TIMS showed intermittent BCU fault at car 3629. Train performance - ok. ~~~~~ 3629 TIMS showed intermittent BCU fault. Train performance - ok.  3629 FC 327: BCU speed probe 4 fault. Measured cable to tacho #4 found fluctuating high resistance. Replaced cable at tacho 4. Measured resistance after rectification - OK. Perform brake cyclic test ok, no residual pressure at coast. Limited movement/depot shunting ok.  Aliff/Daniel/Redzwan/Chan SW 45399