how can i sound the horn if alarm armed

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=136045
Printed Date: July 06, 2025 at 11:08 AM

Topic: how can i sound the horn if alarm armed

Posted By: cookiezuk
Subject: how can i sound the horn if alarm armed
Date Posted: February 11, 2014 at 3:50 AM

Morning All

Ive had a look through the threads, cant find an answer.

However, I want to remotely sound the cars horn, to warn away anyone I see near the car.

I have used a accessory output through a relay to sound the horn, but this don't work while the alarm is armed

The alarm I have is a Clifford Concept 470 with InteliStart
Car is a 1981 Austin Mini

Can anyone think of a way I can get a remote output while armed.

Thanks in advance

Replies:

Posted By: chev104275
Date Posted: February 11, 2014 at 7:03 AM

I'm not familiar with the system you are using but does it have an unused aux output or a unused trunk release that you could use to trigger it ?

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If i Can't Install it I Don't need it Joe

Posted By: cookiezuk
Date Posted: February 11, 2014 at 8:14 AM

Thanks for the quick reply

I have used a aux output this only works while the system in disarmed

I tested the trunk release and this is the same
Only outputs while disarmed

Cheers

Posted By: harryharris
Date Posted: February 17, 2014 at 12:52 PM

The secondary horn out output yellow/white only works on full trigger.
What sensors are you using with this unit. Note: Whatever I suggest won't work with the digital prox sensor if you have one installed.
Assuming you've already relayed the above yellow/white to your horn, join the green wire from other sensors to the yellow white.
Note if you've used a 508d instead of the digital prox then it will work but in this case you must use diodes (1n4004)in line on the greens, bands away from the yellow white.

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Test before boxing up.