# 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.

- Type: Service bulletin
- NHTSA id: 11018582
- Published by NHTSA: 2025\-05\-27
- Manufacturer's number: LI09.40\-P\-079339
- Manufacturer's date: 2025\-05\-22
- NHTSA component: ELECTRICAL 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

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018582-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018582-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Engine

## Trouble codes named

P2F1D

## Vehicles listed

- 2023 to 2024 MERCEDES\-BENZ AMG C43
- 2023 MERCEDES\-BENZ AMG C43 4MATIC
- 2020 to 2024 MERCEDES\-BENZ AMG CLA45
- 2021 to 2023 MERCEDES\-BENZ AMG GLA45

JSON: [/v1/bulletins/11018582](/v1/bulletins/11018582)

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