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. Access the left door lock and side window switch.
  2. Turn the ignition switch to the RUN position.
  3. Connect a J 39200 digital multimeter (DMM) to CKT 170 (LT GRN), terminal H at the left door lock and window switch connector C2 and CKT 171 (PPL), terminal H at the left door lock and window switch connector C1.
  4. Operate the right rear window at the left door lock and side window switch in the UP/DOWN position.
  5. Test for voltage.

Is battery voltage present?

Battery Voltage

Go to Step 3

Go to Step 5

3

Inspect for a poor connection at the left door lock and side window switch.

Are the connections OK?

--

Go to Step 5

Go to Step 4

4

Repair the connections as necessary.

Is the repair complete?

--

Go to Power Windows System Check

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5

Replace the left door lock and side window switch.

Is the repair complete?

--

Go to Power Windows System Check

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