Before we can find out how to test car fuses let’s first determine what is a fuse. Fuses are safety devices that shield an automobile’s electric circuits from an excess of current (overloading). A wire that is overloaded could melt or catch fire without a fuse. A separate fuse protects each circuit. Electric power steering and radiator fan circuits, for example, are protected by a number of larger fuses with high Amp ratings. Additionally, there is at least one primary …
