LIGHTING SYSTEM License Plate Light Circuit

DESCRIPTION

When the light switch TAIL signal is received from the main body ECU (multiplex network body ECU), the license plate light illuminates.

WIRING DIAGRAM

B001VQPE02

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (COWL SIDE JUNCTION BLOCK LH - BATTERY)


    1. B001ZJ5E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Cowl Side Junction Block LH)

      Disconnect the 2G cowl side junction block LH connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      2G-1 - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      for Double Swing Out Type A
      except Double Swing Out Type, w/ Tire Carrier B
      except Double Swing Out Type, w/o Tire Carrier C

    B

    CHECK HARNESS AND CONNECTOR (LICENSE PLATE LIGHT ASSEMBLY - COWL SIDE JUNCTION BLOCK LH AND BODY GROUND) Click here

    C

    CHECK HARNESS AND CONNECTOR (LICENSE PLATE LIGHT ASSEMBLY - COWL SIDE JUNCTION BLOCK LH AND BODY GROUND) Click here

    A

  3. CHECK HARNESS AND CONNECTOR (LICENSE PLATE LIGHT ASSEMBLY - COWL SIDE JUNCTION BLOCK LH AND BODY GROUND)


    1. Disconnect the 2K cowl side junction block LH connector.

    2. Disconnect the W2 light connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2K-3 - W2-1 Always Below 1 Ω
      W2-2- Body ground
      W2-1 - Body ground Always 10 kΩ or higher

    OK

    INSPECT COWL SIDE JUNCTION BLOCK LH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. CHECK HARNESS AND CONNECTOR (LICENSE PLATE LIGHT ASSEMBLY - COWL SIDE JUNCTION BLOCK LH AND BODY GROUND)


    1. Disconnect the 2K cowl side junction block LH connector.

    2. Disconnect the h2 light connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2K-3 - h2-1 Always Below 1 Ω
      h2-2 - Body ground
      h2-1 - Body ground Always 10 kΩ or higher

    OK

    INSPECT COWL SIDE JUNCTION BLOCK LH Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. CHECK HARNESS AND CONNECTOR (LICENSE PLATE LIGHT ASSEMBLY - COWL SIDE JUNCTION BLOCK LH AND BODY GROUND)


    1. Disconnect the 2K cowl side junction block LH connector.

    2. for LH:


      1. Disconnect the S3 light connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        2K-3 - S3-1 Always Below 1 Ω
        S3-2 - Body ground
        S3-1 - Body ground Always 10 kΩ or higher

    3. for RH:


      1. Disconnect the S2 light connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        2K-3 - S2-1 Always Below 1 Ω
        S2-2 - Body ground
        S2-1 - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT COWL SIDE JUNCTION BLOCK LH


    1. for LHD:


      1. Remove the cowl side junction block LH Click here.

      2. Remove the main body ECU (multiplex network body ECU) from the cowl side junction block LH Click here.

    2. for RHD:


      1. Remove the cowl side junction block LH Click here.

      2. Remove the main body ECU (multiplex network body ECU) from the cowl side junction block LH Click here.

      B001ZU5E02

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      2K-3 - Battery negative (-) terminal Battery voltage applied between terminals 2G-1 and A-14 (TRLY) 11 to 14 V
      Battery voltage not applied between terminals 2G-1 and A-14 (TRLY) Below 1 V
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG (for LHD) C
      NG (for RHD) D

    A

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

    B

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

    C

    REPLACE COWL SIDE JUNCTION BLOCK LH Click here

    D

    REPLACE COWL SIDE JUNCTION BLOCK LH Click here