Train stopped with stuck brake indication at Rear M2 car after departing JURA towards BBTSB. STBS op erated. Pax disembarked at BBTSB. Staff (BBT) subsequently i solated the Rear M2 car BIC. ~~~~~ Train stopped with stuck brake indicatio     #2655 Fault code-308/314/328/329/330/331.ER download from ER show #2665 BCP stuck at 0.7bar when at coast.Replace ACU,brake cyclic test,no ACU leak.BCP within criteria.STBS reseal,BIC normalise before check,no re-occurance of stuck brake. ACU-Old s/n: 1523117  New s/n: 1538160 Not: 2238231 raise. Done by Saini/Asruddin/Haslan/Koh.  12/01/21