FixVault

Power Window Control System

WARNING: This page is about a different car, the 2004 Lexus GS 430 and 2004 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
PROBLEM SYMPTOMS TABLE - POWER WINDOW CONTROL SYSTEM

Symptom Suspect Area
Power window does not operate.
  1. Power window switch circuit
  2. Power window motor circuit
  3. Passenger door ECU
Auto up (or down) function does not operate.
  1. Power window switch circuit
  2. Passenger door ECU
Jam protection function and auto up (or down) function does not operate.
  1. Jam protection limit switch circuit
  2. Jam protection pulse switch circuit
  3. Passenger door ECU