Component overview: Function
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 DDE provides the electric charging pressure actuator with a pulse-width modulated signal (PWM signal). The operating range of the signal lies between 10 % and 95 %, whereby 10 % means guide vanes opened and 95 % means guide vanes closed.
The electronics in the charge-air pressure actuator convert the PWM signal into a setting angle and activate the actuator motor.
The charge-air pressure actuator itself is self-diagnosable and reports faults to the DDE.