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Diagnostic trouble code

P0031

1 owner report and 14 manufacturer filings across 11 model years from Chevrolet, Jeep, Land Rover, Ram.

PowertrainGeneric OBD-II code14 manufacturer filings1 owner report

Where P0031 shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2016 Land Rover Range RoverEngine And Engine Cooling3—
2022 Jeep CherokeePower Train2—
2022 Jeep CompassElectrical System2—
2018 Chevrolet VoltFuel/Propulsion System—1
2021 Jeep CherokeeElectrical System1—
2021 Jeep CompassPower Train1—
2021 Jeep RenegadeElectrical System1—
2016 Land Rover DiscoveryPower Train1—
2016 Land Rover LR4Electrical System1—
2022 Ram ProMasterElectrical System1—
2021 Ram Promaster CityElectrical System1—

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.

What it gets filed under

Electrical System 7Power Train 4Engine And Engine Cooling 2Fuel/Propulsion System 1Exterior Lighting 1
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What owners said

Source: NHTSA complaint database

Owners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.

Scanned vehicle for codes and found multiple P0489, P0030, P0031, P0132, P0135, P0137, P0443, P0458, P0597, P0598, P06DA, P06DB, and P103C
2018 Chevrolet VoltAug 17, 2026NHTSA owner report

Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names P0031. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.

What P0031 means

Source: SAE J2012 / OBD-II

P0031 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 P0031

Source: NHTSA files and the OBD-II standard

Can I keep driving with P0031 stored?

Nobody can answer that from the code alone, and a site that does is guessing. A steady light generally means the fault was logged and the vehicle is in a reduced-risk mode; a flashing light means stop soon, because a misfiring engine can destroy a catalytic converter in minutes. 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.