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.
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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 wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P249EClosed Loop SCR Reductant Injection Control At Limit - Flow Too High
P249E-00Closed Loop SCR Reductant Injection Control At Limit - Flow Too High
P249E-00Closed Loop Reductant Injection Control At Limit - Flow Too High
Manufacturer communications
19Original wording in English
RAM
Flash: Diesel Exhaust Fluid Control Unit (DCU) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P20BC-00 - Reductant Suction Line Heater Control Circuit High. - in Active or Stored status. …
RAM
"Flash: Def Control Unit (DCU) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P218F-00 - Reductant No Flow Detected. ● P249E-00 - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High…
RAM
Def Control Unit (DCU) Updates "Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P218F-00 - Reductant No Flow Detected. ● P249E-00 - Closed Loop SCR Reductant Injection Control At Limit - Flow Too High. Custo…
CHEVROLET, GMC
This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Lamp being illuminated. They may also comment on multiple transmission issues including harsh or delayed shifts, slip, surge, shudder, noise, whine, growl, shake and/or vibration. As well as the exhaust brake not working or t…
Check vehicle applicability
43A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Chevrolet | COLORADO ↗ | 2019 |
| Chevrolet | COLORADO ↗ | 2018 |
| Chevrolet | COLORADO ↗ | 2017 |
| Chevrolet | COLORADO ↗ | 2016 |
| Chevrolet | EXPRESS ↗ | 2018 |
| Chevrolet | EXPRESS ↗ | 2017 |
| Chevrolet | SILVERADO 1500 ↗ | 2018 |
| Chevrolet | SILVERADO 1500 ↗ | 2017 |
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.