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Service bulletin SB23-L-002

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 id10241814
Published by NHTSA2023-09-05
Manufacturer's numberSB23-L-002
Manufacturer's date2023-08-16
NHTSA componentFUEL SYSTEM, DIESEL

NHTSA's summary

Supercedes SB23-L-001: The vehicle’s Check Engine Malfunction Indicator Lamp (MIL) may illuminate with DTC P2201 and/or P20EE set in the DEF Control Unit (DCU). If one or both of the preceding DTCs are present, first follow the diagnostic for the DTC(s) in question. If no mechanical fault can be found during normal diagnosis, follow the service procedure in this bulletin to correct the concern.

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

Fuel system

Trouble codes named

P20EE, P2201

Vehicles listed
ISUZU F-SERIES2021

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