LIGHTING SYSTEM Buckle Illumination Circuit

DESCRIPTION

main body ECU (multiplex network body ECU) controls the rear seat belt buckle light

WIRING DIAGRAM

B006BH0E02

CAUTION / NOTICE / HINT

Note


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

  • Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS


    1. Perform the Active Test according to the display on the GTS.

      Click here


      Body Electrical > Main Body > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Rear Side Buckle Light Rear seat buckle illumination light OFF or ON -

      Body Electrical > Main Body > Active Test
      Tester Display
      Rear Side Buckle Light
      OK
      Rear seat belt buckle light turns on or off.
      Result
      Proceed to
      OK
      NG

    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

  2. CHECK HARNESS AND CONNECTOR (REAR SEAT INNER BELT - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU])


    1. Disconnect the L91 rear seat inner belt assembly LH connector.

    2. Disconnect the L92 rear seat inner with center belt assembly RH connector.

    3. Disconnect the G12 main body ECU (multiplex network body ECU) connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      L92-1 (B) - Body ground Always 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L92-2 (E) - G12-10 (BLIL) Always Below 1 Ω
      L92-2 (E) or G12-10 (BLIL) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR