So we've had a 09 LMM dually for awhile now that no one can figure out. It started with blowing the DLIS (2amp) fuse randomly it progressively got worse where the fuse would blow as soon as you turn the key on. We were able to throw a slightly bigger fuse in the truck to get it started to get it on the trailer and home. Now the DLIS fuse doesn't blow when the key is turned on and the truck won't start unless you jump the starter. If you jump the starter truck will run great. It's throwing codes P2510,u1041,u0140,P2536. Replaced ignition no change. Replaced TCM. No change. Replaced BCM but can't do the 30 mins key cycle to marry it to ECM. Truck still runs if you jump the starter. Spent countless hours tracing wires. When you turn the key off and open the door the radio and interior lights stay on. You have to disconnect batteries to get them to go off. We are at a loss any help is greatly appreciated!