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Factory theft alarm goes off after 30 seconds!! Any ideas???

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Old 10-17-2010, 11:18 AM
  #1  
tech0925
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Arrow Factory theft alarm goes off after 30 seconds!! Any ideas???

Hello,

I have a 98 GT and have owned it for about a week. I do not know the history on it. When I arm the factory alarm, about 30 seconds later the alarm goes off (horn honking & lights flashing). What could be the causes for this. The alarm even goes off by manually locking the doors as well. Also, is there a way to see if it still has the same factory engine that was originally in the car? If so, how do I check that? I read somewhere that swapping the engine out could cause the problem.

Any help here would be appreciated. Thanks!

Last edited by tech0925; 10-17-2010 at 12:50 PM.
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Old 10-17-2010, 04:47 PM
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MU71L4710N
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well theres no factory alarm on these mustangs. theres only a panic button. so do you have an ACTUAL alarm (aftermarket) or is it just the factory panic button going off?
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Old 10-17-2010, 05:04 PM
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DRAGUL
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Even if the module says ford on it , it is still aftermarket.
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Old 10-17-2010, 05:23 PM
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tech0925
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All I know is it still works off of the original key remote that ford gives you.
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Old 10-17-2010, 05:47 PM
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tdcalhoun89
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I have the same problem with my jeep... no clue what causes it though. I just discount the negative battery cable whenever the jeep is parked.
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Old 10-17-2010, 05:53 PM
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DRAGUL
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I have the one that ford sold but is still considered aftermarket by them. Says ford right on it and it works off the factory remotes. This was sold as a option at the time of purchase. But it was not made by ford or installed by ford. If you have this then it was made by code alarm which audiovox now owns. If you are having problems I would suggest just have it pulled out and a better system put in. This is what I am eventually going to do.
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Old 10-17-2010, 05:58 PM
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tech0925
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Originally Posted by DRAGUL
I have the one that ford sold but is still considered aftermarket by them. Says ford right on it and it works off the factory remotes. This was sold as a option at the time of purchase. But it was not made by ford or installed by ford. If you have this then it was made by code alarm which audiovox now owns. If you are having problems I would suggest just have it pulled out and a better system put in. This is what I am eventually going to do.

Any ideas on how to disarm or disconnect the alarm?
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Old 10-17-2010, 08:13 PM
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DRAGUL
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On mine I can just disconnect the harness to it and the car still starts I just don't have the alarm anymore. You can try just disconnecting it and see what happens. I know on mine it does not have the starter kill function.
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Old 10-17-2010, 09:33 PM
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tech0925
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Originally Posted by DRAGUL
On mine I can just disconnect the harness to it and the car still starts I just don't have the alarm anymore. You can try just disconnecting it and see what happens. I know on mine it does not have the starter kill function.
Can you tell me where to find that and what it looks like. Thanks!
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Old 10-18-2010, 03:36 PM
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DRAGUL
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Assuming it is the ford one inside the car look up around the steering shaft for a black box that says ford on it. Also look for a little white box this is your shock sensor. If you find that you can trace wires back to module.
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