So I bought a 97 Limited Edition GC on the weekend, it has a few problems that were trying to get to the bottom of, I'll start by adding the first.

It now starts but cuts out 2/3 seconds later, sometimes it starts and runs fine and I can turn it off and on several times after getting it started. We had no troubles starting it when we went to see the Jeep, again when we loaded it onto the trailer, and again loading it off the trailer. The following morning however, my Dad unlocked it (front doors only, still getting used to the double clicking for all 4) and stuck his hand through to the back doors and unlocked them from the inside out.. I was wondering, could he have triggered some sort of anti-theft device? If so, is there anyway to turn it off or re-set it?