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

DESCRIPTION

The combination meter detects the state of the front seat inner belt RH*1 (or LH*2) when the front passenger seat is occupied with the ignition switch ON. If the front passenger seat belt is not fastened, the front passenger side seat belt warning light of the telltale light blinks. If the seat belt is fastened (driver side seat belt is fastened), the warning light goes off.

*1: for LHD

*2: for RHD

WIRING DIAGRAM

A00OV23E01 A00OV23E02

INSPECTION PROCEDURE

Tech Tips

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (PASSENGER SIDE SET BELTT BUCKLE SWITCH)


    1. Check the Data List for proper functioning of the front passenger side seat belt buckle switch Click here.

      Combination Meter
      Item Test Part Control Range Diagnostic Note
      P-Seatbelt Buckle SW Front passenger side seat belt buckle signal / ON or OFF

      ON: Front passenger side seat belt fastened

      OFF: Front passenger side seat belt unfastened

      		 -.
      OK
      The display is as specified in the normal condition column.

    NG

    INSPECT FRONT SEAT INNER BELT ASSEMBLY Click here

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

  2. INSPECT FRONT SEAT INNER BELT ASSEMBLY


    1. A00OV9OE01
      Text in Illustration
      *A w/o Pre-crash Safety System
      *B w/ Pre-crash Safety System

      Remove the front seat inner belt assembly Click here.

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

      Standard Resistance
      w/o Pre-crash Safety System
      Tester Connection Switch Condition Specified Condition
      1 (+) - 2 (E) Front passenger side seat belt fastened 1 MΩ or higher
      Front passenger seat belt unfastened Below 1 Ω
      w/o Pre-crash Safety System
      Tester Connection Switch Condition Specified Condition
      3 (+) - 4 (E) Front passenger seat belt fastened 1 MΩ or higher
      Front passenger seat belt unfastened Below 1 Ω

    NG

    REPLACE FRONT SEAT INNER BELT ASSEMBLY Click here

    OK

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


    • *1: for LHD

    • *2: for RHD


    1. w/o Pre-crash Safety System


      1. Disconnect the H13*1 or G30*2 front seat inner belt assembly connector.

    2. w/ Pre-crash Safety System:


      1. Disconnect the H5*1 or G48*2 front seat inner belt assembly connector.

    3. Disconnect the D66 combination meter assembly connector.

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

      Standard Resistance
      for LHD (w/o Pre-crash Safety System)
      Tester Connection Condition Specified Condition
      H13-1 (+) - D66-11 (PKB1) Always Below 1 Ω
      H13-1 (+) or D66-11 (PKB1) - Body ground Always 1 MΩ or higher
      H13-2 (E) - Body ground Always Below 1 Ω
      for LHD (w/ Pre-crash Safety System)
      Tester Connection Condition Specified Condition
      H5-3 (+) - D66-11 (PKB1) Always Below 1 Ω
      H5-3 (+) or D66-11 (PKB1) - Body ground Always 1 MΩ or higher
      H13-4 (E) - Body ground Always Below 1 Ω
      for RHD (w/o Pre-crash Safety System)
      Tester Connection Condition Specified Condition
      G30-1 (+) - D66-11 (PKB1) Always Below 1 Ω
      G30-1 (+) or D66-11 (PKB1) - Body ground Always 1 MΩ or higher
      G30-2 (E) - Body ground Always Below 1 Ω
      for LHD (w/ Pre-crash Safety System)
      Tester Connection Condition Specified Condition
      G48-3 (+) - D66-11 (PKB1) Always Below 1 Ω
      G48-3 (+) or D66-11 (PKB1) - Body ground Always 1 MΩ or higher
      G48-4 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT SEPARATE TYPE FRONT SEAT CUSHION PAD


    1. for Manual Seat:

      Remove the front seat assembly Click here.

    2. A00OSJFE02

      for Power Seat:

      Remove the front seat assembly Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 3 More than 147 N (15 kgf, 33.0 lbf) applied to occupant detection sensor Below 100 Ω
      Result
      Result Proceed to
      OK A
      NG (for Manual Seat) B
      NG (for Power Seat) C

      If the result is not as specified, replace the separate type front seat cushion pad.


    B

    REPLACE SEPARATE TYPE FRONT SEAT CUSHION PAD Click here

    C

    REPLACE SEPARATE TYPE FRONT SEAT CUSHION PAD Click here

    A

    REPLACE COMBINATION METER ASSEMBLY Click here