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Automotive Electrical Systems encompass the intricate network of wiring, circuits, and components that power and control various functions in a vehicle. This category includes the battery, starting system, charging system, ignition system, lighting system, and electronic control units (ECUs) responsible for managing engine performance, safety features, and comfort controls. It involves the maintenance and repair of these systems to ensure optimal vehicle operation, longevity, and reliability. Ignition System Maintenance falls under this category as it deals with the components and procedures required to maintain the system that generates the spark to ignite the air-fuel mixture in an engine's cylinders. Automotive Maintenance, in general, includes the upkeep of all vehicle systems, but within this category, it specifically refers to tasks related to preserving and enhancing the electrical systems' performance and lifespan.