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Inspection Procedure

  1. READ VALUE OF INTELLIGENT TESTER (BACK DOOR OPENER SWITCH AND BACK DOOR) 
    1. Check the DATA LIST for proper functioning of back door opener switch.

      Main body ECU 

      MAIN BODY ECU DATA LIST

      Item Measurement Item / Display (Range) Normal Condition Diagnostic Note
      B DOR OPEN SW Back door opener switch signal / ON or OFF OK: Back door opener switch is pushed
      OFF: Back door opener switch is not pushed      		 -

      OK : ON (Back door opener switch is pushed) appears on the screen. 

    2. Check the DATA LIST for proper functioning of the back door open judgment.

      Main body ECU 

      MAIN BODY ECU DATA LIST

      Item Measurement Item / Display (Range) Normal Condition Diagnostic Note
      TRNK/B DOR OPEN Back door open judgment /PROHIBT or PERMIT PROHIBT: Back door opening is impossible
      PERMIT: Back door opening is possible      		 -

      OK : PERMIT (Back door can be opened) appears on the screen. 

      Result 

      RESULT REFERENCE

      Result Proceed to
      NG (back door opener switch) A
      NG (back door) B
      OK C

    B : Go to step   4 

    C : Go to step   5 

    A : Go to next step 

  2. INSPECT BACK DOOR LOCK 
    1. Remove the back door opener switch.
    2. Measure the resistance of the switch.

      Standard resistance 

      TESTER CONNECTION SWITCH CONDITION

      Tester Connection Switch Condition Specified Condition
      1 - 2 Pushed (ON) Below 1 Ω
      Not pushed (OFF) 10 kΩ or higher

    NG : REPLACE BACK DOOR OPENER SWITCH 

    Fig 1: Inspecting Back Door Lock
    G04476016Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  3. CHECK WIRE HARNESS (SWITCH - ECU AND BODY GROUND) 
    1. Disconnect the L4 switch connector.
    2. Disconnect the B7 ECU connector.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SWITCH CONDITION

      Tester Connection Specified Condition
      L4-2 - B7-12 (BDSU) Below 1 Ω
      L4-1 - Body ground

    NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

    Fig 2: Identifying Back Door Opener Switch Connector Terminal
    G04476017Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  4. INSPECT BACK DOOR LOCK (DOOR LOCK MOTOR) 
    1. Check operation of the back door lock.
      1. Using a screwdriver, move the latch to the full-latch position.
      2. Apply battery voltage to the door lock and check operation the latch.

        OK 

        MEASUREMENT SPECIFIED CONDITION

        Measurement Condition Specified Condition
        Battery positive (+) --> Terminal 4
        Battery negative (-) --> Terminal 3        		 Latch turns to open-latch position

    NG : REPLACE BACK DOOR LOCK 

    Fig 3: Inspecting Back Door Lock (Door Lock Motor)
    G04476018Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  5. INSPECT BACK DOOR LOCK (COURTESY SWITCH) 
    1. Measure the resistance of the switch.

      Standard resistance 

      TESTER CONNECTION SWITCH CONDITION

      Tester Connection Switch Condition Specified Condition
      1 - 2 Open-latch Below 1 Ω
      Half-latch
      Full-latch 10 kΩ or higher
      Over-latch

    NG : REPLACE BACK DOOR LOCK 

    Fig 4: Inspecting Back Door Lock (Courtesy Switch)
    G04476019Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : GO TO NEXT STEP 

  6. CHECK WIRE HARNESS (MOTOR - DRIVE SIDE JUNCTION BLOCK, ECU AND BODY GROUND) 
    Fig 5: Identifying Drive Side Junction Block Connector Terminal (ECU And Body)
    G04476020Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Disconnect the L3 lock connector.
    2. Disconnect the B7 ECU connector.
    3. Disconnect the 1D junction block connector.
    4. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SWITCH CONDITION

      Tester Connection Specified Condition
      L3-2 - 1D-7 (BCTY) Below 1 Ω
      L3-4 - B7-1 (BACT)
      L3-1 - Body ground
      L3-3 - Body ground

    NG : REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK : REPLACE DRIVER SIDE JUNCTION BLOCK 

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