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Viper 300 Goes Off By Itself

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=23437
Printed Date: July 23, 2025 at 11:24 PM


Topic: Viper 300 Goes Off By Itself

Posted By: integrator
Subject: Viper 300 Goes Off By Itself
Date Posted: December 27, 2003 at 2:16 PM

My alarm isn't working properly.  When I arm it it always beeps 4 times.  I've also hed it go off by itself on a couple of occasions.  I just bout the car and can't figure out what the problem is.  The purple wire on the alarm box seems to cut.  The kid I bought the car from told me he thinks that it is the hood pin but there is no hood pin.  I'm confused.  I will try to find the wiring diagram and install manual but any light you can shed on the problem would help.



Replies:

Posted By: Teken
Date Posted: December 27, 2003 at 3:04 PM
integrator wrote:

My alarm isn't working properly.


You will have to define this to me.


integrator wrote:

When I arm it it always beeps 4 times.


Sounds like this is a defective zone, and the alarm is bypassing it from causing a false alarm.



integrator wrote:

I've also hed it go off by itself on a couple of occasions.


The sensor is not adjusted properly. Reduce the level of the sensitivity and follow up with impact testing
in all four corners of the vehicle to ensure even coverage is obtained.

If several attempts of adjustments prove not to make a difference, move the sensor and mount it properly.


integrator wrote:

The purple wire on the alarm box seems to cut.


The purple wire is for (+) positive door trigger. The green wire is for (-) negative door trigger which obviously was determined to be correct for your vehicle.

It is also zone 3 on the alarm.



integrator wrote:

The kid I bought the car from told me he thinks that it is the hood pin but there is no hood pin.


I would varify that there is indeed NO hood pin there. If not, I would make sure you do have one installed.

No power = No alarm.


Are you sure the system is not actually beeping 5 times? If it is that is the NPC circuit, which zones out defective sensor or zone.


Regards

EVIL Teken . . .




Posted By: integrator
Date Posted: December 27, 2003 at 5:07 PM
Thanks, I will check these things tomorrow.




Posted By: integrator
Date Posted: December 27, 2003 at 5:10 PM
Oh sorry.  What is the NPC Circuit.  Does this alarm have to have a hood pin to work correctly or are you saying that it's a good idea to have one.





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