GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn the ignition switch to ON.
  2. Depress the left front power window/door lock switch to the DOWN position.
  3. Lift the switch to the UP position.

The left front window operates.

Power Window Inoperative - Left Side Front

2

  1. Depress the right front power window/door lock switch to the DOWN position.
  2. Lift the switch to the UP position.

The right front window operates.

Power Window Inoperative - Right Side Front

3

  1. Depress the left rear remote window/door lock switch (located in the Center Console) to the DOWN position.
  2. Lift the switch to the UP position.

The left rear window operates.

Power Window Inoperative - Left Side Rear from Left Side Front Switch

4

  1. Depress the right rear remote window/door lock switch (located in the Center Console) to the DOWN position.
  2. Lift the switch to the UP position.

The right rear window operates.

Power Window Inoperative - Right Side Rear from Left Front Switch

5

  1. Depress the right front power window/door lock switch to the DOWN position.
  2. Lift the switch to the UP position.

The right front window operates.

Power Window Inoperative - Right Side Front from Right Side Front Switch

6

  1. Depress the left rear power window/door lock switch to the DOWN position.
  2. Lift the switch to the UP position.

The left rear window operates.

Power Window Inoperative - Left Side Rear

7

  1. Depress the right rear power window/door lock switch to the DOWN position.
  2. Lift the switch to the UP position.

The right rear window operates.

Power Window Inoperative - Right Side Rear

8

  1. Depress the window lock switch in the left front power window/door lock switch to the LOCK position.
  2. Attempt to move all of the windows with all of the window switches.

Only the left front window operates.

Power Window Lockout Function Inoperative

9

  1. Depress the left front window switch in the left front power window/door lock switch firmly to the DOWN position.
  2. Quickly release the switch.

The left front window moves down automatically to the fully open position.

Power Window Express Down Function Inoperative

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