Problem: Initially thought replacing the rear wheel speed sensor on top of the differential would make the light go away on a 2007 F-150 XLT

What I've done already.
-Replaced the sensor
-Used the IDS ford computer to clear the code
-Test drove it for 30 minutes and the light is still on
-Reset any codes by disconnecting the battery
-I have gone as far as swapping a different ABS module thinking it was the problem, after it was re-programmed the module checked out and it wasn't at fault.

It must be a wire, all the fuses for the ABS system are fine.

Has anyone had this issue or traced all the wires and found a common problem such as a pinched wire or melted wire between the module and the sensor? From what I have been researching this code B1230
-bad sensor
-sensor grounding out somewhere


Attempted a multimeter test today and didn't get very far.

 

There is also a sensor at each front wheel.