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 ...

Diagnosing a faulty transmission speed sensor is pretty straightforward, as is replacing it, but to diagnose a problem fully, you’ll need to be comfortable using a multimeter to check voltage.

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.