GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

  1. Turn the ignition switch to the RUN position.
  2. Disconnect the master window switch harness connector.
  3. Use the J 39200 Digital Multimeter (DMM) in order to measure the voltage between terminal H of the master window switch harness connector and ground.

Does the voltage equal the specified value?

B+

Go to Step 2

Go to Step 3

2

Use the J 39200 DMM in order to measure the voltage between terminal G and terminal H of the master window switch harness connector.

Does the voltage equal the specified value?

B+

Go to Step 4

Go to Step 5

3

Repair the open in CKT 141 between the fuse block and the master window switch. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

System OK

--

4

Repair the master window switch. Refer to Window Switch Replacement - Console .

Did you complete the repair?

--

System OK

--

5

Repair the open in CKT 150 between the master window switch and ground G304. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

System OK

--