I haven't read the door switch reset, but knowing alot about airbag systems & how they work, it looks like you have a clockspring coil issue or an airbag issue.
Q1: Did YOU replace the steering wheel or pay a shop to? If you did it, did you disconnect BOTH battery terminals & wait 5 minutes for the system to dicharge voltage BEFORE disconnecting any airbag plugs?
Q2: Did you use the same airbag, or fit one that came with the replacement wheel?
Q3: Was care taken with the clockspring coil, e.g. not turned?
Airbag systems are critical systems that operate on resistance. Usually anything above 4 ohms is considered too high & the component should be replaced.