# Service bulletin TSB220251

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: 10231609
- Published by NHTSA: 2023\-02\-13
- Manufacturer's number: TSB220251
- Manufacturer's date: 2022\-12\-07
- NHTSA component: FUEL SYSTEM, DIESEL

## NHTSA's summary

This Technical Service Bulletin was issued for Bosch® Aftertreatment Diesel Exhaust Fluid \(DEF\) Dosing Unit Replacement for Fault Code 3559.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10231609-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10231609-9999.pdf)

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

## Components

Fuel system

## Vehicles listed

- CUMMINS L9

JSON: [/v1/bulletins/10231609](/v1/bulletins/10231609)

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