My ABS fires at 8 miles an hour when braking only. What is the problem.

Thank you for the input! Mr. Done. It is consistent with what others have said. My scanner does not tell me which circuit is dropping out just an ABS error message. I will replace the electric line from the sensor to the Pump as I already replaced the sensor twice with no change. If you send me an email, when I change the wiring and it solves the problem I will be happy to send you a tip, Thx Again and Be Blessed! Amicozzi