Continental Automotive 5WK48171 KEYLESS VEHICLE MODULE User Manual

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Document ID	613065
Application ID	kr6sOjmzHjsDsD8TEDYYXA==
Document Description	Users Manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	11.48kB (143489 bits)
Date Submitted	2005-12-20 00:00:00
Date Available	2005-12-19 00:00:00
Creation Date	2005-12-09 09:46:45
Document Lastmod	2005-12-09 10:06:55
Document Title	Users Manual
Document Creator	Canon

SIEMENS VDO Automotive AG SV C BC P2 RF TG
FCC ID:KR55WK48171 IC:267T-5WK48171
Functional Description /
User Manual
of the
Siemens VDO
Keyless Vehicle Module
type 5WK4 8170
5WK4 8171
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SIEMENS V'DO Automotive AG SV C BC P2 RF TG
FCC 1D:KR55WK48171 lC1267T-5WK48171
General functional description
The immobilizer system is equipment which enables comfortable operation of the
vehicle. To be able to operate the vehicle the driver only has to take the key with
him. The vehicle communicates with the key inductively via ferrite- antennas which
are located in the front doors and in the trunk. These ferrite antennas are driven by
inductance with a frequency of 125 kHz. By damping the body sheet-metal of the car,
the system's range is kept in defined limits. This enables the locating of the key.
The door handles and the trunk lid have been equipped with contacts for the
functions "Iocking" and "unlocking" the vehicle. Woken up by pulling a door handle
the immobilizer sends a challenge 125 kHz via the corresponding inductive door
antenna to the key. The data transmitted in the process activate the key. The key
sends a code to the radio receiver on the control unit via radio frequency
transmission. The control unit transmits the data to the vehicle's “electronic ignition
starter switch (EZS)". If this code is assessed as valid in the E28, the vehicle will be
unlocked.
If a lock command is send to the control module while the vehicle is unlocked, the
E23 and the key interchange a code via the control module and the antennas. It the
key is in the exterior area and the code is valid, the vehicle will be locked.
If it is intended to start the engine of a vehicle, it requires start actuation of a key.
The inductive antennas are activated in a defined manner to ensure that the key is
inside the vehicle. It the valid start code is sent by the key, the engine will start. if the
code is invalid, the engine will not start. '
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SIEMENS VDO Automotive AG SV C BC P2 RF m
FCC IDZKRSSWK48171 IC2267T-5WK48171
Llst of variants
5WK4 8170 Control unit R230FtD for ECE use
5WK4 8171 Control unit H230RD for USA use
5WK4 8172 Door antenna R230FtD oeneral use
Block diagram
The immobilizer system consists of a control unit, the inductive antennas and the
key. To activate the system, sensors or capacitive-buttons are located in the doors,
in the trunk lid and in the interior. Interaction with the vehicle is effected via the radio
receiver in the control module, which receives the messages from the key and
transmits them via the vehicle's CAN bus to the E28.
Electronic ignition
starter switch
EZS
Control unit
with radio receiver
Antennas in the doors, in the
trunk lid and in the bumper
Immobilzer
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SIEMENS VDO Automotive AG SV C BC P2 RF TG
FCC ID:KR55WK48171 IC:267T-5WK48171
Technical description
Carrier freguency: 125kHz i- 5kHz
Field strength: <42 dBpA/m @ 10 m
Modulation: ASK
Supply voltage: 13.5 V
Type of battery: car battery
Flange: < 2.0 m
Dug Cycle (only for Europe}
20 actuations of immobilizer system within 24 hours with a typical transmission time
of 0,03 seconds (0.025 seconds / hour).
Transmission time T (on) 0.025 seconds/ hour
Off time T (off) 3,599.975 seconds / hour
Duty Cycle: T (on) / T (on+oft) x 100% = 0.025 / 3,600 x 100% = 0.0007%
Averaging factor
The period length T Period is 440ms. The data length is gems manchester coded
signal and 4ms continuous signal. Due to this Ton time is 52ms.
The averagging factor‘ in this case is -5.68dB.
Label Design
USA/CAN:
Europe:
Siemens VDO
Siemens VDO ‘ 5WK48171
5WK4 8170 FCC ID:KR55WK48171
c E , IC:267T-5WK48171
This device complies with part 15 of the
FCC Rules and ass-210. Operation is
subject to the following two conditions: (1)
This device may not cause harmful
interference, and (2) this device must
accept interference received, including
interference that may cause undesired
operation.
NOTE:
Changes or modifications not expressly approved by the manufacturer could void the user’s
authority to operate the equipment.
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