GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you review the system operation and perform the necessary inspections?

--

Go to Step 2

Go to Symptoms - Doors

2

  1. Turn the ignition to the RUN position.
  2. Attempt to operate both power windows from the left side window switch.

Do both windows operate normally from the left side window switch?

--

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

  1. Disconnect the left side window switch connector.
  2. Turn the ignition switch to RUN.
  3. Connect a test lamp between the left side window switch connector terminal F and ground.

Does the test lamp illuminate?

--

Go to Step 5

Go to Step 4

4

Repair the open in circuit 341 between S208 and the left side window switch terminal F. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

--

Go to Step 7

--

5

Test for and repair a poor connection at the left side window switch terminal F. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and repair a poor connection?

--

Go to Step 7

Go to Step 6

6

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

Did you complete the replacement?

--

Go to Step 7

--

7

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 3