WenmarOpen by Wenmar Pro

Service bulletin AA0M0

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 id10185452
Published by NHTSA2021-01-11
Manufacturer's numberAA0M0
Manufacturer's date2015-10-19
NHTSA componentEQUIPMENT; ELECTRICAL SYSTEM

NHTSA's summary

1) DPR System (Diesel Particulate Regeneration) manual regeneration may not complete; this occurs when the BCU temporally detects sticking of the CAV (Combustion Air Valve). This mis-detection will cause regeneration to be suspended. In order to avoid this interruption of DPR manual regeneration, enhanced BCU (Burner Control Unit) software is available. 2) Misdetection of P2030 (Burner System Misfire); the BCU monitors the flame temperature to confirm burner ignition occurred correctly. In some cases, a misfire may be mis-detected if the flame is not in direct contact with the sensor. In order to prevent this mis-detection enhanced BCU software is available.

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, Equipment and accessories

Trouble codes named

P2030

Vehicles listed
HINO CONVENTIONAL MODELS2011 to 2014

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