Train encountered power fault at rear M1car while arriving station. Reset - ok. Fault recurred depa rting ADM2. Unable to reset at SBW2, CBR2 and YIS2. Slow pic k up. ~~~~~ Train encountered power fault at rear M1 (1678)car while arriving station. Reset - ok. Fault recurred departing ADM2. Unable to reset at SBW2, CBR2 and YIS2. Slow pick up.     #1678 fault code 143.Found K2 stuck due to fusing. 0020 raise to follow up due to no spare. Checked by Loong/Pravin/Kalees/Haiqal. 03/07/20 To replace K2 contactor #1678 K2 contactor replaced.Inverter 1/2 check ok.BCH check ok ,pre-charging resistor checked ok.Carried out limited movement powering ,fault clear. Done by Sateesh/Koh/Jun. 04/07/20