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Check CAN Bus Lines for Short Circuit: Procedure

  1. CHECK FOR SHORT IN CAN BUS WIRES (DLC3 BRANCH WIRE) 
    1. Turn the ignition switch off.
      Fig 1: Identifying DLC3 Branch Wire E65 Connector
      GTY290704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to CAN No. 1 Junction Connector)
    2. Disconnect the CAN No. 1 junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 2: Checking DLC3 E15 Connector Terminals
      GTY292861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 DLC3

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      E15-6 (CANH) - E15-14 (CANL) Ignition switch off 1 MΩ or higher

    NG → REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DLC3 

    OK: Go to next step 

  2. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 JUNCTION CONNECTOR) 
    1. Reconnect the CAN No. 1 junction connector.
    2. Disconnect the CAN No. 2 junction connector.
    3. Measure the resistance according to the value(s) in the table below.
      Fig 3: Checking DLC3 E15 Connector Terminals
      GTY292861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 DLC3

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      E15-6 (CANH) - E15-14 (CANL) Ignition switch off 108 to 132 Ω

    NG → See step   8 

    OK: Go to next step 

  3. CHECK FOR SHORT IN CAN BUS WIRES (ECM MAIN WIRE) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 4: Checking ECM Main Wire A35 Connector Terminals
      GTY293269Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *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) - A35-4 (CANL) Ignition switch off 108 to 132 Ω

    NG → See step   6 

    OK: Go to next step 

  4. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 JUNCTION CONNECTOR - SKID CONTROL ECU) 
    1. Disconnect the skid control ECU connector.
      Fig 5: Checking Skid Control ECU A38 Connector Terminals
      GTY292044Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Skid Control ECU)
    2. Measure the resistance according to the value(s) in the table below.
      Fig 6: Checking ECM Main Wire A35 Connector Terminals
      GTY294210Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *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) - A35-3 (CANL) Ignition switch off 1 MΩ or higher

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

    OK: Go to next step 

  5. CHECK FOR SHORT IN CAN BUS WIRES (SKID CONTROL ECU) 
    1. Reconnect the CAN No. 2 junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 7: Checking DLC3 E15 Connector Terminals
      GTY292861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 DLC3

      HINT: 

      • The resistance must be measured after the CAN No. 1 and CAN No. 2 junction connectors are reconnected.
      • The resistance must be measured after the skid control ECU connector is disconnected.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      E15-6 (CANH) - E15-14 (CANL) Ignition switch off 54 to 69 Ω

      Result

      Result Proceed to
      OK A
      NG B

    B → REPLACE JUNCTION CONNECTOR (CAN No. 2) 

    A → See step   34 

  6. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 2 JUNCTION CONNECTOR - ECM) 
    1. Disconnect the ECM connector.
      Fig 8: Checking ECM Communication A37 Connector Terminals
      GTY290894Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to ECM)
      *b for 2AZ-FE
      *c for 2ZR-FE
    2. Measure the resistance according to the value(s) in the table below.
      Fig 9: Checking ECM Main Wire A35 Connector Terminals
      GTY293266Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *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) - A35-4 (CANL) Ignition switch off 1 MΩ or higher

      Result

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

    B → See step   35 

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

    A → See step   7 

  7. REPLACE ECM. Refer to  REMOVAL 
  8. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 JUNCTION CONNECTOR - CAN NO. 2 JUNCTION CONNECTOR) 
    1. Turn the ignition switch off.
      Fig 10: Checking CAN No. 1 Junction Connector - CAN No. 2 Junction Connector E65 Connector Terminals
      GTY293767Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to CAN No. 1 Junction Connector)
    2. Disconnect the CAN No. 1 junction connector.
    3. 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

      Tester Connection Switch Condition Specified Condition
      E65-6 (CANH) - E65-17 (CANL) Ignition switch off 1 MΩ or higher

    NG → REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - CAN NO. 2 JUNCTION CONNECTOR) 

    OK: Go to next step 

  9. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 JUNCTION CONNECTOR - COMBINATION METER) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 11: Checking CAN No. 1 Junction Connector - Combination Meter E65 Connector Terminals
      GTY291270Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *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) - E65-15 (CANL) Ignition switch off 108 to 132 Ω

    NG → See step   32 

    OK: Go to next step 

  10. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 JUNCTION CONNECTOR - 4WD CONTROL ECU) 
    1. Disconnect the 4WD control ECU connector.
      Fig 12: Checking CAN No. 1 Junction Connector - 4WD Control ECU E17 Connector Terminals
      GTY291449Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to 4WD Control ECU)
    2. Measure the resistance according to the value(s) in the table below.
      Fig 13: Checking CAN No. 1 Junction Connector E65 Connector Terminals
      GTY291271Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *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) - E65-21 (CANL) Ignition switch off 1 MΩ or higher

    NG → REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (CAN NO. 1 JUNCTION CONNECTOR - 4WD CONTROL ECU) 

    OK: Go to next step 

  11. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 JUNCTION CONNECTOR - STEERING ANGLE SENSOR) 
    1. Disconnect the steering angle sensor connector.
      Fig 14: Identifying CAN No. 1 Junction Connector - Steering Angle Sensor E62 Connector
      GTY290084Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Steering Angle Sensor)
    2. Measure the resistance according to the value(s) in the table below.
      Fig 15: Checking CAN No. 1 Junction Connector E65 Connector Terminals
      GTY291269Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *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) - E65-19 (CANL) Ignition switch off 1 MΩ or higher

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

    OK: Go to next step 

  12. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 JUNCTION CONNECTOR - POWER STEERING ECU) 
    1. Disconnect the power steering ECU connector.
      Fig 16: Checking Power Steering ECU E51 Connector Terminals
      GTY291161Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Power Steering ECU)
    2. Reconnect the CAN No. 2 junction connector.
      Fig 17: Checking CAN No. 1 Junction Connector E65 Connector Terminals
      GTY291266Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to CAN No. 1 Junction Connector)
    3. 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

      Tester Connection Switch Condition Specified Condition
      E65-3 (CANH) - E65-14 (CANL) Ignition switch off 1 MΩ or higher

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

    OK: Go to next step 

  13. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 JUNCTION CONNECTOR - CENTER AIRBAG SENSOR ASSEMBLY) 
    1. Disconnect the center airbag sensor assembly connector.
      Fig 18: Identifying CAN No. 1 Junction Connector - Center Airbag Sensor E18 Connector
      GTY290255Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Center Airbag Sensor Assembly)
    2. Measure the resistance according to the value(s) in the table below.
      Fig 19: Checking CAN No. 1 Junction Connector E65 Connector Terminals
      GTY291267Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *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) - E65-16 (CANL) Ignition switch off 1 MΩ or higher

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

    OK: Go to next step 

  14. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 JUNCTION CONNECTOR - AIR CONDITIONING AMPLIFIER) 
    1. Disconnect the air conditioning amplifier connector.
      Fig 20: Checking Air Conditioning Amplifier E8 & E73 Connector Terminals
      GTY290063Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *A for 2AZ-FE
      *B for 2ZR-FE
      *a Front view of wire harness connector
      (to Air Conditioning Amplifier)
    2. Measure the resistance according to the value(s) in the table below.
      Fig 21: Checking CAN No. 1 Junction Connector E65 Connector Terminals
      GTY291268Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *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) - E65-18 (CANL) Ignition switch off 1 MΩ or higher

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

    OK: Go to next step 

  15. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 JUNCTION CONNECTOR - MAIN BODY ECU) 
    1. Disconnect the main body ECU connector.
      Fig 22: Checking Main Body ECU E63 Connector Terminals
      GTY292480Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Main Body ECU)
    2. Measure the resistance according to the value(s) in the table below.
      Fig 23: Checking CAN No. 1 Junction Connector E65 Connector Terminals
      GTY293766Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *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) - E65-12 (CANL) Ignition switch off 1 MΩ or higher

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

    OK: Go to next step 

  16. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 JUNCTION CONNECTOR - YAW RATE SENSOR) 
    1. Disconnect the yaw rate sensor connector.
      Fig 24: Checking Yaw Rate Sensor E61 Connector Terminals
      GTY289905Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Yaw Rate Sensor)
    2. Measure the resistance according to the value(s) in the table below.
      Fig 25: Checking CAN No. 1 Junction Connector E65 Connector Terminals
      GTY291264Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *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) - E65-20 (CANL) Ignition switch off 1 MΩ or higher

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

    OK: Go to next step 

  17. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 JUNCTION CONNECTOR - ACCESSORY GATEWAY) 
    1. w/ remote engine starter:
      Fig 26: Checking CAN No. 1 Junction Connector - Accessory Gateway E43 Connector Terminals
      GTY293755Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Accessory Gateway)
      1. Disconnect the accessory gateway connector from the accessory.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 27: Checking CAN No. 1 Junction Connector E65 Connector Terminals
      GTY291265Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *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) - E65-22 (CANL) Ignition switch off 1 MΩ or higher

      Result

      Result Proceed to
      OK A
      NG B

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

    A: Go to next step 

  18. CHECK FOR SHORT IN CAN BUS WIRES (CAN NO. 1 JUNCTION CONNECTOR) 
    1. Reconnect the CAN No. 1 junction connector and CAN No. 2 junction connector.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 28: Checking DLC3 E15 Connector Terminals
      GTY292861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 DLC3

      HINT: 

      • The resistance must be measured after the main wire connected ECU (ECM and combination meter), CAN No. 1 and No. 2 junction connectors are reconnected.
      • The resistance must be measured after the all branch wire connected ECU and sensor connectors are disconnected.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      E15-6 (CANH) - E15-14 (CANL) Ignition switch off 54 to 69 Ω

    NG → REPLACE JUNCTION CONNECTOR (CAN No. 1) 

    OK: Go to next step 

  19. CHECK FOR SHORT IN CAN BUS WIRES (4WD CONTROL ECU) 
    1. Reconnect the 4WD control ECU connector.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 29: Checking DLC3 E15 Connector Terminals
      GTY292861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 DLC3

      HINT: 

      The resistance must be measured after the 4WD control ECU, main wire connected ECU (ECM and combination meter), CAN No. 1 and No. 2 junction connectors are reconnected.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      E15-6 (CANH) - E15-14 (CANL) Ignition switch off 54 to 69 Ω

    NG → See step   27 

    OK: Go to next step 

  20. CHECK FOR SHORT IN CAN BUS WIRES (STEERING ANGLE SENSOR) 
    1. Reconnect the steering angle sensor connector.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 30: Checking DLC3 E15 Connector Terminals
      GTY292861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 DLC3

      HINT: 

      The resistance must be measured after the steering angle sensor, main wire connected ECU (ECM and combination meter), CAN No. 1 and No. 2 junction connectors are reconnected.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      E15-6 (CANH) - E15-14 (CANL) Ignition switch off 54 to 69 Ω

    NG → See step   28 

    OK: Go to next step 

  21. CHECK FOR SHORT IN CAN BUS WIRES (POWER STEERING ECU) 
    1. Reconnect the power steering ECU connector.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 31: Checking DLC3 E15 Connector Terminals
      GTY292861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 DLC3

      HINT: 

      The resistance must be measured after the power steering ECU, main wire connected ECU (ECM and combination meter), CAN No. 1 and No. 2 junction connectors are reconnected.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      E15-6 (CANH) - E15-14 (CANL) Ignition switch off 54 to 69 Ω

    NG → See step   29 

    OK: Go to next step 

  22. CHECK FOR SHORT IN CAN BUS WIRES (CENTER AIRBAG SENSOR ASSEMBLY) 
    1. Reconnect the center airbag sensor assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 32: Checking DLC3 E15 Connector Terminals
      GTY292861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 DLC3

      HINT: 

      The resistance must be measured after the center airbag sensor assembly, main wire connected ECU (ECM and combination meter), CAN No. 1 and No. 2 junction connectors are reconnected.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      E15-6 (CANH) - E15-14 (CANL) Ignition switch off 54 to 69 Ω

    NG → See step   30 

    OK: Go to next step 

  23. CHECK FOR SHORT IN CAN BUS WIRES (AIR CONDITIONING AMPLIFIER) 
    1. Reconnect the air conditioning amplifier connector.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 33: Checking DLC3 E15 Connector Terminals
      GTY292861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 DLC3

      HINT: 

      The resistance must be measured after the air conditioning amplifier, main wire connected ECU (ECM and combination meter), CAN No. 1 and No. 2 junction connectors are reconnected.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      E15-6 (CANH) - E15-14 (CANL) Ignition switch off 54 to 69 Ω

    NG → See step   31 

    OK: Go to next step 

  24. CHECK FOR SHORT IN CAN BUS WIRES (ACCESSORY GATEWAY) 

    HINT: 

    For vehicles without the remote engine starter, go to the next step.

    1. Reconnect the accessory gateway connector.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 34: Checking DLC3 E15 Connector Terminals
      GTY292861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 DLC3

      HINT: 

      The resistance must be measured after the accessory, main wire connected ECU (ECM and combination meter), CAN No. 1 and No. 2 junction connectors are reconnected.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      E15-6 (CANH) - E15-14 (CANL) Ignition switch off 54 to 69 Ω

    NG → REPLACE THE ACCESSORY 

    OK: Go to next step 

  25. CHECK FOR SHORT IN CAN BUS WIRES (MAIN BODY ECU) 
    1. Reconnect the main body ECU connector.
    2. Measure the resistance according to the value(s) in the table below.
      Fig 35: Checking DLC3 E15 Connector Terminals
      GTY292861Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 DLC3

      HINT: 

      The resistance must be measured after the main body ECU, main wire connected ECU (ECM and combination meter), CAN No. 1 and No. 2 junction connectors are reconnected.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      E15-6 (CANH) - E15-14 (CANL) Ignition switch off 54 to 69 Ω

    NG → REPLACE MAIN BODY ECU 

    OK → See step   26 

  26. REPLACE YAW RATE SENSOR. Refer to  REMOVAL 
  27. REPLACE 4WD CONTROL ECU. Refer to  REMOVAL 
  28. REPLACE STEERING ANGLE SENSOR. Refer to  REMOVAL 
  29. REPLACE POWER STEERING ECU. Refer to  REMOVAL 
  30. REPLACE CENTER AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL 
  31. REPLACE AIR CONDITIONING AMPLIFIER. Refer to  REMOVAL 
  32. CHECK FOR SHORT IN CAN BUS WIRES (COMBINATION METER MAIN WIRE) 
    1. Disconnect the combination meter ECU connector.
      Fig 36: Identifying Combination Meter Main Wire E55 Connector
      GTY290825Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Rear view of wire harness connector
      (to Combination Meter)
    2. Measure the resistance according to the value(s) in the table below.
      Fig 37: Checking CAN No. 1 Junction Connector - Combination Meter E65 Connector Terminals
      GTY291270Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      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) - E65-15 (CANL) Ignition switch off 1 MΩ or higher
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to CAN No. 1 Junction Connector)

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

    OK → See step   33 

  33. REPLACE COMBINATION METER. Refer to  REMOVAL 
  34. REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL 
  35. REPLACE ECM. Refer to  REMOVAL 
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