P0135 on the 2001 Ford Focus
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.
| 14505 | 2001-08-09. Service bulletin. EXHIBITING A CHECK ENGINE LIGHT ON AND DIAGNOSTIC TROUBLE CODE P0135, P0122, P0190, P1120, P1125. *TT |
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| 14505 | 2001-03-06. Service bulletin. SOME VEHICLES BUILT BETWEEN 09/01/2000 MAY EXHIBIT A CHECK ENGINE LIGHT ON AND DIAGNOSTIC TROUBLE CODE P0135. *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.