P1285 on the 2025 Ford F-150
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.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| TSB 26-2217 | 2026-05-14. Service bulletin. This bulletin supersedes 24-2441. Reason for update: consolidation of prior bulletins and an update the Service Procedure to diagnose and replace the cylinder head temperature (CHT) sensor with an updated version. Some of the vehicles listed in the Model Statement above may exhibit all of the following conditions: * Illuminated power train malfunction (wrench) indicator/malfunction indicator lamp (MIL) with diagnostic trouble codes (DTCs) P1299, P1285 and/or P2C39 stored in the powertrain control module (PCM). * "Engine Over-Temperature" and/or Service Vehicle Soon warning message(s) displayed in the instrument panel cluster (IPC) This may be due to the software in the PCM and/or the CHT sensor. Note: The vehicle's cooling fan will operate normally with no loss of engine coolant. |
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| SSM 54331 | 2025-11-04. Service bulletin. Some 2024-2025 F-150 vehicles equipped with a 2.7L engine, built on or after 27-Aug-2024 may exhibit an illuminated powertrain malfunction (wrench) indicator with diagnostic trouble codes (DTCs) P1285 and/or P1299 stored in the powertrain control module (PCM) and Engine Coolant Over Temperature and/or Service Vehicle Soon warning message displayed on the instrument panel cluster (IPC). This may be due to the cylinder head temperature (CHT) sensor. Follow the Workshop Manual (WSM) 303-03A Engine Cooling - 2.7L EcoBoost > Diagnosis and Testing > Engine Temperature Pinpoint Test (PPT) DL1-DL10. If P1285 and/or P1299 is still present, replace the CHT sensor. Refer to WSM, Section 303-14A Electronic Engine Controls > Removal and Installation. For claiming use causal part 6G004 and labor operation 12650D and 12650D10 of the Service Labor Time Standards (SLTS) Manual. |
2 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.