TC reported RDT car intermittent brake fault and wheel slip and slide when train arriving station. F ault self clear. Train performance - ok ~~~~~ TC reported RDT car intermittent brake f #3510 fault code 327 multiple.Check BCU connector no sign of loose.Found Tacho 4 cable continously pin terminal A to A no good.Direct check tacho 4 ok,no fluactuation.Replace tacho 4 cable and check continunity ok.Conduct dump v/v test ok.Limited movement ok.No W/S/S. #3510-Tacho 4 cable:- Not: 2478505 raise to CSC Done by Rosli/Zulq.  09/04/23