Hey fella, i've got a laserline alarm fitted to my mitsibushi colt.
a couple of years back my remote fob played up and i took it to the lads that fitted it. All he did was turn the igition key and hold a button or two down and maybe turn the ignition key back and it homed back in to the frequency?
Sorry its vague, but thats as much as i can offer you
Mr c, March 2010