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Home >> Toyota >> 2006 >> Tundra Base, 4.0 U, Standard >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Body Control Systems - Diagnostics >> Body Control System >> Circuit Inspection >> Light Control Switch Circuit >> Inspection Procedure

Inspection Procedure

HINT:

In case of using the hand-held tester, start the inspection from step  1 and in case of not using the hand-held tester, start from step  2.

  1. Check headlight control switch using hand-held tester. 

    PREPARATION: 

    Connect the hand-held tester to the DLC3.

    CHECK: 

    Check the headlight control switch using DATA LIST.

    OK: 

    Fig 1: Headlight Control Switch Position
    G02643923Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. OK: Proceed to next circuit inspection shown on  PROBLEM SYMPTOMS TABLE   . 
    2. NG: Go to next step 
  2. Check headlight control switch (See  INSPECTION  ). 
    1. NG: Replace headlight control switch. 
    2. OK: Go to next step 
  3. Check wire harness and connector between headlight control switch and body ECU (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    1. NG: Repair or replace wire harness and connector. 
    2. OK: Proceed to next circuit inspection shown on  PROBLEM SYMPTOMS TABLE   .