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 assembly (for Front Passenger Side) when the front passenger seat is occupied with the engine switch on (IG). If the front passenger seat belt is not fastened, the front passenger side seat belt warning light on the multi-media module receiver assembly blinks. If the seat belt is fastened, the warning light goes off.

WIRING DIAGRAM

B001A70E01

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      for LHD A
      for RHD B

    B

    CHECK FOR DTC Click here

    A

  2. CHECK FOR DTC


    1. Check for DTCs.

      Result
      Result Proceed to
      DTC is not output A
      CAN communication system DTC is output (for LHD) B
      Airbag system DTC is output C

    B

    Go to CAN COMMUNICATION SYSTEM Click here

    C

    Go to AIRBAG SYSTEM Click here

    A

  3. READ VALUE USING GTS (PASSENGER SIDE BUCKLE SWITCH)


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

      Combination Meter
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      P-Seatbelt Buckle SW Front passenger side seat belt buckle signal / ON or OFF

      ON: Front passenger side seat belt is fastened

      OFF: Front passenger side seat belt is unfastened

      		 -
      Passenger Occupant Detection Switch Occupant detection sensor signal / ON or OFF

      ON: Front passenger seat occupied

      OFF: Front passenger seat not occupied

      		 -
      Result
      Result Proceed to
      ON or OFF is displayed on the GTS screen according A
      ON or OFF is not displayed normally on the GTS screen according to the front passenger side seat belt condition B
      ON or OFF is not displayed normally on the GTS screen according to the front passenger seat condition (occupied or unoccupied) C

    B

    INSPECT FRONT SEAT INNER BELT ASSEMBLY LH Click here

    C

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

    A

  4. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY, BATTERY AND BODY GROUND)


    1. Disconnect the F76 multi-media module receiver assembly connector.

    2. Disconnect the E120 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F76-38 (PBEW) - E120-11 (WRNP) Always Below 1 Ω
      F76-38 (PBEW) or E120-11 (WRNP) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK MULTI-MEDIA MODULE RECEIVER ASSEMBLY


    1. B0018B1E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Combination Meter Assembly)

      Disconnect the E120 combination meter assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      E120-11 (WRNP) - Body ground Engine switch on (IG) 11 to 14 V

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

  6. 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
      Result Proceed to
      OK A
      NG B

    B

    REPLACE FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side) Click here

    A

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


    1. Disconnect the c70*1 or c7*2 front seat inner belt assembly LH connector.

      *1: w/ Climate Control System

      *2: w/o Climate Control System

    2. Disconnect the E120 combination meter assembly connector.

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

      Standard Resistance
      w/ Climate Control System
      Tester Connection Condition Specified Condition
      c70-3 (+) - E120-9 (PBKL) Always Below 1 Ω
      c70-3 (+) or E120-9 (PBKL) - Body ground Always 10 kΩ or higher
      c70-4 (E) - Body ground Always Below 1 Ω
      w/o Climate Control System
      Tester Connection Condition Specified Condition
      c7-3 (+) - E120-9 (PBKL) Always Below 1 Ω
      c7-3 (+) or E120-9 (PBKL) - Body ground Always 10 kΩ or higher
      c7-4 (E) - Body ground Always Below 1 Ω

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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


    1. B001AAFE02
      Text in Illustration
      *a

      Component without harness connected

      (Occupant Detection Sensor)

      Remove the front separate type seat cushion pad LH Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 3 Front passenger seat occupied Below 100 Ω
      1 - 3 Front passenger seat not occupied 10 kΩ or higher
      Result
      Result Proceed to
      OK A
      NG B

    B

    REPLACE FRONT SEPARATE TYPE SEAT CUSHION PAD Click here

    A

  9. 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
      Result Proceed to
      OK A
      NG B

    B

    REPLACE FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side) Click here

    A

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


    1. Disconnect the c7 front seat inner belt assembly LH connector.

    2. Disconnect the E120 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c7-1 (+) - E120-13 (PDOS) Always Below 1 Ω
      c7-1 (+) or E120-13 (PDOS) - Body ground Always 10 kΩ or higher
      c7-2 (E) - Body ground Always Below 1 Ω

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  11. CHECK FOR DTC


    1. Check for DTCs.

      Result
      Result Proceed to
      DTC is not output A
      CAN communication system DTC is output (for RHD) B
      Airbag system DTC is output C

    B

    Go to CAN COMMUNICATION SYSTEM Click here

    C

    Go to AIRBAG SYSTEM Click here

    A

  12. READ VALUE USING GTS (PASSENGER SIDE BUCKLE SWITCH)


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

      Combination Meter
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      P-Seatbelt Buckle SW Front passenger side seat belt buckle signal / ON or OFF

      ON: Front passenger side seat belt is fastened

      OFF: Front passenger side seat belt is unfastened

      		 -
      Passenger Occupant Detection Switch Occupant detection sensor signal / ON or OFF

      ON: Front passenger seat occupied

      OFF: Front passenger seat not occupied

      		 -
      Result
      Result Proceed to
      ON or OFF is displayed on the GTS screen according A
      ON or OFF is not displayed normally on the GTS screen according to the front passenger side seat belt condition B
      ON or OFF is not displayed normally on the GTS screen according to the front passenger seat condition (occupied or unoccupied) C

    B

    INSPECT FRONT SEAT INNER BELT ASSEMBLY RH Click here

    C

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

    A

  13. CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY, BODY GROUND)


    1. Disconnect the F76 multi-media module receiver assembly connector.

    2. Disconnect the E120 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F76-38 (PBEW) - E120-11 (WRNP) Always Below 1 Ω
      F76-38 (PBEW) or E120-11 (WRNP) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  14. CHECK COMBINATION METER ASSEMBLY


    1. B0018B1E02
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Combination Meter Assembly)

      Disconnect the E120 combination meter assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      E120-11 (WRNP) - Body ground Engine switch on (IG) 11 to 14 V

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPLACE MULTI-MEDIA MODULE RECEIVER ASSEMBLY Click here

  15. INSPECT FRONT SEAT INNER BELT ASSEMBLY RH


    1. Remove the front seat inner belt assembly RH Click here.

    2. Inspect the front seat inner belt assembly RH Click here.

      Result
      Result Proceed to
      OK A
      NG B

    B

    REPLACE FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side) Click here

    A

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


    1. Disconnect the c22 front seat inner belt assembly RH connector.

    2. Disconnect the E120 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      c22-3 (+) - E120-9 (PBKL) Always Below 1 Ω
      c22-3 (+) or E120-9 (PBKL) - Body ground Always 10 kΩ or higher
      c22-4 (E) - Body ground Always Below 1 Ω

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

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


    1. B001AAFE02

      Remove the front separate type seat cushion pad RH Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      1 - 3 Front passenger seat occupied Below 100 Ω
      1 - 3 Front passenger seat not occupied 10 kΩ or higher
      Result
      Result Proceed to
      OK A
      NG B

    B

    REPLACE FRONT SEPARATE TYPE SEAT CUSHION PAD Click here

    A

  18. INSPECT FRONT SEAT INNER BELT ASSEMBLY RH


    1. Remove the front seat inner belt assembly RH Click here.

    2. Inspect the front seat inner belt assembly RH Click here.

      Result
      Result Proceed to
      OK A
      NG B

    B

    REPLACE FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side) Click here

    A

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


    1. Disconnect the c22*1 or c53*2 front seat inner belt assembly RH connector.


      • *1: w/o Climate Control System

      • *2: w/ Climate Control System

    2. Disconnect the E120 combination meter assembly connector.

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

      Standard Resistance
      w/ Climate Control System
      Tester Connection Condition Specified Condition
      c53-1 (+) - E120-13 (PDOS) Always Below 1 Ω
      c53-1 (+) or E120-13 (PDOS) - Body ground Always 10 kΩ or higher
      c53-2 (E) - Body ground Always Below 1 Ω
      w/o Climate Control System
      Tester Connection Condition Specified Condition
      c22-1 (+) - E120-13 (PDOS) Always Below 1 Ω
      c22-1 (+) or E120-13 (PDOS) - Body ground Always 10 kΩ or higher
      c22-2 (E) - Body ground Always Below 1 Ω

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR