TIMS showed BCU timer1 WST (time out)at RDT car. ~~~~~ TIMS showed BCU timer  1 WST (time out) Check Tims OBSERVED fc 322-BCU WSP timer 1 activated (time out) multiple time happen.Further check tachogen and wheel condition ok.Replaced new BCU-s/n:1449-097 found BCU fault and FC-309/329/328/330/331/315/314,fault permanent,unable to reset.Replaced another BCU function test ok an fault clear. Dump v/v test ok and BCP within cateria. Done by Koh. 05/06/22 #3650 BCU- New s/n: 1449-097 Old s/n: 1550-315 BCU- New s/n: 1548-327 Old s/n: 1449-097