As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT AT 66% POWER, WING ANTI ICE FAIL CAUTION LIGHT ILLUMINATED WITH NO ICE CONDITION. MESSAGE CHANGED TO ANTI ICE FAIL ICE CONDITION ON ENTERING ICE CONDITIONS. ALL MESSAGE CLEARED AFTER EXITING ICE COND,LEVELING OFF AND PUSHING POWER LEVERS FWD. CMC/MFD SHOWS WING 2 ANTI ICE LOW PRESSURE. INSPECTED AND CLEANED THE WING 2 ANTI ICE LOW PRESSURE SWITCH. GROUND RAN THE ENGINE IAW AMM 30-00-00-700-802-A/500, OP CHECKED GOOD. OK FOR SERVICE.