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

Will the dome lamp extinguish when the switch is in the OFF position?

--

Go to Step 3

Go to Step 4

3

  1. Disconnect the multifunction alarm module.
  2. Test for a short to ground in the RED/WHT wire from cavity 10 of the multifunction alarm module connector using a J 39200 .

Did you find a short to ground in the RED/WHT wire?

--

Go to Step 5

Go to Step 6

4

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

Is the repair complete?

--

Go to Interior Lamps System Check

--

5

Repair the short to ground in the RED/WHT wire. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Interior Lamps System Check

--

6

Test the RED/WHT wires from the multifunction alarm module to the door jamb switches for a short to ground.

Are the RED/WHT wires shorted to ground?

--

Go to Step 7

Go to Step 8

7

Repair the short to ground in the damaged wires. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Interior Lamps System Check

--

8

Replace the multifunction alarm module. Refer to Multifunction Alarm Module Replacement in Instrument Panel, Gauges, and Console.

Is the replacement complete?

--

Go to Interior Lamps System Check

--