Viper 791XV horn trigger?

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=60938
Printed Date: May 14, 2024 at 8:41 PM

Topic: Viper 791XV horn trigger?

Posted By: jesussalvdr
Subject: Viper 791XV horn trigger?
Date Posted: August 08, 2005 at 12:56 PM

High, I have a 1994 Nissan Altima SE. I have installed a viper 791XV security system on the car. My question is that I would like to change to siren for the factory horn to chirp. The problem is that the 791XV doesn't have a (-) horn trigger, or atleast i can't find it. All it has is the (+) siren output. Any help?

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hey dude

Replies:

Posted By: jesussalvdr
Date Posted: August 08, 2005 at 2:07 PM

any input guys?

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hey dude

Posted By: chungo
Date Posted: August 08, 2005 at 4:17 PM

you can change the sire output

Posted By: alpine0000
Date Posted: August 08, 2005 at 4:18 PM

jesussalvdr wrote:

High, I have a 1994 Nissan Altima SE. I have installed a viper 791XV security system on the car. My question is that I would like to change to siren for the factory horn to chirp. The problem is that the 791XV doesn't have a (-) horn trigger, or atleast i can't find it. All it has is the (+) siren output. Any help?

i take it you arent familair with relays? this is a simple task to change the + siren output on the 791XV to a - output using a relay.

if you arent familair, here you go (this is assuming your factory horn needs a negative trigger input);

pin 85 - hook this to the + siren output from 791XV

pin 86 - ground this terminal

pin 30 - this is your negative output that you will hook up to the factory horn

pin 87 - ground this terminal

Posted By: chungo
Date Posted: August 08, 2005 at 4:29 PM

but dont forget to change the siren output to a pulsed output

Posted By: alpine0000
Date Posted: August 08, 2005 at 4:33 PM

chungo wrote:

but dont forget to change the siren output to a pulsed output

yes, i forgot to add that in my post. good eye!

Posted By: jesussalvdr
Date Posted: August 08, 2005 at 5:46 PM

yes, I already changed the siren output to pulsed setting. Thanks guys for all of your help.

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hey dude