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 Fender Splash Shield
Removal and Installation With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Section  100-02. Remove the 10 fender splash shield pin-type retainers. Remove the fender splash shield-to-lower air deflector screw. Remove the fender ...