As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 4969 - DURING TAKEOFF ROLL RECEIVED A RIGHT WING ANTI-ICE CAUTION MESSAGE, CREW DECLARED AN EMERGENCY AND FLIGHT RETURNED TO THE GATE. PERFORMED AN OPERATIONAL CHECK OF THE WING ANTI-ICE SYSTEM, DISCREPANCY COULD NOT BE DUPLICATED.