The lock position of the steering is probably with the wheel 180 degrees from straight ahead. The newer columns only lock in one ( stronger ) place compared to the multiple spots, of the vehicles when the locks were introduced. As the chipped keys came into favor the manufactures started leaving the column locks off .
About the only true test of the column lock is to raise the front end of the Jeep and rotate the steering wheel ; from full left to full right with the key off; to see where the locking up happens.
Charge wire should stay ahead of any draw ? Have you checked the voltage at the Jeep battery , hooked up with the coach running, If the dealer wired it with a fuse , ( the correct way ) the fuse may be blown.
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.