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 Safety Belt Retractor - Rear, Center
  Item Part Number Description 1 — Rear center safety belt anchor bolt (part of 611B66) 2 611B66 Rear center safety belt retractor 3 W708903 Rear center safety belt retractor nut Removal and Installation WARNING: A ...