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Inspection Procedure

  1. READ VALUE USING TECHSTREAM (UNLOCK DETECTION SWITCH) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Main Body / Data List.
    5. According to the display on the Techstream, read the "Data List".
      1. Main Body 
        DATA LIST - MAIN BODY

        Tester Display Measurement Item/Range Normal Condition
        D-Door Lock Pos SW Driver side door unlock detection switch signal / ON or OFF ON Driver side door is unlocked
        OFF Driver side door is locked

        OK: 

        The display is as specified in the normal condition column. 

    NG: Go to step 2 

    OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE   .

  2. INSPECT FRONT DOOR LOCK ASSEMBLY LH (UNLOCK DETECTION SWITCH) 
    1. Remove the front door lock LH (see REMOVAL  ).
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      8 (LSSR) - 7 (E) Lock 10 kΩ or higher
      Unlock Below 1 Ω
    3. Reinstall the front door lock LH (see INSTALLATION  ).
    Fig 1: Identifying Front Door Lock Connector Terminals (LH)
    G05390962Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPLACE FRONT DOOR LOCK ASSEMBLY LH  (See REMOVAL  )

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY LH - MAIN BODY ECU AND BODY GROUND) 
    1. Disconnect the E6 front door lock LH connector.
    2. Disconnect the C45 main body ECU connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      E6-8 (LSSR) - C45-21 (LSWD) Always Below 1 Ω
      E6-8 (LSSR) - Body ground Always 10 kΩ or higher
      E6-7 (E) - Body ground Always Below 1 Ω
    4. Reconnect the front door lock LH connector.
    5. Reconnect the main body ECU connector.
    Fig 2: Identifying Front Door Lock (LH) And Main Body ECU Connector Terminals
    G05390963Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK : REPLACE MAIN BODY ECU