Correct answer
It never includes sensors connected to control units.
It is incorrect to claim that it never includes sensors. Modern systems can use sensors connected to control units; for example, stability control receives wheel-speed and steering-angle data. Lighting and charging systems also have electrical components. Do not confuse the vehicle’s electrical system with the engine alone.
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It can include charging-system components.
It can include circuits that supply the lighting.
It never includes sensors connected to control units.
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