When your car doesn’t start, often the battery is the culprit. Unfortunately, most vehicle owners do not check their battery until it fails. As preventative maintenance, the suggested best practice is ...

Switch the multimeter to measure resistance at its lowest setting, and test across the fuse. A reading of OL, or significantly higher than 20 ohms, suggests the fuse is blown.

This video covers the essential steps to properly test a car's alternator and diagnose common alternator issues. The guide ...

For automotive circuits, we recommend an auto-ranging meter with at least 20MΩ of internal resistance. Make sure to use the correct multimeter setting for a car battery.