# Service bulletin TSB180046\-041320

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: 10136557
- Published by NHTSA: 2018\-05\-14
- Manufacturer's number: TSB180046\-041320
- Manufacturer's date: 2018\-04\-16
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR

## NHTSA's summary

This Technical Service Bulletin describes the verfication and resolution of Fault Code 1664, 1691, 1922, 2692, 3256, 3376, 3396, or 4449 and/or possible noise coming from aftertreatment diesel oxidation catalyst \(DOC\) as caused by Welding issues found inside inlet tube of aftertreatment DOC causing baffle breakage.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10136557-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10136557-0001.pdf)

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

## Components

Engine, Exhaust and emissions, Catalytic converter

## Vehicles listed

- CUMMINS X15

JSON: [/v1/bulletins/10136557](/v1/bulletins/10136557)

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