hi it have a 1995 rangerover and the key fob was fallin to pieces so replaced the buttons which was fine reprogrammed the keys to the jeep and all the doors locked unlocked etc it was fine untill i went to start it and it is now comming up with engine immobilised and now wont start the hand book is saying to use a four digit code that should b on a card i dont have prob been lost over the years any help would b appreciated as i cant drive it at all now!!thanks rolly :doh: