The problem is either a sensor, or your ABS/DSC box still is faulty. If you have a small "Amp clamp" you can lift your vehicle, remove the tires and rotate the rotors while the amp clamp is around one sensor wire. This is done with the ignition on, engine not running. You will see pulses as the magnets pass the Hall effect sensor. This varifys that the ABS/DSC module is supplying power to the wheel sensor, and the sensor is sending pulses back to the box. If one sensor causes no deflection on your meter, then sensor swapping with a known good sensor proves whether the box or the sensor is at fault. This way of testing is non invasive to your system as your not poking DMM test leads into wiring harness's.
Don't start blindly changing sensors! That gets expensive "FAST!" Find the fault, or get someone that can find it for you.
Good Luck
