factory alarm disable

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=10087
Printed Date: May 23, 2024 at 3:59 AM

Topic: factory alarm disable

Posted By: saleengt
Subject: factory alarm disable
Date Posted: February 25, 2003 at 8:47 PM

im trying to install an aftermarket alarm, however it does not have an output to turn off the factory alarm what should i do?

Replies:

Posted By: Velocity Motors
Date Posted: February 25, 2003 at 8:55 PM

What year Ford is it ?

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

Posted By: securinu
Date Posted: February 25, 2003 at 8:56 PM

split the unlock output with diodes...

Posted By: saleengt
Date Posted: February 25, 2003 at 8:58 PM

its a 97 mustang gt

Posted By: jrilla
Date Posted: February 25, 2003 at 9:25 PM

Did i miss something or is Jeff psychic? posted_image

If you need to disarm the factory alarm before remote starting, you will need to use something other than the unlock wire. I cant remember if Ford factory security doesnt like the car being remotely started when armed.

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J Rilla

Owner/Installer

Posted By: saleengt
Date Posted: February 25, 2003 at 9:34 PM

its just a basic keyless entry system im trying to install, but if you unlock it without disabling the factory alarm the alarm goes off, there is a wire in the car that is factory alarm disable but i dont know what to use from the alarm since the alarm does not have an output to connect the alarm to the car to disable it, so I was wondering what output to use from the alarm, it basically has lock and unlock, trunk release, ground, and starter interrupt and ignition.

Posted By: Haku
Date Posted: February 25, 2003 at 9:43 PM

Follow Securinu's advice, and run the second wire to the Dark GREEN/ Purple wire in the drivers kick panel. It is a negative pulse to that wire will turn the alarm off. Your output from the alarm should be negative on unlock.

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Hak

Siemens Autostart

Posted By: Haku
Date Posted: February 25, 2003 at 9:50 PM

After reading my post, I dont think it was clear. The output from your keyless entry unit should be negative pulse, If your Mustang did not come with keyless then its a 5 wire lock system. How do you have the lock and unlock wires hooked up? If your using relays for the locks, then split the negative unlock output from the keyless unit BEFORE the relays, diode isolate and run the second wire to the Dark GREEN/ Purple wire in the drivers kickpanel.

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Hak

Siemens Autostart

Posted By: saleengt
Date Posted: February 25, 2003 at 9:51 PM

thanks again everybody for all the help, much appreciated.

-steve

Posted By: Velocity Motors
Date Posted: February 26, 2003 at 5:05 AM

jrilla wrote:

Did i miss something or is Jeff psychic?

If you need to disarm the factory alarm before remote starting, you will need to use something other than the unlock wire. I cant remember if Ford factory security doesnt like the car being remotely started when armed.

With a user name saleengt..... it would have to be a Ford Mustang posted_image

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

Posted By: jrilla
Date Posted: February 26, 2003 at 8:18 AM

Doh! Yep, I was missing something. Forgot to look at his user name.

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J Rilla

Owner/Installer

Posted By: chuckles
Date Posted: February 26, 2003 at 10:42 AM

You can also tap most of your wires in the trunk where the anti-theft module and remote keyless is located. Chuck.