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P0109 on the 2019 Lincoln MKT

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 P0109
TSB 19-22122019-08-07. Service bulletin. Some 2018-2019 Explorer/Flex/Taurus/MKT vehicles equipped with a 3.5L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL), powertrain malfunction (wrench) lamp, Service AdvanceTrac message, Hill Start Assist Not Available message, and/or lack of power with diagnostic trouble codes (DTCs) P0107, P0108 and/or P0109 present. This may be due to a faulty manifold absolute pressure and temperature (MAPT) sensor. To correct the condition, follow the Service Procedure to replace the MAPT sensor.
TSB-22122019-08-06. Service bulletin. Some 2018-2019 Explorer/Flex/Taurus/MKT vehicles equipped with a 3.5L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL), powertrain malfunction (wrench) lamp, Service AdvanceTrac message, Hill Start Assist Not Available message, and/or lack of power with diagnostic trouble codes (DTCs) P0107, P0108 and/or P0109 present. This may be due to a faulty manifold absolute pressure and temperature (MAPT) sensor. To correct the condition, follow the Service Procedure to replace the MAPT sensor.
TSB 19-21832019-07-03. Service bulletin. Some 2018-2019 Explorer/Flex/Taurus/MKT vehicles equipped with a 3.5L EcoBoost engine may exhibit an illuminated malfunction indicator lamp (MIL), powertrain malfunction (wrench) lamp, Service AdvanceTrac message, Hill Start Assist Not Available message, and/or lack of power with diagnostic trouble codes (DTCs) P0107, P0108 and/or P0109 present. This may be due to a faulty manifold absolute pressure and temperature (MAPT) sensor. To correct the condition, follow the Service Procedure steps to diagnose and replace the MAPT sensor.

3 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.