The level sensor inside the fuel tank may be failing. Some owners have successfully fixed this by cleaning the contacts or soldering loose connections on the fuel pump "pigtail". The Power Steering Pressure Issue If the code relates to the PSP:
The instrument cluster and injection ECU lose software calibration parameters. Step-by-Step Diagnostic and Repair Workflow renault df455
No physical symptoms; code disappears while the engine runs. The level sensor inside the fuel tank may be failing
Install an automatic fuel gauge reset relay module (emulator). Hard stored code that fails to clear via OBD scanner. Incompatible firmware or map logic error in the chip tune. Incompatible firmware or map logic error in the chip tune
Follow this sequence to diagnose and resolve a DF455 error code without unnecessarily replacing expensive components: Step 1: Check System Voltage First
The Renault fault code Low Fuel Level Information Información Nivel Mínimo de Carburante