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 Starter Motor
  Item Part Number Description 1 W704141 Starter solenoid wire nut 2 W701596 Starter solenoid battery cable nut 3 14a280 Starter motor solenoid wire harness terminal cover 4 13a506 Engine Oil Pressure (EOP) swi ...