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Service bulletin TSB230016

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 id10233019
Published by NHTSA2023-03-20
Manufacturer's numberTSB230016
Manufacturer's date2023-02-01
NHTSA componentENGINE

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of Fault codes 144, 145 , 2373 and 2374 caused by rubbing of cooling fan belt against the engine wiring harness.

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 B

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