Ford Super Duty (1999-2016) :: 2008 F250 - No Cruise Control - Radio / Reverse Sensor And Towing System Error

I recently bought a 2008 F250 with the 6.4 diesel indirectly from a dealership. The truck itself has 220,000ish kilometers, but the engine (as well as the turbos) are Ford reman that had about 12,000km when I bought it and I have only put about 6500km on it. It is already leaking oil but that is for another thread.

The reverse sensors, steering wheel controls and part of the stock 6cd radio have never worked. The towing system has errors as well. The fuel level sensor often has problems reading the new level after I put in fuel, but that is always fixed by disconnecting the batteries and forcing a hard reset.

I figured the steering wheel/cruise control problem was due to either a broken clock spring and/or the brake pressure switch. I replaced both those as well as the airbag because the horn relay failed closed when I put it back in the wheel. It did not fix the problem. The steering wheel buttons still intermittently illuminate, but the radio controls and cruise control buttons do not function regardless. The truck isn't giving any codes either.

The towing system will activate lights and brakes on a trailer as well as set the gain, but it will not detect that it is actually hooked to a trailer. I cleaned the pins, but I haven't looked any further into it. No codes for this as well.

The reverse sensors/system does not work. It will lock itself in "off". I am guessing this is because one or more of the sensors have failed, but I am skeptical that it would be just that given the trucks other problems.

The radio does work, but the auxiliary input/mode will not work. I ran the diagnostics on the radio and on 'Test 1' I got "SELF FAIL B1342 ECU" and "B2477 CONFIG". I tried to clear the codes, but I can't. I think this means the radio is kill.