2501, 1501 Having propulsion fault. To c ~~~~~ 2501, 1501 Having propulsion fault. To c     #2501 & #1501 Checked from Tims showing propulsion fault when train was moving.Uncouple EMU 501 train and move no power fault occur.Suspect powering command line in the coupler pin not respond.Cleaned the coupler pin and limited movement done,shown no power fault,powering ok. Done by Jack/Sateesh/Koh. 27/05/20