Horn Operation

CIRCUIT OPERATION
The horn system is powered by a 20 Amp fuse located in cavity 7 of the junction block. The fuse is HOT at all times, on circuit F62, and supplies voltage to the coil and to the contact side of the horn relay. Power for the fuse is supplied on circuit A6, which originates in the Power Distribution Center (PDC), and is protected by a 40 Amp fuse located in cavity 6.

When the operator presses the horn switch, a ground path is completed on the coil side of the horn relay through the switch, on circuit x3. The horn relay, located in the junction block, then CLOSES the relay contact voltage is passed through the CLOSED relay contacts on circuit X2 to the horns. Grounding for the horns is on the Z1 circuit to the right cowl panel.

On vehicles equipped with Vehicle Theft Alarm (VTA), the X3 circuit is spliced to the Body Control Module (BCM). Description and Operation