Door Problem

So here it is I have a 2001 Mitsubishi Eclipse gs 2.4l manual tranny....It has a black widow bw3000 security system installed on it. The problem is that the door locks at random decide they want to unlock the car. I have taken the alarm system off to narrow the problem down to the car itself. I can not do anything to duplicate the doors unlocking and it is never the same time of day or anything. It is a pretty big problem.
ps. when the alarm was on it stayed armed even tho the doors decided to unlock..
ps. the car has been in mine for almost a year and worked perfectly fine for most of the time. when the problem came up nothing had been done to the car for a while.
 
Can anyone help me please

Relay maybe?

reset your ecu

I think that im gonna get a the relay before i reset my ecu...What would reseting the ecu do anyways?

also i have found that it doesnt just unlock a certain door it unlocks both doors if that helps. I had it over the weekend and i did some tests on it and for 2 days the doors were locked and car was not driven :S unfortunately for me...when i was dismised from school today what do i see when i get to the parking lot but my doors unlocked again and the alarm still armed...

I thank you spyder i have reset my ecu and am hoping for the best the preformance of the car in general has boosted up entirely.

Just a status up date the car is doing good....had it sitting in the parking lot for 6 hours and it didnt unlock i will confirm that the problem is fixed as it will be sitting over night thank you guys for all the help resetting the ecu seemed to fix the problem.