# P0771 on the 2022 Ford F\-600

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 P0771

- [11038441](https://open.wenmarpro.com/bulletins/11038441), 2026-10-13: NOTE: This bulletin has been updated, refer to the change log at the bottom for details. Issue: Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: • Poor shift quality • Illuminated powertrain malfunction \(wrench\) indicator with DTCs P2704 and P0771 stored in the PCM / TCM . This may be due to a calibration in the TCM and/or wear between the input shaft and the E clutch hub causing theinput shaft O\-rings to become damaged resulting in an open E clutch circuit. Action: For vehicles that meet all of the criteria in the Issue and Model statements, follow the Service Procedure toreprogram the PCM / TCM and/or replace the E clutch hub and input shaft O\-rings
- [11028838](https://open.wenmarpro.com/bulletins/11028838), 2026-02-17: This article supersedes TSB 24\-2142 to update the Parts List, Service Procedure \(Steps 1\-2\), and increase the labor operation allowances to reprogram the PCM/TCM. Some of the vehicles listed in the Model statement above may exhibit all of the following conditions: Poor shift quality Illuminated powertrain malfunction \(wrench\) indicator with diagnostic trouble codes \(DTC\) P2704 and P0771 stored in the PCM/TCM. This may be due to a calibration in the TCM and/or wear between the input shaft and the E clutch hub causing the input shaft O\-rings to become damaged resulting in an open E clutch circuit. Additional model information: 6.7L Diesel Engine 2022\-2024 F\-550 or F\-600 F\-Super Duty vehicles built on or before 15\-May\-2024 with over 5,000 miles \(8,000km\)
- [11001575](https://open.wenmarpro.com/bulletins/11001575), 2024-06-12: This article supersedes TSB 23\-2376 to update the Part List and the Service Procedure. Some 2022\-2024 F\-550 and F\-600 F\-Super Duty vehicles equipped with a 10R140 automatic transmission and 6.7L diesel engine may exhibit an illuminated powertrain malfunction \(wrench\) indicator with diagnostic trouble codes \(DTCs\) P2704 and P0771 stored in the transmission control module \(TCM\) with poor shift quality and over 5,000 miles \(8,000 km\) in service. This may be due to wear between the input shaft and the E clutch hub causing the input shaft O\-rings to become damaged resulting in an open E clutch circuit. To correct this condition, follow the Service Procedure to replace the E clutch hub and input shaft O\-rings.
- [10248351](https://open.wenmarpro.com/bulletins/10248351), 2024-01-05: Some 2022 F\-550 and F\-600 F\-Super Duty vehicles equipped with a 10R140 automatic transmission and 6.7L diesel engine may exhibit an illuminated powertrain malfunction \(wrench\) indicator with diagnostic trouble codes \(DTCs\) P2704 and P0771 stored in the transmission control module \(TCM\) with poor shift quality and over 5,000 miles \(8,000 km\) in service. This may be due to wear between the input shaft and the E clutch hub causing the input shaft O\-rings to become damaged resulting in an open E clutch circuit. To correct this condition, follow the Service Procedure to replace the E clutch hub and input shaft O\-rings.