Alarm Problem Keeps going off randomly - 986 Forum - The Community for Porsche Boxster & Cayman Owners

kingdoz · 03-10-2006, 10:05 AM

Hi Guys,

Im in the UK and own a Porsche Boxter 1999, 2.5 and as far as i know has standard alarm fitted.

It sometimes seems to go off for no reason randomly. Sometimes 5 mins or sometimes even 2 hours after i lock the car (by pressing my top button on key and the car light up twice then hear a beep), and sometimes after 2 hours. Most times alarm is fine, but as its random im to a loss as to why its happens. Sometime it goes off so i open and lock car, then it does it again a few mins later and after a few times of unlocking and unlocking prob goes away for a while until next time...

The previous owner actually warned me to lock the compartment properly behind the hand break as it sometimes happened to him, so i always check that after alarm goes off and it seemed well and truly locked.

Is it the wind? Is it something inside my car? Am i locking it worng? Ive already spend lots of money on repairs to the car so I really dont want to spend lots more taking it into Porsche who will probably not be able to recreate the problem as it happens random and will waste my money.

This is getting to be a serious problem. Im actually considering disabling the alarm altogether as its so annoying...

Any ideas?

Thanks
Doz

denverpete · 03-10-2006, 10:31 AM

It sounds like you are describing two different problems - but your post isn't entirely clear.

Does it tend to "flash twice" and then immediately beep at you? If so, the car is telling you that you have something "open". This is usually the center console box. Make sure it's secure and then try it again.

If after everything is properly closed it still beeps at you (after hitting remote) - then I'd guess that one of the sensors isn't operating properly and is reading "open" when it's actually "closed".

If it randomly beeps at you hours after you've locked it (without using the remote) - then I'm at a loss.

kingdoz · 03-10-2006, 10:37 AM

Hiya - thankf for answer. (ive edited my orginal post since you replied about the storage box).

What i meant was when i lock car, the car lights flash twice and it it beeps quickly and immediately once (which i think is the cars message to tell me its locked), then randomly after 1 hour or after 5 mins the alarm can suddenly go off

TriGem2k · 03-10-2006, 10:46 AM

Any time the alarm beeps with only one click of the key it means there is a "shot" somewhere in your car. Could be an open door, center consle, hood, trunk, radio that isnt installed right...etc. The only time it should beep is if you press the key twice quickly, the lights will turn on pause then turn off with a beep.

kingdoz · 03-10-2006, 10:59 AM

Jeez.

I was so sure that 2 flashes of car lights with quick beep means car is safely locked...

Just to confirm, when i click the big button on key once, to lock car, having 2 flashes of cars sidelights and on the second lightflash a quick beep happens, thats means something wrong? Its alwayd done that since i bought the car a couple of months ago. Surely if that was the case, my alarm would always go off, not just every few days randomly etc... Only thing i can think of is car has a different radio than standard, but would that cause the random alarms?

TriGem2k · 03-10-2006, 11:04 AM

Yes it would, the alarm is looking for the factory radio unit