Impossible to answer without the exact model and caliber.
The address of the Cedarville Branch Library is: 20 S. Miller St., Cedarville, 45314 0026
susposaly try here but dint work 4 me http://www.fordmondeoownersclub.co.uk/forum/viewtopic.php?p=45314&sid=242655bc894fd4bc92b923a02fb92d62 thanx hi my name is martin i have done this with my v6 mondeo put the ignition key in and turn it to n03 and back 4 times in under 3 secs the red light on the computer will stay on the car is now in learn mode put the remote to the dash and press the key button the red light will flash its is now programmed put the key back in the ignition and turn the car on and off and try the key if it dont work disconncet the battery and reconncet it then procedure again