# Service bulletin TSB1700085\-03082

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: 10190749
- Published by NHTSA: 2021\-04\-26
- Manufacturer's number: TSB1700085\-03082
- Manufacturer's date: 2021\-03\-08
- NHTSA component: EQUIPMENT; FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of fault code 5867 \(Aftertreatment Diesel Exhaust Fluid Dosing Unit Relay Feedback\- Voltage Below Normal or Shorted to Low Source\) often leading to unnecessary replacement of Original Equipment Manufacturer \(OEM\) diesel exhaust fluid \(DEF\) pump relay or other components. This is an update to a previous communication.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10190749-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10190749-9999.pdf)

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

## Components

Equipment and accessories, Fuel system

## Vehicles listed

- CUMMINS B6.7
- CUMMINS ISB6.7
- CUMMINS ISL9
- CUMMINS L9
- CUMMINS X15

JSON: [/v1/bulletins/10190749](/v1/bulletins/10190749)

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