As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL RT ENGINE ANTI-ICE ANNUNCIATOR ILLUMINATED WITH SWITCH IN THE OFF POSITION. TAKEOFF ABORTED. TROUBLESHOT ENGINE ANTI-ICE SYSTEM, PERFORMED ENGINE ANTI-ICE SYSTEM, FUNCTIONAL CHECK PER CESSNA 560XL MAINT MANUAL 30-11-00-710 SYSTEM FUNCTIONS PROPERLY AT THIS TIME.