GM Service Manual Online
For 1990-2009 cars only

Step

Action

Normal Result(s)

Abnormal Result(s)*

1

Activate the horn by pressing the horn pad.

Both of the horns sound.

    •  Horns Always On
    •  Horns Inoperative
    •  Horns - Poor Tone

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