GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Did you perform the Lighting System Diagnostic System Check?

--

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

2

  1. Turn the ignition to the ON position.
  2. Press the fog lamp switch to the ON position.

Are the fog lamps on and the fog lamp indicator on?

--

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

Replace the fog lamp switch.

Refer to Headlamp Switch Replacement in Instrument Panel, Gauges, and Console.

Has the repair been made?

--

Go to Step 4

 

4

Operate the system in order to verify the repair.

Did you correct the condition?

--

Go to Diagnostic System Check - Lighting Systems

Go to Step 2