Airbag code B0022?

I just got got my car started after replacing everything on my steering wheel. When I starter the truck I got an air bag code of B0022 usually means there's a fault in the passenger seat belt retractor. I watched some YouTube videos about the code and I didn't find any wires under the passenger seat. What could be the cause of the problem. Noted, my truck is a 1500HD. I have found that some of the things on my truck are like the 2500HD model.