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Back Door Lock: Inspection

WARNING: This page is about a different car, the 2007 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT BACK DOOR LOCK ASSEMBLY (W/O POWER BACK DOOR SYSTEM) 
    1. Check operation of the door lock.
      1. Using a screwdriver, push the latch in order to put the back door lock in the locked condition (full-latch position).
      2. Apply battery voltage to the door lock and check operation of the latch.

        OK 

        MEASUREMENT CONNECTION SPECIFIED CONDITION REFERENCE TABLE

        Measurement Condition Specified Condition
        Battery positive (+) → Terminal 5
        Battery negative (-) → Terminal 3        		 Latch turns to open-latch position
        Fig 1: Identifying Back Door Lock Assembly (Without Power Back Door System)
        G05274626Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        If the result is not as specified, replace the door lock assembly.

    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Courtesy switch) 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE TABLE

      Tester Connection Door Lock Latch Position Specified Condition
      1 - 2 Open-latch Below 1 Ω
      1 - 2 Half-latch Below 1 Ω
      1 - 2 Full-latch 10 kΩ or higher
      1 - 2 Over-latch 10 kΩ or higher
      Fig 2: Checking Back Door Lock Operation
      G05270449Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      If the result is not as specified, replace the door lock assembly.

  2. INSPECT BACK DOOR LOCK ASSEMBLY (W/ POWER BACK DOOR SYSTEM) 
    1. Check operation of the door lock.
      1. Using a screwdriver, push the latch in order to put the back door lock in the locked condition (full-latch position).
      2. Apply battery voltage to the door lock and check operation of the latch.

        OK 

        MEASUREMENT CONNECTION SPECIFIED CONDITION REFERENCE TABLE

        Measurement Condition Specified Condition
        Battery positive (+) → Terminal 5
        Battery negative (-) → Terminal 7        		 Latch turns to open-latch position

        HINT:

        If the result is not as specified, replace the door lock assembly.

      3. Apply battery voltage to the door lock motor and check operation of the motor.

        OK: 

        MEASUREMENT CONNECTION SPECIFIED CONDITION REFERENCE TABLE

        Measurement Condition Specified Condition
        Battery positive (+) → Terminal 5
        Battery negative (-) → Terminal 7        		 Close operation (Clockwise rotation)
        Battery positive (+) → Terminal 7
        Battery negative (-) → Terminal 5        		 Release operation (Counterclockwise rotation)
        Fig 3: Identifying Back Door Lock Assembly (With Power Back Door System)
        G05274627Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        HINT:

        If the result is not as specified, replace the door lock assembly.

    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Courtesy switch) 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE TABLE (COURTESY SWITCH)

      Tester Connection Door Lock Latch Position Specified Condition
      1 - 6 Open-latch Below 1 Ω
      1 - 6 Half-latch Below 1 Ω
      1 - 6 Full-latch 10 kΩ or higher
      1 - 6 Over-latch 10 kΩ or higher

      HINT:

      If the result is not as specified, replace the door lock assembly.

    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Full-latch switch) 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE TABLE (FULL-LATCH SWITCH)

      Tester Connection Door Lock Latch Position Specified Condition
      2 - 4 Open-latch 10 kΩ or higher
      2 - 4 Half-latch 10 kΩ or higher
      2 - 4 Full-latch 10 kΩ or higher
      2 - 4 Over-latch Below 1 Ω

      HINT:

      If the result is not as specified, replace the door lock assembly.

    4. Measure the resistance according to the value(s) in the table below.

      Standard resistance (Half-latch switch) 

      TESTER CONNECTION SPECIFIED CONDITION REFERENCE TABLE (HALF-LATCH SWITCH)

      Tester Connection Door Lock Latch Position Specified Condition
      3 - 4 Open-latch Below 1 Ω
      3 - 4 Half-latch 10 kΩ or higher
      3 - 4 Full-latch 10 kΩ or higher
      3 - 4 Over-latch 10 kΩ or higher

      HINT:

      If the result is not as specified, replace the door lock assembly.

    5. Measure the resistance according to the value(s) in the table below.
      1. Full-latch:

        Connect the battery positive (+) lead to connector terminal 7 and the negative (-) lead to connector terminal 5.

        Fig 4: Checking Back Door Lock Assembly Operation
        G05274601Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard resistance 

        TESTER CONNECTION SPECIFIED CONDITION REFERENCE TABLE

        Tester Connection Driven Gear Position Specified Condition
        8 - 9 Release Below 1 Ω

        HINT:

        If the result is not as specified, replace the door lock assembly.

      2. Over-latch:

        Connect the battery positive (+) lead to connector terminal 5 and the negative (-) lead to connector terminal 7.

        Standard resistance 

        TESTER CONNECTION SPECIFIED CONDITION REFERENCE TABLE

        Tester Connection Driven Gear Position Specified Condition
        8 - 9 Close 10 kΩ or higher

        HINT:

        If the result is not as specified, replace the door lock assembly.

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