# Service bulletin LI54.10\-P\-079340

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: 11018611
- Published by NHTSA: 2025\-05\-28
- Manufacturer's number: LI54.10\-P\-079340
- Manufacturer's date: 2025\-05\-27
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Complaint Vehicle will not start after charging, HV warning in IC Cause Due to charging error from the charging EVSE the contactors for the DCCU are jammed closed and must be reset via Xentry. Short test found fault code P154B00 in PTCU warning for stuck contactor. Remedy Check for new DCCU \(N116/5\) SW. Perform SW update to DCCU \(N116/5\) via XENTRY. Reset contactors through special procedures through N116/5. If no new SW is available \- Open TIPS case. Please provide HV CUL and QT in TIPS case.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018611-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018611-9999.pdf)

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

## Components

Electrical system

## Trouble codes named

P154B

## Vehicles listed

- 2023 to 2025 MERCEDES\-BENZ EQB 250\+
- 2022 to 2025 MERCEDES\-BENZ EQB 300 4MATIC
- 2022 to 2025 MERCEDES\-BENZ EQB 350 4MATIC

JSON: [/v1/bulletins/11018611](/v1/bulletins/11018611)

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