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Home >> Toyota >> 2004 >> Matrix Base, FWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 437 (Body Control Systems - Diagnostics) >> Circuit Inspection >> Door Key Lock And Unlock Switch Circuit >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2002 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check the door key lock and unlock switch  . See DOOR KEY LOCK AND UNLOCK SWITCH CIRCUIT .
    1. NG: Replace the door key lock and unlock switch. 
    2. NG: Go to next step. 
  2. Check wire harness and connector between door key lock and unlock switch and body ECU  . See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE .
    1. NG: Repair or replace wire harness or connector. 
    2. OK: Go to next step. 

    Proceed to next circuit inspection shown on problem symptoms table  . See PROBLEM SYMPTOMS TABLE .