P1421 on the 2009 Nissan Cube
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.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| NTB-10-089 | 2010-09-23. Service bulletin. NISSAN: MIL ON WITH DTC P1421 STORED. IF SERVICE ENGINE SOON LIGHT (MIL) ON AND DTC 1421 (COLD START CONTROL) IS STORED IN THE ECM. *PE |
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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.