GM Service Manual Online
For 1990-2009 cars only

Fog Lights System Check Export

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Place headlamp switch in the PARK position.
  2. Depress the top portion of the fog lamp switch.
  3. Observe the rear fog lamp.
  1. Park lamps light.
  2. Fog lamp lights.
  3. Fog lamp switch indicator lights.
  4. Fog lamp illumination operates.

2

  1. Depress the bottom portion of the fog lamp switch.
  2. Turn the headlamp switch OFF.
  1. Fog lamps turn OFF.
  2. Fog lamp indicator turns OFF.
  3. Headlamps and park lamps turn OFF.

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.