SEAT BELT WARNING SYSTEM(w/ Occupant Classification System) Driver Side Seat Belt Warning Light does not Operate

DESCRIPTION

The seat belt warning light on the combination meter assembly illuminates, blinks or turns off in accordance with the state of the front seat inner belt assembly LH.

WIRING DIAGRAM

B006HY2E09
*a Combination Meter Assembly (Meter Circuit Plate)
*b Airbag ECU Assembly
*c Front Seat Inner Belt Assembly LH
*d CAN Communication Line

CAUTION / NOTICE / HINT

Note

The seat belt warning system uses the CAN communication system. First, confirm that there are no malfunctions in the CAN communication system. Refer to How to Proceed with Troubleshooting.

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Tech Tips

The seat belt warning light on the combination meter assembly is used for both the driver seat and front passenger seat.Check that the operation of the seat belt warning light is normal first.

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If the seat belt warning light does not operate for both the driver seat and front passenger seat, replace the meter circuit plate.

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PROCEDURE


  1. CHECK DTC OUTPUT (AIRBAG SYSTEM)


    1. Clear the DTCs.

      Click here


      Body Electrical > SRS Airbag > Clear DTCs

    2. Check for DTCs.

      Click here


      Body Electrical > SRS Airbag > Trouble Codes
      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    B

    GO TO AIRBAG SYSTEM Click here

    A

  2. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / SRS Airbag / Data List.

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


      Body Electrical > SRS Airbag > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Left side Buckle SW LH buckle switch Unset, Set or NG

      Unset: Seat belt not fastened

      Set: Seat belt fastened

      NG: Data is not determined

      		 -

      Body Electrical > SRS Airbag > Data List
      Tester Display
      Left side Buckle SW
      Result
      Result Proceed to
      Unset or Set is displayed on the GTS according to the driver seat belt condition A
      Unset or Set is not displayed correctly on the GTS according to the driver seat belt condition B
      NG is displayed on the GTS C

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE FRONT SEAT INNER BELT ASSEMBLY LH Click here

    C

    REPLACE AIRBAG ECU ASSEMBLY Click here