Service bulletin TSB190022

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 steps for the engine control module calibration for L9 engine powered refuse trucks operating at an altitude greater than 1220 m (4000 ft) which may be incorrect, resulting in fault codes 2639, 1921, or 1922 being set (all fault codes are related to high soot load). This is an update to a previously submitted communication.

The document

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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

Engine

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