Hello and thanks for your question in the autoaid community.
This faultcode means: REAR BRAKE PADS wear PLAUSIBILITY
This could come if the sensor isn´t correct connected.
So enclose/disconnect the sensor from the plug and connect it again.
Sometimes the sensors are shortcut inside, then you have to renew this sensor.
These sensors, by BMW, are always renewed if there is any repair at the brakes, its very sensitive.