Recently posted with ABS light showing on dash.Had diagnostic shows following faults; 1. Rear r/h speed sensor S.C to ground/O.C(present)
2.ABS w. lamp S.C to +batt (intermittent) 3.Valve relay O.C (intermittent)

Have replaced ABS sensor,disconnected battery to try and clear memory/ fault-ABS light still showing.Could anyone please explain what faults 2 and 3 mean please and how to rectify them.Car due MOT in Aug but am going away soon so need to get sorted asap.Thanx