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P246C on the 2017 Ford Transit

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 P246C
TSB 19-20612019-04-02. Service bulletin. Some 2015-2019 Transit vehicles equipped with a 3.2L diesel engine may exhibit Drive To Clean maintenance messages and/or an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2459, P2463, and/or P246C. Vehicles may also exhibit frequent automatic exhaust regeneration attempts. This may be due to vehicles being used in stationary or off-highway, low speed applications. If automatic regeneration attempts are unsuccessful, these symptoms may be a result of soot accumulation in the diesel particulate filter (DPF). These vehicles may benefit from operator commanded regeneration (OCR) capability so complete regeneration cycles may be performed in a stationary setting. Some 2015-2019 Transit vehicles equipped with a 3.2L diesel engine may exhibit Drive To Clean maintenance messages and/or an illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P2459, P2463, and/or P246C. Vehicles may also exhibit frequent automatic exhaust regeneration attempts. This may be due to vehicles being used in stationary or off-highway, low speed applications. If automatic regeneration attempts are unsuccessful, these symptoms may be a result of soot accumulation in the diesel particulate filter (DPF). These vehicles may benefit from operator commanded regeneration (OCR) capability so complete regeneration cycles may be performed in a stationary setting.
tsb18-22232018-09-10. Service bulletin. Some 2015-2018 Transit vehicles equipped with a 3.2L diesel engine may exhibit "Drive To Clean" maintenance messages and/or an illuminated malfunction indicator lamp (MIL) on with DTC P2459, P2463, and/or P246C. Vehicles may also exhibit frequent automatic exhaust regeneration attempts. This may be due to vehicles being used in a stationary or off-highway, low speed applications. If automatic regeneration attempts are unsuccessful, these symptoms may be a result of soot accumulation in the diesel particulate filter (DPF). These vehicles may benefit from operator commanded regeneration (OCR) capability so complete regeneration cycles may be performed in a stationary setting. Information only, follow the Service Procedure steps to correct the condition.
tsb18-21892018-09-10. Service bulletin. Some 2015-2018 Transit vehicles equipped with a 3.2L diesel engine may exhibit "Drive To Clean" maintenance messages and/or an illuminated malfunction indicator lamp (MIL) on with DTC P2459, P2463, and/or P246C. Vehicles may also exhibit frequent automatic exhaust regeneration attempts. This may be due to vehicles being used in a stationary or off-highway, low speed applications. If automatic regeneration attempts are unsuccessful, these symptoms may be a result of soot accumulation in the diesel particulate filter (DPF). These vehicles may benefit from operator commanded regeneration (OCR) capability so complete regeneration cycles may be performed in a stationary setting. Follow the Service Procedure steps to correct the condition.
TSB18-20642018-05-14. Service bulletin. Some 2016-2018 Transit vehicles equipped with a 3.2L engine and built on or before 13-Feb-2018 may exhibit an illuminated MIL with diagnostic trouble codes (DTC) P246C and/or P2463 in the powertrain control module (PCM). Follow the Service Procedure steps to correct the condition.

4 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.