TC reported when train stationary at platform TIMS showed BCU fault at rear M1 car. Train performanc e - ok ~~~~~ 1512-No fault occur during depot shunting. TIMS download FC-308,330,331 on 28/08/2020. Further check BCP-Ok. No abnormalities. Checked all brake shoe release when at coast. Check ACU no leak observed. Check ACU solenoid valve resistance -Ok. Preventive measures C/o ACU. Perfrom brake cyclic test-Ok.    To monitor during M/L service.  Akhbar / Ganesan. 31/08/2020. Old ACU S/No: 1213/089. New ACU S/No: 1002/002. Old Solenoid Valve Resistance Value-1.RC-1.334. 2.RF-1.373. 3.AF-1.367. 4.EM-1.367. 5.AC-1.333. New Solenoid Valve Resistance Valve-1.RC-1.308. 2.RF-1.309. 3.AF-1.316. 4.EM-1.317. 5.AC-1.315.