As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 4158 WAS BEGINNING THE TAKEOFF ROLL WHEN THE FLIGHT CREW RECEIVED A RIGHT ECU FAIL MESSAGE. THE FLIGHT CREW ABORTED THE TAKEOFF AND EXITED THE RUNWAY. THE FLIGHT CREW RESET THE ECU SWITCH AND THE SYSTEM RETURNED TO NORMAL. ANOTHER TAKEOFF WAS MADE WITHOUT INCIDENT.