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Service bulletin TSB190154-090620

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 id10166221
Published by NHTSA2019-10-21
Manufacturer's numberTSB190154-090620
Manufacturer's date2019-09-06
NHTSA componentEQUIPMENT

NHTSA's summary

This Technical Service Bulletin addresses generator sets that are issuing Fault Code 427 when the generator set runs through the key on sequence. This sequence can occur while powering on or after a test run.This was found to be an error on the ECM (CM850) and the solution is in the updated ECM calibration.

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 C

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