ISUZU
CB23-L-001
Manufacturer communications
- Publication date
- 2023-11-03
- Received by NHTSA
- 2023-12-05
- NHTSA record numbers
- 10246226
Manufacturer summary
Original wording in English
IN SOME 2021MY ISUZU F-SERIES VEHICLES, OPERATORS MAY EXPERIENCE AN ILLUMINATED CHECK ENGINE MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) P2201 NOX SENSOR CIRCUIT PERFORMANCE SENSOR 1 AND/OR DTC P20EE DIESEL EXHAUST FLUID (DEF) SYSTEM NOX TRAP LOW EFFICIENCY SET IN THE DEF CONTROL UNIT (DCU). WE HAVE DETERMINED A DCU CALIBRATION ERROR IS CAUSING THIS DTC TO SET. THEREFORE, THIS DTC MAY BE RESOLVED BY REPROGRAMMING THE DCU WITH A REVISED CALIBRATION.
Reported code forms
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| Make | Model | Model year |
|---|---|---|
| Isuzu | F-SERIES | 2021 |