Citroen XM - immobiliser locked out - chelsea1abroad

I have a citroen XM that has had the battery disconected because the indicator wouldnt turn off, and now wont accept the pass code, any ideas on how to reset it.Thanks

Citroen XM - immobiliser locked out - elekie&a/c doctor

If I recall,you need to leave the ignition on for around 15 mins then the green light should go out ,leaving red light on to allow code entry.hth