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. Turn the ignition switch to the RUN position.
  2. Measure the voltage between the appropriate terminal and ground:
  3. • 2 door - terminal G
    • 4 door - connector C1 terminal G

Does the voltage measure at the specified value?

B+

Go to Step 3

Go to Step 6

3

  1. Place the ignition switch in the RUN position.
  2. Measure the voltage between the appropriate points:
  3. • 2 door - terminal G and terminal B
    • 4 door - connector C1 terminal G and terminal B

Does the voltage measure at the specified value?

B+

Go to Step 4

Go to Step 7

4

Verify that the master switch assembly connector is mated correctly.

Is the connector OK?

--

Go to Step 5

Go to Step 8

5

Replace the master switch assembly. Refer to the following procedures:

Is the repair complete?

--

Go to Power Windows System Check

--

6

Repair an open in CKT 141. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Windows System Check

--

7

Repair an open in CKT 150. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Windows System Check

--

8

Repair the faulty connector. Refer to Connector Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Windows System Check

--