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Federal filingsHome›Trouble codes› C3239
Diagnostic trouble code

C3239

0 owner reports and 111 manufacturer filings across 24 model years from Ford, Lincoln.

Chassis Manufacturer-specific 111 manufacturer filings

Where C3239 shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reportsParts
2018 Ford ExplorerElectrical System10—Battery →
2019 Ford ExplorerElectrical System9—Battery →
2018 Ford F-150Power Train6—
2018 Ford TransitPower Train6—
2021 Ford ExplorerElectrical System5—Battery →
2020 Ford ExplorerElectrical System5—Battery →
2019 Ford F-150Electrical System5—Battery →
2019 Ford TransitElectrical System5—Battery →
2021 Ford ExpeditionElectrical System4—Battery →
2020 Ford ExpeditionElectrical System4—Battery →
2019 Ford ExpeditionPower Train4—
2018 Ford ExpeditionElectrical System4—Battery →
2020 Ford F-150Electrical System4—Battery →
2020 Ford TransitElectrical System4—Battery →
2021 Lincoln AviatorElectrical System4—Battery →
2020 Lincoln AviatorPower Train4—
2021 Lincoln NavigatorPower Train4—
2020 Lincoln NavigatorElectrical System4—Battery →
2019 Lincoln NavigatorElectrical System4—Battery →
2018 Lincoln NavigatorElectrical System4—Battery →
2022 Ford ExpeditionElectrical System3—Battery →
2022 Ford TransitElectrical System3—Battery →
2022 Lincoln AviatorElectrical System3—Battery →
2022 Lincoln NavigatorElectrical System3—Battery →

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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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.

Ford 16Lincoln 8

What it gets filed under

Electrical System 81 Power Train 28 Fuel/Propulsion System 2

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.

Photo: Compagnons / Unsplash

Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names C3239.

What C3239 means

Source: SAE J2012 / OBD-II

C3239 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.

From here

Common questions about C3239

Source: NHTSA files and the OBD-II standard

Why 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.