Daze Posted October 23, 2011 Share Posted October 23, 2011 Hey guys, My alarm has suddenly started going off on its own over the course of this evening. Started at about 6pm, thought it was strange so just re-locked it with the fob and thought nothing more. Went for a drive, about 40-mile round trip, all good. Got back home, then a couple hours after being home, alarm goes off again. I re-lock it again with the fob and it stops. 20 mins later, off again Neighbours must be getting annoyed. I've done some searching for disabling the alarm, everything I've tried doesn't seem to work. Its now 2am and its still randomly going off every 15-20 mins!! I've tried.. - Lock with the key in the door - alarm went off shortly after. - Disconnected bonnet sensor - alarm went off shortly after. - DOUBLE checked for moths/spiders, can't find anything. I've looked through the owners manual, can't find anything about the alarm at all in there? Done about 45 mins of Google searching trying to find a way of just disabling the alarm all together? I would like to know how - even as a temporary fix!? Arghh, driving me nuts now. Car is UK 54 plate 350z GT. Quote Link to comment Share on other sites More sharing options...
Dblock Posted October 23, 2011 Share Posted October 23, 2011 Disconnect battery? Quote Link to comment Share on other sites More sharing options...
Dblock Posted October 23, 2011 Share Posted October 23, 2011 Unlock car with remote and lock it using the key? Quote Link to comment Share on other sites More sharing options...
Sam Mcgoo Posted October 23, 2011 Share Posted October 23, 2011 Probably a bit late for you now but you could disconnect the siren under the boot carpet and false floor. 1 Quote Link to comment Share on other sites More sharing options...
Ebized Posted October 23, 2011 Share Posted October 23, 2011 Are both windows fully closing when the doors are shut? Quote Link to comment Share on other sites More sharing options...
Daze Posted October 23, 2011 Author Share Posted October 23, 2011 Thanks for the replies everyone. After I posted it I tried another thing - I had the car unlocked, then opened each door and locked it from the inside (using the little lever next to the handle) and closed the door. That seemed to have worked and didn't go off again all night. This morning I have found & disconnected the alarm unit in the boot. Never knew it was located there, thanks for that For now as well, I've also disconnected the sensors in the roof. Re-locked the car with the fob and so far all is good. Obviously this isn't an ideal solution because the alarm is basically useless now, but at least it won't be keeping me up all night until I can source & fix properly!! Thanks again for everyone's help Quote Link to comment Share on other sites More sharing options...
Pilchard Posted February 17, 2013 Share Posted February 17, 2013 I have an 07 doing the same, did you find out what was wrong?, I disconnected battery, put a new one in fob, disconnecting siren, and putting tape over cabin sensors,lol, it was going off while driving unless I covered the sensors?? Quote Link to comment Share on other sites More sharing options...
WhackyWill Posted February 17, 2013 Share Posted February 17, 2013 Alarms are a pain in the ass...people dont bother if they go off they just ignore them... unless it keeps going off and then its classified as a nuisance. Quote Link to comment Share on other sites More sharing options...
jonst205 Posted February 17, 2013 Share Posted February 17, 2013 When I had the same problem, and I think many others too, it was the bonnet sensor as it retracts ever so slightly off the bonnet when the engine bay cools - so it's always an hour or two after a run. There is a small amount of adjustability in the bonnet sensor mounting or you can just unplug it as a troubleshooting measure. Cheers, Jon Quote Link to comment Share on other sites More sharing options...
glrnet Posted February 17, 2013 Share Posted February 17, 2013 Check the inside of the car for spiders and other insects, unusual at this time of year but they can trigger the alarm if the crawl over the ultrasonic heads inside the car. Quote Link to comment Share on other sites More sharing options...
Guest Posted February 17, 2013 Share Posted February 17, 2013 related, anyone know if can adjust the sensitivity level at all, mine goes off at 3.20 most afternoons when the school bus rumbles by? Quote Link to comment Share on other sites More sharing options...
glrnet Posted February 17, 2013 Share Posted February 17, 2013 related, anyone know if can adjust the sensitivity level at all, mine goes off at 3.20 most afternoons when the school bus rumbles by? are your windows fully shut? Try closing the air vents too, might help, no sensitivity adjustment that I know of Quote Link to comment Share on other sites More sharing options...
Guest Posted February 17, 2013 Share Posted February 17, 2013 Cheers Girnet, air vents, would never have crossed my mind, will try that. Quote Link to comment Share on other sites More sharing options...
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