Automobile steering lamp flashing controller and control method thereof

The invention discloses a flash controller of an automobile steering lamp and a controlling method of flash controller. The controller is internally provided with an MCU controlling circuit, a voltage and current sampling circuit and a controlling interface which sets and saves voltage and current characteristics with specific load. The invention can save current parameters under specific voltage loaded by the steering lamp within a working voltage scope of the controller, and adjusts the parameters according to different requirements of the steering lamp loads so as to distinguish open circuit failures of the steering lamp loads (such as an LED lamp load) with small current within the working voltage scope, avoid the disadvantage caused by that the conventional flash controller cannot distinguish the difference in lamp load with small current within the working voltage scope, realize flash of steering signals and main lamp failure indication required by the automobile and meet the functional requirement of the load with small current applied in the automobile steering lamp. The invention is characterized by simple structure, easy realization, convenience and practicality.