Pfk 457 Vehicle Security Alarm; Vehicle Security Alarm; Transmitter Keys; Disarming The Alarm/Unlocking - Lotus Evora Service Notes

Lotus Service Notes
MR.1 - PFK 457 VEHICLE SECURITY ALARM
Keys
A mechanical key is used to operate the combined ignition switch/steering column lock, and the emergency
manual door locking function via the left hand door. The keyhead incorporates three push buttons by which to
operate the electronic immobiliser, alarm system and central door locking.
A duplicate key is supplied with the new car and, on receipt, should be separated and kept in a safe place
for use in an emergency. The mechanical key code and security system PIN (sPecific Identification Number)
are also supplied with the keys, and should be removed from the key ring by the owner, and noted safely with
the vehicle documents. These numbers should also be recorded by the selling dealer and kept securely with
the vehicle file in the interests of customer service. The codes will be required when ordering or programming
replacement or additional keys, and the PIN will allow the security system to be overridden in case of transmit-
ter loss or failure (see later).

Vehicle Security Alarm

The Lotus Evora is fitted as standard with a PFK 457 immobiliser/alarm which includes the following
features:
• U.K. approval to Thatcham category 1.
• 'Dynamic coding' of the transmitter keys; Each time the transmitters are used, the encrypted rolling code
is changed to guard against unauthorised code capture.
• Passive activation of immobiliser, central locking and alarm system.
• Ingress protection using sensing switches on the latches of both doors, and the tailgate.
• Selectable cockpit intrusion detection using a microwave sensor.
• Self powered siren to maintain protection if the vehicle battery is disconnected.
• Personal protection by 'on demand' activation of the siren.
• Emergency alarm override and transmitter key programming using an alarm sPecific Identification Number
(PIN).
• Homesafe and selectable dynamic (drive away) locking.

Transmitter Keys

Two transmitter keys are provided with
the car, and combine a mechanical key blade
with a three button transmitter unit incorpo-
rated into the key head. The mechanical
key operates the ignition switch/steering lock
and emergency manual door locking. The
transmitter operates the central locking, alarm
system and electronic immobiliser. The 4-digit
code for the mechanical key, the unique se-
rial number of the immobiliser/alarm, and the
system's 5-digit sPecifc Identification Number
(PIN), are supplied on plastic tags attached to
the key ring of a new vehicle.

Disarming the Alarm/Unlocking

When approaching the car, it is likely that the vehicle is locked and the alarm armed, as indicated by
the alarm red tell tale lamp in the speedometer face flashing once every 3 seconds. To disarm the alarm and
unlock the doors:
- Press the central, unlock, button on the transmitter key. The first press will unlock the driver's door, and
a second press, the passenger's door.
- This command will be acknowledged by a double flash of the hazard lamps.
- The alarm tell tale will be extinguished.
- The interior and mood lights will fade on, and remain lit for up to 2 minutes (if set to the 'courtesy' posi-
tion).
- The engine will be mobilised (see below).
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Manual siren, tailgate
Disarm, mobilise, unlock
Arm & Lock
TRANSMITTER KEY
Section MR
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