2000 Ram (ABS Problems)

My ABS pump is going crazy, it is constantly running, even when the keys are out of the ignigition. I had to unplug it and now my speedometer odometer doesn't work (b/c it is un plugged) My Truck is a 2000. Did this happen to any one else?

PS it is not the breaks pads, I have already checked them.

Where did you unplug the abs pump from...you could be damaging something....gotta tell me asap

I unplugged the wiring harness on top of the pump.