how can i recode my citroen xantia key fob?

i have a citroen xantia 2.0i r reg and the key fob worked ok but car has been stood for some time and no longer works on the remote locking so i cant arm the alarm. when the button on the fob is pressed the red led lights up on the fob and iv replaced the batteries. the led on the dash for the alarm is constantly lit very dim u can only see it at night.the infered dome has been replaced too
lee, March 2009


done
IT MIGHT BE THE SAME AS OTHER CITROEN MODELS PUT KEY IN IGNITION SWITCH ON IGNITION SO ALL LIGHTS ARE ON AND PRESS ANY ONE OF THE BUTTONS THIS SHOULD RECODE THE FOB TO THE CAR

BOB, March 2009
link Click here to see other fixes for Citroen.