P26C1 · Manufacturer communications

FORD · 2022-04-12

Some 2020-2022 Escape plug-in hybrid electric vehicle (PHEV) and 2021-2022 Corsair PHEV vehicles built on or before 3-Mar-2022 may exhibit an illuminated malfunction indicator lamp (MIL) and/or engine coolant over temperature warning message with Diagnostic Trouble Code (DTC) P2183 stored in the powertrain control module (PCM). DTC P26C1 may also be present due to DTC P2183 setting. This condition occurs when the vehicle is driven with the cabin coolant heater active and after an engine long soak the DTC P2183 will incorrectly set at next key on. This may be due to the soak timer feature in the PCM that miscalculates the heater off soak timer. To correct the condition, follow the Service Procedure to reprogram various modules starting with the PCM.

FORD, LINCOLN · 2021-12-07

Some 2021 Escape/Corsair 2.5L PHEV vehicles may exhibit an illuminated MIL with DTCs P2183 and/or P26C1 present. The vehicle may also exhibit an engine overheat message in the instrument panel cluster. Engineering is aware of this concern and is working on a solution. Continue with checking the engine coolant level, inspect the cabin heater coolant temperature sensor (ECT sensor 2) connector for contamination and perform Workshop Manual (WSM), Section 412-00 pinpoint test AQ. If no concern is found and the vehicle does not exhibit DTC P1285 or P1299, clear the DTCs. If DTCs P1285 or P1299 are present, perform normal WSM diagnosis and repair. Inform customers that Ford is working on a resolution and that the vehicle is safe to drive. Monitor OASIS for updates. Once the solution becomes…