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Automotive Electrical Systems refers to the complex network of electrical components and wiring found in vehicles, responsible for powering, controlling, and monitoring various functions such as starting the engine, charging the battery, operating lights, and regulating engine performance. Key components include the battery, alternator, starter motor, ignition system, sensors, switches, fuses, relays, and wiring harnesses, all working together to ensure the proper functioning of a vehicle's electrical system. Regular maintenance and troubleshooting of automotive electrical systems are essential for optimal vehicle performance and safety.