WenmarOpen by Wenmar Pro

Service bulletin T1609A

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 id10084470
Published by NHTSA2016-11-21
Manufacturer's numberT1609A
Manufacturer's date2015-12-11
NHTSA componentENGINE

NHTSA's summary

THIS TEMPORARY REPAIR PRACTICE COVERS THE FLEET COUNT TO CHANGE THE ECM BASE CODE AS A RESULT OF TSB130099 AFTER T1603 HAS BEEN COMPLETED. THIS IS AN UPDATE TO A PREVOUSLY SUBMITTED COMMUNICATION.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Vehicles listed
CUMMINS ISX15

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