LIGHTING SYSTEM Inside Handle Illumination Light Circuit

DESCRIPTION

The main body ECU (multiplex network ECU) controls the inside handle illumination lights.

WIRING DIAGRAM

A01EY3RE01

INSPECTION PROCEDURE

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the intelligent tester on.

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

    5. Check that the inside handle illumination lights come on.

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Inside Handle Illumination Inside handle illumination lights ON/OFF Ignition switch is turned off just before performing the Active Test.
      OK
      Inside handle illumination lights come on.

    NG

    CHECK HARNESS AND CONNECTOR (INSIDE HANDLE ILLUMINATION LIGHT ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) Click here

    OK

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

  2. CHECK HARNESS AND CONNECTOR (INSIDE HANDLE ILLUMINATION LIGHT ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the I12 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the K8 front door inside handle illumination light assembly LH connector.

    3. Disconnect the J8 front door inside handle illumination light assembly RH connector.

    4. Disconnect the M3 rear door inside handle illumination light assembly LH connector.

    5. Disconnect the L3 rear door inside handle illumination light assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I12-4 (OSPT) - K8-1 Always Below 1 Ω
      I12-4 (OSPT) - J8-1 Always Below 1 Ω
      I12-4 (OSPT) - M3-1 Always Below 1 Ω
      I12-4 (OSPT) - L3-1 Always Below 1 Ω
      I12-4 (OSPT) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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