MERCEDES-BENZ · 2025-05-22
Complaint Fault code P2F1D01 The control unit was switched off improperly stored in ETC control unit. Cause This fault is set when there is a voltage demand from the ME, but there was no bus sleep yet. This fault can typically be ignored. It will not set a CEL and doesn't have any influence on the drivability or function of the vehicle. Remedy To clear this fault: - clear the error memory of the vehicle (at least the ETC and ME) - put the vehicle to sleep (lock and wait) and wake up (unlock) - turn ignition ON and read error memory again - DTCs shouldn ́t be present in ETC - no CEL is turned ON - vehicle can be started and driven