Air Horn Relay
Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=69582
Printed Date: April 25, 2024 at 4:50 AM
Topic: Air Horn Relay
Posted By: integra fl
Subject: Air Horn Relay
Date Posted: December 30, 2005 at 2:23 PM
I got an air horn kit yesterday and it came with a relay to install it, I was told I can just not use the relay and just hook the compressor up to the positive wire from my stock horn and just ground the negative wire going to the neg. pole of the compressor, would this cause a problem? whats better to do?
Replies:
Posted By: tragik
Date Posted: December 31, 2005 at 3:23 AM
use the relay. The air horn may sound using the power from the horn, but it wont be as loud as if the airhorns compressor has its own power source. and it wont blow ahorn fues either if you do it that way. ------------- Northstart.....or start it your damn self.
Posted By: techguy688
Date Posted: December 31, 2005 at 6:06 PM
I second that, Do it right the first time. The relay will save you troubleshooting time in the long run. ------------- Just because you've done something for a long time doesn't mean you're any good at it.
Cable Ties Rock!
Posted By: integra fl
Date Posted: January 02, 2006 at 2:19 PM
Where do I hook up 86 and 85 too? I know 30 goes straight to the battery and 87 goes to the compressor. I got an Integra 92, and was told when i push the horn button then it becomes grounded, does it make a difference?
Posted By: techguy688
Date Posted: January 02, 2006 at 8:53 PM
If you want to use your existing horn button and the button(switch) is on the (-) side of the circuit, connect 85 to the horn wire . Connect 86 to a constant 12vdc source. (If the horn goes off constantly when you hook it up without pushing the horn button you are on the wrong side of the horn switch.) If you want to use a seperate button. ill find that diagram. ------------- Just because you've done something for a long time doesn't mean you're any good at it.
Cable Ties Rock!
Posted By: techguy688
Date Posted: January 02, 2006 at 9:35 PM
I threw this together dont mind the trial software stamp. If you do this one make sure you fuse it near the power source. ------------- Just because you've done something for a long time doesn't mean you're any good at it.
Cable Ties Rock!
Posted By: integra fl
Date Posted: January 02, 2006 at 10:06 PM
thanks alot bro!!!
Posted By: MikesMarine
Date Posted: January 07, 2006 at 3:25 AM
in my business, unless you are using very heavy guage wire, the relay wont go, thus the horn wont blow (or very weakly). omitting the relay, and upgrading the fuse in the harness does make it work
Posted By: integra fl
Date Posted: January 07, 2006 at 12:22 PM
you mean just change out the stock horn fuse in my car and put in a higher one and just connect (+) and (-) to the horn wires?
Posted By: yourm0m1
Date Posted: April 27, 2006 at 7:00 PM
sorry to post on an older topic but i had a question about this whole setup.....can i just wire the compressor with the positive wire to the battery fused, and then the ground on a switch to the chassi?? thanks for the help just trying to avoid the factory horn and be able to switch it on when i want to and not interfere with the factory horn use
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