LIGHTING SYSTEM Illumination Circuit

DESCRIPTION

When a door is opened while the DOOR switch of the map light assembly is on, the map light assembly receives a door open signal from the main body ECU and turns on the corresponding lights.

WIRING DIAGRAM

B001YHBE02
B001Z2WE03
B001VXME02

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS


    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
      Illuminated Entry System Illumination light OFF or ON -
      OK
      Light comes on.

    OK

    PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    NG

  2. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      w/o Map Light A
      w/ Map Light B

    B

    CHECK HARNESS AND CONNECTOR (MAP LIGHT - BODY GROUND) Click here

    A

  3. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - NO. 1 ROOM LIGHT AND NO. 3 ROOM LIGHT)


    1. Disconnect the 2J main body ECU connector.

    2. Disconnect the R22 No. 1 room light connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2J-30 (ILE) - R22-2 (CTY) Always Below 1 Ω
      R22-1 (B) - Body ground
      R22-3 (E) - Body ground
      2J-30 (ILE) - Body ground Always 10 kΩ or higher

    4. Disconnect the R24 No. 1 room light connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2J-30 (ILE) - R24-2 (DL) Always Below 1 Ω
      R24-1 (DB) - Body ground
      R24-3 (L) - Body ground
      2J-30 (ILE) - Body ground Always 10 kΩ or higher

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

  4. CHECK HARNESS AND CONNECTOR (MAP LIGHT - BODY GROUND)


    1. B001Y0JE03
      *1 Component with harness connected: (Map Light Assembly)

      Disconnect the 2J ECU connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      R7-16 (+B3) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

  5. INSPECT MAP LIGHT


    1. B001Y0JE01
      *1 Component with harness connected: (Map Light)

      Remove the map light Click here.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      R7-31 (+B1) - R7-5 (RRVT) Dome light switch off Below 1 V
      Dome light switch on 11 to 14 V
      R7-6 (RILL) - R7-32 (ILLB) Dome light switch off Below 1 V
      Dome light switch on 11 to 14 V

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      R7-9 (CTY) - Body ground "Door" switch on and door open Below 1 Ω
      "Door" switch off and door open 10 kΩ or higher
      "Door" switch on and door closed 10 kΩ or higher
      "Door" switch off and door closed 10 kΩ or higher
      R7-17 (GND9) - Body ground Always Below 1 Ω

    NG

    REPLACE MAP LIGHT Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (NO. 3 ROOM LIGHT - MAP LIGHT AND BODY GROUND)


    1. Disconnect the R7 map light connector.

    2. Disconnect the R23 light connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R7-31 (+B1) - R23-1 (DB) Always Below 1 Ω
      R7-5 (RRVT) - R23-3 (DL)
      R23-2 (L) - Body ground
      R7-31 (+B1) - Body ground Always 10 kΩ or higher
      R7-16 (RRVT) - Body ground

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

  7. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      w/ Spot light A
      w/o Spot light B

    B

    CHECK HARNESS AND CONNECTOR (NO. 1 ROOM LIGHT - MAP LIGHT AND BODY GROUND) Click here

    A

  8. CHECK HARNESS AND CONNECTOR (SPOT LIGHT - MAP LIGHT AND BODY GROUND)


    1. Disconnect the R7 map light connector.

    2. Disconnect the R4 light connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R7-32 (ILLB) - R4-1 (B) Always Below 1 Ω
      R7-6 (RILL) - R4-2 (CTY)
      R7-32 (ILLB) - Body ground Always 10 kΩ or higher
      R7-6 (RILL) - Body ground

    4. for LH:


      1. Disconnect the R8 light connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        R7-32 (ILLB) - R8-2 (BL) Always Below 1 Ω
        R7-1 (RGND) - R8-4 (EL)
        R7-32 (ILLB) - Body ground Always 10 kΩ or higher
        R7-1 (RGND) - Body ground

    5. for RH:


      1. Disconnect the R9 light connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        R7-32 (ILLB) - R9-2 (BR) Always Below 1 Ω
        R7-1 (RGND) - R9-4 (ER)
        R7-32 (ILLB) - Body ground Always 10 kΩ or higher
        R7-1 (RGND) - Body ground

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

  9. CHECK HARNESS AND CONNECTOR (NO. 1 ROOM LIGHT - MAP LIGHT AND BODY GROUND)


    1. Disconnect the R7 map light connector.

    2. Disconnect the R21 light connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      R7-32 (ILLB) - R21-1 (B) Always Below 1 Ω
      R7-6 (RILL) - R21-3 (CTY)
      R21-2 (E) - R7-1 (RGND)
      R7-32 (ILLB) - Body ground Always 10 kΩ or higher
      R7-6 (RILL) - Body ground

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR