Citroen 09d1 Here

Green corrosion (verdigris) in the electrical plugs inside the door card can cause "short to earth" or "short to positive" readings.

: Diagnostic codes for Citroën usually follow the P1xxx format. "09D1" might be a shorthand for a specific fault code used in older proprietary scanner systems. General Steps to "Prepare Paper" (Papercraft) citroen 09d1

Check the wiring inside the rubber boot between the door and the car body for any visible breaks. Green corrosion (verdigris) in the electrical plugs inside