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

Are the Power Locks working properly?

--

Go to Step 4

Go to Step 3

3

Repair the open in the WHT/BLK wire between SP551 to G200 or replace the SP551. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Windows System Check

--

4

  1. Turn the ignition switch to the RUN position.
  2. Disconnect the LH window/door lock switch connector.
  3. Using a test lamp, probe the connector cavity 10 to ground.

Does the test lamp illuminate?

--

Go to Step 5

Go to Step 6

5

Replace the LH window/door lock switch. Refer to Front Side Door Window Switch Replacement .

Is the repair complete?

--

Go to Power Windows System Check

--

6

Repair the open in the BLK wire and/or replace the SP551, SP252, and/or junction block 1, as needed. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Windows System Check

--