anti theft on 99 problem!!

i have a 99 grand cherokee 4.7l and i have a trouble with my bcm hapenning once in a while, it makes all my dash light to stay lighten,and my cluster dosnt work, and the truck starts for a secon or 2 and shut down because my anti theft do not reconise my key (well thats what i think) and after hours....everything get back to normal, like if my bcm do a kind of reset, is there a way to by-pass the original anti-theft, that way i want be stock everywhere when the trouble happen, and did it ever happen to someone else?? thanks in advance,
ps: sorry for my bad english :tongue:
forgot to say, when the trouble happen, i have no elec. windows or elec. lock working nether.

Im having the same issue with my 1993 JGC, i dont have the keyless remote. Never came with it, when I baught my Jeep. I am also looking for a by pass my self. Get back to me if you have any newer clarifications to this issue.
Thank you,
Laloquera

they said to me at the dealler there was no way to by-pass it on a 99, but changed my BCM and everything ok now, hope its for good!