How do u reline key fob 2 car central locking so i can use remote again i have a mondeo?

go 2 a ford Maine dealer thy will have book and will be Abel


2 reline key fob or go 2 a garage and see if thy have the book|||you have to plug into the ecu security settings and you can do it from there|||turn to ignition but don't start the car press the key fob three times take the key out of the ignition and then try|||It has to be programed to your cars ECU.