Had a car parts store run an OBD2 scanner on the Lincoln. The ABS warning light comes on when the car is started. The OBD2 report came back: Left Rear Wheel Speed Sensor Input Circuit Failure.

It looks like there are two ways to go with this:

https://www.oreillyauto.com/detail/c/masterpro-bearing-seal/masterpro-wheel-bearing-and-hub-assembly/mpb1/513196/v/a/5682/automotive-car-2003-lincoln-town-car?q=wheel+hub&pos=6

or


https://www.oreillyauto.com/detail/c/standard-ignition/standard-ignition-2-terminal-abs-speed-sensor/std0/als107/v/a/5682/automotive-car-2003-lincoln-town-car?q=wheel+speed+sensor&pos=0


It looks like the wheel hub assembly comes complete with the wheel speed sensor. which way should I go? all input and advice is appreciated.