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Old 06-14-2013, 09:35 PM   #1
Junior Member
Mid Atlantic Campers
Join Date: Jun 2013
Posts: 4
Problem with security system

Hi everyone. Just joined tonight after much time "lurking" this past year. I just got my Roadtrek back from the garage. I had them check out everything since this is new to me. The also put a new compass/temp mirror and back up camera on it. Got it home last week, no problems. Tues. I had a new radio put in it. So here's where I think the problem started...locked it up and at 12:30 or so that night I woke up to horn and lights. I left it unlocked all day but decided to see if it would happen again so locked it up same way that evening. Well, it happened again about 5 am. Gee, I didn't even know it had a security system on it. Yeh, I do now! So do all my neighbors! I talked to the guy that installed the radio and he's confused but am taking the trek in Monday for him to check it. Meanwhile I thought I'd run it by you folks in hopes someone might be able to help me figure this out. Thanks.

99 Roadtrek
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Old 06-16-2013, 10:06 AM   #2
WrongWayRand's Avatar
Forest River Owners Club
Join Date: Jun 2013
Location: Kentucky
Posts: 93
Logically, looking at the last thing to change before the issue arose is the best idea, at least in my mind. I would have them make sure that the power they used is not on a shared circuit with the security system (using the same fuse, wiring, etc.) Vehicle stereo systems usually have one power feed that is tied to an 'always on' circuit, as do security systems, and if they spliced into the circuit for the security system it could be doing something that trips the alarm.

Ideally, any stereo install in a modern vehicle (and I would consider yours modern) will utilize the factory wiring harness, but not every installer will do that - some will cut off the factory plugs and do their own thing because they feel that this is 'better'. The problem is, the word 'better' is very subjective. Your idea of 'better' and my idea of 'better' may mean two very, very different things If these systems are using separate circuits have them disconnect the stereo fully and then test the alarm again to see if it still behaves the same way. If so, you know that ~something~ related to the stereo is the culprit. If the alarm still acts up it does not necessarily rule out the stereo - you may have to have the dealer (or an auto electrical specialist that you trust) verify that the stereo installation did not harm any wiring. Just because the stereo is now fully disconnected does not mean that something they did during installation has not damaged some other system. In order to rule out the stereo and installation completely you'll probably need to have someone who is certified/approved/etc. to work on your alarm system check all of it's systems and verify that it has not encountered a problem.

Electrical issues can be tricky, but they are far from impossible to resolve. You just have to be very methodical and document each system, each test, and each result clearly so that you can rule out one thing at a time. Make/accept no assumptions in this process, do not try/allow shortcuts, and if you have others do the work try to get the most qualified people you can.

- Randy

1975 VW Westfalia camper
2104 Rockwood A122 A-frame
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Old 07-13-2013, 02:43 PM   #3
Junior Member
Mid Atlantic Campers
Join Date: Jun 2013
Posts: 4
Thanks for the info, Randy. I think they got it fixed. At least when I lock it with the fob it doesn't set the alarm system off! I'm sure my neighbors appreciate that! Now if this rain would just stop for a few days and I can break away for a couple of days maybe the "boys" and I can try it out! Camping in the backyard just isn't going to do it! This forum rocks! I appreciate all the great information. Maybe someday I won't be a newbie anymore!!
99 Roadtrek
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Old 07-14-2013, 07:08 AM   #4
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Damon Owners Club
Workhorse Chassis Owner
Join Date: Mar 2009
Posts: 21,176
One thing that can set off a vehicle security system is a nearby electro-magnetic pulse.. This can happen in some cases just from starting a nearby car (Adjecent slot in a parking garage). Yet another is a high power radio transmitter. epically if it is an illegal CB "linier" (In quotes because linier is the one thing they tend not to be) that is splattering all over the radio frequency spectrum. (Something real linears do not do)
Home is where I park it!
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