TC reported train undershoot platform inAuto mode with brake fault indication on TIMS. TC feedback brake fault self cleared and train proceeded in ATPM mode toheadwall. ~~~~~ CAR #3548 BRAKE FAULT. ACTION: REPLACED ACU AT #3548 DONE-OK. BRAKE CYCLING TEST- DONE-OK. NO LEAKING & NO HUNTING. SECURITY & FUNCTION CHECK DONE-OK.RAGHU/SRIDHAR,04/07/2020 DT CAR ACU S/NO:1934-081(OLD)                :1302-049(NEW) NOTIF NO       :2176506