LIGHTING SYSTEM Room Light Control does not Operate

WIRING DIAGRAM

A01GIIIE02

INSPECTION PROCEDURE

Note


  • First perform the communication function inspections in HOW TO PROCEED WITH TROUBLESHOOTING to confirm that there are no LIN communication malfunctions before troubleshooting this symptom.

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

PROCEDURE


  1. CHECK CONDITION


    1. Check the malfunction conditions.

      Result
      Result Proceed to
      All conditions below A
      Engine switch on (ACC) or (IG) → Engine switch off B
      All doors open → a door opened C
      All doors locked → a door unlocked D

    B

    REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

    C

    GO TO PROBLEM SYMPTOMS TABLE (COURTESY LIGHT) Click here

    D

    GO TO PROBLEM SYMPTOMS TABLE (DOOR UNLOCK) Click here

    A

  2. CONFIRM LIGHT POSITION


    1. Check the malfunctioning dome light.

      Result
      Result Proceed to
      Front dome light and rear dome light A
      Front dome light B
      Rear dome light C

    B

    REPLACE MAP LIGHT ASSEMBLY Click here

    C

    CHECK MAP LIGHT ASSEMBLY (ILLB VOLTAGE) Click here

    A

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

    A01GJ8NE02

    1. Disconnect the X4 and X6 map light connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X4-16 (GND9) - Body ground Always Below 1 Ω
      X6-20 (GND4) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (BATTERY - MAP LIGHT)

    A01GKGBE06

    1. Disconnect the X4 map light connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      X4-27 (DOME) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAP LIGHT ASSEMBLY Click here

  5. CHECK MAP LIGHT ASSEMBLY (ILLB VOLTAGE)

    A01GJ11E03

    1. Remove the map light with its connector still connected.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      X4-11 (ILLB) - X6-20 (GND4) Always 11 to 14 V

    NG

    REPLACE MAP LIGHT ASSEMBLY Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (MAP LIGHT - SPOT LIGHT OR CONSOLE BOX LIGHT)

    A01GMR5E12

    1. Disconnect the X4 and X6 map light connectors.

    2. Disconnect the X24 spot light*1 or console box light assembly*2 connector.


      • *1: w/o Console Box

      • *2: w/ Console Box

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      X4-11 (ILLB) - X24-12 (DMB) Always Below 1 Ω
      X6-18 (RILL) - X24-13 (DML) Always Below 1 Ω
      X4-11 (ILLB) - Body ground Always 10 kΩ or higher
      X6-18 (RILL) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK (w/o Console Box) A
      OK (w/ Console Box) B
      NG C

    B

    CHECK CONSOLE BOX LIGHT ASSEMBLY Click here

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    A

  7. CHECK SPOT LIGHT ASSEMBLY


    1. Temporarily replace the spot light with a new or normally functioning one Click here.

    2. Check the spot light operation.

      OK
      Spot light operation is normal.

    NG

    REPLACE MAP LIGHT ASSEMBLY Click here

    OK

    END (SPOT LIGHT WAS DEFECTIVE)

  8. CHECK CONSOLE BOX LIGHT ASSEMBLY


    1. Temporarily replace the console box light assembly with a new or normally functioning one Click here.

    2. Check the console box light assembly operation.

      OK
      console box light assembly operation is normal.

    NG

    REPLACE MAP LIGHT ASSEMBLY Click here

    OK

    END (CONSOLE BOX LIGHT WAS DEFECTIVE)