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

DESCRIPTION

When the engine switch is on (IG), the airbag sensor assembly sends the front seat inner belt assembly (Front Passenger Seat) state to the combination meter assembly via CAN communication. The seat belt warning light on the combination meter assembly illuminates, blinks or turns off in accordance with the parking brake state, shift lever position, vehicle speed, front passenger seat belt state and whether the front passenger seat is occupied.

WIRING DIAGRAM

for LHD:

B006GS3E04

for RHD:

B006GS3E05

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.

    Click here

  • 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.

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.

  • If the seat belt warning light does not operate for both the driver seat and front passenger seat, replace the combination meter assembly.

    Click here

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
      OK
      DTCs are not output.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO AIRBAG SYSTEM Click here

    OK

  2. READ VALUE USING GTS (PASSENGER OCCUPANT DETECTION SWITCH)


    1. Connect the GTS to the DLC3.

    2. Turn the engine switch on (IG).

    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
      Passenger Occupant Detection Switch Occupant detection sensor signal ON or OFF

      ON: Front passenger seat occupied

      OFF: Front passenger seat not occupied

      		 -

      Body Electrical > Combination Meter > Data List
      Tester Display
      Passenger Occupant Detection Switch
      OK
      The GTS display changes correctly in response to the front passenger seat condition.
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

  3. INSPECT FRONT SEAT INNER BELT ASSEMBLY (FOR FRONT PASSENGER SEAT)


    1. Remove the front seat inner belt assembly (for Front Passenger Seat).

      Click here

    2. Inspect the front seat inner belt assembly (for Front Passenger Seat).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT SEAT INNER BELT ASSEMBLY (FOR FRONT PASSENGER SEAT) Click here

    OK

  4. INSPECT SEPARATE TYPE FRONT SEAT CUSHION PAD (FOR FRONT PASSENGER SEAT) (OCCUPANT DETECTION SENSOR)


    1. Remove the separate type front seat cushion pad (for Front Passenger Seat) (occupant detection sensor).

      Click here

    2. Inspect the separate type front seat cushion pad (for Front Passenger Seat) (occupant detection sensor).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE SEPARATE TYPE FRONT SEAT CUSHION PAD (FOR FRONT PASSENGER SEAT) (OCCUPANT DETECTION SENSOR) Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (SEPARATE TYPE FRONT SEAT CUSHION PAD (FOR FRONT PASSENGER SEAT) - COMBINATION METER ASSEMBLY AND BODY GROUND)


    1. for LHD:


      1. Disconnect the Q13 separate type front seat cushion pad RH (occupant detection sensor) connector.

      2. Disconnect the G34 combination meter assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        Q13-3 - G34-6 (PODS) Always Below 1 Ω
        Q13-3 or G34-6 (PODS) - Body ground Always 10 kΩ or higher
        Q13-1 - Body ground Always Below 1 Ω

    2. for RHD:


      1. Disconnect the Q33 separate type front seat cushion pad LH (occupant detection sensor) connector.

      2. Disconnect the G34 combination meter assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        Q33-3 - G34-6 (PODS) Always Below 1 Ω
        Q33-3 or G34-6 (PODS) - Body ground Always 10 kΩ or higher
        Q33-1 - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR