Circuit/System Description
WARNING: This page is about a different variant/trim than selected.
| Circuit | Description |
|---|---|
| 5 V Reference | Regulated voltage supplied by the control module. |
| Signal | The control module input circuit has an internal resistance connected to ground. |
| Low Reference | Grounded through the control module. |
| Component | Description |
|---|---|
| B112 Turbocharger Vane Position Sensor | The sensor is an analog potentiometer that varies its resistance proportionally with the position of the control rod. |
| 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. |
The variable geometry turbocharger includes a ring of aerodynamically shaped vanes in the turbine housing at the exhaust inlet. With changing the angle of the vanes it is possible to regulate the boost pressure. The vanes are rotated by a vacuum actuator which is controlled by a solenoid valve.
The engine control module performs the learn function for the turbocharger vane position automatically in certain intervals.