adding onto existing tailgate contact
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=123283
Printed Date: May 09, 2025 at 8:37 AM
Topic: adding onto existing tailgate contact
Posted By: phillyfire
Subject: adding onto existing tailgate contact
Date Posted: August 28, 2010 at 1:08 PM
I am trying to add another magnetic contact to a tonneau cover by splicing into a existing tailgate contact
on a DEI alarm system, I bought a no/nc contact tried both sides cant get either to work?
Replies:
Posted By: howie ll
Date Posted: August 28, 2010 at 4:18 PM
Have you tested it first with a DMM and is one side going to ground?
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: phillyfire
Date Posted: August 29, 2010 at 12:14 PM
yes one side of the tailgate switch is going to ground
Posted By: howie ll
Date Posted: August 29, 2010 at 12:19 PM
So did you test the switch first or test it once you'd wired one side to ground and the other to the existing tailgate switch?
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: phillyfire
Date Posted: August 29, 2010 at 12:43 PM
go back to basics if i have one wire coming from the alarm control to the original tailgate switch,
tailgate switch has 2 wires on it one to ground, one to the wire coming from the alarm control
where do i slice into to add other contact
Posted By: howie ll
Date Posted: August 29, 2010 at 1:00 PM
To the alarm side of course.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
Posted By: i am an idiot
Date Posted: August 29, 2010 at 1:00 PM
The wire between the alarm brain and the original switch.
Posted By: phillyfire
Date Posted: August 29, 2010 at 1:05 PM
i worked for a alarm company for ten years (residential / commercial) i know nothing about car alarms
so i would go from single wire coming back to one switch out to other then out of second to ground
Posted By: howie ll
Date Posted: August 29, 2010 at 1:07 PM
Yes. This is so basic I shouldn't need to explain all of this.
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Amateurs assume, don't test and have problems; pros test first. I am not a free install service.
Read the installation manual, do a search here or online for your vehicle wiring before posting.
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