A timing belt or power pump failure would not typically affect the ability to move the steering wheel. The most likely cause of a steering wheel that is difficult to move is a problem with the power steering system. This could be due to a low power steering fluid level, a faulty power steering pump, or a problem with the steering rack.
Some other problems that may be the cause of this are as follows:
-A faulty ignition switch
-Damaged or loose wiring in the steering column
-A problem with the steering lock mechanism
-A damaged steering rack or other mechanical issue
