Signal shape and setpoint values
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
The engine control unit reads in the sensor signal and then compares that signal against a template in its memory unit. By comparing the sensor signal against this saved template, the precise position of the camshaft or the deviation is identified.
| Item | Explanation |
|---|---|
| 1 | Intake camshaft |
| 2 | Exhaust camshaft |
| 3 | Intake camshaft signal |
| 4 | Exhaust camshaft signal |
| 5 | Reference mark for top dead center, cylinder 1 (ignition) |
| 6 | Cylinder |
Observe the following setpoint values for the camshaft sensor:
| Variable | Value |
|---|---|
| Voltage range | 6 to 16 Volts |
| Maximum operating current | Less than 15 A |
| Engine speed range | 0 to 4000 rpm |
| Air gap range | 0.4 to 2.0 mm |
| Maximum output current | 20 mA |
| Temperature range | -40 °C to 160 °C |