U031ESoftware Incompatibility With Parking Assist Control Module B
- Generic OBD-II code · Network
- How the car detects it
- Parking assist control module B is a second park aid unit, found where front and rear sensors are split between controllers or an automatic parking controller sits beside the distance warning; which unit gets the letter B is decided by each maker. U031E is set when a partner module rejects the software or setup of module B, mostly after a replacement or an incomplete update. No manufacturer documents U031E publicly. FCA illustrates how such units react to bad calibration data: on 2015–2016 Jeep Renegade with ParkSense or parallel and perpendicular park assist, the park assist module stored B1000-46, the cluster announced that ParkSense was not available, and only a reflash at stable voltage helped (08-078-16). U0243 is lost contact, U0544 invalid data, U031D covers module A. Distance warnings or self-parking stay off.
- What you may notice
- Park assist unavailable message in the cluster
- No warning tones from front or rear sensors
- Automatic parking function cannot be started
- Likely causes
- LikelySecond parking module replaced or taken from another car without programming
- PossibleModule variant does not match the fitted sensor set or parking option
- RareSoftware update of the parking module interrupted or incomplete
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €60 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.