GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Turn the headlamp switch to the PARK position.

    • Park and side marker lamps light.
    • Tail lamps light.
    • License lamps light.
    •  Park Lamps Inoperative

2

Turn headlamp switch to the OFF position.

All exterior lamps turn OFF.

Headlamps - Low Beams On with Headlamp Switch Off

3

  1. Depress the brake pedal.
  2. Release the brake pedal.
  1. Stoplamps and the CHMSL light when the brake pedal is depressed.
  2. Stoplamps and the CHMSL turn OFF when the brake pedal is released.
    •  Stop Lamps Always On
    •  Stop Lamps Inoperative

4

Depress the hazard lamp switch.

Front and rear hazard lamps flash.

Hazard Lamps Inoperative

5

  1. Turn the ignition switch to the ON position.
  2. Position the turn signal lever to the Left turn position.
  3. Position the turn signal lever to the Right turn position.
  1. DRL headlamps illuminate.
  2. Left turn signals and indicator flash while in the Left turn position.
  3. Right turn signals and indicator flash while in the Right turn position.

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