TC reported TIMS showed BCU fault at front M1 car and brake demand exceeded. TC reported train came to a stop at track circuit E567. Fault self cleared and trai n proceeded in Auto. ~~~~~ 1650 TC reported TIMS showed BCU fault and brake demand exceeded. TC reported train came to a stop at track circuit E567. Fault self-cleared and train proceeded in Auto.  649/650 ER D/L & found FC 309 on #1650 only & the other 5 cars no brake fault. Replaced BCU on #1650. Function test brake pressure - OK. No BCU fault found on any of the cars. All brakes physically apply/release according to brake demand. #1650 BCU S/N : OLD : 14-46-069 NEW : 15-05-144  Hanafi/Aminur/Chan SW 44118