SEAT BELT WARNING SYSTEM Driver Side Seat Belt Warning Light does not Operate

DESCRIPTION

When the ignition switch is turned to ON, the center airbag sensor transmits front seat inner belt LH*1 (or RH*2) state signals to the combination meter through the CAN. If the driver side seat belt is not fastened, the combination meter blinks the front seat belt warning light. If the seat belt is fastened, the warning light goes off.

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

B001IK3E11
B001IK3E12

CAUTION / NOTICE / HINT

CAUTION:

Before starting work, wait at least a minute after the ignition switch is turned off and after the cable is disconnected from the negative (-) battery terminal (SRS parts are equipped with a backup power source. If work is started within a minute of turning the ignition switch off and disconnecting the cable from the negative (-) battery terminal, SRS parts may deploy).

Note


  • When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

  • The seat belt warning system uses the CAN communication system. First, confirm that there is no malfunction in the CAN communication system. Refer to the How to Proceed with Troubleshooting procedure Click here

  • Malfunction symptoms of SRS parts are difficult to confirm. DTCs are the most important source of information when troubleshooting. During troubleshooting, always confirm DTCs before disconnecting the cable from the negative (-) battery terminal.

PROCEDURE


  1. CHECK FOR DTC (AIRBAG SYSTEM)


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC is not output A
      Airbag system DTC is output B

    B

    GO TO AIRBAG SYSTEM Click here

    A

  2. PERFORM ACTIVE TEST USING GTS (DRIVER SIDE SEAT BELT WARNING LIGHT)


    1. Operate the GTS according to the display and select Active Test Click here.

      Combination Meter
      Item Test Part Control Range Diagnostic Note
      Driver Side Seat Belt Front seat belt warning light ON/OFF Confirm that the vehicle is stopped and the engine is idling.
      OK
      Driver side seat belt warning light condition can be switched by Active Test.

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

  3. REPLACE CENTER AIRBAG SENSOR ASSEMBLY


    1. Temporarily replace the center airbag sensor with a new one Click here.


    NEXT

  4. CHECK FRONT SEAT BELT WARNING LIGHT


    1. Check the front seat belt warning light function Click here.

      OK
      Front seat belt warning light operates normally.

    OK

    END (CENTER AIRBAG SENSOR ASEMBLY IS DEFECTIVE)

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here