GM Service Manual Online
For 1990-2009 cars only

Dome Lamps Inoperative Dome Lamp 4-Door

Step

Action

Yes

No

1

Did you review the Interior Lights Circuit Description and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Lighting Systems

2

Verify that the Dome Lamp is inoperative.

Does the Dome Lamp operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Test for an open from cavity 1 of the Dome Lamp assembly to a good ground.

Does an open condition exist?

Go to Step 4

Go to Step 5

4

Repair the open in the BLK wire from cavity 1 to S313. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 12

--

5

Test for an open in the WHT wire between the Junction Block C1 cavity 9 and the DRL Control Module cavity 5.

Does an open condition exist?

Go to Step 6

Go to Step 7

6

Repair the open in the WHT wire between the junction block and the dome lamp. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

Go to Step 12

--

7

With the key in the ignition, test for an open in the WHT wire between the DRL Module cavity 12 and S267.

Does an open condition exist?

Go to Step 8

Go to Step 9

8

Repair the open in the WHT wire between the DRL Module and S267. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 12

--

9

Test for an open between the Dome Lamp cavity 3 and S302 to the door jamb switches.

Does an open condition exist?

Go to Step 10

Go to Step 11

10

Repair the BLK/RED wire and or replace the faulty door jamb switch. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 12

--

11

Replace the dome lamp assembly. Refer to Dome Lamp Replacement .

Did you complete the repair?

Go to Step 12

--

12

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3

Dome Lamps Inoperative Dome Lamp 2-Door

Step

Action

Yes

No

1

Did you review the Interior Lights Circuit Description and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Lighting Systems

2

Verify that the Dome Lamp is inoperative.

Does the Dome Lamp operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Test for an open condition from cavity 1 of the Dome Lamp assembly to a good ground.

Does a short to ground condition exist?

Go to Step 4

Go to Step 5

4

Repair the open in the BLK wire from cavity 1 to S300. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 12

--

5

Test for an open in the WHT wire between the Junction Block C1 cavity 9 and the DRL Control Module cavity 5.

Does an open condition exist?

Go to Step 6

Go to Step 7

6

Repair the open in the WHT wire between the junction block and the dome lamp. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

Go to Step 12

--

7

With the key in the ignition, test for an open in the WHT wire between the DRL Module cavity 12 and S267.

Does an open condition exist?

Go to Step 8

Go to Step 9

8

Repair the open in the WHT wire between the DRL Module and S267. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 12

--

9

Test for an open between the Dome Lamp cavity 3 and S302 to the door jamb switches.

Does an open condition exist?

Go to Step 10

Go to Step 11

10

Repair the BLK/RED wire and or replace the faulty door jamb switch. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 12

--

11

Replace the dome lamp assembly. Refer to Dome Lamp Replacement .

Did you complete the repair?

Go to Step 12

--

12

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3