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 Changing a fuse
WARNINGS:
Do not modify the electrical system
of your vehicle in any way. Have
repairs to the electrical system and
the replacement of relays and high current
fuses carried out by properly trained
technicians.
Switch the ignition and all electrical
equipment off before touching or
attem ...
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