TIMS showed BCU not healthy at front M2car. TC did brake status check - ok. ~~~~~ 3721- TIMS showed BCU not healthy at front M2 car.(2721) TC did brake status check - ok.  2721 FC 354. Replaced 2721 speed sensor 3 and conducted self test and limited movement with no further abnormalities. Depot shunting ok. 2721 #3 axle speed sensor: old: Z0281744941D02 new: Z0131926299F01 Notification to CSC: 2520751 Done by: Zulq/Haslan/Asruddin 45173