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 lights are off.

Park Lamps Always On

2

Place the headlamp switch in the PARK position.

All park lamps, side marker lamps, tail lamps, and license lamps turn on.

    •  Park Lamps Inoperative
    •  Park Lamps Inoperative

3

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

The LH and RH 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 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 position to indicate a left turn.
    • LH turn lamps flash approximately 80-90 times per minute
    • The LH cornering lamp lights

6

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

    • RH turn lamps flash approximately 80-90 times per minute
    • The RH cornering lamp lights

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