SEAT BELT WARNING SYSTEM(w/o Occupant Classification System) Front Passenger Side Seat Belt Warning Light Malfunction

DESCRIPTION

The combination meter assembly detects the state of the front seat inner belt assembly RH*1 (or LH*2) when the front passenger seat is occupied with the ignition switch ON. If the front passenger side seat belt is not fastened, the front side seat belt warning light of the combination meter assembly blinks. If the seat belt is fastened, the warning light goes off.

*1: for LHD

*2: for RHD

Tech Tips

The front seat belt warning light on the combination meter assembly is used for both the driver side seat and front passenger side seat.

WIRING DIAGRAM

A01KBZGE01

PROCEDURE


  1. READ VALUE USING GTS (P-SEATBELT BUCKLE SW)


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Combination Meter / Data List.

    5. Read the Data List according to the display on the GTS.


      Body Electrical > Combination Meter > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      P-Seatbelt Buckle SW Front passenger side seat belt buckle switch signal ON/OFF

      ON: Front passenger side seat belt fastened

      OFF: Front passenger side seat belt unfastened

      		 Perform the inspection while sitting in the front passenger seat.

      Body Electrical > Combination Meter > Data List
      Tester Display
      P-Seatbelt Buckle SW
      Result
      Result Proceed to
      ON or OFF is displayed on the GTS screen according to the front passenger side seat belt condition A
      ON or OFF is not displayed normally on the GTS screen according to the front passenger side seat belt condition B

    A

    REPLACE COMBINATION METER ASSEMBLY Click here

    B

  2. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FRONT SEAT INNER BELT ASSEMBLY AND BODY GROUND)


    1. Disconnect the M31*1 or N35*2 front passenger seat inner belt assembly connector.


      • *1: for LHD

        *2: for RHD

    2. Disconnect the G16 combination meter assembly connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      M31-3 (+) - G16-7 (P/SB) Always Below 1 Ω
      M31-2 (E) - Body ground
      M31-3 (+) - Body ground 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      N35-3 (+) - G16-7 (P/SB) Always Below 1 Ω
      N35-2 (E) - Body ground
      N35-3 (+) - Body ground 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. REPLACE FRONT SEAT INNER BELT ASSEMBLY


    1. Temporarily replace the front seat inner belt assembly RH*1 or LH*2 with a new or normally functioning one.

      Click here


      • *1: for LHD

      • *2: for RHD

      Result
      Proceed to
      NEXT

    NEXT

  4. INSPECT SEPARATE TYPE FRONT SEAT CUSHION PAD


    1. Remove the separate type front seat cushion pad.

      Click here

    2. Inspect the separate type front seat cushion pad.

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE SEPARATE TYPE FRONT SEAT CUSHION PAD Click here