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Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Turn the ignition switch OFF before measuring the resistances of the main wire and the 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 for at least 1 minute and do not operate the ignition switch, any switches or doors. If doors need to be opened in order to check 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 resistance variation.

  1. CHECK DLC3 
    1. Measure the resistance of the DLC3.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART (RESISTANCE)

      Tester Connection Condition Specified Condition Proceed to
      E13-6 (CANH) - E13-14 (CANL) Ignition switch OFF 108 to 132 Ω A
      E13-6 (CANH) - E13-14 (CANL) Ignition switch OFF 132 Ω or more B
      Fig 1: Identifying DLC3 (E13) Connector Terminals
      G04492705Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: When the measured value is 132 Ω or more and a CAN communication system diagnostic trouble code is output, there may be a fault besides disconnection of the DLC3 branch wire. For that reason, troubleshooting should be performed again (see HOW TO PROCEED WITH TROUBLESHOOTING ) after repairing the trouble area.

    B: REPAIR OR REPLACE CAN BRANCH WIRE CONNECTED TO DLC3 (CANH, CANL) 

    A: Go TO NEXT STEP. 

  2. CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 2 JUNCTION CONNECTOR - ECM) 
    1. Disconnect the E68 No. 2 junction connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART (RESISTANCE)

      Tester Connection Condition Specified Condition
      E68-3 (CANH) - E68-14 (CANL) Ignition switch OFF 108 to 132 Ω
      Fig 2: Identifying E68 No. 2 Junction Connector
      G04492706Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: Go to step   4 

    OK: Go TO NEXT STEP. 

  3. CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 2 JUNCTION CONNECTOR - COMBINATION METER ECU) 
    1. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART (RESISTANCE)

      Tester Connection Condition Specified Condition
      E68-1 (CANH) - E68-12 (CANL) Ignition switch OFF 108 to 132 Ω
      Fig 3: Identifying E68 No. 2 Junction Connector
      G04492707Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: Go to step   9 

    OK: REPLACE NO. 2 JUNCTION CONNECTOR 

  4. CONNECT CONNECTOR 
    1. Reconnect the E68 No. 2 junction connector.
  5. CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 1 JUNCTION CONNECTOR - ECM) 
    1. Disconnect the A36 No. 1 junction connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART (RESISTANCE)

      Tester Connection Condition Specified Condition
      A36-2 (CANH) - A36-13 (CANL) Ignition switch OFF 108 to 132 Ω
      Fig 4: Identifying A36 No. 2 Junction Connector
      G04492708Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: Go to step   7 

    OK: Go TO NEXT STEP. 

  6. CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 1 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR) 
    1. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART (RESISTANCE)

      Tester Connection Condition Specified Condition
      A36-3 (CANH) - A36-14 (CANL) Ignition switch OFF 108 to 132 Ω
      Fig 5: Identifying A36 No. 2 Junction Connector
      G04492709Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

    OK: REPLACE NO. 1 JUNCTION CONNECTOR 

  7. CONNECT CONNECTOR 
    1. Reconnect the A36 No. 1 junction connector.
  8. CHECK CAN MAIN WIRE FOR DISCONNECTION (ECM - NO. 1 JUNCTION CONNECTOR) 
    1. Disconnect the A9 ECM connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART (RESISTANCE)

      Tester Connection Condition Specified Condition
      A9-41 (CANH) - A9-49 (CANL) Ignition switch OFF 108 to 132 Ω
      Fig 6: Identifying A9 ECM Connector
      G04492710Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO ECM (ECM - NO. 1 JUNCTION CONNECTOR) 

    OK: REPLACE ECM 

  9. CONNECT CONNECTOR 
    1. Reconnect the E68 No. 2 junction connector.
  10. CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 4 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR) 
    1. Disconnect the E69 No. 4 junction connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART (RESISTANCE)

      Tester Connection Condition Specified Condition
      E69-4 (CANH) - E69-15 (CANL) Ignition switch OFF 108 to 132 Ω
      Fig 7: Identifying E69 No. 4 Junction Connector
      G04492711Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: Go to step   14 

    OK: Go TO NEXT STEP. 

  11. CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 4 JUNCTION CONNECTOR - COMBINATION METER) 
    1. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART (RESISTANCE)

      Tester Connection Condition Specified Condition
      E69-5 (CANH) - E69-16 (CANL) Ignition switch OFF 108 to 132 Ω
      Fig 8: Identifying E69 No. 4 Junction Connector
      G04492712Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: Go to step 12 

    OK: REPLACE NO. 4 JUNCTION CONNECTOR 

  12. CONNECT CONNECTOR 
    1. Reconnect the E69 No. 4 junction connector.
  13. CHECK CAN MAIN BUS LINE FOR DISCONNECTION (COMBINATION METER ECU - NO. 4 JUNCTION CONNECTOR) 
    1. Disconnect the E19 combination meter ECU connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART (RESISTANCE)

      Tester Connection Condition Specified Condition
      E19-32 (CANH) - E19-31 (CANL) Ignition switch OFF 108 to 132 Ω
      Fig 9: Identifying E19 Combination Meter ECU Connector
      G04492713Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE CAN MAIN WIRE CONNECTED TO COMBINATION METER ECU (COMBINATION METER ECU - NO. 4 JUNCTION CONNECTOR) 

    OK: REPLACE COMBINATION METER ASSEMBLY (COMBINATION METER ECU) 

  14. CONNECT CONNECTOR 
    1. Reconnect the E69 No. 4 junction connector.
  15. CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 2 JUNCTION CONNECTOR - NO. 3 JUNCTION CONNECTOR) 
    1. Disconnect the E70 No. 3 junction connector.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART (RESISTANCE)

      Tester Connection Condition Specified Condition
      E70-3 (CANH) - E70-14 (CANL) Ignition switch OFF 108 to 132 Ω
      Fig 10: Identifying E70 No. 3 Junction Connector
      G04492714Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE CAN MAIN WIRE AND CONNECTOR (NO. 3 JUNCTION CONNECTOR - NO. 2 JUNCTION CONNECTOR) 

    OK: Go TO NEXT STEP. 

  16. CHECK CAN MAIN WIRE FOR DISCONNECTION (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR) 
    1. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART (RESISTANCE)

      Tester Connection Condition Specified Condition
      E70-2 (CANH) - E70-13 (CANL) Ignition switch OFF 108 to 132 Ω
      Fig 11: Identifying E70 No. 3 Junction Connector
      G04492715Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE CAN MAIN WIRE AND CONNECTOR (NO. 3 JUNCTION CONNECTOR - NO. 4 JUNCTION CONNECTOR) 

    OK: REPLACE NO. 3 JUNCTION CONNECTOR 

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