GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Inspect the I/P dimmer switch harness connector for a poor connection.

Is there a poor connection?

--

Go to Step 2

Go to Step 3

2

Repair a poor connection on the I/P dimmer switch.

Has the repair been made?

--

Go to Interior Lights Dimming System Check

--

3

Replace the I/P dimmer switch. Refer to Instrument Panel Multifunction Switch Assembly Replacement in Instrument Panel, Gauges and Console.

Has the repair been made?

--

Go to Interior Lights Dimming System Check

--