2007 Chevrolet Silverado ABS and emergency light on

My 07 new body style is showing service trailer brakes in the DIC window and the ABS and Emergency brake lights are on all the time. Problem started at the begging of a 1200 mile trip from western Or. To Eastern Colo. Towing a 10,000 pound load on my gooseneck trailer. Just prior to starting my trip I did notice a few drops of water dripping from under the dash in the area of the factory installed brake controller it had been raining extremely hard that day and I paid little attention to the leak. When I got home from the trip I started searching the forums for ideas and I did the following, I checked all the wiring, grounds, and connectors I checked for play in the front hubs I pulled the hubs of and cleaned and reinstalled the speed sensors During all this inspection I found a leaking oil cooling line, a leaking axel seal (right rear) and cracks in the brake pads Which was probably a result of driving with out ABS or trailer brakes.(The trip started late on Friday and ended late on Sunday in very rural parts of both states=no mechanics available) Nothing I did resolved the problem so I took it to the dealer to have the problem diagnosed and for $102.00 they gave me 2 codes and no explanation. First code is DTC C0558 s00 set current in EBCM second code is DTC C0561 sf1 set in trailer brake control module. Also says checked ED power and ground circuits to ECBM for wiring faults OK found ECBM to be internally malfunctioning causing concern. I replaced the brake controller with an after market brake controller part #90195 following instructions that required running a new 12 ga blue wire from new controller to back of truck and cutting old blue wire and connecting new wire to the blue wire going to the trailer plug, and using the factory wires supplied by GM for after market controller. Nothing changed still have all the same problems that I started with. Can you help? Thanks R.P.