As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED LEFT ANTI-ICE CAUTION MESSAGE WOULD NOT EXTINGUISH AT MAX THRUST. CREW ABORTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE TROUBLESHOT AND PERFORMED OPERATIONAL CHECKS OF LEFT WING ANTI-ICE SYSTEM USING AIRCRAFT MAINTENANCE MANUALS. OPERATIONAL CHECKS GOOD. AIRCRAFT RELEASED FOR SERVICE.