Its probably because I was in denial that it was toast and tried charging it two different ways. then i put it in to see if the little charge it did have would start my truck. which it almost did. then I put it on the start up mode on the charger. more than likely that fried it completely. i found the wiring diagram for it so i will go through it to see i can ohm my way through the system. then see what happens with a new battery....