Technical Service Bulletin SB21J001 — 2018 ISUZU N-SERIES
ELECTRICAL SYSTEM:SOFTWARE
Bulletin Details
| TSB ID | SB21J001 |
| Manufacturer | |
| Vehicle | 2018 ISUZU N-SERIES |
| Component | ELECTRICAL SYSTEM:SOFTWARE |
| Communication Date |
Bulletin Summary
An investigation of returned fuel injectors has shown that injectors are being unnecessarily replaced. We have identified a common occurrence of an illuminated Malfunction Indication Light (MIL) with DTC P0172 Fuel Trim System Rich set in the Engine Control Module (ECM). Through the analysis of returned injectors, we have determined the injectors were not the cause of this DTC setting. This DTC may be resolved by reprogramming the ECM with the revised calibration.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2018 ISUZU N-SERIES
SB23-J-001B
ENGINE
IB23-J-001B
ENGINE AND ENGINE COOLING
SB22-J-002
ENGINE AND ENGINE COOLING
SB10K001H
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
SB18-L-002B
FUEL SYSTEM, GASOLINE
IB18-N-003A
ENGINE AND ENGINE COOLING:ENGINE:DIESEL
IB16-J-001B
ENGINE
SB15-J-003A
EQUIPMENT
IB17L001
FUEL SYSTEM, DIESEL
IB11-L-003B
FUEL SYSTEM, GASOLINE