Train encountered power fault at rear M2car while arriving station. Reset at DBG SB, CTH SB and RFP SB to no avail. ~~~~~ Train encountered power fault at rear M2     #2618 Fault code 820/821/827.Check CCD fuse,ht ok.Check line breaker L1,L2 ok.K1 & K2 contact tip replace.Further check found pre-charging resistor x 2 burn mark and OL-replace done.Check INV1,INV2 ,BCH,BVE-ok.Conduct propulsion static test ok.Limited movement powering ok. Done by Haslan/Zulq  13/06/22