CAN COMMUNICATION SYSTEM DIAGNOSIS SYSTEM

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

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

GTS display and installed systems

Tech Tips

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

Connected to	Code	ECU/Sensor Name	GTS Display	Applicability
-	CGW	Central gateway ECU (network gateway ECU)	-	Installed on all vehicles
-	DLC3	DLC3	-	Installed on all vehicles
Bus 1	F-CAM	Forward recognition camera	Front Camera Module	w/ Pre-collision System
	DS	Driving support ECU assembly	Driving Support (Cruise Control-ACC)	w/ Pre-collision System
	F-MR	Millimeter wave radar sensor assembly	Front Radar	w/ Pre-collision System
	R-CA	Television camera assembly	Parking Assist Monitor System	Installed on all vehicles
	BSM	Blind spot monitor sensor RH	Blind Spot Monitor Master	w/ Blind Spot Monitor System
	CS	Clearance warning ECU assembly	Clearance Warning (Clearance Sonar)	Installed on all vehicles
Bus 2	HVB	Battery ECU assembly	HV Battery	Installed on all vehicles
	SBW	Shift control ECU	Transmission Control	Installed on all vehicles
	SBM	Sub-battery with control assembly	Sub Battery Module	Installed on all vehicles
	HV	Hybrid vehicle control ECU assembly	Hybrid Vehicle Control	Installed on all vehicles
	BRK	Skid control ECU assembly	Skid Control (ABS/VSC/TRAC)	Installed on all vehicles
	F-MGC	Inverter with converter assembly	Motor Generator	Installed on all vehicles
	ENG	ECM	ECM (Engine)	Installed on all vehicles
Bus 3	YGW	Bus buffer ECU	Accessory Gateway	w/ Bus Buffer ECU
	AV	Radio receiver assembly	Display and Navigation (AVN)	Installed on all vehicles
	DCM	Telephone transceiver assembly	DCM	w/ Telematics System
	ANC	Stereo component equalizer assembly	Active Noise Control	Installed on all vehicles
Bus 4	EPS	Rack and pinion power steering gear assembly	Power Steering (EPS)	Installed on all vehicles
	PKB	Parking brake ECU assembly	Electric Parking Brake	Installed on all vehicles
	DRS	Rear steering control ECU	DRS	w/ Dynamic Rear Steering System
	YGS	Yaw rate sensor	Yaw Rate Sensor	Installed on all vehicles
	PUP	Pedestrian detection ECU assembly	Pedestrian Protection	Installed on all vehicles
	STR	Steering sensor	Spiral cable (Steering Angle Sensor)	Installed on all vehicles
	SRS	Airbag ECU assembly	Airbag	Installed on all vehicles
	HV	Hybrid vehicle control ECU assembly	Hybrid Vehicle Control	Installed on all vehicles
	ENG	ECM	ECM (Engine)	Installed on all vehicles
	VGRS	Front steering control ECU	Steering Control (VGRS)	w/ Variable Gear Ratio Steering System
	BRK	Skid control ECU assembly	Skid Control (ABS/VSC/TRAC)	Installed on all vehicles
	SCS	Absorber control ECU	Suspension Control (Air Suspension)	Installed on all vehicles
	TPMS	Tire pressure warning ECU and receiver	Tire Pressure	Installed on all vehicles
Bus 5	LITM	No. 1 headlight ECU sub-assembly LH	HL AutoLeveling/AFS/AHS	Installed on all vehicles
	PST	Position control ECU assembly RH	P-Seat	for LHD
	PST	Position control ECU assembly LH	P-Seat	for RHD
	RSC	Spoiler control ECU assembly	Active Rear Wing	w/ Active Rear Wing
	F-DRL	Front multiplex network door ECU LH	Front Door LH/L-Mirror (FL-Door/L-Mirror)	Installed on all vehicles
	DST	Position control ECU assembly LH	D-Seat	for LHD
	DST	Position control ECU assembly RH	D-Seat	for RHD
	LITS	No. 1 headlight ECU sub-assembly RH	HL AutoLeveling/AFS/AHS (Sub)	Installed on all vehicles
	F-DRR	Front multiplex network door ECU RH	Front Door RH/R-Mirror (FR-Door/R-Mirror)	Installed on all vehicles
	T&T	Multiplex tilt and telescopic ECU	Multiplex Tilt and Telescopic	Installed on all vehicles
	MB	Main body ECU (multiplex network body ECU)	Main Body	Installed on all vehicles
	HUD	Meter mirror sub-assembly	Head Up Display	w/ Headup Display System
	SMT	Certification ECU (smart key ECU assembly)	Certification (Smart)	Installed on all vehicles
	A/C	Air conditioning amplifier assembly	Air Conditioning Amplifier	Installed on all vehicles
	MET	Combination meter assembly	Combination Meter	Installed on all vehicles

Description of "Communication Bus Check" Screen

Note

The following communication bus check screen is provided only as an example. This screen differs from the actual screen for this vehicle.

Tech Tips

The ECUs and sensors that are normally connected to the CAN communication system are displayed on the GTS.

Select "Communication Bus Check" on the menu screen of the GTS.

CAN Bus Check

Tech Tips

If items are not selected correctly in the vehicle specification pop up screen, the name of the CAN junction connector to which the ECUs or sensors are connected may not be displayed on the "Communication Bus Check" screen.
Confirm that the "Communication Bus Check" screen is displayed and the ECUs and sensors that are normally connected to the CAN communication system are displayed.
Tech Tips
- Even if an ECU or sensor that is connected to a bus that is monitored by a bus monitoring ECU (gateway function equipped ECU) is not communicating, it will remain displayed on the "Communication Bus Check" screen.
- When an ECU or sensor that is connected to a bus that is not monitored by a bus monitoring ECU (gateway function equipped ECU) is not displayed on the "Communication Bus Check" screen, it means that it is not communicating.

The default display setting selected on the combo box is ALL. When checking for ECUs or sensors for a specific bus, choose the bus from the drop down list. ALL, each bus, each sub bus and Central Gateway are listed in the drop down list.

Combo box

Background color is red or yellow

Item	Detail
Combo box: ALL	Displays all ECUs and sensors connected to the central bus and sub buses.
Combo box: Bus	Displays ECUs and sensors connected to the selected bus.
Combo box: Sub bus	Displays ECUs and sensors connected to the selected sub bus.
Combo box: Central Gateway	Displays all ECUs and sensors connected to the central bus.

Note

When using the combo box, it may be possible to select a sub bus from the drop down list that does not have any connected ECUs or sensors. This is not a malfunction and occurs when there is no optional device connected to a sub bus which is monitored by a sub bus monitoring ECU (gateway function equipped ECU).
In the drop down list, all sub buses applicable to the model are displayed (e.g. LIN communication sub buses are also displayed). For information on sub buses necessary to diagnose the CAN communication system, refer to System Diagram.

Click here

Tech Tips

The background color of an ECU or sensor changes according to its connection status as indicated in the following table.

Description of "Communication Bus Check" Screen
Bus Type	Background Color	Connection Status
Bus	White	Communication has been normal.
	Yellow	Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
	Red	Currently not communicating (either of the following): Not communicating since the start of the CAN bus check Communication occurred at least once since the start of the CAN bus check, but is currently not occurring.
	Not displayed	Either of the following: The central gateway ECU (network gateway ECU) has an internal malfunction or cannot communicate with the GTS.4 No ECUs or sensors are connected to the bus.5
Sub bus with a gateway function equipped ECU that does not memorize connected ECUs or sensors*2	White	Communication has been normal since the start of the CAN bus check.
	Yellow	Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
	Red	Communication occurred at least once since the start of the CAN bus check, but is currently not occurring.
	Not displayed	Communication stop has continued since the start of the CAN bus check.*1
Sub bus with a gateway function equipped ECU that memorizes connected ECUs and sensors*3	White	Communication has been normal.
	Yellow	Communication stop occurred at least once since the start of the CAN bus check, but communication is currently occurring (unstable communication).
	Red	Currently not communicating (either of the following): Not communicating since the start of the CAN bus check Communication occurred at least once since the start of the CAN bus check, but is currently not occurring.
	Not displayed	Either of the following: The gateway function equipped ECU cannot communicate with the central gateway ECU.6 No ECUs or sensors are connected to the sub bus.7

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

Monitor the screen for any ECU or sensor connection status changes for a period of 2 minutes.
Tech Tips
- If an open occurs in one of the wires of a CAN branch line, it may interfere with the communication of other ECUs or sensors resulting in an incorrect state being displayed.
- If the connection status changes intermittently during the inspection, repair the open in the branch line of the ECU or sensor that is not communicating, and then perform Communication Bus Check again.

Description of "Communication Bus Check (Detail)" Screen

Note

The following communication bus check screen is provided only as an example. This screen differs from the actual screen for this vehicle.

Tech Tips

The communication error history of ECUs or sensors which have communication error history can be displayed on the "Communication Bus Check (Detail)" screen.

Select "Communication Bus Check" on the menu screen of the GTS.

CAN Bus Check

Tech Tips

If items are not selected correctly in the vehicle specification pop up screen, the name of the CAN junction connector to which the ECUs or sensors are connected may not be displayed on the "Communication Bus Check" screen.
Select "Detail" on the "Communication Bus Check" screen.

*a Communication Bus Check (Detail) - -
Confirm that the "Communication Bus Check (Detail)" screen is displayed and the communication error history of the ECUs or sensors up to present is displayed.
Tech Tips
- Lost Communication Time and Lost Communication Trip are only displayed for the central bus.
- Lost Communication Time and Lost Communication Trip are not displayed for sub buses.

Combo box

Background color is red

Item	Detail
Combo box: ALL	Displays all ECUs and sensors connected to the central bus and sub buses.
Combo box: Bus	Displays ECUs and sensors connected to the selected bus.
Combo box: Sub bus	Displays ECUs and sensors connected to the selected sub bus.
Combo box: Central Gateway	Displays all ECUs and sensors connected to the central bus.
Bus Monitoring ECU	Displays the gateway function equipped ECU which monitors the selected bus or sub bus.
Current Trip	Displays the total number of trips up to now*
Lost Communication Time(s)	Displays the longest period of time in seconds that the ECU or sensor connected to the central bus was not communicating.
Lost Communication Trip	Displays the trip in which the longest period of time that the ECU or sensor connected to the central bus was not communicating occurred.

*: If the component has been replaced with a new one, the total number of trips after the replacement is displayed.

Note

The Lost Communication Time column displays the longest period of time in seconds that the central gateway ECU (network gateway ECU) detected a communication stop in the respective ECU or sensor.
The Lost Communication Trip column displays the trip in which the central gateway ECU (network gateway ECU) detected the longest communication stop in the respective ECU or sensor.
When using the combo box, it may be possible to select a sub bus from the drop down list that does not have any connected ECUs or sensors. This is not a malfunction and occurs when there is no optional device connected to a sub bus which is monitored by a sub bus monitoring ECU (gateway function equipped ECU).
In the drop down list, all sub buses applicable to the model are displayed (e.g. LIN communication sub buses are also displayed). For information on sub buses necessary to diagnose CAN communication system, refer to the System Diagram.

Click here

Tech Tips

The background color of an ECU or sensor changes according to its connection status as indicated in the following table.

Description of "Communication Bus Check (Detail)" Screen
Bus Type	Background Color	Connection Status
Bus	White	Either of the following: Communication has been normal. Lost Communication Time is below 6 seconds.
	Red	Lost Communication Time is 6 seconds or more.
	Not displayed	Either of the following: The central gateway ECU (network gateway ECU) has an internal malfunction or cannot communicate with the GTS.1 No ECUs or sensors are connected to the bus.2
Sub bus	White	Lost Communication Time is displayed as "-".
Sub bus	Not displayed	Either of the following: The gateway function equipped ECU cannot communicate with the central gateway ECU.3 No ECUs or sensors are connected to the sub bus.4

If there is no communication between the GTS and the vehicle, or no ECUs or sensors are displayed as connected, check the central gateway ECU (network gateway ECU) and diagnosis bus (The bus that connects the DLC3 to the central gateway ECU (network gateway ECU)) for malfunctions.
Lost Communication Time and Lost Communication Trip are not displayed for sub buses.
*1: When the central gateway ECU (network gateway ECU) has an internal malfunction or cannot communicate with the GTS, the name of buses, sub buses, ECUs and sensors will not be displayed.
*2: When no ECUs or sensors are connected to a bus, the message "There is no system found on the communication Bus." will be displayed.
*3: When a gateway function equipped ECU cannot communicate with the central gateway ECU (network gateway ECU), the name of sub buses and ECUs or sensors connected to the sub bus will not be displayed.
*4: When no ECUs or sensors are connected to the sub bus, the message "There is no system found on the communication Bus." will be displayed.

Communication Bus Check (Communication Malfunction Check)
Tech Tips

DTCs related to CAN communication are displayed for each ECU on the GTS.
1. Select "Communication Bus Check" on the menu screen of the GTS.
  
  CAN Bus Check
2. Select "Communication Malfunction Check" on the "Communication Bus Check" screen.
  
  *a Communication Malfunction Check - -
3. Confirm that the "Communication Malfunction Check" screen is displayed and CAN communication DTCs for each ECU are displayed.
  
  Tech Tips
  
  When there are no CAN communication DTCs stored, no DTCs will be displayed.

How to Use "Communication Bus Check" Screen in Inspection

Note

The following CAN bus wiring diagram or communication bus check screen is provided only as an example. This wiring diagram or screen differs from the actual one for this vehicle.

Tech Tips

If the CAN communication system is currently malfunctioning, it is recommended to use Communication Bus Check rather than Communication DTCs for determining the suspected area.
Turn the power switch on (IG), or perform the necessary operations to reproduce the problem symptom, select "Communication Bus Check" and wait approximately 2 minutes. Check the communication status of each ECU or sensor on the screen while performing this operation.

If the CAN communication system is currently malfunctioning, determine the suspected area through Communication Bus Check as follows:

Problem Symptoms Table
Problem Symptom Pattern	Display on Communication Bus Check Screen	Suspected Area
A	Almost all of the ECUs and sensors connected to the malfunctioning CAN bus are displayed as not communicating on the "Communication Bus Check" screen.	Short between CAN bus lines (CANH and CANL) Short to +B in a CAN bus line (CANH or CANL) Short to ground in a CAN bus line (CANH or CANL)
B	ECUs or sensors farther from the central gateway ECU (network gateway ECU) than the open in the wires are displayed as not communicating on the "Communication Bus Check" screen.	Open in both wires of a main bus line in the central bus
C	One ECU or sensor is displayed as not communicating on the "Communication Bus Check" screen.	Open in both wires of a branch line connected to an ECU or sensor in the central bus Internal malfunction of an ECU or sensor in the central bus Malfunction in the power supplied to an ECU or sensor in the central bus
D	No ECUs or sensors are displayed on the "Communication Bus Check" screen.	Internal malfunction of the central gateway ECU (network gateway ECU) Malfunction in the power supplied to the central gateway ECU (network gateway ECU) Open in both wires of the branch line in the diagnosis bus (DLC3 - Central gateway ECU (network gateway ECU)) Short between CAN bus lines (CANH and CANL) in the diagnosis bus (DLC3 - Central gateway ECU (network gateway ECU)) Short to +B in a CAN bus line (CANH or CANL) in the diagnosis bus (DLC3 - Central gateway ECU (network gateway ECU)) Short to ground in a CAN bus line (CANH or CANL) in the diagnosis bus (DLC3 - Central gateway ECU (network gateway ECU))
E	One ECU or sensor is displayed as not communicating in multiple buses on the "Communication Bus Check" screen.	Internal malfunction of an ECU or sensor connected to multiple buses Malfunction in the power supplied to an ECU or sensor connected to multiple buses
F	Some ECUs or sensors are displayed as not communicating in the central bus and other ECUs or sensors are displayed as not communicating in a sub bus.	Open in a wire of a branch line connected to an ECU or sensor in the central bus Internal malfunction of an ECU or sensor in the central bus
G	A gateway function equipped ECU is displayed as not communicating in the central bus and ECUs and sensors connected to its respective sub bus are not displayed.	Open in both wires of a branch line connected to a gateway function equipped ECU Internal malfunction of a gateway function equipped ECU Malfunction in the power supplied to a gateway function equipped ECU
H	One ECU or sensor is displayed as not communicating in a sub bus on the "Communication Bus Check" screen.	Open in both wires of a branch line connected to an ECU or sensor in a sub bus Internal malfunction of an ECU or sensor in a sub bus Malfunction in the power supplied to an ECU or sensor in a sub bus
I	ECUs or sensors farther from the sub bus monitoring ECU (gateway function equipped ECU) than the open in the wires are displayed as not communicating on the "Communication Bus Check" screen.	Open in both wires of a main bus line in a sub bus

Problem Symptom Pattern A

Details of Malfunction

Short between CAN bus lines (CANH and CANL) in Bus 2
Short to +B in a CAN bus line (CANH or CANL) in Bus 2
Short to ground in a CAN bus line (CANH or CANL) in Bus 2

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red

Tech Tips

Due to the malfunction, almost all of the ECUs and sensors connected to Bus 2 will be displayed as not communicating and their background color will be red.
The malfunction in Bus 2 will not affect the other buses.
The malfunctioning part can be determined by inspecting for an open in the main bus line, a short between bus lines or a short to +B or ground.
Make sure to perform the inspection to measure resistances of buses to determine the cause of the malfunction.

Details of Malfunction

Short between CAN bus lines (CANH and CANL) in Bus 4
Short to +B in a CAN bus line (CANH or CANL) in Bus 4
Short to ground in a CAN bus line (CANH or CANL) in Bus 4

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red
*g	Not displayed	-	-

Tech Tips

Due to the malfunction, almost all of the ECUs and sensors connected to Bus 4 will be displayed as not communicating and their background color will be red.
The malfunction will not affect the other buses of the central bus. However, the sub bus connected to Bus 4 is likely to be affected. the gateway function equipped ECU connected to Bus 4 will not communicate and consequently the sub bus and its respective ECUs or sensors monitored by the gateway function equipped ECU (sub bus monitoring ECU) will not be displayed, indicating that the gateway function equipped ECU is not communicating with the central gateway ECU (network gateway ECU).
The malfunctioning part can be determined by inspecting for an open in the main bus line, a short between bus lines or a short to +B or ground.
Make sure to perform the inspection to measure resistances of buses to determine the cause of the malfunction.

Problem Symptom Pattern B

Details of Malfunction

Open in both wires of the main bus line between the CGW and No. 1 CAN junction connector in Bus 2

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red

Tech Tips

Due to the malfunction, almost all of the ECUs and sensors connected to Bus 2 will be displayed as not communicating and their background color will be red.
The malfunction in Bus 2 will not affect the other buses.
The malfunctioning part can be determined by inspecting for an open in the main bus line.
Make sure to perform the inspection to measure resistances of buses to determine the cause of the malfunction.

Details of Malfunction

Open in both wires of the main bus line between the No. 1 CAN junction connector and No. 2 CAN junction connector in Bus 2

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red

Tech Tips

Due to the malfunction, ECUs or sensors farther from the CGW than the open in the wires will be displayed as not communicating and their background color will be red.
The malfunction in Bus 2 will not affect the other buses.
The malfunctioning part can be determined by inspecting for an open in the main bus line.
Make sure to perform the inspection to measure resistances of buses to determine the cause of the malfunction.

Details of Malfunction

Open in both wires of the main bus line between the No. 2 CAN junction connector and ENG in Bus 2

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red
*g	Pattern 1	*h	Pattern 2

Tech Tips

Even when the same part of the main bus line is open, depending on internal electrical noise which changes according to the position of the open in the line, the information displayed on the "Communication Bus Check" screen may differ.
In pattern 2, the information displayed may be the same as when there is an open in both wires in the main bus line between the No. 1 CAN junction connector and No. 2 CAN junction connector, which may make it difficult to determine the malfunctioning part.
The malfunction in Bus 2 will not affect the other buses.
Make sure to perform the inspection to measure resistances of buses to determine the cause of the malfunction.

Problem Symptom Pattern C

Details of Malfunction

Open in both wires of the branch line connected to F-MGC in Bus 2

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red

Tech Tips

The information displayed on the "Communication Bus Check" screen will be the same for an open in both wires of a branch line, an internal malfunction of an ECU or sensor or a malfunction in the power supplied to an ECU or sensor. In this example, the background color of the malfunctioning ECU or sensor will be red.

Details of Malfunction

Internal malfunction of F-MGC in Bus 2
Malfunction in the power supplied to F-MGC in Bus 2

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red

Tech Tips

Details of Malfunction

Open in both wires of the branch line connected to ENG in Bus 4

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red

Tech Tips

The malfunction in Bus 4 will not affect the other buses.
Due to the malfunction, although ENG is communicating normally with CGW via Bus 2, it is not communicating with CGW via Bus 4. Consequently, it will be displayed as not communicating in Bus 4.

Problem Symptom Pattern D

Details of Malfunction

Internal malfunction of the CGW
Malfunction in the power supplied to the CGW

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Not displayed

Tech Tips

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

Details of Malfunction

Open in both wires of the branch lines in the diagnosis bus

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Not displayed

Tech Tips

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

Problem Symptom Pattern E

Details of Malfunction

Internal malfunction of BRK
Malfunction in the power supplied to BRK

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red

Tech Tips

The information displayed on the "Communication Bus Check" screen will be the same for an internal malfunction of an ECU or sensor, or a malfunction in the power supplied to an ECU or sensor.

Due to the malfunction, BRK is not communicating with the CGW via both Bus 2 and Bus 4. Consequently, the background color of BRK will be red for both Bus 2 and Bus 4.

Problem Symptom Pattern F

Details of Malfunction

Open in a wire of the branch line connected to HV in Bus 4
Internal malfunction of HV in Bus 4

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red
*g	Background color intermittently becomes yellow or red	*h	Not displayed or background color is yellow or red

Tech Tips

In the "Communication Bus check" screen shown in the illustration, electrical noise in the CAN bus caused by an open in a wire in the branch line connected to HV interferes with the communication of MB causing unstable communication. Also, since MB is a gateway function equipped ECU, communication of ECUs connected to its respective sub bus will also be unstable.
In the "Communication Bus Check" screen shown in the illustration, because the background color of HV is red, it is suspected that HV is the most likely cause of the malfunction. Therefore, it is suspected that HV is not communicating.

Problem Symptom Pattern G

Details of Malfunction

Open in both wires of the branch line connected to MB in Bus 4
Internal malfunction of MB in Bus 4
Malfunction in the power supplied to MB in Bus 4

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red
*g	Not displayed	-	-

Tech Tips

If there is a communication malfunction in a gateway function equipped ECU, ECUs connected to its respective sub bus will also be affected and will not be displayed.
In the "Communication Bus Check" screen shown in the illustration, MB is a gateway function equipped ECU. Therefore, MB is suspected as not communicating.

Problem Symptoms Pattern H

Details of Malfunction

Internal malfunction of MIR-L in the sub bus
Malfunction in the power supplied to MIR-L in the sub bus

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red

Tech Tips

The malfunction in the sub bus will not affect the other buses.
When a gateway function equipped ECU memorizes ECUs and sensors connected to its respective sub bus and there is a communication malfunction in one of the ECUs or sensors, the background color of the ECU or sensor will change to red and the ECU or sensor will remain displayed.
The information displayed on the "Communication Bus Check" screen will be the same for an open in both wires of a branch line, an internal malfunction of an ECU or sensor or a malfunction in the power supplied to an ECU or sensor.

Details of Malfunction

Open in both wires of the branch line connected to MIR-L in the sub bus

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red

Tech Tips

The malfunction in the sub bus will not affect the other buses.
When a gateway function equipped ECU memorizes ECUs and sensors connected to its respective sub bus and there is a communication malfunction in one of the ECUs or sensors, the background color of the ECU or sensor will change to red and the ECU or sensor will remain displayed.
The information displayed on the "Communication Bus Check" screen will be the same for an open in both wires of a branch line, an internal malfunction of an ECU or sensor or a malfunction in the power supplied to an ECU or sensor.

Problem Symptom Pattern I

Details of Malfunction

Open in both wires of the main bus line in the sub bus

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red

Tech Tips

Due to the malfunction, ECUs or sensors farther from the sub bus monitoring ECU (gateway function equipped ECU) than the open in the wires will be displayed as not communicating and their background color will be red.

How to Use "Communication Bus check (Detail)" Screen in Inspection

If the CAN communication system is currently normal but has communication stop history, determine the malfunctioning part using Communication Bus Check (Detail) as follows:
Note
- The following CAN bus wiring diagram or communication bus check screen is provided only as an example. This wiring diagram or screen differs from the actual one for this vehicle.
- The Lost Communication Time column displays the longest period of time in seconds that the central gateway ECU (network gateway ECU) detected a communication stop in the respective ECU or sensor.
- The Lost Communication Trip column displays the trip in which the central gateway ECU (network gateway ECU) detected the longest communication stop in the respective ECU or sensor.
- When using the combo box, it may be possible to select a sub bus from the drop down list that does not have any connected ECUs or sensors. This is not a malfunction and occurs when there is no optional device connected to a sub bus which is monitored by a sub bus monitoring ECU (gateway function equipped ECU).
- In the drop down list, all sub buses applicable to the model are displayed (e.g. LIN communication sub buses are also displayed). For information on sub buses necessary to diagnose CAN communication system, refer to the System Diagram.
  
  Click here
Tech Tips
- If the CAN communication system is currently malfunctioning, it is recommended to use Communication Bus Check rather than Communication Bus Check (Detail) for determining the suspected area.
- The communication error history of ECUs or sensors which have communication error history can be displayed on the "Communication Bus Check (Detail)" screen.
- Lost Communication Time and Lost Communication Trip are only displayed for the central bus.
- Lost Communication Time and Lost Communication Trip are not displayed for sub buses.

If there is an ECU or sensor displayed with a red background on the "Communication Bus Check (Detail)" screen to indicate that it was not communicating, it is suspected that the ECU or sensor was not communicating.

Details of Malfunction

Past malfunction in the wire harness or power supplied to F-MGC in Bus 2

*a	Bus 2	*b	Bus 4
*c	Sub bus	*d	Diagnosis bus
*e	Location of malfunction	*f	Background color is red

Description of "Communication Bus Check (Detail)" Screen
Bus Type	Background Color	Connection Status
Bus	White	Either of the following: Communication has been normal. Lost Communication Time is below 6 seconds.
	Red	Lost Communication Time is 6 seconds or more.
	Not displayed	Either of the following: The central gateway ECU (network gateway ECU) has an internal malfunction or cannot communicate with the GTS.1 No ECUs or sensors are connected to the bus.2
Sub bus	White	Lost Communication Time is displayed as "-".
Sub bus	Not displayed	Either of the following: The gateway function equipped ECU cannot communicate with the central gateway ECU.3 No ECUs or sensors are connected to the sub bus.4

Tech Tips

Check the values of Lost Communication Trip and Current Trip for the ECUs or sensors that have a red background color.
If the values of Lost Communication Trip and Current Trip are the same for an ECU or sensor, the ECU or sensor is currently not communicating. In this case, it is recommended to use Communication Bus Check rather than Communication Bus Check (Detail) for determining the suspected area.
In the "Communication Bus Check (Detail)" screen shown in the illustration, F-MGC had a communication malfunction in the 10th trip. Thus, it is suspected that F-MGC was not communicating.
*1: When the central gateway ECU (network gateway ECU) has an internal malfunction or cannot communicate with the GTS, the name of buses, sub buses, ECUs and sensors will not be displayed.
*2: When no ECUs or sensors are connected to a bus, the message "There is no system found on the communication Bus." will be displayed.
*3: When a gateway function equipped ECU cannot communicate with the central gateway ECU (network gateway ECU), the name of sub buses and ECUs or sensors connected to the sub bus will not be displayed.
*4: When no ECUs or sensors are connected to the sub bus, the message "There is no system found on the communication Bus." will be displayed.

DTC TABLE BY ECU

Tech Tips

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

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

ECM / GTS Display "Engine"

Powertrain > Engine > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U011087	Lost Communication with Drive Motor Control Module "A" Missing Message	Communication stop occurs between the ECM and inverter with converter assembly continuously for approximately 6 seconds or more.	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the ECM is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 8 seconds.	MIL (Check engine warning light) illuminates.	-	DTC is stored until it is cleared using the GTS.
U029387	Lost Communication with Hybrid Powertrain Control Module Missing Message	Communication stop occurs between the ECM and hybrid vehicle control ECU assembly continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the ECM is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 2 seconds.	MIL (Check engine warning light) illuminates.	-	DTC is stored until it is cleared using the GTS.
U117587	Lost Communication with HV Battery(Powertrain Bus) Missing Message	Communication stop occurs between the ECM and battery ECU assembly continuously for approximately 51 seconds or more.	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the ECM is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 53 seconds.	MIL (Check engine warning light) illuminates.	-	DTC is stored until it is cleared using the GTS.

Hybrid Vehicle Control ECU Assembly

GTS Display "Hybrid Control"

Powertrain > Hybrid Control > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U010087	Lost Communication with ECM/PCM "A" Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and ECM continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the hybrid vehicle control ECU assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 2 seconds.	MIL (Check engine warning light) illuminates.	-	DTC is stored until it is cleared using the GTS.
U011087	Lost Communication with Drive Motor Control Module "A" Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and inverter with converter assembly continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the hybrid vehicle control ECU assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 2 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U011187	Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and battery ECU assembly continuously for approximately 2 seconds or more.	All conditions are met: Approximately 1 second or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the hybrid vehicle control ECU assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 3 seconds.	MIL (Check engine warning light) illuminates.	-	DTC is stored until it is cleared using the GTS.
U012987	Lost Communication with Brake System Control Module Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and skid control ECU assembly continuously for approximately 3 seconds or more.	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the hybrid vehicle control ECU assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U014087	Lost Communication with Body Control Module Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and main body ECU (multiplex network body ECU) continuously for approximately 4 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the hybrid vehicle control ECU assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 7 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U015187	Lost Communication with Restraints Control Module Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and yaw rate sensor continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the hybrid vehicle control ECU assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 2 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U016487	Lost Communication with HVAC Control Module Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and air conditioning amplifier assembly continuously for approximately 11 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the hybrid vehicle control ECU assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U029387	Lost Communication with Hybrid/EV Powertrain Control Module Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and skid control ECU assembly continuously for approximately 11 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the hybrid vehicle control ECU assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U042481	HVAC Control Module to Hybrid Powertrain Control Module Invalid Serial Data Received	The hybrid vehicle control ECU assembly receives the malfunction signal from the air conditioning amplifier assembly continuously for approximately 4 seconds or more.	All conditions are met: Approximately 4 seconds or more elapse after the power switch is on (IG). The power source voltage of the hybrid vehicle control ECU assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 8 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U110787	Lost Communication with Power Management Module Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and certification ECU (smart key ECU assembly) continuously for approximately 4 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the hybrid vehicle control ECU assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 7 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U117087	Lost Communication with Brake System Control Module (Secondary CAN Line) Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and skid control ECU assembly continuously for approximately 3 seconds or more.	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the hybrid vehicle control ECU assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U117587	Lost Communication with Hybrid/EV Battery Energy Control Module "A" (Powertrain Bus) Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and battery ECU assembly continuously for approximately 51 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the hybrid vehicle control ECU assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 52 seconds.	MIL (Check engine warning light) illuminates.	-	DTC is stored until it is cleared using the GTS.
U117687	Lost Communication with Gear Shift Control Module "A" (Powertrain Bus) Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and shift control ECU continuously for approximately 2 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the hybrid vehicle control ECU assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 3 seconds.	-	-	DTC is stored until it is cleared using the GTS.

GTS Display "Radar Cruise1" (w/ Dynamic Radar Cruise Control System)

Powertrain > Cruise Control > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U012287	Lost Communication with Vehicle Dynamics Control Module Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and skid control ECU assembly continuously for approximately 3 seconds or more.	All conditions are met: The power switch on (IG). The dynamic radar cruise control system is in operation.	Turn the dynamic radar cruise control system on and wait for approximately 3 seconds or more.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U029387	Lost Communication with Hybrid Powertrain Control Module Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and skid control ECU assembly continuously for 1 second or more.	All conditions are met: The power switch on (IG). The dynamic radar cruise control system is in operation.	Turn the dynamic radar cruise control system on and wait for 1 second or more.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U110487	Lost Communication with Driving Support ECU Missing Message	Communication stop occurs between driving support ECU assembly and hybrid vehicle control ECU assembly or driving support ECU assembly and millimeter wave radar sensor assembly or driving support ECU assembly and skid control ECU assembly continuously for approximately 1 second or more.	All conditions are met: The power switch on (IG). The dynamic radar cruise control system is in operation.	Turn the dynamic radar cruise control system on and wait for approximately 1 second or more.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

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

Powertrain > Cruise Control > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed	DTC Storage Method
U012287	Lost Communication with Vehicle Dynamics Control Module Missing Message	Communication stop occurs between the hybrid vehicle control ECU assembly and skid control ECU assembly continuously for approximately 3 seconds or more.	All conditions are met: The power switch on (IG). Cruise control main switch is on. The power source voltage of the ECM is 10.5 V or more.	Turn the dynamic radar cruise control system on and wait for approximately 3 seconds or more.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

DTC

Detection Item

DTC Detection Condition

DTC Detection Pre-condition

DTC Check Procedure

Warning Displayed

DTC Storage Method

Indication in Meter

Multi-information Display

U012287

Lost Communication with Vehicle Dynamics Control Module Missing Message

Communication stop occurs between the hybrid vehicle control ECU assembly and skid control ECU assembly continuously for approximately 3 seconds or more.

All conditions are met:

The power switch on (IG).
Cruise control main switch is on.
The power source voltage of the ECM is 10.5 V or more.

Turn the dynamic radar cruise control system on and wait for approximately 3 seconds or more.

Displays messages on the multi-information display.

DTC is stored until it is cleared using the GTS.

Shift Control ECU / GTS Display "Hybrid Control"

Powertrain > Hybrid Control > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U010387	Lost Communication with Gear Shift Control Module "A" (Hybrid/EV Battery Local Bus) Missing Message	Communication stop occurs between the shift control ECU and hybrid vehicle control ECU assembly continuously for 1 second or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the shift control ECU is 10 V or more.	Turn the power switch on (IG) and wait at least 2 seconds.	MIL (Check engine warning light) illuminates.	-	DTC is stored until it is cleared using the GTS.
U014000	Lost Communication with Cruise Control Module Missing Message	Communication stop occurs between the shift control ECU and main body ECU (multiplex network body ECU) continuously for approximately 4 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the shift control ECU is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 7 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U029300	Lost Communication with Hybrid/EV Powertrain Control Module from Gear Shift Control Module "A"	Communication stop occurs between the shift control ECU and hybrid vehicle control ECU assembly continuously for approximately 11 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the shift control ECU is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 14 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U110700	Lost Communication with Power Management Module (Gear Shift Control Module "A")	Communication stop occurs between the shift control ECU and certification ECU (smart key ECU assembly) continuously for approximately 4 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the shift control ECU is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 7 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U117000	Lost Communication with Brake System Control Module (Gear Shift Control Module "A")	Communication stop occurs between shift control ECU and skid control ECU assembly continuously for approximately 3 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the shift control ECU is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 6 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Inverter with Converter Assembly / GTS Display "Motor Generator"

Powertrain > Motor Generator > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U010087	Lost Communication With ECM/PCM "A" Missing Message	Communication stop occurs between the inverter with converter assembly and ECM continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the inverter with converter assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 3 seconds.	MIL (Check engine warning light) illuminates. Master warning light illuminates.	-	DTC is stored until it is cleared using the GTS.
U029387	Lost Communication With Hybrid Powertrain Control Module Missing Message	Communication stop occurs between the inverter with converter assembly and hybrid vehicle control ECU assembly continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the inverter with converter assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 3 seconds.	MIL (Check engine warning light) illuminates. Master warning light illuminates.	-	DTC is stored until it is cleared using the GTS.
U117087	Lost Communication With Brake System Control Module(ch2) Missing Message	Communication stop occurs between the inverter with converter assembly and skid control ECU assembly continuously for approximately 3 seconds or more.	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the inverter with converter assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 7 seconds.	Master warning light illuminates.	-	DTC is stored until it is cleared using the GTS.

Battery ECU Assembly / GTS Display "HV Battery"

Powertrain > HV Battery > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U010087	Lost Communication with ECM/PCM "A" Missing Message	Communication stop occurs between the battery ECU assembly and ECM continuously for approximately 2 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the battery ECU assembly is 9.6 V or more.	Turn the power switch on (IG) and wait at least approximately 3 seconds.	MIL (Check engine warning light) illuminates. Master warning light illuminates.	-	Up to 3 trips are stored after the system returns to normal.
U029387	Lost Communication with Hybrid/EV Powertrain Control Module Missing Message	Communication stop occurs between the battery ECU assembly and hybrid vehicle control ECU assembly continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the battery ECU assembly is 9.6 V or more.	Turn the power switch on (IG) and wait at least approximately 2 seconds.	MIL (Check engine warning light) illuminates. Master warning light illuminates.	-	Up to 3 trips are stored after the system returns to normal.
U115087	Lost Communication with Hybrid Powertrain Control Module (Hybrid/EV Battery Local Bus) Missing Message	Communication stop occurs between the battery ECU assembly and hybrid vehicle control ECU assembly continuously for 1 second or more.	All conditions are met: 1 second or more elapse after the IGCT is on (IG). The power source voltage of the battery ECU assembly is 9.6 V or more.	Turn the IGCT on (IG) and wait for at least 2 seconds	MIL (Check engine warning light) illuminates. Master warning light illuminates.	-	Up to 3 trips are stored after the system returns to normal.

Skid Control ECU Assembly / GTS Display "ABS/VSC/TRC"

Chassis > ABS/VSC/TRC > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0073	Control Module Communication Bus Off	Either of the following conditions is met: Communication stop occurs at least 10 times in 5 seconds. Communication stop occurs between the skid control ECU assembly and yaw rate sensor, steering sensor, front steering control ECU or rear steering control ECU continuously for 1 second or more. The following conditions occur at least 10 times within 60 seconds: Communication stop occurs between the skid control ECU assembly and yaw rate sensor at least 1 time within 5 seconds. Communication stop occurs between the skid control ECU assembly and steering sensor at least 1 time within 5 seconds. Communication stop occurs between the skid control ECU assembly and front steering control ECU at least 1 time within 5 seconds. Communication stop occurs between the skid control ECU assembly and rear steering control ECU at least 1 time within 5 seconds. The bus turns off consecutively.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the skid control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 63 seconds.	ABS warning light illuminates. Slip indicator light illuminates. Brake warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0110	Lost Communication With Drive Motor Control Module "A"	Either of the following conditions is met: Communication stop occurs between the skid control ECU assembly and hybrid vehicle control ECU assembly continuously for 2 seconds or more. Communication stop occurs between the skid control ECU assembly and hybrid vehicle control ECU assembly 1 time or more within 5 seconds at least 10 times.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the skid control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 53 seconds.	Brake warning light illuminates. Slip indicator light illuminates. Brake hold indicator light blinks.	-	DTC is stored until it is cleared using the GTS.
U0120	Lost Communication With Starter / Generator Control Module	Communication stop occurs between the skid control ECU assembly and certification ECU (smart key ECU assembly) continuously for 3 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the skid control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 6 seconds.	Brake warning light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0123	Lost Communication With Yaw Rate Sensor Module	Either of the following conditions is met: Communication stop occurs between the skid control ECU assembly and yaw rate sensor continuously for 1 second or more. Communication stop occurs between the skid control ECU assembly and yaw rate sensor 1 time or more within 5 seconds and at least 10 times for 60 seconds.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the skid control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 63 seconds.	Slip indicator light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0124	Lost Communication With Lateral Acceleration Sensor Module	Either of the following conditions is met: Communication stop occurs between the skid control ECU assembly and yaw rate sensor continuously for 1 second or more. Communication stop occurs between the skid control ECU assembly and yaw rate sensor 1 time or more within 5 seconds and at least 10 times for 60 seconds.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the skid control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 63 seconds.	ABS warning light illuminates. Slip indicator light illuminates. Brake hold indicator light blinks. The Brake warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication With Steering Angle Sensor Module	Either of the following conditions is met: Communication stop occurs between the skid control ECU assembly and steering sensor continuously for at least 1 second. Communication stop occurs between the skid control ECU assembly and yaw rate sensor continuously for 1 second or more. Communication stop occurs between the skid control ECU assembly and steering sensor 1 time or more within 5 seconds and at least 10 times for 60 seconds.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the skid control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 63 seconds.	Slip indicator light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0128	Lost Communication With EPB Module	Communication stop occurs between the skid control ECU assembly and the rack and pinion power steering gear assembly continuously for 1 second or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the skid control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 4 seconds.	Brake hold indicator light blinks.	-	DTC is stored until it is cleared using the GTS.
U0130	Lost Communication With Steering Effort Control Module	Either of the following conditions is met: Communication stop occurs between the skid control ECU assembly and front steering control ECU continuously for 1 second or more. Communication stop occurs between the skid control ECU assembly and front steering control ECU 1 time or more within 5 seconds and at least 10 times for 60 seconds.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the skid control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 63 seconds.	Slip indicator light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0134	Lost Communication With DRS Module	Either of the following conditions is met: Communication stop occurs between the skid control ECU assembly and rear steering control ECU continuously for 1 second or more. Communication stop occurs between the skid control ECU assembly and rear steering control ECU 1 time or more within 5 seconds and at least 10 times for 60 seconds.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the skid control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 63 seconds.	Slip indicator light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0151	Lost Communication With Restraints Control Module	Communication stop occurs between the skid control ECU assembly and airbag ECU assembly continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the skid control ECU assembly is 10 V or more. Vehicle speed is 7 km/h (4 mph) or more.	Drive the vehicle for 8 seconds or more at a speed of 7 km/h (4 mph) or more.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication With Hybrid Vehicle Control System	Either of the following conditions is met: Communication stop occurs between the skid control ECU assembly and hybrid vehicle control ECU assembly continuously for 2 seconds or more. Communication stop occurs between the skid control ECU assembly and hybrid vehicle control ECU assembly 1 time or more within 5 seconds at least 10 times.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the skid control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 53 seconds.	Brake warning light illuminates. Slip indicator light illuminates. Brake hold indicator light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Rack and Pinion Power Steering Gear Assembly / GTS Display "EPMS"

Chassis > EMPS > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the rack and pinion power steering gear assembly and steering sensor continuously for 6 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the rack and pinion power steering gear assembly is 9 V or more.	Turn the power switch on (IG) and wait at least approximately 9 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the rack and pinion power steering gear assembly and skid control ECU assembly continuously for approximately 3 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the rack and pinion power steering gear assembly is 9 V or more.	Turn the power switch on (IG) and wait at least approximately 6 seconds.	EPS warning light illuminates.	-	DTC remains stored only while malfunction is occurring.
U0130	Lost Communication with Steering Effort Control Module	Communication stop occurs between the rack and pinion power steering gear assembly and front steering control ECU continuously for approximately 2 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the rack and pinion power steering gear assembly is 9 V or more.	Turn the power switch on (IG) and wait at least approximately 5 seconds.	EPS warning light illuminates.	-	DTC remains stored only while malfunction is occurring.
U0134	Lost Communication with DRS Module	Communication stop occurs between the rack and pinion power steering gear assembly and rear steering control ECU for approximately 2 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the rack and pinion power steering gear assembly is 9 V or more.	Turn the power switch on (IG) and wait at least approximately 5 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U023A	Lost Communication with Front Camera Module	Communication stop occurs between the rack and pinion power steering gear assembly and forward recognition camera continuously for approximately 2 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the rack and pinion power steering gear assembly is 9 V or more.	Turn the power switch on (IG) and wait at least approximately 5 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0293	Lost Communication with Hybrid Control Module	Communication stop occurs between the rack and pinion power steering gear assembly and hybrid vehicle control ECU assembly continuously for 5 minutes or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the rack and pinion power steering gear assembly is 9 V or more. The vehicle speed is 20 km/h (12 mph) or more.	Drive the vehicle for approximately 5 minutes or more at a speed of 20 km/h (12 mph) or more.	-	-	DTC remains stored only while malfunction is occurring.
U0293	Lost Communication with Hybrid Control Module	Communication stop occurs between the rack and pinion power steering gear assembly and hybrid vehicle control ECU assembly continuously for approximately 3 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the rack and pinion power steering gear assembly is 9 V or more.	Turn the power switch on (IG) and wait at least approximately 6 seconds.	-	-	DTC remains stored only while malfunction is occurring.

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

Chassis > VGRS > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0101	Lost Communication with TCM	Communication stop occurs between the front steering control ECU and hybrid vehicle control ECU assembly continuously for 12 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the front steering control ECU is 10 to 16 V.	Turn the power switch on (IG) and wait at least 13 seconds.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0125	Lost Communication with Yaw Rate Sensor Module	Communication stop occurs between the front steering control ECU and yaw rate sensor continuously for 12 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the front steering control ECU is 10 to 16 V.	Turn the power switch on (IG) and wait at least 13 seconds.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the front steering control ECU and steering sensor continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the front steering control ECU is 10 to 16 V.	Turn the power switch on (IG) and wait at least 4 seconds.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Either of the following conditions is met: Communication stop occurs between the front steering control ECU and skid control ECU assembly continuously for 3 seconds or more. Communication stop occurs between the front steering control ECU and skid control ECU assembly continuously for 12 seconds or more.	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the front steering control ECU is 10 to 16 V.	Turn the power switch on (IG) and wait at least 14 seconds.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0131	Lost Communication with Power Steering Control Module	Communication stop occurs between the front steering control ECU and the rack and pinion power steering gear assembly continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the front steering control ECU is 10 to 16 V.	Turn the power switch on (IG) and wait at least 4 seconds.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0134	Lost Communication with DRS Module	Communication stop occurs between the front steering control ECU and the rear steering control ECU continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the front steering control ECU is 10 to 16 V.	Turn the power switch on (IG) and wait at least 4 seconds.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication with Hybrid Vehicle Control System	Communication stop occurs between the front steering control ECU and hybrid vehicle control ECU assembly continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the front steering control ECU is 10 to 16 V.	Turn the power switch on (IG) and wait at least 4 seconds.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Rear Steering Control ECU / GTS Display "DRS" (w/ Dynamic Rear Steering System)

Chassis > DRS > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the rear steering control ECU and skid control ECU assembly continuously for 3 seconds or more.	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the rear steering control ECU is 10 to 16 V.	Turn the power switch on (IG) and wait at least 5 seconds.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0130	Lost Communication with Steering Effort Control Module	Communication stop occurs between the rear steering control ECU and front steering control ECU continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the rear steering control ECU is 10 to 16 V.	Turn the power switch on (IG) and wait at least 4 seconds.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication with Hybrid Vehicle Control System	Communication stop occurs between the rear steering control ECU and hybrid vehicle control ECU assembly continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the rear steering control ECU is 10 to 16 V. The vehicle speed is 20 km/h (12 mph) or more.	Drive the vehicle for 4 seconds or more at a speed of 20 km/h (12 mph) or more.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Absorber Control ECU / GTS Display "Air suspension"

Chassis > Air suspension > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the absorber control ECU and ECM continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the absorber control ECU is 10 V or more. The vehicle speed is 30 km/h (19 mph) or more.	Drive the vehicle for 4 seconds or more at a speed of 30 km/h (19 mph) or more.	-	-	DTC is stored until it is cleared using the GTS.
U0101	Lost Communication with TCM	Communication stop occurs between the absorber control ECU and hybrid vehicle control ECU assembly continuously for 6 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the absorber control ECU is 10 V or more. The vehicle speed is 30 km/h (19 mph) or more.	Drive the vehicle for 7 seconds or more at a speed of 30 km/h (19 mph) or more.	-	-	DTC is stored until it is cleared using the GTS.
U0122	Lost Communication with Vehicle Dynamics Control Module	Communication stop occurs between the absorber control ECU and skid control ECU assembly continuously for 3 seconds or more.	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the absorber control ECU is 10 V or more.	Turn the power switch on (IG) and wait at least 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0124	Lost Communication with Lateral Acceleration Sensor Module	Communication stop occurs between the absorber control ECU and yaw rate sensor continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the absorber control ECU is 10 V or more.	Turn the power switch on (IG) and wait at least 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the absorber control ECU and steering sensor continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the absorber control ECU is 10 V or more.	Turn the power switch on (IG) and wait at least 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0130	Lost Communication with VGRS	Communication stop occurs between the absorber control ECU and front steering control ECU continuously for 3 seconds or more.	All conditions are met: 5 seconds or more elapse after the power switch is on (IG). The power source voltage of the absorber control ECU is 10 V or more.	Turn the power switch on (IG) and wait at least 8 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication with Hybrid Vehicle Control System	Communication stop occurs between the absorber control ECU and hybrid vehicle control ECU assembly continuously for 3 seconds or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the absorber control ECU is 10 V or more. The vehicle speed is 30 km/h (19 mph) or more.	Drive the vehicle for 4 seconds or more at a speed of 30 km/h (19 mph) or more.	-	-	DTC is stored until it is cleared using the GTS.

Parking Brake ECU Assembly / GTS Display "Electric Parking Brake"

Chassis > Electric Parking Brake > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0073	Control Module Communication Bus OFF	The parking brake ECU assembly cannot send and receive data (The bus is off) for approximately 2 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the parking brake ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 2 seconds.	Parking brake warning light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0100	Lost Communication With ECM/PCM "A"	Either of the following conditions is met: Communication stop occurs between the parking brake ECU assembly and ECM continuously for 1 second or more. Communication stop occurs between the parking brake ECU assembly and ECM continuously for 10 seconds or more.	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the parking brake ECU assembly is 10 V or more. The vehicle speed is 15 km/h (9 mph) or more.	Drive the vehicle for 12 seconds or more at a speed of 15 km/h (9 mph) or more.	Parking brake warning light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0124	Lost Communication With Lateral Acceleration Sensor Module	Communication stop occurs between the parking brake ECU assembly and yaw rate sensor continuously for 1 second or more.	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the parking brake ECU assembly is 10 V or more. The vehicle speed is 15 km/h (9 mph) or more.	Drive the vehicle for 3 seconds or more at a speed of 15 km/h (9 mph) or more.	Parking brake warning light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication With Brake System Control Module	Communication stop occurs between the parking brake ECU assembly and skid control ECU assembly continuously for 1 second or more.	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the parking brake ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 3 seconds.	Parking brake warning light illuminates.	-	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication With Hybrid Vehicle Control System	Either of the following conditions is met: Communication stop occurs between the parking brake ECU assembly and hybrid vehicle control ECU assembly continuously for 1 second or more. Communication stop occurs between the parking brake ECU assembly and hybrid vehicle control ECU assembly continuously for 10 seconds or more.	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the parking brake ECU assembly is 10 V or more. The vehicle speed is 15 km/h (9 mph) or more.	Drive the vehicle for 12 seconds or more at a speed of 15 km/h (9 mph) or more.	Parking brake warning light illuminates.	-	DTC is stored until it is cleared using the GTS.

Multiplex Tilt And Telescopic ECU / GTS Display "Tilt&Telescopic"

Body Electrical > Tilt&Telescopic > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U014287	Lost Communication with Body Control Module "B" Missing Message	Communication stop occurs between the multiplex tilt and telescopic ECU and main body ECU (multiplex network body ECU) continuously for approximately 4 seconds or more.	The power source voltage of the multiplex tilt and telescopic ECU is 9 to 11 V.	Wait at least approximately 4 seconds with the power source voltage of the multiplex tilt and telescopic ECU at 9 to 11 V.	-	-	DTC is stored until it is cleared using the GTS.
U015587	Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message	Communication stop occurs between the multiplex tilt and telescopic ECU and combination meter assembly continuously for 10 seconds or more.	The power source voltage of the multiplex tilt and telescopic ECU is 9 to 11 V.	Wait at least approximately 10 seconds with the power source voltage of the multiplex tilt and telescopic ECU at 9 to 11 V.	-	-	DTC is stored until it is cleared using the GTS.
U020887	Lost Communication with "Seat Control Module A" Missing Message	for LHD: Communication stop occurs between the multiplex tilt and telescopic ECU and position control ECU assembly LH continuously for 10 seconds or more. for RHD: Communication stop occurs between the multiplex tilt and telescopic ECU and position control ECU assembly RH continuously for 10 seconds or more.	The power source voltage of the multiplex tilt and telescopic ECU is 9 to 11 V.	Wait at least approximately 10 seconds with the power source voltage of the multiplex tilt and telescopic ECU at 9 to 11 V.	-	-	DTC is stored until it is cleared using the GTS.

Driving Support ECU Assembly (w/ Pre-collision System)

GTS Display "Pre-Collision 2"

Body Electrical > Pre-Collision 2 > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0125	Lost Communication with Yaw Rate Sensor Module	Communication stop occurs between the driving support ECU assembly and yaw rate sensor continuously for approximately 1 second or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 4 seconds.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the driving support ECU assembly and steering sensor continuously for approximately 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 8 seconds.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the driving support ECU assembly and skid control ECU assembly continuously for approximately 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 8 seconds.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	Communication data between the driving support ECU assembly and millimeter wave radar sensor assembly is continuously abnormal for approximately 1 second or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 4 seconds.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U023A	Lost Communication with Image Processing Module "A"	Communication stop occurs between the driving support ECU assembly and forward recognition camera continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 8 seconds.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U0293	Lost Communication with Hybrid Vehicle Control System	Communication stop occurs between the driving support ECU assembly and hybrid vehicle control ECU assembly continuously for 1 second or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). Vehicle speed is 5 km/h (3 mph) or more. The power source voltage of the driving support ECU assembly is 10 V or more.	Drive the vehicle for approximately 4 seconds or more at a speed of 5 km/h (3 mph) or more.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U1002	Lost Communication with Gateway Module	Lost Communication with Gateway Module	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 4 seconds.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
U1104	Lost Communication with Driving Support ECU	Communication stop occurs between driving support ECU assembly and millimeter wave radar sensor assembly continuously for approximately 1 second or more.	All conditions are met: 1 second or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 3 seconds.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
		Communication stop occurs between driving support ECU assembly and skid control ECU assembly continuously for approximately 2 seconds or more.	All conditions are met: 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 4 seconds.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.
		Communication stop occurs between driving support ECU assembly and forward recognition camera continuously for approximately 1 second or more.	The power source voltage of the driving support ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 1 second.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC remains stored only while malfunction is occurring.

GTS Display "Radar Cruise 2"

Powertrain > Radar Cruise2 > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0125	Lost Communication with Yaw Rate Sensor Module	Communication stop occurs between the driving support ECU assembly and yaw rate sensor continuously for approximately 1 second or more.	All conditions are met: The dynamic radar cruise control system is in operation. w/ Full Speed Range Flowing Function: Vehicle speed is 5 km/h (3 mph) or more. w/o Full Speed Range Flowing Function: Vehicle speed is 36 km/h (22 mph) or more. 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	w/ Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 4 seconds or more at a speed of 5 km/h (3 mph) or higher. w/o Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 4 seconds or more at a speed of 36 km/h (22 mph) or higher.	Cruise indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the driving support ECU assembly and steering sensor continuously for approximately 1 second or more.	All conditions are met: The dynamic radar cruise control system is in operation. w/ Full Speed Range Flowing Function: Vehicle speed is 5 km/h (3 mph) or more. w/o Full Speed Range Flowing Function: Vehicle speed is 36 km/h (22 mph) or more. 1 second or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	w/ Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 2 seconds or more at a speed of 5 km/h (3 mph) or higher. w/o Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 2 seconds or more at a speed of 36 km/h (22 mph) or higher.	Cruise indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the driving support ECU assembly and skid control ECU assembly continuously for approximately 2 seconds or more.	All conditions are met: The dynamic radar cruise control system is in operation. w/ Full Speed Range Flowing Function: Vehicle speed is 5 km/h (3 mph) or more. w/o Full Speed Range Flowing Function: Vehicle speed is 36 km/h (22 mph) or more. 2 seconds or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	w/ Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 4 seconds or more at a speed of 5 km/h (3 mph) or higher. w/o Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 4 seconds or more at a speed of 36 km/h (22 mph) or higher.	Cruise indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	Communication data between the driving support ECU assembly and millimeter wave radar sensor assembly is continuously abnormal for approximately 2 seconds or more.	All conditions are met: The dynamic radar cruise control system is in operation. w/ Full Speed Range Flowing Function: Vehicle speed is 5 km/h (3 mph) or more. w/o Full Speed Range Flowing Function: Vehicle speed is 36 km/h (22 mph) or more. 1 second or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	w/ Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 3 seconds or more at a speed of 5 km/h (3 mph) or higher. w/o Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 3 seconds or more at a speed of 36 km/h (22 mph) or higher.	Cruise indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication with Hybrid Vehicle Control System	Communication stop occurs between the driving support ECU assembly and hybrid vehicle control ECU assembly continuously for approximately 1 second or more.	All conditions are met: The dynamic radar cruise control system is in operation. w/ Full Speed Range Flowing Function: Vehicle speed is 5 km/h (3 mph) or more. w/o Full Speed Range Flowing Function: Vehicle speed is 36 km/h (22 mph) or more. 1 second or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	w/ Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 1 second or more at a speed of 5 km/h (3 mph) or higher. w/o Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 1 second or more at a speed of 36 km/h (22 mph) or higher.	Cruise indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1104	Lost Communication with Driving Support ECU	Communication stop occurs between the driving support ECU assembly and millimeter wave radar sensor assembly continuously for approximately 1 second or more.	All conditions are met: The dynamic radar cruise control system is in operation. w/ Full Speed Range Flowing Function: Vehicle speed is 5 km/h (3 mph) or more. w/o Full Speed Range Flowing Function: Vehicle speed is 36 km/h (22 mph) or more. 1 second or more elapse after the power switch is on (IG). The power source voltage of the driving support ECU assembly is 10 V or more.	w/ Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 2 seconds or more at a speed of 5 km/h (3 mph) or higher. w/o Full Speed Range Flowing Function: With the dynamic radar cruise operating, drive the vehicle for approximately 2 seconds or more at a speed of 36 km/h (22 mph) or higher.	Cruise indicator light turns off.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Forward Recognition Camera (w/ Pre-collision System)

GTS Display "Front Recognition Camera"

Chassis > Front Recognition Camera > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the forward recognition camera and ECM continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG). The vehicle speed is 1 km/h (1 mph) or more.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0101	Lost Communication with TCM	Communication stop occurs between the forward recognition camera and hybrid vehicle control ECU assembly continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG). The vehicle speed is 1 km/h (1 mph) or more.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0123	Lost Communication with Yaw Rate Sensor Module	Communication stop occurs between the forward recognition camera and yaw rate sensor continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG). The vehicle speed is 1 km/h (1 mph) or more.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the forward recognition camera and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	-	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the forward recognition camera and skid control ECU assembly continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0134	Lost Communication with DRS Module	Communication stop occurs between the forward recognition camera and rear steering control ECU continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the forward recognition camera and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	Communication stop occurs between the forward recognition camera and millimeter wave radar sensor assembly continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication with Hybrid Vehicle Control System	Communication stop occurs between the forward recognition camera and hybrid vehicle control ECU assembly continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG). The vehicle speed is 1 km/h (1 mph) or more.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	PCS warning light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1104	Lost Communication with Driving Support ECU	Communication stop occurs between the forward recognition camera and driving support ECU assembly continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	PCS warning light blinks.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

GTS Display "LKA/LDA"

Chassis > LKA/LDA > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0101	Lost Communication with TCM	Communication stop occurs between the forward recognition camera and hybrid vehicle control ECU assembly continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG). The vehicle speed is 1 km/h (1 mph) or more.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	The LKA indicator light illuminates (Yellow).	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0123	Lost Communication with Yaw Rate Sensor Module	Communication stop occurs between the forward recognition camera and yaw rate sensor continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG). The vehicle speed is 1 km/h (1 mph) or more.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	The LKA indicator light illuminates (Yellow).	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the forward recognition camera and steering sensor continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	The LKA indicator light illuminates (Yellow).	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the forward recognition camera and skid control ECU assembly continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	The LKA indicator light illuminates (Yellow).	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0130	Lost Communication with Steering Effort Control Module	Communication stop occurs between the forward recognition camera and front steering control ECU continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	The LKA indicator light illuminates (Yellow).	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0131	Lost Communication with Power Steering Control Module	Communication stop occurs between the forward recognition camera and the rack and pinion power steering gear assembly continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	The LKA indicator light illuminates (Yellow).	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0134	Lost Communication with DRS Module	Communication stop occurs between the forward recognition camera and rear steering control ECU continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	The LKA indicator light illuminates (Yellow).	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the forward recognition camera and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	The LKA indicator light illuminates (Yellow).	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module (Combination Meter)	Communication stop occurs between the forward recognition camera and combination meter assembly continuously for 50 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 52 seconds with the IG voltage at 10 V or higher.	The LKA indicator light illuminates (Yellow).	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0235	Lost Communication with Cruise Control Front Distance Range Sensor	Communication stop occurs between the forward recognition camera and millimeter wave radar sensor assembly continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	The LKA indicator light illuminates (Yellow).	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U023A	Lost Communication with Image Processing Module "A"	Communication stop occurs between the forward recognition camera and the rack and pinion power steering gear assembly continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	The LKA indicator light illuminates (Yellow).	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication with Hybrid Vehicle Control System	Communication stop occurs between the forward recognition camera and hybrid vehicle control ECU assembly continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG). The vehicle speed is 1 km/h (1 mph) or more.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	The LKA indicator light illuminates (Yellow).	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U1104	Lost Communication with Driving Support ECU	Communication stop occurs between the forward recognition camera and driving support ECU assembly continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	The LKA indicator light illuminates (Yellow).	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

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

Body Electrical > Road Sign Assist > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0101	Lost Communication with TCM	Communication stop occurs between the forward recognition camera and hybrid vehicle control ECU assembly continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG). The vehicle speed is 1 km/h (1 mph) or more.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0123	Lost Communication with Yaw Rate Sensor Module	Communication stop occurs between the forward recognition camera and yaw rate sensor continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG). The vehicle speed is 1 km/h (1 mph) or more.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the forward recognition camera and skid control ECU assembly continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0134	Lost Communication with DRS Module	Communication stop occurs between the forward recognition camera and rear steering control ECU continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the forward recognition camera and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 7 seconds with the IG voltage at 10 V or higher.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module (Combination Meter)	Communication stop occurs between the forward recognition camera and combination meter assembly continuously for 50 seconds or more.	2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG).	Wait at least approximately 52 seconds with the IG voltage at 10 V or higher.	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication with Hybrid Vehicle Control System	Communication stop occurs between the forward recognition camera and hybrid vehicle control ECU assembly continuously for 5 seconds or more.	All conditions are met: 2 seconds or more have elapsed with the IG voltage at 10 V or higher from the time the power switch is turned on (IG). The vehicle speed is 1 km/h (1 mph) or more.	The vehicle has been driven for approximately 7 seconds or more at a speed of 1 km/h (1 mph) or more and with the IG voltage at 10 V or higher	Master warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Airbag ECU Assembly / GTS Display "SRS Airbag"

Body Electrical > SRS Airbag > Trouble Codes

DTC

Detection Item

DTC Detection Condition

DTC Detection Pre-condition

DTC Check Procedure

Warning Displayed

DTC Storage Method

Indication in Meter

Multi-information Display

U124F

Lost Communication with Pedestrian Protection ECU

Communication stop occurs between the airbag ECU assembly and pedestrian detection ECU assembly continuously for 5 seconds or more.

All conditions are met:

6 seconds or more elapse after the power switch is on (IG).
The power source voltage of the airbag ECU assembly is 10 V or more.

Turn the power switch on (IG) and wait at least 11 seconds.

SRS warning light illuminates.

DTC is stored until it is cleared using the GTS.

Pedestrian Detection ECU Assembly / GTS Display "Pedestrian Protection"

Body Electrical > Pedestrian Protection > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0125	Lost Communication with Yaw Rate G Sensor	Communication stop occurs between the pedestrian detection ECU assembly and yaw rate sensor continuously for 2 seconds or more.	3 seconds or more elapse after the power switch is on (IG).	Turn the power switch on (IG) and wait at least 5 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor	Either of the following conditions is met: Communication stop occurs between the pedestrian detection ECU assembly and steering sensor continuously for 2 seconds or more. Communication stop occurs between the pedestrian detection ECU assembly and steering sensor continuously for 5 seconds or more.	3 seconds or more elapse after the power switch is on (IG).	Turn the power switch on (IG) and wait at least approximately 8 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Either of the following conditions is met: Communication stop occurs between the pedestrian detection ECU assembly and skid control ECU assembly continuously for 2 seconds or more. Communication stop occurs between the pedestrian detection ECU assembly and skid control ECU assembly continuously for 5 seconds or more.	3 seconds or more elapse after the power switch is on (IG).	Turn the power switch on (IG) and wait at least 8 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0130	Lost Communication with Steering Effort Control	Communication stop occurs between the pedestrian detection ECU assembly and front steering control ECU continuously for 2 seconds or more.	3 seconds or more elapse after the power switch is on (IG).	Turn the power switch on (IG) and wait at least 5 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Combination Meter Assembly / GTS Display "Combination Meter"

Body Electrical > Combination Meter > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Either of the following conditions is met: Communication stop occurs between the combination meter assembly and ECM continuously for 2 seconds or more. Communication stop occurs between the combination meter assembly and hybrid vehicle control ECU assembly continuously for 3 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the combination meter assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 3 seconds.	MIL (Check engine warning light) illuminates.	-	DTC is stored until it is cleared using the GTS.
U0103	Lost Communication with Gear Shift Module "A"	Communication stop occurs between the combination meter assembly and shift control ECU continuously for 5 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the combination meter assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 5 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the combination meter assembly and skid control ECU assembly continuously for 5 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the combination meter assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 5 seconds.	ABS warning light illuminates. VSC OFF indicator light illuminates. Brake warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0130	Lost Communication with VGRS	Communication stop occurs between the combination meter assembly and front steering control ECU continuously for 3 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the combination meter assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 3 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0131	Lost Communication with Power Steering Control Module	Communication stop occurs between the combination meter assembly and the rack and pinion power steering gear assembly continuously for 3 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the combination meter assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 3 seconds.	EPS warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0134	Lost Communication with DRS Module	Communication stop occurs between the combination meter assembly and rear steering control ECU continuously for 3 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the combination meter assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 3 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	Either of the following conditions is met: Communication stop occurs between the combination meter assembly and main body ECU (multiplex network body ECU) continuously for 3 seconds or more. Communication stop occurs between the combination meter assembly and tire pressure warning ECU and receiver continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the combination meter assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0151	Lost Communication with Restraints Control Module	Communication stop occurs between the combination meter assembly and airbag ECU assembly continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the combination meter assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	SRS warning light illuminates.	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0163	Lost Communication With Navigation Control Module	Communication stop occurs between the combination meter assembly and radio receiver assembly continuously for 3 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the combination meter assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 3 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0182	Lost Communication with Lighting Control Module Front	Communication stop occurs between the combination meter assembly and No. 1 headlight ECU sub-assembly LH continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the combination meter assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U023A	Lost Communication with Front Camera Module	Communication stop occurs between the combination meter assembly and forward recognition camera continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the combination meter assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1104	Lost Communication with Driving Support ECU	Communication stop occurs between the combination meter assembly and driving support ECU assembly continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the combination meter assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	PCS warning light illuminates.	-	DTC is stored until it is cleared using the GTS.

Meter Mirror Sub-assembly / GTS Display "Head Up Display" (w/ Headup Display System)

Body Electrical > Head Up Display > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U010087	Lost Communication with ECM/PCM "A" Missing Message	Communication stop occurs between the meter mirror sub-assembly and ECM continuously for approximately 4 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the meter mirror sub-assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 7 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U010387	Lost Communication with Gear Shift Control Module "A" Missing Message	Communication stop occurs between the meter mirror sub-assembly and shift control ECU continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the meter mirror sub-assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 8 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U012987	Lost Communication with Brake System Control Module Missing Message	Communication stop occurs between the meter mirror sub-assembly and skid control ECU assembly continuously for approximately 4 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the meter mirror sub-assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least approximately 7 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U014287	Lost Communication with Body Control Module "B" Missing Message	Communication stop occurs between the meter mirror sub-assembly and main body ECU (multiplex network body ECU) continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the meter mirror sub-assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 8 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U015587	Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message	Communication stop occurs between the meter mirror sub-assembly and combination meter assembly continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the meter mirror sub-assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 8 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U016387	Lost Communication with Navigation Control Module Missing Message	Communication stop occurs between the meter mirror sub-assembly and radio receiver assembly continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the meter mirror sub-assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 8 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U023A87	Lost Communication with Image Processing Module "A" Missing Message	Communication stop occurs between the meter mirror sub-assembly and forward recognition camera continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the meter mirror sub-assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 8 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U029387	Lost Communication with Hybrid/EV Powertrain Control Module Missing Message	Either of the following conditions is met: Communication stop occurs between the meter mirror sub-assembly and hybrid vehicle control ECU assembly continuously for approximately 4 seconds or more. Communication stop occurs between the meter mirror sub-assembly and the hybrid vehicle control ECU assembly continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the meter mirror sub-assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 8 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U110487	Lost Communication with Driving Support ECU Missing Message	Either of the following conditions is met: Communication stop occurs between the meter mirror sub-assembly and driving support ECU assembly continuously for approximately 4 seconds or more. Communication stop occurs between the meter mirror sub-assembly and driving support ECU assembly continuously for approximately 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the meter mirror sub-assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least approximately 8 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U111087	Lost Communication with Intuitive Parking Assist Module Missing Message	Communication stop occurs between the meter mirror sub-assembly and clearance warning ECU assembly continuously for 5 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the meter mirror sub-assembly is 10.5 V or more.	Turn the power switch on (IG) and wait at least 8 seconds.	-	-	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

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication With ECM/PCM "A"	Communication stop occurs between the main body ECU (multiplex network body ECU) and ECM continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0101	Lost Communication with TCM	Communication stop occurs between the main body ECU (multiplex network body ECU) and hybrid vehicle control ECU assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0120	Lost Communication With Starter / Generator Control Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and certification ECU (smart key ECU assembly) continuously for 10 seconds or more.	All conditions are met: Approximately 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and steering sensor continuously for 10 seconds or more.	All conditions are met: Approximately 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and skid control ECU assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0151	Lost Communication with Restraints Control Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and airbag ECU assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and combination meter assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0163	Lost Communication with Navigation Control Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and radio receiver assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0164	Lost Communication with HVAC Control Module	Communication stop occurs between main body ECU (multiplex network body ECU) and air conditioning amplifier assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0182	Lost Communication with AFS	Communication stop occurs between the main body ECU (multiplex network body ECU) and No. 1 headlight ECU sub-assembly LH continuously for 10 seconds or more.	Approximately 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0199	Lost Communication with "Door Control Module A"	Communication stop occurs between the main body ECU (multiplex network body ECU) and front multiplex network door ECU LH continuously for 10 seconds or more.	Approximately 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0200	Lost Communication with "Door Control Module B"	Communication stop occurs between the main body ECU (multiplex network body ECU) and front multiplex network door ECU RH continuously for 10 seconds or more.	Approximately 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0208	Lost Communication with "Seat Control Module A"	for LHD: Communication stop occurs between the main body ECU (multiplex network body ECU) and position control ECU assembly LH continuously for 10 seconds or more. for RHD: Communication stop occurs between the main body ECU (multiplex network body ECU) and position control ECU assembly RH continuously for 10 seconds or more.	Approximately 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0209	Lost Communication with "Seat Control Module B"	for LHD: Communication stop occurs between the main body ECU (multiplex network body ECU) and position control ECU assembly RH continuously for 10 seconds or more. for RHD: Communication stop occurs between the main body ECU (multiplex network body ECU) and position control ECU assembly LH continuously for 10 seconds or more.	Approximately 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U023A	Lost Communication With Image Processing Module "A"	Communication stop occurs between the main body ECU (multiplex network body ECU) and forward recognition camera continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication with Hybrid Powertrain Control Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and hybrid vehicle control ECU assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0327	Software Incompatibility with Vehicle Security Control Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and certification ECU (smart key ECU assembly) continuously for approximately 10 seconds or more.	All conditions are met: Approximately 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1106	Lost Communication with Electric Parking Brake Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and parking brake ECU assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1115	Communication with Tilt & Telescopic Module	Communication stop occurs between the main body ECU (multiplex network body ECU) and the multiplex tilt and telescopic ECU continuously for 10 seconds or more.	Approximately 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1117	Lost Communication with Accessory Gateway	Communication stop occurs between main body ECU (multiplex network body ECU) and bus buffer ECU continuously for 10 seconds or more.	All conditions are met: Approximately 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the main body ECU (multiplex network body ECU) is 10.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Radio Receiver Assembly / GTS Display "Navigation System"

Body Electrical > Navigation System > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0073	Sending Malfunction (Navigation to APGS)	The radio receiver assembly is unable to send or receive data consecutively.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 3 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0100	Engine ECU Communication	Communication stop occurs between the radio receiver assembly and ECM continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0129	VSC(ECB)ECU Communication	Communication stop occurs between radio receiver assembly and skid control ECU assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0129	VSC(ECB)ECU Communication	Communication stop occurs between the radio receiver assembly and skid control ECU assembly at vehicle speed of 20 km/h (12 mph) or more continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more. The vehicle speed is 20 km/h (12 mph) or more.	Drive the vehicle for 20 seconds or more at a speed of 20 km/h (12 mph) or more.	-	-	DTC is stored until it is cleared using the GTS.
U0132	Air Suspension ECU Communication	Communication stop occurs between the radio receiver assembly and absorber control ECU at vehicle speed of 20 km/h (12 mph) or more continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more. The vehicle speed is 20 km/h (12 mph) or more.	Drive the vehicle for 20 seconds or more at a speed of 20 km/h (12 mph) or more.	-	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	Communication stop occurs between the radio receiver assembly and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0155	Meter ECU Communication	Communication stop occurs between the radio receiver assembly and combination meter assembly continuously for 30 seconds or more.	All conditions are met: 30 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 60 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0164	Air Conditioner ECU Communication	Communication stop occurs between the radio receiver assembly and air conditioning amplifier assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0198	Lost Communication with Telematic Control Module	Communication stop occurs between the radio receiver assembly and telephone transceiver assembly continuously for 3 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 13 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0208	Lost Communication with "Seat Control Module A"	for LHD: Communication stop occurs between the radio receiver assembly and position control ECU assembly LH continuously for 15 seconds or more. for RHD: Communication stop occurs between the radio receiver assembly and position control ECU assembly RH continuously for 15 seconds or more.	All conditions are met: 15 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 30 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0209	Lost Communication with "Seat Control Module B"	for LHD: Communication stop occurs between the radio receiver assembly and position control ECU assembly RH continuously for 15 seconds or more. for RHD: Communication stop occurs between the radio receiver assembly and position control ECU assembly LH continuously for 15 seconds or more.	All conditions are met: 15 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 30 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0265	Lost Communication with Image Processing Sensor A	Communication stop occurs between the radio receiver assembly and television camera assembly continuously for approximately 12 seconds or more.	All conditions are met: Approximately 12 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 24 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0293	HV ECU Communication	Communication stop occurs between the radio receiver assembly and hybrid vehicle control ECU assembly continuously for approximately 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
		Communication stop occurs between the radio receiver assembly and hybrid vehicle control ECU assembly continuously for 11 seconds or more.	All conditions are met: 11 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 22 seconds.	-	-	DTC is stored until it is cleared using the GTS.
		Communication stop occurs between the radio receiver assembly and hybrid vehicle control ECU assembly at vehicle speed of 20 km/h (12 mph) or more continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more. The vehicle speed is 20 km/h (12 mph) or more.	Drive the vehicle for 20 seconds or more at a speed of 20 km/h (12 mph) or more.	-	-	DTC is stored until it is cleared using the GTS.
U1110	Clearance Sonar ECU Communication	Communication stop occurs between the radio receiver assembly and clearance warning ECU assembly continuously for approximately 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the radio receiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Telephone Transceiver Assembly / GTS Display "Navigation System" (w/ Telematics System)

Body Electrical > Navigation System > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0140	Lost Communication with Body Control Module "B"	Communication stop occurs between the telephone transceiver assembly and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: The power switch is on (IG) for 10 seconds or more. The power source voltage of the telephone transceiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
			All conditions are met: Approximately 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the telephone transceiver assembly is 9.5 V or more.		-	-	DTC is stored until it is cleared using the GTS.
		The telephone transceiver assembly is unable to receive data from the main body ECU (multiplex network body ECU) for 1 second or more 2 times consecutively.	All conditions are met: Approximately 10 seconds or more elapse after a power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the telephone transceiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between the telephone transceiver assembly and combination meter assembly continuously for 10 seconds or more.	All conditions are met: The power switch is on (IG) for 10 seconds or more. The power source voltage of the telephone transceiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0155		The telephone transceiver assembly is unable to receive data from the main body ECU (multiplex network body ECU) for 1 second or more 2 times consecutively.	All conditions are met: The power switch is on (IG) for 10 seconds or more. The power source voltage of the telephone transceiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0163	Lost Communication with Navigation Control Module	Communication stop occurs between the telephone transceiver assembly and radio receiver assembly continuously for 10 seconds or more.	All conditions are met: The power switch is on (IG) for 10 seconds or more. The power source voltage of the telephone transceiver assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Stereo Component Equalizer Assembly / GTS Display "Active Noise Control"

Body Electrical > Active Noise Control > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U010087	Lost Communication with ECM/PCM "A" Missing Message	Communication stop occurs between the stereo component equalizer assembly and ECM continuously for 1 second or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the stereo component equalizer assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U012987	Lost Communication with Brake System Control Module Missing Message	Communication stop occurs between the stereo component equalizer assembly and skid control ECU assembly continuously for 1 second or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the stereo component equalizer assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U014087	Lost Communication with Body Control Module Missing Message	Communication stop occurs between the stereo component equalizer assembly and main body ECU (multiplex network body ECU) continuously for 3 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the stereo component equalizer assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 6 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U016487	Lost Communication with HVAC Control Module Missing Message	Communication stop occurs between the stereo component equalizer assembly and air conditioning amplifier assembly continuously for 25 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the stereo component equalizer assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 28 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U029387	Lost Communication with Hybrid Powertrain Control Module Missing Message	Communication stop occurs between the stereo component equalizer assembly and hybrid vehicle control ECU assembly continuously for 1 second or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the stereo component equalizer assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U115187	Lost Communication with Hybrid Powertrain Control Module (C-Bus) Missing Message	Communication stop occurs between the stereo component equalizer assembly and hybrid vehicle control ECU assembly continuously for 6 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the stereo component equalizer assembly is 9.5 V or more.	Turn the power switch on (IG) and wait at least 9 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Air Conditioning Amplifier Assembly / GTS Display "Air Conditioner"

Body Electrical > Air Conditioner > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0131	Lost Communication With Power Steering Control Module	Communication stop occurs between the air conditioning amplifier assembly and the rack and pinion power steering gear assembly continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication With Body Control Module "B"	Communication stop occurs between the air conditioning amplifier assembly and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0151	Lost Communication With Restraints Control Module	Communication stop occurs between the air conditioning amplifier assembly and airbag ECU assembly continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication With Restraints Control Module	Communication stop occurs between the air conditioning amplifier assembly and combination meter assembly continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0163	Lost Communication With Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between the air conditioning amplifier assembly and radio receiver assembly continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication With HV ECU	Communication stop occurs between the air conditioning amplifier assembly and hybrid vehicle control ECU assembly continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the air conditioning amplifier assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Television Camera Assembly / GTS Display "IPA/Parking Assist Monitor"

Chassis > IPA/Parking Assist Monitor > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Communication stop occurs between the television camera assembly and ECM continuously for 11 seconds or more.	3 seconds or more elapse after the power switch is on (IG).	Turn the power switch on (IG) and wait at least 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the television camera assembly and steering sensor continuously for 11 seconds or more.	3 seconds or more elapse after the power switch is on (IG).	Turn the power switch on (IG) and wait at least 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0130	Lost Communication with Steering Effort Control Module	Communication stop occurs between the television camera assembly and front steering control ECU continuously for 11 seconds or more.	3 seconds or more elapse after the power switch is on (IG).	Turn the power switch on (IG) and wait at least 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	Communication stop occurs between the television camera assembly and main body ECU (multiplex network body ECU) continuously for 11 seconds or more.	3 seconds or more elapse after the power switch is on (ACC).	Turn the power switch on (ACC) and wait at least 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0163	Lost Communication with Navigation Control Module	Communication stop occurs between the television camera assembly and radio receiver assembly continuously for 11 seconds or more.	3 seconds or more elapse after the power switch is on (ACC).	Turn the power switch on (ACC) and wait at least 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0233	Lost Communication with Blind Spot Monitor Master Module	Communication stop occurs between the television camera assembly and blind spot monitor sensor RH continuously for 11 seconds or more.	3 seconds or more elapse after the power switch is on (IG).	Turn the power switch on (IG) and wait at least 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1110	Lost Communication with Intuitive Parking Assist Module	Communication stop occurs between the television camera assembly and clearance warning ECU assembly continuously for 11 seconds or more.	3 seconds or more elapse after the power switch is on (IG).	Turn the power switch on (IG) and wait at least 14 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Clearance Warning ECU Assembly / GTS Display "Clearance Sonar"

Body Electrical > Clearance Sonar > Trouble Codes

DTC

Detection Item

DTC Detection Condition

DTC Detection Pre-condition

DTC Check Procedure

Warning Displayed

DTC Storage Method

Indication in Meter

Multi-information Display

U0101

Lost Communication with TCM

Communication stop occurs between clearance warning ECU assembly and hybrid vehicle control ECU assembly continuously for 5 seconds or more.

All conditions are met:

5 seconds or more elapse after the power switch is on (IG).
The power source voltage of the clearance warning ECU assembly is 10.2 V or more.

Turn the power switch on (IG) and wait at least 10 seconds.

DTC is stored until it is cleared using the GTS.

U0155

Lost Communication With Instrument Panel Cluster (IPC) Control Module

Communication stop occurs between clearance warning ECU assembly and combination meter assembly continuously for 5 seconds or more.

All conditions are met:

5 seconds or more elapse after the power switch is on (IG).
The power source voltage of the clearance warning ECU assembly is 10.2 V or more.

Turn the power switch on (IG) and wait at least 10 seconds.

DTC is stored until it is cleared using the GTS.

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

Body Electrical > Blind Spot Monitor Master > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0125	Lost Communication with Yaw Rate Sensor Module	Communication stop occurs between the blind spot monitor sensor RH and yaw rate sensor continuously for approximately 4 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the blind spot monitor sensor RH is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 7 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the blind spot monitor sensor RH and steering sensor continuously for approximately 4 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the blind spot monitor sensor RH is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 7 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the blind spot monitor sensor RH and skid control ECU assembly continuously for approximately 4 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the blind spot monitor sensor RH is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 7 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the blind spot monitor sensor RH and main body ECU (multiplex network body ECU) continuously for approximately 11 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the blind spot monitor sensor RH is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 14 seconds.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication with HV ECU	Communication stop occurs between the blind spot monitor sensor RH and hybrid vehicle control ECU assembly continuously for approximately 11 seconds or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the blind spot monitor sensor RH is 10 V or more. Vehicle speed is 5 km/h (3 mph) or more.	Drive the vehicle for approximately 14 seconds or more at a speed of 5 km/h (3 mph) or more.	-	Displays messages on the multi-information display.	DTC is stored until it is cleared using the GTS.

Certification ECU (Smart Key ECU Assembly)

GTS Display "Entry&Start"

Body Electrical > Entry&Start > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication With ECM/PCM "A"	Communication stop occurs between the certification ECU (smart key ECU assembly) and ECM continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between the certification ECU (smart key ECU assembly) and combination meter assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0199	Lost Communication with "Door Control Module A"	Communication stop occurs between the certification ECU (smart key ECU assembly) and front multiplex network door ECU RH continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0200	Communication with "Door Control Module B"	Communication stop occurs between the certification ECU (smart key ECU assembly) and front multiplex network door ECU LH continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication With Hybrid Vehicle Control System	Communication stop occurs between the certification ECU (smart key ECU assembly) and hybrid vehicle control ECU assembly continuously for 10 seconds or more.	All conditions are met: 10 seconds or more elapse after the power switch is on (IG). The power source voltage of the certification ECU (smart key ECU assembly) is 10 V or more.	Turn the power switch on (IG) and wait at least 20 seconds.	-	-	DTC is stored until it is cleared using the GTS.

GTS Display "Power Source Control"

Body Electrical > Power Source Control > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0103	Lost Communication with Gear Shift Module "A"	Communication stop occurs between the certification ECU (smart key ECU assembly) and shift control ECU continuously for approximately 4 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or more.	Turn the power switch on (IG) and wait at least 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0129	Vehicle Speed Signal Communication	Communication stop occurs between the certification ECU (smart key ECU assembly) and skid control ECU assembly continuously for approximately 4 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or more.	Turn the power switch on (IG) and wait at least 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0140	Lost Communication with Body Control Module	Communication stop occurs between the certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU) continuously for approximately 3 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 3 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between the certification ECU (smart key ECU assembly) and combination meter assembly continuously for approximately 4 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0293	HV ECU Communication	Communication stop occurs between the certification ECU (smart key ECU assembly) and hybrid vehicle control ECU assembly continuously for approximately 4 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or more.	Turn the power switch on (IG) and wait at least approximately 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1117	Lost Communication with Accessory Gateway	Communication stop occurs between the certification ECU (smart key ECU assembly) and bus buffer ECU continuously for approximately 5 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the certification ECU (smart key ECU assembly) is 9.5 V or more. After turning the power switch on (IG), the certification ECU (smart key ECU assembly) receives a data from the bus buffer ECU or ECM 1 time or more.	Turn the power switch on (IG) and wait at least approximately 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.

Sub-battery with Control Assembly / GTS Display "Sub Battery Module"

Body Electrical > Sub Battery Module > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0100	Lost Communication with ECM/PCM "A"	Either of the following conditions is met: Communication stop occurs between the sub-battery with control assembly and hybrid vehicle control ECU assembly continuously for approximately 2 seconds or more. DLC error is detected in data received from the hybrid vehicle control ECU assembly. Checksum error is detected in data received from the hybrid vehicle control ECU assembly.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the sub-battery with control assembly is 10 V or more. After turning the power switch on (IG), the sub-battery with control assembly receives a data from the hybrid vehicle control ECU assembly or ECM 1 time or more.	Turn the power switch on (IG) and wait at least approximately 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0129	Lost Communication with Brake System Control Module	Either of the following conditions is met: Communication stop occurs between the sub-battery with control assembly and skid control ECU assembly continuously for approximately 1 second or more. DLC error is detected in data received from the skid control ECU assembly. Checksum error is detected in data received from the skid control ECU assembly.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the sub-battery with control assembly is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0164	Lost Communication with HVAC Control Module	When conditions 1 and 2 are continuously met: Either of the following conditions is met: Communication stop occurs between the sub-battery with control assembly and the air conditioning amplifier assembly continuously for 10 seconds or more. DLC error is detected in data received from the air conditioning amplifier assembly. After the power switch is turned from off to on (IG), sub-battery with control assembly receive malfunction data from the air conditioning amplifier assembly or hybrid vehicle control ECU assembly 1 time or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the sub-battery with control assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 13 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U0293	Lost Communication with Hybrid Powertrain Control Module	When conditions 1 and 2 are continuously met: Either of the following conditions is met: Communication stop occurs between the sub-battery with control assembly and hybrid vehicle control ECU assembly continuously for approximately 1 second or more. DLC error is detected in data received from the hybrid vehicle control ECU assembly. Checksum error is detected in data received from the hybrid vehicle control ECU assembly. After the power switch is turned from off to on (IG), sub-battery with control assembly receive data from the hybrid vehicle control ECU assembly 1 time or more.	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the sub-battery with control assembly is 10 V or more. After turning the power switch on (IG), the sub-battery with control assembly receives a data from the hybrid vehicle control ECU assembly or ECM 1 time or more.	Turn the power switch on (IG) and wait at least approximately 4 seconds.	-	-	DTC is stored until it is cleared using the GTS.
U1107	Lost Communication with Power Management Module	When conditions 1 and 2 are continuously met: Communication stop occurs between the sub-battery with control assembly and the certification ECU (smart key ECU assembly) continuously for approximately 2 seconds or more. DLC error is detected in data received from the certification ECU (smart key ECU assembly).	All conditions are met: 3 seconds or more elapse after the power switch is on (IG). The power source voltage of the sub-battery with control assembly is 10 V or more.	Turn the power switch on (IG) and wait at least approximately 5 seconds.	-	-	DTC is stored until it is cleared using the GTS.

No. 1 Headlight ECU Sub-assembly LH / GTS Display "HL AutoLeveling"

Body Electrical > HL AutoLeveling > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0073	Control Module Communication Bus Off	Bus off condition is detected.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly LH is 10 to 16 V.	The power switch on (IG).	-	-	DTC remains stored only while malfunction is occurring.
U0101	Lost Communication with TCM	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and hybrid vehicle control ECU assembly continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly LH is 10 to 16 V.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and steering sensor continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly LH is 10 to 16 V.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and skid control ECU assembly continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly LH is 10 to 16 V.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0130	Lost Communication with Steering Effort Control Module	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and front steering control ECU continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly LH is 10 to 16 V.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0132	Lost Communication with Ride Level Control Module	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and absorber control ECU continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly LH is 10 to 16 V.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly LH is 10 to 16 V.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and combination meter assembly continuously for 30 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly LH is 10 to 16 V.	Turn the power switch on (IG) and wait at least 30 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0242	Lost Communication With Headlamp Control Module "B"	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and the No. 1 headlight ECU sub-assembly RH continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly LH is 10 to 16 V.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0293	Lost Communication with Hybrid Vehicle Control System	Communication stop occurs between the No. 1 headlight ECU sub-assembly LH and hybrid vehicle control ECU assembly continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly LH is 10 to 16 V.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.

No. 1 Headlight ECU Sub-assembly RH / GTS Display "HL AutoLeveling (Sub)"

Body Electrical > HL AutoLeveling (Sub) > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0073	Control Module Communication Bus Off	Bus off condition is detected.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly RH is 10 to 16 V.	The power switch on (IG).	-	-	DTC remains stored only while malfunction is occurring.
U0126	Lost Communication with Steering Angle Sensor Module	Communication stop occurs between the No. 1 headlight ECU sub-assembly RH and steering sensor continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly RH is 10 to 16 V.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between the No. 1 headlight ECU sub-assembly RH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly RH is 10 to 16 V.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between the No. 1 headlight ECU sub-assembly RH and combination meter assembly continuously for 30 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly RH is 10 to 16 V.	Turn the power switch on (IG) and wait at least 30 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0182	Lost Communication With Lighting Control Module Front	Communication stop occurs between the No. 1 headlight ECU sub-assembly RH and No. 1 headlight ECU sub-assembly LH continuously for 10 seconds or more.	All conditions are met: The power switch on (IG). The power source voltage of the No. 1 headlight ECU sub-assembly RH is 10 to 16 V.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.

Front Multiplex Network Door ECU LH / GTS Display "Front Left Door"

Body Electrical > Front Left Door > Trouble Codes

DTC

Detection Item

DTC Detection Condition

DTC Detection Pre-condition

DTC Check Procedure

Warning Displayed

DTC Storage Method

Indication in Meter

Multi-information Display

U0142

Lost Communication With Body Control Module "B"

Communication stop occurs between the front multiplex network door ECU LH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

All conditions are met:

A power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).
The power source voltage of the front multiplex network door ECU LH is 10 V or more.

Turn the power switch on (IG) and wait at least 10 seconds.

DTC is stored until it is cleared using the GTS.

Front Multiplex Network Door ECU RH / GTS Display "Front Right Door"

Body Electrical > Front Right Door > Trouble Codes

DTC

Detection Item

DTC Detection Condition

DTC Detection Pre-condition

DTC Check Procedure

Warning Displayed

DTC Storage Method

Indication in Meter

Multi-information Display

U0142

Lost Communication With Body Control Module "B"

Communication stop occurs between the front multiplex network door ECU RH and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.

All conditions are met:

A power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off).
The power source voltage of the front multiplex network door ECU RH is 10 V or more.

Turn the power switch on (IG) and wait at least 10 seconds.

DTC is stored until it is cleared using the GTS.

Tire Pressure Warning ECU and Receiver / GTS Display "Tire Pressure Monitor"

Chassis > Tire Pressure Monitor > Trouble Codes

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

Spoiler Control ECU Assembly / GTS Display "Active Rear Wing" (w/ Active Rear Wing)

Body Electrical > Active Rear Wing > Trouble Codes

DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Warning Displayed		DTC Storage Method
DTC	Detection Item	DTC Detection Condition	DTC Detection Pre-condition	DTC Check Procedure	Indication in Meter	Multi-information Display	DTC Storage Method
U0101	Lost Communication with TCM	Communication stop occurs between the spoiler control ECU assembly and hybrid vehicle control ECU assembly continuously for 10 seconds or more.	All conditions are met: A power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the spoiler control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0129	Lost Communication with Brake System Control Module	Communication stop occurs between spoiler control ECU assembly and skid control ECU assembly continuously for 10 seconds or more.	All conditions are met: A power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the spoiler control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0142	Lost Communication with Body Control Module "B"	Communication stop occurs between spoiler control ECU assembly and main body ECU (multiplex network body ECU) continuously for 10 seconds or more.	All conditions are met: A power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the spoiler control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	Communication stop occurs between spoiler control ECU assembly and combination meter assembly continuously for 10 seconds or more.	All conditions are met: A power source mode change is detected (+B changes from off to on, ACC changes between on and off, or IG changes between on and off). The power source voltage of the spoiler control ECU assembly is 10 V or more.	Turn the power switch on (IG) and wait at least 10 seconds.	-	-	DTC remains stored only while malfunction is occurring.

Millimeter Wave Radar Sensor Assembly / GTS Display "-" (w/ Pre-collision System)

Tech Tips

The millimeter wave radar sensor assembly is connected to the CAN communication system, but the millimeter wave radar sensor assembly does not store or output CAN communication DTCs.
Position Control ECU Assembly LH

Tech Tips

The position control ECU assembly LH is connected to the CAN communication system, but the position control ECU assembly LH does not store or output CAN communication DTCs.
1. GTS Display "Driver Seat" (for LHD)
2. GTS Display "Passenger Seat" (for RHD)
Position Control ECU Assembly RH

Tech Tips

The position control ECU assembly RH is connected to the CAN communication system, but the position control ECU assembly RH does not store or output CAN communication DTCs.
1. GTS Display "Passenger Seat" (for LHD)
2. GTS Display "Driver Seat" (for RHD)
Steering Sensor / GTS Display "Steering Angle Sensor"

Tech Tips

The steering sensor is connected to the CAN communication system, but the steering sensor does not store or output CAN communication DTCs.
Yaw Rate Sensor / GTS Display "-"

Tech Tips

The yaw rate sensor is connected to the CAN communication system, but the yaw rate sensor does not store or output CAN communication DTCs.
Bus Buffer ECU / GTS Display "-" (w/ Bus Buffer ECU)

Tech Tips

The bus buffer ECU is connected to the CAN communication system, but the bus buffer ECU does not store or output CAN communication DTCs.
Central Gateway ECU (Network Gateway ECU) / GTS Display "Central Gateway"

Tech Tips

The central gateway ECU (network gateway ECU) is connected to the CAN communication system, but the central gateway ECU (network gateway ECU) does not store or output CAN communication DTCs.

CAN BUS WAVEFORMS

Tech Tips

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

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

CAN bus waveforms (Group 1)


*a	1 V/DIV.
*b	50 μs/DIV.

Normal waveform


*a	1 V/DIV.
*b	50 μs/DIV.

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

Tech Tips

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


*a	1 V/DIV.
*b	50 μs/DIV.

Short between the CAN bus lines (CANH and CANL)

Tech Tips

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

CAN bus waveforms (reference) (Group 2)

Note

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


*a	1 V/DIV.
*b	50 μs/DIV.

Open in a CAN branch line (CANH)

Tech Tips

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


*a	1 V/DIV.
*b	50 μs/DIV.

Open in a CAN branch line (CANL)

Tech Tips

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


*a	1 V/DIV.
*b	50 μs/DIV.

Open in a CAN main bus line (CANH)

Tech Tips

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


*a	1 V/DIV.
*b	50 μs/DIV.

Short between a CAN bus line (CANH) and ground

Tech Tips

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


*a	1 V/DIV.
*b	50 μs/DIV.

Short between a CAN bus line (CANL) and ground

Tech Tips

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

DATA SENDING/RECEIVING TABLE

Data sending/receiving table

Tech Tips

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

Data content	Data Detected and Sent by	Relevant Data List Item		Relevant Data List Item
Data content	Data Detected and Sent by	Can be Checked in Data List	Cannot be Checked in Data List	Selected System*3	Data List Items
Engine speed	ECM	Meter mirror sub-assembly Combination meter assembly Rack and pinion power steering gear assembly Hybrid vehicle control ECU assembly Battery ECU assembly Inverter with converter assembly	Air conditioning amplifier assembly Main body ECU (multiplex network body ECU) Certification ECU (smart key ECU assembly) Airbag ECU assembly Skid control ECU assembly ECU Pedestrian detection ECU assembly Front steering control ECU Stereo component equalizer assembly Radio receiver assembly Yaw rate sensor	Engine	Engine Speed
				Head Up Display	Engine RPM
				Combination Meter	Engine Rpm
				EPMS	Engine Revolution
				Air suspension	Engine Speed
				Hybrid Control	Engine Speed
				Motor Generator	Engine Speed
				HV Battery	Engine Speed
Engine coolant temperature	ECM	Air conditioning amplifier assembly Combination meter assembly Battery ECU assembly Inverter with converter assembly	Rack and pinion power steering gear assembly Radio receiver assembly	Engine	Coolant Temperature
				Air Conditioner	Engine Coolant Temp
				Combination Meter	Coolant Temperature
				Motor Generator	Coolant Temperature
				HV Battery	Coolant Temperature
Shift position	Hybrid vehicle control ECU assembly	Position control ECU assembly LH Position control ECU assembly RH Parking brake ECU assembly Blind spot monitor sensor RH Clearance warning ECU assembly Radio receiver assembly Certification ECU (smart key ECU assembly) Battery ECU assembly	Main body ECU (multiplex network body ECU) No. 1 headlight ECU sub-assembly LH Combination meter assembly*1 Airbag ECU assembly Pedestrian detection ECU assembly Tire pressure warning ECU and receiver Front steering control ECU Television camera assembly Driving support ECU assembly Forward recognition camera Yaw rate sensor	Hybrid Control	Shift Position
				Navigation System	Reverse Signal
				Power Source Control	Shift P Signal
				Driver Seat	Shift SW Position
				Passenger Seat	Shift SW Position
				Electric Parking Brake	Shift Position
				Blind Spot Monitor Master	Reverse (Only for AT/CVT)
				Clearance Sonar	Reverse Signal
				HV Battery	Shift Position
Stop light switch signal	Hybrid vehicle control ECU assembly	Skid control ECU assembly Absorber control ECU Certification ECU (smart key ECU assembly)	Main body ECU (multiplex network body ECU) Combination meter assembly Airbag ECU assembly Pedestrian detection ECU assembly Radio receiver assembly	Hybrid Control	Stop Light Switch
				ABS/VSC/TRC	Stop Light SW
				Air suspension	Stop Light Switch
				Power Source Control	Stop Light Switch1
				Electric Parking Brake	Stop Light Switch
Wheel speed	Skid control ECU assembly	Skid control ECU assembly Absorber control ECU No. 1 headlight ECU sub-assembly LH Hybrid vehicle control ECU assembly Parking brake ECU assembly Rack and pinion power steering gear assembly	Airbag ECU assembly Rack and pinion power steering gear assembly Pedestrian detection ECU assembly Front steering control ECU Blind spot monitor sensor RH Driving support ECU assembly Forward recognition camera Stereo component equalizer assembly Radio receiver assembly	ABS/VSC/TRC	FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed
				Air suspension	FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed
				EPMS	Wheel Speed Right Wheel Speed Left
				HL AutoLeveling	Front Right Wheel Speed Value Front Left Wheel Speed Value
				Electric Parking Brake	FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed
				Hybrid Control	FR Wheel Speed FL Wheel Speed RR Wheel Speed RL Wheel Speed
Vehicle speed	Skid control ECU assembly	Front steering control ECU Meter mirror sub-assembly Combination meter assembly Spoiler control ECU assembly Rear steering control ECU Hybrid vehicle control ECU assembly Parking brake ECU assembly Rack and pinion power steering gear assembly Driving support ECU assembly Radio receiver assembly Shift control ECU ECU Position control ECU assembly LH Position control ECU assembly RH No. 1 headlight ECU sub-assembly LH Tire pressure warning ECU and receiver Blind spot monitor sensor RH Inverter with converter assembly	Main body ECU (multiplex network body ECU) Certification ECU (smart key ECU assembly) Airbag ECU assembly Pedestrian detection ECU assembly Forward recognition camera Stereo component equalizer assembly Sub-battery with control assembly	ABS/VSC/TRC	Vehicle Speed
				VGRS	Vehicle Speed
				Navigation System	Vehicle Speed
				Engine	Vehicle Speed
				Combination Meter	Vehicle Speed Meter
				EPMS	Meter Vehicle Velocity
				Driver Seat	Vehicle Speed
				Passenger Seat	Vehicle Speed
				HL AutoLeveling	Vehicle Speed
				Electric Parking Brake	Vehicle Speed
				Tire Pressure Monitor	Vehicle Speed
				Blind Spot Monitor Master	Vehicle Speed
				Radar Cruise 2	Vhcl Spd-Brake ECU
				Hybrid Control	Vehicle Speed
				Head Up Display	Vehicle Speed Meter
				Active Rear Wing	Vehicle Speed
				Motor Generator	Vehicle Speed
				DRS	Vehicle Speed
	Driving support ECU assembly	-	Airbag ECU assembly	Radar Cruise 2	Vhcl Spd-Brake ECU
	Combination meter assembly*2	Position control ECU assembly LH Position control ECU assembly RH Multiplex tilt and telescopic ECU Meter mirror sub-assembly	Airbag ECU assembly Main body ECU (multiplex network body ECU) Certification ECU (smart key ECU assembly) Clearance warning ECU assembly Yaw rate sensor	Combination Meter	Vehicle Speed Meter
				Driver Seat	Vehicle Speed
				Passenger Seat	Vehicle Speed
				Head Up Display	Vehicle Speed from Meter ECU
				Tilt&Telescopic	Vehicle Speed
Ambient temperature	Air conditioning amplifier assembly	Front steering control ECU Combination meter assembly Parking brake ECU assembly Battery ECU assembly Hybrid vehicle control ECU assembly ECM Rack and pinion power steering gear assembly Inverter with converter assembly	Main body ECU (multiplex network body ECU) Forward recognition camera Radio receiver assembly	Air Conditioner	Ambient Temp Sensor
				VGRS	Ambient Temperature
				Combination Meter	Ambient Temperature
				Electric Parking Brake	Ambient Temperature
				Hybrid Control	Ambient Temperature
				EPMS	Thermistor Temperature
				HV Battery	Ambient Temperature
				Engine	Ambient Temperature
				Motor Generator	Ambient Temperature
Steering angle signal	Steering sensor	Skid control ECU assembly Absorber control ECU Front steering control ECU No. 1 headlight ECU sub-assembly LH Rack and pinion power steering gear assembly Blind spot monitor sensor RH Driving support ECU assembly	Main body ECU (multiplex network body ECU) Combination meter assembly Airbag ECU assembly Hybrid vehicle control ECU assembly Pedestrian detection ECU assembly Television camera assembly Forward recognition camera Radio receiver assembly	ABS/VSC/TRC	Steering Angle Value
				Air suspension	Steering Angle
				VGRS	Steering Angle
				EPMS	Steering Angle Velocity
				HL AutoLeveling	Steering Sensor Signal
				Blind Spot Monitor Master	Steering Angle
				Radar Cruise 2	Steering Angle
Door courtesy	Main body ECU (multiplex network body ECU)	-	Front multiplex network door ECU LH Front multiplex network door ECU RH Combination meter assembly Hybrid vehicle control ECU assembly Parking brake ECU assembly Forward recognition camera Stereo component equalizer assembly Radio receiver assembly Yaw rate sensor Battery ECU assembly Position control ECU assembly LH	Main Body	FR Door Courtesy SW FL Door Courtesy SW
Luggage courtesy	Main body ECU (multiplex network body ECU)	-	Certification ECU (smart key ECU assembly) Combination meter assembly Spoiler control ECU assembly Skid control ECU assembly ECU Hybrid vehicle control ECU assembly Television camera assembly Stereo component equalizer assembly Radio receiver assembly Yaw rate sensor	Main Body	Luggage Courtesy SW

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

Enter the following menus: Powertrain / Engine / Data List

w/ Canister Pump Module: Click here

w/o Canister Pump Module: Click here
Enter the following menus: Powertrain / Motor Generator / Data List

Click here
Enter the following menus: Powertrain / HV Battery / Data List

Click here
Enter the following menus: Powertrain / Radar Cruise 2 / Data List

Click here
Enter the following menus: Powertrain / Hybrid Control / Data List

Click here
Enter the following menus: Chassis / EMPS / Data List

Click here
Enter the following menus: Chassis / ABS/VSC/TRC / Data List

Click here
Enter the following menus: Chassis / DRS / Data List

Click here
Enter the following menus: Chassis / VGRS / Data List

Click here
Enter the following menus: Chassis / Tire Pressure Monitor / Data List

Click here
Enter the following menus: Body Electrical / Head Up Display / Data List

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

Click here
Enter the following menus: Chassis / Air suspension / Data List

Click here
Enter the following menus: Chassis / Electric Parking Brake / Data List

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

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

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

Click here
Enter the following menus: Body Electrical / Driver Seat / Data List

Click here
Enter the following menus: Body Electrical / Passenger Seat / Data List

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

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

Click here
Enter the following menus: Body Electrical / HL AutoLeveling / Data List

Click here
Enter the following menus: Body Electrical / Active Rear Wing / Data List

Click here
Enter the following menus: Body Electrical / Tilt&Telescopic / Data List

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

Click here