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B2290 on the 2007 Mazda CX-9

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.

Bulletins for this model year that name B2290
TSB-08-004-082009-03-25. Service bulletin. MAZDA: AIR BAG INDICATOR ILLUMINATES AND DTC B2290 IS SET WITHOUT ANY OF THE LISTED POSSIBLE CAUSE ITEMS PRESENT AS SHOWN IN MS3 OR WORK-SHOP MANUAL DIAGNOSTIC INFORMATION FOR B2290. *PE

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.