Ford Focus Owners Manual: Principle of operation
Ford Focus Owners Manual / Engine immobiliser / Principle of operation
The engine immobiliser is a theft protection system that prevents someone from starting the engine with an incorrectly coded key.
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 Warning lamps and indicators
The following warning lamps and
indicators will come on briefly when you
switch the ignition on to confirm that the
system is operational:
• ABS.
• Airbag.
• Brake system.
• Doors open.
• Engine.
• Engine immobiliser.
• Engine systems fault.
• Frost.
• Ignition.
• ...
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