Accelerator pedal module

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 position of the accelerator pedal is reported to the DME/DDE control unit via analog voltage signals. The signals are generated by two pedal sensors in the accelerator pedal module.

The pedal sensors take their 5 V power supply and ground connection from the DME/DDE control unit. Depending on the operating angle, the pedal sensors return various voltages to the DME/DDE control unit. The DME/DDE control unit converts the voltage signals into the pedal sensor position.

The signal of pedal sensor 2 always has half the signal voltage of pedal sensor 1.

The idle, full load and kickdown positions are detected by way of voltages of the pedal sensors.

Fault handling

The pedal sensors are monitored for short circuit and open circuit, as well as for plausibility in relation to one another.