2003 Range Rover HSE l322 with 100k miles. The HDC inactive / air suspension inactive message has been intermittent but finally decided to stay on. I used the RSW solution allcoms and in said open circuit right front wheel speed sensor. Thinking it was a sensor, I swapped the left and right to make sure, but the right still showed as open, eliminating a bad sensor, as it worked fine on the opposite side. I then traced the wires to the abs ecu and tested continuity all the way to the blue connector in the fender well. All is good. I even spliced the sensor right into the wiring just to be absolutely positive. The only thing I can think of now, is that the area the sensor reads in the hub may need a cleaning? Any help is appreciated.