As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE EN ROUTE TO ORD FROM LGA, EICAS MESSAGE BRK LT FAULT APPEARED INTERMITTENTLY. RAN THE QRH. REQUESTED THE LONGEST AVAILABLE RUNWAY IN ORD AND EMERGENCY VEHICLES STANDING BY DUE TO THE POSSIBILITY OF UNEVEN BRAKING. SHORTLY THEREAFTER, ATC INFORMED CREW THAT IT WAS DECLARING AN EMERGENCY. CONTINUED AND LANDED, COMPLYING WITH THE QRH FOR A FLAPS FULL LANDING. LANDING AND ROLLOUT OCCURRED WITHOUT INCIDENT. MAINTENANCE REPLACED NR 3 WHEEL SPEED TRANSDUCER IAW EMB 170 MM 32-41-11.