GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Close all of the windows.
  2. Turn the ignition switch to the RUN position.
  3. Momentarily press the DOWN switch for left front window and lower the window to the first detente position.

The left front window opens a short distance.

Power Window Inoperative - Left Side Front

2

Momentarily press the left front window DOWN switch and then release the switch.

The left front window opens fully (express feature).

Power Window Inoperative - Left Side Front

3

Press the left front window UP switch.

The left front window moves up as long as the switch is held (no express feature).

Power Window Inoperative - Left Side Front

4

  1. Repeat Step 2.
  2. Press the left front window UP switch while the window is moving downward.

The left front window moves downward in the express mode and stops when the up switch is pressed.

Power Window Inoperative - Left Side Front

5

Operate all of the other windows from the console window switch.

Each window operates properly.

6

Operate each window from its individual window switch.

Each window operates properly.

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