The only reason I can think of for it failing is if changing the steering wheel caused the airbag light to come on the dash, which it would unless you took the bulb out or wired in some resistors or something of that nature. I could be wrong though, I don't have an aftermarket steering wheel, just trying to give logical advice.
New rules... deliberate removal of airbag.
True though, my lights were coded out with CLIP.