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Diagnostic trouble code

P2402

6 owner reports and 226 manufacturer filings across 16 model years from Acura, Mercedes-Benz, Toyota, Volkswagen.

PowertrainGeneric OBD-II code226 manufacturer filings6 owner reports

Where P2402 shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2023 Volkswagen AtlasElectrical System321
2022 Volkswagen AtlasElectrical System32
2022 Volkswagen Golf / GTIEquipment27
2022 Volkswagen TiguanElectrical System163
2023 Volkswagen JettaElectrical System16
2022 Volkswagen JettaElectrical System16
2023 Volkswagen TiguanElectrical System16
2023 Volkswagen TaosElectrical System15
2022 Volkswagen TaosElectrical System15
2022 Volkswagen ArteonEquipment12
2023 Volkswagen ID.4Electrical System12
2022 Volkswagen PassatElectrical System12
2021 Volkswagen TiguanElectrical System3
2022 Acura TLXEngine And Engine Cooling2
2022 Mercedes-Benz GLC-ClassFuel/Propulsion System1
2017 Toyota RAV4Engine1

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 73Equipment 33Engine And Engine Cooling 22Seat Belts 12Engine 4Seats 3
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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.

After recalls performed trouble code P2402 EVAP leak still is present and check engine light is on
2022 Mercedes-Benz GLC-ClassAug 27, 2026NHTSA owner report
Check Engine light illuminated, code: P2402 #07E8 EVAP SYSTEM LEAK DETECTION PUMP CONTROL CIRCUIT HIGH
2022 Volkswagen TiguanApr 17, 2026NHTSA owner report
I had the error codes read, and it came back as, “P2402 SAE: EVAP System Leak Detection Pump Control Circuit: High." In order for any work to be performed, VW demands a $212 diagnostic fee in order to even determine what is wrong with the…
2023 Volkswagen AtlasFeb 26, 2026NHTSA owner report

Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names P2402. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.

What P2402 means

Source: SAE J2012 / OBD-II

P2402 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 P2402

Source: NHTSA files and the OBD-II standard

Can I keep driving with P2402 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.