Circuit/System Description
WARNING: This page is about a different variant/trim than selected.
| Circuit | Description |
|---|---|
| Control - Close | The output circuit is switched from ground to 12 V to activate the component. |
| Control - Open | The output circuit is switched from ground to 12 V to activate the component. |
| Component | Description |
|---|---|
| K20 Engine Control Module | The control module controls a series of actuators to ensure optimal engine performance. The control module does this by reading values from a variety of sensors, interprets the data and adjusts the engine actuators accordingly. |
| Q38 Throttle Body | The throttle valve is actuated by a bidirectional DC motor. A spring pulls the valve to a rest or default position, in which the valve is almost closed. The throttle actuator motor can push against the force of the spring to open or close the valve. The more current flow through the motor, the more the valve moves. |
The engine control module (ECM) determines the driver's intent based on input from the accelerator pedal position sensors, then calculates the appropriate throttle response based on the throttle position sensors.