P229F
0 owner reports and 30 manufacturer filings across 8 model years from Ford, Ram.
Where P229F shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2018 Ram 3500 | Power Train | 6 | — | |
| 2018 Ram 2500 | Power Train | 4 | — | |
| 2016 Ram 2500 | Power Train | 4 | — | |
| 2016 Ram 3500 | Power Train | 4 | — | |
| 2019 Ford Transit | Engine | 3 | — | |
| 2018 Ford Transit | Engine | 3 | — | |
| 2017 Ford Transit | Engine | 3 | — | |
| 2016 Ford Transit | Engine | 3 | — |
A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
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What it gets filed under

30 manufacturer filings name P229F. Start with what the maker wrote down.
A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P229F.
- 1813022REVA Service bulletin2022-07-20 · Exterior Lighting
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs: P20EE - SCR NOx Catalyst Efficiency Below Threshold
- 21N05 Service bulletin2021-08-31 · Engine And Engine Cooling
- This program extends the warranty coverage of the rear nitrogen oxides (NOx) sensor for twelve months of service, beginning on the date the powertrain control module (PCM) is reprogrammed under Emissions Recall 21 E01. This program only applies if a rear NOx sensor fault is detected an it is related to a diagnostic trouble codes (DTC) P229F identified after 21E01 has been performed.
- 1802321 Service bulletin2021-02-24 · Power Train
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs. P20EE - SCR NOx Catalyst Efficiency Below Threshold
- 18-023-21 Service bulletin2021-02-24 · Power Train
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/PCM) with the latest available software. The customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs. P20EE - SCR NOx Catalyst Efficiency Below Threshold
- 18-061-20 REV. A Service bulletin2020-10-17 · Power Train
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/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:P2706 - MS Solenoid Circuit(Sales Code
- SSM 49065 Service bulletin2020-08-11 · Electrical System
- Some 2011-2020 F-Super Duty, 2015-2019 Transit, 2016-2021 F-650/F-750 and 2018-2020 F-150 vehicles equipped with a 6.7L, 3.2L or 3.0L engine may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P207F, P20EE, P229F, P2201 and/or P24AE. This may be a result of using aftermarket cleaning liquids or tools for the exhaust gas recirculation (EGR) cooler or intake. Ford does not recommend
What P229F means
Source: SAE J2012 / OBD-IIP229F sits in the generic range of the OBD-II standard, so it means the same thing on every vehicle sold in the United States — but WhichTrim does not carry a definition for it and will not invent one. What is on this page is the record: who named it and on what.
A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about P229F
Source: NHTSA files and the OBD-II standardCan I keep driving with P229F stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.