Horn: Description and Operation

HORN

The horn system consists of the following components:
- steering wheel pad horn switch (part of driver side air bag module)
- horn relay (located in the battery junction box)
- horn(s) (located underneath driver side headlight, behind front bumper cover)
- clockspring

NOTE: The steering wheel horn pad switch is part of the driver side air bag module.

PRINCIPLES OF OPERATION

The horn system consists of a relay, a steering wheel switch and either one or two horns. The horn(s) receives voltage from the switched side of the relay, and the relay switch is controlled on its ground side by the steering wheel switch.

The horn relay, is located in the central junction box (CJB) and is supplied with a permanent voltage from the battery junction box (BJB).

The steering wheel switch shares the steering wheel clockspring with the air bag circuit although each of these systems work completely independent of each other.