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Service bulletin TSB190215-120620

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10170461
Published by NHTSA2020-01-21
Manufacturer's numberTSB190215-120620
Manufacturer's date2019-12-06
NHTSA componentEQUIPMENT

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of potential misdiagnosis during troubshooting fault codes 5914, 5895, 5896, 5897, 5898, 5899, 5911, 6413, 6425, 6426, 6427, 6428, 6429, 6431. Potential misdiagnosis during troubleshooting the following fault codes leading to replacement of non-malfunctioning components or incorrect repair.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories

Vehicles listed
CUMMINS B6.7
CUMMINS ISX12
CUMMINS L9N

Listing a model year does not mean every vehicle of it is concerned: the document says which.