GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the power windows system check?

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Go to Step 2

Go to Power Windows System Check

2

  1. Turn the ignition switch to the RUN position.
  2. Connect a test lamp between CKT 164 (DK BLU) and CKT 165 (BRN) at the left front door lock and side window switch connector C2.
  3. Operate the left front window switch between the UP and DOWN positions.

Does the test lamp light with the switch in both directions?

--

Go to Step 3

Go to Step 4

3

  1. Connect a test lamp between CKT 164 (DK GRN) and CKT 165 (BLU) at the left front side window regulator motor.
  2. Observe the test lamp while operating the left front window switch between the UP and DOWN positions.

Does the test lamp light with the switch in both directions?

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Go to Step 5

Go to Step 6

4

  1. Inspect the left front door lock and side window switch connector C2 for poor connections.
  2. Replace the left front door lock and side window switch.

Is the repair complete?

--

Go to Power Windows System Check

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5

  1. Inspect the left front side window regulator motor connector for poor connections.
  2. Replace the left front side window regulator motor.

Is the repair complete?

--

Go to Power Windows System Check

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6

Repair an open between the left front door lock and side window switch connector C2 and the left front side window regulator motor connector in CKT 164 (DK BLU) or CKT 165 (BRN).

Is the repair complete?

--

Go to Power Windows System Check

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