GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Was the Interior Lamps System Check performed?

--

Go to Step 2

Go to Interior Lamps System Check

2

Does the left power side window switch illuminate?

--

Go to Step 10

Go to Step 3

3

  1. Place the headlamp switch in the park lamps position.
  2. Remove the bulb from the left front power side window switch lamp.
  3. Connect an unpowered test lamp between the left front power side window switch connector, cavity D for CKT 9 (BRN), and ground.

Does the test lamp light?

--

Go to Step 5

Go to Step 4

4

Repair the open in CKT 9 (BRN) between splice S501 and the left front power side window switch.

Does the left front power side window switch illuminate?

--

Go to Step 9

Go to Step 5

5

Connect a J 39200 DMM between the left front side window switch connector, cavity G for CKT 150 (BLK), and ground.

Is continuity present?

--

Go to Step 6

Go to Step 8

6

  1. Inspect the bulb filament of the left front power side window switch lamp for an open.
  2. Replace the bulb, as necessary.

Does the left front power side window switch illuminate?

--

Go to Step 9

Go to Step 7

7

Replace the left front power side window switch.

Does the left front power side window switch illuminate?

--

Go to Step 9

Go to Step 8

8

Repair the open in CKT 150 (BLK) between the left front power side window switch and splice S500.

Does the right front power side window switch illuminate?

--

Go to Interior Lamps System Check

Go to Step 10

9

Does the right power side window switch illuminate?

--

Go to Interior Lamps System Check

Go to Step 10

10

  1. Place the headlamp switch in the park lamps position.
  2. Remove the bulb from the right front power side window switch lamp.
  3. Connect an unpowered test lamp between the right front power side window switch connector, cavity C for CKT 9 (BRN), and ground.

Does the test lamp light?

--

Go to Step 12

Go to Step 11

11

Repair the open in CKT 9 (BRN) between splice S603 and the right front power side window switch.

Do both front power side window switches illuminate?

--

Go to Interior Lamps System Check

Go to Step 12

12

Connect a J 39200 DMM between the right front side window switch connector, cavity C for CKT 150 (BLK), and ground.

Is continuity present?

--

Go to Step 13

Go to Step 15

13

  1. Inspect the bulb filament of the right front power side window switch lamp for an open.
  2. Replace the bulb, as necessary.

Do both front power side window switches illuminate?

--

Go to Interior Lamps System Check

Go to Step 14

14

Replace the right front power side window switch.

Do both front power side window switch illuminate?

--

Go to Interior Lamps System Check

Go to Step 15

15

Repair the open in CKT 150 (BLK) between the right front power side window switch and splice S601.

Do both front power side window switches illuminate?

--

Go to Interior Lamps System Check

--