Author Topic: alarm randomly going off  (Read 1246 times)

Connoroh

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alarm randomly going off
« on: May 09, 2019, 07:59:59 PM »
the alarm on my mk5 golf gti keeps randomly going off for no reason. any common faults with the alarm system or ways to stop it?

cheers

Offline neilw

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Re: alarm randomly going off
« Reply #1 on: May 10, 2019, 09:10:18 AM »
Open each door in turn and make sure the internal lights come on. This will check the switches in the door module are working correctly.

On my wife car (New Beetle) it's gone off due to low battery voltage as well.
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Offline muff1991

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Re: alarm randomly going off
« Reply #2 on: May 10, 2019, 10:30:15 AM »
yes, check battery connections and voltage of the battery. if not connected tight enough or voltage is low.. this can cause the alarm to trigger.

as Neil said too.. check the doors are registering as closed (lights go off when shut) and a rare one.. but make sure windows are all the way up.

Offline ljc19630

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Re: alarm randomly going off
« Reply #3 on: May 10, 2019, 10:35:26 AM »
Set fire to the car - no more alarm - problem solved :signLOL:
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Louie

Offline Lucky ducky

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Re: alarm randomly going off
« Reply #4 on: May 10, 2019, 10:52:01 AM »
Had the same problem did a scan with my OBDeleven came up comfort control module fault... So rather than fixing it i turned off the alarm using my OBD job done 30 seconds

Offline Mus sabs

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Re: alarm randomly going off
« Reply #5 on: September 07, 2019, 06:12:25 PM »
Have this same issue battery is good, door switches good, tailgate no water ingress, but still goes off randomly!


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Offline MPS

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Re: alarm randomly going off
« Reply #6 on: Yesterday at 09:40:49 AM »
The alarm unit has it's own backup battery, it is this that fails when it leaks electrolyte over the PCB causing the electronics to do all sorts of weird things - my alarm went off as I was driving!

I sourced a used newer one from eBay, it came off a 2011 Audi A1.
« Last Edit: Yesterday at 09:43:03 AM by MPS »

Offline Mus sabs

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Re: alarm randomly going off
« Reply #7 on: Yesterday at 09:58:16 AM »
Thanks for reply mate

is the alarm unit the siren under the wheel arch?

iv taken that off and it still randomly goes off (lights flash)