GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Were you sent here from the Interior Lights System Check?

--

Go to Step 2

Go to Interior Lamps System Check

2

Does the dome lamp operate manually?

--

Go to Step 4

Go to Step 3

3

Using a test lamp, backprobe the dome lamp cavity 2 to ground.

Does the test lamp illuminate?

--

Go to Step 6

Go to Step 5

4

Does the door open indicator illuminate when the door is opened?

--

Go to Step 7

Go to Step 11

5

Using a test lamp, backprobe the junction block 1, C1 cavity 3 to ground.

Does the test lamp illuminate?

--

Go to Step 9

Go to Step 10

6

Replace the dome lamp. Refer to Dome Lamp Replacement .

Is the replacement complete?

--

Go to Interior Lamps System Check

--

7

Connect a J 36169-A from cavity 1 of the dome lamp to ground.

When the door is open does the dome lamp illuminate?

--

Go to Step 8

Go to Step 6

8

Repair the open in the RED/WHT wire between the dome lamp and the multifunction alarm module. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Interior Lamps System Check

--

9

Repair the open in the BLU/YEL wire between the dome lamp cavity 2 and the junction block 1, C1. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Interior Lamps System Check

--

10

Replace the junction block 1.

Is the repair complete?

--

Go to Interior Lamps System Check

--

11

Using a fused jumper wire, connect the junction block 2 C4 cavity 7 to ground.

Does the dome lamp illuminate?

--

Go to Step 12

Go to Step 13

12

Replace the Multifunction Alarm Module. Refer to Multifunction Alarm Module Replacement in Theft Deterrent.

Is the replacement complete?

--

Go to Interior Lamps System Check

--

13

Repair the open in the RED/WHT wire and/or replace the door jamb switch, as needed. Refer to Wiring Repairs in Wiring Systems.

Is the repair/replacement complete?

--

Go to Interior Lamps System Check

--