Citroen 09d1 !!hot!! Info

On many Citroen models, the tank cap contains a printed circuit board (PCB). This board fails due to thermal cycling or AdBlue vapor corrosion, breaking the communication line to the pump.

: On early models (up to OPR No. 12047, approx. November 2009), the vehicle software may look for mirror position sensors that were either omitted from the factory or removed in later production runs. citroen 09d1

Run a full OBD2 scan to see if 09D1 is accompanied by other faults (e.g., injector circuit codes or BSI codes). On many Citroen models, the tank cap contains