Horn Honk Relay
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=19630
Printed Date: May 15, 2024 at 4:02 PM
Topic: Horn Honk Relay
Posted By: babysho
Subject: Horn Honk Relay
Date Posted: October 03, 2003 at 8:27 PM
Are all relays the same or is their a particular relay I must use in order to make the horn honk with the alarm? and my other questions is has anyone ever heard of the horn output wire being a ground? Rather than -or+
thanks!!
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ar
Replies:
Posted By: padawan
Date Posted: October 03, 2003 at 8:42 PM
85 to 12V+ fused @ 15amps
86 to (+) Siren output
87 to Ground
30 to Vehicle's (-) Horn Wire (If vehicle has (+) horn wire pin 87 will also go to 12V+)
87A not used
Never really heard of a vehicle's horn wire being called "ground" and not + or -, ground is probably (-) though, what year, make/model vehicle is it?
Posted By: babysho
Date Posted: October 03, 2003 at 10:02 PM
No I meant the wire coming from the module. I guess what he meant was that it is neg. I have a 99 taurus. Thanks for the diagram I have a relay but I thought their might be a particular relay for this job. Is This relay diagram good for low current outputs?
thanks
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ar
Posted By: Chris Luongo
Date Posted: October 03, 2003 at 11:16 PM
Pretty much every car except a few Hondas uses a low-current horn wire from the factory. You don't need a relay.
Posted By: NowYaKnow
Date Posted: October 04, 2003 at 9:47 PM
padawan wrote:
85 to 12V+ fused @ 15amps
86 to (+) Siren output
Hmm if you hook it up that way the relay will never energize..Also most relays need about 75 - 150mA to energize the coil a 15 amp fuse is a little overkill a 2,3, 5 amp would be more than enough.
Posted By: ninja8oi
Date Posted: October 18, 2003 at 7:52 PM
I have a horn hook setup hook up to a flash to my Acura Integra. I don't think there is enough current to pulse the horn through the flasher. Is that why my horn is continous sounding instead of pulse
Posted By: kenmci
Date Posted: October 18, 2003 at 9:04 PM
if you are not sure use a relay anyway. Just as stated above pin 86 to 12V+ pin 85 to horn honk output on alarm Pin 87 to ground Pin 30 to negative horn wire
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