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.
P204F-00Reductant System Performance
P204FReductant System Performance
P204F-00Reductant System Performance
Manufacturer communications
41Original wording in English
HINO
Supersedes TT-14-025 DX3 SCR RELATED MEMORY RESET PROCEDURE. A subject vehicle may exhibit an illuminated check engine lamp with DTC (Diagnostic Trouble Code) P204F (Malfunction of urea SCR System). The DTC P204F cannot be cleared until the DCU codes have been repaired, cleared and the SCR related memory has been reset with the …
JEEP
Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: **P016F - Closed Loop Fuel Pressure Control At Limit - Pressure Too Low. P025…
RAM
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set: P225D-00 - Nox Sensor 1…
RAM
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set: P225D-00 - Nox Sensor 1…
Check vehicle applicability
77A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Ford | F SUPER DUTY ↗ | Year unknown |
| Ford | F-250 SD ↗ | 2016 |
| Ford | F-250 SD ↗ | 2015 |
| Ford | F-250 SD ↗ | 2014 |
| Ford | F-250 SD ↗ | 2013 |
| Ford | F-250 SD ↗ | 2012 |
| Ford | F-250 SD ↗ | 2011 |
| Ford | F-350 ↗ | 2012 |
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.