What is Ignition control and its function in vehicle? All Questions › Category: Automotive Electronics › What is Ignition control and its function in vehicle? 0 Vote Up Vote Down chetan shidling asked 5 years ago I need short information. 1 Answers 0 Vote Up Vote Down chetan shidling answered 5 years ago It provides a method of turning a spark ignition engine on and off. Operates on various supply voltages (battery or alternator). It produces high voltage arcs at the spark plug electrode. It distributes spark to each plug in correct sequence.