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Home >> Toyota >> 2004 >> Matrix Base, FWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 390 (Passenger 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 Sequoia. 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  .
    1. OK  : proceed to next circuit inspection shown on problem symptoms table. See PROBLEM SYMPTOMS .
    2. NG  : Go to step  2.
  2. Check the door key lock and unlock switch. See  INSPECT PASSENGER'S DOOR UNLOCK DETECTION SWITCH  . 
    1. NG  : Replace the door lock motor.
    2. OK  : Go to step  3.
  3. Check wire harness and connector between door key lock and unlock switch and passenger 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 .
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