As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE TAKEOFF ROLL, THE CREW RECEIVED A CAS MESSAGE FOR LEFT HAND ELECTRONIC CONTROL UNIT FAIL. FLIGHT 4135 ABORTED TAKEOFF. AFTER THE AIRCRAFT CLEARED THE RUNWAY, THE CREW RESET THE ELECTRONIC CONTROL UNIT AND WAS CLEARED FOR ANOTHER TAKEOFF ATTEMPT. FLIGHT 4135 DEPARTED WITH NO FURTHER INCIDENTS.