LIGHTING SYSTEM Overhead Console Illumination Light Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) controls the center console spot light.

WIRING DIAGRAM

A003YLBE02

INSPECTION PROCEDURE

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Main Body / Active Test.

    5. Check that the center console spot lights come on.

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Center Console Spot LGT Center console spot lights (red, blue) ON/OFF Power switch off
      OK
      Center console spot lights come on.

    NG

    INSPECT MAP LIGHT ASSEMBLY Click here

    OK

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

  2. INSPECT MAP LIGHT ASSEMBLY


    1. A003X0YE03
      Text in Illustration
      *a

      Component without harness connected

      (Map Light Assembly)

      Remove the map light assembly Click here.

    2. Connect a positive (+) lead from the auxiliary battery to terminal 21 (+B1) and a negative (-) lead to terminal 5 (ILLB).

    3. Check that the center console spot light (red) comes on.

    4. Connect a positive (+) lead from the auxiliary battery to terminal 21 (+B1) and a negative (-) lead to terminal 6 (ILLB).

    5. Check that the center console spot light (blue) comes on.

      OK
      Each center console spot light comes on.

    NG

    REPLACE MAP LIGHT ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - MAIN BODY ECU AND AUXILIARY BATTERY)


    1. Disconnect the T6 map light assembly connector.

    2. Disconnect the H18 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
      T6-6 (ILLB) - H18-2 (CSPT) Always Below 1 Ω
      T6-6 (ILLB) - Body ground Always 10 kΩ or higher
      T6-5 (ILLB) - H18-6 (OSPT) Always Below 1 Ω
      T6-5 (ILLB) - Body ground Always 10 kΩ or higher

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      T6-21 (+B1) - Body ground Power switch off 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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