U02B2Lost Communication With Comfort and Convenience Display B
- Generic OBD-II code · Network
- How the car detects it
- Where a vehicle carries two comfort screens, display B is normally the second one, the rear panel from which back-seat passengers set climate and seats. U02B2 means that unit has dropped off the bus while display A may keep working. No manufacturer documents U02B2 or says which screen carries the letter B. The Jeep Grand Wagoneer shows the layout: a rear display (CCDMR, two part numbers) next to the front one, with a lockout of the rear unit selectable from the front. Stellantis uses that lockout to find which screen issues phantom fan changes and replaces the culprit with a newer firmware part (S228A000013, Rev. A, 2023). Rear wiring runs through the console and seat area, where it can be pinched. Rear occupants lose their own climate and seat controls.
- What you may notice
- Rear comfort display blank or frozen
- Rear climate or seat functions only adjustable from the front, or not at all
- Likely causes
- LikelyHarness to the rear display pinched or unplugged in the console or seat area
- PossibleRear display module failed
- PossibleFuse or ground of the rear display interrupted
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €1,600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.