TIMS showed BCU fault at Front M2 car when arriving AMK SB. Fault self cleared.Train performance - o k. ~~~~~ 2547 TIMS showed BCU fault arriving AMK SB. Fault self cleared. Train performance - ok.  2547 FC 331, 330, 308. ER downloaded. Swapped #1547 BCU to car #2547. Replaced #1547 BCU with new BCU. Brake cyclic test - OK. Brake shoes able to release when DMS at COAST.  DanielÁliff/Chan SW 45379 #2547 BCU S/N : OLD : 1813116 NEW : 1819179