What does a multimeter measure in automotive electric systems?

A multimeter is a vital tool used in automotive electrical systems primarily because it measures voltage, current, and resistance.

In this context, voltage refers to the electrical potential difference between two points in a circuit, which is crucial for diagnosing electrical components and circuits. Current measurement is essential for understanding how much electricity is flowing through the system, which can help identify issues such as shorts or open circuits. Resistance measurements allow technicians to evaluate the integrity of components and wiring, determining if they are functioning properly or if they need to be replaced or repaired.

While other tools are used for measuring temperature, fuel levels, and torque, these functions are outside of the primary capabilities of a multimeter. Thus, the choice accurately reflects the core functions of a multimeter in diagnosing and troubleshooting automotive electrical problems.