Inspection Procedure

NOTE:

Turn the ignition switch off before measuring the resistances of the CAN main wire and the CAN branch wire.
After the ignition switch is turned off, check that the key reminder warning system and light reminder warning system are not in operation.
Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches or the doors. If the doors need to be opened in order to check the connectors, open the doors and leave them open.

HINT:

Operating the ignition switch, any switches or any doors triggers related ECU and sensor communication with the CAN, which causes the resistance variation.
Even after DTCs are cleared, if a DTC is stored again after driving the vehicle for a while, the malfunction may be occurring due to vibration of the vehicle. In such a case, wiggling the ECUs or wire harness while performing the inspection below will help determine the cause of the malfunction.

CHECK FOR SHORT TO GND IN CAN BUS WIRE (DLC3 BRANCH WIRE)

Turn the ignition switch off.
Disconnect the CAN No. 1 junction connector.

Fig 1: Identifying E65 CAN No. 1 Junction Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value (s) in the table below.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E15-6 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E15-14 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 2: Identifying Terminal CANH, CANL And CG Of DLC3 Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DLC3

OK: Go to Next Step

CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 2 JUNCTION CONNECTOR)

Turn the ignition switch off.
Reconnect the CAN No. 1 junction connector.
Disconnect the CAN No. 2 junction connector.

Fig 3: Identifying CAN No. 2 Junction Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value (s) in the table below.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E15-6 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E15-14 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 4: Identifying DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 6

OK: Go to Next Step

CHECK FOR SHORT TO GND IN CAN BUS WIRE (ECM MAIN WIRE)

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 2 junction connector is disconnected.

Standard Resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
A34-10 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
A34-21 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 5: Identifying CAN No.2 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 5

OK: Go to Next Step

CHECK FOR SHORT TO GND IN CAN BUS WIRE (SKID CONTROL ECU BRANCH WIRE)

Disconnect the skid control ECU connector.

Fig 6: Identifying Skid Control ECU Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 2 junction connector is disconnected.

Standard Resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
A34-8 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
A34-19 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Result

RESULT CHART

Result	Proceed to
OK (w/o VSC)	A
OK (w/ VSC)	B
NG	C

Fig 7: Identifying CAN No.2 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

B: REPLACE BRAKE ACTUATOR ASSEMBLY (See REMOVAL )

C: REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 2 JUNCTION CONNECTOR - SKID CONTROL ECU)

A: REPLACE BRAKE ACTUATOR ASSEMBLY (See REMOVAL )

CHECK FOR SHORT TO GND IN CAN BUS WIRE (ECM MAIN WIRE)

Disconnect the ECM connector.

Fig 8: Identifying Terminal CANH And CANL Of ECM Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 2 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
A34-10 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
A34-21 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Result

RESULT CHART

Result	Proceed to
OK (for 22R-FE)	A
OK (for 2AZ-FE)	B
NG	C

Fig 9: Identifying CAN No.2 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

B: REPLACE ECM (See REMOVAL )

C: REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (CAN NO. 2 JUNCTION CONNECTOR - ECM)

A: REPLACE ECM (See REMOVAL )

CHECK FOR SHORT TO GND IN CAN BUS WIRE (POWER STEERING ECU BRANCH WIRE)

Reconnect the CAN No. 2 junction connector.
Disconnect the CAN No. 1 junction connector.

Measure the resistance according to the value (s) in the table below.

Standard Resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-3 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-14 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 10: Identifying CAN No.1 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 15

OK: Go to Next Step

CHECK FOR SHORT TO GND IN CAN BUS WIRE (STEERING ANGLE SENSOR BRANCH WIRE)

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard Resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-8 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-19 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 11: Identifying CAN No.1 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 16

OK: Go to Next Step

CHECK FOR SHORT TO GND IN CAN BUS WIRE (YAW RATE SENSOR BRANCH WIRE)

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard Resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-9 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-20 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 12: Identifying CAN No.1 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 17

OK: Go to Next Step

CHECK FOR SHORT TO GND IN CAN BUS WIRE (MAIN BODY ECU BRANCH WIRE)

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-1 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-12 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 13: Identifying CAN No.1 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 18

OK: Go to Next Step

CHECK FOR SHORT TO GND IN CAN BUS WIRE (AIR CONDITIONING AMPLIFIER BRANCH WIRE)

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-7 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-18 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 14: Identifying CAN No.1 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 19

OK: Go to Next Step

CHECK FOR SHORT TO GND IN CAN BUS WIRE (CENTER AIRBAG SENSOR ASSEMBLY BRANCH WIRE)

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-5 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-16 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 15: Identifying CAN No.1 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 20

OK: Go to Next Step

CHECK FOR SHORT TO GND IN CAN BUS WIRE (COMBINATION METER MAIN WIRE)

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-4 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-15 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 16: Identifying CAN No.1 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 21

OK: Go to Next Step

CHECK FOR SHORT TO GND IN CAN BUS WIRE (NETWORK GATEWAY ECU BRANCH WIRE)

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-10 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-21 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 17: Identifying CAN No.1 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 23

OK: Go to Next Step

CHECK FOR SHORT TO GND IN CAN BUS WIRE (ACCESSORY GATEWAY BRANCH WIRE)

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-11 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-22 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Result

RESULT CHART

Result	Proceed to
OK	A
NG (w/o remote engine starter)	B
NG (w/ remote engine starter)	C

Fig 18: Identifying CAN No.1 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

B: REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - ACCESSORY GATEWAY)

C: Go to step 22

A: REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR CAN NO. 2 JUNCTION CONNECTOR)

CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR POWER STEERING ECU)

Disconnect the power steering ECU connector.

Fig 19: Identifying Power Steering ECU (E51) Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-3 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-14 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 20: Identifying CAN No.1 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - POWER STEERING ECU)

OK: REPLACE POWER STEERING ECU (See POWER STEERING ECU )

CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR STEERING ANGLE SENSOR)

Disconnect the steering angle sensor connector.

Fig 21: Identifying Steering Angle Sensor Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-8 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-19 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 22: Identifying CAN No.1 Junction And DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - STEERING ANGLE SENSOR)

OK: REPLACE STEERING ANGLE SENSOR (See REMOVAL )

CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR YAW RATE SENSOR)

Disconnect the yaw rate sensor connector.

Fig 23: Identifying Terminal CANL And CANH Of Yaw Rate Sensor Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-9 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-20 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 24: Identifying CAN No.1 Junction And DLC3 Connector Terminals

NG: REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - YAW RATE SENSOR)

OK: REPLACE YAW RATE SENSOR (See YAW RATE AND ACCELERATION SENSOR (W/ VSC) )

CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR MAIN BODY ECU)

Disconnect the main body ECU connector.

Fig 25: Identifying Terminal CANL And CANH Of Main Body ECU Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-1 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-12 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 26: Identifying CAN No.1 Junction And DLC3 Connector Terminals

NG: REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - MAIN BODY ECU)

OK: REPLACE MAIN BODY ECU

CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR AIR CONDITIONING AMPLIFIER)

Disconnect the air conditioning amplifier connector.

Fig 27: Identifying Terminal CANH And CANL Of Air Conditioning Amplifier (E8) Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-7 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-18 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 28: Identifying CAN No.1 Junction And DLC3 Connector Terminals

NG: REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER)

OK: REPLACE AIR CONDITIONING AMPLIFIER (See AIR CONDITIONING AMPLIFIER )

CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR CENTER AIRBAG SENSOR ASSEMBLY)

Disconnect the center airbag sensor assembly connector.

Fig 29: Identifying Center Airbag Sensor Assembly Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-5 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-16 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 30: Identifying CAN No.1 Junction And DLC3 Connector Terminals

NG: REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR ASSEMBLY)

OK: REPLACE CENTER AIRBAG SENSOR ASSEMBLY (See REMOVAL )

CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR COMBINATION METER)

Disconnect the combination meter connector.

Fig 31: Identifying Combination Meter ECU Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-4 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-15 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 32: Identifying CAN No.1 Junction And DLC3 Connector Terminals

NG: REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - COMBINATION METER)

OK: REPLACE COMBINATION METER (See COMBINATION METER )

CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR ACCESSORY GATEWAY)

Disconnect the accessory gateway connector from the accessory.

Fig 33: Identifying Terminal CAN+ And CAN- Of Accessory Gateway Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-11 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-22 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 34: Identifying CAN No.1 Junction And DLC3 Connector Terminals

NG: REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - ACCESSORY GATEWAY)

OK: REPLACE THE ACCESSORY

CHECK FOR SHORT TO GND IN CAN BUS WIRE (NETWORK GATEWAY ECU BRANCH WIRE)

Disconnect the network gateway ECU connector.

Fig 35: Identifying Network Gateway ECU (E53) Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance according to the value (s) in the table below.

HINT:

The resistance must be measured after the CAN No. 1 junction connector is disconnected.

Standard resistance

RESISTANCE SPECIFIED CONDITIONS

Tester Connection	Switch Condition	Specified Condition
E65-10 (CANH) - E15-4 (CG)	Ignition switch off	200 Ω or higher
E65-21 (CANL) - E15-4 (CG)	Ignition switch off	200 Ω or higher

Fig 36: Identifying CAN No.1 Junction And DLC3 Connector Terminals

NG: REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - NETWORK GATEWAY ECU)

OK: REPLACE NETWORK GATEWAY ECU (See REMOVAL )