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Diagnostic trouble code · Fiat

P0339 on Fiat vehicles

P0339 is named on 8 Fiat model years (2016–2020): 16 manufacturer filings and 0 owner reports in NHTSA’s files, across 500, 500 X, 500e.

Powertrain 8 model years 16 manufacturer filings

Which Fiat model years name P0339

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2020 Fiat 500Engine2—
2019 Fiat 500Engine2—
2018 Fiat 500Engine2—
2018 Fiat 500 XEngine2—
2017 Fiat 500 XEngine2—
2017 Fiat 500eEngine2—
2016 Fiat 500 XEngine2—
2016 Fiat 500eEngine2—

A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.

Engine 8 Back Over Prevention 8
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Fiat filings that name P0339

Source: NHTSA manufacturer communications

Bulletins and campaigns Fiat filed with NHTSA whose summary names P0339. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What P0339 means

Source: SAE J2012 / OBD-II

P0339 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. The record above is what Fiat and its owners have filed about it; the code’s page across every make has the whole file.

From here

Common questions

Source: NHTSA files and the OBD-II standard

Is P0339 a known problem on Fiat vehicles?

It is a documented one: NHTSA's files hold 16 manufacturer filings and 0 owner reports naming P0339 on 8 Fiat model years (2016–2020). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.

Which Fiat models does P0339 appear on most?

2020 500 (2 documents), 2019 500 (2 documents), 2018 500 (2 documents).

Does P0339 on a Fiat mean it is recalled?

No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.