413-06 Horn 2014 Fiesta
Description and Operation Procedure revision date: 03/19/2013

Horn - System Operation and Component Description

System Operation

System Diagram

Horn Operation

The horn switch consists of a set of contacts separated by springs. One side is connected to ground and the other side is connected to the horn signal circuit. When the driver airbag is pressed, it pushes down on the switch, collapsing the springs and allowing the contacts to touch. When the contacts touch, it closes the circuit through the clockspring to the BCM , and provides a ground signal to the BCM . The BCM then provides voltage to the horn, enabling the horn to sound.