Let me start by saying that I did read every old post that was found by searching this. My 92 heep is having problems. It will start and run for about 1 second then die. I had my battery unhooked, and of course when I hooked it back up the lights flashed and all that. I have had this problem before, and have always had luck by locking and unlocking the rear door. This does not work anymore, and the secuity system will stay on for a while then go off. I have tried all the doors, with no luck. When I try to start it the security light stays on, which I don't remember ever happening before. I have read several ways to trick the system, and would greatly appreciate more help with exactly how to do this. I have looked at the wires that go to the rear hatch, and am not sure which ones have to be grounded to work. Thanks for taking the time to read this, and I feel stupid for having to ask such a dumb question.