Diagnostics An oxygen sensor that’s going bad or has failed altogether won’t always throw a check engine light or trip a diagnostic trouble code.

What Is a Multimeter? A multimeter is an electronic measuring instrument that is used to gauge volts, amps, and resistance from an electrical source. The most common automotive application for a ...

There are several versions of the batteries that are used in today’s vehicles. In this article, we’ll cover the different types of batteries and how to test a 12V car battery with a multimeter.