GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

  1. Turn the ignition switch to the OFF position.
  2. Place the headlamp switch in the OFF position.

All of the exterior lamps are off.

Park Lamps Always On

2

Place the headlamp switch in the PARK position.

All of the following lamps turn on:

    â€¢ The park lamps
    â€¢ The side marker lamps
    â€¢ The tail lamps
    â€¢ The license lamps
    â€¢  Park Lamps Inoperative
    â€¢  Park Lamps Inoperative

3

  1. Place the headlamp switch in the OFF position.
  2. Place the hazard switch in the ON position.

The turn lamps flash approximately 80-90 times per minute.

Hazard Lamps Inoperative

4

  1. Place the hazard switch in the OFF position.
  2. Press the brake pedal.

All of the stop lamps are on with the pedal pressed.

Stop Lamps Inoperative

5

  1. Turn the ignition switch to the RUN position.
  2. Place the multi-function lever (turn/hazard switch assembly) in the left turn position.
    â€¢ The left turn lamps flash approximately 80-90 times per minute.
    â€¢ The left cornering lamp lights.
    â€¢  Cornering Lamps Inoperative

6

Place the multi-function lever (turn/hazard switch assembly) in the right turn position.

    â€¢ The right turn lamps flash approximately 80-90 times per minute.
    â€¢ The right cornering lamp lights.
    â€¢  Cornering Lamps Inoperative

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