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

DESCRIPTION

When the engine switch is on, 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

A01VUAVE05

CAUTION / NOTICE / HINT

Note

The seat belt warning system (w/o Occupant Classification 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

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 engine switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / SRS Airbag or Combination Meter / 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*1 Unset, Set or NG

      Unset: Seat belt not fastened

      Set: Seat belt fastened

      NG: Data is not determined

      		 -
      Right side Buckle SW RH buckle switch*2 Unset, Set or NG

      Unset: Seat belt not fastened

      Set: Seat belt fastened

      NG: Data is not determined

      		 -

      • *1: for RHD

      • *2: for LHD


      Body Electrical > SRS Airbag > Data List
      Tester Display
      Left side Buckle SW
      Right side Buckle SW

      Body Electrical > Combination Meter > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Passenger Occupant Detection Switch Occupant detection sensor signal OFF/ON

      ON: Front passenger seat occupied

      OFF: Front passenger seat not occupied

      		 -

      Body Electrical > Combination Meter > Data List
      Tester Display
      Passenger Occupant Detection Switch
      Result
      Result Proceed to
      The value of each Data List item changes accordingly A
      Unset or set is not displayed correctly on the GTS according to the passenger seat belt condition B
      The value of the Data List item "Passenger Occupant Detection Switch'' does not change according to the front passenger seat condition. (for Sports Seat Type) C
      The value of the Data List item "Passenger Occupant Detection Switch'' does not change according to the front passenger seat condition. (for Standard Seat Type) D
      The value of each Data List item does not change E

    A

    REPLACE COMBINATION METER ASSEMBLY Click here

    B

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

    D

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

    E

    REPLACE AIRBAG SENSOR ASSEMBLY Click here

    C

  3. INSPECT FRONT SEAT CUSHION PAD WITH COVER (OCCUPANT DETECTION SENSOR)


    1. Remove the front seat cushion pad with cover (occupant detection sensor).

      Click here

    2. Inspect the front seat cushion pad with cover (occupant detection sensor).

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT SEAT CUSHION PAD WITH COVER (OCCUPANT DETECTION SENSOR) Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FRONT SEAT CUSHION PAD WITH COVER (OCCUPANT DETECTION SENSOR) AND BODY GROUND)


    1. Disconnect the J10 combination meter assembly connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      J10-7 (PODS) - b15-3 Always Below 1 Ω
      J10-7 (PODS) or b15-3 - Body ground Always 10 kΩ or higher
      b15-1- Body ground Always Below 1 Ω
      for RHD
      Tester Connection Condition Specified Condition
      J10-7 (PODS) - c15-3 Always Below 1 Ω
      J10-7 (PODS) or c15-3 - Body ground Always 10 kΩ or higher
      c15-1- 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

  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

    NG

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

    OK

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


    1. Disconnect the J10 combination meter assembly connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      J10-7 (PODS) - b15-3 Always Below 1 Ω
      J10-7 (PODS) or b15-3 - Body ground Always 10 kΩ or higher
      b15-1- Body ground Always Below 1 Ω
      for RHD
      Tester Connection Condition Specified Condition
      J10-7 (PODS) - c15-3 Always Below 1 Ω
      J10-7 (PODS) or c15-3 - Body ground Always 10 kΩ or higher
      c15-1- 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