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B1D09 on the 2022 Ford F-250

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.

Bulletins for this model year that name B1D09
SSM 533662025-02-11. Service bulletin. Some 2022 F-Super Duty vehicles equipped with a 12.3 inch center display screen and 2023-2024 F-Super Duty vehicles may exhibit DTCs B1D08 and/or B1D09 stored in the trailer module (TRM) with a "Trailer Brake System Fault See Manual" message in the instrument panel cluster (IPC) when a trailer is not connected to the vehicle.
SSM 524672024-05-03. Service bulletin. Some 2022 F-Super Duty vehicles equipped with a 12.3 inch center display screen and 2023-2024 F-Super Duty vehicles may exhibit DTCs B1D08 and/or B1D09 stored in the trailer module (TRM) with a Trailer Brake System Fault See Manual message in the instrument panel cluster (IPC) when a trailer is not connected to the vehicle. This may be due to water intrusion at the back side of the trailer tow connector. Disconnect connector C4099 from the back of the trailer tow connector (14489). Inspect connector C4099 and the mating socket on the back of the trailer tow connector for signs of corrosion or damage. If corrosion or damage is present at either connector, replace both the female side of the C4099 connector using service pig tail kit (3U2Z-14S411-JXC) and the trailer tow connector. If corrosion or damage is not present, refer to the Workshop Manual (WSM) Section 417-01 Exterior Lighting, Diagnosis and Testing for additional diagnosis. For claiming, use causal part 13A576 and applicable labor operations in Section 01 of the Service Labor Time Standards (SLTS) Manual.
SSM 523082024-03-05. Service bulletin. Some 2022 F-Super Duty vehicles equipped with a 12.3 inch center display screen and 2023-2024 F-Super Duty vehicles may exhibit DTCs B1D08:11 and/or B1D09:11 stored in the trailer module (TRM) with a Trailer Brake System Fault See Manual message in the instrument panel cluster (IPC) when a trailer is not connected to the vehicle. This may be due to water intrusion at the back side of the trailer tow connector. Inspect connector C4099 and the trailer tow connector (14489) for signs of corrosion or damage. If corrosion or damage is present at either connector, replace the female side of the C4099 connector using service pig tail kit (3U2Z-14S411-JXC) and the trailer tow connector. If corrosion or damage is not present, refer to the Workshop Manual (WSM) Section 417-01 Exterior Lighting, Diagnosis and Testing for additional diagnosis. For claiming, use causal part 14489 and applicable labor operations in Section 01 of the Service Labor Time Standards (SLTS) Manual.
TSB 22-20982022-03-22. Service bulletin. Some 2022 F-Super Duty vehicles equipped with a trailer brake controller and a 12.3 inch center display screen, built on or before 16-Feb-2022, may exhibit a trailer brake module fault message, trailer lighting module fault message and/or trailer right turn lamps fault/trailer left turn lamps fault message, diagnostic trouble codes (DTC) B1D08 and/or B1D09 stored in the integrated trailer module (TRM) and/or U0137 stored in the instrument panel cluster (IPC) or body control module (BCM). This may be due to the software in the TRM. To correct the condition, follow the Service Procedure to reprogram the TRM.

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.