SEAT BELT WARNING SYSTEM Front Passenger Side Seat Belt Warning Light Malfunction

DESCRIPTION

When the engine switch is on (IG), the combination meter assembly monitors the state of the passenger side seat and the front seat inner belt assembly (for Front Passenger Side). If the front passenger side seat belt is not fastened, the seat belt warning light of the combination meter assembly blinks. If the seat belt is fastened, the warning light goes off.

Tech Tips

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

WIRING DIAGRAM


  1. for LHD

    B006L3OE01

  2. for RHD (for Manual Seat)

    B006NKLE01

  3. for RHD

    B006L3OE02

CAUTION / NOTICE / HINT

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.

PROCEDURE


  1. READ VALUE USING GTS (P-SEATBELT BUCKLE SW, 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
      P-Seatbelt Buckle SW Front passenger seat belt buckle switch signal ON or OFF

      ON: Front passenger seat belt not fastened

      OFF: Front passenger seat belt 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
      Result
      Result Proceed to
      ON or OFF is displayed on the GTS screen according to the front passenger side seat belt condition and front passenger seat condition (occupied or unoccupied) A
      ON or OFF is not displayed normally on the GTS screen according to the front passenger side seat belt condition (for LHD) B
      ON or OFF is not displayed normally on the GTS screen according to the front passenger seat condition (occupied or unoccupied) [for LHD] C
      ON or OFF is not displayed normally on the GTS screen according to the front passenger side seat belt condition (for RHD) D
      ON or OFF is not displayed normally on the GTS screen according to the front passenger seat condition (occupied or unoccupied) [for RHD] (for Power Seat) E
      ON or OFF is not displayed normally on the GTS screen according to the front passenger seat condition (occupied or unoccupied) [for RHD] (for Manual Seat) F

    A

    REPLACE COMBINATION METER ASSEMBLY Click here

    C

    CHECK HARNESS AND CONNECTOR (SEPARATE TYPE FRONT SEAT CUSHION PAD [OCCUPANT DETECTION SENSOR] - COMBINATION METER ASSEMBLY AND BODY GROUND) Click here

    D

    CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND) Click here

    E

    CHECK HARNESS AND CONNECTOR (SEPARATE TYPE FRONT SEAT CUSHION PAD [OCCUPANT DETECTION SENSOR] - COMBINATION METER ASSEMBLY AND BODY GROUND) Click here

    F

    CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND) Click here

    B

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


    1. Disconnect the G16 combination meter assembly connector.

    2. Disconnect the W9 front seat inner belt assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G16-30 (PBKL) - W9-1 (+) Always Below 1 Ω
      W9-2 (E) - Body ground Always Below 1 Ω
      G16-30 (PBKL) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT FRONT SEAT INNER BELT ASSEMBLY RH


    1. Remove the front seat inner belt assembly RH.

      for Manual Seat:

      Click here

      for Power Seat:

      Click here

    2. Inspect the front seat inner belt assembly RH.

      for Manual Seat:

      Click here

      for Power Seat:

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE FRONT SEAT INNER BELT ASSEMBLY RH for Manual Seat: REPLACE FRONT SEAT INNER BELT ASSEMBLY RH Click here
    REPLACE FRONT SEAT INNER BELT ASSEMBLY RH for Power Seat: REPLACE FRONT SEAT INNER BELT ASSEMBLY RH Click here

  4. CHECK HARNESS AND CONNECTOR (SEPARATE TYPE FRONT SEAT CUSHION PAD [OCCUPANT DETECTION SENSOR] - COMBINATION METER ASSEMBLY AND BODY GROUND)


    1. Disconnect the G16 combination meter assembly connector.

    2. Disconnect the W10 separate type front seat cushion pad (occupant detection sensor) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G16-24 (PODS) - W10-3 (+) Always Below 1 Ω
      W10-1 (E) - Body ground Always Below 1 Ω
      G16-24 (PODS) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT SEPARATE TYPE FRONT SEAT CUSHION PAD (OCCUPANT DETECTION SENSOR)


    1. Remove the separate type front seat cushion pad (occupant detection sensor).

      Click here

    2. Inspect the separate type front seat cushion pad (occupant detection sensor).

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

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

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


    1. Disconnect the G16 combination meter assembly connector.

    2. Disconnect the K37*1 or W22*2 front seat inner belt assembly LH connector.


      • *1: for Manual Seat

      • *2: for Power Seat

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

      Standard Resistance
      for Manual Seat
      Tester Connection Condition Specified Condition
      G16-30 (PBKL) - K37-13 (+) Always Below 1 Ω
      K37-8 (E) - Body ground Always Below 1 Ω
      G16-30 (PBKL) - Body ground Always 10 kΩ or higher
      for Power Seat
      Tester Connection Condition Specified Condition
      G16-30 (PBKL) - W22-1 (+) Always Below 1 Ω
      W22-2 (E) - Body ground Always Below 1 Ω
      G16-30 (PBKL) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. INSPECT FRONT SEAT INNER BELT ASSEMBLY LH


    1. Remove the front seat inner belt assembly LH.

      for Manual Seat:

      Click here

      for Power Seat:

      Click here

    2. Inspect the front seat inner belt assembly LH.

      for Manual Seat:

      Click here

      for Power Seat:

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE FRONT SEAT INNER BELT ASSEMBLY LH for Manual Seat: REPLACE FRONT SEAT INNER BELT ASSEMBLY LH Click here
    REPLACE FRONT SEAT INNER BELT ASSEMBLY LH for Power Seat: REPLACE FRONT SEAT INNER BELT ASSEMBLY LH Click here

  8. CHECK HARNESS AND CONNECTOR (SEPARATE TYPE FRONT SEAT CUSHION PAD [OCCUPANT DETECTION SENSOR] - COMBINATION METER ASSEMBLY AND BODY GROUND)


    1. Disconnect the G16 combination meter assembly connector.

    2. Disconnect the W23 separate type front seat cushion pad (occupant detection sensor) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G16-24 (PODS) - W23-3 (+) Always Below 1 Ω
      W23-2 (E) - Body ground Always Below 1 Ω
      G16-24 (PODS) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. INSPECT SEPARATE TYPE FRONT SEAT CUSHION PAD (OCCUPANT DETECTION SENSOR)


    1. Remove the separate type front seat cushion pad (occupant detection sensor).

      Click here

    2. Inspect the separate type front seat cushion pad (occupant detection sensor).

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

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

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


    1. Disconnect the G16 combination meter assembly connector.

    2. Disconnect the K37 front seat inner belt assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G16-24 (PODS) - K37-2 (+) Always Below 1 Ω
      K37-15 (E) - Body ground Always Below 1 Ω
      G16-24 (PODS) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. INSPECT FRONT SEAT INNER BELT ASSEMBLY LH


    1. Remove the front seat inner belt assembly LH.

      Click here

    2. Inspect the front seat inner belt assembly LH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT SEAT INNER BELT ASSEMBLY LH Click here

    OK

  12. INSPECT SEPARATE TYPE FRONT SEAT CUSHION PAD (OCCUPANT DETECTION SENSOR)


    1. Remove the separate type front seat cushion pad (occupant detection sensor).

      Click here

    2. Inspect the separate type front seat cushion pad (occupant detection sensor).

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

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