You can trace the circuits to the pcm to make sure no wires are broken, will require a pin out diagram pcm/sensor. Or you can cheat... Get a new rear hub from wherever, but do not take rear hub off car at first, just put new hub connected to plug and see if the light resets when turning car on. If it is the sensor in the hub, you'll know as cel will clear. Then you can replace it. If light doesn't go off you can return hub uninstalled in the box for refund (do it locally).
I actually had a replacement hub (Moog) from factory that had wire broken to plug socket. Didn't know until I replaced the thing and had to do it twice, lol. Lesson learned, worth plugging it in prior to install to check that it is functional.
