LIGHTING SYSTEM Front Fog Light Circuit

DTC Code DTC Name
Front Fog Light Circuit

DESCRIPTION

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

WIRING DIAGRAM

E199765E02

CAUTION / NOTICE / HINT

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 (HIGH BEAM HEADLIGHT)

    1. Using the intelligent tester, perform the Active Test.

      Click here

      Body Electrical > Main Body > Active Test

      Tester Display

      Measurement Item

      Control Range

      Diagnostic Note

      Rear 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 comes on).

      Result

      Result

      OK

      NG
    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    Click hereClick here

    NG

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

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

      Click hereClick here

    2. E202228C02

      *a

      Component with harness connected

      (Driver Side Junction Block Assembly)

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

    Result

    Result

    OK

    NG
    OK

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

    NG

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

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