Service bulletin SB25-L-001
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 | 11025201 |
| Published by NHTSA | 2025-11-07 |
| Manufacturer's number | SB25-L-001 |
| Manufacturer's date | 2025-10-08 |
| NHTSA component | FUEL/PROPULSION SYSTEM; ENGINE |
| Manufacturer's system | ENGINE, FUEL, EXHAUST |
NHTSA's summary
SERVICE BULLETIN: THE ENGINE CONTROL MODULE AND THE DIESEL EXHAUST FLUID CONTROL UNIT OF CERTAIN 2025MY N-DIESEL VEHICLES CONTAINED INCORRECT LOGIC THAT MAY UNNECESSARILY CAUSE DTC P2201 NOX SENSOR CIRCUIT PERFORMANCE SENSOR 1 TO SET AND ILLUMINATE THE MALFUNCTION INDICATOR LIGHT. THIS DTC MAY BE RESOLVED BY REPROGRAMMING BOTH ECM AND THE DCU WITH REVISED SERVICE CALIBRATIONS.
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
Engine, Fuel system
Trouble codes named
P2201
| ISUZU N-SERIES | 2025 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.