As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF, THE CREW RECEIVED AN ECU FAIL CAS MESSAGE AND ABORTED TAKEOFF. THE CREW THEN EXITED THE RUNAWAY AND THE MESSAGE CLEARED BY ITSELF. THE CREW CALLED MAINTENANCE CONTROL AND THE DECISION WAS MADE TO TRY ANOTHER TAKEOFF ATTEMPT. FLIGHT 4123 THEN DEPARTED WITH NO FURTHER INCIDENTS.