Toyota Tacoma (2015-2018) Service Manual: Dtc Combination Table

Toyota Tacoma (2015-2018) Service Manual / Can Communication / Can Communication System / Dtc Combination Table

DTC COMBINATION TABLE

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

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

HINT:

Communication DTCs (DTCs that start with U) indicate a communication error between the ECU that stores the DTC and the ECU that is indicated by the DTC.

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

Items to be Checked

NOTICE:

This DTC table is from another model, and is only used here to show an example of DTCs that are output when there is an open in a CAN branch line for the main body ECU. This table does not show DTCs applicable to this vehicle.
Even though a DTC title may indicate a communication error with a specific ECU, the ECU name used in the DTC name on the Techstream may differ depending on the ECU that stores the DTC. (Regarding output DTCs, refer to DTC Table by ECU.)
Click here

HINT:

As multiple ECUs indicate a communication stop with the main body ECU, the possibility of a communication stop of the main body ECU is high.

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

Items to be Checked

NOTICE:

This DTC table is from another model, and is only used here to show an example of DTCs that are output when there is an open in a CAN branch line for the main body ECU. This table does not show DTCs applicable to this vehicle.
Even though a DTC title may indicate a communication error with a specific ECU, the ECU name used in the DTC name on the Techstream may differ depending on the ECU that stores the DTC.
Click here

HINT:

If almost all of the DTCs of the main body ECU are stored, the possibility of a communication stop of the main body ECU is high.
When a CAN communication error occurs, many DTCs are output. DTCs other than communication error DTCs (such as DTCs that start with C or B) and communication DTCs for the ABS system are important DTCs, however it may be easier to determine the malfunctioning part by examining the overall situation without considering these DTCs.

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

*a	Items to be Checked	*b	ECM
*c	Gateway function equipped ECU	*d	Location of malfunction
*e	Central bus	*f	Sub bus

NOTICE:

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

HINT:

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

(c) When any of the following malfunctions occurs, many DTCs are likely to be output from many ECUs. Because of this, it may be difficult to determine the probable malfunctioning part.

Short between CAN lines (CANH and CANL)
Short between a CAN line (CANH or CANL) and ground
Short between a CAN line (CANH or CANL) and +B
Open in a CAN branch line (CANH or CANL) of an ECU or sensor
Open in a CAN main bus line (CANH or CANL) between 2 ECUs that have a terminating resistor

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

(a) If DTCs indicating a past communication error of an ECU or sensor connected to Bus 2 are output (but the bus is normal when performing the CAN bus check), the probable area that had a malfunction can be determined based on the following DTC combination table.

HINT:

Based on the table below and DTCs output from ECUs connected via CAN communication, the probable part for which communication stop occurred can be determined.
If there is an open in a CAN branch line or a communication stop in currently occurring, the malfunctioning area can easily be determined by performing a CAN bus check using the Techstream to determine which ECU or sensor that is connected to the open branch line is not responding (the ECU or sensor has a background color of red).
○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
If an open occurs in just one of the wires of a CAN branch line, DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.
If an open occurs in just one of the wires of a CAN branch line, even if the values in the following tables are "-", DTCs which are not related to malfunctioning parts may be output, or a message indicating a communication error may be displayed.

-			Trouble Mode
-			Open in CAN branch line(s)
Output ECU		Output DTC	Center Airbag Sensor Communication Stop Mode	Air Conditioning Amplifier Communication Stop Mode	Central Gateway ECU Communication Stop Mode	4WD Control ECU Communication Stop Mode
Bus 2	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	○	-	-
		U0142	-	○	-	-
		U0155	-	○	-	-
	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-	-
	ECM	U010087 U0100	-	-	-	-
		U012287 U0122	-	-	-	-
		U010487 U0104	-	-	○	-
	4 Wheel Drive Control ECU	U0100	-	-	-	○
	4 Wheel Drive Control ECU	U0122	-	-	-	○
	Brake Booster Assembly (Skid Control ECU) or Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-	-
		U0114	-	-	-	○
		U0123	○	-	-	-
		U0124	○	-	-	-
		U0126	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-	-
		U0101	-	-	-	-
		U0120	-	-	-	-
		U0151	○	-	-	-
		U0155	-	-	-	-
		U023A	-	-	○	-
		U0327	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry Function)	U0100	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Switching Function)	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start Function)	U0100	-	-	-	-
	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0142	-	-	-	-
		U0151	○	-	-	-
		U0163	-	-	○	-
		U023A	-	-	○	-
		U1104	-	-	○	-
	Spiral Cable with Sensor Sub-assembly	-	-	-	-	-
	Door Control and Tire Pressure Monitoring System Receiver Assembly	U0129	-	-	-	-
Bus 5	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-	-
	Clearance Warning ECU Assembly	U0100	-	-	○	-
		U0101	-	-	○	-
		U0142	-	-	○	-
		U0155	-	-	○	-
	Forward Recognition Camera	U0100	-	-	○	-
		U0101	-	-	○	-
		U0123	○	-	○	-
		U0126	-	-	○	-
		U0129	-	-	○	-
		U0142	-	-	○	-
		U0155	-	-	○	-
		U0235	-	-	-	-
	Millimeter Wave Radar Sensor Assembly	U0100	-	-	○	-
		U0125	○	-	○	-
		U0126	-	-	○	-
		U0129	-	-	○	-
		U023A	-	-	-	-
	Blind Spot Monitor Sensor LH	U0100	-	-	○	-
		U0126	-	-	○	-
		U0129	-	-	○	-
		U0142	-	-	○	-
Bus 3	Navigation Receiver Assembly or Radio and Display Receiver Assembly*1	U0100	-	-	○	-
		U0129	-	-	○	-
		U0140	-	-	○	-
		U0155	-	-	○	-
		U1110	-	-	○	-

-			Trouble Mode
-			Open in CAN branch line(s)
Output ECU		Output DTC	Skid Control ECU Communication Stop Mode	Main Body ECU Communication Stop Mode Mode	Certification ECU Communication Stop Mode	Steering Angle Sensor Communication Stop Mode
Bus 2	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0142	-	○	-	-
		U0155	-	-	-	-
	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-	-
	ECM	U010087 U0100	○	-	-	-
		U012287 U0122	○	-	-	-
		U010487 U0104	-	-	-	-
	4 Wheel Drive Control ECU	U0100	-	-	-	-
	4 Wheel Drive Control ECU	U0122	○	-	-	-
	Brake Booster Assembly (Skid Control ECU) or Brake Actuator Assembly (Skid Control ECU)*1	U0100	○	-	-	-
		U0114	○	-	-	-
		U0123	○	-	-	-
		U0124	○	-	-	-
		U0126	○	-	-	○
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	○	-	-
		U0101	-	○	-	-
		U0120	-	○	○	-
		U0151	-	○	-	-
		U0155	-	○	-	-
		U023A	-	○	-	-
		U0327	-	○	○	-
	Certification ECU (Smart Key ECU Assembly) (Entry Function)	U0100	-	-	○	-
		U0142	-	○	○	-
		U0155	-	-	○	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Switching Function)	U0100	-	-	○	-
		U0140	-	○	○	-
		U0155	-	-	○	-
	Certification ECU (Smart Key ECU Assembly) (Start Function)	U0100	-	-	○	-
	Combination Meter Assembly	U0100	-	-	-	-
		U0129	○	-	-	-
		U0142	-	○	-	-
		U0151	-	-	-	-
		U0163	-	-	-	-
		U023A	-	-	-	-
		U1104	-	-	-	-
	Spiral Cable with Sensor Sub-assembly	-	-	-	-	-
	Door Control and Tire Pressure Monitoring System Receiver Assembly	U0129	○	-	-	-
Bus 5	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-	-
	Clearance Warning ECU Assembly	U0100	-	-	-	-
		U0101	-	-	-	-
		U0142	-	○	-	-
		U0155	-	-	-	-
	Forward Recognition Camera	U0100	-	-	-	-
		U0101	-	-	-	-
		U0123	-	-	-	-
		U0126	-	-	-	○
		U0129	○	-	-	-
		U0142	-	○	-	-
		U0155	-	-	-	-
		U0235	-	-	-	-
	Millimeter Wave Radar Sensor Assembly	U0100	-	-	-	-
		U0125	-	-	-	-
		U0126	-	-	-	○
		U0129	○	-	-	-
		U023A	-	-	-	-
	Blind Spot Monitor Sensor LH	U0100	-	-	-	-
		U0126	-	-	-	○
		U0129	○	-	-	-
		U0142	-	○	-	-
Bus 3	Navigation Receiver Assembly or Radio and Display Receiver Assembly*1	U0100	-	-	-	-
		U0129	○	-	-	-
		U0140	-	○	-	-
		U0155	-	-	-	-
		U1110	-	-	-	-

-			Trouble Mode
-			Open in CAN branch line(s)
Output ECU		Output DTC	Tire Pressure Monitor ECU Communication Stop Mode
Bus 2	Airbag Sensor Assembly	-	-
	Air Conditioning Amplifier Assembly	U0100	-
		U0142	-
		U0155	-
	Central Gateway ECU (Network Gateway ECU)*2	-	-
	ECM	U010087 U0100	-
		U012287 U0122	-
		U010487 U0104	-
	4 Wheel Drive Control ECU	U0100	-
	4 Wheel Drive Control ECU	U0122	-
	Brake Booster Assembly (Skid Control ECU) or Brake Actuator Assembly (Skid Control ECU)*1	U0100	-
		U0114	-
		U0123	-
		U0124	-
		U0126	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-
		U0101	-
		U0120	-
		U0151	-
		U0155	-
		U023A	-
		U0327	-
	Certification ECU (Smart Key ECU Assembly) (Entry Function)	U0100	-
		U0142	-
		U0155	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Switching Function)	U0100	-
		U0140	-
		U0155	-
	Certification ECU (Smart Key ECU Assembly) (Start Function)	U0100	-
	Combination Meter Assembly	U0100	-
		U0129	-
		U0142	-
		U0151	-
		U0163	-
		U023A	-
		U1104	-
	Spiral Cable with Sensor Sub-assembly	-	-
	Door Control and Tire Pressure Monitoring System Receiver Assembly	U0129	○
Bus 5	Central Gateway ECU (Network Gateway ECU)*2	-	-
	Clearance Warning ECU Assembly	U0100	-
		U0101	-
		U0142	-
		U0155	-
	Forward Recognition Camera	U0100	-
		U0101	-
		U0123	-
		U0126	-
		U0129	-
		U0142	-
		U0155	-
		U0235	-
	Millimeter Wave Radar Sensor Assembly	U0100	-
		U0125	-
		U0126	-
		U0129	-
		U023A	-
	Blind Spot Monitor Sensor LH	U0100	-
		U0126	-
		U0129	-
		U0142	-
Bus 3	Navigation Receiver Assembly or Radio and Display Receiver Assembly*1	U0100	-
		U0129	-
		U0140	-
		U0155	-
		U1110	-

-			Trouble Mode
-			Open in CAN main line(s)
Output ECU		Output DTC	ECM Communication Stop Mode	No. 1 CAN Junction Connector to No. 2 CAN Junction Connector	Combination Meter ECU Communication Stop Mode
Bus 2	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	○	-	-
		U0142	-	○	-
		U0155	-	○	○
	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-
	ECM	U010087 U0100	○	-	-
		U012287 U0122	○	-	-
		U010487 U0104	○	-	-
	4 Wheel Drive Control ECU	U0100	○	-	-
	4 Wheel Drive Control ECU	U0122	-	-	-
	Brake Booster Assembly (Skid Control ECU) or Brake Actuator Assembly (Skid Control ECU)*1	U0100	○	-	-
		U0114	-	-	-
		U0123	-	-	-
		U0124	-	-	-
		U0126	-	○	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	○	○	-
		U0101	○	○	-
		U0120	-	-	-
		U0151	-	○	-
		U0155	-	-	○
		U023A	-	○	-
		U0327	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry Function)	U0100	○	○	-
		U0142	-	-	-
		U0155	-	-	○
	Certification ECU (Smart Key ECU Assembly) (Power Source Switching Function)	U0100	○	○	-
		U0140	-	-	-
		U0155	-	-	○
	Certification ECU (Smart Key ECU Assembly) (Start Function)	U0100	○	○	-
	Combination Meter Assembly	U0100	○	○	○
		U0129	-	○	○
		U0142	-	-	○
		U0151	-	○	○
		U0163	-	○	○
		U023A	-	○	○
		U1104	-	○	○
	Spiral Cable with Sensor Sub-assembly	-	-	-	-
	Door Control and Tire Pressure Monitoring System Receiver Assembly	U0129	-	○	-
Bus 5	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-
	Clearance Warning ECU Assembly	U0100	○	-	-
		U0101	○	-	-
		U0142	-	○	-
		U0155	-	○	○
	Forward Recognition Camera	U0100	○	-	-
		U0101	○	-	-
		U0123	-	-	-
		U0126	-	○	-
		U0129	-	-	-
		U0142	-	○	-
		U0155	-	○	○
		U0235	-	-	-
	Millimeter Wave Radar Sensor Assembly	U0100	○	-	-
		U0125	-	-	-
		U0126	-	○	-
		U0129	-	-	-
		U023A	-	-	-
	Blind Spot Monitor Sensor LH	U0100	○	-	-
		U0126	-	○	-
		U0129	-	-	-
		U0142	-	○	-
Bus 3	Navigation Receiver Assembly or Radio and Display Receiver Assembly*1	U0100	○	-	-
		U0129	-	-	-
		U0140	-	○	-
		U0155	-	○	○
		U1110	-	-	-

-			Trouble Mode
-			CAN bus lines short circuit or short to GND
Output ECU		Output DTC	CANH to CANL	CANH Short to Ground	CANL Short to Ground
Bus 2	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-
	ECM	U010087 U0100	○	○	○
		U012287 U0122	○	○	○
		U010487 U0104	○	○	○
	4 Wheel Drive Control ECU	U0100	○	○	○
	4 Wheel Drive Control ECU	U0122	○	○	○
	Brake Booster Assembly (Skid Control ECU) or Brake Actuator Assembly (Skid Control ECU)*1	U0100	○	○	○
		U0114	○	○	○
		U0123	○	○	○
		U0124	○	○	○
		U0126	○	○	○
	Main Body ECU (Multiplex Network Body ECU)	U0100	○	○	○
		U0101	○	○	○
		U0120	○	○	○
		U0151	○	○	○
		U0155	○	○	○
		U023A	○	○	○
		U0327	○	○	○
	Certification ECU (Smart Key ECU Assembly) (Entry Function)	U0100	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Certification ECU (Smart Key ECU Assembly) (Power Source Switching Function)	U0100	○	○	○
		U0140	○	○	○
		U0155	○	○	○
	Certification ECU (Smart Key ECU Assembly) (Start Function)	U0100	○	○	○
	Combination Meter Assembly	U0100	○	○	○
		U0129	○	○	○
		U0142	○	○	○
		U0151	○	○	○
		U0163	○	○	○
		U023A	○	○	○
		U1104	○	○	○
	Spiral Cable with Sensor Sub-assembly	-	-	-	-
	Door Control and Tire Pressure Monitoring System Receiver Assembly	U0129	○	○	○
Bus 5	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-
	Clearance Warning ECU Assembly	U0100	○	○	○
		U0101	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Forward Recognition Camera	U0100	○	○	○
		U0101	○	○	○
		U0123	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0142	○	○	○
		U0155	○	○	○
		U0235	-	-	-
	Millimeter Wave Radar Sensor Assembly	U0100	○	○	○
		U0125	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U023A	-	-	-
	Blind Spot Monitor Sensor LH	U0100	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0142	○	○	○
Bus 3	Navigation Receiver Assembly or Radio and Display Receiver Assembly*1	U0100	○	○	○
		U0129	○	○	○
		U0140	○	○	○
		U0155	○	○	○
		U1110	-	-	-

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

(a) If DTCs indicating a past communication error of an ECU or sensor connected to Bus 3 are output (but the bus is normal when performing the CAN bus check), the probable area that had a malfunction can be determined based on the following DTC combination table.

HINT:

Based on the table below and DTCs output from ECUs connected via CAN communication, the probable part for which communication stop occurred can be determined.
If there is an open in a CAN branch line or a communication stop in currently occurring, the malfunctioning area can easily be determined by performing a CAN bus check using the Techstream to determine which ECU or sensor that is connected to the open branch line is not responding (the ECU or sensor has a background color of red).
○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
If an open occurs in just one of the wires of a CAN branch line, DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.
If an open occurs in just one of the wires of a CAN branch line, even if the values in the following tables are "-", DTCs which are not related to malfunctioning parts may be output, or a message indicating a communication error may be displayed.

-			Trouble Mode
-			Open in CAN branch line(s)
Output ECU		Output DTC	Navigation Receiver Assembly Communication Stop Mode	Radio Receiver Assembly Communication Stop Mode
Bus 2	Airbag Sensor Assembly	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-
		U0142	-	-
		U0155	-	-
	Central Gateway ECU (Network Gateway ECU)*2	-	-	-
	ECM	U010087 U0100	-	-
		U012287 U0122	-	-
		U010487 U0104	-	-
	4 Wheel Drive Control ECU	U0100	-	-
	4 Wheel Drive Control ECU	U0122	-	-
	Brake Booster Assembly (Skid Control ECU) or Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-
		U0114	-	-
		U0123	-	-
		U0124	-	-
		U0126	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-
		U0101	-	-
		U0120	-	-
		U0151	-	-
		U0155	-	-
		U023A	-	-
		U0327	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry Function)	U0100	-	-
		U0142	-	-
		U0155	-	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Switching Function)	U0100	-	-
		U0140	-	-
		U0155	-	-
	Certification ECU (Smart Key ECU Assembly) (Start Function)	U0100	-	-
	Combination Meter Assembly	U0100	-	-
		U0129	-	-
		U0142	-	-
		U0151	-	-
		U0163	○	○
		U023A	-	-
		U1104	-	-
	Spiral Cable with Sensor Sub-assembly	-	-	-
	Door Control and Tire Pressure Monitoring System Receiver Assembly	U0129	-	-
Bus 5	Central Gateway ECU (Network Gateway ECU)*2	-	-	-
	Clearance Warning ECU Assembly	U0100	-	-
		U0101	-	-
		U0142	-	-
		U0155	-	-
	Forward Recognition Camera	U0100	-	-
		U0101	-	-
		U0123	-	-
		U0126	-	-
		U0129	-	-
		U0142	-	-
		U0155	-	-
		U0235	-	-
	Millimeter Wave Radar Sensor Assembly	U0100	-	-
		U0125	-	-
		U0126	-	-
		U0129	-	-
		U023A	-	-
	Blind Spot Monitor Sensor LH	U0100	-	-
		U0126	-	-
		U0129	-	-
		U0142	-	-
Bus 3	Navigation Receiver Assembly or Radio and Display Receiver Assembly*1	U0100	○	○
		U0129	○	○
		U0140	○	○
		U0155	○	○
		U1110	○	○

-			Trouble Mode
-			Open in CAN main line(s)
Output ECU		Output DTC	Central Gateway ECU (Network Gateway ECU) (CA3H and CA3L Terminal)	Central Gateway ECU (Network Gateway ECU) (CAYH and CAYL Terminal)
Bus 2	Airbag Sensor Assembly	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-
		U0142	-	-
		U0155	-	-
	Central Gateway ECU (Network Gateway ECU)*2	-	-	-
	ECM	U010087 U0100	-	-
		U012287 U0122	-	-
		U010487 U0104	-	-
	4 Wheel Drive Control ECU	U0100	-	-
	4 Wheel Drive Control ECU	U0122	-	-
	Brake Booster Assembly (Skid Control ECU) or Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-
		U0114	-	-
		U0123	-	-
		U0124	-	-
		U0126	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-
		U0101	-	-
		U0120	-	-
		U0151	-	-
		U0155	-	-
		U023A	-	-
		U0327	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry Function)	U0100	-	-
		U0142	-	-
		U0155	-	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Switching Function)	U0100	-	-
		U0140	-	-
		U0155	-	-
	Certification ECU (Smart Key ECU Assembly) (Start Function)	U0100	-	-
	Combination Meter Assembly	U0100	-	-
		U0129	-	-
		U0142	-	-
		U0151	-	-
		U0163	○	-
		U023A	-	-
		U1104	-	-
	Spiral Cable with Sensor Sub-assembly	-	-	-
	Door Control and Tire Pressure Monitoring System Receiver Assembly	U0129	-	-
Bus 5	Central Gateway ECU (Network Gateway ECU)*2	-	-	-
	Clearance Warning ECU Assembly	U0100	-	-
		U0101	-	-
		U0142	-	-
		U0155	-	-
	Forward Recognition Camera	U0100	-	-
		U0101	-	-
		U0123	-	-
		U0126	-	-
		U0129	-	-
		U0142	-	-
		U0155	-	-
		U0235	-	-
	Millimeter Wave Radar Sensor Assembly	U0100	-	-
		U0125	-	-
		U0126	-	-
		U0129	-	-
		U023A	-	-
	Blind Spot Monitor Sensor LH	U0100	-	-
		U0126	-	-
		U0129	-	-
		U0142	-	-
Bus 3	Navigation Receiver Assembly or Radio and Display Receiver Assembly*1	U0100	○	-
		U0129	○	-
		U0140	○	-
		U0155	○	-
		U1110	○	-

-			Trouble Mode
-			CAN bus lines short circuit or short to GND
Output ECU		Output DTC	CANH to CANL	CANH Short to Ground	CANL Short to Ground
Bus 2	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-
	ECM	U010087 U0100	-	-	-
		U012287 U0122	-	-	-
		U010487 U0104	-	-	-
	4 Wheel Drive Control ECU	U0100	-	-	-
	4 Wheel Drive Control ECU	U0122	-	-	-
	Brake Booster Assembly (Skid Control ECU) or Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-
		U0114	-	-	-
		U0123	-	-	-
		U0124	-	-	-
		U0126	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	-	-	-
		U0327	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry Function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Switching Function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start Function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	○	○	○
		U023A	-	-	-
		U1104	-	-	-
	Spiral Cable with Sensor Sub-assembly	-	-	-	-
	Door Control and Tire Pressure Monitoring System Receiver Assembly	U0129	-	-	-
Bus 5	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-
	Clearance Warning ECU Assembly	U0100	-	-	-
		U0101	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Forward Recognition Camera	U0100	-	-	-
		U0101	-	-	-
		U0123	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0155	-	-	-
		U0235	-	-	-
	Millimeter Wave Radar Sensor Assembly	U0100	-	-	-
		U0125	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U023A	-	-	-
	Blind Spot Monitor Sensor LH	U0100	-	-	-
		U0126	-	-	-
		U0129	-	-	-
		U0142	-	-	-
Bus 3	Navigation Receiver Assembly or Radio and Display Receiver Assembly*1	U0100	○	○	○
		U0129	○	○	○
		U0140	○	○	○
		U0155	○	○	○
		U1110	○	○	○

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

(a) If DTCs indicating a past communication error of an ECU or sensor connected to Bus 5 are output (but the bus is normal when performing the CAN bus check), the probable area that had a malfunction can be determined based on the following DTC combination table.

HINT:

Based on the table below and DTCs output from ECUs connected via CAN communication, the probable part for which communication stop occurred can be determined.
If there is an open in a CAN branch line or a communication stop in currently occurring, the malfunctioning area can easily be determined by performing a CAN bus check using the Techstream to determine which ECU or sensor that is connected to the open branch line is not responding (the ECU or sensor has a background color of red).
○: DTC is output.
-: DTC is not output.
*1: DTC U0073 may be stored when communication is lost.
*2: Gateway function equipped ECUs relay signals between the ECUs connected to the different buses.
If an open occurs in just one of the wires of a CAN branch line, DTCs which are not related to malfunctioning parts may be output (DTCs may be displayed randomly), or a message indicating a communication error may be displayed.
If an open occurs in just one of the wires of a CAN branch line, even if the values in the following tables are "-", DTCs which are not related to malfunctioning parts may be output, or a message indicating a communication error may be displayed.

-			Trouble Mode
-			Open in CAN branch line(s)
Output ECU		Output DTC	Clearance Warning ECU Communication Stop Mode	Front Camera Module Communication Stop Mode	Millimeter Wave Radar Sensor Communication Stop Mode	Blind Spot Monitor Sensor Communication Stop Mode
Bus 2	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-	-
	ECM	U010087 U0100	-	-	-	-
		U012287 U0122	-	-	-	-
		U010487 U0104	-	-	○	-
	4 Wheel Drive Control ECU	U0100	-	-	-	-
	4 Wheel Drive Control ECU	U0122	-	-	-	-
	Brake Booster Assembly (Skid Control ECU) or Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-	-
		U0114	-	-	-	-
		U0123	-	-	-	-
		U0124	-	-	-	-
		U0126	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-	-
		U0101	-	-	-	-
		U0120	-	-	-	-
		U0151	-	-	-	-
		U0155	-	-	-	-
		U023A	-	○	-	-
		U0327	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry Function)	U0100	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Switching Function)	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start Function)	U0100	-	-	-	-
	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0142	-	-	-	-
		U0151	○	-	-	-
		U0163	-	-	○	-
		U023A	-	○	-	-
		U1104	-	-	○	-
	Spiral Cable with Sensor Sub-assembly	-	-	-	-	-
	Door Control and Tire Pressure Monitoring System Receiver Assembly	U0129	-	-	-	-
Bus 5	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-	-
	Clearance Warning ECU Assembly	U0100	○	-	-	-
		U0101	○	-	-	-
		U0142	○	-	-	-
		U0155	○	-	-	-
	Forward Recognition Camera	U0100	-	○	-	-
		U0101	-	○	-	-
		U0123	-	○	-	-
		U0126	-	○	-	-
		U0129	-	○	-	-
		U0142	-	○	-	-
		U0155	-	○	-	-
		U0235	-	○	○	-
	Millimeter Wave Radar Sensor Assembly	U0100	-	-	○	-
		U0125	-	-	○	-
		U0126	-	-	-	-
		U0129	-	-	○	-
		U023A	-	○	○	-
	Blind Spot Monitor Sensor LH	U0100	-	-	-	○
		U0126	-	-	-	○
		U0129	-	-	-	○
		U0142	-	-	-	○
Bus 3	Navigation Receiver Assembly or Radio and Display Receiver Assembly*1	U0100	-	-	-	-
		U0129	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
		U1110	○	-	-	-

-			Trouble Mode
-			Open in CAN main line(s)
Output ECU		Output DTC	Central Gateway ECU (Network Gateway ECU) (CA5H and CA5L Terminal)	No. 6 CAN Junction Connector to No. 5 CAN Junction Connector	No. 5 CAN Junction Connector to No. 4 CAN Junction Connector	Central Gateway ECU (Network Gateway ECU) (CAXH and CAXL Terminal)
Bus 2	Airbag Sensor Assembly	-	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-	-
	ECM	U010087 U0100	-	-	-	-
		U012287 U0122	-	-	-	-
		U010487 U0104	○	○	-	-
	4 Wheel Drive Control ECU	U0100	-	-	-	-
	4 Wheel Drive Control ECU	U0122	-	-	-	-
	Brake Booster Assembly (Skid Control ECU) or Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-	-
		U0114	-	-	-	-
		U0123	-	-	-	-
		U0124	-	-	-	-
		U0126	-	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-	-
		U0101	-	-	-	-
		U0120	-	-	-	-
		U0151	-	-	-	-
		U0155	-	-	-	-
		U023A	○	-	-	-
		U0327	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry Function)	U0100	-	-	-	-
		U0142	-	-	-	-
		U0155	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Switching Function)	U0100	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start Function)	U0100	-	-	-	-
	Combination Meter Assembly	U0100	-	-	-	-
		U0129	-	-	-	-
		U0142	-	-	-	-
		U0151	-	-	-	-
		U0163	-	-	-	-
		U023A	○	-	-	-
		U1104	○	○	-	-
	Spiral Cable with Sensor Sub-assembly	-	-	-	-	-
	Door Control and Tire Pressure Monitoring System Receiver Assembly	U0129	-	-	-	-
Bus 5	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-	-
	Clearance Warning ECU Assembly	U0100	○	-	-	-
		U0101	○	-	-	-
		U0142	○	-	-	-
		U0155	○	-	-	-
	Forward Recognition Camera	U0100	○	-	-	-
		U0101	○	-	-	-
		U0123	○	-	-	-
		U0126	○	-	-	-
		U0129	○	-	-	-
		U0142	○	-	-	-
		U0155	○	-	-	-
		U0235	-	○	-	-
	Millimeter Wave Radar Sensor Assembly	U0100	○	○	-	-
		U0125	○	○	-	-
		U0126	○	○	-	-
		U0129	○	○	-	-
		U023A	-	○	-	-
	Blind Spot Monitor Sensor LH	U0100	○	○	○	-
		U0126	○	○	○	-
		U0129	○	○	○	-
		U0142	○	○	○	-
Bus 3	Navigation Receiver Assembly or Radio and Display Receiver Assembly*1	U0100	-	-	-	-
		U0129	-	-	-	-
		U0140	-	-	-	-
		U0155	-	-	-	-
		U1110	○	-	-	-

-			Trouble Mode
-			CAN bus lines short circuit or short to GND
Output ECU		Output DTC	CANH to CANL	CANH Short to Ground	CANL Short to Ground
Bus 2	Airbag Sensor Assembly	-	-	-	-
	Air Conditioning Amplifier Assembly	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-
	ECM	U010087 U0100	-	-	-
		U012287 U0122	-	-	-
		U010487 U0104	○	○	○
	4 Wheel Drive Control ECU	U0100	-	-	-
	4 Wheel Drive Control ECU	U0122	-	-	-
	Brake Booster Assembly (Skid Control ECU) or Brake Actuator Assembly (Skid Control ECU)*1	U0100	-	-	-
		U0114	-	-	-
		U0123	-	-	-
		U0124	-	-	-
		U0126	-	-	-
	Main Body ECU (Multiplex Network Body ECU)	U0100	-	-	-
		U0101	-	-	-
		U0120	-	-	-
		U0151	-	-	-
		U0155	-	-	-
		U023A	○	○	○
		U0327	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Entry Function)	U0100	-	-	-
		U0142	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Power Source Switching Function)	U0100	-	-	-
		U0140	-	-	-
		U0155	-	-	-
	Certification ECU (Smart Key ECU Assembly) (Start Function)	U0100	-	-	-
	Combination Meter Assembly	U0100	-	-	-
		U0129	-	-	-
		U0142	-	-	-
		U0151	-	-	-
		U0163	-	-	-
		U023A	○	○	○
		U1104	○	○	○
	Spiral Cable with Sensor Sub-assembly	-	-	-	-
	Door Control and Tire Pressure Monitoring System Receiver Assembly	U0129	-	-	-
Bus 5	Central Gateway ECU (Network Gateway ECU)*2	-	-	-	-
	Clearance Warning ECU Assembly	U0100	○	○	○
		U0101	○	○	○
		U0142	○	○	○
		U0155	○	○	○
	Forward Recognition Camera	U0100	○	○	○
		U0101	○	○	○
		U0123	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0142	○	○	○
		U0155	○	○	○
		U0235	○	○	○
	Millimeter Wave Radar Sensor Assembly	U0100	○	○	○
		U0125	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U023A	○	○	○
	Blind Spot Monitor Sensor LH	U0100	○	○	○
		U0126	○	○	○
		U0129	○	○	○
		U0142	○	○	○
Bus 3	Navigation Receiver Assembly or Radio and Display Receiver Assembly*1	U0100	-	-	-
		U0129	-	-	-
		U0140	-	-	-
		U0155	-	-	-
		U1110	○	○	○

Utility

UTILITY INITIALIZE THE CONNECTION INFORMATION OF A GATEWAY FUNCTION EQUIPPED ECU (BUS MONITOR ECU) (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techst ...

Data List / Active Test

DATA LIST / ACTIVE TEST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether ...

Other materials:

Inspection
INSPECTION PROCEDURE 1. INSPECT TRANSMISSION WIRE (a) Measure the resistance according to the value(s) in the table below. Text in Illustration *a Component without harness connected (Transmission Wire) Standard Resistance: ...

Brake Warning Light Remains ON
DESCRIPTION The BRAKE warning light comes on when brake fluid is insufficient, the parking brake is applied or the EBD is defective. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: When replacing the skid control ECU (master cylinder solenoid), perform calibration (See page ...

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. CUSTOMER PROBLEM ANALYSIS CHECK HINT: In troubleshooti ...