LIGHTING SYSTEM Door Illumination Circuit

DESCRIPTION

The rear door illumination is controlled by the main body ECU.

WIRING DIAGRAM

B001W6PE03

CAUTION / NOTICE / HINT

Note


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

  • If the main body ECU (multiplex network body ECU) is replaced, refer to the Service Bulletin.

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS (INTERIOR ILLUMINATION LIGHT1)


    1. Operate the GTS according to the steps on the display and select "Active Test".

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Interior Illumination Light1 door illumination light* OFF or ON -

      *: 15 seconds after turning the engine switch off, check the operation once the rear door illumination turns off.

      OK
      Rear door illumination illuminates.
      Result
      Result Proceed
      OK A
      NG (Front Door LH Side) B
      NG (Front Door RH Side) C
      NG (Rear Door LH Side) D
      NG (Rear Door RH Side) E

    A

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

    C

    CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - FRONT DOOR TRIM BOARD SUB-ASSEMBLY RH) Click here

    D

    CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR DOOR TRIM BOARD SUB-ASSEMBLY LH) Click here

    E

    CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR DOOR TRIM BOARD SUB-ASSEMBLY RH) Click here

    B

  2. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - FRONT DOOR TRIM BOARD SUB-ASSEMBLY LH)


    1. Remove the front door trim board sub-assembly LH.

    2. Remove the DOME fuse from cowl side junction block LH.

    3. Remove the main body ECU (multiplex network body ECU) from the junction block assembly LH.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E117-21 (LED1) - q2-2 (-) Always Below 1 Ω
      2 (DOME fuse holder) - q2-1 (+) Always Below 1 Ω
      E117-21 (LED1) - Body ground Always 10 kΩ or higher
      2 (DOME fuse holder) or q2-1 (+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT FRONT DOOR TRIM BOARD SUB-ASSEMBLY LH


    1. Temporarily replace the eront door trim board sub-assembly LH with a new or normally functioning one.

      OK
      The illumination illuminates normally.

    OK

    END (FRONT DOOR TRIM BOARD SUB-ASSEMBLY LH IS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

  4. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - FRONT DOOR TRIM BOARD SUB-ASSEMBLY RH)


    1. Remove the front door trim board sub-assembly RH.

    2. Remove the DOME fuse from cowl side junction block LH.

    3. Remove the main body ECU (multiplex network body ECU) from the junction block assembly LH.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E117-21 (LED1) - p2-2 (-) Always Below 1 Ω
      2 (DOME fuse holder) - p2-1 (+) Always Below 1 Ω
      E117-21 (LED1) - Body ground Always 10 kΩ or higher
      2 (DOME fuse holder) or p2-1 (+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. INSPECT FRONT DOOR TRIM BOARD SUB-ASSEMBLY RH


    1. Temporarily replace the front door trim board sub-assembly RH with a new or normally functioning one.

      OK
      The illumination illuminates normally.

    OK

    END (FRONT DOOR TRIM BOARD SUB-ASSEMBLY RH IS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

  6. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR DOOR TRIM BOARD SUB-ASSEMBLY LH)


    1. Remove the rear door trim board sub-assembly LH.

    2. Remove the DOME fuse from cowl side junction block LH.

    3. Remove the main body ECU (multiplex network body ECU) from the junction block assembly LH.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E117-21 (LED1) - J27-2 (-) Always Below 1 Ω
      2 (DOME fuse holder) - J27-1 (+) Always Below 1 Ω
      E117-21 (LED1) - Body ground Always 10 kΩ or higher
      2 (DOME fuse holder) or J27-1 (+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. INSPECT REAR DOOR TRIM BOARD SUB-ASSEMBLY LH


    1. Temporarily replace the rear door trim board sub-assembly LH with a new or normally functioning one.

      OK
      The illumination illuminates normally.

    OK

    END (REAR DOOR TRIM BOARD SUB-ASSEMBLY LH IS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

  8. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR DOOR TRIM BOARD SUB-ASSEMBLY RH)


    1. Remove the rear door trim board sub-assembly RH.

    2. Remove the DOME fuse from cowl side junction block LH.

    3. Remove the main body ECU (multiplex network body ECU) from the junction block assembly LH.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E117-21 (LED1) - J25-2 (-) Always Below 1 Ω
      2 (DOME fuse holder) - J25-1 (+) Always Below 1 Ω
      E117-21 (LED1) - Body ground Always 10 kΩ or higher
      2 (DOME fuse holder) or J25-1 (+) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. INSPECT REAR DOOR TRIM BOARD SUB-ASSEMBLY RH


    1. Temporarily replace the rear door trim board sub-assembly RH with a new or normally functioning one.

      OK
      The illumination illuminates normally.

    OK

    END (REAR DOOR TRIM BOARD SUB-ASSEMBLY RH IS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)