Glossary of Auto Terms

DriverSide's Car Dictionary has the most comprehensive definitions of automotive terms. This auto glossary can help you decipher what your mechanic is fixing and what the purpose or function of the particular auto part or accessory is for. We have taken the mystery out of automotive service jargon, so that you don't have to.

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Relay

A switch that allows a small current in one circuit to control a greater flow of current in another circuit.



See Also:
Starter Solenoid
Resistor
Spark Plug Wire
PCV Valve
Electrolyte
Electronic Sensor
Distributor
Ohmmeter

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