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

DESCRIPTION

The occupant detection sensor (separate type front seat cushion pad*1 or front seat cushion pad with cover [for Front Passenger Side]*2) detects if the passenger seat is occupied and sends signals to the combination meter assembly. The front seat inner belt assembly (for Front Passenger Side) detects the passenger seat belt condition and sends signals to the combination meter assembly. After receiving the signals from the occupant detection sensor (separate type front seat cushion pad*1 or front seat cushion pad with cover [for Front Passenger Side]*2) and front seat inner belt assembly (for Front Passenger Side), the seat belt warning light on the combination meter assembly will blink or go off.


WIRING DIAGRAM


  1. for LHD

    B002H6RE03
    B002H3DE01
    for Manual Seat
    *1 Front Seat Inner Belt Assembly RH
    *2 Occupant Detection Sensor
    *3 Separate Type Front Seat Cushion Pad RH
    *4 Combination Meter Assembly

  2. for RHD

    B002H6RE02
    B002H3DE02
    for Manual Seat
    *1 Front Seat Inner Belt Assembly LH
    *2 Occupant Detection Sensor
    *3 Separate Type Front Seat Cushion Pad LH
    *4 Combination Meter Assembly

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 the How to Proceed with Troubleshooting procedure.

    Click here

  • When replacing the combination meter assembly, make sure to replace it with a new one.

PROCEDURE


  1. READ VALUE USING GTS (P-Seatbelt Buckle SW, Passenger Occupant Detection Switch)


    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 / 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 seat belt buckle switch signal ON or OFF

      OFF: Front passenger seat belt fastened

      ON: Front passenger seat belt not fastened

      		 Perform the inspection while sitting in the front passenger side seat.
      Passenger Occupant Detection Switch Occupant detection sensor signal ON or OFF

      ON: Front passenger seat occupied

      OFF: Front passenger seat not occupied

      		 Perform the inspection while passenger seat belt not fastened.

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

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

  2. INSPECT FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side)


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


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


      Result
      Result Proceed to
      OK (for L-Sport Seat Type) A
      OK (for F-Sport Seat Type) B
      NG C

    B

    INSPECT FRONT SEAT CUSHION PAD WITH COVER (for Front Passenger Side) Click here

    C

    REPLACE FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side) for Power Seat: Click here for Manual Seat: Click here

    A

  3. INSPECT SEPARATE TYPE FRONT SEAT CUSHION PAD (for Front Passenger Side)


    1. Remove the separate type front seat cushion pad (for Front Passenger Side).

      Click here

    2. Inspect the separate type front seat cushion pad (for Front Passenger Side).

      Click here

      Result
      Result Proceed to
      OK (for Power Seat) A
      OK (for Manual Seat) B
      NG C

    B

    CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT ASSEMBLY [for Front Passenger Side] - COMBINATION METER ASSEMBLY AND BODY GROUND) Click here

    C

    REPLACE SEPARATE TYPE FRONT SEAT CUSHION PAD (for Front Passenger Side) Click here

    A

  4. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - SEPARATE TYPE FRONT SEAT CUSHION PAD [for Front Passenger Side])


    1. Disconnect the I10 combination meter assembly connector.

    2. Disconnect the f13*1 or g8*2 separate type front seat cushion pad (for Front Passenfer Side) connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      I10-6 (P/SB) - f13-3 Always Below 1 Ω
      I10-6 (P/SB) or f13-3 - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      I10-6 (P/SB) - g8-3 Always Below 1 Ω
      I10-6 (P/SB) or g8-3 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT ASSEMBLY- SEPARATE TYPE FRONT SEAT CUSHION PAD AND BODY GROUND)


    • *1: for LHD

    • *2: for RHD


    1. Disconnect the f11*1 or g7*2 front seat inner belt assembly (for Front Passenger Side) connector.

    2. Disconnect the f13*1 or g8*2 separate type front seat cushion pad (for Front Passenger Side) connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      f11-3 - f13-1 Always Below 1 Ω
      f11-3 or f13-1 - Body ground Always 10 kΩ or higher
      f11-2 - Body ground Always Below 1 Ω
      for RHD
      Tester Connection Condition Specified Condition
      g7-3 - g8-1 Always Below 1 Ω
      g7-3 or g8-1 - Body ground Always 10 kΩ or higher
      g7-2 - 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

  6. CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT ASSEMBLY [for Front Passenger Side] - COMBINATION METER ASSEMBLY AND BODY GROUND)


    1. Disconnect the P43*1 or Q48*2 front seat inner belt assembly (for Front Passenger Side) connector.


      • *1: for LHD

      • *2: for RHD

    2. Disconnect the I10 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
      P43-15 (+) - I10-6 (P/SB) Always Below 1 Ω
      P43-15 (+) or I10-6 (P/SB) - Body ground Always 10 kΩ or higher
      P43-9 (E) - Body ground Always Below 1 Ω
      for RHD
      Tester Connection Condition Specified Condition
      Q48-15 (+) - I10-6 (P/SB) Always Below 1 Ω
      Q48-15 (+) or I10-6 (P/SB) - Body ground Always 10 kΩ or higher
      Q48-9 (E) - 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

  7. INSPECT FRONT SEAT CUSHION PAD WITH COVER (for Front Passenger Side)


    1. Remove the front seat cushion pad with cover (for Front Passenger Side).

      Click here

    2. Inspect the front seat cushion pad with cover (for Front Passenger Side).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT SEAT CUSHION PAD WITH COVER (for Front Passenger Side) Click here

    OK

  8. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FRONT SEAT CUSHION PAD WITH COVER [for Front Passenger Side])


    1. Disconnect the I10 combination meter assembly connector.

    2. Disconnect the f13*1 or g8*2 front seat cushion pad with cover [for Front Passenger Side] connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      I10-6 (P/SB) - f13-3 Always Below 1 Ω
      I10-6 (P/SB) or f13-3 - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      I10-6 (P/SB) - g8-3 Always Below 1 Ω
      I10-6 (P/SB) or g8-3 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 5 Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR