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Service bulletin TSB230229

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 id11008514
Published by NHTSA2024-10-04
Manufacturer's numberTSB230229
Manufacturer's date2024-09-30
NHTSA componentENGINE

NHTSA's summary

This Technical Service Bulletin describes the recalibration steps for the engine control module calibration which may falsely detect fault code 3748 (Aftertreatment 1 Intake NOx Sensor - Data Not Rational - Drifted High), resulting in false-positive fault codes being reported.

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

Engine

Vehicles listed
CUMMINS C1000D6RE
CUMMINS POWER GENERATION C500D6RE

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