horn output?
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=113550
Printed Date: May 09, 2024 at 11:57 PM
Topic: horn output?
Posted By: coolced305
Subject: horn output?
Date Posted: May 02, 2009 at 10:45 AM
I installed a clifford intelliguard 750 on a 06 magnum and im having trouble getting the horn to honk when the alarm is triggered. I dont know if the horn output from the alarm module is bad or if i hooked the horn output wire from the alarm module to the vehicles horn wire wrong. Could someone please give me some insight on this minor problem! Thanks in advance!
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Cedric
Replies:
Posted By: Chris Luongo
Date Posted: May 02, 2009 at 5:40 PM
Where did you connect to the horn wire in the car?
Posted By: coolced305
Date Posted: May 03, 2009 at 3:42 PM
I ran the horn output wire from the alarm module under the hood and connected it straight to the horn wire coming from the vehicle's horns located behind the grille.
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Cedric
Posted By: mikvot
Date Posted: May 03, 2009 at 3:58 PM
The horn output of the alarm is a (-). The horn of the vehicle needs a (+). You will need to add a relay.
86 and 87. 12volts
85 (-) horn output of alarm
30 to vehicles (+) horn wire
87a not used
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Posted By: coolced305
Date Posted: May 03, 2009 at 4:20 PM
 O okay, thankz! What damage would be done by hooking that negative output wire from the alarm module directly to the positive wire of the vehicle's hornz?  ------------- Cedric
Posted By: Chris Luongo
Date Posted: May 03, 2009 at 4:28 PM
You probably haven't yet burned out the horn output from the alarm.
Anyway, with a little testing, you don't need to mess with a relay.
The car already has a factory relay, in the underhood fuse box.
The relay should be listed in the owner's manual under the Fuses section............but, just remove one relay at a time until the horn doesn't work anymore, and then you'll know which one it is.
With the relay removed, there are five terminals there in the fuse box.
Test which one of those five makes a ground when you hit the horn button on the steering wheel. It would be good to have a helper to push the horn button while you test the five terminals with your meter or test light.
Once you figure out which one it is, carefully wrap a wire around the correct terminal on the factory relay, and reinstall it.
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