Testing a car fuse is a simple but important procedure that can help you identify and replace a blown fuse, restoring power to your vehicle’s electrical system. Fuses are small, inexpensive devices that protect electrical circuits from damage caused by overcurrent or short circuits. When too much current flows through a circuit, the fuse will blow, breaking the circuit and preventing further damage to the electrical system or components.
There are two main types of fuses used in cars: blade fuses and cartridge fuses. Blade fuses are the most common type, and they are typically found in newer vehicles. Cartridge fuses are older and are less common, but they are still found in some older vehicles. To test a blade fuse, you will need a fuse tester or a multimeter. To test a cartridge fuse, you will need a continuity tester.