LIGHTING SYSTEM Interior Light Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) controls the front interior lights and rear interior light.

WIRING DIAGRAM

A004Z0LE04

PROCEDURE


  1. PERFORM ACTIVE TEST USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

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

    5. Check that the lights operate.

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Illuminated Entry System Turns on the lights that are controlled by the illuminated entry system*1 ON/OFF Map light switch LH and RH off (not pushed), interior light door switch DOOR position and all doors closed

      • *1: Refer to System Description for the lights that are controlled by the illuminated entry system.

      OK
      All lights that are controlled by the illuminated entry system come on.

    OK

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

    NG

  2. INSPECT MAP LIGHT ASSEMBLY


    1. Remove the map light assembly Click here.

    2. Inspect the map light assembly Click here.


    NG

    REPLACE MAP LIGHT ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the 2B instrument panel junction block assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      T6-1 (CTY) - 2B-27 Always Below 1 Ω
      T6-1 (CTY) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly Click here.

    2. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

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

      A004VDOE02
      Text in Illustration
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      2B-27 - A-1 (ILE) Always Below 1 Ω

    OK

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

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here