Anti Theft Alarm Going Off In The Heat - Taurus Car Club of America : Ford Taurus Forum
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post #1 of 5 (permalink) Old 04-25-2009, 03:44 PM Thread Starter
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Hello good people i have a 2001 sel dohc. my problem is my alarm goes off when the car is locked sitting outside when the temp is over 70 for 2 hrs. I have replaced the theft switch under the front hood. my car has 140,000 miles on it is this a comon problem?? does anyone know if there is a sensor on the in side of the car i need to change and how to do it. this is my first post please bear with me thanks.
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post #2 of 5 (permalink) Old 04-25-2009, 04:01 PM
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to TCCA. Make sure to check the topic finder link at the top and use the search feature, you'll fine some older threads that might help ya out

Check over the thread about my alarm problem here...lots of good information:

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post #3 of 5 (permalink) Old 07-06-2009, 12:10 PM
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Same problem here- same year, same car. 155k.

The alarm went off (the first week i bought it) at my Dad's house during a hot afternoon, and it went off 3 times this weekend during the hot afternoons (while I was away) It's BLACK, and sits in the sun all closed up (I'd imagine the interior temps would get over 130deg or so...?

I've only had the car a few days, but I've yet to have it happen to me. I assume this is because I have the windows down/moonroof open most of the time...??

I'm have done reading Nick's thread now...hopefully there are some posts about HEAT setting the alarm off, because I am fairly sure that is what the problem is at this time...
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post #4 of 5 (permalink) Old 07-06-2009, 01:00 PM
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Just unplug the trunk latch alarm. Mine was going off in severe cold only.

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post #5 of 5 (permalink) Old 07-31-2009, 05:15 PM
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As a temp. fix you could simply lock the car but pushin down the lock pin/plunger on the door. This locks the car but does not arm the alarm.. locking with the remote or pressing the power lock button on the drivers door (while open) will always set the system..

Also the facotry (ford) alarm sytem is a basic alarm and does not measure heat or anything like that.. when the system is set It "guards" all doors, trunk and hood. If any of them are opened without a "valid" unlock event the system will trigger (flashing hazards-horn honking)

So the problem involves one of your door, hood or trunk sensors thinking that a door hood or truck is being opened when its really closed.. what you have to do is narrow down which sensor it is that bad and get it replaced. Most of time its the hood sensor thats tripping the alarm. the dealership can actually look up the last alarm event and they can scan which sensor set off the alarm last.

hope this helps ;-)
good luck
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