Which electrical circuit is responsible for activating the starter motor when the ignition key is turned?

Question

DentroTest · Accepted Answer

The correct answer is the Starter circuit (or starting system). This system connects the battery to the starter motor to transform electrical energy into mechanical energy, rotating the crankshaft and allowing the thermal engine to begin operating. It is important to distinguish it from the other options: The Ignition circuit (in gasoline engines) generates the spark at the spark plugs to ignite the air-fuel mixture, but it does not generate the initial mechanical movement. The Lighting circuit is an independent auxiliary system responsible exclusively for the vehicle's lights.

Which electrical circuit is responsible for activating the starter motor when the ignition key is turned?

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