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Home >> Lexus >> 2003 >> SC 430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 366 (Rain Sensor System - Diagnosis) >> Circuit Inspection >> Front Wiper Switch Circuit >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2003 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check wire harness between combination switch and Wiper Control ECU (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    1. NG : Repair or replace wire harness. 
    2. OK : Go to next step 
  2. Check wire harness between combination switch and body ground (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    1. NG : Repair or replace wire harness. 
    2. OK : Proceed to next circuit inspection shown on problem symptom table. (See  PROBLEM SYMPTOMS TABLE  ) 
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