TIMS showed BCU fault at bogie 1 and 2 at car 2505. Fault self-cleared at NOV NB. ERS-15 ~~~~~ TIMS showed BCU fault at bogie 1 and 2 a     #2505 Fault code 308,330,331.Found ACU hauting. Cannabalise ACU from #2557 to #2505.Brake cyclic test ok. ACU from #2557-1077-084  Faulty ACU-1310-138 Not: 2194801 Done by Zulq/Asurddin/Saini/Haslan. 31/08/20