Ford Focus Owners Manual: Principle of operation

Engine immobiliser

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Coded keys

Note: Do not shield your keys with metal objects. This may prevent the receiver from recognising your key as a valid one. Note: Have all of your remaining keys erased and recoded if you lose a key ...

More about Ford Focus:

Ford Focus Antenna Cable — Satellite Radio
Front Satellite Radio Antenna Cable   Item Part Number Description 1 18812 Front satellite radio antenna cable Rear Satellite Radio Antenna Cable   Item Part Number Description 2 18812 Rear satellite radio ...