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Power Window Control System

WARNING: This page is about a different car, the 2003 Lexus GS 430 and 2003 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
POWER WINDOW CONTROL - PROBLEM SYMPTOM INDEX

Symptom Suspected Area Action
All Power Window Do Not Operate
  1. PWC Circuit
  2. Power Window Master Switch Circuit
  3. Body ECU No. 1
  1. (1)
  2. (2)
  3. -
 
Power Window Does Not Operate
  1. Power Window Switch Circuit
  2. Power Window Motor Circuit
  3. Driver Door ECU
  1. (2)
  2. (3)
  3. -
 
Auto Up or (Down) Function Does Not Operate
  1. Power Window Master Switch Circuit
  2. Driver Door ECU
  1. (2)
  2. -
Jam Protection Function & Auto Up or (Down) Function Does Not Operate
  1. Jam Protection Limit Switch Circuit
  2. Jam Protection Pulse Switch Circuit
  3. Driver Door ECU
  1. (4)
  2. (5)
  3. -
(1) See, PWS CIRCUIT in Body Control Systems article.

(2) See, POWER WINDOW MASTER SWITCH CIRCUIT .

(3) See, POWER WINDOW MOTOR CIRCUIT .

(4) See, JAM PROTECTION LIMIT SWITCH CIRCUIT .

(5) See, JAM PROTECTION PULSE SWITCH CIRCUIT .
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