P0021 on the 2009 Mazda Tribute
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.
| SB-01-038-09 | 2010-04-12. Service bulletin. MAZDA: SOME VEHICLES MAY EXHIBIT A MALFUNCTION INDICATOR LAMP (MIL) ON WITH DIAGNOSTIC TROUBLE CODES (DTC) P0011, P0012, P0021 OR P0022. THIS ISSUE MAY ALSO CAUSE P0340, P0341, P0344, P0345, P0346, OR P0349 CODES TO BE PRESENT. *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.