LIGHTING SYSTEM Rear Fog Light Circuit

DESCRIPTION

The main body ECU controls the FOG RR relay.

WIRING DIAGRAM

B0045B6E01

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


    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
      Rear Fog Light Relay Rear fog light relay OFF or ON Light Control switch is in TAIL or HEAD position
      OK
      FOG RR relay operates. (Rear fog lights 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


    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
      Rear Fog Light Relay Rear fog light relay OFF or ON Light Control switch is in TAIL or HEAD position
      OK
      FOG RR relay operates. (Rear fog lights illuminate.)

    OK

    END (MAIN BODY ECU DEFECTIVE)

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY