The horn system consists of the following components:

The vehicle horn system is activated whenever the horn switch is depressed or when the keyless entry system is used to lock the vehicle. A horn chirp may sound to notify the driver that the vehicle has been locked. For further information refer to Keyless Entry System Description and Operation.

Battery positive voltage is applied at all times to the horn relay coil and the horn relay switch. Pressing the horn switch applies ground to the horn relay control circuit. When the horn relay control circuit is grounded, the horn relay is energized and battery positive voltage is applied to the horns through the horn control circuit. The horns sounds as long as ground is applied to the horn relay control circuit.