Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Narrow by vehicle
A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer communications
3Original wording in English
CHEVROLET, GMC
This informational bulletin provides information to dealership personnel on identifying Duramax Diesel overpower engine breakdown or non-function due to aftermarket power-up devices vs. non overpower engine non-function of pistons, cylinders, valve train components, and DTC P003A or P111D set.
CHEVROLET, GMC
This informational bulletin provides Information on Identifying Duramax Diesel Overpower Engine Breakdown/Non-Function Due to Aftermarket Power-Up Devices vs Non Overpower Engine Non-Function of Pistons, Cylinders, Valvetrain Components, DTC P003A or P111D Set
GMC
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON IDENTIFYING DURAMAX DIESEL OVERPOWER ENGINE BREAKDOWN/NON-FUNCTION DUE TO AFTERMARKET POWER-UP DEVICES VS NON OVERPOWER ENGINE NON-FUNCTION OF PISTONS, CYLINDERS, VALVETRAIN COMPONENTS, DTC P003A OR P111D SET
Check vehicle applicability
149A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Chevrolet | C SERIES ↗ | 2009 |
| Chevrolet | C SERIES ↗ | 2008 |
| Chevrolet | C SERIES ↗ | 2007 |
| Chevrolet | C SERIES ↗ | 2006 |
| Chevrolet | C SERIES ↗ | 2005 |
| Chevrolet | C SERIES ↗ | 2004 |
| Chevrolet | C SERIES ↗ | 2003 |
| Chevrolet | CONVENTIONAL ↗ | 2003 |
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.