If you disconnected the steering shaft and did not lock the steering wheel in the center before disconnecting it, and making sure it didn't turn, you most probably broke the spiral cable for the airbag. It houses all the connections for the steering wheel that you mentioned. I have probably replaced a hundred because the spiral cable was not centered after steering component disassembly. Once broken it can not be fixed just replaced. To center it when installing a new one or when there is a question about whether it is centered or not: With the wheels in a straight ahead position, remove negative battery cable, remove driver airbag, disconnect plugs for airbag and switches, remove steering wheel. You see a round black thing with a connector for the switches and two wires for the airbag. The black round thing is the spiral cable, at the top of this is a grey knob, with your finger, lightly, very carefully, wind it clockwise untill it stops, do not use much pressure or you can break it. The knob should be anywhere from the 2 to 6 o'clock position, then you bring the knob back counterclockwise to the 12 o'clock position. This is your starting point. Make TWO(2) complete revolutions counterclockwise making sure the knob stops in the 12 o'clock position. the spiral cable is now centered.