is a clear indicator that the Renault UPD has an internal hardware or memory fault. While the vehicle may remain drivable, the affected electrical functions will behave unpredictably. The most reliable fix is replacement of the UPD with a new unit, followed by VIN coding and configuration using Renault diagnostic software.
For a professional diagnosis, consider visiting a local specialist like German Experts or using tools recommended by Carista for deeper system scanning. Renault Scenic Braking system fault message fixed renault dtc f00316 upd