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. Press the lockout switch to OFF position.
  2. Turn the ignition to the LOCK position.
  3. Disconnect the inoperative window switch.
  4. Turn the ignition to the RUN position.
  5. Use a test light, to probe the inoperative window switch terminal B and ground.

Does the test light illuminate?

--

Go to Step 3

Go to Step 4

3

  1. Use a test light, to probe the inoperative window switch terminal A and E.
  2. Press the left window switch up and down.

Is the test light on in both cases?

--

Go to Step 5

Go to Step 6

4

Repair a poor connection or open in circuit 1307 between the switch terminal B and S307.

Has the repair been made and the system rechecked?

--

Go to Power Windows System Check

--

5

  1. Turn the ignition to the LOCK position.
  2. Reconnect the window switch.
  3. Disconnect the window regulator motor.

  4. Turn the ignition to the RUN position.
  5. With a test light, probe the window regulator motor terminal A and B.
  6. Press the switch up and down.

Is the test light on in both cases?

--

Go to Step 7

Go to Step 8

6

  1. Turn the ignition to the LOCK position.
  2. Disconnect the left window switch.
  3. Use a J 39200 Digital Multimeter (DMM) in order to check continuity in circuit 166, 168 or 170.

Is there continuity?

--

Go to Step 9

Go to Step 10

7

Replace the window regulator motor. Refer to Front Side Door Window Regulator Replacement or Rear Side Door Window Regulator Replacement .

Has the repair been made and the system rechecked?

--

Go to Power Windows System Check

--

8

  1. Turn the ignition to the LOCK position.
  2. Disconnect the window switch.
  3. Use a J 39200 digital multimeter (DMM), to check continuity in circuit 666, 668 or 670.

Is there continuity?

--

Go to Step 11

Go to Step 12

9

Check for a short to ground in circuit 166, 168 or 170.

Is there a short in the circuit?

--

Go to Step 13

Go to Step 14

10

Repair an open in circuit 166, 168 or 170.

Has the repair been made and the system rechecked?

--

Go to Power Windows System Check

--

11

Check for a short to ground in circuit 666, 668 or 670.

Is there a short in the circuit?

--

Go to Step 15

Go to Step 16

12

Repair an open in circuit 666, 668 or 670.

Has the repair been made and the system rechecked?

--

Go to Power Windows System Check

--

13

Repair a short to ground in circuit 166, 168 or 170.

Has the repair been made and the system rechecked?

--

Go to Power Windows System Check

--

14

Check continuity in circuit 167, 169 and 671.

Is there continuity in the circuit?

--

Go to Step 17

Go to Step 18

15

Repair a short to ground in circuit 666, 668 or 670.

Has the repair been made and the system rechecked?

--

Go to Power Windows System Check

--

16

Check continuity in circuit 667, 669 or 671.

Is there continuity in the circuit?

--

Go to Step 19

Go to Step 20

17

Check for a short to ground in circuit 167, 169 or 171.

Has the repair been made and the system rechecked?

--

Go to Step 21

Go to Step 22

18

Repair an open in circuit 167, 169 or 171.

Has the repair been made and the system rechecked?

--

Go to Power Windows System Check

--

19

Check for a short to ground in circuit 667, 669 or 671.

Is there a short to ground in the circuit?

--

Go to Step 23

Go to Step 24

20

Repair an open in circuit 667, 669, 671.

Has the repair been made and the system rechecked?

--

Go to Power Windows System Check

--

21

Repair a short to ground in circuit 167, 169 or 171.

Has the repair been made and the system rechecked?

--

Go to Power Windows System Check

--

22

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

Has the repair been made and the system rechecked?

--

Go to Power Windows System Check

--

23

Repair a short to ground in circuit 667, 669, 671.

Has the repair been made and the system rechecked?

--

Go to Power Windows System Check

--

24

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

Has the repair been made and the system rechecked?

--

Go to Power Windows System Check

--