Hi,
Had a problem with one of the rear speed sensors recently, had to wait weeks to get it changed and in the meantime it looks as if the ABS light has burnt itself out from being permanently on!! (well, had the sensor replaced and no light, even on startup etc)
I've been told I need to replace the whole module, is this correct?

If so, where from and how much?? oh, and is it easy for me to do myself etc
Any help appreciated.
Cheers