Service bulletin TSB180056-050820

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.

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of an issue in which the INSITE electronic service tool Image Regeneration History Log is incorrectly recoring "Maximum Diesel Particulate Filter Intake Temperature." The recorded value is lower thant the actual temperature ans is not be used to diagnose effectiveness of the aftertreatment diesel oxidation catalyst (DOC). An engine control module (ECM) calibration code is planned to be developed to resolve this issue.

The document

• NHTSA's copy of the document (PDF)
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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, Engine

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

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