LIGHTING SYSTEM Overhead Console Illumination Light Circuit

DTC Code DTC Name
Overhead Console Illumination Light Circuit

DESCRIPTION

The main body ECU controls the center console spot light.

WIRING DIAGRAM

E199775E04

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

      Body Electrical > Main Body > Active Test

      Tester Display

      Measurement Item

      Control Range

      Diagnostic Note

      Cent Consol Spot LGT

      Center console spot light

      ON/OFF

      -

      OK

      Center console spot light comes on.

      Result

      Result

      OK

      NG
    OK

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

    Click here

    NG

  2. INSPECT MAP LIGHT ASSEMBLY

    1. E140936C03

      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:

      OK

      Center console spot light comes on.

      Result

      Result

      OK

      NG
    NG

    REPLACE MAP LIGHT ASSEMBLY

    Click here

    OK

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

    1. E140414C03

      *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

      Always

      11 to 14 V

      Result

      Result

      OK

      NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR

    1. Disconnect the W7 map light connector.

    2. Disconnect the G48 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) - G48-5 (CSPT)

      Always

      Below 1 Ω

      W7-4 (ILLB) - Body ground

      Always

      10 kΩ or higher

      Result

      Result

      OK

      NG
    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR