Before throwing parts at the problem, follow this diagnostic hierarchy:
Use an OBD2 scanner that reads Renault-specific codes (like Delphi DS150, CLIP, or a good aftermarket scanner). Note all codes. Clear them and take the car for a drive. Does DF038 return immediately, or only under load? df038 renault scenic 2
Disconnect the battery, then remove the ECU connectors to check for bent pins, moisture, or green corrosion. Clean them with specialized contact cleaner. Before throwing parts at the problem, follow this
The fault code Renault Scenic II is a serious diagnostic trouble code that typically points to an Before throwing parts at the problem
