you can play with it and try other codes.
there are also 10 20 ..., that have more weight than 11, 21...
if the code is not valid the steering system will give you an error and not work, but you can change to valid code after and the error will go away.
mine has too much weight even at 11, but I never found out why...
probably something was damaged in the rack when the first pump failed. (I had two failed pumps)