FALSE ALARMS M12 GTO 2.5
FALSE ALARMS M12 GTO 2.5
Author
Discussion

Bardolphs

Original Poster:

41 posts

219 months

Thursday 18th September 2008
quotequote all
I've been experiencing a few false alarms on my M12 2.5.

Used the switch on and off the ignition method to retrieve the history and
was presented with :

one flash followed by two flashes repeating

Checked the rear clam switch and it's good. Anyone know if the front clam has a switch ?

There doesn't seem to be any pattern as to when the alarm goes off, it can be minutes or hours.
I've taken to leaving the alarm off while in the garage at home.

Any help will be much appreciated.

Cheers..

rsnoble

356 posts

217 months

Thursday 18th September 2008
quotequote all
iv had the same problem please let me no how you get on?

AMG Merc

11,955 posts

282 months

Thursday 18th September 2008
quotequote all
No front clam switch.

Afeter trying all of the obvious I found that one of my door buttons was'nt pushing in enough on closing so not opening the circuit- one side has a shim (hand built you know). Tell tale-sign is wriggle the door and see if the interior light flickers. Good luck.

Bardolphs

Original Poster:

41 posts

219 months

Thursday 18th September 2008
quotequote all
I'll check the door switches..

Thanks..

node

732 posts

229 months

Thursday 18th September 2008
quotequote all
Could it be your battery is running low? when was the last time you took the car out for a run?

Bardolphs

Original Poster:

41 posts

219 months

Friday 19th September 2008
quotequote all
Door switches are OK. Battery is fully charged.

Does anyone know how to reduce the sensitivity of the internal movement sensors ?

I did wonder if it was the battery conditioner causing the volts to shift about, though it still alarms when it's not connected...

Anyone any ideas ??

AMG Merc

11,955 posts

282 months

Saturday 20th September 2008
quotequote all
Bardolphs said:
Does anyone know how to reduce the sensitivity of the internal movement sensors ?

Anyone any ideas ??
Sure, cover the sensors with black insulation tape - sensitivity then equals zero!

Lakelord

1,756 posts

233 months

Saturday 20th September 2008
quotequote all
Drafts used to set off my alarm in a previous car due to the sensitivity of the sensors. Friend of mine who fits alarms told me to shut the vents before alarming it and never had a repeat of the problem.
Is your car garaged? If not, it may be a similar problem but if it is, do large spiders dwell within? Mooohahaha!

NobleGuy

7,133 posts

244 months

Monday 22nd September 2008
quotequote all
I had false alarms a few back after messing around with the windscreen wiper motor bracket.

It first started to go off randomly after being alarmed, sometimes some minutes after, and then at other times it would be fine. Turns out I dislodged a spade connector on the alarm unit which eventually fell off altogether, making the alarm go off instantly every time I tried to lock it.

Put the connector back on and it's been fine.

mgbond

6,749 posts

261 months

Monday 22nd September 2008
quotequote all
I also had this issue on my 2.5. when you arm the car push and hold the button on the remote down for a few seconds until you hear a beep. This dissables the interior sensors.

However mine still used to go off sometimes very randomly. In the end I took it to a installer of our alarms and it turned out to be the sensors themselves being old analouge type rather than the newer digital. New sensors were sent free of charge and I fitted them my self. never had an issue since.

Bondy

rsnoble

356 posts

217 months

Wednesday 24th September 2008
quotequote all
maybe that is the same problem im haveing with mine. who di you see to source the the new sensors?

mgbond

6,749 posts

261 months

Wednesday 24th September 2008
quotequote all
rsnoble said:
maybe that is the same problem im haveing with mine. who di you see to source the the new sensors?


My nearest installer for autowatch and they sorted it for me. Very nice guys.

Bondy

rsnoble

356 posts

217 months

Sunday 28th September 2008
quotequote all
i have a problem at the noment that when i lock my car the alarm works but the driver door does not ock, i had a problem theother day that the door wouldnt unlock,i had to open the door from the inside, has anyone else had this problem, is there a fix or am i looking at a new lock,