Train keep applied EB in Auto mode and ATPM mode. TC feedback TIMS showed obstacle detected when tra in applied EB. However, TC reset EB fault cleared. ~~~~~ 3534 - Train keep applied EB in Auto mode and ATPM mode. TC feedback TIMS showed obstacle detected when train applied EB. However, TC reset EB, fault cleared.  3534 found B/S Obstacle Detector connector was detached. OPS 20 raised to follow-up with replacement of both A/S & B/S cables.  Chan SW/Hanafi 44207 3534 - TO REPLACE A/S & B/S OBSTACLE DETECTOR CABLE.  3534 both A/S & B/S Obstacle Detector assembly replaced. Security/function check - OK. No fault reoccurance during depot shunting.  Isam/Azmi 44208