Horn: Description and Operation

HORN
The hem system consists of the following components.
- horn switch (part of the steering wheel)
- steering wheel switch harness (part of the steering wheel)
- clockspring
- horn relay (pan of the smart junction box [SJB])
- horn

For the removal and installation of the steering wheel, see STEERING WHEEL. For the removal and installation of the SJB, see SMART JUNCTION BOX (SJB).

Principles of Operation
The horn switch is incorporated within the steering wheel. When the switch is closed ground is supplied through the clockspring from the vehicle harness. The horn relay is then energized, supplying voltage to the horn enabling the horn to sound. The horn relay is integral to the smart junction box (SJB).