C3239
0 owner reports and 111 manufacturer filings across 24 model years from Ford, Lincoln.
Where C3239 shows up
Source: NHTSA manufacturer communications and complaintsA 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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C3239 by make
The same record, one make at a time: the model years, bulletins and owner reports that name C3239 on that maker’s vehicles.
What it gets filed under

111 manufacturer filings name C3239. 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 C3239.
- SSM 51306 Service bulletin2023-01-19 · Electrical System
- Some 2018-2023 F-150, Expedition, Navigator, Transit, Aviator and Explorer vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0627, P025A, P025B, P00C6, P008A and/or U0109 stored in the powertrain control module (PCM). This may be due to an intermittent or partial disconnect of the harness to the fuel pump control module (FPCM) connector, connector pin push-outs, damaged
- SSM 50841 Service bulletin2022-06-08 · Electrical System
- Some 2018-2022 F-150, Expedition, Navigator, Transit, Aviator and Explorer vehicles may exhibit an illuminated MIL with diagnostic trouble codes (DTCs) P0627, P025A, P025B, P00C6, P008A and/or U0109 stored in the powertrain control module (PCM). This may be due to an intermittent or partial disconnect of the harness to the fuel pump control module (FPCM) connector, connector pin push-outs, damaged
- SSM 50661 Service bulletin2022-04-06 · Power Train
- Some 2018-2022 F-150, Expedition, Navigator, Transit, Aviator and Explorer vehicles may exhibit an illuminated MIL with Diagnostic Trouble Codes (DTCs) P025A, P025B, P00C6, P008A and/or U0109 stored in the powertrain control module (PCM). This may be due to an intermittent or partial disconnect of the harness to the fuel pump control module (FPCM) connector, connector pin push-outs or loose/corrod
- SSM 49618 Service bulletin2021-02-23 · Electrical System
- Some 2018-2021 F-150, Expedition, Navigator, Transit, Aviator and Explorer vehicles may exhibit an illuminated MIL with DTC P025A And/Or DTC U0109 stored in the powertrain control module (PCM). This may be due to an intermittent or partial disconnect of the harness to the fuel pump control module (FPCM) connector, connector pin push-outs or loose/corroded grounds. Inspect FPCM connector, applicabl
- SSM 47926 Service bulletin2019-04-11 · Electrical System
- SSM 47926 - 2018-2019 F-150/Expedition/Navigator/Transit/Explorer - Illuminated MalfunctionIndicator Lamp (MIL) With Diagnostic Trouble Code (DTC) P025A Some 2018-2019 F-150, Expedition, Navigator, Transit and Explorer vehicles may exhibit an illuminated MIL with DTC P025A stored in the powertrain control module (PCM). This may be due to an intermittent or partial disconnect of the harnessto the
- SSM 47257 Service bulletin2018-04-23 · Power Train — Automatic Transmission — Control Module (Tcm/Pcm/Tecm)
- Some 2018 F-150, Expedition, Navigator, Transit and Explorer vehicles may exhibit an illuminated MIL with DTC P025A stored in the powertrain control module (PCM). This may be due to an intermittent or partial disconnect of the harness to the fuel pump driver module (FPDM) connector. Confirm FPDM connector (F-150 C4336, Expedition/Navigator C433, Transit C433, Explorer C3239) is fully seated prior
What C3239 means
Source: SAE J2012 / OBD-IIC3239 is a manufacturer-specific code: the second character is a 3, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.
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 C3239
Source: NHTSA files and the OBD-II standardWhy does this page not define C3239?
Because it cannot be defined honestly. The second character of a trouble code says who owns its meaning, and a 1 or a 3 hands that to the manufacturer. Sites that print one definition for a manufacturer-specific code are showing you one automaker's meaning and hoping it is yours.
Can I keep driving with C3239 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.