Horn: Description and Operation

The horn system uses a switch and horn relay. The horn switch is in the center of the steering wheel.

Circuit A4 from fuse 8 in the Power Distribution Center (PDC) feeds circuit F31 through fuse 15 in the PDC. Circuit F31 is HOT at all times and powers the coil and contact sides of the horn relay.

When the case grounded horn switch is pressed, circuit X3 provides ground for the coil side of the relay and the contacts close. When the contacts close, circuit X2 supplies voltage to the horn. Circuit Z1 provides ground for the horn.