GM Service Manual Online
For 1990-2009 cars only

Rear Quarter Window Inoperative Both

Step

Action

Value(s)

Yes

No

1

Was the entire Power Windows System Check performed?

--

Go to Step 2

Go to Power Windows System Check

2

  1. Place the ignition switch into the RUN position.
  2. Using a test lamp, backprobe the interior lamp and multifunction switch (rear quarter window switch) connector C4 from terminal E and ground.

Does the test lamp light?

--

Go to Step 3

Go to Step 4

3

Using a test lamp, backprobe the interior lamp and multifunction switch (rear quarter window switch) connector C4 from terminals E and B.

Does the test lamp light?

--

Go to Step 5

Go to Step 6

4

Check PWR QTR VENT fuse.

Is the fuse open?

--

Go to Step 7

Go to Step 8

5

  1. Using a test lamp, backprobe the interior lamp and multifunction switch (rear quarter window switch) connector C4 from terminals C and D.
  2. Press the rear quarter window switch to the OPEN and CLOSED positions.

Does the test lamp light in both cases?

--

Go to Step 9

Go to Step 10

6

Repair the open in CKT 650.

Is the repair complete?

--

Go to Step 18

--

7

Check for a short to ground in CKT 741.

Is a short to ground present?

--

Go to Step 11

Go to Step 12

8

Repair the open in CKT 741.

Is the repair complete?

--

Go to Step 18

--

9

Check for an open in CKT 901.

Is there an open present?

--

Go to Step 13

Go to Step 14

10

Replace the interior lamp and multifunction switch. Refer to Dome Lamp Override Switch Replacement in Lighting Systems.

Is the repair complete?

--

Go to Step 18

--

11

Repair the short to ground in CKT 741.

Is the repair complete?

--

Go to Step 18

--

12

Check for a short to ground in CKT 901.

Is a short to ground present?

--

Go to Step 15

Go to Step 16

13

Repair the open in CKT 901.

Is the repair complete?

--

Go to Step 18

--

14

Repair the open in CKT 902.

Is the repair complete?

--

Go to Step 18

--

15

Repair the short to ground in CKT 901.

Is the repair complete?

--

Go to Step 18

--

16

Check for a short to ground in CKT 902.

Is a short to ground present?

--

Go to Step 17

Go to Step 10

17

Repair the short to ground in CKT 902.

Is the repair complete?

--

Go to Step 18

--

18

  1. Turn the ignition switch to the OFF position.
  2. Reconnect all connectors/components removed.

Have all the repairs been made?

--

Go to Power Windows System Check

--

Rear Quarter Window Inoperative One Only

Step

Action

Value(s)

Yes

No

1

Was the entire Power Windows System Check performed?

--

Go to Step 2

Go to Power Windows System Check

2

  1. Place the ignition switch into the RUN position.
  2. Using a test lamp, backprobe the inoperative quarter window actuator connector from terminal A to terminal B.
  3. Press the rear quarter window switch to the OPEN and then CLOSED position.

Does the test lamp light after both actions?

--

Go to Step 3

Go to Step 4

3

Replace the inoperative quarter window actuator. Refer to Body Side Window Actuator Replacement in Body Rear End.

Is the repair complete?

--

Go to Step 7

--

4

  1. Using a test lamp, backprobe the inoperative quarter window actuator connector from terminal B and ground.
  2. Press the rear quarter window switch to the OPEN position.

Does the test lamp light?

--

Go to Step 5

Go to Step 6

5

Repair the open in CKT 901 between S423 and the inoperative quarter window actuator terminal A.

Is the repair complete?

--

Go to Step 7

--

6

Repair the open in CKT 902 between S427 and the inoperative quarter window actuator terminal B.

Is the repair complete?

--

Go to Step 7

--

7

  1. Turn the ignition switch to the OFF position.
  2. Reconnect all connectors/components removed.

Have all the repairs been made?

--

Go to Power Windows System Check

--