As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN CRUISE FLIGHT RECEIVED AVNX MAU 2B FAIL ALONG WITH WIND SHEAR/TERRAIN/ADS 2 FAIL MESSAGES. RAN QRH AND DIVERTED TO DEN, DECLARED EMERGENCY. LANDED WITHOUT INCIDENT. FCND MESSAGE APPEARED ON LANDING. MAINTENANCE FOUND FAULT CODE 45452146CMC. MESSAGES CLEARED ON POWER RESET. MAINTENANCE REMOVED AND REPLACED MAU 2 POWER SUPPLY AND NIC PROC 4 AS PRECAUTIONARY.