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

ECUS OR SENSORS WHICH COMMUNICATE THROUGH CAN COMMUNICATION SYSTEM
1. V Bus
  1. Combination meter assembly
  2. Certification ECU (smart key ECU assembly)*1
  3. Steering sensor (spiral cable with sensor sub-assembly)*2
  4. Radio and display receiver assembly*3
  5. Airbag sensor assembly
  6. Power steering ECU assembly
  7. Air conditioning amplifier assembly*4
  8. Clearance warning ECU assembly*5
  9. Engine stop and start ECU*6
  10. Brake actuator assembly
  11. Main body ECU (multiplex network body ECU)
  12. Headlight leveling ECU assembly*7
  13. Headlight swivel ECU assembly*8
  14. ECM
  15. Pre-crash safety city sensor*9
  16. Telematics transceiver*10

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

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


ECU / Sensor Name	GTS Display	Applicability
ECM	ECM (Engine) TCM*1	Vehicles for 1ND-TV
ECM	ECM (Engine)	Vehicles for 1NR-FE, 1ZR-FE, 1WW, 2ZR-FE or 8NR-FTS
ECM	ECM (Engine) VALVEMATIC Driver2 Power Management3	Vehicles for 1ZR-FAE
Main body ECU (multiplex network body ECU)	Main Body	Installed on all vehicles
Brake actuator assembly	Skid Control (ABS/VSC/TRAC)	Installed on all vehicles
Power steering ECU assembly	Power Steering (EPS)	Installed on all vehicles
Air conditioning amplifier assembly	Air Conditioning Amplifier	Vehicles with Air Conditioning System
Airbag sensor assembly	Airbag	Installed on all vehicles
Certification ECU (smart key ECU assembly)	Certification (Smart)	Vehicles with Entry and Start System
Steering sensor (spiral cable with sensor sub-assembly)	Spiral cable (Steering Angle Sensor)	Vehicles with VSC
Combination meter assembly	Combination Meter	Installed on all vehicles
Radio and display receiver assembly	Display and Navigation (AVN1)	Vehicles for Radio and Display Type
Clearance warning ECU assembly	Clearance Warning (Clearance Sonar2)	Vehicles with Simple Intelligent Parking Assist System
Engine stop and start ECU	Stop & Go	Vehicles with Stop and Start System
Headlight leveling ECU assembly	Headlight swivel (AFS)	Vehicles with Automatic Headlight Beam Level Control System for Sedan
Headlight swivel ECU assembly	Headlight swivel (AFS)	Vehicles with Automatic Headlight Beam Level Control System except Sedan
Pre-crash safety city sensor	Front Camera Module	Vehicles with Toyota Safety Sense
Telematics transceiver	DCM	Vehicles with Manual (SOS) Switch

Tip:

The names of ECUs and sensors shown on the GTS display may differ from those shown in the DTC Table by ECU section.
*1: w/ Multi-mode Manual Transaxle System
*2: If "ECM (Engine)" is displayed but "VALVEMATIC Driver" is not displayed, a local CAN communication error between the ECM and continuously variable valve lift controller assembly is suspected. (Output DTC: U011B)
*3: If "ECM (Engine)" is displayed but "Power Management" is not displayed, a local CAN communication error between the ECM and generator control ECU assembly is suspected.
The generator control ECU assembly is displayed as "Power Management" when a CAN bus check is performed.

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 the CAN Bus Check screen.

CAN Bus Check

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.
	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 screen.
*2: Gateway function equipped ECU that does not memorize the sub bus ECUs that are connected to it.
*3: Gateway function equipped ECU that memorizes the sub bus ECUs that are connected to it.
If none of the connected ECUs are displayed, or there is no response from the vehicle to the GTS, check the DLC3 branch and the V bus main bus lines for a malfunction.

Observe the connection response screen for approximately 2 minutes to check for a change in connection status of the connected ECUs and sensors.
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 CAN bus check. Then observe the communication status of each ECU on the screen.

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

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

*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 sensor which is not displayed) is suspected.

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

*a	Not displayed or background color changes to red

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

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

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 red

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

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

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

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

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

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

*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 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

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 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.)

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 line 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 bus lines 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 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

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

ECM (for 1ND-TV) / GTS Display "Engine and ECT"

Powertrain > Engine and ECT > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.
*: w/ Stop and Start System

Table 4. ECM / GTS Display "Engine and ECT"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0129	Lost Communication with Skid Control ECU	The ECM does not receive data from the brake actuator assembly for 2.4 seconds or more.	Both conditions are met: The ignition switch is ON for 2.1 seconds or more. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 4.5 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.
U1103*	Lost Communication with Stop and Start Control Module	The ECM does not receive data from the engine stop and start ECU for 1.25 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 2.25 seconds.	-	DTC is stored until it is cleared using the GTS.

TCM (for 1ND-TV and Multi-mode Manual Transaxle System) / GTS Display "Multi-Mode M/T"

Powertrain > Multi-Mode M/T > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.
*: Refer to Multi-mode Manual Transaxle System.
Click here

Table 5. TCM / GTS Display "Multi-Mode M/T"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100*	Lost Communication with ECM / PCM "A"	The TCM does not receive data from the ECM for 7.4 seconds or more.	Both conditions are met: The ignition switch is ON for 0.5 seconds or more. The power source voltage of the TCM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 7.9 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.

ECM (for 1ZR-FAE) / GTS Display "Engine and ECT"

Powertrain > Engine and ECT > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.
*: This DTC is stored due to a local CAN communication error between the ECM and continuously variable lift controller assembly.

Table 6. ECM / GTS Display "Engine and ECT"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0129	Lost Communication with Brake System Control Module	The ECM does not receive data from the brake actuator assembly for 2.34 seconds or more.	Both conditions are met: The ignition switch is ON for 10 seconds or more. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 12.34 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.
U011B*	Lost Communication with Rocker Arm Control Module "A"	The ECM does not receive data from the continuously variable valve lift controller assembly for 0.2 seconds or more.	Both conditions are met: The ignition switch is ON for 0.05 seconds or more. The power source voltage of the ECM is 8 V or more.	Turn the ignition switch to ON and wait at least 1 second.	MIL illuminates.	DTC is stored until it is cleared using the GTS.

ECM (for 1NR-FE, 1ZR-FE or 2ZR-FE) / GTS Display "Engine and ECT"

Tip:
The ECM is connected to the CAN communication system, but the ECM does not store or output CAN communication DTCs.

ECM (for 8NR-FTS) / GTS Display "Engine"

Powertrain > Engine > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.
*1: Refer to SFI System.
Click here
*2: w/ Stop and Start System
*3: w/ Multi-information Display (Segment LCD type)
*4: w/ Multi-information Display (Dot LCD type, color TFT type)
The ECM incorporates the speed limiter system.

Table 7. ECM / GTS Display "Engine"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U010187*1	Lost Communication with TCM Missing Message	The ECM does not receive data from the TCM for 1.25 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 2.25 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.
U012200	Lost Communication with Vehicle Dynamics Control Module	The ECM does not receive data from the brake actuator assembly for 2.34 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 3.34 seconds.	Adjustable speed limiter indicator (amber) illuminates.3 Displays messages on the multi-information display.4	DTC is stored until it is cleared using the GTS.
U012587	Lost Communication with Multi-axis Acceleration Sensor Module Missing Message	The ECM does not receive data from the airbag sensor assembly for 1 second or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 2 seconds.	-	DTC is stored until it is cleared using the GTS.
U012987	Lost Communication with Brake System Control Module Missing Message	The ECM does not receive data from the brake actuator assembly for 2.34 seconds or more.	Both conditions are met: The ignition switch is ON for 2 seconds or more. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 4.34 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.
U110387*2	Lost Communication with Stop and Start Control Module	The ECM does not receive data from the engine stop and start ECU for 1.16 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 2.16 seconds.	-	DTC is stored until it is cleared using the GTS.

TCM (for 8NR-FTS and Manual Transaxle System) / GTS Display "Transmission"

Powertrain > Transmission > Trouble Codes

Tip:

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

Table 8. TCM / GTS Display "Transmission"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U010087*	Lost Communication with TCM Missing Message	The TCM does not receive data from the ECM for 1.25 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 2.25 seconds.	-	DTC is stored until it is cleared using the GTS.

TCM (for 8NR-FTS and Continuously Variable Transaxle System) / GTS Display "Transmission"

Powertrain > Transmission > Trouble Codes

Tip:

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

Table 9. TCM / GTS Display "Transmission"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U010087*	Lost Communication with TCM Missing Message	The TCM does not receive data from the ECM for 1.25 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the ECM is 10.5 V or more.	Turn the ignition switch to ON and wait at least 2.25 seconds.	MIL illuminates.	DTC is stored until it is cleared using the GTS.

ECM (for 8NR-FTS) / GTS Display "Cruise Control"

Powertrain > Cruise Control > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.

Table 10. ECM / GTS Display "Cruise Control"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U012287	Lost Communication with Vehicle Dynamics Control Module Missing Message	The ECM does not receive data from the brake actuator assembly for 2.58 seconds or more.	All conditions are met: The ignition switch is ON for 2.1 seconds or more. The power source voltage of the ECM is 10.5 V or more. The radar cruise control system (vehicle control mode) is operating.	Allow the radar cruise control system (vehicle control mode) to operate for 4.68 seconds or more.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

ECM (for 1WW) / GTS Display "Engine and ECT"

Powertrain > Engine and ECT > Trouble Codes

Tip:

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

Table 11. ECM / GTS Display "Engine and ECT"
DTC	Detection Item	DTC Detection Condition	Warning Indication in Meter	DTC Storage Method
U0028	Vehicle Communication Bus "A"	Communication malfunction. (3 trip detection logic)	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	No communication between ECM and skid control ECU. (1 trip detection logic)	MIL illuminates.	DTC is stored until it is cleared using the GTS.
U0307*	Software Incompatibility With Glow Plug Control Module 1	Incorrect glow plug controller assembly installed. (3 trip detection logic)	-	DTC is stored until it is cleared using the GTS.
U1500*	OMI Not Initialized	OMI (Oil Maintenance Interval) initialization is not performed. (1 trip detection logic)	-	DTC is stored until it is cleared using the GTS.

Brake Actuator Assembly (w/o VSC) / GTS Display "ABS/VSC/TRC"

Chassis > ABS/VSC/TRC > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.

Table 12. Brake Actuator Assembly / GTS Display "ABS/VSC/TRC"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0073	Control Module Communication Bus OFF	Bus off is judged for 0.1 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the brake actuator assembly (+BS terminal voltage) is between 9.6 and 16.5 V.	Turn the ignition switch to ON and check that the initial light check illumination turns off, and then wait at least 3 seconds.	ABS warning light illuminates. Brake warning light illuminates.	DTC is stored until it is cleared using the GTS.

Brake Actuator Assembly (w/ VSC) / GTS Display "ABS/VSC/TRC"

Chassis > ABS/VSC/TRC > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.

Table 13. Brake Actuator Assembly / GTS Display "ABS/VSC/TRC"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0073	Control Module Communication Bus OFF	Bus off is judged for 0.1 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage (+BS terminal voltage) of the brake actuator assembly is between 9.6 and 16.5 V.	Turn the ignition switch to ON and check that the initial light check illumination turns off, and then wait at least 3 seconds.	ABS warning light illuminates. Brake warning light illuminates. Slip warning light illuminates.	DTC is stored until it is cleared using the GTS.
U0100	Lost Communication with ECM/PCM	The brake actuator assembly does not receive data from the ECM for 2.5 seconds or more.	All conditions are met: Vehicle speed is 6 km/h (4 mph) or more. The ignition switch is ON for 1 second or more. The power source voltage (+BS terminal voltage) of the brake actuator assembly is between 9.6 and 16.5 V.	Turn the ignition switch to ON and drive the vehicle at a speed of 6 km/h (4 mph) or more for 6 seconds or more. Check that the warning light remains off after turning off following the initial light check.	Slip warning light illuminates.	DTC is stored until it is cleared using the GTS.
U0123	Lost Communication with Yaw Rate Sensor Module	The brake actuator assembly does not receive data from the airbag sensor assembly for 1.1 seconds or more.	All conditions are met: Vehicle speed is 6 km/h (4 mph) or more. The ignition switch is ON for 1 second or more. The power source voltage (+BS terminal voltage) of the brake actuator assembly is between 9.6 and 16.5 V.	Turn the ignition switch to ON and drive the vehicle at a speed of 6 km/h (4 mph) or more for 3 seconds or more. Check that the warning light remains off after turning off following the initial light check.	Slip warning light illuminates.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	The brake actuator assembly does not receive data from the steering sensor (spiral cable with sensor sub-assembly) for 1.1 seconds or more.	All conditions are met: Vehicle speed is 6 km/h (4 mph) or more. The ignition switch is ON for 1 second or more. The power source voltage (+BS terminal voltage) of the brake actuator assembly is between 9.6 and 16.5 V.	Turn the ignition switch to ON and drive the vehicle at a speed of 6 km/h (4 mph) or more for 3 seconds or more. Check that the warning light remains off after turning off following the initial light check.	Slip warning light illuminates.	DTC is stored until it is cleared using the GTS.

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

Body Electrical > Main Body > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.
*1: w/ Entry and Start System
*2: w/ Toyota Safety Sense

Table 14. Main Body ECU (Multiplex Network Body ECU) / GTS Display "Main Body"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication With ECM/PCM "A"	The main body ECU (multiplex network body ECU) does not receive data from the ECM for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0101	Lost Communication with ECT	The main body ECU (multiplex network body ECU) does not receive data from the ECM for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0120*1	Lost Communication With Starter / Generator Control Module	The main body ECU (multiplex network body ECU) does not receive data from the certification ECU (smart key ECU assembly) for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0151	Lost Communication with Airbag ECU	The main body ECU (multiplex network body ECU) does not receive data from the airbag sensor assembly for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Combination Meter	The main body ECU (multiplex network body ECU) does not receive data from the combination meter assembly for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0164	Communication Error from A/C	The main body ECU (multiplex network body ECU) does not receive data from the air conditioning amplifier assembly for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U023A*2	Lost Communication with Front Camera Module	The main body ECU (multiplex network body ECU) does not receive data from the pre-crash safety city sensor for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0327*1	Software Incompatibility with Vehicle Security Control Module	The main body ECU (multiplex network body ECU) does not receive data from the certification ECU (smart key ECU assembly) for 10 seconds or more.	Both conditions are met: Power source status change (+B OFF → ON, ACC ON ←→ OFF, IG ON ←→ OFF) is detected and 10 seconds or more elapse. The power source voltage of the main body ECU (multiplex network body ECU) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.

Combination Meter Assembly / GTS Display "Combination Meter"

Body Electrical > Combination Meter > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.
*: for Multi-information Display (Segment LCD Type)

Table 15. Combination Meter Assembly / GTS Display "Combination Meter"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The combination meter assembly does not receive data from the ECM for 2 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the combination meter assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 2 seconds.	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Skid Control ECU	The combination meter assembly does not receive data from the brake actuator assembly for 3 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the combination meter assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 3 seconds.	-	DTC is stored until it is cleared using the GTS.
U0131	Lost Communication with Power Steering Control Module	The combination meter assembly does not receive data from the power steering ECU assembly for 3 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the combination meter assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 3 seconds.	EPS warning light illuminates.	DTC is stored until it is cleared using the GTS.
U0142*	Lost Communication with Body Control Module "B"	The combination meter assembly does not receive data from the main body ECU (multiplex network body ECU) for 3 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the combination meter assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 3 seconds.	-	DTC is stored until it is cleared using the GTS.
U0151	Lost Communication with Airbag ECU	The combination meter assembly does not receive data from the airbag sensor assembly for 10 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the combination meter assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	SRS warning light illuminates.	DTC is stored until it is cleared using the GTS.
U0163	Lost Communication With Navigation Control Module	The combination meter assembly does not receive data from the radio and display receiver assembly for 3 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the combination meter assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 3 seconds.	-	DTC is stored until it is cleared using the GTS.
U023A	Lost Communication with Front Camera Module	The combination meter assembly does not receive data from the pre-crash safety city sensor for 10 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the combination meter assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the GTS.

Steering Sensor (Spiral Cable with Sensor Sub-assembly) (w/ VSC) / GTS Display "-"

Tip:
The steering sensor (spiral cable with sensor sub-assembly) is connected to the CAN communication system, but the steering sensor (spiral cable with sensor sub-assembly) does not store or output CAN communication DTCs.
Airbag Sensor Assembly / GTS Display "Airbag"

Tip:
The airbag sensor assembly is connected to the CAN communication system, but the airbag sensor assembly does not store or output CAN communication DTCs.

Air Conditioning Amplifier Assembly (w/ Air Conditioning System) / GTS Display "Air Conditioner"

Body Electrical > Air Conditioner > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.

Table 16. Air Conditioning Amplifier Assembly / GTS Display "Air Conditioner"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM	The air conditioning amplifier assembly does not receive data from the ECM for 5 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the GTS.
U0131	Lost Communication with Electric Power Steering ECU	The air conditioning amplifier assembly does not receive data from the power steering ECU assembly for 5 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Main Body ECU	The air conditioning amplifier assembly does not receive data from the main body ECU (multiplex network body ECU) for 5 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Combination Meter	The air conditioning amplifier assembly does not receive data from the combination meter assembly for 5 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	-	DTC is stored until it is cleared using the GTS.

Power Steering ECU Assembly / GTS Display "EMPS"

Chassis > EMPS > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.

Table 17. Power Steering ECU Assembly / GTS Display "EMPS"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The power steering ECU assembly does not receive data from the ECM for 300 seconds or more.	All conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the power steering ECU assembly is 9 V or more. Vehicle speed is 20 km/h (12 mph) or more.	Drive the vehicle for 303 seconds at a speed of 20 km/h (12 mph) or more.	EPS warning light illuminates.	DTC remains stored only while malfunction is occurring.
U0129	Lost Communication with Brake System Control Module	The power steering ECU assembly does not receive data from the brake actuator assembly for 2.34 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the power steering ECU assembly is 9 V or more.	Turn the ignition switch to ON and wait at least 5.34 seconds.	EPS warning light illuminates.	DTC remains stored only while malfunction is occurring.
U1110	Lost Communication with Clearance Sonar Module	The power steering ECU assembly does not receive data from the clearance warning ECU assembly for 1.34 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the power steering ECU assembly is 9 V or more.	Turn the ignition switch to ON and wait at least 4.34 seconds.	-	DTC remains stored only while malfunction is occurring.

Certification ECU (Smart Key ECU Assembly) (w/ Entry and Start System) / GTS Display "Entry&Start"

Body Electrical > Entry&Start > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.
*: w/ Stop and Start System

Table 18. Certification ECU (Smart Key ECU Assembly) / GTS Display "Entry&Start"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM	The certification ECU (smart key ECU assembly) does not receive data from the ECM for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 10 seconds or more. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Main Body ECU	The certification ECU (smart key ECU assembly) does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 10 seconds or more. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Combination Meter	The certification ECU (smart key ECU assembly) does not receive data from the combination meter assembly for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 10 seconds or more. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U1103*	Lost Communication with Stop and Start Control Module	The certification ECU (smart key ECU assembly) does not receive data from the engine stop and start ECU for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 10 seconds or more. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.

Certification ECU (Smart Key ECU Assembly) (w/ Entry and Start System) / GTS Display "Power Source Control"

Body Electrical > Power Source Control > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.
*: w/ Stop and Start System

Table 19. Certification ECU (Smart Key ECU Assembly) / GTS Display "Power Source Control"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM / PCM	The certification ECU (smart key ECU assembly) does not receive data from the ECM for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 10 seconds or more. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Main Body ECU	The certification ECU (smart key ECU assembly) does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 10 seconds or more. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Combination Meter	The certification ECU (smart key ECU assembly) does not receive data from the combination meter assembly for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 10 seconds or more. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.
U1103*	Lost Communication with Stop and Start Control Module	The certification ECU (smart key ECU assembly) does not receive data from the engine stop and start ECU for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 10 seconds or more. The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the ignition switch to ON and wait at least 20 seconds.	-	DTC is stored until it is cleared using the GTS.

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

Body Electrical > Navigation System > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.

Table 20. Radio and Display Receiver Assembly / GTS Display "Navigation System"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0073	Sending Malfunction (Navigation to APGS)	The radio and display receiver assembly does not send/receive data 10 times in succession.	Both conditions are met: The ignition switch is ACC for 1 second or more. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ACC and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.
U0100	Engine ECU Communication	The radio and display receiver assembly does not receive data from the ECM for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.
U0129	VSC (ECB) ECU Communication	The radio and display receiver assembly does not receive data from the brake actuator assembly for 1 second or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 2 seconds.	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	The radio and display receiver assembly does not receive data from the main body ECU (multiplex network body ECU) for 3 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 4 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Meter ECU Communication	The radio and display receiver assembly does not receive data from the combination meter assembly for 30 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 31 seconds.	-	DTC is stored until it is cleared using the GTS.
U0164	Air Conditioner ECU Communication	The radio and display receiver assembly does not receive data from the air conditioning amplifier assembly for 15 seconds or more.	Both conditions are met: The ignition switch is ON. The power source voltage of the radio and display receiver assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 15 seconds.	-	DTC is stored until it is cleared using the GTS.

Clearance Warning ECU Assembly (w/ Simple Intelligent Parking Assist System) / GTS Display "Clearance Sonar / Simple-IPA."

Body Electrical > Clearance Sonar / Simple-IPA. > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.
*1: Refer to Simple Intelligent Parking Assist System
Click here
*2: w/ Stop and Start System

Table 21. Clearance Warning ECU Assembly / GTS Display "Clearance Sonar / Simple-IPA."
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0073	Control Module Communication Bus "A" Off	The clearance warning ECU assembly detects bus-off or register freeze.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 10.05 seconds.	-	DTC is stored until it is cleared using the GTS.
U0100	Lost Communication with ECM/PCM "A"	The clearance warning ECU assembly does not receive data from the ECM for 3.5 seconds or more.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 8.5 seconds.	-	DTC is stored until it is cleared using the GTS.
U0101	Lost Communication with TCM	The clearance warning ECU assembly does not receive data from the TCM for 5 seconds or more.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 10 seconds.	-	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	The clearance warning ECU assembly does not receive data from the steering sensor (spiral cable with sensor sub-assembly) for 11.2 seconds or more.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 16.2 seconds.	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	The clearance warning ECU assembly does not receive data from the brake actuator assembly for 5.1 seconds or more.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 10.1 seconds.	-	DTC is stored until it is cleared using the GTS.
U0131	Lost Communication with Power Steering Control Module	The clearance warning ECU assembly does not receive data from the power steering ECU assembly for 1.4 seconds or more.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 6.4 seconds.	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	The clearance warning ECU assembly does not receive data from the main body ECU (multiplex network body ECU) for 11 seconds or more.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 16 seconds.	-	DTC is stored until it is cleared using the GTS.
U0151	Lost Communication with Restraints Control Module	The clearance warning ECU assembly does not receive data from the airbag sensor assembly for 1.2 seconds or more.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 6.2 seconds.	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Combination Meter	The clearance warning ECU assembly does not receive data from the combination meter assembly for 11 seconds or more.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 16 seconds.	-	DTC is stored until it is cleared using the GTS.
U0164	Lost Communication with HVAC Control Module	The clearance warning ECU assembly does not receive data from the air conditioning amplifier assembly for 11 seconds or more.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 16 seconds.	-	DTC is stored until it is cleared using the GTS.
U0301*1	Software Incompatibility with ECM/PCM	Storage information on the clearance warning ECU assembly and data sent from ECM/PCM is different.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 6 seconds.	-	DTC is stored until ECU information becomes the same as send data from ECM/PCM.
U0322*1	Software Incompatibility with Body Control Module	Storage information on the clearance warning ECU assembly and data sent from body control module is different.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 8 seconds.	-	DTC is stored until ECU information becomes the same as send data from main body ECU (multiplex network body ECU).
U1103*2	Lost Communication with Stop and Start Control Module	The clearance warning ECU assembly does not receive data from the engine stop and start ECU assembly for 1.2 seconds or more.	Both conditions are met: The ignition switch is ON for 5 seconds or more. The power source voltage of the clearance warning ECU assembly is 10.2 V or more.	Turn the ignition switch to ON and wait at least 6.2 seconds.	-	DTC is stored until it is cleared using the GTS.

Headlight Swivel ECU Assembly (except Sedan with Automatic Headlight Beam Level Control System) / GTS Display "AFS"

Body Electrical > AFS > Trouble Codes

Tip:

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

Table 22. Headlight Swivel ECU Assembly / GTS Display "AFS"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0073	Control Module Communication Bus Off	The headlight swivel ECU assembly does not send/receive data 10 times in succession.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the headlight swivel ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 13 seconds.	-	DTC is stored until it is cleared using the GTS.
U0100	Lost Communication with ECM	The headlight swivel ECU assembly does not receive data from the ECM for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the headlight swivel ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 13 seconds.	AFS OFF indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Skid Control ECU	The headlight swivel ECU assembly does not receive data from the brake actuator assembly for 5 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the headlight swivel ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 8 seconds.	AFS OFF indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Main Body ECU	The headlight swivel ECU assembly does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the headlight swivel ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 13 seconds.	AFS OFF indicator light flashes.	DTC is stored until it is cleared using the GTS.
U1000*	CAN Communication Failure(Message Registry)	The headlight swivel ECU assembly does not send/receive data 10 times in succession.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the headlight swivel ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 13 seconds.	-	DTC is stored until it is cleared using the GTS.

Headlight Leveling ECU Assembly (for Sedan with Automatic Headlight Beam Level Control System) / GTS Display "HL AutoLeveling"

Body Electrical > HL AutoLeveling > Trouble Codes

Tip:

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

Table 23. Headlight Leveling ECU Assembly / GTS Display "HL AutoLeveling"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM / PCM "A"	The headlight leveling ECU assembly does not receive data from the ECM for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the headlight leveling ECU assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	The headlight leveling ECU assembly does not receive data from the brake actuator assembly for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the headlight leveling ECU assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	The headlight leveling ECU assembly does not receive data from the main body ECU (multiplex network body ECU) for 10 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the headlight leveling ECU assembly is 9.5 V or more.	Turn the ignition switch to ON and wait at least 11 seconds.	-	DTC is stored until it is cleared using the GTS.
U1000*	CAN Communication Failure(Message Registry)	The headlight leveling ECU assembly does not send/receive data 10 times in succession.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the headlight leveling ECU assembly is 10 V or more.	Turn the ignition switch to ON and wait at least 13 seconds.	-	DTC is stored until it is cleared using the GTS.

Engine Stop and Start ECU (w/ Stop and Start System) / GTS Display "Stop and Start"

Powertrain > Stop and Start > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.
*: w/ Simple Intelligent Parking Assist System

Table 24. Engine Stop and Start ECU / GTS Display "Stop and Start"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The engine stop and start ECU does not receive data from the ECM for 0.76 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the ignition switch to ON and wait at least 1.76 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0121	Lost Communication with Anti-Lock Brake System (ABS) Control Module	The engine stop and start ECU does not receive data from the brake actuator assembly for 2.22 seconds or more.	Both conditions are met: The ignition switch is ON for 2.1 seconds or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the ignition switch to ON and wait at least 4.32 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	The engine stop and start ECU does not receive data from the steering sensor (spiral cable with sensor sub-assembly) for 0.72 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the ignition switch to ON and wait at least 1.72 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0131	Lost Communication with Power Steering Control Module	The engine stop and start ECU does not receive data from the power steering ECU assembly for 0.8 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the ignition switch to ON and wait at least 1.8 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with J/B ECU	The engine stop and start ECU does not receive data from the main body ECU (multiplex network body ECU) for 3.6 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the ignition switch to ON and wait at least 4.6 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0151	Lost Communication with SRS Airbag ECU	The engine stop and start ECU does not receive data from the airbag sensor assembly for 10.6 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the ignition switch to ON and wait at least 11.6 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster Control Module (Combination Meter)	The engine stop and start ECU does not receive data from the combination meter assembly for 10.6 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the ignition switch to ON and wait at least 11.6 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U0164	Lost Communication with HVAC Control Module	The engine stop and start ECU does not receive data from the air conditioning amplifier assembly for 10.6 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the ignition switch to ON and wait at least 11.6 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.
U1110*	Lost Communication with Clearance Sonar Module	The engine stop and start ECU does not receive data from the clearance warning ECU assembly for 0.85 seconds or more.	Both conditions are met: The ignition switch is ON for 1 second or more. The power source voltage of the engine stop and start ECU is 10.5 V or more.	Turn the ignition switch to ON and wait at least 1.85 seconds.	Stop and start cancel indicator light flashes.	DTC is stored until it is cleared using the GTS.

Pre-crash Safety City Sensor (w/ Toyota Safety Sense) / GTS Display "PCS/LDA/RSA/LVN"

Chassis > PCS/LDA/RSA/LVN > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.
When the pre-crash safety city sensor is extremely hot or cold, a communication error may occur and DTC U023A may be stored. Communication will return to normal when the temperature of the pre-crash safety city sensor returns to normal.
The pre-crash safety city sensor incorporates the pre-crash safety system, lane departure alert system, automatic high beam system and road sign assist system.
*: Only when the lane departure alert system is operating.

Table 25. Pre-crash Safety City Sensor / GTS Display "PCS/LDA/RSA/LVN"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	The pre-crash safety city sensor does not receive data from the ECM for 3.072 seconds or more.	All conditions are met: The ignition switch is ON for 3 seconds or more. Vehicle speed is 5 km/h (3 mph) or more. The power source voltage of the pre-crash safety city sensor is 10 V or more.	Drive the vehicle at a speed of 5 km/h (3 mph) or more for 6.072 seconds or more.	PCS OFF warning light flashes. Displays messages on the multi-information display. Lane departure alert indicator light does not illuminate.* Master warning light illuminates.	DTC is stored until it is cleared using the GTS.
U0123	Lost Communication with Yaw Rate Sensor Module	The pre-crash safety city sensor does not receive data from the airbag sensor assembly for 1 second or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the pre-crash safety city sensor is 10 V or more.	Turn the ignition switch to ON and wait at least 4 seconds.	PCS OFF warning light flashes. Displays messages on the multi-information display. Lane departure alert indicator light does not illuminate.* Master warning light illuminates.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	The pre-crash safety city sensor does not receive data from the steering sensor (spiral cable with sensor sub-assembly) for 1 second or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the pre-crash safety city sensor is 10 V or more.	Turn the ignition switch to ON and wait at least 4 seconds.	PCS OFF warning light flashes. Displays messages on the multi-information display. Lane departure alert indicator light does not illuminate.* Master warning light illuminates.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	The pre-crash safety city sensor does not receive data from the brake actuator assembly for 5 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the pre-crash safety city sensor is 10 V or more.	Turn the ignition switch to ON and wait at least 8 seconds.	PCS OFF warning light flashes. Displays messages on the multi-information display. Lane departure alert indicator light does not illuminate.* Master warning light illuminates.	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication With Instrument Panel Cluster (IPC) Control Module	The pre-crash safety city sensor does not receive data from the combination meter assembly for 80 seconds or more.	All conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the pre-crash safety city sensor is 10 V or more. Vehicle speed is 5 km/h (3 mph) or more.	Drive the vehicle at a speed of 5 km/h (3 mph) or more for 83 seconds or more.	PCS OFF warning light flashes. Displays messages on the multi-information display. Lane departure alert indicator light does not illuminate.* Master warning light illuminates.	DTC is stored until it is cleared using the GTS.
U023A	Lost Communication with Front Camera Module	The brake actuator assembly does not receive data from the pre-crash safety city sensor for 2 seconds or more.	Both conditions are met: The ignition switch is ON for 3 seconds or more. The power source voltage of the pre-crash safety city sensor is 10 V or more.	Turn the ignition switch to ON and wait at least 5 seconds.	PCS OFF warning light flashes. Displays messages on the multi-information display. Master warning light illuminates.	DTC is stored until it is cleared using the GTS.

Telematics Transceiver (w/ Manual (SOS) Switch) / GTS Display "Telematics"

Body Electrical > Telematics > Trouble Codes

Tip:

This ECU uses the CAN communication system for DTC communication.

Table 26. Telematics Transceiver / GTS Display "Telematics"
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Indication in Meter	DTC Storage Method
U0100	Engine ECU Communication	The telematics transceiver does not receive data from the ECM for 1.5 seconds or more.	The ignition switch is ON for 10 seconds or more.	Turn the ignition switch to ON and wait at least 11.5 seconds.	-	DTC is stored until it is cleared using the GTS.

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

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

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 branch 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 branch does not respond (the ECU or sensor name will not be displayed on the screen).
If an open in a CAN main bus line, a short between the CAN bus lines (CANH and CANL) or a +B or ground short in the CAN bus occurs, DTCs of almost all ECUs (or sensors) on the CAN bus may be output, or a message indicating a communication error may be displayed on the GTS screen. In this case, check the resistance of the CAN bus (steps 5 to 7) first.
Click here
If an open occurs in just one of the lines of a CAN branch, DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.


-			Trouble Mode (Open in Both CAN Branch Lines)
Output ECU		Output DTC	Center Airbag Sensor Communication Stop Mode Click here	Air Conditioning Amplifier Communication Stop Mode Click here	AFS ECU Communication Stop Mode Click here	Audio Receiver Assembly Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	○	-	-
		U0131	-	○	-	-
		U0142	-	○	-	-
		U0155	-	○	-	-
	Headlight Swivel ECU Assembly or Headlight Leveling ECU Assembly*1	U0100	-	-	○	-
		U0129	-	-	○	-
		U0142	-	-	○	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-	○
		U0129	-	-	-	○
		U0140	-	-	-	○
		U0155	-	-	-	○
		U0164	-	○	-	○
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-	-
		U0101	-	-	-	-
		U0120	-	-	-	-
		U0151	○	-	-	-
		U0155	-	-	-	-
		U0164	-	○	-	-
		U023A	-	-	-	-
		U0327	-	-	-	-
	Clearance Warning ECU Assembly*1	U0100	-	-	-	-
		U0101	-	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
		U0131	-	-	-	-
		U0142	-	-	-	-
		U0151	○	-	-	-
		U0155	-	-	-	-
		U0164	-	○	-	-
		U1103	-	-	-	-
V Bus	Engine Stop and Start ECU	U0100	-	-	-	-
		U0121	-	-	-	-
		U0126	-	-	-	-
		U0131	-	-	-	-
		U0140	-	-	-	-
		U0151	○	-	-	-
		U0155	-	-	-	-
		U0164	-	○	-	-
		U1110	-	-	-	-
	ECM (for 1ND-TV)	U0129	-	-	-	-
	ECM (for 1ND-TV)	U1103	-	-	-	-
	ECM (for 1ZR-FAE)	U0129	-	-	-	-
	ECM (for 1NR-FE)	-	-	-	-	-
	ECM (for 1ZR-FE)	-	-	-	-	-
	ECM (for 2ZR-FE)	-	-	-	-	-
	ECM (for 8NR-FTS)	U012200	-	-	-	-
		U012587	○	-	-	-
		U012987	-	-	-	-
		U110387	-	-	-	-
	ECM (for 8NR-FTS) (Cruise Control)	U012287	-	-	-	-
	ECM (for 1WW)*2	U0129	-	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U1110	-	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
		U1103	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Control)	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
		U1103	-	-	-	-
	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0131	-	-	-	-
		U0142	-	-	-	-
		U0151	○	-	-	-
		U0163	-	-	-	○
		U023A	-	-	-	-
	Brake Actuator Assembly*1	U0100	-	-	-	-
		U0123	○	-	-	-
		U0126	-	-	-	-
V Bus	Steering Sensor (Spiral Cable with Sensor Sub-assembly)	-	-	-	-	-
	Pre-crash Safety City Sensor	U0100	-	-	-	-
		U0123	○	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
		U0155	-	-	-	-
	Telematics Transceiver	U0100	-	-	-	-


-			Trouble Mode (Open in Both CAN Branch Lines)
Output ECU		Output DTC	Main Body ECU Communication Stop Mode Click here	Clearance Warning ECU Communication Stop Mode Click here	Engine Stop and Start ECU Communication Stop Mode Click here	DCM Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0131	-	-	-	-
		U0142	○	-	-	-
		U0155	-	-	-	-
	Headlight Swivel ECU Assembly or Headlight Leveling ECU Assembly*1	U0100	-	-	-	-
		U0129	-	-	-	-
		U0142	○	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-	-
		U0129	-	-	-	-
		U0140	○	-	-	-
		U0155	-	-	-	-
		U0164	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	○	-	-	-
		U0101	○	-	-	-
		U0120	○	-	-	-
		U0151	○	-	-	-
		U0155	○	-	-	-
		U0164	○	-	-	-
		U023A	○	-	-	-
		U0327	○	-	-	-
V Bus	Clearance Warning ECU Assembly*1	U0100	-	○	-	-
		U0101	-	○	-	-
		U0126	-	○	-	-
		U0129	-	○	-	-
		U0131	-	○	-	-
		U0142	○	○	-	-
		U0151	-	○	-	-
		U0155	-	○	-	-
		U0164	-	○	-	-
		U1103	-	○	○	-
	Engine Stop and Start ECU	U0100	-	-	○	-
		U0121	-	-	○	-
		U0126	-	-	○	-
		U0131	-	-	○	-
		U0140	○	-	○	-
		U0151	-	-	○	-
		U0155	-	-	○	-
		U0164	-	-	○	-
		U1110	-	○	○	-
	ECM (for 1ND-TV)	U0129	-	-	-	-
	ECM (for 1ND-TV)	U1103	-	-	○	-
	ECM (for 1ZR-FAE)	U0129	-	-	-	-
	ECM (for 1NR-FE)	-	-	-	-	-
	ECM (for 1ZR-FE)	-	-	-	-	-
	ECM (for 2ZR-FE)	-	-	-	-	-
	ECM (for 8NR-FTS)	U012200	-	-	-	-
		U012587	-	-	-	-
		U012987	-	-	-	-
		U110387	-	-	○	-
	ECM (for 8NR-FTS) (Cruise Control)	U012287	-	-	-	-
	ECM (for 1WW)*2	U0129	-	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U1110	-	○	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-	-
		U0142	○	-	-	-
		U0155	-	-	-	-
		U1103	-	-	○	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Control)	U0100	-	-	-	-
		U0140	○	-	-	-
		U0155	-	-	-	-
		U1103	-	-	○	-
V Bus	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0131	-	-	-	-
		U0142	○	-	-	-
		U0151	-	-	-	-
		U0163	-	-	-	-
		U023A	-	-	-	-
	Brake Actuator Assembly*1	U0100	-	-	-	-
		U0123	-	-	-	-
		U0126	-	-	-	-
	Steering Sensor (Spiral Cable with Sensor Sub-assembly)	-	-	-	-	-
	Pre-crash Safety City Sensor	U0100	-	-	-	-
		U0123	-	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
		U0155	-	-	-	-
	Telematics Transceiver	U0100	-	-	-	○


-			Trouble Mode (Open in Both CAN Branch Lines)
Output ECU		Output DTC	Power Steering ECU Communication Stop Mode Click here	Certification ECU Communication Stop Mode Click here	Brake Actuator (Skid Control ECU) Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	○	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Swivel ECU Assembly or Headlight Leveling ECU Assembly*1	U0100	-	-	-
		U0129	-	-	○
		U0142	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0129	-	-	○
		U0140	-	-	-
		U0155	-	-	-
		U0164	-	-	-
V Bus	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-
		U0101	-	-	-
		U0120	-	○	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U023A	-	-	-
		U0327	-	○	-
	Clearance Warning ECU Assembly*1	U0100	-	-	-
		U0101	-	-	-
		U0126	-	-	-
		U0129	-	-	○
		U0131	○	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U1103	-	-	-
	Engine Stop and Start ECU	U0100	-	-	-
		U0121	-	-	○
		U0126	-	-	-
		U0131	○	-	-
		U0140	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U1110	-	-	-
	ECM (for 1ND-TV)	U0129	-	-	○
	ECM (for 1ND-TV)	U1103	-	-	-
	ECM (for 1ZR-FAE)	U0129	-	-	○
	ECM (for 1NR-FE)	-	-	-	-
	ECM (for 1ZR-FE)	-	-	-	-
	ECM (for 2ZR-FE)	-	-	-	-
	ECM (for 8NR-FTS)	U012200	-	-	○
		U012587	-	-	-
		U012987	-	-	○
		U110387	-	-	-
	ECM (for 8NR-FTS) (Cruise Control)	U012287	-	-	○
	ECM (for 1WW)*2	U0129	-	-	○
	Power Steering ECU Assembly	U0100	○	-	-
		U0129	○	-	○
		U1110	○	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	○	-
		U0142	-	○	-
		U0155	-	○	-
		U1103	-	○	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Control)	U0100	-	○	-
		U0140	-	○	-
		U0155	-	○	-
		U1103	-	○	-
V Bus	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	○
		U0131	○	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U023A	-	-	-
	Brake Actuator Assembly*1	U0100	-	-	○
		U0123	-	-	○
		U0126	-	-	○
	Steering Sensor (Spiral Cable with Sensor Sub-assembly)	-	-	-	-
	Pre-crash Safety City Sensor	U0100	-	-	-
		U0123	-	-	-
		U0126	-	-	-
		U0129	-	-	○
		U0155	-	-	-
	Telematics Transceiver	U0100	-	-	-


-			Trouble Mode (Open in Both CAN Branch Lines)
Output ECU		Output DTC	Steering Angle Sensor Communication Stop Mode Click here	Front Camera Module Communication Stop Mode Click here	DLC3
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Headlight Swivel ECU Assembly or Headlight Leveling ECU Assembly*1	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
V Bus	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0129	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U0164	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-
		U0155	-	-	-
		U0164	-	-	-
		U023A	-	○	-
		U0327	-	-	-
	Clearance Warning ECU Assembly*1	U0100	-	-	-
		U0101	-	-	-
		U0126	○	○	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U1103	-	-	-
	Engine Stop and Start ECU	U0100	-	-	-
		U0121	-	-	-
		U0126	○	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U1110	-	-	-
	ECM (for 1ND-TV)	U0129	-	-	-
	ECM (for 1ND-TV)	U1103	-	-	-
	ECM (for 1ZR-FAE)	U0129	-	-	-
	ECM (for 1NR-FE)	-	-	-	-
	ECM (for 1ZR-FE)	-	-	-	-
	ECM (for 2ZR-FE)	-	-	-	-
	ECM (for 8NR-FTS)	U012200	-	-	-
		U012587	-	-	-
		U012987	-	-	-
		U110387	-	-	-
	ECM (for 8NR-FTS) (Cruise Control)	U012287	-	-	-
	ECM (for 1WW)*2	U0129	-	-	-
V Bus	Power Steering ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U1110	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
		U1103	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Control)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U1103	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U023A	-	○	-
	Brake Actuator Assembly*1	U0100	-	-	-
		U0123	-	-	-
		U0126	○	-	-
	Steering Sensor (Spiral Cable with Sensor Sub-assembly)	-	-	-	-
	Pre-crash Safety City Sensor	U0100	-	○	-
		U0123	-	○	-
		U0126	○	○	-
		U0129	-	○	-
		U0155	-	○	-
	Telematics Transceiver	U0100	-	-	-

Tip:

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: DTC U0028 may be stored when communication is lost.


-			Trouble Mode (Open in Both CAN Main Bus Lines)
Output ECU		Output DTC	ECM Communication Stop Mode Click here	No. 1 CAN Junction Connector to No. 3 CAN Junction Connector3 No. 3 CAN Junction Connector to No. 4 CAN Junction Connector4	Combination Meter ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	○	○	-
		U0131	-	-	-
		U0142	-	○	-
		U0155	-	-	○
	Headlight Swivel ECU Assembly or Headlight Leveling ECU Assembly*1	U0100	○	-	-
		U0129	-	-	-
		U0142	-	-	-
	Radio and Display Receiver Assembly*1	U0100	○	○	-
		U0129	-	○	-
		U0140	-	○	-
		U0155	-	-	○
		U0164	-	-	-
V Bus	Main Body ECU (Multiplex Network Body ECU)	U0100	○	-	-
		U0101	○	-	-
		U0120	-	○	-
		U0151	-	○	-
		U0155	-	○	○
		U0164	-	○	-
		U023A	-	○	-
		U0327	-	○	-
	Clearance Warning ECU Assembly*1	U0100	○	○	-
		U0101	○	○	-
		U0126	-	-	-
		U0129	-	○	-
		U0131	-	-	-
		U0142	-	○	-
		U0151	-	-	-
		U0155	-	-	○
		U0164	-	○	-
		U1103	-	-	-
	Engine Stop and Start ECU	U0100	○	○	-
		U0121	-	○	-
		U0126	-	-	-
		U0131	-	-	-
		U0140	-	○	-
		U0151	-	-	-
		U0155	-	-	○
		U0164	-	-	-
		U1110	-	-	-
	ECM (for 1ND-TV)	U0129	○	-	-
	ECM (for 1ND-TV)	U1103	○	○	-
	ECM (for 1ZR-FAE)	U0129	○	-	-
	ECM (for 1NR-FE)	-	-	-	-
	ECM (for 1ZR-FE)	-	-	-	-
	ECM (for 2ZR-FE)	-	-	-	-
	ECM (for 8NR-FTS)	U012200	○	-	-
		U012587	○	○	-
		U012987	○	-	-
		U110387	○	○	-
	ECM (for 8NR-FTS) (Cruise Control)	U012287	○	-	-
	ECM (for 1WW)*2	U0129	○	-	-
	Power Steering ECU Assembly	U0100	○	○	-
		U0129	-	○	-
		U1110	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	○	○	-
		U0142	-	○	-
		U0155	-	-	○
		U1103	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Control)	U0100	○	○	-
		U0140	-	○	-
		U0155	-	-	○
		U1103	-	-	-
V Bus	Combination Meter Assembly	U0100	○	○	○
		U0129	-	○	○
		U0131	-	-	○
		U0142	-	○	○
		U0151	-	-	○
		U0163	-	-	○
		U023A	-	-	○
	Brake Actuator Assembly*1	U0100	○	-	-
		U0123	-	○	-
		U0126	-	○	-
	Steering Sensor (Spiral Cable with Sensor Sub-assembly)	-	-	-	-
	Pre-crash Safety City Sensor	U0100	○	○	-
		U0123	-	-	-
		U0126	-	-	-
		U0129	-	○	-
		U0155	-	-	○
	Telematics Transceiver	U0100	○	○	-

Tip:

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: DTC U0028 may be stored when communication is lost.
*3: for Sedan
*4: except Sedan


-			Trouble Mode (CAN Bus Line Short Circuit or Short to GND)
Output ECU		Output DTC	CANH to CANL	CANH to GND	CANL to GND
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	○	○	○
		U0131	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Headlight Swivel ECU Assembly or Headlight Leveling ECU Assembly*1	U0100	○	○	○
		U0129	○	○	○
		U0142	○	○	○
V Bus	Radio and Display Receiver Assembly*1	U0100	○	○	○
		U0129	○	○	○
		U0140	○	○	○
		U0155	○	○	○
		U0164	○	○	○
	Main Body ECU (Multiplex Network Body ECU)	U0100	○	○	○
		U0101	○	○	○
		U0120	○	○	○
		U0151	○	○	○
		U0155	○	○	○
		U0164	○	○	○
		U023A	○	○	○
		U0327	○	○	○
	Clearance Warning ECU Assembly*1	U0100	○	○	○
		U0101	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0131	○	○	○
		U0142	○	○	○
		U0151	○	○	○
		U0155	○	○	○
		U0164	○	○	○
		U1103	○	○	○
	Engine Stop and Start ECU	U0100	○	○	○
		U0121	○	○	○
		U0126	○	○	○
		U0131	○	○	○
		U0140	○	○	○
		U0151	○	○	○
		U0155	○	○	○
		U0164	○	○	○
		U1110	○	○	○
	ECM (for 1ND-TV)	U0129	○	○	○
	ECM (for 1ND-TV)	U1103	○	○	○
	ECM (for 1ZR-FAE)	U0129	○	○	○
	ECM (for 1NR-FE)	-	-	-	-
	ECM (for 1ZR-FE)	-	-	-	-
	ECM (for 2ZR-FE)	-	-	-	-
	ECM (for 8NR-FTS)	U012200	○	○	○
		U012587	○	○	○
		U012987	○	○	○
		U110387	○	○	○
	ECM (for 8NR-FTS) (Cruise Control)	U012287	○	○	○
	ECM (for 1WW)*2	U0129	○	○	○
	Power Steering ECU Assembly	U0100	○	○	○
		U0129	○	○	○
		U1110	○	○	○
	Certification ECU (Smart Key ECU Assembly)	U0100	○	○	○
		U0142	○	○	○
		U0155	○	○	○
		U1103	○	○	○
V Bus	Certification ECU (Smart Key ECU Assembly) (Power Source Control)	U0100	○	○	○
		U0140	○	○	○
		U0155	○	○	○
		U1103	○	○	○
	Combination Meter Assembly	U0100	○	○	○
		U0129	○	○	○
		U0131	○	○	○
		U0142	○	○	○
		U0151	○	○	○
		U0163	○	○	○
		U023A	○	○	○
	Brake Actuator Assembly*1	U0100	○	○	○
		U0123	○	○	○
		U0126	○	○	○
	Steering Sensor (Spiral Cable with Sensor Sub-assembly)	-	-	-	-
	Pre-crash Safety City Sensor	U0100	○	○	○
		U0123	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0155	○	○	○
	Telematics Transceiver	U0100	○	○	○

Tip:

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: DTC U0028 may be stored when communication is lost.

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

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 branch 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 branch does not respond (the ECU or sensor name will not be displayed on the screen).
If an open in a CAN main bus line, a short between the CAN bus lines (CANH and CANL) or a +B or ground short in the CAN bus occurs, DTCs of almost all ECUs (or sensors) on the CAN bus may be output, or a message indicating a communication error may be displayed on the GTS screen. In this case, check the resistance of the CAN bus (steps 5 to 7) first.
Click here
If an open occurs in just one of the lines of a CAN branch, DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.


-			Trouble Mode (Open in Both CAN Branch Lines)
Output ECU		Output DTC	Center Airbag Sensor Communication Stop Mode Click here	Air Conditioning Amplifier Communication Stop Mode Click here	Audio Receiver Assembly Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	○	-
		U0131	-	○	-
		U0142	-	○	-
		U0155	-	○	-
	Radio and Display Receiver Assembly*1	U0100	-	-	○
		U0129	-	-	○
		U0140	-	-	○
		U0155	-	-	○
		U0164	-	○	○
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	○	-	-
		U0155	-	-	-
		U0164	-	○	-
		U023A	-	-	-
		U0327	-	-	-
	Clearance Warning ECU Assembly*1	U0100	-	-	-
		U0101	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	○	-	-
		U0155	-	-	-
		U0164	-	○	-
		U1103	-	-	-
	Engine Stop and Start ECU	U0100	-	-	-
		U0121	-	-	-
		U0126	-	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0151	○	-	-
		U0155	-	-	-
		U0164	-	○	-
		U1110	-	-	-
	ECM (for 1ND-TV)	U0129	-	-	-
	ECM (for 1ND-TV)	U1103	-	-	-
V Bus	ECM (for 1ZR-FAE)	U0129	-	-	-
	ECM (for 1NR-FE)	-	-	-	-
	ECM (for 8NR-FTS)	U012200	-	-	-
		U012587	○	-	-
		U012987	-	-	-
		U110387	-	-	-
	ECM (for 8NR-FTS) (Cruise Control)	U012287	-	-	-
	ECM (for 1WW)*2	U0129	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U1110	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
		U1103	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Control)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U1103	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	○	-	-
		U0163	-	-	○
		U023A	-	-	-
	Brake Actuator Assembly*1	U0100	-	-	-
		U0123	○	-	-
		U0126	-	-	-
	Steering Sensor (Spiral Cable with Sensor Sub-assembly)	-	-	-	-
	Headlight Swivel ECU Assembly*1	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
	Pre-crash Safety City Sensor	U0100	-	-	-
		U0123	○	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0155	-	-	-


-			Trouble Mode (Open in Both CAN Branch Lines)
Output ECU		Output DTC	Main Body ECU Communication Stop Mode Click here	Clearance Warning ECU Communication Stop Mode Click here	Engine Stop and Start ECU Communication Stop Mode Click here	Power Steering ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0131	-	-	-	○
		U0142	○	-	-	-
		U0155	-	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-	-
		U0129	-	-	-	-
		U0140	○	-	-	-
		U0155	-	-	-	-
		U0164	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	○	-	-	-
		U0101	○	-	-	-
		U0120	○	-	-	-
		U0151	○	-	-	-
		U0155	○	-	-	-
		U0164	○	-	-	-
		U023A	○	-	-	-
		U0327	○	-	-	-
	Clearance Warning ECU Assembly*1	U0100	-	○	-	-
		U0101	-	○	-	-
		U0126	-	○	-	-
		U0129	-	○	-	-
		U0131	-	○	-	○
		U0142	○	○	-	-
		U0151	-	○	-	-
		U0155	-	○	-	-
		U0164	-	○	-	-
		U1103	-	○	○	-
	Engine Stop and Start ECU	U0100	-	-	○	-
		U0121	-	-	○	-
		U0126	-	-	○	-
		U0131	-	-	○	○
		U0140	○	-	○	-
		U0151	-	-	○	-
		U0155	-	-	○	-
		U0164	-	-	○	-
		U1110	-	○	○	-
	ECM (for 1ND-TV)	U0129	-	-	-	-
	ECM (for 1ND-TV)	U1103	-	-	○	-
V Bus	ECM (for 1ZR-FAE)	U0129	-	-	-	-
	ECM (for 1NR-FE)	-	-	-	-	-
	ECM (for 8NR-FTS)	U012200	-	-	-	-
		U012587	-	-	-	-
		U012987	-	-	-	-
		U110387	-	-	○	-
	ECM (for 8NR-FTS) (Cruise Control)	U012287	-	-	-	-
	ECM (for 1WW)*2	U0129	-	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-	○
		U0129	-	-	-	○
		U1110	-	○	-	○
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-	-
		U0142	○	-	-	-
		U0155	○	-	-	-
		U1103	-	-	○	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Control)	U0100	-	-	-	-
		U0140	○	-	-	-
		U0155	-	-	-	-
		U1103	-	-	○	-
	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0131	-	-	-	○
		U0142	○	-	-	-
		U0151	-	-	-	-
		U0163	-	-	-	-
		U023A	-	-	-	-
	Brake Actuator Assembly*1	U0100	-	-	-	-
		U0123	-	-	-	-
		U0126	-	-	-	-
	Steering Sensor (Spiral Cable with Sensor Sub-assembly)	-	-	-	-	-
	Headlight Swivel ECU Assembly*1	U0100	-	-	-	-
		U0129	-	-	-	-
		U0142	○	-	-	-
	Pre-crash Safety City Sensor	U0100	-	-	-	-
		U0123	-	-	-	-
		U0126	-	-	-	-
		U0129	-	-	-	-
		U0155	-	-	-	-


-			Trouble Mode (Open in Both CAN Branch Lines)
Output ECU		Output DTC	Certification ECU Communication Stop Mode Click here	Brake Actuator (Skid Control ECU) Communication Stop Mode Click here	Steering Angle Sensor Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0129	-	○	-
		U0140	-	-	-
		U0155	-	-	-
		U0164	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-
		U0101	-	-	-
		U0120	○	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U023A	-	-	-
		U0327	○	-	-
	Clearance Warning ECU Assembly*1	U0100	-	-	-
		U0101	-	-	-
		U0126	-	-	-
		U0129	-	○	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U1103	-	-	-
	Engine Stop and Start ECU	U0100	-	-	-
		U0121	-	○	-
		U0126	-	-	○
		U0131	-	-	-
		U0140	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U1110	-	-	-
	ECM (for 1ND-TV)	U0129	-	○	-
	ECM (for 1ND-TV)	U1103	-	-	-
V Bus	ECM (for 1ZR-FAE)	U0129	-	○	-
	ECM (for 1NR-FE)	-	-	-	-
	ECM (for 8NR-FTS)	U012200	-	○	-
		U012587	-	-	-
		U012987	-	○	-
		U110387	-	-	-
	ECM (for 8NR-FTS) (Cruise Control)	U012287	-	○	-
	ECM (for 1WW)*2	U0129	-	○	-
	Power Steering ECU Assembly	U0100	-	-	-
		U0129	-	○	-
		U1110	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	○	-	-
		U0142	○	-	-
		U0155	○	-	-
		U1103	○	-	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Control)	U0100	○	-	-
		U0140	○	-	-
		U0155	○	-	-
		U1103	○	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	○	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U023A	-	-	-
	Brake Actuator Assembly*1	U0100	-	○	-
		U0123	-	○	-
		U0126	-	○	○
	Steering Sensor (Spiral Cable with Sensor Sub-assembly)	-	-	-	-
	Headlight Swivel ECU Assembly*1	U0100	-	-	-
		U0129	-	○	-
		U0142	-	-	-
	Pre-crash Safety City Sensor	U0100	-	-	-
		U0123	-	-	-
		U0126	-	-	○
		U0129	-	○	-
		U0155	-	-	-


-			Trouble Mode (Open in Both CAN Branch Lines)
Output ECU		Output DTC	AFS ECU Communication Stop Mode Click here	Front Camera Module Communication Stop Mode Click here	DLC3
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0129	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U0164	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U023A	-	○	-
		U0327	-	-	-
	Clearance Warning ECU Assembly*1	U0100	-	-	-
		U0101	-	-	-
		U0126	-	○	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U1103	-	-	-
	Engine Stop and Start ECU	U0100	-	-	-
		U0121	-	-	-
		U0126	-	-	-
		U0131	-	-	-
		U0140	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U0164	-	-	-
		U1110	-	-	-
	ECM (for 1ND-TV)	U0129	-	-	-
	ECM (for 1ND-TV)	U1103	-	-	-
	ECM (for 1ZR-FAE)	U0129	-	-	-
	ECM (for 1NR-FE)	-	-	-	-
V Bus	ECM (for 8NR-FTS)	U012200	-	-	-
		U012587	-	-	-
		U012987	-	-	-
		U110387	-	-	-
	ECM (for 8NR-FTS) (Cruise Control)	U012287	-	-	-
	ECM (for 1WW)*2	U0129	-	-	-
	Power Steering ECU Assembly	U0100	-	-	-
		U0129	-	-	-
		U1110	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
		U1103	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Control)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U1103	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0131	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U023A	-	○	-
	Brake Actuator Assembly*1	U0100	-	-	-
		U0123	-	-	-
		U0126	-	-	-
	Steering Sensor (Spiral Cable with Sensor Sub-assembly)	-	-	-	-
	Headlight Swivel ECU Assembly*1	U0100	○	-	-
		U0129	○	-	-
		U0142	○	-	-
	Pre-crash Safety City Sensor	U0100	-	○	-
		U0123	-	○	-
		U0126	-	○	-
		U0129	-	○	-
		U0155	-	○	-

Tip:

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: DTC U0028 may be stored when communication is lost.


-			Trouble Mode (Open in Both CAN Main Bus Lines)
Output ECU		Output DTC	ECM Communication Stop Mode Click here	No. 1 CAN Junction Connector to No. 3 CAN Junction Connector3 No. 3 CAN Junction Connector to No. 4 CAN Junction Connector4	Combination Meter ECU Communication Stop Mode Click here
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	○	○	-
		U0131	-	-	-
		U0142	-	○	-
		U0155	-	-	○
	Radio and Display Receiver Assembly*1	U0100	○	○	-
		U0129	-	○	-
		U0140	-	○	-
		U0155	-	-	○
		U0164	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	○	-	-
		U0101	○	-	-
		U0120	-	○	-
		U0151	-	○	-
		U0155	-	○	○
		U0164	-	○	-
		U023A	-	○	-
		U0327	-	○	-
	Clearance Warning ECU Assembly*1	U0100	○	-	-
		U0101	○	-	-
		U0126	-	○	-
		U0129	-	-	-
		U0131	-	○	-
		U0142	-	-	-
		U0151	-	○	-
		U0155	-	○	○
		U0164	-	○	-
		U1103	-	-	-
V Bus	Engine Stop and Start ECU	U0100	○	-	-
		U0121	-	-	-
		U0126	-	○	-
		U0131	-	○	-
		U0140	-	-	-
		U0151	-	○	-
		U0155	-	○	○
		U0164	-	○	-
		U1110	-	-	-
	ECM (for 1ND-TV)	U0129	○	-	-
	ECM (for 1ND-TV)	U1103	○	-	-
	ECM (for 1ZR-FAE)	U0129	○	-	-
	ECM (for 1NR-FE)	-	-	-	-
	ECM (for 8NR-FTS)	U012200	○	-	-
		U012587	○	○	-
		U012987	○	-	-
		U110387	○	-	-
	ECM (for 8NR-FTS) (Cruise Control)	U012287	○	-	-
	ECM (for 1WW)*2	U0129	○	-	-
	Power Steering ECU Assembly	U0100	○	○	-
		U0129	-	○	-
		U1110	-	-	-
	Certification ECU (Smart Key ECU Assembly)	U0100	○	○	-
		U0142	-	○	-
		U0155	-	-	○
		U1103	-	○	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Control)	U0100	○	○	-
		U0140	-	○	-
		U0155	-	-	○
		U1103	-	○	-
	Combination Meter Assembly	U0100	○	○	○
		U0129	-	○	○
		U0131	-	-	○
		U0142	-	○	○
		U0151	-	-	○
		U0163	-	-	○
		U023A	-	-	○
	Brake Actuator Assembly*1	U0100	○	-	-
		U0123	-	○	-
		U0126	-	○	-
	Steering Sensor (Spiral Cable with Sensor Sub-assembly)	-	-	-	-
	Headlight Swivel ECU Assembly*1	U0100	○	-	-
		U0129	-	-	-
		U0142	-	-	-
	Pre-crash Safety City Sensor	U0100	○	○	-
		U0123	-	-	-
		U0126	-	-	-
		U0129	-	○	-
		U0155	-	-	○

Tip:

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: DTC U0028 may be stored when communication is lost.
*3: for Sedan
*4: except Sedan


-			Trouble Mode (CAN Bus Line Short Circuit or Short to GND)
Output ECU		Output DTC	CANH to CANL	CANH to GND	CANL to GND
V Bus	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	○	○	○
		U0131	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Radio and Display Receiver Assembly*1	U0100	○	○	○
		U0129	○	○	○
		U0140	○	○	○
		U0155	○	○	○
		U0164	○	○	○
	Main Body ECU (Multiplex Network Body ECU)	U0100	○	○	○
		U0101	○	○	○
		U0120	○	○	○
		U0151	○	○	○
		U0155	○	○	○
		U0164	○	○	○
		U023A	○	○	○
		U0327	○	○	○
	Clearance Warning ECU Assembly*1	U0100	○	○	○
		U0101	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0131	○	○	○
		U0142	○	○	○
		U0151	○	○	○
		U0155	○	○	○
		U0164	○	○	○
		U1103	○	○	○
V Bus	Engine Stop and Start ECU	U0100	○	○	○
		U0121	○	○	○
		U0126	○	○	○
		U0131	○	○	○
		U0140	○	○	○
		U0151	○	○	○
		U0155	○	○	○
		U0164	○	○	○
		U1110	○	○	○
	ECM (for 1ND-TV)	U0129	○	○	○
	ECM (for 1ND-TV)	U1103	○	○	○
	ECM (for 1ZR-FAE)	U0129	○	○	○
	ECM (for 1NR-FE)	-	-	-	-
	ECM (for 8NR-FTS)	U012200	○	○	○
		U012587	○	○	○
		U012987	○	○	○
		U110387	○	○	○
	ECM (for 8NR-FTS) (Cruise Control)	U012287	○	○	○
	ECM (for 1WW)*2	U0129	○	○	○
	Power Steering ECU Assembly	U0100	○	○	○
		U0129	○	○	○
		U1110	○	○	○
	Certification ECU (Smart Key ECU Assembly)	U0100	○	○	○
		U0142	○	○	○
		U0155	○	○	○
		U1103	○	○	○
	Certification ECU (Smart Key ECU Assembly) (Power Source Control)	U0100	○	○	○
		U0140	○	○	○
		U0155	○	○	○
		U1103	○	○	○
	Combination Meter Assembly	U0100	○	○	○
		U0129	○	○	○
		U0131	○	○	○
		U0142	○	○	○
		U0151	○	○	○
		U0163	○	○	○
		U023A	○	○	○
	Brake Actuator Assembly*1	U0100	○	○	○
		U0123	○	○	○
		U0126	○	○	○
	Steering Sensor (Spiral Cable with Sensor Sub-assembly)	-	-	-	-
	Headlight Swivel ECU Assembly*1	U0100	○	○	○
		U0129	○	○	○
		U0142	○	○	○
	Pre-crash Safety City Sensor	U0100	○	○	○
		U0123	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0155	○	○	○

Tip:

○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: DTC U0028 may be stored when communication is lost.

CAN BUS WAVEFORMS
Tip:
- These waveforms are 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.
  Click here
- If a waveform is not similar to one of the following 3 patterns (Group 1), then an open in a CAN main bus line, an open in a CAN branch line, or a short between a CAN line (CANH or CANL) and ground is suspected (Group 2).
- Wiggle the connector and wire harness to check if the waveform changes.
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 present from an ECU or sensor connected to a CAN branch with an open circuit in both lines. (Waveforms from other ECUs or sensors are normal.)
    - Because this waveform is similar to a normal waveform, instead of using the waveform, the malfunctioning part can be narrowed down by performing a CAN bus check.
  3. Short between the CAN bus lines (CANH and CANL)
    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 line (CANH)
    Tip:
    - An abnormal waveform is output from an ECU with an open in one of its CAN branch lines. Because this abnormal output interferes with the signals from other ECUs, the output of other ECUs will also appear abnormal.
    - Narrow down the malfunctioning part by checking DTCs or performing a CAN bus check, or by checking waveform changes when ECUs or sensors are disconnected. The waveform will change to one for an open in both sides of a CAN branch when the ECU or sensor with an open CAN branch line is disconnected.
  2. Open in a CAN branch line (CANL)
    Tip:
    - An abnormal waveform is output from an ECU with an open in one of its CAN branch lines. Because this abnormal output interferes with the signals from other ECUs, the output of other ECUs will also appear abnormal.
    - Narrow down the malfunctioning part by checking DTCs or performing a CAN bus check, or by checking waveform changes when ECUs or sensors are disconnected. The waveform will change to one for an open in both sides of a CAN branch when the ECU or sensor with an open CAN branch line is disconnected.
  3. Open in a CAN main bus line (CANH)
    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 bus line can be confirmed by measuring the resistance between the CANH and CANL terminals of any CAN branch.
  4. Short between a CAN bus line (CANH) and ground
    Tip:
    - Narrow down the shorted part by checking for waveform changes when disconnecting connectors from the CAN junction connectors or when disconnecting ECUs or sensors.
    - A short to ground in the CANH line can be confirmed by measuring the resistance between CANH and ground using an ohmmeter.
  5. Short between a CAN bus line (CANL) and ground
    Tip:
    - Narrow down the shorted part by checking for waveform changes when disconnecting connectors from the CAN junction connectors or when disconnecting ECUs or sensors.
    - A short to ground in the CANL line can be confirmed by measuring the resistance between CANL and ground using an ohmmeter.

DATA SENDING/RECEIVING TABLE

Data sending/receiving table

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 by (Can be Checked in the Data List)	Data Received by (Cannot be Checked in the Data List)	Relevant Data List Item [Selected System]
Engine speed	ECM	Brake actuator assembly Power steering ECU assembly Combination meter assembly Certification ECU (smart key ECU assembly) Engine stop and start ECU	Airbag sensor assembly Air conditioning amplifier assembly Main body ECU (multiplex network body ECU) Radio and display receiver assembly Clearance warning ECU assembly	Engine Speed [Engine and ECT] (except 8NR-FTS) Engine Speed [Engine] (for 8NR-FTS) Engine Revolutions [ABS/VSC/TRC] Engine Revolution [EMPS] Engine Rpm [Combination Meter] Engine Speed [Starting Control] Engine Spd (ECM) [Stop and Start]
Accelerator position	ECM (1NR-FE/1ZR-FAE/1ZR-FE/2ZR-FE/8NR-FTS)	Brake actuator assembly Engine stop and start ECU	Pre-crash safety city sensor	Accelerator Position [Engine and ECT] (except 8NR-FTS) Accelerator Position [Engine] (for 8NR-FTS) Accelerator Opening Angle % [ABS/VSC/TRC] Accelerator Position [Stop and Start]
Accel position	ECM (1ND-TV/1WW)	Brake actuator assembly Engine stop and start ECU	Pre-crash safety city sensor	Accel Position [Engine and ECT] Accelerator Opening Angle % [ABS/VSC/TRC] Accelerator Position [Stop and Start]
Shift position	ECM (1NR-FE/1WW)	Certification ECU (smart key ECU assembly) Radio and display receiver assembly Engine stop and start ECU	Airbag sensor assembly Main body ECU (multiplex network body ECU) Combination meter assembly Clearance warning ECU assembly Pre-crash safety city sensor	Shift P Signal [Power Source Control] Reverse Signal [Navigation System] Neutral Switch [Stop and Start]
Shift position	ECM (1ND-TV/1ZR-FAE/1ZR-FE/2ZR-FE/8NR-FTS)	Certification ECU (smart key ECU assembly) Radio and display receiver assembly Engine stop and start ECU	Airbag sensor assembly Main body ECU (multiplex network body ECU) Combination meter assembly Clearance warning ECU assembly Pre-crash safety city sensor	Neutral Position SW Signal [Engine and ECT] (except 8NR-FTS) Neutral Position SW [Engine] (for 8NR-FTS) Shift P Signal [Power Source Control] Reverse Signal [Navigation System] Neutral Switch [Stop and Start]
Engine coolant temperature	ECM	Air conditioning amplifier assembly Combination meter assembly Engine stop and start ECU	-	Coolant Temp [Engine and ECT] (except 8NR-FTS) Coolant Temperature [Engine] (for 8NR-FTS) Engine Coolant Temp [Air Conditioner] Coolant Temperature [Combination Meter] Coolant Temp [Stop and Start]
Vehicle speed	Brake actuator assembly	ECM Combination meter assembly*3 Power steering ECU assembly Engine stop and start ECU Radio and display receiver assembly	Airbag sensor assembly Clearance warning ECU assembly Pre-crash safety city sensor	Vehicle Speed [ABS/VSC/TRC] Vehicle Speed [Engine and ECT] (except 8NR-FTS) Vehicle Speed [Engine] (for 8NR-FTS) Vehicle Speed Meter [Combination Meter] Meter Vehicle Velocity [EMPS] Vehicle Spd1 (ABS/VSC) [Stop and Start] Vehicle Speed [Navigation System]
Vehicle speed	Combination meter assembly*3	Certification ECU (smart key ECU assembly)	Air conditioning amplifier assembly Main body ECU (multiplex network body ECU)	Vehicle Speed Meter [Combination Meter] Vehicle Speed Signal [Power Source Control]
Wheel speed	Brake actuator assembly	Headlight swivel ECU assembly Power steering ECU assembly Headlight leveling ECU assembly	ECM Engine stop and start ECU Clearance warning ECU assembly Pre-crash safety city sensor	FR Wheel Speed [ABS/VSC/TRC] FL Wheel Speed [ABS/VSC/TRC] RR Wheel Speed [ABS/VSC/TRC] RL Wheel Speed [ABS/VSC/TRC] FR Wheel Speed [AFS] FL Wheel Speed [AFS] Wheel Speed Right [EMPS] Wheel Speed Left [EMPS] Front Right Wheel Speed Value [HL AutoLeveling] Front Left Wheel Speed Value [HL AutoLeveling]
Ambient temperature	Air conditioning amplifier assembly	ECM (1NR-FE/1ZR-FAE/1ZR-FE/1WW/2ZR-FE/8NR-FTS) Engine stop and start ECU	Main body ECU (multiplex network body ECU) Clearance warning ECU assembly Pre-crash safety city sensor	Ambient Temp Sensor [Air Conditioner] Ambient Temp for A/C [Engine and ECT] (for 1ZR-FAE, 1ZR-FE or 2ZR-FE) Ambient Temperature [Engine and ECT] (for 1NR-FE or 1WW) Ambient Temp for A/C [Engine] (for 8NR-FTS) Ambient Temp Sensor [Stop and Start]
Driver door courtesy switch	Main body ECU (multiplex network body ECU)	Engine stop and start ECU	ECM Certification ECU (smart key ECU assembly) Combination meter assembly*2	FL Door Courtesy SW [Main Body]4 FR Door Courtesy SW [Main Body]5 D Courtesy Switch Signal [Stop and Start]
Ignition switch condition	Main body ECU (multiplex network body ECU)	-	Certification ECU (smart key ECU assembly)*1	IG SW [Main Body]
Steering angle sensor	Steering sensor (spiral cable with sensor sub-assembly)	Brake actuator assembly Power steering ECU assembly	Airbag sensor assembly Clearance warning ECU assembly Engine stop and start ECU Pre-crash safety city sensor	Steering Angle Sensor [ABS/VSC/TRC] Steering Angle [EMPS]
Yaw rate sensor	Airbag sensor assembly	Brake actuator assembly	Clearance warning ECU assembly Headlight swivel ECU assembly Power steering ECU assembly Pre-crash safety city sensor	Yaw Rate Sensor [ABS/VSC/TRC]
Deceleration sensor	Airbag sensor assembly	Brake actuator assembly Engine stop and start ECU	ECM Clearance warning ECU assembly Power steering ECU assembly Pre-crash safety city sensor	Deceleration Sensor [ABS/VSC/TRC] Deceleration Sensor2 [ABS/VSC/TRC] Dec Sensor Calibration [Stop and Start]
Power steering assist current value	Power steering ECU assembly	Engine stop and start ECU	Clearance warning ECU assembly	Motor Actual Current [EMPS] EPS Load [Stop and Start]
Eco drive control mode	Engine stop and start ECU	Power steering ECU assembly	ECM Brake actuator assembly Air conditioning amplifier assembly Radio and display receiver assembly Certification ECU (smart key ECU assembly) Clearance warning ECU assembly	Stop&Start of Eng State [Stop and Start] Stop&Start Ctrl Mode [EMPS]
Side turn signal	Combination meter assembly	-	Clearance warning ECU assembly Pre-crash safety city sensor	-
Brake actuator assembly power source voltage*1	Brake actuator assembly	-	-	IG1 Voltage Value [ABS/VSC/TRC]
Power steering ECU assembly power source voltage*1	Power steering ECU assembly	-	-	IG Power Supply [EMPS]
Driver door touch sensor*1	Certification ECU (smart key ECU assembly)	-	-	D-Door Touch Sensor [Entry&Start]
ECM power source voltage*1	ECM	-	-	Battery Voltage [Engine and ECT] (except 8NR-FTS) Battery Voltage [Engine] (for 8NR-FTS)
Combination meter assembly power source voltage*1	Combination meter assembly	-	-	+B Voltage Value [Combination Meter]
Solar sensor*1	Air conditioning amplifier assembly	-	-	Solar Sensor (D Side) [Air Conditioner]
Headlight swivel ECU assembly power source voltage*1	Headlight swivel ECU assembly	-	-	+B [AFS]
Headlight leveling ECU assembly power source voltage*1	Headlight leveling ECU assembly	-	-	+B [HL AutoLeveling]
Engine stop and start ECU power source voltage*1	Engine stop and start ECU	-	-	Battery Voltage [Stop and Start]
Radio and display receiver assembly power source voltage*1	Radio and display receiver assembly	-	-	Battery Voltage [Navigation System]

*1: Whether the ECU that sends data is functioning or not can be judged by using the GTS to check items such as switches or sensors that send signals to the ECU via direct lines.

*2: Although the received contents cannot be checked in the Data List, whether or not the data is received normally can be checked by observing the combination meter.

*3: The combination meter assembly receives a vehicle speed signal from the brake actuator assembly and sends the signal to other ECUs.

*4: for LHD

*5: for RHD

Details of relevant Data List items (Selected system: Engine and ECT) (for 1ZR-FAE)

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.

Note:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
The actual values may differ from the values listed in the chart under "Results of real-vehicle check" due to climate, weather conditions, etc.

Tip:

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

Warm up the engine.
Turn the A/C switch off.
Turn the ignition switch off.
Connect the 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.

Powertrain > Engine and ECT > Data List


Tester Display	Measurement Item	Range	Normal Condition	Reference Value	Diagnostic Note
Vehicle Speed	Vehicle speed	Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Actual vehicle speed	-	This is the current vehicle speed. The vehicle speed is detected using the wheel speed sensors. Vehicle speed data is delayed when it is displayed. Therefore, even if the vehicle speed listed in the freeze frame data is 0 km/h (0 mph), this does not always mean that the malfunction occurred when the vehicle was stopped. To accurately confirm whether the vehicle was stopped or not, use "SPD (NO)", which is the CVT output speed (for CVT models).
Engine Speed	Engine speed	Min.: 0 rpm, Max.: 16383 rpm	600 to 700 rpm: Idling (for CVT models) 580 to 680 rpm: Idling (for manual transaxle models)	Idling (engine warmed up and A/C off): 747 rpm	When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed.
Coolant Temp	Coolant temperature	Min.: -40°C (-40°F), Max.: 140°C (284°F)	75 to 100°C (167 to 212°F): After warming up	-	This is the engine coolant temperature. Tip: After warming up the engine, the engine coolant temperature is 75 to 100°C (167 to 212°F). After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature are approximately equal. If the value is -40°C (-40°F), or 140°C (284°F), the sensor circuit is open or shorted. Check if the engine overheats when the value indicates 140°C (284°F).
Battery Voltage	Battery voltage	Min.: 0 V, Max.: 65.535 V	11 to 14 V: Idling	Ignition switch ON: 12.734 V Cranking: 10.839 V Idling (engine warmed up): 14.101 V	If 11 V or less, characteristics of some electrical components may change.
Accelerator Position	Accelerator pedal position	Min.: 0%, Max.: 399.9%	Actual accelerator pedal position	Ignition switch ON: 0.0% (accelerator pedal fully released) Ignition switch ON: 100.0% (accelerator pedal fully depressed)	This is the accelerator pedal position defined using the learned fully released position (sensor output) of accelerator pedal position sensor No. 1 as 0% and the fully depressed position as 100%.
Neutral Position SW Signal	Park/Neutral position switch status	ON or OFF	ON: Shift lever in P or N	-	This item is displayed only CVT models.
Ambient Temp for A/C	Ambient temperature for A/C	Min.: -40°C (-40°F), Max.: 215°C (419°F)	-	-	-

Details of relevant Data List items (Selected system: Engine and ECT) (for 1ZR-FE)

Tip:

Note:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
The actual values may differ from the values listed in the chart under "Reference Value" due to climate, weather conditions, etc.

Tip:

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

Warm up the engine.
Turn the A/C switch off.
Turn the ignition switch off.
Connect the 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	This is the current vehicle speed. The vehicle speed is detected using the wheel speed sensors. Vehicle speed data is delayed when it is displayed. Therefore, even if the vehicle speed listed in the freeze frame data is 0 km/h (0 mph), this does not always mean that the malfunction occurred when the vehicle was stopped. To accurately confirm whether the vehicle was stopped or not, use "SPD (NOUT)", which is the CVT output speed (for CVT models).
Engine Speed	Engine speed	Min.: 0 rpm, Max.: 16383 rpm	600 to 700 rpm: Idling	When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed.
Coolant Temp	Coolant temperature	Min.: -40°C (-40°F), Max.: 140°C (284°F)	75 to 100°C (167 to 212°F): After warming up	This is the engine coolant temperature. Tip: After warming up the engine, the engine coolant temperature is 75 to 100°C (167 to 212°F). After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature are approximately equal. If the value is -40°C (-40°F), or higher than 135°C (275°F), the sensor circuit is open or shorted. Check if the engine overheats when the value indicates higher than 135°C (275°F).
Battery Voltage	Battery voltage	Min.: 0 V, Max.: 65.535 V	11 to 14 V: Idling	If 11 V or less, characteristics of some electrical components may change.
Accelerator Position	Accelerator pedal position	Min.: 0%, Max.: 399.9%	Actual accelerator pedal position	This is the accelerator pedal position defined using the learned fully released position (sensor output) of accelerator pedal position sensor No. 1 as 0% and the fully depressed position as 100%.
Neutral Position SW Signal	Park/Neutral position switch status	ON or OFF	ON: Shift lever in P or N	This item is display only CVT models.
Ambient Temp for A/C	Ambient temperature for A/C	Min.: -40°C (-40°F), Max.: 215°C (419°F)	-	-

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

Tip:

Note:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
The actual values may differ from the values listed in the chart under "Reference Value" due to climate, weather conditions, etc.

Tip:

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

Warm up the engine.
Turn the A/C switch off.
Turn the ignition switch off.
Connect the 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	Stored as Freeze Frame Data: Yes This is the current vehicle speed. The vehicle speed is detected using the wheel speed sensors. Vehicle speed data is delayed when it is displayed. Therefore, even if the vehicle speed listed in the freeze frame data is 0 km/h (0 mph), this does not always mean that the malfunction occurred when the vehicle was stopped. To accurately confirm whether the vehicle was stopped or not, use "SPD (NOUT)", which is the CVT output speed.
Engine Speed	Engine speed	Min.: 0 rpm, Max.: 16383 rpm	600 to 700 rpm: Idling	Stored as Freeze Frame Data: Yes When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed.
Coolant Temp	Coolant temperature	Min.: -40°C (-40°F), Max.: 140°C (284°F)	75 to 100°C (167 to 212°F): After warming up	Stored as Freeze Frame Data: Yes This is the engine coolant temperature. Tip: After warming up the engine, the engine coolant temperature is 75 to 100°C (167 to 212°F). After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature are approximately equal. If the value is -40°C (-40°F), or 140°C (284°F), the sensor circuit is open or shorted. Check if the engine overheats when the value indicates 140°C (284°F).
Battery Voltage	Battery voltage	Min.: 0 V, Max.: 65.535 V	11 to 14 V: Idling	Stored as Freeze Frame Data: Yes If 11 V or less, characteristics of some electrical components may change.
Accelerator Position	Accelerator pedal position	Min.: 0%, Max.: 399.9%	Actual accelerator pedal position	Stored as Freeze Frame Data: No This is the accelerator pedal position defined using the learned fully released position (sensor output) of accelerator pedal position sensor No. 1 as 0% and the fully depressed position as 100%.
Neutral Position SW Signal	Park/Neutral position switch status	ON or OFF	ON: Shift lever in P or N	Stored as Freeze Frame Data: Yes
Ambient Temp for A/C	Ambient temperature for A/C	Min.: -40°C (-40°F), Max.: 215°C (419°F)	-	Stored as Freeze Frame Data: Yes

Details of relevant Data List items (Selected system: Engine and ECT) (for 1NR-FE)

Tip:

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:

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

Warm up the engine.
Turn the A/C switch off.
Turn the ignition switch off.
Connect the 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	Stored as Freeze Frame Data: Yes This is the current vehicle speed. The vehicle speed is detected using the wheel speed sensors. Vehicle speed data is delayed when it is displayed. Therefore, even if the vehicle speed listed in the freeze frame data is 0 km/h (0 mph), this does not always mean that the malfunction occurred when the vehicle was stopped.
Engine Speed	Engine speed	Min.: 0 rpm, Max.: 16383 rpm	600 to 700 rpm: Idling with warm engine, shift lever in neutral, A/C off	Stored as Freeze Frame Data: Yes When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed.
Coolant Temp	Coolant temperature	Min.: -40°C (-40°F), Max.: 140°C (284°F)	75 to 100°C (167 to 212°F): After warming up	Stored as Freeze Frame Data: Yes This is the engine coolant temperature. Tip: After warming up the engine, the engine coolant temperature is 75 to 100°C (167 to 212°F). After a long soak, the engine coolant temperature, intake air temperature and ambient temperature are approximately equal. If the value is -40°C (-40°F), or 140°C (284°F), the sensor circuit is open or shorted. Check if the engine overheats when the value indicates 140°C (284°F).
Ambient Temperature	Ambient temperature	Min.: -40°C (-40°F), Max.: 215°C (419°F)	Equivalent to ambient air temperature	Stored as Freeze Frame Data: Yes
Battery Voltage	Battery voltage	Min.: 0 V, Max.: 65.535 V	11 to 14 V: Idling	Stored as Freeze Frame Data: Yes If 11 V or less, characteristics of some electrical components may change.
Accelerator Position	Accelerator pedal position	Min.: 0%, Max.: 399.9%	Actual accelerator pedal position	Stored as Freeze Frame Data: No This is the accelerator pedal position defined using the learned fully released position (sensor output) of accelerator pedal position sensor No. 1 as 0% and the fully depressed position as 100%.

Details of relevant Data List items (Selected system: Engine and ECT) (for 1ND-TV)

Tip:

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:

When reading values of the Data List, confirm that PM regeneration is not activated (value of "After Injection Period" is 0) by entering the following menus: Powertrain / Engine and ECT / Data List / After Injection Period.
If PM regeneration is activated (value of "After Injection Period" is not 0), drive the vehicle until PM regeneration is complete (value of "After Injection Period" becomes 0).
When idling, EGR cut occurs under either of the following conditions:
- PM regeneration is activated.
- Idling time is long (approximately 20 minutes or more).
  If EGR is cut off when idling and PM regeneration is not activated, when the vehicle is driven in 4th gear between 90 and 100 km/h (56 and 62 mph) for 30 minutes, EGR resumes.

Warm up the engine.
Turn the ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Start the engine.
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.

Powertrain > Engine and ECT > Data List


Tester Display	Measurement Item	Range	Normal Condition	Reference Value	Diagnostic Note
Vehicle Speed	Vehicle speed	Min.: 0 km/h, Max.: 255 km/h	Actual vehicle speed	-	Cause of Out of Range: Speed sensor Speed sensor circuit
Engine Speed	Engine speed	Min.: 0 rpm, Max.: 16383 rpm	Idling: 720 to 820 rpm	Idling ("Coolant Temp" = 77°C [171°F]): 770 rpm	When the crankshaft position sensor is malfunctioning, "Engine speed" is approximately 0 or varies greatly from the actual engine speed. Cause of Out of Range: Crankshaft position sensor Crankshaft position sensor circuit
Coolant Temp	Engine coolant temperature	Min.: -40°C, Max.: 140°C	After warming up engine: 75 to 100°C (167 to 212°F)	After warming up engine: 75°C (167°F)	After a long soak, the coolant temperature, intake air temperature, and ambient air temperature are approximately equal. If the value is 30°C (-22°F) or less or 120°C (248°F) or more, the sensor circuit is open or shorted. Cause of Out of Range: Engine coolant temperature sensor Thermostat Symptoms when out of range: Difficult starting when engine is cold, rough idle, black smoke, lack of power
Battery Voltage	Battery voltage	Min.: 0 V, Max.: 65.535 V	Ignition switch ON: 11 to 14 V	Ignition switch ON: 12.080 V Idling: 13.980 V	If 11 V or less, characteristics of some electrical components change. Symptoms when out of range: If 5 V or less, starting becomes difficult
Accel Position	Accelerator position status	Min.: 0%, Max.: 100%	Accelerator pedal released: 0% Accelerator pedal fully depressed: 100%	Ignition switch ON: 0.00% (accelerator pedal released) Running without load (2500 rpm): 35.29% Running without load (4000 rpm): 65.88%	"Accel Position" is the accelerator opening angle (%) for engine control use.

Details of relevant Data List items (Selected system: Engine) (for 8NR-FTS)

Tip:

Note:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
The actual values may differ from the values listed in the chart under "Reference Value" due to climate, weather conditions, etc.
The values listed under "Reference Value" are those of an inspection performed in NORMAL mode. The actual values may differ if inspected in SPORT mode.

Tip:

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

Warm up the engine.
Turn the A/C switch off.
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	Reference Value	Diagnostic Note
Vehicle Speed	Vehicle speed	Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Actual vehicle speed	-	This is the current vehicle speed. The vehicle speed is detected using the wheel speed sensors. There is a delay in when the vehicle speed data is displayed. Therefore, even if the vehicle speed listed in the freeze frame data is 0 km/h (0 mph), this does not always mean that the malfunction occurred when the vehicle was stopped.
Engine Speed	Engine speed	Min.: 0 rpm, Max.: 16383 rpm	680 to 780 rpm: Idling (shift lever in N, engine warmed up and A/C off) (CVT models) 600 to 700 rpm: Idling (shift lever in neutral, engine warmed up and A/C off) (M/T models)	Idling (engine warmed up and A/C off): 710 rpm (CVT models)	When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed.
Coolant Temperature	Engine coolant temperature	Min.: -40°C (-40°F), Max.: 140°C (284°F)	75 to 100°C (167 to 212°F): After warming up	-	This is the engine coolant temperature. Tip: After warming up the engine, the engine coolant temperature will be 75 to 100°C (167 to 212°F). After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature will be approximately equal. If the value is -40°C (-40°F), or 140°C (284°F), the sensor circuit is open or shorted. Check if the engine overheats if the value indicated is higher than 140°C (284°F).
Battery Voltage	Battery voltage	Min.: 0 V, Max.: 65.5 V	11 to 14 V: Idling	Ignition switch ON: 12.617 V Cranking: 10.488 V Idling (engine warmed up): 14.062 V	If 11 V or less, characteristics of some electrical components may change.
Accelerator Position	Accelerator pedal position	Min.: 0%, Max.: 399.9%	Actual accelerator pedal position	Ignition switch ON, accelerator pedal fully released: 0.0% Ignition switch ON, accelerator pedal fully depressed: 100.0%	This is the accelerator pedal position defined using the learned fully released position (sensor output) of No. 1 accelerator pedal position sensor as 0% and the fully depressed position as 100%.
Neutral Position SW	Park/Neutral position switch status	ON or OFF	ON: Shift lever in P or N (CVT models) ON: Clutch pedal depressed (M/T models)	-	-
Ambient Temp for A/C	Ambient temperature for A/C	Min.: -40°C (-40°F), Max.: 215°C (419°F)	-	-	-

Details of relevant Data List items (Selected system: Engine and ECT) (for 1WW)

Note:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
The actual values may differ from the values listed in the chart under "Reference Value" due to climate, weather conditions, etc.

Tip:

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

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

Powertrain > Engine and ECT > Data List


Tester Display	Measurement Item	Range	Normal Condition	Reference Value	Diagnostic Note
Vehicle Speed	Vehicle speed	Min.: 0 km/h, Max.: 255 km/h	Actual vehicle speed	-	-
Engine Speed	Engine speed	Min.: 0 rpm, Max.: 16383 rpm	-	Idling (warm up the engine): 830 rpm	-
Coolant Temp	Engine coolant temperature	Min.: -40°C, Max.: 215°C	After warming up engine: 75 to 90°C (167 to 194°F)	-	-
Ambient Temperature	Ambient temperature value	Min.: -40°C, Max.: 215°C	Actual ambient temperature	-	-
Battery Voltage	Battery voltage	Min.: 0 V, Max.: 65.535 V	Ignition switch ON: 11 to 14 V	-	-

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

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:

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.

Body Electrical > Power Source Control > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Shift P Signal	Shift position P*	ON or OFF	ON: Shift lever in P OFF: Shift lever not in P	Use this item to determine if the shift position switch is malfunctioning. The engine cannot be started when this item is OFF.
Vehicle Speed Signal	Vehicle being driven or stopped	Stop or Run	Stop: Vehicle stopped Run: Vehicle being driven at 5 km/h (3 mph) or more	-

*: for CVT

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:

Warm up the engine.
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.

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

Chassis > ABS/VSC/TRC > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Deceleration Sensor	Acceleration sensor reading*	Min.: -18.525 m/s², Max.: 18.387 m/s²	-	During deceleration/acceleration: Changes continuously
Deceleration Sensor2	Acceleration sensor 2 reading*	Min.: -18.525 m/s², Max.: 18.387 m/s²	-	During deceleration/acceleration: Changes continuously
Yaw Rate Sensor	Yaw rate sensor*	Min.: -128°/s, Max.: 127°/s	Vehicle stopped: 0 °/s Turning right: -128 to 0 °/s Turning left: 0 to 127 °/s	-
Steering Angle Sensor	Steering angle sensor*	Min.: -3276.8°, Max.: 3276.7°	Turning left: Increases Turning right: Decreases	-
FR Wheel Speed	Front wheel speed sensor RH reading	Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations
FL Wheel Speed	Front wheel speed sensor LH reading	Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations
RR Wheel Speed	Rear wheel speed sensor RH reading	Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations
RL Wheel Speed	Rear wheel speed sensor LH reading	Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations
Vehicle Speed	Maximum wheel speed sensor reading	Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations
Engine Revolutions	Engine speed*	Min.: 0 rpm, Max.: 65535 rpm	Engine stopped: 0 rpm	When engine speed is constant: No large fluctuations
Accelerator Opening Angle %	Percentage of accelerator pedal opening angle*	Min.: 0.0%, Max.: 128.0%	Accelerator pedal released: 0%	During accelerator pedal operation: Changes in proportion with the pedal movement
IG1 Voltage Value	IG1 voltage value	Min.: 0.00 V, Max.: 20.00 V	-	Changes in proportion to battery voltage

*: w/ VSC

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.

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

Chassis > EMPS > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Meter Vehicle Velocity	Vehicle speed from speedometer	Min.: 0.0 km/h (0.0 MPH) Max.: 300.0 km/h (186.4 MPH)	0 km/h (0 MPH): Engine running and vehicle stopped No significant fluctuation: Engine running and vehicle driven at a constant speed	-
Wheel Speed Right	Rear right wheel speed	Min.: 0 km/h (0 MPH) Max.: 255 km/h (158 MPH)	0 km/h (0 MPH): Engine running and vehicle stopped No significant fluctuation: Engine running and vehicle driven at a constant speed	-
Wheel Speed Left	Rear left wheel speed	Min.: 0 km/h (0 MPH) Max.: 255 km/h (158 MPH)	0 km/h (0 MPH): Engine running and vehicle stopped No significant fluctuation: Engine running and vehicle driven at a constant speed	-
Engine Revolution	Engine speed	Min.: 0 rpm Max.: 12800 rpm	No significant fluctuation	Engine running at a constant speed
Motor Actual Current	Amount of current to motor	Min.: -327.68 A Max.: 327.67 A	Value changes in proportion to steering effort - The value increases when turning left and decreases when turning right	Engine running and steering wheel being turned
IG Power Supply	IG power source voltage	Min.: 0.0000 V Max.: 20.1531 V	8 to 16 V	Ignition switch ON
Stop&Start Ctrl Mode	Status of the record of stop and start control mode	IG, Run, Stopreq, Stop or Restart	-	-
Steering Angle	Steering angle	Min.: -3072.0 deg Max.: 3070.5 deg	-	-

Details of relevant Data List items (Selected system: Entry&Start)

Note:

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

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.
When using the GTS with the engine switch off to troubleshoot:
Connect the GTS to the DLC3 and turn a courtesy light switch on and off at 1.5-second intervals until communication between the GTS and vehicle begins.

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

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

Body Electrical > Entry&Start > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
D-Door Touch Sensor	Driver door touch sensor (unlock sensor)*	ON or OFF	ON: Driver door touch sensor (unlock sensor) touched OFF: Driver door touch sensor (unlock sensor) not touched	Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.

*: Data from an actual vehicle provided for reference.

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:

Warm up the engine.
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.

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

Body Electrical > Combination Meter > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Vehicle Speed Meter	Vehicle speed	Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Almost the same as actual vehicle speed	-
Engine Rpm	Engine speed	Min.: 0 rpm, Max.: 12750 rpm	Almost the same as actual engine speed	-
Coolant Temperature	Engine coolant temperature	Min.: 0°C (32°F), Max.: 127.5°C (261.5°F)	except 1WW: 75 to 100 °C (167 to 212°F): After warming up engine for 1WW: 75 to 90°C (167 to 194°F): After warming up engine	-
+B Voltage Value	Battery voltage	Min.: 0 V, Max.: 25.5 V	11 to 14 V	-

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:

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.

Body Electrical > Air Conditioner > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Ambient Temp Sensor	Thermistor assembly	Min.: -23.30°C (-9.94°F) Max.: 65.95°C (150.71°F)	Actual ambient temperature displayed	-
Solar Sensor (D Side)	Driver side cooler (solar sensor) thermistor2 or cooler (solar sensor) thermistor3	Min.: 0 Max.: 255	Driver side cooler (solar sensor) thermistor2 or cooler (solar sensor) thermistor3 value increases as brightness increases	*1
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	-

*1: w/ Cooler System
*2: for Dual Type
*3: for Single Type

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:

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.

Body Electrical > Main Body > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
IG SW	Ignition switch ON signal	ON or OFF	ON: Ignition switch ON OFF: Ignition switch off	-
FR Door Courtesy SW	Front door courtesy light switch assembly RH signal	ON or OFF	ON: Front door RH open OFF: Front door RH closed	-
FL Door Courtesy SW	Front door courtesy light switch assembly LH signal	ON or OFF	ON: Front door LH open OFF: Front door LH closed	-

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:

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

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

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 95°C (167 to 203°F): Idling after engine warmed up	This is sent from the ECM.
Engine Spd (ECM)	Engine speed signal from ECM via CAN communication	Min.: 0 rpm, Max.: 12800 rpm	720 to 820 rpm: Idling after engine warmed up (for 1ND-TV) 600 to 700 rpm: Idling after engine warmed up (for 8NR-FTS with Manual Transaxle) 680 to 780 rpm: Idling after engine warmed up (for 8NR-FTS with CVT) 830 rpm: Idling after engine warmed up (for 1WW)	This is sent from the ECM.
Battery Voltage	Battery voltage	Min.: 0 V, Max.: 20 V	8 to 14 V: Idling	-
D Courtesy Switch Signal	Driver door courtesy switch signal	ON/OFF	ON: Driver side door opened OFF: Driver side door closed	-
Neutral Switch	Neutral start switch assembly signal	ON/OFF	ON: Shift lever in neutral OFF: Shift lever not in neutral	-
Vehicle Spd1 (ABS/VSC)	Vehicle speed signal from skid control ECU via CAN communication	Min.: 0 km/h (0 mph), Max.: 327.67 km/h (203.6 mph)	0 km/h (0 mph): Vehicle is stopped	-
Ambient Temp Sensor	Ambient temperature	Min.: -30°C (-22°F), Max.: 50°C (122°F)	Close to ambient temperature	-
Stop&Start of Eng State	Stop and start control status	IG / Run / Stopreq / Stop / Restart	IG: Before engine started Run: Engine running Stopreq: Engine stop requested Stop: Engine stopped (by stop and start control) Restart: Engine restarted	-
EPS Load	Electric power steering current	Min.: -327.68 A, Max.: 327.67 A	Approx. 0 A: EPS assist is not activated	-
Accelerator Position	Accelerator pedal position	Min.: 0%, Max.: 127.5%	Actual accelerator pedal position	-
Dec Sensor Calibration	Deceleration sensor zero point uncalibrated	Comp/Incomp	Comp: Deceleration sensor learning completed	-

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:

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
Battery Voltage	Battery voltage	Min.: 0 V, Max.:24 V	11 to 14 V1 9.5 to 14 V2	-
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

*1: w/o Stop and Start System
*2: w/ Stop and Start System

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

Note:

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

Tip:

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

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

Body Electrical > AFS > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
+B	IG power supply voltage value	0.00 to 19.75 V	11.00 to 14.00 V	-
FR Wheel Speed	Front right wheel speed	0.00 to 327.67 km/h (203.61 mph)	Condition can be displayed	-
FL Wheel Speed	Front left wheel speed	0.00 to 327.67 km/h (203.61 mph)	Condition can be displayed	-

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

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:

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.

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

Body Electrical > Starting Control > Data List


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: HL AutoLeveling)

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:

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

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

Body Electrical > HL AutoLeveling > Data List


Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
+B	IG power supply voltage value	0.00 to 19.75 V	11.00 to 14.00 V	-
Front Right Wheel Speed Value	Front right wheel speed	0.00 to 260.00 km/h (162.00 mph)	Vehicle stopped: 0 km/h (0 mph)	-
Front Left Wheel Speed Value	Front left wheel speed	0.00 to 260.00 km/h (162.00 mph)	Vehicle stopped: 0 km/h (0 mph)	-

Tip:

*1: w/ Entry and Start System
*2: w/ VSC
*3: for Radio and Display Type
*4: w/ Air Conditioning System
*5: w/ Simple Intelligent Parking Assist System
*6: w/ Stop and Start System
*7: for Sedan with Automatic Headlight Beam Level Control System
*8: except Sedan with Automatic Headlight Beam Level Control System
*9: w/ Toyota Safety Sense
*10: w/ Manual (SOS) Switch