OPL Monitor Question?

[Tricky]

I have recently had an error C0045-of for the rear left (or is it?) ABS sensor so replaced it and now the code has come back but before I go replacing the hub/reluctor ring, my question is what orientation does OPL Monitor use IE sitting in the car or viewing from the front of the car? and is it different because it was developed in EU so I guess they don't use such terms as nearside and offside, so any input on this welcome as I could have been barking up the wrong side of the car!