GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Windows System Check?

--

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 1001 (DK GRN), terminal D at the left window lockout switch connector and ground.
  4. Test for voltage.

Is ignition voltage present?

IGN+

Go to Step 4

Go to Step 3

3

Locate and repair the open or the high resistance in CKT 1001 (DK GRN) between the left door lock and side window switch connector.

Is the repair complete?

--

Go to Power Windows System Check

--

4

  1. Turn the ignition switch to the RUN position.
  2. Place the lockout switch in the NORMAL (UNLOCKED) position.
  3. Connect a J 39200 DMM to CKT 1307 (DK BLU), terminal B at the left window lockout switch connector and ground.
  4. Test for voltage.

Is ignition voltage present?

IGN+

Go to Step 8

Go to Step 5

5

Inspect for a poor connection at the left window lockout switch.

Is the connection OK?

--

Go to Step 7

Go to Step 6

6

Repair the connection as necessary.

Is the repair complete?

--

Go to Power Windows System Check

--

7

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

Is the repair complete?

--

Go to Power Windows System Check

--

8

  1. Access the left rear side window switch.
  2. Turn the ignition switch to the RUN position.
  3. Place the lockout switch in the NORMAL (UNLOCKED) position.
  4. Connect a J 39200 DMM to ground and CKT 1001 (DK GRN), terminal D at the left rear window switch connector.
  5. Ensure that the connector remains connected.
  6. Test for voltage.

Is ignition voltage present?

IGN+

Go to Step 10

Go to Step 9

9

Locate and repair the open or the high resistance in CKT 1307 (DK BLU), terminal B at the window lockout switch and terminal B at the left rear window switch connector.

Is the repair complete?

--

Go to Power Windows System Check

--

10

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

Is the repair complete?

--

Go to Power Windows System Check

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