As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE ACFT WAS PUSHED BACK FROM THE GATE FOR DEPARTURE. WHEN THE NOSE WHEEL STEERING WAS SELECTED ON THE NOSE WHEEL STEERING INOP MESSAGE ILLUMINATED. A RESET WAS CARRIED OUT BY THE FLIGHT CREW AND THE MESSAGE CLEARED. AS THE ACFT TAXIIED TOWARDS THE DEPARTURE RUNWAY THE MESSAGE REAPPEARED. MX WAS CALLED TO THE ACFT AND INSPECTED THE NOSE GEAR, THEY DISCOVERED THAT THE ROD END HAD PULLED AWAY FROM THE STEERING ACTUATOR.