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

DTC Code DTC Name
Front Passenger Side Seat Belt Warning Light Malfunction

DESCRIPTION

The occupant detection sensor (separate type front seat cushion pad) detects if the passenger seat is occupied and sends signals to the combination meter assembly. The front seat inner belt assembly (front passenger seat) 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) and front seat inner belt assembly (front passenger seat), the front seat belt warning light on the combination meter assembly will blink or go off.

WIRING DIAGRAM

B371359E01

PROCEDURE

  1. READ VALUE USING GTS

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    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 unfastened

      The front passenger seat is occupied

      Body Electrical > Combination Meter > Data List

      Tester Display

      P-Seatbelt Buckle SW

    OK

    The GTS display changes correctly in response to the front passenger seat belt condition.

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE COMBINATION METER ASSEMBLY

    Click here

    NG

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

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

      Click here

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

      Click here

    Result

    Proceed to

    OK

    NG
    NG

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

    Click here

    OK

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

    1. Remove the front seat inner belt assembly (front passenger seat).

      Click hereClick here

    2. Inspect the front seat inner belt assembly (front passenger seat).

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE FRONT SEAT INNER BELT ASSEMBLY (FRONT PASSENGER SEAT)

    Click hereClick here

    OK

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

    1. Disconnect the E12 combination meter assembly connector.

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

      Standard Resistance

      Table 1. for LHD

      Tester Connection

      Condition

      Specified Condition

      E12-13 (P/SB) - K30-1 (+)

      Always

      Below 1 Ω

      E12-13 (P/SB) or K30-1 (+) - Body ground

      Always

      10 kΩ or higher

      K30-2 (E) - Body ground

      Always

      Below 1 Ω
      Table 2. for RHD

      Tester Connection

      Condition

      Specified Condition

      E12-13 (P/SB) - K24-1 (+)

      Always

      Below 1 Ω

      E12-13 (P/SB) or K24-1 (+) - Body ground

      Always

      10 kΩ or higher

      K24-2 (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