Train encountered power fault at Rear M2car while departing station. Reset at CCKSB, YWTSB and KRJS B to no avail. Train performance was normal. ~~~~~ Train encountered power fault at Rear M2 NL2   Check FC-108/827/821/820,Further check INV1 & 2 ok.BCH OK ,CCD shoe & fuse check ok.Found line breaker pre-charging resistor wire bar was loose and shaky,retightened ok.Conduct no powering test on propulsion system ok.Powering check ok Checked by Sanip/Koh. 01/11/21