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Weird alarm behavior

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I've been dealing with an alarm system that consistently beeps once when arming. I have never heard a double beep. Today I tried an experiment. With the top down I armed the system ad got one beep as usual. Then I opened the glove compartment without tripping the alarm. I then opened the storage compartment between the seats. Still didn't trip. The alarm did trip when I opened the door

I find it hard to think that both of these could have failed at the same time. Unit had been working fine before it started acting up. Do these two compartments share an alarm circuit?

Thx, Carlos

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It sounds like you have an alarm system malfunction.  Get the car scanned with a Porsche diagnostics tool like the factory PIWIS or Durametric, specifically looking at the alarm system, there should be stored faults for the last ten beeps you have heard that should point towards the fault. 

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This problem has been going on since last summer. In August '15 (just after the problem started) it was at an indie shop that I trust (Auto Sports System Group in Fairfax VA) that uses a Durametric. They scanned and found no faults. The Durametric, as I understand it, can spot alarm faults but not the open/closed status of the individual alarm zones


For whatever it's worth, this problem came out of the blue months after any work had been done to the car



Edited by cbonilla
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