What was found
(CAN) DURING TAKEOFF WITH AUTO-THROTTLE ENGAGED AT AN SPEED OF 60KTS, THE LEFT ENGINE FADEC FAULT CAME ON. THE TAKEOFF WAS ABORTED. THE FAULT MESSAGE DISAPPEARED WHEN THE THROTTLES WERE RETARDED TO IDLE. A 2ND TAKEOFF WAS ATTEMPTED WITHOUT AUTO-THROTTLE. WITH THE ENGINES ON FULL POWER AND BRAKES SET, ALL WAS OK. BRAKES WERE RELEASED AND UPON REACHING 60KTS, THE SAME FADEC FAULT OCCURRED AND THE TAKEOFF WAS ABORTED. TROUBLESHOOTING IS ON-GOING.