In Renault-specific diagnostics:
Sometimes DF045 is a software glitch in the BSI (built-in systems interface). Perform a full BSI reset: df045 renault scenic
If you’ve ever been driving your Renault Scenic and suddenly been greeted by a glaring "Service" or "Parking Brake Fault" message on your dashboard, you might have encountered the elusive DF045 code df045 renault scenic