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Service bulletin LI09.40-P-079339

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11018582
Published by NHTSA2025-05-27
Manufacturer's numberLI09.40-P-079339
Manufacturer's date2025-05-22
NHTSA componentELECTRICAL SYSTEM; ENGINE

NHTSA's summary

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

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine

Trouble codes named

P2F1D

Vehicles listed
MERCEDES-BENZ AMG C432023 to 2024
MERCEDES-BENZ AMG C43 4MATIC2023
MERCEDES-BENZ AMG CLA452020 to 2024
MERCEDES-BENZ AMG GLA452021 to 2023

Listing a model year does not mean every vehicle of it is concerned: the document says which.