The first thing is to see if there is a spare N.O. set of contacts on the alarm relay. If there is a spare set of contacts connect your horn supply to one side of the N.O. contact terminals. Connect the horn to the other side of the N.O. contact terminals. Energize the horn circuit's supply. Now when the alarm circuit relay activates the horn will sound.
Most horn buttons provide the ground to energize the horn relay. The horn relay when triggered sends power to the horn.
if its not the alarm malfunctioning, there is a short circuit somewhere between the switch/battery/relay and the horn its self - youll have to find the short and insulate the wire or replace the switch.
under the hood The wire for the horn is part of the front lights wiring harness. The relay is not under the hood. Please, if someone knows, where is the horn relay?
If you're just adding a second horn that sounds at the same time as the original equipment horn - you will need to cut into the wire that leads to the original equipment horn in order to get power to the added one. Install the additional horn making sure it is securely grounded. Then, splice the power line to the new horn into the power wire to the existing horn. This will ensure that when the horn button is depressed, both horns will receive power simultaneously.
That would be an alarm the horn is behind the grill
A good way to fine the horn relay if you dont have a manual is to pull the wire on the horn then have somewon press the horn button .... beep beep beep you will hear a clicking sound which will help you locate the relay
of coures it will connect with a wire
the horn relay on my '03 sunfire is under the dasboard taped to the wire bundle to the left side of the steering column.
The horn relay in 1996 Geo Tracker is located under the left hand side of the instrument panel attached to the CEM. Two green wires connect the power from the fuse to the relay, a blue/green wire connects to the horn and a green/black wire carries power to the horn.
Broken Or Disconnected Wire To The Horn. Check For Voltage When Horn Button Is Pushed At The Wire After Removing It From The Horn. On A Vet Probably Not Grounded.
the wire is green with a black tracer. melvin
Inproper polarity on horn wires. or horn relay bad. Ensure voltage (12VDC) on horn wire when activating horn. If nothing... suspect relay.