TC reported BCU fault at rear M1 when train stopped at platform. Fault recurred at all stations. Tra in performance normal. ~~~~~ 1544 ER D/L - Done. Adjusted carbody height : A1 = 855mm, B1 = 855mm, A2 = 853mm, B2 = 857mm. BCU all cannon plugs tightened - Done. Depot shunting, no fault occurred. OPS 20 - Replaced A/s pressure transmitter & transducers & function test - oK.  Sarma/Anand/Kiran. 29/08/2020.