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Inspection Procedure

  1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (DOOR LOCK MOTOR) 
    1. Select the ACTIVE TEST, use the intelligent tester (with CAN VIM) to generate a control command, and then check that the door lock motor operates.

      Main body ECU 

      MAIN BODY ECU ACTIVE TEST

      Item Test Details Diagnostic Note
      DOOR LOCK Operate door lock motor for all doors LOCK / UNLOCK All doors are closed

      OK : Doors can lock/unlock. 

    OK : REPLACE DRIVER SIDE JUNCTION BLOCK 

    NG : GO TO NEXT STEP 

  2. INSPECT FRONT DOOR LOCK LH (DOOR LOCK AND UNLOCK SWITCH AND POSITION SWITCH) 
    1. Measure the resistance of the door lock and unlock switch and position switch.

      Standard resistance 

      Door lock and unlock switch 

      TESTER CONNECTION SWITCH CONDITION

      Tester Connection Switch Condition Specified Condition
      7 - 9 Lock Below 1 Ω
      7 - 10 Unlock
      7 - 9 OFF 10 kΩ or higher
      7 - 10

      Position switch 

      TESTER CONNECTION SWITCH CONDITION

      Tester Connection Switch Condition Specified Condition
      7 - 8 Lock Below 1 Ω
      Unlock 10 kΩ or higher

    NG : REPLACE FRONT DOOR LOCK LH 

    Fig 1: Identifying Front Door Lock LH Connector Terminals
    G04476000Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  3. INSPECT FRONT DOOR LOCK LH (DOOR LOCK MOTOR) 
    1. Apply battery voltage to the door lock and check operation of the door lock motor.

      OK 

      MEASUREMENT SPECIFIED CONDITION

      Measurement Condition Specified Condition
      Battery positive (+) --> Terminal 4
      Battery negative (-) --> Terminal 1      		 Lock
      Battery positive (+) --> Terminal 1
      Battery negative (-) --> Terminal 4      		 Unlock

    NG : REPLACE FRONT DOOR LOCK LH 

    Fig 2: Identifying Front Door Lock LH Connector Terminals
    G04476001Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  4. CHECK WIRE HARNESS (MOTOR - DRIVER SIDE JUNCTION BLOCK, ECU AND BODY GROUND) 
    Fig 3: Identifying B7 ECU Connector Terminals
    G04476002Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the D12 lock connector.
    2. Disconnect the B7 ECU connector.
    3. Disconnect the 1H junction block connector.
    4. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SWITCH CONDITION

      Tester Connection Specified Condition
      D12-4 - 1H-8 (ACT+) Below 1 Ω
      D12-1 - B7-5 (ACTD)
      D12-8 - B7-25 (LSWD)
      D12-9 - 1H-16 (L2)
      D12-10 - B7-9 (UL3)
      D12-7 - Body ground

    NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK : REPLACE DRIVER SIDE JUNCTION BLOCK 

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