EMU 561/562 During DT found #1562 BCU fa ~~~~~ To continue rectification.  2562 replaced ACU. Brake cyclic test & limited movement - OK. No air leak & no residual pressure at 'COAST'. Checked all brake pressure within criteria.  Sarma/Kiran 44494 #2562 ACU S/N : OLD : 1301/125 NEW : 1032/043 1562 During DT found BCU fault.  1562 swapped ACU to #2562 & BCU fault transferred. Replaced #2562 ACU but fault remained. Replaced #2562 No.1 transmitter but fault still persisted. OPS 20 raised to follow-up on #2562 BCU fault.  Lee PT/Shafie    44494 #2562 ACU S/N : OLD : 1047/080 NEW : 1301/125