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P0340 on the 1999 Ford Contour

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.

Bulletins for this model year that name P0340
0315142003-10-10. Service bulletin. THE MALFUNCTION INDICATOR LAMP (MIL) MAY BE ILLUMINATED AND DIAGNOSTIC TROUBLE CODES (DTCS) P1380, P1381, P1383, AND/OR P0340 MAY BE STORED IN MEMORY. *TT
9851842000-06-21. Service bulletin. VEHICLES MAY EXHIBIT A CONCERN WHERE THE MALFUNCTION INDICATOR LAMP (MIL) IS ILLUMINATED WITH ONE OR MORE DIAGNOSTIC TROUBLE CODES: P0117, P0122, P0141, P0174-P0175, P0300-P0306, P0320, P0340, P0350-P0360, P0385, P1504-P1507, AND P1518-P1519. *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.