GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Moveable Window Schematics

Connector End View Reference: Window Systems Connector End Views

1

Did you review the Power Windows Description and Operation?

Go to Step 2

Go to Symptoms - Fixed and Moveable Windows

2

Verify that the power windows lockout function is inoperative.

Does the power windows lockout function operate normally?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

  1. Turn OFF the ignition.
  2. Disconnect the driver window switch.
  3. Turn ON the ignition, with the engine OFF.
  4. Probe the power window master switch lockout control circuit of the driver window switch harness connector with a test lamp that is connected to a good ground.

Does the test lamp illuminate?

Go to Step 4

Go to Step 5

4

Repair the short to voltage in the power window master switch lockout control circuit. Refer to Wiring Repairs .

Did you find and correct the condition?

Go to Step 7

Go to Step 5

5

Inspect for poor connections at the harness connector of the driver window switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs .

Did you find and correct the condition?

Go to Step 7

Go to Step 6

6

Replace the driver window switch. Refer to Entertainment/Communication Component Views .

Did you complete the replacement?

Go to Step 7

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7

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2