TC reported TIMS showed BCU fault followed by wheel slip slide fault with a bit of jerky in train mo vement since departing PSR. ~~~~~ CCCHECKED FOUND BRAKE PRESSURE APPLIED AT COAST.CHECKED BRAKE SHOE ALL RELEASED AT COAST.CHECKED TIMS FC 308,314,330,331,312.CHECKED RECORD PREVIOUSLY ACU FROM 3538 SWAP FOR MONITORING.REPLACED ACU SECURITY CHECKED OK.FUNCTION CHECKED 20 CYCLIC TIMES BRAKE PRESSURE CHECK OK.ALL CAR BRAKE SHOE ABLE TO RELEASE AT COAST AND SYN.PHYSICALLY CHECK BRAKE SHOES ABLE TO RELEASE OK.CHECKED BOGIE BASE PRESURE SAME AS ACU PRESSURE OK. IBRAHIM/BUDIMAN  30.06.2021 OLD ACU S/N 1302-050 NEW ACU S/N 1034-012 NOTIFICATION 2290619 TO RSW