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 Receiver Drier
Material Item Specification Motorcraft® PAG Refrigerant Compressor Oil YN-12-D WSH-M1C231-B   Item Part Number Description 1 — Receiver/drier bolt (part of 19C836 kit) 2 19C836 Receiver/drier ...