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Seat Belt Warning System: Inspection

  1. 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: 

        FRONT SEAT INNER BELT ASSY RH (BUCKLE SWITCH ON) CONDITION

        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.

      Standard: 

      FRONT SEAT INNER BELT ASSY RH (BUCKLE SWITCH OFF) CONDITION

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

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

      Fig 1: Identifying Front Seat Inner Belt Assembly (RH)
      G03094896Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. 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: 

        FRONT SEAT INNER BELT ASSY LH (BUCKLE SWITCH ON) CONDITION

        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.

      Standard: 

      FRONT SEAT INNER BELT ASSY LH (BUCKLE SWITCH OFF) CONDITION

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

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

      Fig 2: Identifying Front Seat Inner Belt Assembly (LH)
      G03094897Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the circuit for the airbag seat position sensor.
      1. Measure the resistance between the terminals.

        Standard: 

        AIRBAG SEAT POSITION SENSOR CONDITION

        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: Identifying Connector For Airbag Seat Position Sensor
        G03094898Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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