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Home >> Toyota >> 2004 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 448 (Driver Door Control System - 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 using DTC check  . See DOOR, DTC B1222/22: DOOR LOCK SWITCH CIRCUIT ON DRIVER DOOR .
    1. OK:  Proceed to next circuit inspection shown on problem symptoms table. See PROBLEM SYMPTOMS TABLE .
    2. NG:  Go to  2.
  2. Check the door key lock and unlock switch  . See STEP 3 - INSPECT PASSENGER'S DOOR KEY LOCK AND UNLOCK SWITCH CONTINUITY  under INSPECTION .
    1. NG:  Replace the door key lock and unlock switch.
    2. OK:  Go to  3.
  3. Check wire harness and connector between door key lock and unlock switch and driver door ECU. 
    1. NG:  Repair or replace wire harness or connector.
    2. OK  : Proceed to next circuit inspection shown on problem symptoms table. See PROBLEM SYMPTOMS TABLES .
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