An ignition coil is a vital element of an inner combustion engine. The coil takes a low-voltage present from the battery and will increase it to a high-voltage present that’s required to create a spark within the spark plugs. And not using a functioning ignition coil, the engine won’t be able to start out.
Testing an ignition coil with a multimeter entails measuring its major and secondary resistance. The first resistance is the resistance of the coil’s windings, whereas the secondary resistance is the resistance of the coil’s output terminal. The specs for the first and secondary resistance might be discovered within the car’s service handbook.