CAN COMMUNICATION SYSTEM(for LHD without Central Gateway ECU) DIAGNOSIS SYSTEM

ECUS OR SENSORS WHICH COMMUNICATE THROUGH CAN COMMUNICATION SYSTEM
1. V Bus
  1. ECM
  2. DLC3
  3. Power steering ECU assembly
  4. Air conditioning amplifier assembly
  5. Airbag sensor assembly
  6. Spiral with sensor cable sub-assembly (steering angle sensor)
  7. Radio and display receiver assembly*1
  8. 4WD ECU assembly*2
  9. Brake actuator assembly (skid control ECU)
  10. Main body ECU (multiplex network body ECU)
  11. Engine stop and start ECU*3
  12. Combination meter assembly
    - *1: w/ Audio and Visual System (for Radio and Display Type)
    - *2: for 4WD/AWD
    - *3: w/ Stop and Start System

CAN BUS CHECK

Tip:

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

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

Note:

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

Tip:

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

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

Tip:

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

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

HOW TO INTERPRET CAN BUS CHECK SCREEN

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

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

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

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

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

Tip:

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

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

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

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

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

Tip:

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

*a	Not displayed or background color changes to red

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

Example: Open in both CAN branch wires of ECU C on the V bus

Tip:

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

*a	Background color changes to yellow or red

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

Example: Open in both CAN branch wires of ECU G on the sub bus

Tip:

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

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

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

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

Tip:

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 wires are open, ECUs that are located farther away from the gateway function equipped ECU than the open part will be displayed as a communication stop on the CAN Bus Check screen.

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

*a	V Bus	*b	Sub Bus
*c	Terminating Resistor	*d	Location of malfunction
*e	Not displayed or background color is red	*f	CAN Bus Check screen
*g	Gateway function equipped ECU	-	-

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

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

Table 3. Details of Malfunction
Short between CAN wires (CANH and CANL)
Short between a CAN wire (CANH or CANL) and +B
Short between a CAN wire (CANH or CANL) and ground
Open in a CAN main wire

Tip:

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

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

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

Tip:

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.

If multiple ECUs store a communication DTC for a particular ECU, a communication stop of the ECU is suspected.

*a	Items to be checked	-	-

Note:

This DTC table is from another model, and is only used here to show an example of DTCs that are output when there is an open in a CAN branch wire 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.)

Tip:

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.

If almost all of the communication DTCs of an ECU are stored, a communication stop of the ECU is suspected.

*a	Items to be checked	-	-

Note:

This DTC table is from another model, and is only used here to show an example of DTCs that are output when there is an open in a CAN branch wire for the main body ECU. This table does not show DTCs applicable to this vehicle.

Tip:

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.

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

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

Note:

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

Tip:

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

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

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.

Tip:

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


ECU/Sensor Name	GTS Display	Installed on
ECM	ECM (Engine)	All vehicles
Power steering ECU assembly	Power Steering (EPS)	All vehicles
Air conditioning amplifier assembly	Air Conditioning Amplifier	All vehicles
Airbag sensor assembly	Airbag	All vehicles
Spiral with sensor cable sub-assembly (steering angle sensor)	Spiral cable (Steering Angle Sensor)	All vehicles
4WD ECU assembly	Four Wheel Drive Control	Vehicles with 4WD/AWD
Brake actuator assembly (skid control ECU)	Skid Control (ABS/VSC/TRAC)	All vehicles
Main body ECU (multiplex network body ECU)	Main Body	All vehicles
Engine stop and start ECU	Stop and Go/Start	Vehicles with a stop and start system
Combination meter assembly	Combination Meter	All vehicles
Radio and display receiver assembly	Display and Navigation (AVN1)	Vehicles with an audio and visual system (for radio and display type)

DTC TABLE BY ECU

Tip:

In the CAN communication system, the CAN communication DTCs of each ECU can be displayed using the GTS.
If CAN communication system DTCs are output, the trouble cannot be determined solely from 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

Tip:

DTC communication uses the CAN communication system.

GTS Display "Engine" (for 2AD-FTV, 2AD-FHV, 2AD-CCo, 2AD-DPF)

Powertrain > Engine > Trouble Codes


DTC No.	Detection Item	DTC Detection Condition	DTC Detection Precondition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U1103	Manufacture Control U11 Lost Communication	The following condition occurs 10 times consecutively: The ECM is unable to receive certain data from the engine stop and start ECU for 2.1 seconds or more.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The ECM power supply voltage is 10.5 V or higher.	Turn the ignition switch to ON and wait at least 60 seconds.	-	The DTC remains stored until it is cleared using the GTS.

GTS Display "Engine and ECT" (for 2AR-FE, 3ZR-FAE, 3ZR-FE, 2WW)

Powertrain > Engine and ECT > Trouble Codes


DTC No.	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 following condition occurs 10 times consecutively: The ECM is unable to receive certain data from the brake actuator assembly (skid control ECU) for 2.1 seconds or more.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The ECM power supply voltage is 10.5 V or higher.	Turn the ignition switch to ON and wait at least 60 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U1103	Manufacture Control U11 Lost Communication	The following condition occurs 10 times consecutively: The ECM is unable to receive certain data from the engine stop and start ECU for 2.1 seconds or more.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The ECM power supply voltage is 10.5 V or higher.	Turn the ignition switch to ON and wait at least 60 seconds.	-	The DTC remains stored until it is cleared using the GTS.

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

Powertrain > Cruise Control > Trouble Codes


DTC No.	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 brake actuator assembly (skid control ECU) for 2.6 seconds or more.	Both conditions are met: 1 second or more elapses after turning the ignition switch to ON. The ECM power supply voltage is 10.5 V or higher.	Turn the ignition switch to ON and wait at least 2.6 seconds.	Displays messages on the multi-information display.	The DTC remains stored until it is cleared using the GTS.

BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) / GTS Display "ABS/VSC/TRC"

Tip:

DTC communication uses the CAN communication system.

Chassis > ABS/VSC/TRC > Trouble Codes


DTC No.	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 brake actuator assembly (skid control ECU) from the spiral with sensor cable sub-assembly (steering angle sensor) is invalid for 1 second or more. The following condition occurs 10 times consecutively within 60 seconds: The response sent to the brake actuator assembly (skid control ECU) from the spiral with sensor cable sub-assembly (steering angle sensor) is invalid at least once within 5 seconds. The brake actuator assembly (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 brake actuator assembly (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.
U0100	Lost Communication With ECM/PCM "A"	The brake actuator assembly (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 brake actuator assembly (skid control ECU) power supply voltage is between 10 and 17.4 V.	Drive the vehicle for 3 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.
U0124	Lost Communication With Lateral Acceleration Sensor Module	Either condition is met: The brake actuator assembly (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 brake actuator assembly (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 brake actuator assembly (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 brake actuator assembly (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 brake actuator assembly (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 brake actuator assembly (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.

AIR CONDITIONING AMPLIFIER ASSEMBLY / GTS Display "Air Conditioner"

Tip:

DTC communication uses the CAN communication system.

Body Electrical > Air Conditioner > Trouble Codes


DTC No.	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 is 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 is 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 is 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 is 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.

MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) / GTS Display "Main Body"

Tip:

DTC communication uses the CAN communication system.

Body Electrical > Main Body > Trouble Codes


DTC No.	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.
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.	-	The DTC remains stored until it is cleared using the GTS.
U0164	Lost Communication with HVAC Control Module	The main body ECU (multiplex network body ECU) is unable to receive certain data from the air conditioning amplifier 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.

POWER STEERING ECU ASSEMBLY / GTS Display "EMPS"

Tip:

DTC communication uses the CAN communication system.

Chassis > EMPS > Trouble Codes


DTC No.	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 5 seconds or more.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The power steering ECU assembly power supply voltage is 9.5 V or higher.	Drive the vehicle for 6 seconds at a speed of 20 km/h (12 mph) or more.	-	The DTC is stored only while the malfunction is present.
U0129	Lost Communication with Brake System Control Module	The power steering ECU assembly is unable to receive certain data from the brake actuator assembly (skid control ECU) for 2.3 seconds or more.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The power steering ECU assembly power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 4.3 seconds.	The EPS warning light illuminates.	The DTC is stored only while the malfunction is present.

COMBINATION METER ASSEMBLY / GTS Display "Combination Meter"

Tip:

DTC communication uses the CAN communication system.

Body Electrical > Combination Meter > Trouble Codes


DTC No.	Detection Item	DTC Detection Condition	DTC Check Procedure	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The combination meter assembly is unable to receive certain data from the ECM for 2 seconds or more.	Both conditions are met: The ignition switch is 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 2 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 brake actuator assembly (skid control ECU) for 2 seconds or more. The combination meter assembly is unable to receive certain data from the brake actuator assembly (skid control ECU) for 3 seconds or more.	Both conditions are met: The ignition switch is 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.
U0131	Lost Communication with Power Steering Control Module	The combination meter assembly is unable to receive certain data from the power steering ECU assembly for 3 seconds or more.	Both conditions are met: The ignition switch is 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 EPS warning light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	The combination meter 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: The ignition switch is 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.
U0151	Lost Communication with Restraints Control Module	The combination meter assembly is unable to receive certain data from the airbag sensor assembly for 10 seconds or more.	Both conditions are met: The ignition switch is 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 SRS warning light illuminates.	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 radio and display receiver assembly for 3 seconds or more.	Both conditions are met: The ignition switch is 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.

RADIO AND DISPLAY RECEIVER ASSEMBLY (w/ Audio and Visual System [for Radio and Display Type]) / GTS Display "Navigation System"

Tip:

DTC communication uses the CAN communication system.

Body Electrical > Navigation System > Trouble Codes


DTC No.	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.	-	Turn the ignition switch to ON and wait at least 1 second.	-	The DTC remains stored until it is cleared using the GTS.
U0100	Engine ECU Communication	One of the following conditions is met: The radio and display receiver assembly is unable to receive certain data from the ECM for 1.24 seconds or more. The radio and display receiver assembly is unable to receive certain data from the ECM for 2 seconds or more. The radio and display receiver assembly is unable to receive certain data from the ECM for 2.5 seconds or more. 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.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The radio and display receiver assembly power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 11 seconds.	-	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 10.8 seconds or more.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The radio and display receiver assembly power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 11.8 seconds.	-	The DTC remains stored until it is cleared using the GTS.
U0129	VSC(ECB*)ECU Communication	Either condition is met: The radio and display receiver assembly is unable to receive certain data from the brake actuator assembly (skid control ECU) for 1 second or more. The radio and display receiver assembly is unable to receive certain data from the brake actuator assembly (skid control ECU) for 4 second or more.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The radio and display receiver 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.
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.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The radio and display receiver assembly power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 2 seconds.	-	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.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The radio and display receiver assembly power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 4 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.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The radio and display receiver assembly power supply voltage is 9.5 V or higher.	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	One of the following conditions is met: The radio and display receiver assembly is unable to receive certain data from the air conditioning amplifier assembly for 3 seconds or more. The radio and display receiver assembly is unable to receive certain data from the air conditioning amplifier assembly for 6 seconds or more. The radio and display receiver assembly is unable to receive certain data from the air conditioning amplifier assembly for 15 seconds or more.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The radio and display receiver assembly power supply voltage is 9.5 V or higher.	Turn the ignition switch to ON and wait at least 16 seconds.	-	The DTC remains stored until it is cleared using the GTS.

ECB*: Electronically Controlled Brake System

4WD ECU ASSEMBLY (for 4WD/AWD) / GTS Display "Four Wheel Drive"

Tip:

DTC communication uses the CAN communication system.

Chassis > Four Wheel Drive > Trouble Codes


DTC No.	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 4WD ECU assembly is unable to send or receive data 10 times consecutively.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The 4WD ECU assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 60 seconds.	The "Check 4WD System" message is displayed.	The DTC remains stored until it is cleared using the GTS.
U0100	Lost Communication With ECM/PCM "A"	Either condition is met: The 4WD ECU assembly is unable to receive certain data from the ECM for 2 seconds or more. The 4WD ECU assembly is unable to receive certain data from the ECM for 3.5 seconds or more.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The 4WD ECU assembly power supply voltage is 10 V or higher.	Drive the vehicle for 4.5 seconds or more at a speed of 60 km/h (37 mph) or more.	The "Check 4WD System" message is displayed.	The DTC remains stored until it is cleared using the GTS.
U0126	Lost Communication With Steering Angle Sensor Module	The 4WD ECU assembly is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 1 second or more.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The 4WD ECU assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 2 seconds.	The "Check 4WD System" message is displayed.	The DTC remains stored until it is cleared using the GTS.
U0129	Lost Communication With Brake System Control Module	Either condition is met: The 4WD ECU assembly is unable to receive certain data from the brake actuator assembly (skid control ECU) for 3 seconds or more. The 4WD ECU assembly is unable to receive certain data from the brake actuator assembly (skid control ECU) for 8 seconds or more.	Both conditions are met: 2 seconds or more elapse after turning the ignition switch to ON. The 4WD ECU assembly power supply voltage is 10 V or higher.	Turn the ignition switch to ON and wait at least 10 seconds.	The "Check 4WD System" message is displayed.	The DTC remains stored until it is cleared using the GTS.

ENGINE STOP AND START ECU (w/ Stop and Start System) / GTS Display "Stop and Start"

Tip:

DTC communication uses the CAN communication system.

Powertrain > Stop and Start > Trouble Codes


DTC No.	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 engine stop and start ECU is unable to receive certain data from the ECM for 0.76 seconds or more.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The engine stop and start ECU power supply voltage is 10.5 V or higher	Turn the ignition switch to ON and wait at least 1.76 seconds.	Stop and start indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0121	Lost Communication with Brake System Control Module	The engine stop and start ECU is unable to receive certain data from the brake actuator assembly (skid control ECU) for 2.22 seconds or more.	Both conditions are met: 2.1 seconds or more elapse after turning the ignition switch to ON. The engine stop and start ECU power supply voltage is 10.5 V or higher	Turn the ignition switch to ON and wait at least 4.32 seconds.	Stop and start indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	The engine stop and start ECU is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 0.72 seconds or more.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The engine stop and start ECU power supply voltage is 10.5 V or higher	Turn the ignition switch to ON and wait at least 1.72 seconds.	Stop and start indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0131	Lost Communication with Electric Power Steering ECU	The engine stop and start ECU is unable to receive certain data from the power steering ECU assembly for 0.8 seconds or more.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The engine stop and start ECU power supply voltage is 10.5 V or higher	Turn the ignition switch to ON and wait at least 1.8 seconds.	Stop and start indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	The engine stop and start ECU is unable to receive certain data from the main body ECU (multiplex network body ECU) for 3.6 seconds or more.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The engine stop and start ECU power supply voltage is 10.5 V or higher	Turn the ignition switch to ON and wait at least 4.6 seconds.	Stop and start indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0151	Lost Communication with Restraints Control Module	The engine stop and start ECU is unable to receive certain data from the airbag sensor assembly for 10.6 seconds or more.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The engine stop and start ECU power supply voltage is 10.5 V or higher	Turn the ignition switch to ON and wait at least 11.6 seconds.	Stop and start indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	The engine stop and start ECU is unable to receive certain data from the combination meter assembly for 10.6 seconds or more.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The engine stop and start ECU power supply voltage is 10.5 V or higher	Turn the ignition switch to ON and wait at least 11.6 seconds.	Stop and start indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.
U0164	Lost Communication with HVAC Control Module	The engine stop and start ECU is unable to receive certain data from the air conditioning amplifier assembly for 10.6 seconds or more.	Both conditions are met: 1 second or more elapse after turning the ignition switch to ON. The engine stop and start ECU power supply voltage is 10.5 V or higher	Turn the ignition switch to ON and wait at least 11.6 seconds.	Stop and start indicator light illuminates.	The DTC remains stored until it is cleared using the GTS.

AIRBAG SENSOR ASSEMBLY

Tip:
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)

Tip:
The spiral with sensor cable sub-assembly (steering angle sensor) is connected to the CAN communication system but CAN communication DTCs are not stored.
Regarding the past communication error of ECUs and sensors connected to the V bus (in this case, normal was displayed when performing the CAN bus check, but communication DTCs are output), the probable CAN branch that had a malfunction can be determined based on the following DTC combination table.

DTC COMBINATION TABLE (OPEN OR SHORT IN V BUS, 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.

Tip:

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 7 to 9) first.
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.
X: DTC is likely output.
▲: DTC is unlikely output.
-: DTC is not output.
*: DTC U0073 may be stored when communication is lost.


Output from	Output DTC	Trouble Mode (Open in one CAN branch wires)
		V Bus
		Center Airbag Sensor Communication Stop Mode Click here	Air Conditioning Amplifier Communication Stop Mode Click here	Skid Control ECU Communication Stop Mode Click here	Main Body ECU Communication Stop Mode Click here
Air Conditioning Amplifier Assembly	U0100	▲	X	▲	▲
	U0131	▲	X	▲	▲
	U0142	▲	X	▲	X
	U0155	▲	X	▲	▲
Main Body ECU (Multiplex Network Body ECU)	U0100	▲	▲	▲	X
	U0101	▲	▲	▲	X
	U0151	X	▲	▲	X
	U0155	▲	▲	▲	X
	U0164	▲	X	▲	X
ECM	U0122	▲	▲	▲	▲
	U0129	▲	▲	▲	▲
	U1103	▲	▲	▲	▲
Power Steering ECU Assembly	U0100	▲	▲	▲	▲
Power Steering ECU Assembly	U0129	▲	▲	▲	▲
4WD ECU Assembly*	U0100	▲	▲	▲	▲
	U0126	▲	▲	▲	▲
	U0129	▲	▲	▲	▲
Combination Meter Assembly	U0100	▲	▲	▲	▲
	U0129	▲	▲	X	▲
	U0131	▲	▲	▲	▲
	U0142	▲	▲	▲	X
	U0151	X	▲	▲	▲
	U0163	▲	▲	▲	▲
Brake Actuator Assembly (Skid Control ECU)*	U0100	▲	▲	X	▲
	U0124	X	▲	X	▲
	U0126	▲	▲	X	▲
Radio and Display Receiver Assembly*	U0100	▲	▲	▲	▲
	U0126	▲	▲	▲	▲
	U0129	▲	▲	X	▲
	U0131	▲	▲	▲	▲
	U0140	▲	▲	▲	X
	U0155	▲	▲	▲	▲
	U0164	▲	X	▲	▲
Engine Stop and Start ECU	U0100	▲	▲	▲	▲
	U0121	▲	▲	X	▲
	U0126	▲	▲	▲	▲
	U0131	▲	▲	▲	▲
	U0140	▲	▲	▲	X
	U0151	X	▲	▲	▲
	U0155	▲	▲	▲	▲
	U0164	▲	X	▲	▲
Airbag Sensor Assembly	-	-	-	-	-
Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)	-	-	-	-	-


Output from	Output DTC	Trouble Mode (Open in one CAN branch wires)
		V Bus
		Engine Stop and Start ECU Communication Stop Mode Click here	Steering Angle Sensor Communication Stop Mode Click here	Audio Receiver Assembly Communication Stop Mode Click here
Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
	U0131	▲	▲	▲
	U0142	▲	▲	▲
	U0155	▲	▲	▲
Main Body ECU (Multiplex Network Body ECU)	U0100	▲	▲	▲
	U0101	▲	▲	▲
	U0151	▲	▲	▲
	U0155	▲	▲	▲
	U0164	▲	▲	▲
ECM	U0122	▲	▲	▲
	U0129	▲	▲	▲
	U1103	X	▲	▲
Power Steering ECU Assembly	U0100	▲	▲	▲
Power Steering ECU Assembly	U0129	▲	▲	▲
4WD ECU Assembly*	U0100	▲	▲	▲
	U0126	▲	X	▲
	U0129	▲	▲	▲
Combination Meter Assembly	U0100	▲	▲	▲
	U0129	▲	▲	▲
	U0131	▲	▲	▲
	U0142	▲	▲	▲
	U0151	▲	▲	▲
	U0163	▲	▲	▲
Brake Actuator Assembly (Skid Control ECU)*	U0100	▲	▲	▲
	U0124	▲	▲	▲
	U0126	▲	X	▲
Radio and Display Receiver Assembly*	U0100	▲	▲	X
	U0126	▲	X	X
	U0129	▲	▲	X
	U0131	▲	▲	X
	U0140	▲	▲	X
	U0155	▲	▲	X
	U0164	▲	▲	X
Engine Stop and Start ECU	U0100	X	▲	▲
	U0121	X	▲	▲
	U0126	X	X	▲
	U0131	X	▲	▲
	U0140	X	▲	▲
	U0151	X	▲	▲
	U0155	X	▲	▲
	U0164	X	▲	▲
Airbag Sensor Assembly	-	-	-	-
Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)	-	-	-	-


Output from	Output DTC	Trouble Mode (Open in one CAN branch wires)
		V Bus
		4WD Control ECU Communication Stop Mode Click here	Power Steering ECU Communication Stop Mode Click here	DLC3
Air Conditioning Amplifier Assembly	U0100	▲	▲	▲
	U0131	▲	X	▲
	U0142	▲	▲	▲
	U0155	▲	▲	▲
Main Body ECU (Multiplex Network Body ECU)	U0100	▲	▲	▲
	U0101	▲	▲	▲
	U0151	▲	▲	▲
	U0155	▲	▲	▲
	U0164	▲	▲	▲
ECM	U0122	▲	▲	▲
	U0129	▲	▲	▲
	U1103	▲	▲	▲
Power Steering ECU Assembly	U0100	▲	X	▲
Power Steering ECU Assembly	U0129	▲	X	▲
4WD ECU Assembly*	U0100	X	▲	▲
	U0126	X	▲	▲
	U0129	X	▲	▲
Combination Meter Assembly	U0100	▲	▲	▲
	U0129	▲	▲	▲
	U0131	▲	X	▲
	U0142	▲	▲	▲
	U0151	▲	▲	▲
	U0163	▲	▲	▲
Brake Actuator Assembly (Skid Control ECU)*	U0100	▲	▲	▲
	U0124	▲	▲	▲
	U0126	▲	▲	▲
Radio and Display Receiver Assembly*	U0100	▲	▲	▲
	U0126	▲	▲	▲
	U0129	▲	▲	▲
	U0131	▲	X	▲
	U0140	▲	▲	▲
	U0155	▲	▲	▲
	U0164	▲	▲	▲
Engine Stop and Start ECU	U0100	▲	▲	▲
	U0121	▲	▲	▲
	U0126	▲	▲	▲
	U0131	▲	X	▲
	U0140	▲	▲	▲
	U0151	▲	▲	▲
	U0155	▲	▲	▲
	U0164	▲	▲	▲
Airbag Sensor Assembly	-	-	-	-
Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)	-	-	-	-


Output from	Output DTC	Trouble Mode (Open in both CAN branch wires)
		V Bus
		Center Airbag Sensor Communication Stop Mode Click here	Air Conditioning Amplifier Communication Stop Mode Click here	Skid Control ECU Communication Stop Mode Click here	Main Body ECU Communication Stop Mode Click here
Air Conditioning Amplifier Assembly	U0100	-	○	-	-
	U0131	-	○	-	-
	U0142	-	○	-	○
	U0155	-	○	-	-
Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-	○
	U0101	-	-	-	○
	U0151	○	-	-	○
	U0155	-	-	-	○
	U0164	-	○	-	○
ECM	U0122	-	-	-	-
	U0129	-	-	-	-
	U1103	-	-	-	-
Power Steering ECU Assembly	U0100	-	-	-	-
Power Steering ECU Assembly	U0129	-	-	-	-
4WD ECU Assembly*	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	-	-
Combination Meter Assembly	U0100	-	-	-	-
	U0129	-	-	○	-
	U0131	-	-	-	-
	U0142	-	-	-	○
	U0151	○	-	-	-
	U0163	-	-	-	-
Brake Actuator Assembly (Skid Control ECU)*	U0100	-	-	○	-
	U0124	○	-	○	-
	U0126	-	-	○	-
Radio and Display Receiver Assembly*	U0100	-	-	-	-
	U0126	-	-	-	-
	U0129	-	-	○	-
	U0131	-	-	-	-
	U0140	-	-	-	○
	U0155	-	-	-	-
	U0164	-	○	-	-
Engine Stop and Start ECU	U0100	-	-	-	-
	U0121	-	-	○	-
	U0126	-	-	-	-
	U0131	-	-	-	-
	U0140	-	-	-	○
	U0151	○	-	-	-
	U0155	-	-	-	-
	U0164	-	○	-	-
Airbag Sensor Assembly	-	-	-	-	-
Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)	-	-	-	-	-


Output from	Output DTC	Trouble Mode (Open in both CAN branch wires)
		V Bus
		Engine Stop and Start ECU Communication Stop Mode Click here	Steering Angle Sensor Communication Stop Mode Click here	Audio Receiver Assembly Communication Stop Mode Click here
Air Conditioning Amplifier Assembly	U0100	-	-	-
	U0131	-	-	-
	U0142	-	-	-
	U0155	-	-	-
Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-
	U0101	-	-	-
	U0151	-	-	-
	U0155	-	-	-
	U0164	-	-	-
ECM	U0122	-	-	-
	U0129	-	-	-
	U1103	○	-	-
Power Steering ECU Assembly	U0100	-	-	-
Power Steering ECU Assembly	U0129	-	-	-
4WD ECU Assembly*	U0100	-	-	-
	U0126	-	○	-
	U0129	-	-	-
Combination Meter Assembly	U0100	-	-	-
	U0129	-	-	-
	U0131	-	-	-
	U0142	-	-	-
	U0151	-	-	-
	U0163	-	-	-
Brake Actuator Assembly (Skid Control ECU)*	U0100	-	-	-
	U0124	-	-	-
	U0126	-	○	-
Radio and Display Receiver Assembly*	U0100	-	-	○
	U0126	-	○	○
	U0129	-	-	○
	U0131	-	-	○
	U0140	-	-	○
	U0155	-	-	○
	U0164	-	-	○
Engine Stop and Start ECU	U0100	○	-	-
	U0121	○	-	-
	U0126	○	○	-
	U0131	○	-	-
	U0140	○	-	-
	U0151	○	-	-
	U0155	○	-	-
	U0164	○	-	-
Airbag Sensor Assembly	-	-	-	-
Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)	-	-	-	-


Output from	Output DTC	Trouble Mode (Open in both CAN branch wires)
		V Bus
		4WD Control ECU Communication Stop Mode Click here	Power Steering ECU Communication Stop Mode Click here	DLC3
Air Conditioning Amplifier Assembly	U0100	-	-	-
	U0131	-	○	-
	U0142	-	-	-
	U0155	-	-	-
Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-
	U0101	-	-	-
	U0151	-	-	-
	U0155	-	-	-
	U0164	-	-	-
ECM	U0122	-	-	-
	U0129	-	-	-
	U1103	-	-	-
Power Steering ECU Assembly	U0100	-	○	-
Power Steering ECU Assembly	U0129	-	○	-
4WD ECU Assembly*	U0100	○	-	-
	U0126	○	-	-
	U0129	○	-	-
Combination Meter Assembly	U0100	-	-	-
	U0129	-	-	-
	U0131	-	○	-
	U0142	-	-	-
	U0151	-	-	-
	U0163	-	-	-
Brake Actuator Assembly (Skid Control ECU)*	U0100	-	-	-
	U0124	-	-	-
	U0126	-	-	-
Radio and Display Receiver Assembly*	U0100	-	-	-
	U0126	-	-	-
	U0129	-	-	-
	U0131	-	○	-
	U0140	-	-	-
	U0155	-	-	-
	U0164	-	-	-
Engine Stop and Start ECU	U0100	-	-	-
	U0121	-	-	-
	U0126	-	-	-
	U0131	-	○	-
	U0140	-	-	-
	U0151	-	-	-
	U0155	-	-	-
	U0164	-	-	-
Airbag Sensor Assembly	-	-	-	-
Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)	-	-	-	-


Output from	Output DTC	Trouble Mode (Open in one CAN main wires)
		V Bus
		ECM Communication Stop Mode Click here	No. 6 CAN Junction Connector - No. 7 CAN Junction Connector	Combination Meter ECU Communication Stop Mode Click here
Air Conditioning Amplifier Assembly	U0100	X	▲	▲
	U0131	▲	X	▲
	U0142	▲	▲	▲
	U0155	▲	X	X
Main Body ECU (Multiplex Network Body ECU)	U0100	X	▲	▲
	U0101	X	▲	▲
	U0151	▲	▲	▲
	U0155	▲	X	X
	U0164	▲	▲	▲
ECM	U0122	X	▲	▲
	U0129	X	▲	▲
	U1103	X	▲	▲
Power Steering ECU Assembly	U0100	X	▲	▲
Power Steering ECU Assembly	U0129	▲	▲	▲
4WD ECU Assembly*	U0100	X	X	▲
	U0126	▲	▲	▲
	U0129	▲	X	▲
Combination Meter Assembly	U0100	X	X	X
	U0129	▲	X	X
	U0131	▲	X	X
	U0142	▲	X	X
	U0151	▲	X	X
	U0163	▲	▲	X
Brake Actuator Assembly (Skid Control ECU)*	U0100	X	▲	▲
	U0124	▲	▲	▲
	U0126	▲	X	▲
Radio and Display Receiver Assembly*	U0100	X	▲	▲
	U0126	▲	▲	▲
	U0129	▲	X	▲
	U0131	▲	X	▲
	U0140	▲	X	▲
	U0155	▲	▲	X
	U0164	▲	X	▲
Engine Stop and Start ECU	U0100	X	X	▲
	U0121	▲	X	▲
	U0126	▲	▲	▲
	U0131	▲	X	▲
	U0140	▲	X	▲
	U0151	▲	X	▲
	U0155	▲	▲	X
	U0164	▲	X	▲
Airbag Sensor Assembly	-	-	-	-
Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)	-	-	-	-


Output from	Output DTC	Trouble Mode (Open in both CAN main wires)
		V Bus
		ECM Communication Stop Mode Click here	No. 6 CAN Junction Connector - No. 7 CAN Junction Connector	Combination Meter ECU Communication Stop Mode Click here
Air Conditioning Amplifier Assembly	U0100	○	-	-
	U0131	-	○	-
	U0142	-	-	-
	U0155	-	○	○
Main Body ECU (Multiplex Network Body ECU)	U0100	○	-	-
	U0101	○	-	-
	U0151	-	-	-
	U0155	-	○	○
	U0164	-	-	-
ECM	U0122	○	-	-
	U0129	○	-	-
	U1103	○	-	-
Power Steering ECU Assembly	U0100	○	-	-
Power Steering ECU Assembly	U0129	-	-	-
4WD ECU Assembly*	U0100	○	○	-
	U0126	-	-	-
	U0129	-	○	-
Combination Meter Assembly	U0100	○	○	○
	U0129	-	○	○
	U0131	-	○	○
	U0142	-	○	○
	U0151	-	○	○
	U0163	-	-	○
Brake Actuator Assembly (Skid Control ECU)*	U0100	○	-	-
	U0124	-	-	-
	U0126	-	○	-
Radio and Display Receiver Assembly*	U0100	○	-	-
	U0126	-	-	-
	U0129	-	○	-
	U0131	-	○	-
	U0140	-	○	-
	U0155	-	-	○
	U0164	-	○	-
Engine Stop and Start ECU	U0100	○	○	-
	U0121	-	○	-
	U0126	-	-	-
	U0131	-	○	-
	U0140	-	○	-
	U0151	-	○	-
	U0155	-	-	○
	U0164	-	○	-
Airbag Sensor Assembly	-	-	-	-
Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)	-	-	-	-


Output from	Output DTC	Trouble Mode (Short)
		V Bus
		CANH - CANL CANH - GND CANL - GND
Air Conditioning Amplifier Assembly	U0100	○
	U0131	○
	U0142	○
	U0155	○
Main Body ECU (Multiplex Network Body ECU)	U0100	○
	U0101	○
	U0151	○
	U0155	○
	U0164	○
ECM	U0122	○
	U0129	○
	U1103	○
Power Steering ECU Assembly	U0100	○
Power Steering ECU Assembly	U0129	○
4WD ECU Assembly*	U0100	○
	U0126	○
	U0129	○
Combination Meter Assembly	U0100	○
	U0129	○
	U0131	○
	U0142	○
	U0151	○
	U0163	○
Brake Actuator Assembly (Skid Control ECU)*	U0100	○
	U0124	○
	U0126	○
Radio and Display Receiver Assembly*	U0100	○
	U0126	○
	U0129	○
	U0131	○
	U0140	○
	U0155	○
	U0164	○
Engine Stop and Start ECU	U0100	○
	U0121	○
	U0126	○
	U0131	○
	U0140	○
	U0151	○
	U0155	○
	U0164	○
Airbag Sensor Assembly	-	-
Spiral with Sensor Cable Sub-assembly (Steering Angle Sensor)	-	-

CAN BUS WAVEFORMS
Tip:
- This waveform is measured between terminals CANH and GND, and terminals CANL and GND of the DLC3. (Use this as a reference for diagnosis of CAN communication lines.)
- When malfunctions in multiple ECUs are suspected based on the CAN bus check and DTCs checked using the GTS, check the resistance of the CAN bus using an ohmmeter first. If no problems are found, check the following waveforms.
- If a waveform is not similar to one of the following 3 patterns (Group 1), then an open in a CAN main wire, an open in a CAN branch wire, or a short between a CAN wire (CANH or CANL) and ground is suspected (Group 2).
- Wiggle the connector and wire harness to check if the waveform changes.
1. CAN bus waveforms (Group 1)
  1. Normal waveform
  2. Open in both of the lines (CANH and CANL) of a CAN branch
    Tip:
    - Waveforms (waveforms shown using dotted lines) are not output from an ECU or sensor connected to a CAN branch with an open circuit in both lines. (Waveforms from other ECUs or sensors are normal.)
    - Because this waveform is similar to a normal waveform, instead of using the waveform, the malfunctioning part can be narrowed down by performing a CAN bus check.
  3. Short between the CAN bus lines (CANH and CANL)
    Tip:
    - Waveforms disappear.
    - If the malfunction is in an ECU, disconnecting the ECU will change the waveform. If the waveform does not change, a malfunction in the wire harness is suspected.
2. CAN bus waveforms (reference) (Group 2)
  
  Note:
  The following CAN bus waveforms can be used only as reference. The actual measured waveform may differ significantly depending on the location of the open or short circuit.
  1. Open in a CAN branch wire (CANH)
    Tip:
    - An abnormal waveform is output from an ECU with an open in one of its CAN branch wires. 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 wire is disconnected.
  2. Open in a CAN branch wire (CANL)
    Tip:
    - An abnormal waveform is output from an ECU with an open in one of its CAN branch wires. 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 wire is disconnected.
  3. Open in a CAN main wire (CANH)
    Tip:
    - 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 wire can be confirmed by measuring the resistance between the CANH and CANL terminals of any CAN branch.
  4. Short between a CAN bus line (CANH) and ground
    Tip:
    - Narrow down the shorted part by checking for waveform changes when disconnecting connector(s) from the CAN junction connector(s) or when disconnecting ECUs or sensors.
    - A short to ground in the CANH line can be confirmed by measuring the resistance between CANH and ground using an ohmmeter.
  5. Short between a CAN bus line (CANL) and ground
    Tip:
    - Narrow down the shorted part by checking for waveform changes when disconnecting connector(s) from the CAN junction connector(s) or when disconnecting ECUs or sensors.
    - A short to ground in the CANL line can be confirmed by measuring the resistance between CANL and ground using an ohmmeter.

DATA SENDING/RECEIVING TABLE

Data sending/receiving table

Tip:

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	ECM	Brake actuator assembly (skid control ECU) Combination meter assembly Power steering ECU assembly Engine stop and start ECU	Air conditioning amplifier assembly 4WD ECU assembly Main body ECU (multiplex network body ECU) Airbag sensor assembly Radio and display receiver assembly	ECM [Engine and ECT] ECM [Engine] Brake actuator assembly (skid control ECU) [ABS/VSC/TRC] Combination meter assembly [Combination Meter] Power steering ECU assembly [EMPS] Engine stop and start ECU [Stop and Start]
Engine coolant temperature	ECM	4WD ECU assembly Air conditioning amplifier assembly Combination meter assembly	Power steering ECU assembly	ECM [Engine and ECT] ECM [Engine] 4WD ECU assembly [Four Wheel Drive] Combination meter assembly [Combination Meter] Air conditioning amplifier assembly [Air Conditioner]
Stop light switch	Brake actuator assembly (skid control ECU)	4WD ECU assembly Engine stop and start ECU	Power steering ECU assembly Airbag sensor assembly	Brake actuator assembly (skid control ECU) [ABS/VSC/TRC] 4WD ECU assembly [Four Wheel Drive] Engine stop and start ECU [Stop and Start]
Wheel speed signal	Brake actuator assembly (skid control ECU)	4WD ECU assembly	ECM Power steering ECU assembly Airbag sensor assembly Engine stop and start ECU	Brake actuator assembly (skid control ECU) [ABS/VSC/TRC] 4WD ECU assembly [Four Wheel Drive]
Steering angle signal	Spiral with sensor cable sub-assembly (steering angle sensor)	Brake actuator assembly (skid control ECU) 4WD ECU assembly Power steering ECU assembly	Airbag sensor assembly Radio and display receiver assembly	Brake actuator assembly (skid control ECU) [ABS/VSC/TRC] 4WD ECU assembly [Four Wheel Drive] Power steering ECU assembly [EMPS]
Turn signal switch signal	Combination meter assembly	-	-	Combination meter assembly [Combination Meter]
Vehicle speed	Brake actuator assembly (skid control ECU)	ECM Combination meter assembly Power steering ECU assembly Radio and display receiver assembly Engine stop and start ECU	Airbag sensor assembly	Brake actuator assembly (skid control ECU) [ABS/VSC/TRC] ECM [Engine and ECT] ECM [Engine] Combination meter assembly [Combination Meter] Power steering ECU assembly [EMPS] Radio and display receiver assembly [Navigation System] Engine stop and start ECU [Stop and Start]
Vehicle speed	Combination meter assembly*	-	Main body ECU (multiplex network body ECU) Air conditioning amplifier assembly	Combination meter assembly [Combination Meter]
Ambient temperature	Combination meter assembly	Air conditioning amplifier assembly 4WD ECU assembly	-	Combination meter assembly [Combination Meter] Air conditioning amplifier assembly [Air Conditioner] 4WD ECU assembly [Four Wheel Drive]
FL door courtesy	Main body ECU (multiplex network body ECU)	-	Combination meter assembly Engine stop and start ECU	Main body ECU (multiplex network body ECU) [Main Body]
FR door courtesy	Main body ECU (multiplex network body ECU)	-	Combination meter assembly Engine stop and start ECU	Main body ECU (multiplex network body ECU) [Main Body]
RL door courtesy	Main body ECU (multiplex network body ECU)	-	Combination meter assembly Engine stop and start ECU	Main body ECU (multiplex network body ECU) [Main Body]
RR door courtesy	Main body ECU (multiplex network body ECU)	-	Combination meter assembly Engine stop and start ECU	Main body ECU (multiplex network body ECU) [Main Body]
Back door courtesy	Main body ECU (multiplex network body ECU)	-	Radio and display receiver assembly Combination meter assembly	Main body ECU (multiplex network body ECU) [Main Body]

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

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

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.

Tip:

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.

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

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

Powertrain > Engine and ECT > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Vehicle Speed	Vehicle speed	Min.: 0 km/h (0 mph) Max.: 255 km/h (158 mph)	Actual vehicle speed	-
Engine Speed	Engine speed	Min.: 0 rpm Max.: 16383.75 rpm	Actual engine speed	-
Coolant Temp	Coolant temperature	Min.: -40°C (-72°F) Max.: 140°C (284°F)	75 to 100°C (167 to 212°F): After warming up	-

Powertrain > Engine and ECT > Data List


Tester Display
Vehicle Speed
Engine Speed
Coolant Temp

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

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.

Tip:

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

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

Powertrain > Engine > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Vehicle Speed	Vehicle speed	Min.: 0 km/h (0 mph) Max.: 255 km/h (158 mph)	Actual vehicle speed	-
Engine Speed	Engine speed	Min.: 0 rpm Max.: 16383 rpm	Actual engine speed	-
Coolant Temp	Engine coolant temperature	Min.: -40°C (-72°F) Max.: 140°C (284°F)	Equivalent to temperature at location of mass air flow meter	-

Powertrain > Engine > Data List


Tester Display
Vehicle Speed
Engine Speed
Coolant Temp

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

Note:

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

Tip:

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

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

Powertrain > Stop and Start > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Coolant Temp	Engine coolant temperature	Min.: 16°C (60.8°F) Max.: 127°C (260.6°F)	75 to 100°C (167 to 212°F): After warming up	This is sent from the ECM.
Engine Spd (ECM)	Engine speed signal from ECM via CAN communication	Min.: 0 rpm Max.: 12800 rpm	Actual engine speed	This is sent from the ECM.
Stop Light SW (ABS/VSC)	Stop light switch assembly signal from brake actuator assembly (skid control ECU) via CAN communication	OFF or ON	OFF: Brake pedal released ON: Brake pedal depressed	This is sent from the brake actuator assembly (skid control ECU).
Vehicle Spd1 (ABS/VSC)	Vehicle speed signal from brake actuator assembly (skid control ECU) via CAN communication	Min.: 0 km/h (0 mph) Max.: 327.67 km/h (203.6 mph)	Actual vehicle speed	-

Powertrain > Stop and Start > Data List


Tester Display
Coolant Temp
Engine Spd (ECM)
Stop Light SW (ABS/VSC)
Vehicle Spd1 (ABS/VSC)

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

Note:

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

Tip:

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

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

Chassis > ABS/VSC/TRAC > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Stop Light SW	Stop light switch	OFF or ON	OFF: Brake pedal released ON: Brake pedal depressed	-
Steering Angle Sensor	Steering angle sensor	Min.: -3276.8° Max.: 3276.7°	Turning left: Increases Turning right: Decreases	-
FR Wheel Speed	Front wheel speed sensor RH reading	Min.: 0 km/h (0 mph) Max.: 326.4 km/h (203 mph)	Actual vehicle speed	When driving at constant speed: No large fluctuations
FL Wheel Speed	Front wheel speed sensor LH reading	Min.: 0 km/h (0 mph) Max.: 326.4 km/h (203 mph)	Actual vehicle speed	When driving at constant speed: No large fluctuations
RR Wheel Speed	Rear wheel speed sensor RH reading	Min.: 0 km/h (0 mph) Max.: 326.4 km/h (203 mph)	Actual vehicle speed	When driving at constant speed: No large fluctuations
RL Wheel Speed	Rear wheel speed sensor LH reading	Min.: 0 km/h (0 mph) Max.: 326.4 km/h (203 mph)	Actual vehicle speed	When driving at constant speed: No large fluctuations
Vehicle Speed	Vehicle speed	Min.: 0 km/h (0 mph) Max.: 326.4 km/h (203 mph)	Actual vehicle speed	When driving at constant speed: No large fluctuations
Engine Revolutions	Engine speed	Min.: 0 rpm Max.: 65535 rpm	Actual engine speed	When engine speed is constant: No large fluctuations

Chassis > ABS/VSC/TRAC > Data List


Tester Display
Stop Light SW
Steering Angle Sensor
FR Wheel Speed
FL Wheel Speed
RR Wheel Speed
RL Wheel Speed
Vehicle Speed
Engine Revolutions

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

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.

Tip:

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

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

Chassis > Four Wheel Drive > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Stop Light SW	Stop light switch	OFF or ON	OFF: Brake pedal released ON: Brake pedal depressed	-
Steering Angle Value	Steering angle value	Min.: -3276.8° Max.: 3276.7°	Turning left: Increases Turning right: Decreases	-
FR Wheel Speed	Front wheel speed sensor RH reading	Min.: 0 km/h (0 mph) Max.: 326 km/h (203 mph)	Actual vehicle speed	When driving at constant speed: No large fluctuations
FL Wheel Speed	Front wheel speed sensor LH reading	Min.: 0 km/h (0 mph) Max.: 326 km/h (203 mph)	Actual vehicle speed	When driving at constant speed: No large fluctuations
RR Wheel Speed	Rear wheel speed sensor RH reading	Min.: 0 km/h (0 mph) Max.: 326 km/h (203 mph)	Actual vehicle speed	When driving at constant speed: No large fluctuations
RL Wheel Speed	Rear wheel speed sensor LH reading	Min.: 0 km/h (0 mph) Max.: 326 km/h (203 mph)	Actual vehicle speed	When driving at constant speed: No large fluctuations
Engine Coolant Temperature	Engine coolant temperature	Min.: 0°C (32°F) Max.: 127.5°C (261.5°F)	Actual engine coolant temperature is displayed	-

Chassis > Four Wheel Drive > Data List


Tester Display
Stop Light SW
Steering Angle Value
FR Wheel Speed
FL Wheel Speed
RR Wheel Speed
RL Wheel Speed
Engine Coolant Temperature

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

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.

Tip:

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

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

Chassis > EMPS > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Meter Vehicle Velocity	Vehicle speed from meter	Min.: 0 km/h (0 mph) Max.: 300 km/h (186 mph)	Actual vehicle speed	-
Engine Revolution	Engine speed	Min.: 0 rpm Max.: 12800 rpm	Actual engine speed	-
Steering Angle Velocity	Steering angle speed	Min.: -32768 deg/s Max.: 32767 deg/s	Left turn: Increases Right turn: Decreases	-

Chassis > EMPS > Data List


Tester Display
Meter Vehicle Velocity
Engine Revolution
Steering Angle Velocity

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.

Tip:

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

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

Body Electrical > Air Conditioner > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Ambient Temp Sensor	Thermistor assembly (ambient temperature sensor)	Min.: -23.30°C (-9.94°F) Max.: 65.95°C (150.71°F)	Actual ambient temperature displayed	-
Engine Coolant Temp	Engine coolant temperature sensor	Min.: 1.30°C (34.34°F) Max.: 90.55°C (194.99°F)	Actual engine coolant temperature is displayed	-

Body Electrical > Air Conditioner > Data List


Tester Display
Ambient Temp Sensor
Engine Coolant Temp

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.

Tip:

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

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

Body Electrical > Combination Meter > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Vehicle Speed Meter	Vehicle speed signal	Min.: 0 km/h (0 mph) Max.: 255 km/h (158 mph)	Actual vehicle speed	When driving at constant speed: No large fluctuations
Engine Rpm	Engine speed	Min.: 0 rpm Max.: 12750 rpm	Actual engine speed	When engine speed is constant: No large fluctuations
Coolant Temperature	Engine coolant temperature	Min.: 0°C (32°F) Max.: 127.5°C (261.5°F)	Actual engine coolant temperature is displayed	-
Ambient Temperature	Outside temperature	Min.: -40°C (-72°F) Max.: 87.5°C (190 °F)	Almost the same as actual outside temperature	The temperature displayed on the multi-information display is -40 to 87.5°C (-72 to 190°F)
Turn Signal Switch (Right)	Turn RH signal switch	OFF or ON	OFF: Turn signal light switch off ON: Turn signal light switch right	-
Turn Signal Switch (Left)	Turn LH signal switch	OFF or ON	OFF: Turn signal light switch off ON: Turn signal light switch left	-

Body Electrical > Combination Meter > Data List


Tester Display
Vehicle Speed Meter
Engine Rpm
Coolant Temperature
Ambient Temperature
Turn Signal Switch (Right)
Turn Signal Switch (Left)

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

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.

Tip:

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

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

Body Electrical > Main Body > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
RR Door Courtesy SW	Rear door courtesy light switch assembly RH signal	OFF or ON	OFF: Rear door RH closed ON: Rear door RH open	-
RL Door Courtesy SW	Rear door courtesy light switch assembly LH signal	OFF or ON	OFF: Rear door LH closed ON: Rear door LH open	-
Back Door Courtesy SW	Back door courtesy light switch	OFF or ON	OFF: Back door closed ON: Back door open	-
D Seat Buckle SW	Driver side seat belt buckle signal	OFF or ON	OFF: Driver side seat belt unfastened ON: Driver side seat belt fastened	-
FR Door Courtesy SW	Front door courtesy light switch assembly RH signal	OFF or ON	OFF: Front door RH closed ON: Front door RH open	-
FL Door Courtesy SW	Front door courtesy light switch assembly LH signal	OFF or ON	OFF: Front door LH closed ON: Front door LH open	-

Body Electrical > Main Body > Data List


Tester Display
RR Door Courtesy SW
RL Door Courtesy SW
Back Door Courtesy SW
D Seat Buckle SW
FR Door Courtesy SW
FL Door Courtesy SW

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

Note:

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

Tip:

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

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

Body Electrical > Navigation System > Data List


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

Body Electrical > Navigation System > Data List


Tester Display
Vehicle Speed