WenmarOpen by Wenmar Pro

Service bulletin TSB230020

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 id10233022
Published by NHTSA2023-03-20
Manufacturer's numberTSB230020
Manufacturer's date2023-02-06
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of incorrect installation and calibration of VGT electronic actuator. Calibration was done once the installation was done correctly.

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

Electrical system

Vehicles listed
CUMMINS B
CUMMINS ISB
CUMMINS ISL 9
CUMMINS L9

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