EPC relates to throttle body issues, a faulty ABS sensor, a cracked ABS ring, a bad brake pressure sensor, and maybe a bad brake switch. Hit a pothole or a curb lately? That might cause an ABS ring to fail. It can also be an electrical issue. Any mods there? How about driving the car through deep water?
VAGuy is right about getting a scan done. You can borrow a simple ODB reader from most auto parts stores, or ask if anyone near you has a copy of VCDS.