What was found
WHILE ENROUTE TO KORD THE FLIGHT CREW RECEIVED A NOSE WHEEL STEERING INOP CAUTION MESSAGE. THE CREW FOLLOWED THE QRH AND THE MESSAGE REMAINED. CREW COORDINATED WITH DISPATCH AND ALSO DECLARED AN EMERGENCY WITH ATC. THE CREW CONTINUED TO KORD, LANDED, CONFERRED WITH ARFF INDICATING NO ADDITIONAL CONCERNS AND THEN TAXIED TO THE GATE WITHOUT FURTHER INCIDENT. NO KNOWN ADVERSE PASSENGER REACTIONS OBSERVED. ***AIRCRAFT REMOVED FROM SERVICE*** FIM RESET, MESSAGE CLEARED