Nissan Repair: Nissan 200sx 97 ABS Fault Code 03, square wave generators, nissan 200sx

Question
I have a nissan 200sx '97. The ABS light wont turn off, a diagnostic was done and shows the fault code 03 (Rear Sensor open circuit).
Can you please advise on what might need to checked to fix the problem.

Thankyou, Jas.

Answer
Jasmine,

There are square wave generators on each wheel hub.  The one at the back probably has a cut or grounded wire.  It might even be damaged from someone doing the brakes.  So, remove the rear tires and brakes and examine the sensors and the wires leading to them.