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 perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2

Verify that the all power windows inoperative fault is present.

Do the power windows 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 accessory voltage circuit of the driver window switch with a test lamp that is connected to ground.

Does the test lamp illuminate?

Go to Step 4

Go to Step 5

4

Connect a test lamp between the accessory voltage circuit of the driver window switch and the ground circuit of the driver window switch.

Does the test lamp illuminate?

Go to Step 10

Go to Step 11

5

Repair a short to ground or an open in the accessory voltage circuit of driver window switch. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 13

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6

Using a test lamp connected to battery positive voltage, probe the window lockout switch circuit.

Does the test lamp illuminate?

Go to Step 7

Go to Step 8

7

Repair a short to ground in the window lockout switch circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 13

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8

Test the driver window motor control circuits for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 9

9

Test each of passenger window motor control circuits for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 13

Go to Step 10

10

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 13

Go to Step 12

11

Repair the open in the ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 13

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12

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

Did you complete the replacement?

Go to Step 13

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13

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2