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

A0156UTE01
A0159U0E01

INSPECTION PROCEDURE

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER


    1. Operate the intelligent tester 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.

    NG

    INSPECT FUSE (DOME2) Click here

    OK

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

  2. INSPECT FUSE (DOME2)


    1. Remove the DOME2 fuse from the engine room junction block.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      DOME2 fuse Always Below 1 Ω

    NG

    REPLACE FUSE

    OK

  3. 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

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


    1. Disconnect the 2D ECU connector.

    2. Disconnect the R13 light connector.

      A0158HUE01

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2D-51 (ILE) - R13-2 (CTY) Always Below 1 Ω
      R13-1 (B) - Body ground
      R13-3 (E) - Body ground
      2D-51 (ILE) - Body ground Always 10 kΩ or higher

    4. Disconnect the R15 light connector.

      A0158HUE02

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2D-51 (ILE) - R15-2 (DL) Always Below 1 Ω
      R15-1 (DB) - Body ground
      R15-3 (L) - Body ground
      2D-51 (ILE) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

    REPLACE MAIN BODY ECU

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


    1. A015A6YE03

      Disconnect the 2D 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

  6. INSPECT MAP LIGHT


    1. A015A6YE01

      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

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


    1. Disconnect the R7 map light connector.

    2. A015D3WE04

      Disconnect the R6 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) - R6-1 (DB) Always Below 1 Ω
      R7-5 (RRVT) - R6-3 (DL)
      R6-2 (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

  8. CHECK VEHICLE TYPE


    1. Check the vehicle type.

      Result
      Result Proceed to
      w/ Sliding Roof A
      w/o Sliding Roof B

    B

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

    A

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


    1. Disconnect the R7 map light connector.

    2. A015CPDE02

      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. A0156J1E02

      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 (E)
        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

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

    REPLACE MAIN BODY ECU

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


    1. Disconnect the R7 map light connector.

    2. A015D3WE06

      Disconnect the R12 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) - R12-1 (B) Always Below 1 Ω
      R7-6 (RILL) - R12-3 (CTY)
      R12-2 (E) - R7-1 (RGND)
      R7-32 (ILLB) - Body ground Always 10 kΩ or higher
      R7-6 (RILL) - Body ground

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

    REPLACE MAIN BODY ECU