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The Alternator is responsible for generating and regulating the alternating current of electricity that powers your vehicle's electronic components.

Once your battery's cold cranking amps powers the starter that turns and cranks your engine to run, the alternator takes over to provide electrical power and voltage to the car's ignition system, the internal CPU that regulates and monitors the various systems throughout the vehicle, which includes the radio, lights, horns, powered windows, GPS, windshield wipers, brake lights, heating and cooling systems and so forth.

It also is critical to charging and maintaining your car's battery so that it will have the power to start this process over again each and every time you engage your car's ignition switch, via a key or in the later models a by pressing the start button.

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Q: What does the alternator control on a 1994 Lexus gs300?
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