As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED A STEERING INOP MESSAGE. AIRCRAFT DIVERTED TO DAY AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND REMOVED AND REPLACED THE NOSE WHEEL STEERING ELECTRONIC CONTROL UNIT USING THE AIRCRAFT MAINTENANCE MANUAL. AIRCRAFT WAS RELEASED FOR SERVICE.