Operation CHARM: Car repair manuals for everyone.

Horn: Description and Operation

Circuit Operation
Voltage is applied at all times through the EB-2 HORN fuse to the horn relay in the alarm and relay control unit. The circuit continues from the horn relay to the SRS coil assembly and the horn switch. When the horn switch is closed, the circuit path is completed to ground and the horn relay energizes. The relay contact closes and battery voltage is applied to the horn. The horn sounds.