LIGHTING SYSTEM Interior Light Circuit

DESCRIPTION

The main body ECU controls the map light and spot light.

WIRING DIAGRAM

A000SIYE07

CAUTION / NOTICE / HINT

Note


  • Recognition code registration is necessary when replacing the main body ECU (multiplex network body ECU).

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

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS (MAP LIGHT, SPOT LIGHT)


    1. Using the GTS, perform the Active Test Click here.

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Illuminated Entry System Map light and spot light ON/OFF -
      OK
      Map light and spot light comes on.

    OK

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

    NG

  2. INSPECT MAP LIGHT


    1. Remove the map light Click here.

    2. Inspect the map light Click here.


    NG

    REPLACE MAP LIGHT ASSEMBLY Click here

    OK

  3. INSPECT SPOT LIGHT ASSEMBLY


    1. Remove the spot light assembly Click here.

    2. Inspect the spot light assembly Click here.


    NG

    REPLACE SPOT LIGHT ASSEMBLY LH Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (MAP LIGHT - SPOT LIGHT ASSEMBLY)


    1. Disconnect the Y9 map light connector.

    2. Disconnect the Y20 spot light assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Y9-26 (RIFL) - Y3-2 (B) Always Below 1 Ω
      Y9-26 (RIFL) - Body ground Always 10 kΩ or higher
      Y9-27 (RLSW) - Y3-3 (CTY) Always Below 1 Ω
      Y9-27 (RLSW) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  5. CHECK HARNESS AND CONNECTOR (MAP LIGHT - COWL SIDE JUNCTION BLOCK LH AND BATTERY)


    1. Disconnect the Y9 and Y11 map light connector.

    2. Disconnect the 5A cowl side junction block LH connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      Y9-19 (+B1) - Body ground Battery saving control not operating 11 to 14 V

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      Y9-14 (DOOR) - 5A-27 Always Below 1 Ω
      Y9-14 (DOOR) - Body ground Always 10 kΩ or higher
      Y11-22 (GND9) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT COWL SIDE JUNCTION BLOCK LH


    1. A000OVPE04

      Remove the cowl side junction block LH Click here.

    2. Remove the main body ECU from the cowl side junction block LH Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-1 (ILE) - 5A-27 Always Below 1 Ω

    OK

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

    NG

    REPLACE COWL SIDE JUNCTION BLOCK LH Click here