U031DSoftware Incompatibility With Parking Assist Control Module A
- Generic OBD-II code · Network
- How the car detects it
- Parking assist control module A evaluates the ultrasonic bumper sensors for park distance warnings and, on newer vehicles, supports low-speed helpers such as automated parking. U031D tells that another controller considers the software or configuration of this module wrong for the vehicle. Ford describes a case on 2021–2022 F-150 trucks without electric drive (SSM 52371): the PCM stored U031D, lit the wrench lamp and showed Service Vehicle Soon while the truck drove normally. Ford traces it to the PCM configuration and clears it with the FDRS routine that disables Pro Trailer Hitch Assist in the PCM. So the code can sit in the engine controller and still concern a parking function. U0159 means lost contact, U045A invalid data, U031E concerns module B. Park distance or trailer helpers may be unavailable.
- What you may notice
- Wrench lamp or service message without any drivability complaint
- Park distance warning or trailer hitch assist not available
- Code returns after clearing until the configuration is corrected
- Likely causes
- LikelyVehicle or PCM configuration lists a parking or trailer feature that does not match the fitted module
- PossibleParking assist module replaced or swapped without programming
- RareOnly some modules updated, leaving the parking module on an older level
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €60 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.