GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the system operation and perform the necessary inspections?

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Go to Step 2

Go to Symptoms - Doors

2

  1. Turn the ignition to the RUN position.
  2. Attempt to operate the power window express down function.

Does the express down function operate normally?

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

Go to Step 3

3

  1. Disconnect the power window control module connector.
  2. Connect a test lamp between the power window control module connector terminal A and terminal C.
  3. Turn the ignition switch to RUN.

Does the test lamp illuminate?

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Go to Step 6

Go to Step 4

4

Test for and repair an open in circuit 164 between the power window control module terminal A and splice S263. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and repair an open?

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Go to Step 8

Go to Step 5

5

Repair the open in circuit 341 between the power window control module and splice S208. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

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Go to Step 8

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6

Test for and repair a poor connection at the power window control module. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a poor connection?

--

Go to Step 8

Go to Step 7

7

Replace the power window control module.

Did you complete the replacement?

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Go to Step 8

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8

Operate the system in order to verify the repair.

Did you correct the condition?

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System OK

Go to Step 3