GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Interior Lights System Check?

--

Go to Step 2

Go to Interior Lamps System Check

2

Disconnect the instrument panel dimmer switch connector.

Are the instrument panel lamps lit?

--

Go to Step 4

Go to Step 3

3

Replace the instrument panel dimmer switch. Refer to Headlamp Switch Replacement .

Is the replacement complete?

--

Go to Interior Lamps System Check

--

4

Remove ILLUM Fuse from the instrument panel fuse block.

Are the instrument panel lamps lit?

--

Go to Step 5

Go to Step 6

5

Repair the short to B+ in CKT 8 (GRY). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Interior Lamps System Check

--

6

Repair the short to B+ in CKT 44 (DK GRN). Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

--

Go to Interior Lamps System Check

--