GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Place the headlamp switch in the OFF position.

All exterior lamps are off.

    •  Park Lamps Always On
    •  Park Lamps Always On
    •  Park Lamps Always On

2

Place the headlamp switch in the PARK position.

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

    •  Park Lamps Inoperative
    •  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.

All of the turn lamps flash approximately 80-90 times per minute. The left and right turn indicators flash continuously.

Hazard Lamps Inoperative

4

  1. Place the hazard switch in the OFF position.
  2. Place the multi-function lever in the position to indicate a left hand turn.
  3. Place the multi-function lever in the position to indicate a right hand turn.

The respective turn lamps flash approximately 80-90 times per minute. The respective turn indicator flashes continuously. The respective cornering lamp lights (if equipped).

5

  1. Place the multi-function lever in the OFF position.
  2. Press the brake pedal.

All of the stop lamps light.

    •  Stop Lamps Inoperative
    •  Stop Lamps Inoperative

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