P0448 on the 2021 Infiniti QX50
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| ITB22-042 | 2023-01-10. Service bulletin. MIL ON WITH DTC P0448 STORED IN THE ECM IF YOU CONFIRM The MIL is ON with DTC P0448 (VENT CONTROL VALVE) stored in the ECM. ACTION See Repair Overview on page 2 for diagnostic procedure. |
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1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.