Train EB due to obstructed motion at tkcctS509. TC reset EB and proceeded in AUTO to MSP NB. Trai n EB due to obstructed motion at tk cctS509. TC reset EB a nd proceeded in AUTO to MSP NB. ~~~~~ 3682 Train EB due to obstructed motion at tk cct S509. TC reset EB and proceeded in AUTO to MSP NB. CE : 3682 no EB applied n train performance ok.  3682 ER D/L. From IDC logs, PEC & ML1/2/3 propulsion command given but train did not pick-up speed from 0 kph & EB after 9 sec due to obstructed motion. ER shows motor cars P1-P4 no command. Inject voltage & checked resistance on relays TNR2 (7007-5 : 20 ohms), WFR2 (7007-6 : 20 ohms), AMR1 (7007-3 : 40 ohms) & SR (7005-7006 : 75 ohms). Found SR & AMR1 relays fluctuating. Replaced SR & AMR1 relays. Limited movement/depot shunting - OK.  Sarma/Shafie/Anand 45083