GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Power Window Schematics

1

Did you review the Power Windows Description and Operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Doors

2

Verify that the inoperative power windows express down function fault is present.

Does the power windows express down function operate normally?

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

Go to Step 3

3

Replace the driver window switch. Refer to Door Lock and Side Window and Outside Rearview Mirror Remote Control Switch Replacement .

Is the repair complete?

Go to Step 4

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4

Operate the system in order to verify the repair.

Did you find and correct the condition?

System OK

Go to Step 2