As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A NOSE STEERING FAILURE WARNING OCCURRED, DURING THE TAXI PRIOR TO TAKEOFF. THE AIRCRAFT RETURNED TO THE GATE. OUTSTATION MAINTENANCE INSPECTED AND RE-SEATED THE NOSE STEERING CONTROL UNIT. OPERATIONAL CHECKS WERE COMPLETED, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 32-51-06. THE OPERATIONAL CHECKS WERE SATISFACTORY, AND THE AIRCRAFT WAS RELEASED FROM MAINTENANCE.