GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Inspect circuit 230 for a short to B+.

Has the repair been made?

--

Go to Step 2

Go to Step 3

2

Repair a short to B+ on circuit 230.

Has the repair been made?

--

Go to Interior Lights Dimming System Check

--

3

Replace the headlamp switch. Refer to Headlamp Switch Replacement .

Has the repair been made?

--

Go to Interior Lights Dimming System Check

--