Справочник Пользователя для Continental Automotive GmbH KESSY

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FCC ID: KR5KESSY
File: S\Postzula\VW\Kessy\Usa_Canada\funktionsbeschreibung_e
Page 2
1.  Functional Description - Keyless access control system and
immobilizer, type KESSY
1.1.  General functional description
The keyless access control system, type Kessy, enables convenient utilization of the
vehicle. To use the vehicle, the driver only needs to take the key along with him/her.
The vehicle communicates with the system inductively via antennas. These antennas
are located in the outside door handles, in the rear bumper, in the gearshift - lever
housing , in the center console, in the central rear arm rest and in the backlite shelf.
These antennas are driven inductively with a frequency of 125 kHz. The system's
range is limited in a defined fashion by damping the body sheet metal. In the vehicle
interior, the ranges of the various antennas overlap, which enables location of the
key.
1.2.  Keyless access control (maximum assembly variant M-Option)
The handle of the driver's door and the boot lid are equipped with contacts to ensure
the locking and unlocking functions. If the door handle of a locked vehicle is pulled,
the control unit activates the antennas on the vehicle's side where the handle has
been pulled. These antennas generate an inductive field of 125 kHz which enable
identification of the transponder located in the key. In case of successful evaluation
by the KESSY control unit and with the outside door handle actuated, the command
"Open door" is issued, i.e. the door opening assistant and the central locking system
are activated.
If the "locking button" is pushed while the vehicle is unlocked, the identification proc-
ess is started, i.e. the KESSY control unit starts a request for a valid key. The key
returns a corresponding response to the KESSY control unit. If the key has been ac-
tivated successfully by the KESSY control unit, the central locking system is activated
and the vehicle is locked.