faulty door sensor?

the door open indicator light is coming on intermitantly when driving,i have checked all doors are fully shut and the bonnet is fully shut but the light is still coming on.This is causing my alarm to go off when the vehicle is parked up which is annoying both me and my neighbours.
Has anyone else had this problem,i hoping for a quick fix.
Thanks in advance

Maybe a wire with the insulation gone touching the ground somewhere, that could be the problem with the light coming up while driving but when the car is parked, no movement, I don't think that's the cause. Strange.
Good luck with it anyway.