Where is the idle speed control unit?

The idle speed control unit is typically located in the engine compartment of a vehicle, often near the throttle body or intake manifold. It may be integrated into the throttle body assembly or exist as a separate component. Its primary function is to regulate the engine's idle speed by adjusting the amount of air entering the engine when the accelerator pedal is not pressed. Accessing it may require removing certain engine covers or components, depending on the vehicle's make and model.