Method for determination of the state of operation of an air conditioning system of a motor vehicle

A method of determining the operating state of an air conditioning system of a motor vehicle provided with at least one display device, wherein estimating the measure of the temperature of the passenger compartment, the temperature set the user, the temperature of the blown air and the blowing temperature, the method comprising the steps of: determining whether the air conditioning system is running, if this is the case, it is determined whether the temperature of the blown air is less than the blowing temperature, if this is the case, it is determined that the air conditioning system is in a low flow state, if this is not the case, it is determined that the air conditioning system in a normal flow condition, it displays the status of certain operating the air conditioning system on the display device.