Where's the horn relay?

Kevin Lynch

Kevin Lynch

PCS Member
Working on the toggle (69 MM) to select horn or siren. We are tracing wires forwards and backwards, but need to find the relay itself. Any ideas? We're looking!
Thanks
 
There was no wire from the fuses to the horn relay. Its under the dash, to the right of the emergency brake- keep looking higher and higher until you see it. There is a harness plugged into it plus one blade for the wire from the fuses.
 
Horn relay is not fused it is hot wired direct to the battery. the horn button grounds the relay. The horn siren switch switches the ground from the horn relay to the siren solenoid. You do need to use a external ground solenoid to make that work.
 
Ed....my son-in-law is my electrical guy. He'll be here today. I'll pass this on. Anyway, the wire to this post is missing. We worked on it a week ago, when I originally posted this. We have the cover off the steering wheel at the moment. Thanks again (and again etc). Always grateful to you, Paul, and all the guys here who chime in with their knowledge.
 
It has been a long time since I last wired up a siren, but it is quite straight forward how to do it, and you don't mess with the horn relay. Locate the wire from the horn contact under the steering wheel, and follow that down to the bottom of the column. Once you have located this, cut it, and run the top half of the wire to a on/off/on switch middle terminal. Then wire the other half of the cut wire to one end of the switch, and that will complete the horn circuit when the switch is thrown in that direction. Now, on the other have of the switch, add a 10' of number 14 gauge wire, and run that out to the engine compartment, and hook it up to a Cole Hersee Solenoid that requires a ground to activate it. I have seen these switches called "isolated grounding switch. The number is Cole Hersee 24115, but check with your supplier for less expensive substitutes. The small terminal is grounded (new wire from 3 position switch at the bottom of the steering column) to complete the circuit. The two heavy lugs on the solenoid are for battery and load (siren).
It looks just like the solenoid that Miller Meteor used for the battery switches, except that solenoid requires positive current to activate it, whereas the siren solenoid uses a ground to activate it.
You could find and clip the wire at the horn relay, and run the wire into the drivers compartment to the switch, and then back out, but that would require more wire, and is more complicated is someone were to try to figure out how it was wired in the future. I like the KISS method. You should be able to get one at NAPA.



Cole Hersee 24115 Solenoid.jpg
You should be able to get one at NAPA.
 
Yes just a double pole single throw switch to switch the ground from the horn relay to the sire selonade. The selonade has to be a continues duty external ground. Gulf cart use s one. But if the car has the switch you may be just missing a wire.
 
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