LIGHTING SYSTEM(except 5L-E) Overhead Console Illumination Light Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) controls the operation of the map light assembly (shift lever illumination).

WIRING DIAGRAM

B001GC8E02
*a from DOME Relay
*b Map Light Assembly (Shift Lever Illumination)
*c Main Body ECU (Multiplex Network Body ECU)

CAUTION / NOTICE / HINT

Note

Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS


    1. Perform the Active Test according to the display on the GTS.

      Click here

      Main Body
      Tester Display Measurement Item Control Range Diagnostic Note
      Cent Consol Spot LGT Map light assembly (shift lever illumination) OFF or ON -
      OK
      Map light assembly (shift lever illumination) turn on.
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

  2. INSPECT MAP LIGHT ASSEMBLY


    1. B001D7ON17

      Remove the map light assembly.

      Click here

    2. Apply battery voltage to the connector and check the light illumination condition.

      OK
      Battery Connection Specified Condition

      Positive (+) → 21 (+B1)

      Negative (-) → 4 (ILLB)

      		 Map light assembly (shift lever illumination) illuminates
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE MAP LIGHT ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU])


    1. Disconnect the W7 map light assembly (shift lever illumination) connector.

    2. Disconnect the G216 main body ECU (multiplex network 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) - G216-24 (CSPT) Always Below 1 Ω
      W7-4 (ILLB) or G216-24 (CSPT) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR