Alarm goes off for no reason

It can be any of the car door not got properly locked or the door is locked but the switch is not sensing the door locked.Open and close each door again properly.
Or else its problem with any of switch wiring getting in contact with alarm wiring causing it to happen.And last thing alarm connections needs to be inspected.Its getting short somewhere in between.

There are few helplinks with solutions,to troubleshoot these types of problems.I suggest going through these links.
Click the link below:------Volvo car alarm keeps going off for no reason http://technoanswers.blogspot.in/2012/07/volvo-car-alarm-keeps-going-off-for-no.html
------------------ Alarm keeps going OFF http://technoanswers.blogspot.in/2012/07/alarm-keeps-going-off.html
--------------2009 Toyota Camry: Hood Switch causing Alarm to go OFF? http://whatisbyme.blogspot.in/2012/04/2009-toyota-camry-hood-switch-causing.html
----------------Ford Pickup Alarm will not disengage? http://technoanswers.blogspot.com/2012/01/ford-pickup-alarm-will-not-disengage.html
------------Mitsubishi Diamante: Factory Security Alarm will not go Off http://www.howtorepairguide.com/2012/11/mitsubishi-diamante-factory-security.html
------------Toyota Avalon Factory Alarm will go off? http://repairhelpcenter.blogspot.com/2012/01/toyota-avalon-factory-alarm-will-go-off.html
----------Chevrolet Tahoe Hood open warning on dash and alarm sounds? http://schematicsdiagram.blogspot.com/2011/12/chevrolet-tahoe-hood-open-warning-on.html
-----------These details will help.Thanks.