P0128 on the 2017 Ford Fiesta
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.
| TSB 19-2116 | 2019-05-06. Service bulletin. Some 2016-2019 Fiesta vehicles built on or before 19-Feb-2019 may exhibit an illuminated malfunction indicator lamp (MIL) with diagnostic trouble code (DTC) P0128 stored in the powertrain control module (PCM). This may be due to some PCM software parameters related to engine temperature. To resolve the condition, reprogram the PCM. |
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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.