GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Power Window System Check?

--

Go to Step 2

Go to Power Windows System Check

2

  1. Disconnect the right front window switch connector.
  2. Turn the ignition switch to the RUN position.
  3. Connect a test lamp between connector terminal A and terminal E.
  4. Operate the window switch to the UP and the DOWN positions.

Does the test lamp light in both of the positions?

--

Go to Step 3

Go to Step 5

3

  1. Connect a fused jumper between the connector terminal A and terminal D.
  2. Connect a fused jumper between the connector terminal E and terminal H.
  3. Operate right front window switch on the master switch to the UP and to the DOWN positions.

Does the front window operate?

--

Go to Step 4

Go to Step 6

4

Replace the right front window switch. Refer to the following procedures:

Is the repair complete?

--

Go to Power Windows System Check

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5

Test for an open in CKT 166 and CKT 167.

Did you find an open in either of the circuits?

--

Go to Step 7

Go to Step 8

6

Test for an open in CKT 666 and CKT 667.

Did you find an open in either of the circuits?

--

Go to Step 7

Go to Step 9

7

Repair the faulty circuit. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Power Windows System Check

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8

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

Is the repair complete?

--

Go to Power Windows System Check

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9

Replace the right front window motor. Refer to

Is the repair complete?

--

Go to Power Windows System Check

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