Random alarm sounding

[nia198]

My alarm went off today a few mins after I locked the car for no apparent reason. I unlocked and relocked and 5 mins later the same, and then the same.... The middle time the sounder blipped as I locked it, like one of the doors/boot was open. Is this likely to simply be one of the door pin switches going or could it be somthing else? If so, when it goes is it likely that it could be making a really intermittent connection that is coming and going even when the car is sitting there locked (in a quiet carpark, with no HGVs thumping past or anything like that)? Any other ideas?

Cheers.. Nick

[WOO5IE]

Try checking the switch on the bonnet.

Mine wasnt switching at all and would always bleep from the time I had the car.
It wasnt until there was a thread on alarms and beeps etc that I realised I had a problem

Easy to adjusted and problem solved.

Yours could be switching intermittently. If you are getting a beep then one of the switches is not making contact.

Trev

[Zippee]

Is it a Meta alarm? I had similar symptoms on mine and it was the battery back up in the siren going. Got to a point where it had a mind of its own and would not turn off - not good in the middle of the night with all your neighbours asleep!

[snorky]

On the Meta siren there is a connector to connect it to the rest of the system just down the cable from the horn - you can usually get to it thru the grille. Just follow the cable till you come to a rubber covered bump in the wire. If this connection is a bit stty the horn will go off using it's internal battery coz it thinks someone is trying to disconnect it to steal the car. Wriggle the connection about (whilst wearing ear defenders)to make the connection better or go out in the country ( still with ear defenders on) and pull the connector apart and clean it and plug it back together....

[nia198]

Seems ok again today! Hasn't gone off since I posted. Thanks for the suggestions. I didn't even know there was an alarm switch on the bonnet! I'll keep them in mind for when/if it starts again. Figure unless it's doing it when I try and fix it I wont know if I fixed anything! Am wondering if maybe it was a bit of dirt in one of the door pin switches which has now moved on... Luckily not a problem at home as it gets locked in the garage so no need to set the alarm if I'm worried it's going to go off.

Cheers,
Nick

[nia198]

Ok, it's definately the boot switch. Any ideas on where I can get a new one? Can't see one on tvrspareparts.com or tvrshop.com

Also, how do I get at the switch? There are two screws into the boost release mechanism (star shaped screwdriver heads) I tried unscrewing these and they are pretty tight. Do I just need to twist harder or am I missing something?

Cheers.. Nick

Edited by nia198 on Friday 22 August 00:07