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Home >> Lexus >> 2003 >> SC 430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 367 (Sliding Roof System - Diagnosis) >> Circuit Inspection >> Sliding Roof Control Switch Circuit >> Inspection Procedure

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.

HINT:

If there is not the hand-held tester, begin with STEP 2.

  1. Check sliding roof control switch operation. 

    PREPARATION: 

    Connect the hand-held tester to the DLC3.

    CHECK: 

    1. Enter DATA LIST function of hand-held tester.
    2. Check that switch status (ON/OFF) changes on the screen of hand-held tester as the sliding roof control switch of the vehicle is turned.

    OK: 

    1. The switch status is normal. 
    1. OK : Replace sliding roof gear assembly with ECU (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    2. NG : Go to next step 
  2. Check sliding roof control switch (See  INSPECTION  ). 
    1. NG : Replace sliding roof switch. 
    2. OK : GO TO NEXT STEP 
  3. Check wire harness and connectors between sliding roof gear assembly with ECU and overhead J/B assembly (See  HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE  ). 
    1. NG : Repair and replace wire harness or connector. 
    2. OK : Proceed to next circuit inspection shown on problem symptom table (See  PROBLEM SYMPTOMS TABLE  ). 
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