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Seat Belt Warning System: Inspection

  1. INSPECT FRONT SEAT INNER BELT ASSY LH 
    1. Check the buckle switch.
      1. Fasten the seat belt (buckle switch is ON).
      2. Measure the resistance between the terminals.

        Standard: 

        STANDARD SPECIFICATION

        Tester Connection Specified Condition
        A-1 - A-3 1,330 Ω
      3. Release the seat belt (buckle switch is OFF).
      4. Measure the resistance between the terminals.
        Fig 1: Inspecting Front Seat Inner Belt Assembly (LH)
        G03195296Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 

      STANDARD SPECIFICATION

      Tester Connection Specified Condition
      A-1 - A-3 330 Ω

      If the result is not as specified, replace the inner belt assy.

  2. INSPECT FRONT SEAT INNER BELT ASSY RH 
    1. Check the buckle switch.
      1. Fasten the seat belt (buckle switch is ON).
      2. Measure the resistance between the terminals.

        Standard: 

        STANDARD SPECIFICATION

        Tester Connection Specified Condition
        A-1 -A-3 Below 1 Ω
      3. Release the seat belt (buckle switch is OFF).
      4. Measure the resistance between the terminals.
        Fig 2: Inspecting Front Seat Inner Belt Assembly (RH)
        G03195297Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard: 

        STANDARD SPECIFICATION

        Tester Connection Specified Condition
        A-1 -A-3 10 kΩ or higher

        If the result is not as specified, replace the inner belt assy.

    2. Check the circuit for the airbag seat position sensor.
      1. Measure the resistance between the terminals.

        Standard: 

        STANDARD SPECIFICATION

        Tester Connection Specified Condition
        1 - 2 (connector for airbag seat position sensor) Below 1 Ω

        If the result is not as specified, replace the inner belt assy.

        Fig 3: Checking Circuit For Airbag Seat Position Sensor
        G03195298Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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