[rhandwor]

Go to an independent shop with an abs scanner ask for a price to get the codes and trouble shoot if you want to pay for this.
You can check all wires to the wheels and try to find anything broken in the harness.
If you need a new unit do a google search for a rebuilder. Check wiring to the unit. Double check fuses check a manual where they are located.
You can buy a cheap scanner but they only check codes.