LIGHTING SYSTEM Exterior Illumination Circuit

DESCRIPTION

Main body ECU (multiplex network body ECU) controls the outside handle lights.

WIRING DIAGRAM

Figure 1. for LHD:

B004B4FE05

Figure 2. for RHD:

B004B4FE06

CAUTION / NOTICE / HINT

Note

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
      Exterior Light Outside handle lights OFF or ON -

      Body Electrical > Main Body > Active Test
      Tester Display
      Exterior Light
      OK
      Outside handle lights illuminate.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    A

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

    C

    INSPECT DOOR OUTSIDE HANDLE SUB-ASSEMBLY RH Click here

    B

  2. INSPECT DOOR OUTSIDE HANDLE SUB-ASSEMBLY LH


    1. Remove the door outside handle sub-assembly LH.

      Click here

    2. Inspect the door outside handle sub-assembly LH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE DOOR OUTSIDE HANDLE SUB-ASSEMBLY LH Click here

    OK

  3. INSPECT DOOR OUTSIDE HANDLE SUB-ASSEMBLY RH


    1. Remove the door outside handle sub-assembly RH.

      Click here

    2. Inspect the door outside handle sub-assembly RH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE DOOR OUTSIDE HANDLE SUB-ASSEMBLY RH Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] - DOOR OUTSIDE HANDLE SUB-ASSEMBLY LH)


    1. Disconnect the P9 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the W3 door outside handle sub-assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P9-2 (MILE) - W3-2 (OLP) Always Below 1 Ω
      P9-2 (MILE) or W3-2 (OLP) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (DOOR OUTSIDE HANDLE SUB-ASSEMBLY RH - DOOR OUTSIDE HANDLE SUB-ASSEMBLY LH AND BODY GROUND)


    1. Disconnect the V3 door outside handle sub-assembly RH connector.

    2. Disconnect the W3 door outside handle sub-assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      V3-2 (OLP) - W3-1 (GND) Always Below 1 Ω
      V3-1 (GND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. INSPECT DOOR OUTSIDE HANDLE SUB-ASSEMBLY RH


    1. Remove the door outside handle sub-assembly RH.

      Click here

    2. Inspect the door outside handle sub-assembly RH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE DOOR OUTSIDE HANDLE SUB-ASSEMBLY RH Click here

    OK

  7. INSPECT DOOR OUTSIDE HANDLE SUB-ASSEMBLY LH


    1. Remove the door outside handle sub-assembly LH.

      Click here

    2. Inspect the door outside handle sub-assembly LH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE DOOR OUTSIDE HANDLE SUB-ASSEMBLY LH Click here

    OK

  8. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] - DOOR OUTSIDE HANDLE SUB-ASSEMBLY RH)


    1. Disconnect the P9 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the V3 door outside handle sub-assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      P9-2 (MILE) - V3-2 (OLP) Always Below 1 Ω
      P9-2 (MILE) or V3-2 (OLP) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. CHECK HARNESS AND CONNECTOR (DOOR OUTSIDE HANDLE SUB-ASSEMBLY LH - DOOR OUTSIDE HANDLE SUB-ASSEMBLY RH AND BODY GROUND)


    1. Disconnect the W3 door outside handle sub-assembly LH connector.

    2. Disconnect the V3 door outside handle sub-assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      W3-2 (OLP) - V3-1 (GND) Always Below 1 Ω
      W3-1 (GND) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR