P0404 on the 2021 Nissan Altima
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.
| NTB22-097 | 2022-11-12. Service bulletin. DTC P0404 STORED IN THE ECM AT TEMPERATURES BELOW 32°F IF YOU CONFIRM DTC P0404 (EGR A CONTROL) is stored in the ECM at temperatures below 32°F. ACTION 1. Confirm the current ECM part number. 2. Reprogram the ECM, if applicable. |
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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.