# Service bulletin TSB220250

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: 10231921
- Published by NHTSA: 2023\-02\-21
- Manufacturer's number: TSB220250
- Manufacturer's date: 2023\-01\-26
- NHTSA component: SERVICE BRAKES, HYDRAULIC; FUEL SYSTEM, GASOLINE; BACK OVER PREVENTION; FUEL SYSTEM, DIESEL; POWER TRAIN

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of instances of Fault Code 1883 or 5715 occuring with Fault Codes 1921, 1922 or 1981. The aftertreatment Diesel Particulate Filter \(DPF\) differential pressure sensor is susceptible to moisture intrusion that can cause false occurences of Fault Codes 1921, 1922 and/or 1981, which will lead to unnecessary aftertreatment DPF replacement. This TSB describes how to properly address this condition.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10231921-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10231921-9999.pdf)

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

## Components

Brakes, Driver assistance, Fuel system, Transmission and driveline, Backup camera

## Vehicles listed

- CUMMINS B6.7
- CUMMINS X12

JSON: [/v1/bulletins/10231921](/v1/bulletins/10231921)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20TSB220250&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10231921&vehicle=Service%20bulletin%20TSB220250)