If you haven't already fixed it telephone your local Citroen dealership and they will arrange a re-code. Ask what Identification is required, usually the registration document. Take the car down and they will remove or slide the unit out to get the code bank entry code for your unit. This is then put on a computer and the code/new code is returned. They enter it and give you a sheet with the new code on it.
bob
bob
October 2005