GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Operate each power window UP and DOWN from the LH power window master switch.

Each power window operates quietly and smoothly, with no sticking or mechanical noises.

LH Window Inoperative ; All Others Operate Normally.

Power Windows Inoperative - All.

2

Operate each power window UP and DOWN only from the individual side door window switches.

Each power window operates quietly and smoothly, with no sticking or mechanical noises.

Each power window is inoperative from its own side door window switch.

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.