GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 1999 🢒 Chevy Suburban - 2WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Fog Lights System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

1
  1. On Luxury vehicles, place headlamp switch in the PARK position.
  2. On Z71/Limited vehicles, place the ignition to the ON position.
  3. On all vehicles, Depress the top portion of the fog lamp switch.
    • Park lamps light.
    • Fog lamps light.
    • Fog lamp switch indicator lights.

2
  1. Place the headlamp switch in the headlamp position.
  2. Alternate the headlamp dimmer switch between the HIGH and LOW beam positions.
    • Headlamps light and alternate between the HIGH and LOW beams.
    • Fog lamps light in the LOW beam position and turn off in the HIGH beam position.
    •  Fog Lamps Always On

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

Fog Lamps Always On

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