P2C90
4 owner reports and 21 manufacturer filings across 9 model years from Ford, Jeep, Toyota.
Where P2C90 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2024 Ford F-150 | Power Train | 5 | — |
| 2020 Jeep Wrangler | Electrical System | 5 | — |
| 2018 Jeep Wrangler | Power Train | 4 | — |
| 2025 Toyota Corolla | Fuel/Propulsion System | — | 4 |
| 2026 Ford E-Transit | Electrical System | 2 | — |
| 2019 Jeep Wrangler | Electrical System | 2 | — |
| 2026 Ford Transit | Unknown Or Other | 1 | — |
| 2023 Jeep Grand Wagoneer | Engine And Engine Cooling | 1 | — |
| 2023 Jeep Wagoneer | Engine And Engine Cooling | 1 | — |
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
What owners said
Source: NHTSA complaint databaseOwners’ 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.
Hello, Today (01/21/2026), on my 2025 Toyota GR Corolla vehicle (odometer 5243 miles), after 3200 miles of driving with the updated engine control unit (ECU) as of 10/14/2025 according to the T-SB-0071-25, a P2C90 error appeared again with…
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P2C90. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.
- TSB 26-22812026-06-12 · Unknown Or Other
- This bulletin supersedes 26-2091. Reason for update: To update the production cutoff date for Transit vehicles. Some of the vehicles listed in the Model statement above may exhibit an illuminated MIL with DTC P2C90 stored in the powertrain control module (PCM). This may be due to the software in the PCM.
- TSB 26-20912026-03-04 · Power Train
- This bulletin supersedes 26-2045. Reason for update: update the labor operation allowances and the service procedure to include the required modules to program for F-150 Powerboost variant. Some of the vehicles listed in the Model statement above may exhibit an illuminated MIL with DTC P2C90 stored in the powertrain control module (PCM). This may be due to the software in the PCM.
- TSB 26-20452026-02-13 · Electrical System
- This bulletin supersedes 24-2405. Reason for update: update the vehicle model coverage to include 2026 Transit vehicles, remove the Parts List and update the Service procedure to perform the PCV system repair outside of this TSB. Some of the vehicles listed in the Model statement above may exhibit an illuminated MIL with DTC P2C90 stored in the PCM. This may be due to the software in the PCM.
- TSB 24-24052024-11-26 · Unknown Or Other
- Some 2024 F-150 vehicles built on or before 14-May-2024 equipped with a 3.5L PowerBoost engine and 2024 F-150 vehicles equipped with a 3.5L EcoBoost or 5.2L engine may exhibit an illuminated MIL with DTC P2C90 stored in the PCM.
- TSB 24-22002024-08-19 · Power Train
- Some 2024 F-150 vehicles built on or before 14-May-2024 equipped with a 3.5L PowerBoost may exhibit an illuminated MIL with DTC P2C90 stored in the powertrain control module (PCM). To correct this condition, perform the Service Procedure to to inspect the positive crankcase ventilation (PCV) system and reprogram the PCM to the latest software level via the Ford Diagnosis and Repair System (FDRS).
- 09010232023-06-14 · Engine And Engine Cooling
- Make Up Air (MUA) Valve Leak Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set: ? P2C90 - Crankcase Ventilation System - Hose A Disconnected. This bulletin involves replacing the MUA check valve, or performing an inspection and possibly replacing the PCV valve.
What P2C90 means
Source: SAE J2012 / OBD-IIP2C90 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 P2C90
Source: NHTSA files and the OBD-II standardCan I keep driving with P2C90 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.