Service bulletin WB14-47B
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10126469 |
| Published by NHTSA | 2017-12-22 |
| Manufacturer's number | WB14-47B |
| Manufacturer's date | 2015-01-09 |
| NHTSA component | ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE |
NHTSA's summary
On the vehicles affected by this bulletin, perform a software update of ECM (Engine Control Module) and ACM (Aftertreatment Control Module) to provide improved temperature-related behaviour. The software will also change urea dosing valve behavior at shutdown and key-on. As an additional improvement, replace the urea dosing valve by an improved design. These hardware and software improvements aim to reduce the occurrence of clogging and shorting of the Urea Dosing Valve.
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, Engine, Software
| PREVOST H3-41 | 2010 to 2015 |
|---|---|
| PREVOST H3-45 | 2010 to 2015 |
| PREVOST WE | 2011 to 2013 |
| PREVOST X3-45 | 2010 to 2015 |
| PREVOST X3VIP | 2014 to 2015 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.