TC reported TIMS showed intermittent BCUfault at front M1 car. ~~~~~ TIMS shows BCU fault FC 308. 330 and 331 fault record. Found 1558 brake slow to release intermittenly. Swap 2558 ACU + Transducer to 1558. Replaced new ACU @ 2558. Pressure transmitter swap from 1558 to 2557. Pressure transmitter swap from2557 to 2558. Function test found SATIS. To be further monitored. N.A SANKAR//14.09.21