Have a 95 c220 that has several issues that may be related. The abs light stays on and will not reset, the cruise does not function and the speedometer rests at zero. Hooked car up to scanner, and can read the mph on scanner, though speedo never budges... replaced sensor at pumpkin and both front sensors... also replaced the over-voltage relay. verified the speedo motor actually functions via cluster removal... don't know where the wire for the speedo signal drops it voltage though. Anyone seen anything similar to this before? Trying to cut troubleshooting time down as much as possible, since I already have a few hours and dollars in it. Thanks in advance...