GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Power Window Schematics

Connector End View Reference: Power Door Systems Connector End Views

1

Did you review the Power Windows Description and Operation?

Go to Step 2

Go to Symptoms - Doors

2

Verify that the inoperative power windows lockout function fault is present.

Does the power windows lockout function operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

  1. Disconnect the driver window switch.
  2. Turn ON the ignition, with the engine OFF.
  3. Probe the power window master switch lockout signal circuit of the driver window switch 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 signal circuit. Refer to Wiring Repairs in Wiring Systems.

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 Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 7

Go to Step 6

6

Replace the driver window switch. Refer to Front Door Switch Replacement .

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