Every transponder carries data the car checks before it starts. We code new chips to your vehicle, and re-code or clone existing keys where the data needs to match a replacement — part of getting a key from "fits the lock" to "actually starts".
Coding usually goes hand in hand with programming and cutting; together they produce a fully working key.
Coding matches the chip's data to your car; programming enables the key in the immobiliser. Most replacement keys need both.
Often yes, depending on the make and the key's condition. Give us your car details and we'll confirm.
Yes — for most makes we code keys mobile, wherever your car is.