P0402 on the 2000 Mazda Protege
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.
| 0100702 | 2002-09-28. Service bulletin. SUBJECT REGARDING MALFUNCTION INDICATOR LAMP ILLUMINATES WITH DIAGNOSTIC TROUBLE CODE P0402 STORED IN MEMORY. *SLC |
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| 0101201 | 2001-09-04. Service bulletin. SUBJECT REGARDING MALFUNCTION INDICATOR LAMP LUUMINATION WITH DIAGNOSTIC TROUBLE CODE P0402 STORED IN MEMORY. *TT |
2 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.