P206C
0 owner reports and 51 manufacturer filings across 13 model years from Ford.
Where P206C shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2017 Ford Transit | Engine | 7 | — | |
| 2016 Ford Transit | Engine | 7 | — | |
| 2017 Ford F-250 Super Duty | Power Train | 4 | — | |
| 2017 Ford F-350 Super Duty | Power Train | 4 | — | |
| 2017 Ford F-450 Super Duty | Power Train | 4 | — | |
| 2018 Ford Transit | Engine | 4 | — | |
| 2019 Ford F-250 Super Duty | Engine | 3 | — | |
| 2018 Ford F-250 Super Duty | Engine | 3 | — | |
| 2019 Ford F-350 Super Duty | Fuel/Propulsion System | 3 | — | Fuel pump → |
| 2018 Ford F-350 Super Duty | Fuel/Propulsion System | 3 | — | Fuel pump → |
| 2019 Ford F-450 Super Duty | Engine | 3 | — | |
| 2018 Ford F-450 Super Duty | Engine | 3 | — | |
| 2019 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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P206C by make
The same record, one make at a time: the model years, bulletins and owner reports that name P206C on that maker’s vehicles.
What it gets filed under

51 manufacturer filings name P206C. 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 P206C.
- SSM 50323 Service bulletin2021-12-07 · Engine And Engine Cooling
- Some 2017-2022 F-Super Duty and 2016-2022 F-650/F-750 with 6.7L diesel engines, 2015-2019 Transit with 3.2L diesel engines and 2018-2021 F-150 with 3.0L diesel engines may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P206C in the powertrain control module (PCM). Review of repair data supports that P206C is often the result of incorrect diesel exhaust f
- SSM 49483 Service bulletin2021-01-21 · Power Train
- Some 2017-2021 F-Super Duty and 2016-2021 F650-750 with 6.7L diesel engines, 2015-2019 Transit with 3.2L diesel engines and 2018-2021 F-150 with 3.0L diesel engines may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P206C in the powertrain control module (PCM). Review of repair data supports that P206C is often the result of incorrect diesel exhaust flui
- SSM 47712 Service bulletin2018-12-14 · Engine And Engine Cooling — Exhaust System — Emission Control
- Some 2017-2019 F-Super Duty and 2016-2019 F650-750 with 6.7L diesel engines, 2015-2019 Transit with 3.2L diesel engines and 2018-2019 F-150 with 3.0L diesel engines may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P206C in the powertrain control module (PCM). Review of repair data supports that P206C is often the result of incorrect diesel exhaust flui
- SSM 47110 Service bulletin2018-02-23 · Engine And Engine Cooling — Exhaust System
- Some 2017-2018 F-Super Duty/2016-2018 F650-750 with 6.7L diesel engines and 2015-2018 Transit with 3.2L diesel engines may exhibit a MIL on with diagnostic trouble code (DTC) P206C in the powertrain control module (PCM). This may be due to incorrect diesel exhaust fluid (DEF) concentration. Prior to performing Powertrain Control/Emissions Diagnosis (PC/ED) pinpoint test RJ, confirm DEF concentrati
- SSM 47039 Service bulletin2018-01-26 · Power Train
- Some 2017 F-Super Duty, 2016-2017 F650-750 equipped with 6.7L diesel engines and 2015-2017 Transit equipped with 3.2L diesel engines may exhibit a MIL on with diagnostic trouble code (DTC) P206C stored in powertrain control module(PCM). This may be due to incorrect diesel exhaust fluid (DEF) concentration. Prior to performing Powertrain Control and Emissions Diagnosis (PC/ED) pinpoint test RJ, ens
- SSM 46890 Service bulletin2017-10-30 · Fuel System, Diesel
- Some 2017 F-Super Duty/2016-2017 F650-750 equipped with 6.7L diesel engines and 2015-2017 Transit equipped with 3.2L diesel engines may exhibit a MIL on with diagnostic trouble code (DTC) P206C stored in powertrain control module(PCM). This may be due to incorrect diesel exhaust fluid (DEF) concentration. Prior to performing Powertrain Control and Emissions Diagnosis (PC/ED) pinpoint test RJ, ensu
What P206C means
Source: SAE J2012 / OBD-IIP206C 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 P206C
Source: NHTSA files and the OBD-II standardCan I keep driving with P206C 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.