As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE TAXI FOR TAKEOFF, THE CREW NOTED A LEFT ENGINE ELECTRONIC CONTROL UNIT (ECU) FAIL WARNING MESSAGE. THE AIRCRAFT RETURNED TO THE GATE. PSA MAINTENANCE WAS DISPATCHED FROM PIT WITH PARTS TO REPAIR THE AIRCRAFT. MAINTENANCE INSPECTED AND REPLACED THE LEFT 1.8 SENSOR, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 73-21-00. OPERATIONAL CHECKS WERE COMPLETED, AND THE AIRCRAFT WAS RETURNED TO SERVICE.