IF YOU ENCOUNTER A 2013-2016 CX-5 WITH DTC P011A WITH OVERHEATING AND/OR NO HEAT FROM THE HEATER, COMPARE THE HEATER PERFORMANCE TO ANOTHER CX-5. IF ANOTHER CX-5 IS NOT AVAILABLE, CHECK THE HEATER CORE FLOW AND IF RESTRICTED, DRAIN/REPLACE COOLANT AND REPLACE THE HEATER CORE. NOTE: IF THE CODE IS SET BY ITSELF, WITHOUT OVERHEATING AND/OR NO HEAT FROM THE HEATER, FOLLOW THE WORKSHOP MANUAL ON MS3 ONLINE.