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

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

When the passenger seat belt is not fastened with the ignition switch on (IG) and the passenger seat occupied, the passenger seat belt warning light display blinks. The occupant detection sensor detects if the passenger seat is occupied and sends signals to the combination meter assembly. After receiving the signals from the occupant detection sensor and inner belt, the combination meter assembly sends signals to the navigation receiver assembly*1 or hazard warning switch*2 to request the passenger seat belt warning light to blink or go off.

Tip:

  • *1: w/ Navigation System

  • *2: w/o Navigation System

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WIRING DIAGRAM

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INSPECTION PROCEDURE

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PROCEDURE


  1. Click here

    PERFORM ACTIVE TEST USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch on (IG).

    3. Read the DATA LIST according to the displays on the tester screen.

      Table 1. Combination Meter
      Tester Display Test Part Control Range Diagnostic Note
      Front Passenger Side Seat Belt Front passenger side seat belt warning light Front passenger side seat belt warning light is OFF / ON Confirm that the vehicle is stopped with engine idling

  2. Click here

    CHECK HARNESS AND CONNECTOR


    1. A017FYEE01

      Disconnect the E1 connector from the combination meter.

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      E1-11 (P/SB) - Body ground Passenger seat occupied and buckle switch is on Below 100 Ω

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    CHECK HARNESS AND CONNECTOR (BATTERY - NAVIGATION RECEIVER OR HAZARD WARNING LIGHT)


    1. A017C4QE08

      Disconnect E13 connector from the navigation receiver.*1

    2. Disconnect E13 connector from the hazard warning switch.*2

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

      Standard voltage
      Tester Connection Switch Condition Specified Condition
      E13-1 (B) - Body ground Ignition switch on (IG) 11 to 14 V
      Tip:

      • *1: w/ Navigation System

      • *2: w/o Navigation System


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    CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER OR HAZARD WARNING LIGHT - BODY GROUND)


    1. A017C4QE07

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      E13-5 (E) - Body ground Always Below 1 Ω

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    CHECK HARNESS AND CONNECTOR


    1. A017B17E03

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      E1-31 (PBLT) - E13-3 (PBEW) Always Below 1 Ω
      E1-31 (PBLT) or E13-3 (PBEW) - Body ground Always 10 kΩ or higher

    2. Proceed to the next step based on the inspection result.

      Result
      Result Proceed to
      OK (w/Navigation system) A
      OK (w/o Navigation system) B
      NG C

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    CHECK HARNESS AND CONNECTOR (COMBINATION METER - FRONT SEAT INNER BELT)


    1. A017EJEE02

      Disconnect N17 connector from the front seat inner belt RH.*1

    2. Disconnect O35 connector from the front seat inner belt LH.*2

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition

      E1-11 (P/SB) - N17-1*1

      E1-11 (P/SB) - O35-1*2

      		 Always Below 1 Ω

      E1-11 (P/SB) or N17-1 - Body ground*1

      E1-11 (P/SB) or O35-1 - Body ground*2

      		 Always 10 kΩ or higher
      Tip:

      • *1: LHD

      • *2: RHD


  7. Click here

    CHECK HARNESS AND CONNECTOR (FRONT SEAT INNER BELT - BODY GROUND)


    1. A017G1QE02

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

      Standard resistance
      Tester Connection Switch Condition Specified Condition

      N17-4 - Body ground*1

      O35-4 - Body ground*2

      		 Always Below 1 Ω
      Tip:

      • *1: LHD

      • *2: RHD


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    INSPECT OCCUPANT DETECTION SENSOR


    1. A017DXZE03

      Disconnect A connector from the occupant detection sensor.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      A-1 - A-3 Passenger seat is occupied Below 100 Ω
      A-1 - A-3 Passenger seat is not occupied 1 MΩ or higher

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    REPLACE COMBINATION METERClick here

  10. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE FUSE

  11. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  12. Click here

    REPLACE NAVIGATION RECEIVERClick here

  13. Click here

    REPLACE HAZARD WARNING SWITCHClick here

  14. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  15. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER - FRONT SEAT INNER BELT)

  16. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR (FRONT SEAT INNER BELT - BODY GROUND)

  17. Click here

    REPLACE OCCUPANT DETECTION SENSOR

  18. Click here

    REPLACE FRONT SEAT INNER BELT (PASSENGER SIDE)Click here