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2017 F-Super Duty – 6.7L – Illuminated Malfunction Indicator Lamp (MIL) With Diagnostic Trouble Code (DTC) P2459
Some 2017 F-Super Duty vehicles equipped with 6.7L engines may exhibit an repeat illuminated MIL with a DTC P2459.
Prior to any repair, verify that the powertrain control module (PCM) is at the latest level as directed in Technical Service Bulletin (TSB) 17-0054.
If the PCM is at the latest level and no concerns are found when completing pinpoint test RB in the Powertrain Control/Emissions Diagnosis (PC/ED), do not attempt any repairs at this time.
Engineering is currently investigating this concern, monitor OASIS for updates regarding latest information and diagnostic direction.