LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2004 >> Matrix Base, FWD, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 390 (Passenger Door Control System - Diagnostics) >> Circuit Inspection >> Window Lock Switch Circuit >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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 window lock switch circuit using DTC check  . See HOW TO PROCEED WITH TROUBLESHOOTING .
    1. OK  Proceed to next circuit inspection shown on problem symptoms table. See PROBLEM SYMPTOMS TABLE or PROBLEM SYMPTOMS  .
    2. NG  : Go to step  2.
  2. Check wire harness and connector between passenger door ECU 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 .