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How to hook up horn to alarm, diagrams

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=28219
Printed Date: May 15, 2025 at 5:26 AM


Topic: How to hook up horn to alarm, diagrams

Posted By: cxSHOE
Subject: How to hook up horn to alarm, diagrams
Date Posted: March 12, 2004 at 1:03 AM

alarm is a G5 intelliguard 850 i was able to install everything fine, and everything works. but i cant seem to get the horn to beep when arm/disarm/activation  i know i need a relay/s , diode, etc... just not sure which wires go where and to what on the relay/s, which way diode goes, and the such... i'm not sure if this will pulse byitself , but im sure i need to hook it up to a light flash signal also, just unsure where it goes on the relay???

i did search here and on the net and ive tried about 5 different ways and all do not work. i know i am doing something wrong. thanks for any help you can provide,,, this is for a honda civic with a negative horn setup..

posted_image

posted_image

thanks for all the help....

Jackie




Replies:

Posted By: laren5
Date Posted: March 12, 2004 at 8:33 AM

Hi,

I think the yellow / white horn honk output of your alarm only activates when your alarm goes off.     I am not sure about his, but I think when you arm and disarm only the sirene will beep and no horn honk.   

Get a 5 pole SPDT relay.   

Connect as follow:

#85 : yellow/white horn honk

#86 : positive (+)

#30 : to your (-) horn trigger

#87 : negative (-)

You have to test if you trigger this horn honk wire of the car and verify if indeed that it sounds the horn.    Sometimes this trigger wire only works when the car is started or in ignition (closed circuit).    sometimes you have to go directly to the horn itself.    You just have to test it to make sure it works.

With above method your honk will sound when your alarm goes off.

If you want your horn to beep by arming and disarming, then you have to use the outputs of the parking ligts.    And use a relay to isolate the circuit and to trigger the horn.    

But it is nicer to arm and diarm the car and just to hear the siren beeps (clifford has a nice beeping sound)

Good luck



-------------
Clifford Alarms




Posted By: cxSHOE
Date Posted: March 12, 2004 at 10:19 AM

hey laren5,

ok the 5 pole relay looks like this correct?   

 posted_image

if so is #87 still a ground connection and what about #87a? < what wire goes there.

 thanks ill see what happens today...





Posted By: laren5
Date Posted: March 12, 2004 at 4:07 PM

Hi,

87a and 87  are almost the same.   You can think of it as a splitting.   the current can go to either one.     It is either 87a or 87.   When the relay (coil) is energized then the current from 30 goes to 87a and when it is not charged the it goes to 87.     The best thing to do in order to understand relays is to open one up and play with it,  then you can actually see how it works and hoe it gets energized.     It is a litle bit dificult to explain in typing.   Just play with it and have fun.

In your case,,,,just leave 87a blank.

Relays you can hook up different ways.     Here is another way, that gives the exactly the same result:

#85 : postive (+)

#86 : yellow/white horn honk

#30 : negative (-)

#87 : to your (-) horn trigger

This way it gives the same result.    



-------------
Clifford Alarms




Posted By: cxSHOE
Date Posted: March 13, 2004 at 10:52 PM
hey i tried it and it didnt work????    and i looked at the wiring diagrams on the clifford website and they show the yellow wire to go to an additional siren , but no mention of a relay, but i know i need one, i wish they would show what to do next.. ???




Posted By: bmf1000d
Date Posted: March 13, 2004 at 11:00 PM
what kind of car are you working on, it may have a postive horn wire

-------------
"Big" Mike
Double Take
Fremont, Ne
remember to check all your wires with a dmm not a test light!!
i take no responsibilty whatsoever for the vailidty of the info nor consequences thereof




Posted By: cxSHOE
Date Posted: March 13, 2004 at 11:18 PM

it i a 93 honda civic... and    i think it is a positive horn but others say it is a negative....

there are black  (-) red(+) and the red+ is hooked up to a dark GREEN/ red wire for the horn... and i tested this wire and it is a constant 12v . so i can only assume it is wired 12v and not negative....





Posted By: cxSHOE
Date Posted: March 13, 2004 at 11:24 PM




Posted By: Velocity Motors
Date Posted: March 14, 2004 at 9:42 AM
HORN TRIGGER----------blue/green ( can also be found blue/red at anti-theft if equipped ) (-) at the steering column

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA




Posted By: cxSHOE
Date Posted: March 14, 2004 at 3:15 PM
im such an idiot.... i was taping into the wrong wire the whole time...... the horn wire was  blue/red   thanks for all the help everyone.




Posted By: bmf1000d
Date Posted: March 14, 2004 at 3:35 PM
Hey it happens but thats what were here for to help and every now and then you need to just take a step back and breath...

-------------
"Big" Mike
Double Take
Fremont, Ne
remember to check all your wires with a dmm not a test light!!
i take no responsibilty whatsoever for the vailidty of the info nor consequences thereof




Posted By: cxSHOE
Date Posted: March 14, 2004 at 3:39 PM

oh you know ,,i almot forgot,,, what about  the diode??

my 12v+ is on the #85 prong  so i know it has to go to #85 and #86 with the bar on the #85 side.  do i just solder it right to the prongs.





Posted By: bmf1000d
Date Posted: March 14, 2004 at 3:42 PM
No put it on the wire if you heat the relay it will melt inside and cause bad short...

-------------
"Big" Mike
Double Take
Fremont, Ne
remember to check all your wires with a dmm not a test light!!
i take no responsibilty whatsoever for the vailidty of the info nor consequences thereof




Posted By: cxSHOE
Date Posted: March 14, 2004 at 3:45 PM
ok   great thanks again. the help was all very much appreciated...





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