Continental Automotive 5WK50073 Keyless Car Entry User Manual

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Document ID	1339555
Application ID	FnbcEjQiU8XHKCADWM6WhA==
Document Description	user manual
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	17.17kB (214658 bits)
Date Submitted	2010-09-08 00:00:00
Date Available	2010-09-08 00:00:00
Creation Date	2010-05-20 16:19:23
Producing Software	ScanSoft PDF Create! 5
Document Lastmod	2010-05-20 16:20:00
Document Title	Microsoft Word - Functional_Description-Global-A_Flap-Key_v02.doc
Document Creator	Microsoft Word - Functional_Description-Global-A_Flap-Key_v02.doc
Document Author:	uid04444

Continental Automotive GmbH
IC:7812D-5WK50073
IC:7812D-5WK50079
FCC ID:KR55WK50073
FCC ID:KR55WK50079
User Manual / Functional Description
of the
Continental
RF Transmitter
Global A Flap Key
Type
5WK50079
5WK50073
Continental Automotive GmbH
IC:7812D-5WK50073
IC:7812D-5WK50079
FCC ID:KR55WK50073
FCC ID:KR55WK50079
General System Description
The RF-remote control system is a subsystem of a Body Computer Module
(BCM) for an automotive carline.
It consists out of a tuning free RF- transmitter in the key and the receiver
module, which is directly connected to BCM control unit.
General description RF transmitter
The RF Transmitter is contained within the head of the vehicle key. It contains
a microprocessor controlled RF transmitter for sending commands to the RF
receiver to remotely control certain vehicle functions, including Lock, Unlock,
Trunk, Panic and Remote Start. The RF receiver then sends received
messages to the BCM to activate functions directly or by sending a GMLAN
message.
The RF transmitter also communicates with the immobilizer base station via a
LF inductive link to authorize the vehicle to start. The transmitter contains a
unique ID code and a vehicle password that is used in a mutual
authentication process with the base station. A successful mutual
authentication is required before the vehicle engine is allowed to be started.
The transmitters will have different buttons (2, 3, 4 or 5) and different
frequencies. The 2 and 3 buttons versions are depopulated versions of the 4
button transmitter. The 5 button design is a same layout like the 4 button
transmitter but one micro switch is located at different positions.
The Vehicle Key Electronics shall provide the following functions:
1. Secure GM RF Link - the Vehicle Key Electronics shall provide for a secure
RF data link between customer-carried transmitters and the RF receiver. This
link shall be uniquely keyed to individual physical transmitter units, providing
both fixed and rolling codes.
2. Low Battery Monitoring and Communication - the Vehicle Key Electronics
shall provide the capability of determining that its battery has reached near its
end of useful life.
3. Replaceable battery - the Vehicle Key, including the Key Electronics, shall
support use of a replaceable CR2032 battery, with continued safe operation
after completion of battery replacement by the operator.
Continental Automotive GmbH
IC:7812D-5WK50073
IC:7812D-5WK50079
FCC ID:KR55WK50073
FCC ID:KR55WK50079
Buttons
The action is performed until:
- the button that triggered the test mode is pressed again
- timeout is reached (250ms)
- other button is pressed, in which case the action shall be stopped and
the corresponding action for the new button shall be started)
GM GLOBAL A Sw itch Description
Button Name
PCF 7941
(RKE function) Sw itch input
testpoint RKE command byte
Panic
Trunk2
Lock
EngineStart
Trunk1
Unlock
S021
S022
S023
S024
S025
S026
P10
P12
P11
P22
P21
P13
P021
P022
P023
P024
P025
P026
0x02
0x01
0x04
0x10
0x01
0x08
Transmitter Variants
Serial
Number
5WK5 0073
5WK5 0074
5WK5 0075
5WK5 0076
5WK5 0079
5WK5 0080
5WK5 0081
5WK5 0082
5WK5 0157
5WK5 0158
5WY64000
No
of button
Frequency
433,92
Switch number
314,90
S021
S022
S023
S024
S025
S026
Continental Automotive GmbH
IC:7812D-5WK50073
IC:7812D-5WK50079
FCC ID:KR55WK50073
FCC ID:KR55WK50079
Key Design
The key housing will be delivered with different logos.
Used Number
PCBA of
button
5WK5
0082
5WK5
0076
5WK5
0081
5WK5
0075
5WK5
0157
5WK5
0158
Top view
of the key
Possible branding’s on the button side
Flap
Key 2
Button
Flap
Key 3
Buttons
Flap
Key 3
Buttons
Flap
Key 4
Buttons
5WK5
0080
5WK5
0074
5WY6
4000
Flap
Key 4
Buttons
Flap
Key 4
Buttons
No picture
available at
the moment.
Is in design.
Continental Automotive GmbH
IC:7812D-5WK50073
IC:7812D-5WK50079
5WK5
0079
5WK5
0073
FCC ID:KR55WK50073
FCC ID:KR55WK50079
Flap
Key 5
Buttons
Transmission format
Modulation data rate:
Bit coding:
Transmission cycle:
1 KBaud
Bi- Phase Code
data protocol is transmitted five times after each
button press
Mechanical Design
Transponder
Low frequency (LF) magnetic field generated by the base station;
Emulated transponder within PCF7941ETT IC;
Carrier frequency: 125 kHz
Modulation:
ASK
Data rate:
4,0 kbps for Reading*
5,2 kbps for Writing*
Data coding:
Manchester for Reading
BPLM (Binary Pulse Length Modulation) for
Writing
Protocol:
Hitag2
* Reading means data transmission from the transponder to the
base station.
* Writing means data transmission from the base station to the
transponder.
Continental Automotive GmbH
IC:7812D-5WK50073
IC:7812D-5WK50079
FCC ID:KR55WK50073
FCC ID:KR55WK50079
UHF transmitter
314,90 MHz Variant, Countries: USA, Japan
Carrier frequency
Parameter
Carrier
frequency
Min
314.825MHz
Rated
314.90MHz
Max
314.975MHz
Carrier strength (measured in CW mode)
Country
USA
Japan
Carrier
frequency
314.90MHz
314.90MHz
Carrier strength
rated
tolerance
-14.6 dBm
±3dB
-14.6 dBm
±3dB
Modulation: ASK
Baud rate
Country
USA
Japan
Baudrate
Min
4.15k
Typ.
4.2k
Max
4.25k
Data coding: Manchester
Continental Automotive GmbH
IC:7812D-5WK50073
IC:7812D-5WK50079
FCC ID:KR55WK50073
FCC ID:KR55WK50079
433,92 MHz Variant, Countries: South Korea, China, Europe.
Carrier frequency
Parameter
Carrier
frequency
Min
433.845MHz
Rated
433.92MHz
Max
433.995MHz
Carrier strength (measured in CW mode)
Country
South Korea
China
Europe
Carrier
frequency
433.92MHz
433.92MHz
433.92MHz
Carrier strength
rated
tolerance
- 11.4 dBm
±3dB
- 11.4 dBm
±3dB
- 11.4 dBm
±3dB
Modulation: ASK
Data rate
Country
South
Korea,
China,
Europe
Baudrate
Min
4.15k
Typ.
4.2k
Max
4.25k
Data coding: Manchester
Power supply
Battery type: CR2032, 230mAh
Parameter
Battery voltage (VBAT)
Min
2.2V
Typ.
3V
Max
3.5V
Threshold for LVI (Low Voltage Indicator): 2.56V typical
Empty battery threshold (no RF transmission): 2.37V
typical
Continental Automotive GmbH
IC:7812D-5WK50073
IC:7812D-5WK50079
FCC ID:KR55WK50073
FCC ID:KR55WK50079
Technical Data
Operating voltage:
Battery voltage:
Low voltage indication:
Current consumption (transmitting):
Current consumption (inactive):
Battery:
Carrier frequency:
Type of modulation:
Baudrate:
2,2 V…3,5V
3V (nominal)
<2,37V
5 mA
 1 A
Lithium cell (CR2032)
433.92 MHz & 314,90 MHz (75 KHz)
Bi- Phase Code
1 kBaud
Label Design /Owner Manual
EU:
Continental
5WK50079
Canada:
Continental
5WK50079
Continental
5WK50073
IC:7812D-5WK50079
IC:7812D-5WK50073
Owner Manual:
Operation is subject to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.
FCC:
Continental
5WK50079
Continental
5WK50073
FCC ID:KR55WK50079
FCC ID:KR55WK50073
Owner Manual:
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.

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Creator Tool                    : Microsoft Word - Functional_Description-Global-A_Flap-Key_v02.doc
Create Date                     : 2010:05:20 16:19:23+01:00
Modify Date                     : 2010:05:20 16:20:00+02:00
Title                           : Microsoft Word - Functional_Description-Global-A_Flap-Key_v02.doc
Creator                         : uid04444
Author                          : uid04444

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