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relays for oem arm/disarm?

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=133182
Printed Date: July 14, 2025 at 6:53 PM


Topic: relays for oem arm/disarm?

Posted By: markls
Subject: relays for oem arm/disarm?
Date Posted: January 04, 2013 at 7:31 AM

This is my first post so I hope this question isn't too idiotic. I'm going through some DEI install manuals (Viper 5701, Avital 5303L) and they say the factory arm/disarm (-) should be connected to a relay, even when polarity doesn't need to be changed. Is this a standard requirement? Do factory arm/disarm triggers need that much current? Or am I missing something here? Thanks!



Replies:

Posted By: chev104275
Date Posted: January 04, 2013 at 8:10 AM
What make and model of vehicle ?

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




Posted By: markls
Date Posted: January 04, 2013 at 8:25 AM
None at the moment -- just a general question. The DEI manuals say to always use a relay, so I'm just wondering if the OEM arm/disarm is typically a high current application on most vehicles.




Posted By: Mike M2
Date Posted: January 05, 2013 at 6:58 AM
Usually no relay is required for this. Most arm low current and a straight connection from car to alarm is fine...

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Mike M2
Tech Manager
CS Dealer Services




Posted By: markls
Date Posted: January 05, 2013 at 8:24 AM
Thanks Mike. That's what I thought -- but figured I'd ask in case I was missing something.





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