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Old 10-11-2013, 04:04 PM
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Alarm system question

Hello everyone,

I did a search on alarm systems and got a couple different things that pertained to what I was looking for. Although some hit topics that drew my attention but not what I was looking for. I have an alarm system on my truck, not sure if its factory or not. I guessing it's not since I have a Centurion conversion. The alarm worked great when I bought the truck, the problem arose when I was replacing the dual flywheel with a single. I took the starter off thinking it need to come off in order to get the transmission off. I had totally forgot that I didn't unhook the battery. The positive wire to the started touched the underside of the truck. None of my fuses blew but when I got everything back together I did notice my truck alarm would randomly go off when armed. I had to pull a fuse that creates a break in the circuit but also prevents me from starting my truck with out it in. I did some tracking down and found this box zipped tied under my dash. I took some photos of my setup.



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Old 10-11-2013, 04:08 PM
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Alarm system question

I found this box under my dash and decided to pull it apart, what I found inside was what I believe the problem.




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Old 10-11-2013, 04:20 PM
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My question is
What is the thing that is circled in red?
What is the yellow thing below it that is circled in blue.

I did notice when I armed the system and moved the plastic zig zag thing away from the yellow piece the alarm would go off.

If anyone can help me explaining how it works I would like to have my alarm back and my remote entry please.

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Old 10-12-2013, 04:59 AM
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That is a dealer installed item and approved by Ford to be on there. A dealer ought to be able to help
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Old 10-12-2013, 06:48 AM
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That is the shock sensor and the piece with the knob sets the sensitivity. I think I have a couple of extras in the shop.
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Old 10-12-2013, 03:09 PM
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I have turned the knob both ways and the alarm still goes off randomly. It only started after the positive wire touched the underside.


Quote:
Originally Posted by 1Dieselman View Post
That is the shock sensor and the piece with the knob sets the sensitivity. I think I have a couple of extras in the shop.
If you had an extra would it be a simple wire up and or if the plug the same hook up and operate. Or is there going to be a problem with the key fob and the brain system?
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Old 10-12-2013, 04:51 PM
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It should plug right in. I"m pretty sure that you can unplug it and everything else will still work, you just won't have the shock sensor feature.
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Old 10-20-2013, 04:27 PM
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My truck had the dealer alarm too. I didn't know it had it til I disconnected the battery to switch out the starter and it wouldn't start. My mechanic pointed it out to me and showed me how to reset it. It also messed with my turn signals. I got pretty tired of that quickly and had a shop take it out and wire it back to original. 2 hours labor...problem solved
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