Check CAN Bus Line for Short to GND: Procedure
- CHECK FOR SHORT TO GND IN CAN BUS WIRE (DLC3 BRANCH WIRE)
- Turn the ignition switch off.TEXT IN ILLUSTRATION
*a Rear view of wire harness connector
(to CAN No. 1 Junction Connector) - Disconnect the CAN No. 1 junction connector.
- Measure the resistance according to the value(s) in the table below.TEXT IN ILLUSTRATION
*1 DLC3 Standard Resistance
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
NG → REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DLC3
OK: Go to next step
- Turn the ignition switch off.
- 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.
- Measure the resistance according to the value(s) in the table below.TEXT IN ILLUSTRATION
*1 DLC3 Standard Resistance
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
NG → See step 7
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.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 2 Junction Connector)HINT:
The resistance must be measured after the CAN No. 2 junction connector is disconnected.
Standard Resistance
Tester Connection Switch Condition Specified Condition A35-2 (CANH) - E15-4 (CG) Ignition switch off 200 Ω or higher A35-4 (CANL) - E15-4 (CG) Ignition switch off 200 Ω or higher
NG → See step 5
OK: Go to next step
- Measure the resistance according to the value(s) in the table below.
- CHECK FOR SHORT TO GND IN CAN BUS WIRE (SKID CONTROL ECU BRANCH WIRE)
- Disconnect the skid control ECU connector.
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TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Skid Control ECU) - Measure the resistance according to the value(s) in the table below.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 2 Junction Connector)HINT:
The resistance must be measured after the CAN No. 2 junction connector is disconnected.
Standard Resistance
Tester Connection Switch Condition Specified Condition A35-1 (CANH) - E15-4 (CG) Ignition switch off 200 Ω or higher A35-3 (CANL) - E15-4 (CG) Ignition switch off 200 Ω or higher Result
Result Proceed to OK A NG B
B → REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 2 JUNCTION CONNECTOR - SKID CONTROL ECU)
A → See step 30
- Disconnect the skid control ECU connector.
- CHECK FOR SHORT TO GND IN CAN BUS WIRE (ECM MAIN WIRE)
- Disconnect the ECM connector.
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TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to ECM)*b for 2AZ-FE *c for 2ZR-FE - Measure the resistance according to the value(s) in the table below.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 2 Junction Connector)HINT:
The resistance must be measured after the CAN No. 2 junction connector is disconnected.
Standard Resistance
Tester Connection Switch Condition Specified Condition A35-2 (CANH) - E15-4 (CG) Ignition switch off 200 Ω or higher A35-4 (CANL) - E15-4 (CG) Ignition switch off 200 Ω or higher Result
Result Proceed to OK (for 2ZR-FE) A OK (for 2AZ-FE) B NG C
B → See step 31
C → REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (CAN NO. 2 JUNCTION CONNECTOR - ECM)
A → See step 6
- Disconnect the ECM connector.
- REPLACE ECM. Refer to REMOVAL
- CHECK FOR SHORT TO GND IN CAN BUS WIRE (POWER STEERING ECU BRANCH WIRE)
- Reconnect the CAN No. 2 junction connector.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector) - Disconnect the CAN No. 1 junction connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
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
NG → See step 16
OK: Go to next step
- Reconnect the CAN No. 2 junction connector.
- 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.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → See step 17
OK: Go to next step
- Measure the resistance according to the value(s) in the table below.
- 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.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → See step 18
OK: Go to next step
- Measure the resistance according to the value(s) in the table below.
- 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.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → See step 19
OK: Go to next step
- Measure the resistance according to the value(s) in the table below.
- 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.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → See step 20
OK: Go to next step
- Measure the resistance according to the value(s) in the table below.
- 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.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → See step 21
OK: Go to next step
- Measure the resistance according to the value(s) in the table below.
- 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.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → See step 22
OK: Go to next step
- Measure the resistance according to the value(s) in the table below.
- CHECK FOR SHORT TO GND IN CAN BUS WIRE (4WD CONTROL ECU BRANCH WIRE)
- Measure the resistance according to the value(s) in the table below.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → See step 32
OK: Go to next step
- Measure the resistance according to the value(s) in the table below.
- 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.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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 Proceed to OK A NG (w/o remote engine starter) B NG (w/ remote engine starter) C
B → REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - ACCESSORY GATEWAY)
C → See step 23
A → REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - CAN NO. 2 JUNCTION CONNECTOR)
- Measure the resistance according to the value(s) in the table below.
- CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - POWER STEERING ECU)
- Disconnect the power steering ECU connector.
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TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Power Steering ECU) - Measure the resistance according to the value(s) in the table below.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - POWER STEERING ECU)
OK → See step 24
- Disconnect the power steering ECU connector.
- CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - STEERING ANGLE SENSOR)
- Disconnect the steering angle sensor connector.
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TEXT IN ILLUSTRATION*a Rear view of wire harness connector
(to Steering Angle Sensor) - Measure the resistance according to the value(s) in the table below.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - STEERING ANGLE SENSOR)
OK → See step 25
- Disconnect the steering angle sensor connector.
- CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - YAW RATE SENSOR)
- Disconnect the yaw rate sensor connector.
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TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Yaw Rate Sensor) - Measure the resistance according to the value(s) in the table below.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - YAW RATE SENSOR)
OK → See step 26
- Disconnect the yaw rate sensor connector.
- CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - MAIN BODY ECU)
- Disconnect the main body ECU connector.
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TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to Main Body ECU) - Measure the resistance according to the value(s) in the table below.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - MAIN BODY ECU)
OK → REPLACE MAIN BODY ECU
- Disconnect the main body ECU connector.
- CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER)
- Disconnect the air conditioning amplifier connector.
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TEXT IN ILLUSTRATION*A for 2AZ-FE *B for 2ZR-FE *a Front view of wire harness connector
(to Air Conditioning Amplifier) - Measure the resistance according to the value(s) in the table below.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER)
OK → See step 27
- Disconnect the air conditioning amplifier connector.
- 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.
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TEXT IN ILLUSTRATION*a Rear view of wire harness connector
(to Center Airbag Sensor Assembly) - Measure the resistance according to the value(s) in the table below.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR ASSEMBLY)
OK → See step 28
- Disconnect the center airbag sensor assembly connector.
- CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - COMBINATION METER)
- Disconnect the combination meter connector.
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TEXT IN ILLUSTRATION*a Rear view of wire harness connector
(to Combination Meter) - Measure the resistance according to the value(s) in the table below.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → REPAIR OR REPLACE CAN BUS MAIN WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - COMBINATION METER)
OK → See step 29
- Disconnect the combination meter connector.
- CHECK FOR SHORT TO GND IN CAN BUS WIRE (CAN NO. 1 JUNCTION CONNECTOR - ACCESSORY GATEWAY)
- Disconnect the accessory gateway connector from the accessory.
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TEXT IN ILLUSTRATION*a Rear view of wire harness connector
(to Accessory Gateway) - Measure the resistance according to the value(s) in the table below.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - ACCESSORY GATEWAY)
OK → REPLACE THE ACCESSORY
- Disconnect the accessory gateway connector from the accessory.
- REPLACE POWER STEERING ECU. Refer to REMOVAL
- REPLACE STEERING ANGLE SENSOR. Refer to REMOVAL
- REPLACE YAW RATE SENSOR. Refer to REMOVAL
- REPLACE AIR CONDITIONING AMPLIFIER. Refer to REMOVAL
- REPLACE CENTER AIRBAG SENSOR ASSEMBLY. Refer to REMOVAL
- REPLACE COMBINATION METER. Refer to REMOVAL
- REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to REMOVAL
- REPLACE ECM. Refer to REMOVAL
- CHECK FOR SHORT TO GND IN CAN BUS WIRE (4WD CONTROL ECU BRANCH WIRE)
- Disconnect the 4WD control ECU connector.
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TEXT IN ILLUSTRATION*a Front view of wire harness connector
(to 4WD Control ECU) - Measure the resistance according to the value(s) in the table below.
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TEXT IN ILLUSTRATION*1 DLC3 *a Front view of wire harness connector
(to CAN No. 1 Junction Connector)HINT:
The resistance must be measured after the CAN No. 1 junction connector is disconnected.
Standard Resistance
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
NG → REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - 4WD CONTROL ECU)
OK → See step 33
- Disconnect the 4WD control ECU connector.
- REPLACE 4WD CONTROL ECU. Refer to REMOVAL