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Service bulletin C2046

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 id10144396
Published by NHTSA2018-09-17
Manufacturer's numberC2046
Manufacturer's date2018-08-14
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This Campaign is being issued to address turbo actuator corrosion / water intrusion resulting in an active fault code 1894 in certain chassis. This campaign authorizes certified locations to apply Loctite 290 and Permatex Silicone around the turbo actuator electrical connector and add insulation wrap to the Original Equipment Manufacturer (OEM) air conditioning line to prevent corrosion and water intrusion in the turbo actuator.

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 X15

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