142

Lost Communication With Body Control Module "B"

The outer mirror control ECU assembly RH is unable to receive certain data from the main body ECU (multiplex network body ECU) for 10 seconds or more.

Both conditions are met:

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 certification ECU (smart key ECU assembly) power supply voltage is 10 V or higher.

Wait 10 seconds after turning the ignition switch to ACC or to ON.

The DTC remains stored until it is cleared using the GTS.

Power Back Door Unit Assembly (Power Back Door ECU) / GTS Display "Back Door" (w/ Power Back Door System)

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 Indication in Meter	DTC Storage Method
U0101	Lost Communication with TCM	The power back door unit assembly (power back door ECU) is unable to receive certain data from the ECM for 10 seconds or more.	Both conditions are met: Turning the ignition switch to ON. The power back door unit assembly (power back door ECU) power supply voltage is 10.4 V or higher.	Turn the ignition switch to ON and wait at least 10 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0141	Lost Communication with Body Control Module "A"	The power back door unit assembly (power back door ECU) is unable to receive certain data from the No. 2 main body ECU for 10 seconds or more.	Both 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 back door unit assembly (power back door ECU) power supply voltage is 10.4 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	The power back door unit assembly (power back door ECU) is unable to receive certain data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both 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 back door unit assembly (power back door ECU) power supply voltage is 10.4 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	The power back door unit assembly (power back door ECU) is unable to receive certain data from the combination meter assembly for 10 seconds or more.	Both 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 back door unit assembly (power back door ECU) power supply voltage is 10.4 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U1117	Lost Communication with Accessory Gateway	The power back door unit assembly (power back door ECU) is unable to receive certain data from the bus buffer ECU for 10 seconds or more.	Both 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 back door unit assembly (power back door ECU) power supply voltage is 10.4 V or higher.	Turn the ignition switch to ON and wait at least 20 seconds.	-	The DTC remains 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 Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The telematics transceiver is unable to receive certain data from the ECM for approximately 5 seconds or more.	10 seconds or more elapse after turning the ignition switch to ON.	Turn the ignition switch to ON and wait at least approximately 15 seconds.	-	The DTC remains stored until it is cleared using the GTS.

Central Gateway ECU

Tech Tips

The central gateway ECU is connected to the CAN communication system but CAN communication DTCs are not stored.
Airbag Sensor Assembly

Tech Tips

The airbag sensor assembly is connected to the CAN communication system but CAN communication DTCs are not stored.
Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)

Tech Tips

The spiral with sensor cable sub-assembly (steering angle sensor) is connected to the CAN communication system but CAN communication DTCs are not stored.
Power Seat Switch Assembly (w/ Memory)

Tech Tips

The power seat switch assembly connected to the CAN communication system but CAN communication DTCs are not stored.
No. 2 Main Body ECU (w/ Tail Gate Closer System)

Tech Tips

The No. 2 main body ECU connected to the CAN communication system but CAN communication DTCs are not stored.
Bus Buffer ECU (w/ Bus Buffer ECU)

Tech Tips

The bus buffer ECU is connected to the CAN communication system but CAN communication DTCs are not stored.
Inner Rear View Mirror Assembly (w/o Pre-crash Safety System, w/ Automatic High Beam System)

Tech Tips

The inner rear view mirror assembly is connected to the CAN communication system but CAN communication DTCs are not stored.
Millimeter Wave Radar Sensor Assembly (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.

DTC COMBINATION TABLE (OPEN OR SHORT IN BUS 2, PAST COMMUNICATION ERROR)

Regarding a past communication error of an ECU and sensor connected to the bus 2 (in this case, normal is displayed when performing the CAN bus check, but communication DTCs are output), the probable CAN bus line(s) that had a malfunction can be determined based on the following DTC combination table.

Tech Tips

Based on the table below and DTCs output from ECUs connected v CAN communication, the probable part for which communication stop occurred can be determined.
Regarding an open in a CAN bus line(s) and a communication stop that is currently occurring, the malfunctioning part can be confirmed easily by performing the CAN bus check using the GTS because the ECU or sensor connected to the CAN bus line(s) does not respond (the ECU or sensor name will not be displayed on the screen).
If an open in a CAN main bus line, a short between the CAN bus lines (CANH and CANL) or a short to ground or +B in the CAN bus occurs, DTCs of almost all ECUs (or sensors) on the CAN bus may be output, or a message indicating a communication error may be displayed on the GTS screen. In this case, check the resistance of the CAN bus (steps 8 to 16) first Click here.
If an open occurs in just one of the lines of a CAN bus line(s), DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.
○: DTC is output.
-: DTC is not output.
*: DTC U0073 may be stored when communication is lost.

Output from	Output DTC	Trouble Mode
		Open in CAN branch line(s)
		Main Body ECU Communication Stop Mode	AFS ECU Communication Stop Mode	Air Conditioning Amplifier Communication Stop Mode	Center Airbag Sensor Communication Stop Mode
Air conditioning amplifier assembly	U0100	-	-	○	-
	U0131	-	-	○	-
	U0142	○	-	○	-
	U0151	-	-	○	○
	U0155	-	-	○	-
	U0163	-	-	○	-
Headlight leveling ECU assembly*	U0100	-	○	-	-
	U0129	-	○	-	-
	U0132	-	○	-	-
	U0142	○	○	-	-
Main body ECU (multiplex network body ECU)	U0100	○	-	-	-
	U0101	○	-	-	-
	U0120	○	-	-	-
	U0132	○	-	-	-
	U0141	-	-	-	-
	U0151	○	-	-	○
	U0155	○	-	-	-
	U0182	○	○	-	-
	U0199	-	-	-	-
	U0200	-	-	-	-
	U0208	-	-	-	-
	U0230	-	-	-	-
	U023A	○	-	-	-
	U0327	○	-	-	-
	U1002	-	-	-	-
	U1115	-	-	-	-
	U1117	○	-	-	-
4WD control ECU	U0100	-	-	-	-
4WD control ECU	U0122	-	-	-	-
ECM	U0100	-	-	-	-
	U0122	-	-	-	-
	U1104	-	-	-	-
Certification ECU <Entry&Start>	U0100	-	-	-	-
	U0142	○	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Certification ECU <Power Source Control>	U0100	-	-	-	-
	U0140	○	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Certification ECU <Starting Control>	U0100	-	-	-	-
Combination meter assembly	U0100	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0142	○	-	-	-
	U0151	-	-	-	○
	U0163	-	-	-	-
	U0182	-	○	-	-
	U023A	-	-	-	-
	U1104	-	-	-	-
Steering control ECU	U0100	-	-	-	-
	U0101	-	-	-	-
	U0125	-	-	-	○
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0131	-	-	-	-
Master cylinder solenoid (skid control ECU)*	U0100	-	-	-	-
	U0114	-	-	-	-
	U0123	-	-	-	○
	U0124	-	-	-	-
	U0126	-	-	-	-
	U0130	-	-	-	-
Blind spot monitor sensor LH	U0100	-	-	-	-
	U0125	-	-	-	○
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0142	○	-	-	-
	U0163	-	-	-	-
Clearance warning ECU assembly	U0100	-	-	-	-
	U0101	-	-	-	-
	U0155	-	-	-	-
Driving support ECU assembly	U0100	-	-	-	-
	U0125	-	-	-	○
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0235	-	-	-	-
	U023A	-	-	-	-
	U1002	-	-	-	-
	U1104	-	-	-	-
Parking assist ECU*	U0100	-	-	-	-
	U0114	-	-	-	-
	U0124	-	-	-	○
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0140	○	-	-	-
	U0233	-	-	-	-
	U1110	-	-	-	-
Multi-media module receiver assembly*	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0131	-	-	-	-
	U0132	-	-	-	-
	U0140	○	-	-	-
	U0155	-	-	-	-
	U0164	-	-	○	-
	U0182	-	○	-	-
	U0233	-	-	-	-
	U1110	-	-	-	-
Radio and display receiver assembly*	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0131	-	-	-	-
	U0132	-	-	-	-
	U0140	○	-	-	-
	U0155	-	-	-	-
	U0164	-	-	○	-
	U0182	-	○	-	-
	U0233	-	-	-	-
	U1110	-	-	-	-
Outer mirror control ECU assembly RH	U0142	-	-	-	-
Outer mirror control ECU assembly LH	U0142	-	-	-	-
Power back door unit assembly (power back door ECU)	U0101	○	-	-	-
	U0141	-	-	-	-
	U0142	-	-	-	-
	U0155	○	-	-	-
	U1117	○	-	-	-
Tire pressure warning ECU	U0129	-	-	-	-
Multiplex tilt and telescopic ECU	U0142	-	-	-	-
Multiplex tilt and telescopic ECU	U0208	-	-	-	-
Suspension control ECU	U0100	-	-	-	-
	U0101	-	-	-	-
	U0114	-	-	-	-
	U0122	-	-	-	-
	U0124	-	-	-	○
	U0126	-	-	-	-
	U0130	-	-	-	-
	U0140	○	-	-	-
Power steering ECU assembly	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
Forward recognition camera	U0100	-	-	-	-
	U0101	-	-	-	-
	U0123	-	-	-	○
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0142	○	-	-	-
	U0155	-	-	-	-
	U0182	-	○	-	-
	U0235	-	-	-	-
	U1104	-	-	-	-
Telematics transceiver	U0100	-	-	-	-
Central gateway ECU	-	-	-	-	-
Airbag sensor assembly	-	-	-	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-	-	-	-
Power seat switch assembly	-	-	-	-	-
Bus buffer ECU	-	-	-	-	-
Inner rear view mirror assembly	-	-	-	-	-
Millimeter wave radar sensor assembly	-	-	-	-	-
No. 2 main body ECU	-	-	-	-	-

Output from	Output DTC	Trouble Mode
		Open in CAN branch line(s)
		Skid Control ECU Communication Stop Mode	Power Steering ECU Communication Stop Mode	Steering Angle Sensor Communication Stop Mode	Steering Control ECU Communication Stop Mode
Air conditioning amplifier assembly	U0100	-	-	-	-
	U0131	-	○	-	-
	U0142	-	-	-	-
	U0151	-	-	-	-
	U0155	-	-	-	-
	U0163	-	-	-	-
Headlight leveling ECU assembly*	U0100	-	-	-	-
	U0129	○	-	-	-
	U0132	-	-	-	○
	U0142	-	-	-	-
Main body ECU (multiplex network body ECU)	U0100	-	-	-	-
	U0101	-	-	-	-
	U0120	-	-	-	-
	U0132	-	-	-	○
	U0141	-	-	-	-
	U0151	-	-	-	-
	U0155	-	-	-	-
	U0182	-	-	-	-
	U0199	-	-	-	-
	U0200	-	-	-	-
	U0208	-	-	-	-
	U0230	-	-	-	-
	U023A	-	-	-	-
	U0327	-	-	-	-
	U1002	-	-	-	-
	U1115	-	-	-	-
	U1117	-	-	-	-
4WD control ECU	U0100	-	-	-	-
4WD control ECU	U0122	○	-	-	-
ECM	U0100	○	-	-	-
	U0122	○	-	-	-
	U1104	-	-	-	-
Certification ECU <Entry&Start>	U0100	-	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Certification ECU <Power Source Control>	U0100	-	-	-	-
	U0140	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Certification ECU <Starting Control>	U0100	-	-	-	-
Combination meter assembly	U0100	-	-	-	-
	U0129	○	-	-	-
	U0130	-	○	-	-
	U0142	-	-	-	-
	U0151	-	-	-	-
	U0163	-	-	-	-
	U0182	-	-	-	-
	U023A	-	-	-	-
	U1104	-	-	-	-
Steering control ECU	U0100	-	-	-	○
	U0101	-	-	-	○
	U0125	-	-	-	○
	U0126	-	-	○	○
	U0129	-	-	-	○
	U0131	-	○	-	○
Master cylinder solenoid (skid control ECU)*	U0100	○	-	-	-
	U0114	○	-	-	-
	U0123	○	-	-	-
	U0124	○	-	-	-
	U0126	○	-	○	-
	U0130	○	-	-	○
Blind spot monitor sensor LH	U0100	-	-	-	-
	U0125	-	-	-	-
	U0126	-	-	○	-
	U0129	○	-	-	-
	U0142	-	-	-	-
	U0163	-	-	-	-
Clearance warning ECU assembly	U0100	-	-	-	-
	U0101	-	-	-	-
	U0155	-	-	-	-
Driving support ECU assembly	U0100	-	-	-	-
	U0125	-	-	-	-
	U0126	-	-	○	-
	U0129	○	-	-	-
	U0235	-	-	-	-
	U023A	-	-	-	-
	U1002	-	-	-	-
	U1104	-	-	-	-
Parking assist ECU*	U0100	-	-	-	-
	U0114	-	-	-	-
	U0124	-	-	-	-
	U0126	-	-	○	-
	U0129	○	-	-	-
	U0130	-	-	-	○
	U0140	-	-	-	-
	U0233	-	-	-	-
	U1110	-	-	-	-
Multi-media module receiver assembly*	U0100	-	-	-	-
	U0126	-	-	○	-
	U0129	○	-	-	-
	U0130	-	-	-	○
	U0131	-	○	-	-
	U0132	-	-	-	-
	U0140	-	-	-	-
	U0155	-	-	-	-
	U0164	-	-	-	-
	U0182	-	-	-	-
	U0233	-	-	-	-
	U1110	-	-	-	-
Radio and display receiver assembly*	U0100	-	-	-	-
	U0126	-	-	○	-
	U0129	○	-	-	-
	U0130	-	-	-	○
	U0131	-	○	-	-
	U0132	-	-	-	-
	U0140	-	-	-	-
	U0155	-	-	-	-
	U0164	-	-	-	-
	U0182	-	-	-	-
	U0233	-	-	-	-
	U1110	-	-	-	-
Outer mirror control ECU assembly RH	U0142	-	-	-	-
Outer mirror control ECU assembly LH	U0142	-	-	-	-
Power back door unit assembly (power back door ECU)	U0101	-	-	-	-
	U0141	-	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Tire pressure warning ECU	U0129	○	-	-	-
Multiplex tilt and telescopic ECU	U0142	-	-	-	-
Multiplex tilt and telescopic ECU	U0208	-	-	-	-
Suspension control ECU	U0100	-	-	-	-
	U0101	-	-	-	-
	U0114	-	-	-	-
	U0122	○	-	-	-
	U0124	-	-	-	-
	U0126	-	-	○	-
	U0130	-	-	-	○
	U0140	-	-	-	-
Power steering ECU assembly	U0100	-	○	-	-
	U0126	-	○	-	-
	U0129	○	○	-	-
	U0130	-	○	-	○
Forward recognition camera	U0100	-	-	-	-
	U0101	-	-	-	-
	U0123	-	-	-	-
	U0126	-	-	○	-
	U0129	○	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U0182	-	-	-	-
	U0235	-	-	-	-
	U1104	-	-	-	-
Telematics transceiver	U0100	-	-	-	-
Central gateway ECU	-	-	-	-	-
Airbag sensor assembly	-	-	-	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-	-	-	-
Power seat switch assembly	-	-	-	-	-
Bus buffer ECU	-	-	-	-	-
Inner rear view mirror assembly	-	-	-	-	-
Millimeter wave radar sensor assembly	-	-	-	-	-
No. 2 main body ECU	-	-	-	-	-

Output from	Output DTC	Trouble Mode
		Open in CAN branch line(s)
		4WD Control ECU Communication Stop Mode	Tire Pressure Monitor ECU Communication Stop Mode	Certification ECU Communication Stop Mode	Central Gateway ECU Communication Stop Mode
Air conditioning amplifier assembly	U0100	-	-	-	-
	U0131	-	-	-	-
	U0142	-	-	-	-
	U0151	-	-	-	-
	U0155	-	-	-	-
	U0163	-	-	-	○
Headlight leveling ECU assembly*	U0100	-	-	-	-
	U0129	-	-	-	-
	U0132	-	-	-	-
	U0142	-	-	-	-
Main body ECU (multiplex network body ECU)	U0100	-	-	-	-
	U0101	-	-	-	-
	U0120	-	-	○	-
	U0132	-	-	-	-
	U0141	-	-	-	-
	U0151	-	-	-	-
	U0155	-	-	-	-
	U0182	-	-	-	-
	U0199	-	-	-	-
	U0200	-	-	-	-
	U0208	-	-	-	-
	U0230	-	-	-	-
	U023A	-	-	-	○
	U0327	-	-	○	-
	U1002	-	-	-	-
	U1115	-	-	-	-
	U1117	-	-	-	○
4WD control ECU	U0100	○	-	-	-
4WD control ECU	U0122	○	-	-	-
ECM	U0100	-	-	-	-
	U0122	-	-	-	-
	U1104	-	-	-	○
Certification ECU <Entry&Start>	U0100	-	-	○	-
	U0142	-	-	○	-
	U0155	-	-	○	-
	U1117	-	-	○	○
Certification ECU <Power Source Control>	U0100	-	-	○	-
	U0140	-	-	○	-
	U0155	-	-	○	-
	U1117	-	-	○	○
Certification ECU <Starting Control>	U0100	-	-	○	-
Combination meter assembly	U0100	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0142	-	-	-	-
	U0151	-	-	-	-
	U0163	-	-	-	○
	U0182	-	-	-	-
	U023A	-	-	-	○
	U1104	-	-	-	○
Steering control ECU	U0100	-	-	-	-
	U0101	-	-	-	-
	U0125	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0131	-	-	-	-
Master cylinder solenoid (skid control ECU)*	U0100	-	-	-	-
	U0114	○	-	-	-
	U0123	-	-	-	-
	U0124	-	-	-	-
	U0126	-	-	-	-
	U0130	-	-	-	-
Blind spot monitor sensor LH	U0100	-	-	-	○
	U0125	-	-	-	○
	U0126	-	-	-	○
	U0129	-	-	-	○
	U0142	-	-	-	○
	U0163	-	-	-	-
Clearance warning ECU assembly	U0100	-	-	-	○
	U0101	-	-	-	○
	U0155	-	-	-	○
Driving support ECU assembly	U0100	-	-	-	○
	U0125	-	-	-	○
	U0126	-	-	-	○
	U0129	-	-	-	○
	U0235	-	-	-	-
	U023A	-	-	-	-
	U1002	-	-	-	-
	U1104	-	-	-	○
Parking assist ECU*	U0100	-	-	-	○
	U0114	○	-	-	○
	U0124	-	-	-	○
	U0126	-	-	-	○
	U0129	-	-	-	○
	U0130	-	-	-	○
	U0140	-	-	-	○
	U0233	-	-	-	-
	U1110	-	-	-	-
Multi-media module receiver assembly*	U0100	-	-	-	○
	U0126	-	-	-	○
	U0129	-	-	-	○
	U0130	-	-	-	○
	U0131	-	-	-	○
	U0132	-	-	-	-
	U0140	-	-	-	○
	U0155	-	-	-	○
	U0164	-	-	-	○
	U0182	-	-	-	○
	U0233	-	-	-	-
	U1110	-	-	-	-
Radio and display receiver assembly*	U0100	-	-	-	○
	U0126	-	-	-	○
	U0129	-	-	-	○
	U0130	-	-	-	○
	U0131	-	-	-	○
	U0132	-	-	-	-
	U0140	-	-	-	○
	U0155	-	-	-	○
	U0164	-	-	-	○
	U0182	-	-	-	○
	U0233	-	-	-	-
	U1110	-	-	-	-
Outer mirror control ECU assembly RH	U0142	-	-	-	-
Outer mirror control ECU assembly LH	U0142	-	-	-	-
Power back door unit assembly (power back door ECU)	U0101	-	-	-	-
	U0141	-	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	○
Tire pressure warning ECU	U0129	-	○	-	-
Multiplex tilt and telescopic ECU	U0142	-	-	-	-
Multiplex tilt and telescopic ECU	U0208	-	-	-	-
Suspension control ECU	U0100	-	-	-	○
	U0101	-	-	-	○
	U0114	○	-	-	○
	U0122	-	-	-	○
	U0124	-	-	-	○
	U0126	-	-	-	○
	U0130	-	-	-	○
	U0140	-	-	-	○
Power steering ECU assembly	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
Forward recognition camera	U0100	-	-	-	○
	U0101	-	-	-	○
	U0123	-	-	-	○
	U0126	-	-	-	○
	U0129	-	-	-	○
	U0142	-	-	-	○
	U0155	-	-	-	○
	U0182	-	-	-	○
	U0235	-	-	-	-
	U1104	-	-	-	-
Telematics transceiver	U0100	-	-	-	○
Central gateway ECU	-	-	-	-	-
Airbag sensor assembly	-	-	-	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-	-	-	-
Power seat switch assembly	-	-	-	-	-
Bus buffer ECU	-	-	-	-	-
Inner rear view mirror assembly	-	-	-	-	-
Millimeter wave radar sensor assembly	-	-	-	-	-
No. 2 main body ECU	-	-	-	-	-

Output from	Output DTC	Trouble Mode
		Open in CAN main bus line(s)
		ECM Communication Stop Mode	No. 1 CAN Junction Connector - No. 2 CAN Junction Connector	Combination Meter ECU Communication Stop Mode
Air conditioning amplifier assembly	U0100	○	-	-
	U0131	-	○	-
	U0142	-	○	-
	U0151	-	○	-
	U0155	-	○	○
	U0163	-	-	-
Headlight leveling ECU assembly*	U0100	○	○	-
	U0129	-	-	-
	U0132	-	○	-
	U0142	-	-	-
Main body ECU (multiplex network body ECU)	U0100	○	○	-
	U0101	○	○	-
	U0120	-	-	-
	U0132	-	○	-
	U0141	-	-	-
	U0151	-	○	-
	U0155	-	-	○
	U0182	-	-	-
	U0199	-	-	-
	U0200	-	-	-
	U0208	-	-	-
	U0230	-	-	-
	U023A	-	○	-
	U0327	-	-	-
	U1002	-	-	-
	U1115	-	-	-
	U1117	-	○	-
4WD control ECU	U0100	○	-	-
4WD control ECU	U0122	-	○	-
ECM	U0100	○	○	-
	U0122	○	○	-
	U1104	○	-	-
Certification ECU <Entry&Start>	U0100	○	○	-
	U0142	-	-	-
	U0155	-	-	○
	U1117	-	○	-
Certification ECU <Power Source Control>	U0100	○	○	-
	U0140	-	-	-
	U0155	-	-	○
	U1117	-	○	-
Certification ECU <Starting Control>	U0100	○	○	-
Combination meter assembly	U0100	○	○	○
	U0129	-	-	○
	U0130	-	-	○
	U0142	-	-	○
	U0151	-	○	○
	U0163	-	○	○
	U0182	-	-	○
	U023A	-	○	○
	U1104	-	○	○
Steering control ECU	U0100	○	○	-
	U0101	○	○	-
	U0125	-	○	-
	U0126	-	-	-
	U0129	-	-	-
	U0131	-	○	-
Master cylinder solenoid (skid control ECU)*	U0100	○	○	-
	U0114	-	○	-
	U0123	-	○	-
	U0124	-	○	-
	U0126	-	-	-
	U0130	-	-	-
Blind spot monitor sensor LH	U0100	○	-	-
	U0125	-	-	-
	U0126	-	○	-
	U0129	-	○	-
	U0142	-	○	-
	U0163	-	-	-
Clearance warning ECU assembly	U0100	○	-	-
	U0101	○	-	-
	U0155	-	○	○
Driving support ECU assembly	U0100	○	-	-
	U0125	-	-	-
	U0126	-	○	-
	U0129	-	○	-
	U0235	-	-	-
	U023A	-	-	-
	U1002	-	-	-
	U1104	-	-	-
Parking assist ECU*	U0100	○	-	-
	U0114	-	-	-
	U0124	-	-	-
	U0126	-	○	-
	U0129	-	○	-
	U0130	-	○	-
	U0140	-	○	-
	U0233	-	-	-
	U1110	-	-	-
Multi-media module receiver assembly*	U0100	○	-	-
	U0126	-	○	-
	U0129	-	○	-
	U0130	-	○	-
	U0131	-	-	-
	U0132	-	-	-
	U0140	-	○	-
	U0155	-	○	○
	U0164	-	-	-
	U0182	-	○	-
	U0233	-	-	-
	U1110	-	-	-
Radio and display receiver assembly*	U0100	○	-	-
	U0126	-	○	-
	U0129	-	○	-
	U0130	-	○	-
	U0131	-	-	-
	U0132	-	-	-
	U0140	-	○	-
	U0155	-	○	○
	U0164	-	-	-
	U0182	-	○	-
	U0233	-	-	-
	U1110	-	-	-
Outer mirror control ECU assembly RH	U0142	-	-	-
Outer mirror control ECU assembly LH	U0142	-	-	-
Power back door unit assembly (power back door ECU)	U0101	○	○	-
	U0141	-	-	-
	U0142	-	-	-
	U0155	-	-	○
	U1117	-	○	-
Tire pressure warning ECU	U0129	-	○	-
Multiplex tilt and telescopic ECU	U0142	-	-	-
Multiplex tilt and telescopic ECU	U0208	-	-	-
Suspension control ECU	U0100	○	-	-
	U0101	○	-	-
	U0114	-	-	-
	U0122	-	○	-
	U0124	-	-	-
	U0126	-	○	-
	U0130	-	○	-
	U0140	-	○	-
Power steering ECU assembly	U0100	○	-	-
	U0126	-	○	-
	U0129	-	○	-
	U0130	-	○	-
Forward recognition camera	U0100	○	-	-
	U0101	○	-	-
	U0123	-	-	-
	U0126	-	○	-
	U0129	-	○	-
	U0142	-	○	-
	U0155	-	○	○
	U0182	-	○	-
	U0235	-	-	-
	U1104	-	-	-
Telematics transceiver	U0100	○	-	-
Central gateway ECU	-	-	-	-
Airbag sensor assembly	-	-	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-	-	-
Power seat switch assembly	-	-	-	-
Bus buffer ECU	-	-	-	-
Inner rear view mirror assembly	-	-	-	-
Millimeter wave radar sensor assembly	-	-	-	-
No. 2 main body ECU	-	-	-	-

Output from	Output DTC	Trouble Mode
		CAN bus lines short circuit or short to GND
		CANH - CANL CANH - GND CANL - GND
Air conditioning amplifier assembly	U0100	○
	U0131	○
	U0142	○
	U0151	○
	U0155	○
	U0163	○
Headlight leveling ECU assembly*	U0100	○
	U0129	○
	U0132	○
	U0142	○
Main body ECU (multiplex network body ECU)	U0100	○
	U0101	○
	U0120	○
	U0132	○
	U0141	-
	U0151	○
	U0155	○
	U0182	○
	U0199	-
	U0200	-
	U0208	-
	U0230	-
	U023A	○
	U0327	○
	U1002	-
	U1115	-
	U1117	○
4WD control ECU	U0100	○
4WD control ECU	U0122	○
ECM	U0100	○
	U0122	○
	U1104	○
Certification ECU <Entry&Start>	U0100	○
	U0142	○
	U0155	○
	U1117	○
Certification ECU <Power Source Control>	U0100	○
	U0140	○
	U0155	○
	U1117	○
Certification ECU <Starting Control>	U0100	○
Combination meter assembly	U0100	○
	U0129	○
	U0130	○
	U0142	○
	U0151	○
	U0163	○
	U0182	○
	U023A	○
	U1104	○
Steering control ECU	U0100	○
	U0101	○
	U0125	○
	U0126	○
	U0129	○
	U0131	○
Master cylinder solenoid (skid control ECU)*	U0100	○
	U0114	○
	U0123	○
	U0124	○
	U0126	○
	U0130	○
Blind spot monitor sensor LH	U0100	○
	U0125	○
	U0126	○
	U0129	○
	U0142	-
	U0163	-
Clearance warning ECU assembly	U0100	○
	U0101	○
	U0155	○
Driving support ECU assembly	U0100	○
	U0125	○
	U0126	○
	U0129	○
	U0235	-
	U023A	-
	U1002	-
	U1104	○
Parking assist ECU*	U0100	○
	U0114	○
	U0124	○
	U0126	○
	U0129	○
	U0130	○
	U0140	○
	U0233	-
	U1110	-
Multi-media module receiver assembly*	U0100	○
	U0126	○
	U0129	○
	U0130	○
	U0131	○
	U0132	-
	U0140	○
	U0155	○
	U0164	○
	U0182	○
	U0233	-
	U1110	-
Radio and display receiver assembly*	U0100	○
	U0126	○
	U0129	○
	U0130	○
	U0131	○
	U0132	-
	U0140	○
	U0155	○
	U0164	○
	U0182	○
	U0233	-
	U1110	-
Outer mirror control ECU assembly RH	U0142	-
Outer mirror control ECU assembly LH	U0142	-
Power back door unit assembly (power back door ECU)	U0101	○
	U0141	-
	U0142	-
	U0155	○
	U1117	○
Tire pressure warning ECU	U0129	-
Multiplex tilt and telescopic ECU	U0142	-
Multiplex tilt and telescopic ECU	U0208	-
Suspension control ECU	U0100	○
	U0101	○
	U0114	○
	U0122	○
	U0124	○
	U0126	○
	U0130	○
	U0140	○
Power steering ECU assembly	U0100	○
	U0126	○
	U0129	○
	U0130	○
Forward recognition camera	U0100	○
	U0101	○
	U0123	○
	U0126	○
	U0129	○
	U0142	○
	U0155	○
	U0182	○
	U0235	-
	U1104	-
Telematics transceiver	U0100	○
Central gateway ECU	-	-
Airbag sensor assembly	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-
Power seat switch assembly	-	-
Bus buffer ECU	-	-
Inner rear view mirror assembly	-	-
Millimeter wave radar sensor assembly	-	-
No. 2 main body ECU	-	-

DTC COMBINATION TABLE (OPEN OR SHORT IN BUS 3, PAST COMMUNICATION ERROR)

Regarding a past communication error of an ECU and sensor connected to the bus 3 (in this case, normal is displayed when performing the CAN bus check, but communication DTCs are output), the probable CAN bus line(s) that had a malfunction can be determined based on the following DTC combination table.

Tech Tips

Based on the table below and DTCs output from ECUs connected via CAN communication, the probable part for which communication stop occurred can be determined.
Regarding an open in a CAN bus line(s) and a communication stop that is currently occurring, the malfunctioning part can be confirmed easily by performing the CAN bus check using the GTS because the ECU or sensor connected to the CAN bus line(s) does not respond (the ECU or sensor name will not be displayed on the screen).
If an open in a CAN main bus line, a short between the CAN bus lines (CANH and CANL) or a short to ground or +B in the CAN bus occurs, DTCs of almost all ECUs (or sensors) on the CAN bus may be output, or a message indicating a communication error may be displayed on the GTS screen. In this case, check the resistance of the CAN bus (steps 8 to 16) first Click here.
If an open occurs in just one of the lines of a CAN bus line(s), DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.
○: DTC is output.
-: DTC is not output.
*: DTC U0073 may be stored when communication is lost.

Output from	Output DTC	Trouble Mode
		Open in CAN branch line(s)
		Multi-media Module Receiver Assembly Communication Stop Mode	Audio Receiver Assembly Communication Stop Mode	Bus Buffer ECU Communication Stop Mode	DCM Communication Stop Mode
Air conditioning amplifier assembly	U0100	-	-	-	-
	U0131	-	-	-	-
	U0142	-	-	-	-
	U0151	-	-	-	-
	U0155	-	-	-	-
	U0163	○	○	-	-
Headlight leveling ECU assembly*	U0100	-	-	-	-
	U0129	-	-	-	-
	U0132	-	-	-	-
	U0142	-	-	-	-
Main body ECU (multiplex network body ECU)	U0100	-	-	-	-
	U0101	-	-	-	-
	U0120	-	-	-	-
	U0132	-	-	-	-
	U0141	-	-	-	-
	U0151	-	-	-	-
	U0155	-	-	-	-
	U0182	-	-	-	-
	U0199	-	-	-	-
	U0200	-	-	-	-
	U0208	-	-	-	-
	U0230	-	-	-	-
	U023A	-	-	-	-
	U0327	-	-	-	-
	U1002	-	-	-	-
	U1115	-	-	-	-
	U1117	-	-	○	-
4WD control ECU	U0100	-	-	-	-
4WD control ECU	U0122	-	-	-	-
ECM	U0100	-	-	-	-
	U0122	-	-	-	-
	U1104	-	-	-	-
Certification ECU <Entry&Start>	U0100	-	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	○	-
Certification ECU <Power Source Control>	U0100	-	-	-	-
	U0140	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	○	-
Certification ECU <Starting Control>	U0100	-	-	-	-
Combination meter assembly	U0100	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0142	-	-	-	-
	U0151	-	-	-	-
	U0163	○	○	-	-
	U0182	-	-	-	-
	U023A	-	-	-	-
	U1104	-	-	-	-
Steering control ECU	U0100	-	-	-	-
	U0101	-	-	-	-
	U0125	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0131	-	-	-	-
Master cylinder solenoid (skid control ECU)*	U0100	-	-	-	-
	U0114	-	-	-	-
	U0123	-	-	-	-
	U0124	-	-	-	-
	U0126	-	-	-	-
	U0130	-	-	-	-
Blind spot monitor sensor LH	U0100	-	-	-	-
	U0125	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0142	-	-	-	-
	U0163	-	-	-	-
Clearance warning ECU assembly	U0100	-	-	-	-
	U0101	-	-	-	-
	U0155	-	-	-	-
Driving support ECU assembly	U0100	-	-	-	-
	U0125	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0235	-	-	-	-
	U023A	-	-	-	-
	U1002	-	-	-	-
	U1104	-	-	-	-
Parking assist ECU*	U0100	-	-	-	-
	U0114	-	-	-	-
	U0124	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0140	-	-	-	-
	U0233	-	-	-	-
	U1110	-	-	-	-
Multi-media module receiver assembly*	U0100	○	-	-	-
	U0126	○	-	-	-
	U0129	○	-	-	-
	U0130	○	-	-	-
	U0131	○	-	-	-
	U0132	○	-	-	-
	U0140	○	-	-	-
	U0155	○	-	-	-
	U0164	○	-	-	-
	U0182	○	-	-	-
	U0233	○	-	-	-
	U1110	○	-	-	-
Radio and display receiver assembly*	U0100	-	○	-	-
	U0126	-	○	-	-
	U0129	-	○	-	-
	U0130	-	○	-	-
	U0131	-	○	-	-
	U0132	-	○	-	-
	U0140	-	○	-	-
	U0155	-	○	-	-
	U0164	-	○	-	-
	U0182	-	○	-	-
	U0233	-	○	-	-
	U1110	-	○	-	-
Outer mirror control ECU assembly RH	U0142	-	-	-	-
Outer mirror control ECU assembly LH	U0142	-	-	-	-
Power back door unit assembly (power back door ECU)	U0101	-	-	-	-
	U0141	-	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Tire pressure warning ECU	U0129	-	-	-	-
Multiplex tilt and telescopic ECU	U0142	-	-	-	-
Multiplex tilt and telescopic ECU	U0208	-	-	-	-
Suspension control ECU	U0100	-	-	-	-
	U0101	-	-	-	-
	U0114	-	-	-	-
	U0122	-	-	-	-
	U0124	-	-	-	-
	U0126	-	-	-	-
	U0130	-	-	-	-
	U0140	-	-	-	-
Power steering ECU assembly	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
Forward recognition camera	U0100	-	-	-	-
	U0101	-	-	-	-
	U0123	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U0182	-	-	-	-
	U0235	-	-	-	-
	U1104	-	-	-	-
Telematics transceiver	U0100	-	-	-	○
Central gateway ECU	-	-	-	-	-
Airbag sensor assembly	-	-	-	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-	-	-	-
Power seat switch assembly	-	-	-	-	-
Bus buffer ECU	-	-	-	-	-
Inner rear view mirror assembly	-	-	-	-	-
Millimeter wave radar sensor assembly	-	-	-	-	-
No. 2 main body ECU	-	-	-	-	-

Output from	Output DTC	Trouble Mode
		Open in CAN main bus line(s)
		Central Gateway ECU Communication Stop Mode	No. 5 CAN Junction Connector - No. 6 CAN Junction Connector	No. 6 CAN Junction Connector - No. 2 CAN Junction Terminal
Air conditioning amplifier assembly	U0100	-	-	-
	U0131	-	-	-
	U0142	-	-	-
	U0151	-	-	-
	U0155	-	-	-
	U0163	○	-	-
Headlight leveling ECU assembly*	U0100	-	-	-
	U0129	-	-	-
	U0132	-	-	-
	U0142	-	-	-
Main body ECU (multiplex network body ECU)	U0100	-	-	-
	U0101	-	-	-
	U0120	-	-	-
	U0132	-	-	-
	U0141	-	-	-
	U0151	-	-	-
	U0155	-	-	-
	U0182	-	-	-
	U0199	-	-	-
	U0200	-	-	-
	U0208	-	-	-
	U0230	-	-	-
	U023A	-	-	-
	U0327	-	-	-
	U1002	-	-	-
	U1115	-	-	-
	U1117	○	-	-
4WD control ECU	U0100	-	-	-
4WD control ECU	U0122	-	-	-
ECM	U0100	-	-	-
	U0122	-	-	-
	U1104	-	-	-
Certification ECU <Entry&Start>	U0100	-	-	-
	U0142	-	-	-
	U0155	-	-	-
	U1117	○	-	-
Certification ECU <Power Source Control>	U0100	-	-	-
	U0140	-	-	-
	U0155	-	-	-
	U1117	○	-	-
Certification ECU <Starting Control>	U0100	-	-	-
Combination meter assembly	U0100	-	-	-
	U0129	-	-	-
	U0130	-	-	-
	U0142	-	-	-
	U0151	-	-	-
	U0163	○	-	-
	U0182	-	-	-
	U023A	-	-	-
	U1104	-	-	-
Steering control ECU	U0100	-	-	-
	U0101	-	-	-
	U0125	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0131	-	-	-
Master cylinder solenoid (skid control ECU)*	U0100	-	-	-
	U0114	-	-	-
	U0123	-	-	-
	U0124	-	-	-
	U0126	-	-	-
	U0130	-	-	-
Blind spot monitor sensor LH	U0100	-	-	-
	U0125	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0142	-	-	-
	U0163	-	-	-
Clearance warning ECU assembly	U0100	-	-	-
	U0101	-	-	-
	U0155	-	-	-
Driving support ECU assembly	U0100	-	-	-
	U0125	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0235	-	-	-
	U023A	-	-	-
	U1002	-	-	-
	U1104	-	-	-
Parking assist ECU*	U0100	-	-	-
	U0114	-	-	-
	U0124	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0130	-	-	-
	U0140	-	-	-
	U0233	-	-	-
	U1110	-	-	-
Multi-media module receiver assembly*	U0100	○	-	-
	U0126	○	-	-
	U0129	○	-	-
	U0130	○	-	-
	U0131	○	-	-
	U0132	○	-	-
	U0140	○	-	-
	U0155	○	-	-
	U0164	○	-	-
	U0182	○	-	-
	U0233	○	-	-
	U1110	○	-	-
Radio and display receiver assembly*	U0100	○	-	-
	U0126	○	-	-
	U0129	○	-	-
	U0130	○	-	-
	U0131	○	-	-
	U0132	○	-	-
	U0140	○	-	-
	U0155	○	-	-
	U0164	○	-	-
	U0182	○	-	-
	U0233	○	-	-
	U1110	○	-	-
Outer mirror control ECU assembly RH	U0142	-	-	-
Outer mirror control ECU assembly LH	U0142	-	-	-
Power back door unit assembly (power back door ECU)	U0101	-	-	-
	U0141	-	-	-
	U0142	-	-	-
	U0155	-	-	-
	U1117	○	-	-
Tire pressure warning ECU	U0129	-	-	-
Multiplex tilt and telescopic ECU	U0142	-	-	-
Multiplex tilt and telescopic ECU	U0208	-	-	-
Suspension control ECU	U0100	-	-	-
	U0101	-	-	-
	U0114	-	-	-
	U0122	-	-	-
	U0124	-	-	-
	U0126	-	-	-
	U0130	-	-	-
	U0140	-	-	-
Power steering ECU assembly	U0100	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0130	-	-	-
Forward recognition camera	U0100	-	-	-
	U0101	-	-	-
	U0123	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0142	-	-	-
	U0155	-	-	-
	U0182	-	-	-
	U0235	-	-	-
	U1104	-	-	-
Telematics transceiver	U0100	○	○	-
Central gateway ECU	-	-	-	-
Airbag sensor assembly	-	-	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-	-	-
Power seat switch assembly	-	-	-	-
Bus buffer ECU	-	-	-	-
Inner rear view mirror assembly	-	-	-	-
Millimeter wave radar sensor assembly	-	-	-	-
No. 2 main body ECU	-	-	-	-

Output from	Output DTC	Trouble Mode
		CAN bus lines short circuit or short to GND
		CANH - CANL CANH - GND CANL - GND
Air conditioning amplifier assembly	U0100	-
	U0131	-
	U0142	-
	U0151	-
	U0155	-
	U0163	○
Headlight leveling ECU assembly*	U0100	-
	U0129	-
	U0132	-
	U0142	-
Main body ECU (multiplex network body ECU)	U0100	-
	U0101	-
	U0120	-
	U0132	-
	U0141	-
	U0151	-
	U0155	-
	U0182	-
	U0199	-
	U0200	-
	U0208	-
	U0230	-
	U023A	-
	U0327	-
	U1002	-
	U1115	-
	U1117	○
4WD control ECU	U0100	-
4WD control ECU	U0122	-
ECM	U0100	-
	U0122	-
	U1104	-
Certification ECU <Entry&Start>	U0100	-
	U0142	-
	U0155	-
	U1117	○
Certification ECU <Power Source Control>	U0100	-
	U0140	-
	U0155	-
	U1117	○
Certification ECU <Starting Control>	U0100	-
Combination meter assembly	U0100	-
	U0129	-
	U0130	-
	U0142	-
	U0151	-
	U0163	○
	U0182	-
	U023A	-
	U1104	-
Steering control ECU	U0100	-
	U0101	-
	U0125	-
	U0126	-
	U0129	-
	U0131	-
Master cylinder solenoid (skid control ECU)*	U0100	-
	U0114	-
	U0123	-
	U0124	-
	U0126	-
	U0130	-
Blind spot monitor sensor LH	U0100	-
	U0125	-
	U0126	-
	U0129	-
	U0142	-
	U0163	-
Clearance warning ECU assembly	U0100	-
	U0101	-
	U0155	-
Driving support ECU assembly	U0100	-
	U0125	-
	U0126	-
	U0129	-
	U0235	-
	U023A	-
	U1002	-
	U1104	-
Parking assist ECU*	U0100	-
	U0114	-
	U0124	-
	U0126	-
	U0129	-
	U0130	-
	U0140	-
	U0233	-
	U1110	-
Multi-media module receiver assembly*	U0100	○
	U0126	○
	U0129	○
	U0130	○
	U0131	○
	U0132	○
	U0140	○
	U0155	○
	U0164	○
	U0182	○
	U0233	○
	U1110	○
Radio and display receiver assembly*	U0100	○
	U0126	○
	U0129	○
	U0130	○
	U0131	○
	U0132	○
	U0140	○
	U0155	○
	U0164	○
	U0182	○
	U0233	○
	U1110	○
Outer mirror control ECU assembly RH	U0142	-
Outer mirror control ECU assembly LH	U0142	-
Power back door unit assembly (power back door ECU)	U0101	-
	U0141	-
	U0142	-
	U0155	-
	U1117	○
Tire pressure warning ECU	U0129	-
Multiplex tilt and telescopic ECU	U0142	-
Multiplex tilt and telescopic ECU	U0208	-
Suspension control ECU	U0100	-
	U0101	-
	U0114	-
	U0122	-
	U0124	-
	U0126	-
	U0130	-
	U0140	-
Power steering ECU assembly	U0100	-
	U0126	-
	U0129	-
	U0130	-
Forward recognition camera	U0100	-
	U0101	-
	U0123	-
	U0126	-
	U0129	-
	U0142	-
	U0155	-
	U0182	-
	U0235	-
	U1104	-
Telematics transceiver	U0100	○
Central gateway ECU	-	-
Airbag sensor assembly	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-
Power seat switch assembly	-	-
Bus buffer ECU	-	-
Inner rear view mirror assembly	-	-
Millimeter wave radar sensor assembly	-	-
No. 2 main body ECU	-	-

DTC COMBINATION TABLE (OPEN OR SHORT IN BUS 5, PAST COMMUNICATION ERROR)

Regarding a past communication error of an ECU and sensor connected to the bus 5 (in this case, normal is displayed when performing the CAN bus check, but communication DTCs are output), the probable CAN bus line(s) that had a malfunction can be determined based on the following DTC combination table.

Tech Tips

Based on the table below and DTCs output from ECUs connected via CAN communication, the probable part for which communication stop occurred can be determined.
Regarding an open in a CAN bus line(s) and a communication stop that is currently occurring, the malfunctioning part can be confirmed easily by performing the CAN bus check using the GTS because the ECU or sensor connected to the CAN bus line(s) does not respond (the ECU or sensor name will not be displayed on the screen).
If an open in a CAN main bus line, a short between the CAN bus lines (CANH and CANL) or a short to ground or +B in the CAN bus occurs, DTCs of almost all ECUs (or sensors) on the CAN bus may be output, or a message indicating a communication error may be displayed on the GTS screen. In this case, check the resistance of the CAN bus (steps 8 to 16) first Click here.
If an open occurs in just one of the lines of a CAN bus line(s), DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.
○: DTC is output.
-: DTC is not output.
*: DTC U0073 may be stored when communication is lost.

Output from	Output DTC	Trouble Mode
		Open in CAN branch line(s)
		Clearance Warning ECU Communication Stop Mode	Parking Assist ECU Communication Stop Mode	Suspension Control ECU Communication Stop Mode	Blind Spot Monitor Sensor Communication Stop Mode
Air conditioning amplifier assembly	U0100	-	-	-	-
	U0131	-	-	-	-
	U0142	-	-	-	-
	U0151	-	-	-	-
	U0155	-	-	-	-
	U0163	-	-	-	-
Headlight leveling ECU assembly*	U0100	-	-	-	-
	U0129	-	-	-	-
	U0132	-	○	-	-
	U0142	-	-	-	-
Main body ECU (multiplex network body ECU)	U0100	-	-	-	-
	U0101	-	-	-	-
	U0120	-	-	-	-
	U0132	-	-	-	-
	U0141	-	-	-	-
	U0151	-	-	-	-
	U0155	-	-	-	-
	U0182	-	-	-	-
	U0199	-	-	-	-
	U0200	-	-	-	-
	U0208	-	-	-	-
	U0230	-	-	-	-
	U023A	-	-	-	-
	U0327	-	-	-	-
	U1002	-	-	-	-
	U1115	-	-	-	-
	U1117	-	-	-	-
4WD control ECU	U0100	-	-	-	-
4WD control ECU	U0122	-	-	-	-
ECM	U0100	-	-	-	-
	U0122	-	-	-	-
	U1104	-	-	-	-
Certification ECU <Entry&Start>	U0100	-	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Certification ECU <Power Source Control>	U0100	-	-	-	-
	U0140	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Certification ECU <Starting Control>	U0100	-	-	-	-
Combination meter assembly	U0100	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0142	-	-	-	-
	U0151	-	-	-	-
	U0163	-	-	-	-
	U0182	-	-	-	-
	U023A	-	-	-	-
	U1104	-	-	-	-
Steering control ECU	U0100	-	-	-	-
	U0101	-	-	-	-
	U0125	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0131	-	-	-	-
Master cylinder solenoid (skid control ECU)*	U0100	-	-	-	-
	U0114	-	-	-	-
	U0123	-	-	-	-
	U0124	-	-	-	-
	U0126	-	-	-	-
	U0130	-	-	-	-
Blind spot monitor sensor LH	U0100	-	-	-	○
	U0125	-	-	-	○
	U0126	-	-	-	○
	U0129	-	-	-	○
	U0142	-	-	-	○
	U0163	-	-	-	○
Clearance warning ECU assembly	U0100	○	-	-	-
	U0101	○	-	-	-
	U0155	○	-	-	-
Driving support ECU assembly	U0100	-	-	-	-
	U0125	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0235	-	-	-	-
	U023A	-	-	-	-
	U1002	-	-	-	-
	U1104	-	-	-	-
Parking assist ECU*	U0100	-	○	-	-
	U0114	-	○	-	-
	U0124	-	○	-	-
	U0126	-	○	-	-
	U0129	-	○	-	-
	U0130	-	○	-	-
	U0140	-	○	-	-
	U0233	-	○	-	-
	U1110	○	○	-	○
Multi-media module receiver assembly*	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0131	-	-	-	-
	U0132	-	-	○	-
	U0140	-	-	-	-
	U0155	-	-	-	-
	U0164	-	-	-	-
	U0182	-	-	-	-
	U0233	-	-	-	○
	U1110	○	-	-	-
Radio and display receiver assembly*	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0131	-	-	-	-
	U0132	-	-	○	-
	U0140	-	-	-	-
	U0155	-	-	-	-
	U0164	-	-	-	-
	U0182	-	-	-	-
	U0233	-	-	-	○
	U1110	○	-	-	-
Outer mirror control ECU assembly RH	U0142	-	-	-	-
Outer mirror control ECU assembly LH	U0142	-	-	-	-
Power back door unit assembly (power back door ECU)	U0101	-	-	-	-
	U0141	-	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Tire pressure warning ECU	U0129	-	-	-	-
Multiplex tilt and telescopic ECU	U0142	-	-	-	-
Multiplex tilt and telescopic ECU	U0208	-	-	-	-
Suspension control ECU	U0100	-	-	○	-
	U0101	-	-	○	-
	U0114	-	-	○	-
	U0122	-	-	○	-
	U0124	-	-	○	-
	U0126	-	-	○	-
	U0130	-	-	○	-
	U0140	-	-	○	-
Power steering ECU assembly	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
Forward recognition camera	U0100	-	-	-	-
	U0101	-	-	-	-
	U0123	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U0182	-	-	-	-
	U0235	-	-	-	-
	U1104	-	-	-	-
Telematics transceiver	U0100	-	-	-	-
Central gateway ECU	-	-	-	-	-
Airbag sensor assembly	-	-	-	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-	-	-	-
Power seat switch assembly	-	-	-	-	-
Bus buffer ECU	-	-	-	-	-
Inner rear view mirror assembly	-	-	-	-	-
Millimeter wave radar sensor assembly	-	-	-	-	-
No. 2 main body ECU	-	-	-	-	-

Output from	Output DTC	Trouble Mode
		Open in CAN branch line(s)
		Inner Rear View Mirror Assembly Communication Stop Mode	Driving Support ECU Communication Stop Mode	Millimeter Wave Radar Sensor Communication Stop Mode	Front Camera Module Communication Stop Mode
Air conditioning amplifier assembly	U0100	-	-	-	-
	U0131	-	-	-	-
	U0142	-	-	-	-
	U0151	-	-	-	-
	U0155	-	-	-	-
	U0163	-	-	-	-
Headlight leveling ECU assembly*	U0100	-	-	-	-
	U0129	-	-	-	-
	U0132	-	-	-	-
	U0142	-	-	-	-
Main body ECU (multiplex network body ECU)	U0100	-	-	-	-
	U0101	-	-	-	-
	U0120	-	-	-	-
	U0132	-	-	-	-
	U0141	-	-	-	-
	U0151	-	-	-	-
	U0155	-	-	-	-
	U0182	-	-	-	-
	U0199	-	-	-	-
	U0200	-	-	-	-
	U0208	-	-	-	-
	U0230	-	-	-	-
	U023A	○	-	○	-
	U0327	-	-	-	-
	U1002	-	-	-	-
	U1115	-	-	-	-
	U1117	-	-	-	-
4WD control ECU	U0100	-	-	-	-
4WD control ECU	U0122	-	-	-	-
ECM	U0100	-	-	-	-
	U0122	-	-	-	-
	U1104	-	○	-	-
Certification ECU <Entry&Start>	U0100	-	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Certification ECU <Power Source Control>	U0100	-	-	-	-
	U0140	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Certification ECU <Starting Control>	U0100	-	-	-	-
Combination meter assembly	U0100	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0142	-	-	-	-
	U0151	-	-	-	-
	U0163	-	-	-	-
	U0182	-	-	-	-
	U023A	○	-	-	○
	U1104	-	○	-	-
Steering control ECU	U0100	-	-	-	-
	U0101	-	-	-	-
	U0125	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0131	-	-	-	-
Master cylinder solenoid (skid control ECU)*	U0100	-	-	-	-
	U0114	-	-	-	-
	U0123	-	-	-	-
	U0124	-	-	-	-
	U0126	-	-	-	-
	U0130	-	-	-	-
Blind spot monitor sensor LH	U0100	-	-	-	-
	U0125	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0142	-	-	-	-
	U0163	-	-	-	-
Clearance warning ECU assembly	U0100	-	-	-	-
	U0101	-	-	-	-
	U0155	-	-	-	-
Driving support ECU assembly	U0100	-	○	-	-
	U0125	-	○	-	-
	U0126	-	○	-	-
	U0129	-	○	-	-
	U0235	-	○	○	-
	U023A	-	○	-	○
	U1002	-	-	-	-
	U1104	-	○	-	-
Parking assist ECU*	U0100	○	-	-	-
	U0114	○	-	-	-
	U0124	○	-	-	-
	U0126	○	-	-	-
	U0129	○	-	-	-
	U0130	○	-	-	-
	U0140	○	-	-	-
	U0233	○	-	-	-
	U1110	○	-	-	-
Multi-media module receiver assembly*	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0131	-	-	-	-
	U0132	-	-	-	-
	U0140	-	-	-	-
	U0155	-	-	-	-
	U0164	-	-	-	-
	U0182	-	-	-	-
	U0233	-	-	-	-
	U1110	-	-	-	-
Radio and display receiver assembly*	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0131	-	-	-	-
	U0132	-	-	-	-
	U0140	-	-	-	-
	U0155	-	-	-	-
	U0164	-	-	-	-
	U0182	-	-	-	-
	U0233	-	-	-	-
	U1110	-	-	-	-
Outer mirror control ECU assembly RH	U0142	-	-	-	-
Outer mirror control ECU assembly LH	U0142	-	-	-	-
Power back door unit assembly (power back door ECU)	U0101	-	-	-	-
	U0141	-	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Tire pressure warning ECU	U0129	-	-	-	-
Multiplex tilt and telescopic ECU	U0142	-	-	-	-
Multiplex tilt and telescopic ECU	U0208	-	-	-	-
Suspension control ECU	U0100	-	-	-	-
	U0101	-	-	-	-
	U0114	-	-	-	-
	U0122	-	-	-	-
	U0124	-	-	-	-
	U0126	-	-	-	-
	U0130	-	-	-	-
	U0140	-	-	-	-
Power steering ECU assembly	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
Forward recognition camera	U0100	-	-	-	○
	U0101	-	-	-	○
	U0123	-	-	-	○
	U0126	-	-	-	○
	U0129	-	-	-	○
	U0142	-	-	-	○
	U0155	-	-	-	○
	U0182	-	-	-	○
	U0235	-	-	-	-
	U1104	-	-	-	-
Telematics transceiver	U0100	-	-	-	-
Central gateway ECU	-	-	-	-	-
Airbag sensor assembly	-	-	-	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-	-	-	-
Power seat switch assembly	-	-	-	-	-
Bus buffer ECU	-	-	-	-	-
Inner rear view mirror assembly	-	-	-	-	-
Millimeter wave radar sensor assembly	-	-	-	-	-
No. 2 main body ECU	-	-	-	-	-

Output from	Output DTC	Trouble Mode
		Open in CAN main bus line(s)
		Central Gateway ECU Communication Stop Mode	No. 3 CAN Junction Connector - No. 4 CAN Junction Connector	No. 4 CAN Junction Connector - No. 1 CAN Junction Terminal
Air conditioning amplifier assembly	U0100	-	-	-
	U0131	-	-	-
	U0142	-	-	-
	U0151	-	-	-
	U0155	-	-	-
	U0163	-	-	-
Headlight leveling ECU assembly*	U0100	-	-	-
	U0129	-	-	-
	U0132	○	○	-
	U0142	-	-	-
Main body ECU (multiplex network body ECU)	U0100	-	-	-
	U0101	-	-	-
	U0120	-	-	-
	U0132	-	-	-
	U0141	-	-	-
	U0151	-	-	-
	U0155	-	-	-
	U0182	-	-	-
	U0199	-	-	-
	U0200	-	-	-
	U0208	-	-	-
	U0230	-	-	-
	U023A	○	-	-
	U0327	-	-	-
	U1002	-	-	-
	U1115	-	-	-
	U1117	-	-	-
4WD control ECU	U0100	-	-	-
4WD control ECU	U0122	-	-	-
ECM	U0100	-	-	-
	U0122	-	-	-
	U1104	○	-	-
Certification ECU <Entry&Start>	U0100	-	-	-
	U0142	-	-	-
	U0155	-	-	-
	U1117	-	-	-
Certification ECU <Power Source Control>	U0100	-	-	-
	U0140	-	-	-
	U0155	-	-	-
	U1117	-	-	-
Certification ECU <Starting Control>	U0100	-	-	-
Combination meter assembly	U0100	-	-	-
	U0129	-	-	-
	U0130	-	-	-
	U0142	-	-	-
	U0151	-	-	-
	U0163	-	-	-
	U0182	-	-	-
	U023A	○	-	-
	U1104	○	-	-
Steering control ECU	U0100	-	-	-
	U0101	-	-	-
	U0125	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0131	-	-	-
Master cylinder solenoid (skid control ECU)*	U0100	-	-	-
	U0114	-	-	-
	U0123	-	-	-
	U0124	-	-	-
	U0126	-	-	-
	U0130	-	-	-
Blind spot monitor sensor LH	U0100	○	-	-
	U0125	○	-	-
	U0126	○	-	-
	U0129	○	-	-
	U0142	○	-	-
	U0163	○	-	-
Clearance warning ECU assembly	U0100	○	-	-
	U0101	○	-	-
	U0155	○	-	-
Driving support ECU assembly	U0100	○	-	-
	U0125	○	-	-
	U0126	○	-	-
	U0129	○	-	-
	U0235	-	-	-
	U023A	-	-	-
	U1002	-	-	-
	U1104	-	-	-
Parking assist ECU*	U0100	○	-	-
	U0114	○	-	-
	U0124	○	-	-
	U0126	○	-	-
	U0129	○	-	-
	U0130	○	-	-
	U0140	○	-	-
	U0233	-	○	-
	U1110	-	-	-
Multi-media module receiver assembly*	U0100	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0130	-	-	-
	U0131	-	-	-
	U0132	○	○	-
	U0140	-	-	-
	U0155	-	-	-
	U0164	-	-	-
	U0182	-	-	-
	U0233	○	○	-
	U1110	○	-	-
Radio and display receiver assembly*	U0100	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0130	-	-	-
	U0131	-	-	-
	U0132	○	○	-
	U0140	-	-	-
	U0155	-	-	-
	U0164	-	-	-
	U0182	-	-	-
	U0233	○	○	-
	U1110	○	-	-
Outer mirror control ECU assembly RH	U0142	-	-	-
Outer mirror control ECU assembly LH	U0142	-	-	-
Power back door unit assembly (power back door ECU)	U0101	-	-	-
	U0141	-	-	-
	U0142	-	-	-
	U0155	-	-	-
	U1117	-	-	-
Tire pressure warning ECU	U0129	-	-	-
Multiplex tilt and telescopic ECU	U0142	-	-	-
Multiplex tilt and telescopic ECU	U0208	-	-	-
Suspension control ECU	U0100	○	○	-
	U0101	○	○	-
	U0114	○	○	-
	U0122	○	○	-
	U0124	○	○	-
	U0126	○	○	-
	U0130	○	○	-
	U0140	○	○	-
Power steering ECU assembly	U0100	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0130	-	-	-
Forward recognition camera	U0100	○	-	-
	U0101	○	-	-
	U0123	○	-	-
	U0126	○	-	-
	U0129	○	-	-
	U0142	○	-	-
	U0155	○	-	-
	U0182	○	-	-
	U0235	-	-	-
	U1104	-	-	-
Telematics transceiver	U0100	-	-	-
Central gateway ECU	-	-	-	-
Airbag sensor assembly	-	-	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-	-	-
Power seat switch assembly	-	-	-	-
Bus buffer ECU	-	-	-	-
Inner rear view mirror assembly	-	-	-	-
Millimeter wave radar sensor assembly	-	-	-	-
No. 2 main body ECU	-	-	-	-

Output from	Output DTC	Trouble Mode
		CAN bus lines short circuit or short to GND
		CANH - CANL CANH - GND CANL - GND
Air conditioning amplifier assembly	U0100	-
	U0131	-
	U0142	-
	U0151	-
	U0155	-
	U0163	-
Headlight leveling ECU assembly*	U0100	-
	U0129	-
	U0132	○
	U0142	-
Main body ECU (multiplex network body ECU)	U0100	-
	U0101	-
	U0120	-
	U0132	-
	U0141	-
	U0151	-
	U0155	-
	U0182	-
	U0199	-
	U0200	-
	U0208	-
	U0230	-
	U023A	○
	U0327	-
	U1002	-
	U1115	-
	U1117	-
4WD control ECU	U0100	-
4WD control ECU	U0122	-
ECM	U0100	-
	U0122	-
	U1104	○
Certification ECU <Entry&Start>	U0100	-
	U0142	-
	U0155	-
	U1117	-
Certification ECU <Power Source Control>	U0100	-
	U0140	-
	U0155	-
	U1117	-
Certification ECU <Starting Control>	U0100	-
Combination meter assembly	U0100	-
	U0129	-
	U0130	-
	U0142	-
	U0151	-
	U0163	-
	U0182	-
	U023A	○
	U1104	○
Steering control ECU	U0100	-
	U0101	-
	U0125	-
	U0126	-
	U0129	-
	U0131	-
Master cylinder solenoid (skid control ECU)*	U0100	-
	U0114	-
	U0123	-
	U0124	-
	U0126	-
	U0130	-
Blind spot monitor sensor LH	U0100	○
	U0125	○
	U0126	○
	U0129	○
	U0142	○
	U0163	○
Clearance warning ECU assembly	U0100	○
	U0101	○
	U0155	○
Driving support ECU assembly	U0100	○
	U0125	○
	U0126	○
	U0129	○
	U0235	○
	U023A	○
	U1002	-
	U1104	○
Parking assist ECU*	U0100	○
	U0114	○
	U0124	○
	U0126	○
	U0129	○
	U0130	○
	U0140	○
	U0233	○
	U1110	○
Multi-media module receiver assembly*	U0100	-
	U0126	-
	U0129	-
	U0130	-
	U0131	-
	U0132	○
	U0140	-
	U0155	-
	U0164	-
	U0182	-
	U0233	○
	U1110	○
Radio and display receiver assembly*	U0100	-
	U0126	-
	U0129	-
	U0130	-
	U0131	-
	U0132	○
	U0140	-
	U0155	-
	U0164	-
	U0182	-
	U0233	○
	U1110	○
Outer mirror control ECU assembly RH	U0142	-
Outer mirror control ECU assembly LH	U0142	-
Power back door unit assembly (power back door ECU)	U0101	-
	U0141	-
	U0142	-
	U0155	-
	U1117	-
Tire pressure warning ECU	U0129	-
Multiplex tilt and telescopic ECU	U0142	-
Multiplex tilt and telescopic ECU	U0208	-
Suspension control ECU	U0100	○
	U0101	○
	U0114	○
	U0122	○
	U0124	○
	U0126	○
	U0130	○
	U0140	○
Power steering ECU assembly	U0100	-
	U0126	-
	U0129	-
	U0130	-
Forward recognition camera	U0100	○
	U0101	○
	U0123	○
	U0126	○
	U0129	○
	U0142	○
	U0155	○
	U0182	○
	U0235	-
	U1104	-
Telematics transceiver	U0100	-
Central gateway ECU	-	-
Airbag sensor assembly	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-
Power seat switch assembly	-	-
Bus buffer ECU	-	-
Inner rear view mirror assembly	-	-
Millimeter wave radar sensor assembly	-	-
No. 2 main body ECU	-	-

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

Regarding a past communication error of an ECU and sensor connected to the sub bus 1 (in this case, normal is displayed when performing the CAN bus check, but communication DTCs are output), the probable CAN bus line(s) that had a malfunction can be determined based on the following DTC combination table.

Tech Tips

Based on the table below and DTCs output from ECUs connected via CAN communication, the probable part for which communication stop occurred can be determined.
Regarding an open in a CAN bus line(s) and a communication stop that is currently occurring, the malfunctioning part can be confirmed easily by performing the CAN bus check using the GTS because the ECU or sensor connected to the CAN bus line(s) does not respond (the ECU or sensor name will not be displayed on the screen).
If an open occurs in just one of the lines of a CAN bus line(s), DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.
○: DTC is output.
-: DTC is not output.
*: DTC U0073 may be stored when communication is lost.

Output from	Output DTC	Trouble Mode
		Open in CAN branch line(s)
		Outer Mirror ECU Assembly RH Communication Stop Mode	Outer Mirror ECU Assembly LH Communication Stop Mode	Power Seat Switch Assembly Communication Stop Mode
Air conditioning amplifier assembly	U0100	-	-	-
	U0131	-	-	-
	U0142	-	-	-
	U0151	-	-	-
	U0155	-	-	-
	U0163	-	-	-
Headlight leveling ECU assembly*	U0100	-	-	-
	U0129	-	-	-
	U0132	-	-	-
	U0142	-	-	-
Main body ECU (multiplex network body ECU)	U0100	-	-	-
	U0101	-	-	-
	U0120	-	-	-
	U0132	-	-	-
	U0141	-	-	-
	U0151	-	-	-
	U0155	-	-	-
	U0182	-	-	-
	U0199	-	○	-
	U0200	○	-	-
	U0208	-	-	○
	U0230	-	-	-
	U023A	-	-	-
	U0327	-	-	-
	U1002	-	-	-
	U1115	-	-	-
	U1117	-	-	-
4WD control ECU	U0100	-	-	-
4WD control ECU	U0122	-	-	-
ECM	U0100	-	-	-
	U0122	-	-	-
	U1104	-	-	-
Certification ECU <Entry&Start>	U0100	-	-	-
	U0142	-	-	-
	U0155	-	-	-
	U1117	-	-	-
Certification ECU <Power Source Control>	U0100	-	-	-
	U0140	-	-	-
	U0155	-	-	-
	U1117	-	-	-
Certification ECU <Starting Control>	U0100	-	-	-
Combination meter assembly	U0100	-	-	-
	U0129	-	-	-
	U0130	-	-	-
	U0142	-	-	-
	U0151	-	-	-
	U0163	-	-	-
	U0182	-	-	-
	U023A	-	-	-
	U1104	-	-	-
Steering control ECU	U0100	-	-	-
	U0101	-	-	-
	U0125	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0131	-	-	-
Master cylinder solenoid (skid control ECU)*	U0100	-	-	-
	U0114	-	-	-
	U0123	-	-	-
	U0124	-	-	-
	U0126	-	-	-
	U0130	-	-	-
Blind spot monitor sensor LH	U0100	-	-	-
	U0125	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0142	-	-	-
	U0163	-	-	-
Clearance warning ECU assembly	U0100	-	-	-
	U0101	-	-	-
	U0155	-	-	-
Driving support ECU assembly	U0100	-	-	-
	U0125	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0235	-	-	-
	U023A	-	-	-
	U1002	-	-	-
	U1104	-	-	-
Parking assist ECU*	U0100	-	-	-
	U0114	-	-	-
	U0124	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0130	-	-	-
	U0140	-	-	-
	U0233	-	-	-
	U1110	-	-	-
Multi-media module receiver assembly*	U0100	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0130	-	-	-
	U0131	-	-	-
	U0132	-	-	-
	U0140	-	-	-
	U0155	-	-	-
	U0164	-	-	-
	U0182	-	-	-
	U0233	-	-	-
	U1110	-	-	-
Radio and display receiver assembly*	U0100	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0130	-	-	-
	U0131	-	-	-
	U0132	-	-	-
	U0140	-	-	-
	U0155	-	-	-
	U0164	-	-	-
	U0182	-	-	-
	U0233	-	-	-
	U1110	-	-	-
Outer mirror control ECU assembly RH	U0142	○	-	-
Outer mirror control ECU assembly LH	U0142	-	○	-
Power back door unit assembly (power back door ECU)	U0101	-	-	-
	U0141	-	-	-
	U0142	-	-	-
	U0155	-	-	-
	U1117	-	-	-
Multiplex tilt and telescopic ECU	U0142	-	-	-
Multiplex tilt and telescopic ECU	U0208	-	-	○
Tire pressure warning ECU	U0129	-	-	-
Suspension control ECU	U0100	-	-	-
	U0101	-	-	-
	U0114	-	-	-
	U0122	-	-	-
	U0124	-	-	-
	U0126	-	-	-
	U0130	-	-	-
	U0140	-	-	-
Power steering ECU assembly	U0100	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0130	-	-	-
Forward recognition camera	U0100	-	-	-
	U0101	-	-	-
	U0123	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0142	-	-	-
	U0155	-	-	-
	U0182	-	-	-
	U0235	-	-	-
	U1104	-	-	-
Telematics transceiver	U0100	-	-	-
Central gateway ECU	-	-	-	-
Airbag sensor assembly	-	-	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-	-	-
Power seat switch assembly	-	-	-	-
Bus buffer ECU	-	-	-	-
Inner rear view mirror assembly	-	-	-	-
Millimeter wave radar sensor assembly	-	-	-	-
No. 2 main body ECU	-	-	-	-

Output from	Output DTC	Trouble Mode
		Open in CAN branch line(s)
		Power Back Door ECU Communication Stop Mode	No. 2 Main Body ECU Communication Stop Mode	Multiplex Tilt and Telescopic ECU Communication Stop Mode
Air conditioning amplifier assembly	U0100	-	-	-
	U0131	-	-	-
	U0142	-	-	-
	U0151	-	-	-
	U0155	-	-	-
	U0163	-	-	-
Headlight leveling ECU assembly*	U0100	-	-	-
	U0129	-	-	-
	U0132	-	-	-
	U0142	-	-	-
Main body ECU (multiplex network body ECU)	U0100	-	-	-
	U0101	-	-	-
	U0120	-	-	-
	U0132	-	-	-
	U0141	-	○	-
	U0151	-	-	-
	U0155	-	-	-
	U0182	-	-	-
	U0199	-	-	-
	U0200	-	-	-
	U0208	-	-	-
	U0230	○	-	-
	U023A	-	-	-
	U0327	-	-	-
	U1002	-	-	-
	U1115	-	-	○
	U1117	-	-	-
4WD control ECU	U0100	-	-	-
4WD control ECU	U0122	-	-	-
ECM	U0100	-	-	-
	U0122	-	-	-
	U1104	-	-	-
Certification ECU <Entry&Start>	U0100	-	-	-
	U0142	-	-	-
	U0155	-	-	-
	U1117	-	-	-
Certification ECU <Power Source Control>	U0100	-	-	-
	U0140	-	-	-
	U0155	-	-	-
	U1117	-	-	-
Certification ECU <Starting Control>	U0100	-	-	-
Combination meter assembly	U0100	-	-	-
	U0129	-	-	-
	U0130	-	-	-
	U0142	-	-	-
	U0151	-	-	-
	U0163	-	-	-
	U0182	-	-	-
	U023A	-	-	-
	U1104	-	-	-
Steering control ECU	U0100	-	-	-
	U0101	-	-	-
	U0125	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0131	-	-	-
Master cylinder solenoid (skid control ECU)*	U0100	-	-	-
	U0114	-	-	-
	U0123	-	-	-
	U0124	-	-	-
	U0126	-	-	-
	U0130	-	-	-
Blind spot monitor sensor LH	U0100	-	-	-
	U0125	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0142	-	-	-
	U0163	-	-	-
Clearance warning ECU assembly	U0100	-	-	-
	U0101	-	-	-
	U0155	-	-	-
Driving support ECU assembly	U0100	-	-	-
	U0125	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0235	-	-	-
	U023A	-	-	-
	U1002	-	-	-
	U1104	-	-	-
Parking assist ECU*	U0100	-	-	-
	U0114	-	-	-
	U0124	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0130	-	-	-
	U0140	-	-	-
	U0233	-	-	-
	U1110	-	-	-
Multi-media module receiver assembly*	U0100	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0130	-	-	-
	U0131	-	-	-
	U0132	-	-	-
	U0140	-	-	-
	U0155	-	-	-
	U0164	-	-	-
	U0182	-	-	-
	U0233	-	-	-
	U1110	-	-	-
Radio and display receiver assembly*	U0100	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0130	-	-	-
	U0131	-	-	-
	U0132	-	-	-
	U0140	-	-	-
	U0155	-	-	-
	U0164	-	-	-
	U0182	-	-	-
	U0233	-	-	-
	U1110	-	-	-
Outer mirror control ECU assembly RH	U0142	-	-	-
Outer mirror control ECU assembly LH	U0142	-	-	-
Power back door unit assembly (power back door ECU)	U0101	○	-	-
	U0141	○	-	-
	U0142	○	-	-
	U0155	○	-	-
	U1117	○	-	-
Multiplex tilt and telescopic ECU	U0142	-	-	○
Multiplex tilt and telescopic ECU	U0208	-	-	○
Tire pressure warning ECU	U0129	-	-	-
Suspension control ECU	U0100	-	-	-
	U0101	-	-	-
	U0114	-	-	-
	U0122	-	-	-
	U0124	-	-	-
	U0126	-	-	-
	U0130	-	-	-
	U0140	-	-	-
Power steering ECU assembly	U0100	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0130	-	-	-
Forward recognition camera	U0100	-	-	-
	U0101	-	-	-
	U0123	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0142	-	-	-
	U0155	-	-	-
	U0182	-	-	-
	U0235	-	-	-
	U1104	-	-	-
Telematics transceiver	U0100	-	-	-
Central gateway ECU	-	-	-	-
Airbag sensor assembly	-	-	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-	-	-
Power seat switch assembly	-	-	-	-
Bus buffer ECU	-	-	-	-
Inner rear view mirror assembly	-	-	-	-
Millimeter wave radar sensor assembly	-	-	-	-
No. 2 main body ECU	-	-	-	-

Output from	Output DTC	Trouble Mode
		Open in CAN main bus line(s)
		Main Body ECU Communication Stop Mode	No. 7 CAN Junction Connector - No. 8 CAN Junction Connector	No. 8 CAN Junction Connector - No. 9 CAN Junction Connector	No. 9 CAN Junction Connector - No. 3 CAN Junction Terminal
Air conditioning amplifier assembly	U0100	-	-	-	-
	U0131	-	-	-	-
	U0142	-	-	-	-
	U0151	-	-	-	-
	U0155	-	-	-	-
	U0163	-	-	-	-
Headlight leveling ECU assembly*	U0100	-	-	-	-
	U0129	-	-	-	-
	U0132	-	-	-	-
	U0142	-	-	-	-
Main body ECU (multiplex network body ECU)	U0100	-	-	-	-
	U0101	-	-	-	-
	U0120	-	-	-	-
	U0132	-	-	-	-
	U0141	○	○	○	-
	U0151	-	-	-	-
	U0155	-	-	-	-
	U0182	-	-	-	-
	U0199	○	○	-	-
	U0200	○	-	-	-
	U0208	○	-	-	-
	U0230	○	○	○	-
	U023A	-	-	-	-
	U0327	-	-	-	-
	U1002	-	-	-	-
	U1115	○	-	-	-
	U1117	-	-	-	-
4WD control ECU	U0100	-	-	-	-
4WD control ECU	U0122	-	-	-	-
ECM	U0100	-	-	-	-
	U0122	-	-	-	-
	U1104	-	-	-	-
Certification ECU <Entry&Start>	U0100	-	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Certification ECU <Power Source Control>	U0100	-	-	-	-
	U0140	-	-	-	-
	U0155	-	-	-	-
	U1117	-	-	-	-
Certification ECU <Starting Control>	U0100	-	-	-	-
Combination meter assembly	U0100	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0142	-	-	-	-
	U0151	-	-	-	-
	U0163	-	-	-	-
	U0182	-	-	-	-
	U023A	-	-	-	-
	U1104	-	-	-	-
Steering control ECU	U0100	-	-	-	-
	U0101	-	-	-	-
	U0125	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0131	-	-	-	-
Master cylinder solenoid (skid control ECU)*	U0100	-	-	-	-
	U0114	-	-	-	-
	U0123	-	-	-	-
	U0124	-	-	-	-
	U0126	-	-	-	-
	U0130	-	-	-	-
Blind spot monitor sensor LH	U0100	-	-	-	-
	U0125	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0142	-	-	-	-
	U0163	-	-	-	-
Clearance warning ECU assembly	U0100	-	-	-	-
	U0101	-	-	-	-
	U0155	-	-	-	-
Driving support ECU assembly	U0100	-	-	-	-
	U0125	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0235	-	-	-	-
	U023A	-	-	-	-
	U1002	-	-	-	-
	U1104	-	-	-	-
Parking assist ECU*	U0100	-	-	-	-
	U0114	-	-	-	-
	U0124	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0140	-	-	-	-
	U0233	-	-	-	-
	U1110	-	-	-	-
Multi-media module receiver assembly*	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0131	-	-	-	-
	U0132	-	-	-	-
	U0140	-	-	-	-
	U0155	-	-	-	-
	U0164	-	-	-	-
	U0182	-	-	-	-
	U0233	-	-	-	-
	U1110	-	-	-	-
Radio and display receiver assembly*	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
	U0131	-	-	-	-
	U0132	-	-	-	-
	U0140	-	-	-	-
	U0155	-	-	-	-
	U0164	-	-	-	-
	U0182	-	-	-	-
	U0233	-	-	-	-
	U1110	-	-	-	-
Outer mirror control ECU assembly RH	U0142	○	○	-	-
Outer mirror control ECU assembly LH	U0142	○	-	-	-
Power back door unit assembly (power back door ECU)	U0101	○	○	○	-
	U0141	○	○	○	-
	U0142	○	○	○	-
	U0155	○	○	○	-
	U1117	○	○	○	-
Multiplex tilt and telescopic ECU	U0142	○	○	-	-
Multiplex tilt and telescopic ECU	U0208	-	-	-	-
Tire pressure warning ECU	U0129	-	-	-	-
Suspension control ECU	U0100	-	-	-	-
	U0101	-	-	-	-
	U0114	-	-	-	-
	U0122	-	-	-	-
	U0124	-	-	-	-
	U0126	-	-	-	-
	U0130	-	-	-	-
	U0140	-	-	-	-
Power steering ECU assembly	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0130	-	-	-	-
Forward recognition camera	U0100	-	-	-	-
	U0101	-	-	-	-
	U0123	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
	U0142	-	-	-	-
	U0155	-	-	-	-
	U0182	-	-	-	-
	U0235	-	-	-	-
	U1104	-	-	-	-
Telematics transceiver	U0100	-	-	-	-
Central gateway ECU	-	-	-	-	-
Airbag sensor assembly	-	-	-	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-	-	-	-
Power seat switch assembly	-	-	-	-	-
Bus buffer ECU	-	-	-	-	-
Inner rear view mirror assembly	-	-	-	-	-
Millimeter wave radar sensor assembly	-	-	-	-	-
No. 2 main body ECU	-	-	-	-	-

Output from	Output DTC	Trouble Mode
		CAN bus lines short circuit or short to GND
		CANH - CANL CANH - GND CANL - GND
Air conditioning amplifier assembly	U0100	-
	U0131	-
	U0142	-
	U0151	-
	U0155	-
	U0163	-
Headlight leveling ECU assembly*	U0100	-
	U0129	-
	U0132	-
	U0142	-
Main body ECU (multiplex network body ECU)	U0100	-
	U0101	-
	U0120	-
	U0132	-
	U0141	○
	U0151	-
	U0155	-
	U0182	-
	U0199	○
	U0200	○
	U0208	○
	U0230	○
	U023A	-
	U0327	-
	U1002	○
	U1115	○
	U1117	-
4WD control ECU	U0100	-
4WD control ECU	U0122	-
ECM	U0100	-
	U0122	-
	U1104	-
Certification ECU <Entry&Start>	U0100	-
	U0142	-
	U0155	-
	U1117	-
Certification ECU <Power Source Control>	U0100	-
	U0140	-
	U0155	-
	U1117	-
Certification ECU <Starting Control>	U0100	-
Combination meter assembly	U0100	-
	U0129	-
	U0130	-
	U0142	-
	U0151	-
	U0163	-
	U0182	-
	U023A	-
	U1104	-
Steering control ECU	U0100	-
	U0101	-
	U0125	-
	U0126	-
	U0129	-
	U0131	-
Master cylinder solenoid (skid control ECU)*	U0100	-
	U0114	-
	U0123	-
	U0124	-
	U0126	-
	U0130	-
Blind spot monitor sensor LH	U0100	-
	U0125	-
	U0126	-
	U0129	-
	U0142	-
	U0163	-
Clearance warning ECU assembly	U0100	-
	U0101	-
	U0155	-
Driving support ECU assembly	U0100	-
	U0125	-
	U0126	-
	U0129	-
	U0235	-
	U023A	-
	U1002	-
	U1104	-
Parking assist ECU*	U0100	-
	U0114	-
	U0124	-
	U0126	-
	U0129	-
	U0130	-
	U0140	-
	U0233	-
	U1110	-
Multi-media module receiver assembly*	U0100	-
	U0126	-
	U0129	-
	U0130	-
	U0131	-
	U0132	-
	U0140	-
	U0155	-
	U0164	-
	U0182	-
	U0233	-
	U1110	-
Radio and display receiver assembly*	U0100	-
	U0126	-
	U0129	-
	U0130	-
	U0131	-
	U0132	-
	U0140	-
	U0155	-
	U0164	-
	U0182	-
	U0233	-
	U1110	-
Outer mirror control ECU assembly RH	U0142	○
Outer mirror control ECU assembly LH	U0142	○
Power back door unit assembly (power back door ECU)	U0101	○
	U0141	○
	U0142	○
	U0155	○
	U1117	○
Multiplex tilt and telescopic ECU	U0142	○
Multiplex tilt and telescopic ECU	U0208	○
Tire pressure warning ECU	U0129	-
Suspension control ECU	U0100	-
	U0101	-
	U0114	-
	U0122	-
	U0124	-
	U0126	-
	U0130	-
	U0140	-
Power steering ECU assembly	U0100	-
	U0126	-
	U0129	-
	U0130	-
Forward recognition camera	U0100	-
	U0101	-
	U0123	-
	U0126	-
	U0129	-
	U0142	-
	U0155	-
	U0182	-
	U0235	-
	U1104	-
Telematics transceiver	U0100	-
Central gateway ECU	-	-
Airbag sensor assembly	-	-
Spiral with sensor cable sub-assembly (steering angle sensor)	-	-
Power seat switch assembly	-	-
Bus buffer ECU	-	-
Inner rear view mirror assembly	-	-
Millimeter wave radar sensor assembly	-	-
No. 2 main body ECU	-	-

CAN BUS WAVEFORMS

Tech Tips

This waveform is measured between terminals CANH and GND, and terminals CANL and GND of the DLC3. (Use this as a reference for diagnosis of CAN communication lines.)
When malfunctions in multiple ECUs are suspected based on the CAN bus check and DTCs checked using the GTS, check the resistance of the CAN bus using an electrical tester first Click here. If no problems are found, check the following waveforms.
If a waveform is not similar to one of the following 3 patterns (Group 1), then an open in a CAN main bus line, an open in a CAN branch line, or a short between a CAN line (CANH or CANL) and ground is suspected (Group 2).
Wiggle the connector and wire harness to check if the waveform changes.

CAN bus waveforms (Group 1)


*a	1 V/DIV.
*b	50 μs./DIV.

Normal waveform


*a	1 V/DIV.
*b	50 μs./DIV.

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

Tech Tips

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


*a	1 V/DIV.
*b	50 μs./DIV.

Short between the CAN bus lines (CANH and CANL)

Tech Tips

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

CAN bus waveforms (reference) (Group 2)

Note

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


*a	1 V/DIV.
*b	50 μs./DIV.

Open in a CAN branch line (CANH)

Tech Tips

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


*a	1 V/DIV.
*b	50 μs./DIV.

Open in a CAN branch line (CANL)

Tech Tips

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


*a	1 V/DIV.
*b	50 μs./DIV.

Open in a CAN main bus line (CANH)

Tech Tips

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


*a	1 V/DIV.
*b	50 μs./DIV.

Short between a CAN bus line (CANH) and ground

Tech Tips

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


*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 electrical tester.

DATA SENDING/RECEIVING TABLE

Data sending/receiving table

Tech Tips

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

Data Content	Data Detected and Sent by	Data Received from (Can be Checked in Data List)	Data Received (Cannot be Checked in Data List)	Relevant Data List Item [Selected System]
Engine speed signal	ECM	Master cylinder solenoid (skid control ECU) Certification ECU (smart key ECU assembly) Combination meter assembly Suspension control ECU Power steering ECU assembly	Multi-media module receiver assembly Bus buffer ECU Airbag sensor assembly Air conditioning amplifier assembly Main body ECU (multiplex network body ECU) Steering control ECU 4WD control ECU DCM (telematics transceiver)	Engine Speed [Engine / Engine and ECT] Engine Revolutions [ABS/VSC/TRC] Engine Speed [Starting Control] Engine Rpm [Combination Meter] Engine Speed [AHC] Engine Revolution [PPS]
Engine coolant temperature signal	ECM	Air conditioning amplifier assembly Combination meter assembly	Multi-media module receiver assembly Outer mirror control ECU assembly LH Outer mirror control ECU assembly RH Certification ECU (smart key ECU assembly) 4WD control ECU	Coolant Temp [Engine / Engine and ECT] Engine Coolant Temp [Air Conditioner] Coolant Temperature [Combination Meter]
Shift position signal	ECM	Certification ECU (smart key ECU assembly) Multi-media module receiver assembly 4WD control ECU Clearance warning ECU assembly	Multi-media module receiver assembly DCM (telematics transceiver) Airbag sensor assembly Headlight leveling ECU assembly Main body ECU (multiplex network body ECU) Driving support ECU assembly Forward recognition camera Inner rear view mirror assembly Parking assist ECU Combination meter assembly Power seat switch assembly	Shift SW Status (R Range) [Engine] Shift SW Status (D Range) [Engine] Shift P Signal [Power Source Control] Reverse Signal [Navigation System] Shift SW Status (N Range) [Four Wheel Drive] Shift SW Status (P Range) [Four Wheel Drive] Parking Signal [Clearance Sonar] Reverse Signal [Clearance Sonar]
Stop light switch signal	Master cylinder solenoid (skid control ECU)	4WD control ECU	Multi-media module receiver assembly Bus buffer ECU Driving support ECU assembly Forward recognition camera Inner rear view mirror assembly DCM (telematics transceiver) Airbag sensor assembly Steering control ECU	Stop Light SW [ABS/VSC/TRC] Stop Light SW [Four Wheel Drive]
Stop light switch signal	ECM	Certification ECU (smart key ECU assembly)	Multi-media module receiver assembly Airbag sensor assembly	Stop Light Switch [Engine / Engine and ECT] Stop Light Switch1 [Power Source Control]
Vehicle speed signal	Master cylinder solenoid (skid control ECU)	Multi-media module receiver assembly ECM 4WD control ECU Combination meter assembly Steering control ECU Blind spot monitor sensor LH Power steering ECU assembly	Airbag sensor assembly Driving support ECU assembly Forward recognition camera Inner rear view mirror assembly Parking assist ECU Telematics transceiver	Vehicle Speed [ABS/VSC/TRC] Vehicle Speed [Engine and ECT] Vehicle Speed [Navigation System] Vehicle Speed [Four Wheel Drive] Vehicle Speed Meter [Combination Meter] Vehicle Speed [VGRS] Vehicle Speed [Blind Spot Monitor Master]
Vehicle speed signal	Combination meter assembly	Multiplex tilt and telescopic ECU	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) Power seat switch assembly DCM (telematics transceiver)	Vehicle Speed Meter [Combination Meter] Freeze Speed Info [Tilt&Telescopic]
Ambient temperature signal	Air conditioning amplifier assembly	ECM Combination meter assembly 4WD control ECU Steering control ECU	Multi-media module receiver assembly Bus buffer ECU Clearance warning ECU assembly Driving support ECU assembly Forward recognition camera Inner rear view mirror assembly DCM (telematics transceiver)	Ambient Temp Sensor [Air Conditioner] Ambient Temp for A/C [Engine] Ambient Temperature [Combination Meter] Ambient Temperature [Four Wheel Drive] Ambient Temperature [VGRS]
Steering angle sensor signal	Spiral with sensor cable sub-assembly (steering angle sensor)	Master cylinder solenoid (skid control ECU) Blind spot monitor sensor LH Driving support ECU assembly Steering control ECU Suspension control ECU Power steering ECU assembly	Multi-media module receiver assembly Airbag sensor assembly ECM Forward recognition camera Inner rear view mirror assembly Headlight leveling ECU assembly Parking assist ECU	Steering Angle Sensor [ABS/VSC/TRC] Steering Angle Value [ABS/VSC/TRC] Steering Angle [Blind Spot Monitor Master] Steering Angle [VGRS] Steering Angle [Radar Cruise2] Steering Angle [AHC] Steering Angle [PPS]
Door courtesy signal	Main body ECU (multiplex network body ECU)	-	Multi-media module receiver assembly Bus buffer ECU Certification ECU (smart key ECU assembly) Combination meter assembly Master cylinder solenoid (skid control ECU) Forward recognition camera Inner rear view mirror assembly Parking assist ECU DCM (telematics transceiver)	D Door Courtesy SW [Main Body] P-Door Courtesy SW [Main Body] RL Door Courtesy SW [Main Body] RR Door Courtesy SW [Main Body]

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

Tech Tips

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

Note

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

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

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

Engine
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Vehicle Speed	Vehicle speed/ Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Actual vehicle speed	The speed is indicated on speedometer.
Engine Speed	Engine speed/ Min.: 0 rpm, Max.: 16383 rpm	650 to 750 rpm: Idling	-
Coolant Temp	Engine coolant temperature/ Min.: -40°C, Max.: 140°C	80 to 100°C (176 to 212°F): After warming up	If the value is -40°C (-40°F): the sensor circuit is open. If the value is 140°C (284°F): the sensor circuit is shorted.
Shift SW Status (R Range)	Park/Neutral position switch status/ ON or OFF	ON: Shift lever in N OFF: Shift lever not in N	-
Shift SW Status (D Range)	Park/Neutral position switch status/ ON or OFF	ON: Shift lever in D OFF: Shift lever not in D	-
Stop Light Switch	Stop light switch/ ON or OFF	ON: Brake pedal depressed	-
Ambient Temp for A/C	Ambient temperature for A/C/ Min.: -40°C, Max.: 215°C	-	For use when engine stall, starting problems or rough idle is present.

Details of relevant Data List items (Selected system: Engine and ECT)

Tech Tips

Note

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

Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine and ECT / Data List.

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

Engine Speed
Tester Display	Measurement Item/Range	Normal Condition	Type	Cause of Out of Range
Engine Speed	Engine speed/ Min.: 0 rpm, Max.: 6000 rpm	Idling: 550 to 650 rpm (A/T) Idling: 500 to 600 rpm (M/T)	Sensor output (crankshaft position sensor)	Crankshaft position sensor Crankshaft position sensor circuit
Engine Speed	Diagnostic Note: When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 or varies greatly from the actual engine speed.

Vehicle Speed
Tester Display	Measurement Item/Range	Normal Condition	Type	Cause of Out of Range
Vehicle Speed	Vehicle speed/ Min.: 0 km/h, Max.: 255 km/h	Actual vehicle speed	Sensor output (speed sensor)	Speed sensor Speed sensor circuit

Coolant Temp
Tester Display	Measurement Item/Range	Normal Condition	Type	Cause of Out of Range
Coolant Temp	Engine coolant temperature/ Min.: -40°C, Max.: 140°C	After warming up engine: 70 to 90°C (158 to 194°F)	Sensor output (engine coolant temperature sensor)	Engine coolant temperature sensor Thermostat
	Symptoms when out of range: Difficulty starting when engine is cold, rough idle, black smoke, lack of power
	Diagnostic Note: If the value is -40°C (-40°F) or 140°C (284°F), the sensor circuit is open or shorted. After a long soak, the coolant temperature, intake air temperature and ambient temperature are approximately equal.

Stop Light Switch
Tester Display	Measurement Item/Range	Normal Condition	Type	Cause of Out of Range
Stop Light Switch	Stop light switch/ ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	Switch output (stop light switch)	OFF malfunction: Wire harness (stop light switch to ECM, stop light switch to +B) open or shorted to ground ON malfunction: Wire harness (stop light switch to ECM) shorted to +B Stop light switch
	Symptoms when out of range: Stop light switch malfunction DTC P0504 is stored
	Diagnostic Note: Stop light switch (STP) operation condition: ON: Light is on (Brake pedal is depressed) OFF: Light is off (Brake pedal is released)

Details of relevant Data List items (Selected system: Radar Cruise2)

Tech Tips

Note

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

Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Radar Cruise2 / Data List.

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

Radar Cruise2
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Steering Angle	Steering sensor signal / Min.: -3072.0 deg, Max.: 3070.5 deg	Increase: Turning left Decrease: Turning right	-

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

Tech Tips

Note

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

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

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

ABS/VSC/TRC
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Stop Light SW	Stop light switch/ ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	-
Steering Angle Sensor	Steering sensor/ Min.: -3276.8°, Max.: 3276.7°	Left turn: Increases Right turn: Decreases	-
Steering Angle Value	Steering angle value/ Min.: -3276.8°, Max.: 3276.7°	-	Changes in proportion with the amount of steering wheel rotation during steering operation.
Vehicle Speed	Maximum wheel speed sensor reading/ Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Actual vehicle speed	No large fluctuations when driving at a constant speed.
Engine Revolutions	Engine speed/ Min.: 0 rpm, Max.: 65535 rpm	Actual engine speed	-

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

Tech Tips

Note

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

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

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

Four Wheel Drive
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Shift SW Status (N Range)	Shift lever neutral condition/ ON or OFF	ON: Shift lever in N OFF: Shift lever not in N	-
Shift SW Status (P Range)	Shift lever P condition/ ON or OFF	ON: Shift lever in P OFF: Shift lever not in P	-
Stop Light SW	Stop light switch assembly condition/ ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	-
Vehicle Speed	Maximum wheel speed sensor reading/ Min.: 0.00 km/h (0.00 mph) Max.: 327.67 km/h (203.61 mph)	Vehicle stopped: 0.00 km/h (0.00 mph)	No large fluctuations when driving at a constant speed.
Ambient Temperature	Ambient Temperature/ Min.: -56°C (-69°F) Max.: 199°C (390°F)	Displays ambient temperature	-

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

Note

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

Tech Tips

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

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

VGRS
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Steering Angle	Steering angle/ Min.: -1638.40 deg Max.: 1638.35 deg	-600 to 600 deg	-
Vehicle Speed	Vehicle speed/ Min.: 0.00 km/h (0 mph) Max.: 327.67 km/h (203 mph)	Actual vehicle speed	-
Ambient Temperature	Ambient temperature/ Min.: -40°C (-40°F) Max.: 50°C (122°F)	Same as ambient temperature	-

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

Note

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

Tech Tips

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

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

Clearance Sonar
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Parking Signal	Parking signal / OFF or ON	OFF: Shift lever not in P ON: Shift lever in P	-
Reverse Signal	Reverse signal / OFF or ON	OFF: Shift lever not in R ON: Shift lever in R	-

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

Note

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

Tech Tips

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

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

Blind Spot Monitor Master
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Vehicle Speed	Vehicle speed signal / Min.: -327.68 km/h (-204 mph), Max.: 327.67 km/h (204 mph)	Vehicle stopped: 0 km/h (0 mph)	-
Steering Angle	Steering angle sensor / Min.: -3072 deg, Max.: 3070.5 deg	Left turn: Increases Right turn: Decreases	-

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

Note

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

Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.

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

Combination Meter
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Vehicle Speed Meter	Vehicle speed / Min.: 0 (0), Max.: 255 (158)	Almost same as actual vehicle speed (when driving)	Unit: km/h (mph)
Engine Rpm	Engine speed / Min.: 0, Max.: 12750 rpm	Idling: 700 to 800	Unit: rpm
Coolant Temperature	Engine coolant temperature / Min.: -40 (-40), Max.: 140 (284) F	After warming up: 80 to 105 (176 to 221)	Unit: °C (°F). If the value is -40 (-40): The sensor circuit is open. If the value is 140 (284): The sensor circuit is shorted.
Ambient Temperature	Outside temperature / Min: -40, Max: 87.5°C	Outside temperature	-

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

Note

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

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

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

Air Conditioner
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Ambient Temp Sensor	Cooler thermistor (ambient temperature sensor) / Min.: -23.3°C (-9.94°F), Max.: 65.95°C (150.71°F)	Actual ambient temperature displayed	Thermistor assembly (ambient temperature sensor) system malfunction: Open in the circuit: -23.3°C (-9.94°F) Short in the circuit: 65.95°C (150.71°F)
Engine Coolant Temp	Engine coolant temperature / Min.: 1.3°C (34.34°F), Max.: 90.55°C (194.99°F)	Actual engine coolant temperature displayed while engine warmed up	SFI system malfunction CAN communication system malfunction

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

Note

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

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

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

Tilt & Telescopic
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Freeze Speed Info	Vehicle speed data/ Min.: 0 km/h (0 mph) Max.: 255 km/h (158 mph)	Actual vehicle speed	-

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

Tech Tips

Note

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

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

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

Main Body
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
D Door Courtesy SW	Driver side door courtesy light switch signal / ON or OFF	ON: Driver side door opened OFF: Driver side door closed	-
P-Door Courtesy SW	Front passenger side door courtesy light switch signal / ON or OFF	ON: Front passenger side door opened OFF: Front passenger side door closed	-
RL Door Courtesy SW	Rear LH side door courtesy light switch signal / ON or OFF	ON: Rear LH side door opened OFF: Rear LH side door closed	-
RR Door Courtesy SW	Rear RH side door courtesy light switch signal / ON or OFF	ON: Rear RH side door opened OFF: Rear RH side door closed	-

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

Tech Tips

Note

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

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

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

Navigation System
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Reverse Signal	Reverse signal / ON or OFF	ON: Shift lever in R OFF: Shift lever in any position other than R	-
Vehicle Speed	Maximum wheel speed sensor reading / Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations

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

Tech Tips

Note

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

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

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

Power Source Control
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Shift P Signal	Shift position P/ON or OFF	ON: Shift lever in P OFF: Shift lever not in P	Use this item to determine if the shift position switch is malfunctioning. The engine cannot be started when this item is OFF.
Stop Light Switch1	State of brake pedal/ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	Use this item to determine whether the stop light switch is malfunctioning. The engine cannot be started when this item is OFF. When this item is malfunctioning, the engine can be started by pressing and holding the ignition switch for a certain period of time.

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

Tech Tips

Note

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

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

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

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

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

Tech Tips

Note

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

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

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

AHC
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Meter Vehicle Velocity	Vehicle speed from meter/ Min.: 0.00 km/h (0.00 mph) Max.: 300.00 km/h (186.41 mph)	0 km/h (0 mph)	The vehicle is stopped.
Meter Vehicle Velocity		No large fluctuation	The vehicle is driven at a constant speed.
Engine Revolution	Engine speed/ Min.: 0 rpm Max.: 12800 rpm	No large fluctuation	The engine is running at a constant speed.
Steering Angle	Steering angle/ Min.: -2048.0 deg Max.: 2047.0 deg	Left turn: Increases Right turn: Decreases	The engine is running and the steering wheel is being turned.

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

Tech Tips

Note

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

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

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

PPS
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Meter Vehicle Velocity	Vehicle speed from meter/ Min.: 0.00 km/h (0.00 mph) Max.: 300.00 km/h (186.41 mph)	0 km/h (0 mph)	The vehicle is stopped.
Meter Vehicle Velocity		No large fluctuation	The vehicle is driven at a constant speed.
Engine Revolution	Engine speed/ Min.: 0 rpm Max.: 12800 rpm	No large fluctuation	The engine is running at a constant speed.
Steering Angle	Steering angle/ Min.: -2048.0 deg Max.: 2047.0 deg	Left turn: Increases Right turn: Decreases	The engine is running and the steering wheel is being turned.