GM Service Manual Online
For 1990-2009 cars only

Power Window Inoperative - Right Side Front 4 Door

Step

Action

Value(s)

Yes

No

1

Does the right front window operate from the left front window switch?

--

Go to Step 2

Go to Step 5

2

  1. Disconnect the right front window switch.
  2. Turn the ignition switch to the RUN position.
  3. Use a test light in order to backprobe between the right front window switch harness connector terminal F and ground.

Does the test light illuminate?

--

Go to Step 3

Go to Step 4

3

Replace the right front window switch. Refer to Front Door Switch Replacement .

Is the repair complete?

--

System OK

--

4

Repair the poor connection or the open in CKT 1307 between S307 and the right front windows switch harness connector terminal F.

Is the repair complete?

--

System OK

--

5

  1. Disconnect the right front window switch.
  2. Turn the ignition switch to the RUN position.
  3. Use a test light in order to backprobe between the right front window switch harness connector terminal D and H.

Does the test light illuminate?

--

Go to Step 6

Go to Step 7

6

Repair the left front window switch. Refer to Front Door Switch Replacement .

Is the repair complete?

--

System OK

--

7

  1. Leave the test light at the same location.
  2. Observe the test light and press the left front window switch to the Up and the DOWN position.

Does the test light with the switch in both positions?

--

Go to Step 8

Go to Step 9

8

  1. Turn the ignition to the OFF position.
  2. Reconnect the right front window switch.
  3. Disconnect the right front window regulator motor.
  4. Turn the ignition switch to the RUN position.
  5. Use a test light in order to backprobe the right front window regulator motor harness connector between terminal A and terminal B.

Does the test light illuminate?

--

Go to Step 3

Go to Step 11

9

Inspect for a poor connection or an open in CKT 166.

Is there a poor connection or an open in CKT 166?

--

Go to Step 17

Go to Step 10

10

Inspect for a poor connection or an open in CKT 167.

Is there a poor connection or an open in CKT 167?

--

Go to Step 18

Go to Step 6

11

  1. Leave the test light in the same location.
  2. Observe the test light and press the left front window switch to the UP position and the DOWN position.

Does the test light with the switch in both positions?

--

Go to Step 12

Go to Step 13

12

  1. Replace the right front window regulator. Refer to Front Side Door Window Regulator Replacement .
  2. Inspect the system.

Is the repair complete?

--

System OK

--

13

Inspect for a poor connection or an open in CKT 666.

Is there a poor connection or an open in CKT 666?

--

Go to Step 16

Go to Step 14

14

Inspect for a poor connection or an open in CKT 667.

Is there a poor connection or an open in CKT 667?

--

Go to Step 15

Go to Step 3

15

  1. Repair the poor connection or the open in CKT 667.
  2. Inspect the system.

Is the repair complete?

--

System OK

--

16

  1. Repair the poor connection or the open in CKT 666.
  2. Inspect the system.

Is the repair complete?

--

System OK

--

17

  1. Repair the poor connection or the open in CKT 166.
  2. Inspect the system.

Is the repair complete?

--

System OK

--

18

  1. Repair the poor connection or the open in CKT 167.
  2. Inspect the system.

Is the repair complete?

--

System OK

--

Power Window Inoperative - Right Side Front 2 Door

Step

Action

Value(s)

Yes

No

1

Determine if the right front window operates from the left front window switch.

Does the right front window operate from the left front window switch?

--

Go to Step 2

Go to Step 5

2

  1. Disconnect the right front window switch.
  2. Turn the ignition switch to the RUN position.
  3. Use a test light in order to backprobe between the right front window switch harness connector terminal F and ground.

Does the test light illuminate?

--

Go to Step 3

Go to Step 4

3

Replace the right front window switch. Refer to Front Door Switch Replacement .

Is the repair complete?

--

System OK

--

4

Repair the poor connection or the open in CKT 143 between S310 and the right front window switch terminal harness connector terminal F.

Is the repair complete?

--

System OK

--

5

  1. Disconnect the right front window switch.
  2. Turn the ignition switch to the RUN position.
  3. Use a test light in order to backprobe between the right front window switch harness connector terminal D and H.

Does the test light illuminate?

--

Go to Step 6

Go to Step 7

6

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

Is the repair complete?

--

System OK

--

7

  1. Leave the test light connected in the same position.
  2. Observe the test light while pressing the left front window switch to the UP position and the DOWN position.

Does the test light with the switch in both positions?

--

Go to Step 8

Go to Step 9

8

  1. Turn the ignition switch to the OFF position.
  2. Reconnect the right front window switch.
  3. Disconnect the right front window regulator motor.
  4. Turn the ignition switch to the RUN position.
  5. Use a test light in order to backprobe the right front window regulator motor harness connector between terminal A and terminal B.

Does the test light illuminate?

--

Go to Step 3

Go to Step 11

9

Inspect for a poor connection or an open in CKT 166.

Is there a poor connection or an open in CKT 166?

--

Go to Step 17

Go to Step 10

10

Inspect for a poor connection or an open in CKT 167.

Is there a poor connection or an open in CKT 167?

--

Go to Step 18

Go to Step 6

11

  1. Leave the test light connected in the same position.
  2. Observe the test light while pressing the left front window switch to the UP position and the DOWN position.

Does the light illuminate with the switch in both positions?

--

Go to Step 12

Go to Step 13

12

Replace the right front window regulator. Refer to Front Side Door Window Regulator Replacement

Is the repair complete?

--

System OK

--

13

Inspect for a poor connection or an open in CKT 666.

Is there a poor connection or an open in CKT 666?

--

Go to Step 16

Go to Step 14

14

Inspect for a poor connection or an open in CKT 667.

Is there a poor connection or an open in CKT 667?

--

Go to Step 15

Go to Step 3

15

Repair the poor connection or the open in CKT 667.

Is the repair complete?

--

System OK

--

16

Repair the poor connection or the open in CKT 666.

Is the repair complete?

--

System OK

--

17

Repair the poor connection or the open in CKT 166.

Is the repair complete?

--

System OK

--

18

Repair the poor connection or the open in CKT 167.

Is the repair complete?

--

System OK

--