LIGHTING SYSTEM Overhead Console Illumination Light Circuit

DESCRIPTION

The main body ECU controls the center console spot light.

WIRING DIAGRAM

A01XHA8E03
*a from DOME Relay
*b Map Light Assembly (Center Console Spot Light)
*c Main Body ECU (Multiplex Network Body ECU)

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 INTELLIGENT TESTER (CENTER CONSOLE SPOT LIGHT)


    1. Using the intelligent tester, perform the Active Test Click here.

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Cent Consol Spot LGT Center console spot light ON/OFF -
      OK
      Center console spot light comes on.

    OK

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

    NG

  2. INSPECT MAP LIGHT ASSEMBLY


    1. B001D7OE78

      Remove the map light Click here.

    2. Connect a positive (+) lead from the battery to terminal 21 (B1) and a negative (-) lead to terminal 4 (ILLB).

    3. Check that the center console spot light comes on.

      OK
      Center console spot light comes on.

    NG

    REPLACE MAP LIGHT ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (BATTERY - MAP LIGHT ASSEMBLY)


    1. A01XD7QE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Map Light Assembly)

      Disconnect the W7 map light connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      W7-21 (B1) - Body ground Battery saving control (interior light auto cut function) not operating 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - MAIN BODY ECU)


    1. Disconnect the W7 map light connector.

    2. Disconnect the G65 main body ECU connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      W7-4 (ILLB) - G65-5 (CSPT) Always Below 1 Ω
      W7-4 (ILLB) - Body ground Always 10 kΩ or higher

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR