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Diagnostic trouble code

P2004

7 owner reports and 61 manufacturer filings across 48 model years from Audi, BMW, Infiniti, Nissan and others.

PowertrainGeneric OBD-II code61 manufacturer filings7 owner reports

Where P2004 shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2016 Nissan RogueService Brakes, Air12
2024 Audi A4Engine2
2023 Audi A4Engine2
2022 Audi A4Engine2
2021 Audi A4Engine2
2024 Audi A5Engine2
2023 Audi A5Engine2
2022 Audi A5Engine2
2021 Audi A5Engine2
2024 Audi Q5Engine2
2023 Audi Q5Engine2
2022 Audi Q5Engine2
2021 Audi Q5Engine2
2020 Nissan AltimaEquipment Adaptive/Mobility2
2019 Nissan AltimaEquipment Adaptive/Mobility2
2017 Nissan AltimaService Brakes, Air11
2021 Subaru CrosstrekVehicle Speed Control2
2024 Volkswagen Golf / GTIEngine2
2023 Volkswagen Golf / GTIEngine2
2024 Audi A3Engine1
2023 Audi A3Engine1
2022 Audi A3Engine1
2024 Audi A6Engine1
2023 Audi A6Engine1
2022 Audi A6Engine1
2021 Audi A6Engine1
2024 Audi Q3Engine1
2023 Audi Q3Engine1
2022 Audi Q3Engine1
2024 Audi Q7Engine1
2023 Audi Q7Engine1
2024 Audi S3Engine1
2023 Audi S3Engine1
2022 Audi S3Engine1
2016 BMW 5 SeriesEngine1
2019 Infiniti QX50Engine And Engine Cooling1
2016 Nissan AltimaService Brakes, Air1
2017 Nissan FrontierEngine1
2019 Nissan KicksElectrical System1
2018 Nissan KicksElectrical System1
2018 Subaru ForesterEquipment1
2017 Subaru ForesterEquipment1
2016 Subaru ForesterEquipment1
2019 Subaru WRXEquipment1
2018 Subaru WRXEquipment1
2017 Subaru WRXStructure1
2016 Subaru WRXStructure1
2023 Volkswagen ArteonEngine1

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

Engine 48Equipment 6Service Brakes, Air 3Engine And Engine Cooling 2Equipment Adaptive/Mobility 2Electrical System 2
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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.

Sixteen trouble codes were stored, including P26A6, P0606, P060B, P2138, P2135, P2122, P2119, P2004, P2005, and P0191
2021 Subaru CrosstrekMay 20, 2026NHTSA owner report
It is a small part which dicates whether the Swirl or tumble control activates which triggers the P2004
2017 Nissan AltimaJun 5, 2025NHTSA owner report
OBDII code reader shows the code P2004, but after clearing the code with the OBDII tool, the check engine light doesn't come back, which should mean the problem P2004 does not exist anymore
2016 Nissan RogueSep 5, 2023NHTSA owner report
On 8-8-22 I had a check engine light(MIL) with a stored code of P2004 which indicated: Intake manifold runner control (IMRC) is stuck in the open position
2016 BMW 5 SeriesAug 12, 2022NHTSA owner report

Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names P2004. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.

What P2004 means

Source: SAE J2012 / OBD-II

P2004 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 P2004

Source: NHTSA files and the OBD-II standard

Can I keep driving with P2004 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.