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 1 - Terminal 2 @ B227 Gear Position Sensor | The control module input circuit has an internal resistance connected to 5 V. The sensor produces a PWM signal. |
| Signal 2 - Terminal 3 @ B227 Gear Position Sensor | The control module input circuit has an internal resistance connected to 5 V. The sensor produces a PWM signal. |
| Low Reference | Grounded through the control module. |
| Component | Description |
|---|---|
| B227 Gear Position Sensor | The sensor contains a hall-effect sensor and additional electronics. It detects the strength of the magnetic field caused by a magnet that is mounted on the shift shaft in the transmission. |
| K20 Engine Control Module | The control module contains a microprocessor used to process input data to control outputs. 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 control module K20 uses 1 of the switches as inputs to determine the gear selector lever position. The control module K20 uses the gear position sensor information primarily for Active Rev Matching and Active Fuel Management.