LIGHTING SYSTEM Front Fog Light Circuit

DESCRIPTION

The main body ECU controls the FR FOG relay.

WIRING DIAGRAM

A01VKFKE03

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 (FRONT FOG LIGHT RELAY)


    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. According to the display on the intelligent tester, perform the Active Test.

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Front Fog Light Relay Front fog light relay OFF or ON Light Control switch is in TAIL or HEAD position
      OK
      FOG FR relay operates. (Front fog light illuminate.)

    OK

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

    NG

  2. REPLACE MAIN BODY ECU


    1. Temporarily replace the main body ECU with a new functioning one Click here.


    NEXT

  3. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (FRONT FOG LIGHT RELAY)


    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. According to the display on the intelligent tester, perform the Active Test.

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Front Fog Light Relay Front fog light relay OFF or ON Light Control switch is in TAIL or HEAD position
      OK
      FOG FR relay operates. (Front fog lights illuminate.)

    OK

    END (MAIN BODY ECU DEFECTIVE)

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY