Land Rover Repair: Discovery ABS, Trac Control Sensor, hill descent control, traction control

Question
ABS, Traction control & hill descent control lights stay lit on my dash.  Dealer says I have to replace the right front hub & sensor for about $650.  Any way to replace just the sensor?

Answer
You don't need to change the hub, only clean the teeth with ressurized air, and proper clean the sensor's pocket from the rust or any dirt.

Then you have to change the sensor, but only the newer version of sensor should be build in! Which haven't got connector in the wiring. It must be thread to the ABS control module.

Then clear the fault from the modul, and it you finished.
p.s: we never changed the hub, unless it was damaged...