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viper 791xv unlock before start

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=124143
Printed Date: May 06, 2024 at 4:21 AM


Topic: viper 791xv unlock before start

Posted By: cloppy
Subject: viper 791xv unlock before start
Date Posted: October 26, 2010 at 10:33 PM

Hello

I will be installing the Viper 791 into a mazda 3 2004

I need to have the car unlock before it starts for the factory alarm then lock up after it starts.

Problem is the Viper doesnot have that feature.

Any ideas?

Thanks and all help is appreciated




Replies:

Posted By: another-kelly
Date Posted: October 26, 2010 at 10:37 PM
viper's factory alarm disarm to your unlock wire, then the viper's -200mA (negative) 2nd starter output to the vehicle's lock wire.



Posted By: another-kelly
Date Posted: October 26, 2010 at 10:41 PM
been a long time since i've worked on a mazda 3, have you tested the following wire to see if it will disarm without unlocking?

FACTORY ALARM DISARM       BLACK/ WHITE (-)       IN DRIVERS KICK PANEL, HARNESS TO REAR OF VEHICLE



Posted By: cloppy
Date Posted: October 26, 2010 at 10:43 PM
but how will that lock the car with the remote when the 2nd neg start willonly lock the doors after start only?



Posted By: another-kelly
Date Posted: October 26, 2010 at 10:48 PM
it will lock the doors when the remote start cranks the starter. as long as you the wait to start isn't being activated (which it won't be for your instance), the car will be unlocked for 2-5 seconds.

activate remote start
parking lights flash
doors unlock due to factory alarm disarm
igntions and accessories turn on
accessories drop and vehicle cranks, as it cranks it relocks the doors


this is the way that it has to be done with the vipers on some of the older vehicles that will only arm/disarm the oem alarm by locking/unlocking


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