DT check found BCU fault 1505. To rectif ~~~~~ DT check found BCU fault 1505. To rectify     3506 FC 307, 301-BCU comm fault, comm error.6. Replace BCU, WDC setting done, Functional check BCP ok. 3505 FC 315 check leveling valve both bogie able to deflate and inflate. 3505 1 shim ,Check AS height found 3505 B1-275 out of criteria. Adjusted to 270, bogie 2 ok. Side finding ACU solenoid RF hunting at EM. Replace ACU and funtional test ok. BCP within Criteria. 1505 C 308, 330, 331, 314, 315 1505 during brake cyclic from coast> EM ok. But from EM>b3>b2>b1 stuck at EM pressure of 2.99. Will slowly goes down when ACU at coast. Swap ACU 1505>2505 fault transfer. Repalce ACU and Function test ok. Preventive change out CP pressure transmitter function check ok . BCP within criteria. 3506 old:1811089 new:1810080 Notif:2560670 3505 ACU DT Old:1034-011 new:1241-044 notif csc:2560669 1505 ACU(M) old:1302-132 new:1024-033 notif csc:2560673 1505 CP S/N:  NOTIF:256071 Done by Saini/Asruddin/Fauzi/Imran 45302