LIGHTING SYSTEM Front Fog Light Circuit

DESCRIPTION

The main body ECU receives headlight dimmer switch information signals and illuminates the front fog lights.

WIRING DIAGRAM

A0097RLE02

INSPECTION PROCEDURE

Note

Inspect the fuses and bulbs 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. Using the intelligent tester, perform the Active Test Click here.

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Front Fog Light Relay Front fog light relay ON/OFF The headlight dimmer switch is in the tail position.
      OK
      Front fog light relay operates (front fog lights come on).

    NG

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

    OK

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

  2. CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


    1. Remove the driver side junction block with its connectors still connected Click here.

    2. A009BOBE02
      Text in Illustration
      *a

      Component with harness connected

      (Driver Side Junction Block Assembly)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      2F-9 - Body ground Headlight dimmer switch in tail and front fog light switch on 11 to 14 V

    NG

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

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR (DRIVER SIDE JUNCTION BLOCK ASSEMBLY - FOG LIGHT ASSEMBLY)