SEAT BELT WARNING SYSTEM Rear Seat Belt Warning Light Malfunction

DESCRIPTION

The combination meter assembly detects whether either rear door is open or closed based on the condition of the left and right courtesy light switches. The combination meter assembly detects the rear seat belt state. The rear seat belt warning lights on the telltale light assembly illuminate or turn off in accordance with the rear door state, vehicle speed and rear seat belt state.

WIRING DIAGRAM

B003LFUE07

CAUTION / NOTICE / HINT

Note


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

  • When replacing the combination meter assembly, make sure to replace it with a new one.

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
      Rear Left Side Door Rear left side door CLOSE or OPEN

      CLOSE: Rear left side door closed

      OPEN: Rear left side door open

      		 -
      Rear Right Side Door Rear right side door CLOSE or OPEN

      CLOSE: Rear right side door closed

      OPEN: Rear right side door open

      		 -

      Body Electrical > Combination Meter > Data List
      Tester Display
      Rear Left Side Door
      Rear Right Side Door
      OK
      The GTS display changes correctly in response to the rear door condition.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO METER / GAUGE SYSTEM Click here

    OK

  2. 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
      2nd-Row Seatbelt Buckle (R) Rear RH seat belt buckle switch signal ON or OFF

      ON: Rear RH seat belt not fastened

      OFF: Rear RH seat belt fastened

      		 -
      2nd-Row Seatbelt Buckle (L) Rear LH seat belt buckle switch signal ON or OFF

      ON: Rear LH seat belt not fastened

      OFF: Rear LH seat belt fastened

      		 -
      2nd-Row Seatbelt Buckle (C) Rear center seat belt buckle switch signal ON or OFF

      ON: Rear center seat belt not fastened

      OFF: Rear center seat belt fastened

      		 -

      Body Electrical > Combination Meter > Data List
      Tester Display
      2nd-Row Seatbelt Buckle (R)
      2nd-Row Seatbelt Buckle (L)
      2nd-Row Seatbelt Buckle (C)
      OK
      The GTS display changes correctly in response to the rear door condition.
      Result
      Result Proceed to
      ON or OFF is displayed on the GTS screen according to the rear seat belt condition A
      ON or OFF is not displayed normally on the GTS screen according to the rear LH seat belt condition B
      ON or OFF is not displayed normally on the GTS screen according to the rear center seat belt condition B
      ON or OFF is not displayed normally on the GTS screen according to the rear RH seat belt condition C

    B

    INSPECT REAR CENTER SEAT LAP TYPE BELT ASSEMBLY LH Click here

    C

    INSPECT REAR NO. 1 SEAT INNER BELT ASSEMBLY RH Click here

    A

  3. CHECK HARNESS AND CONNECTOR (TELLTALE LIGHT ASSEMBLY - BATTERY)


    1. B003OEZC03
      *a

      Front view of wire harness connector

      (to Telltale Light Assembly)

      Disconnect the telltale light assembly connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      G27-10 (IG+) - Body ground Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT TELLTALE LIGHT ASSEMBLY


    1. Remove the telltale light assembly.

      Click here

    2. Inspect the telltale light assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE TELLTALE LIGHT ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (TELLTALE LIGHT ASSEMBLY - COMBINATION METER ASSEMBLY)


    1. Disconnect the G27 telltale light assembly connector.

    2. Disconnect the G9 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G27-1 (RLID) - G9-24 (RLMT) Always Below 1 Ω
      G27-2 (RCID) - G9-23 (RCMT) Always Below 1 Ω
      G27-3 (RRID) - G9-22 (RRMT) Always Below 1 Ω
      G27-1 (RLID) or G9-24 (RLMT) - Body ground Always 10 kΩ or higher
      G27-2 (RCID) or G9-23 (RCMT) - Body ground Always 10 kΩ or higher
      G27-3 (RRID) or G9-22 (RRMT) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. INSPECT REAR CENTER SEAT LAP TYPE BELT ASSEMBLY LH


    1. Remove the rear center seat lap type belt assembly LH.

      Click here

    2. Inspect the rear center seat lap type belt assembly LH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR CENTER SEAT LAP TYPE BELT ASSEMBLY LH Click here

    OK

  7. INSPECT REAR CENTER SEAT LAP TYPE BELT ASSEMBLY RH


    1. Remove the rear center seat lap type belt assembly RH.

      Click here

    2. Inspect the rear center seat lap type belt assembly RH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR SEAT LAP TYPE BELT ASSEMBLY CENTER LH Click here

    OK

  8. CHECK HARNESS AND CONNECTOR (REAR CENTER SEAT LAP TYPE ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND)


    1. Disconnect the N44 rear center seat lap type belt assembly LH connector.

    2. Disconnect the G9 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N44-1 (LBR+) - G9-5 (RLBT) Always Below 1 Ω
      N44-3 (CBR+) - G9-6 (RCSB) Always Below 1 Ω
      N44-1 (LBR+) or G9-5 (RLBT) - Body ground Always 10 kΩ or higher
      N44-3 (CBR+) or G9-6 (RCSB) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  9. INSPECT REAR NO. 1 SEAT INNER BELT ASSEMBLY RH


    1. Remove the rear No. 1 seat inner belt assembly RH.

      Click here

    2. Inspect the rear No. 1 seat inner belt assembly RH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR NO. 1 SEAT BELT ASSEMBLY INNER RH Click here

    OK

  10. CHECK HARNESS AND CONNECTOR (REAR NO. 1 SEAT INNER BELT ASSEMBLY RH - COMBINATION METER ASSEMBLY AND BODY GROUND)


    1. Disconnect the N43 rear No. 1 seat inner belt assembly RH connector.

    2. Disconnect the G9 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N43-1 (RBR+) - G9-7 (RRBT) Always Below 1 Ω
      N43-2 (RBR-) - Body ground Always Below 1 Ω
      N43-1 (RBR+) or G9-7 (RRBT) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR