The CAN bus needs 60 ohms of resistance across its two wires (CAN High and CAN Low). In Exclusive trims, additional modules (like the hands-free access module) can change this resistance. If it drops to 50 ohms or below, messages get corrupted, and appears sporadically.
Because models have flashier clusters, their software is more complex. A glitch in the EEPROM chip inside the cluster can cause it to stop sending the "acknowledge" signal to the ECU. This is a pure communication fault; the engine may run perfectly, but the code persists. mot 1654 renault exclusive
Diesel-specific: