Continental Automotive 5WK50073 Keyless Car Entry User Manual
Continental Automotive GmbH Keyless Car Entry
Contents
- 1. user manual
- 2. annex to user manual
user manual
IC:7812D
-
5WK50073
FCC ID:KR55WK50073
IC:7812D
-
5WK50079
FCC ID:KR55WK50079
Continental Automotive GmbH
1
User Manual / Functional
Description
of the
Continental
RF Transmitter
Global A Flap Key
Type
5WK50079
5WK50073
IC:7812D
-
5WK50073
FCC ID:KR55WK50073
IC:7812D
-
5WK50079
FCC ID:KR55WK50079
Continental Automotive GmbH
2
General System Description
The RF
-
remote control system is a subsystem of a Body Computer Module
(BCM) for an aut
omotive 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. I
t 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 a
ctivate 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 tha
t 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. Th
e 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 follo
wing functions:
1. Secure GM RF Link
-
t
he 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
-
t
he Vehicle Key Electronics
shall provide the capability of determining that its battery has reached near its
end of useful life.
3. Replaceable battery
-
t
he Vehicle Key, including th
e Key Electronics, shall
support use of a replaceable CR2032 battery, with continued safe operation
after completion of battery replacement by the operator.
IC:7812D
-
5WK50073
FCC ID:KR55WK50073
IC:7812D
-
5WK50079
FCC ID:KR55WK50079
Continental Automotive GmbH
3
Buttons
The action is performed until:
-
the button that triggered the test mode is pressed a
gain
-
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)
Button Name
(RKE function)
Sw itch
PCF 7941
input
testpoint
RKEcommand byte
Panic
S021
P10
P021
0x02
Trunk2
S022
P12
P022
0x01
Lock
S023
P11
P023
0x04
EngineStart
S024
P22
P024
0x10
Trunk1
S025
P21
P025
0x01
Unlock
S026
P13
P026
0x08
GM GLOBAL A Switch Description
Transmitter Variants
Frequenc
y
Switch number
Serial
Number
No
of button
433,92
314,90
S021
S022
S023
S024
S025
S026
5WK5 0073
5
X
X
X
X
X
X
5WK5 0074
4
X
X
X
X
X
5WK5 0075
3
X
X
X
X
5WK5 0076
2
X
X
X
5WK5 0079
5
X
X
X
X
X
X
5WK5 0080
4
X
X
X
X
X
5WK5 0081
3
X
X
X
X
5WK5 0082
2
X
X
X
5WK5 0157
3
X
X
X
X
5WK5 0158
3
X
X
X
X
5WY64000
4
X
X
X
X
X
IC:7812D
-
5WK50073
FCC ID:KR55WK50073
IC:7812D
-
5WK50079
FCC ID:KR55WK50079
Continental Automotive GmbH
4
Key Design
The key housing will be delivered with different logos.
Used
PCBA
Number
of
button
Top view
of the key
Possible branding’s on the button side
5WK5
00
82
5WK5
0076
Flap
Key 2
Button
5WK5
0081
5WK5
0075
Flap
Key 3
Buttons
5WK5
0157
5WK5
0158
Flap
Key 3
Buttons
Flap
Key 4
Buttons
5WK5
0080
5WK5
0074
Flap
Key 4
Buttons
5WY6
4000
Flap
Key 4
Buttons
No picture
available at
the moment.
Is in design.
IC:7812D
-
5WK50073
FCC ID:KR55WK50073
IC:7812D
-
5WK50079
FCC ID:KR55WK50079
Continental Automotive GmbH
5
5WK5
0079
5WK5
0073
Flap
Key 5
Buttons
Transmission format
Modulation dat
a rate:
1 KBaud
Bit coding:
Bi
-
Phase Code
Transmission cycle:
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 with
in 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.
IC:7812D
-
5WK50073
FCC ID:KR55WK50073
IC:7812D
-
5WK50079
FCC ID:KR55WK50079
Continental Automotive GmbH
6
UHF transmitter
314,90 MHz Variant, Countries: USA, Japan
Carrier frequency
Parameter
Min
Rated
Max
Carrier
frequency
314.825MHz
314.90MHz
314.975MHz
Carrier strength (measured in CW mode)
Carrier strength
Country
Carrier
frequency
rated
tolerance
USA
314.90MHz
-
14.6 dBm
±3dB
Japan
314.90MHz
-
14.6 dBm
±3dB
Modulation: ASK
Baud rate
Baudrate
Country
Min
Typ.
Max
USA
Japan
4.15k
4.2k
4.25k
Data coding: Manchester
IC:7812D
-
5WK50073
FCC ID:KR55WK50073
IC:7812D
-
5WK50079
FCC ID:KR55WK50079
Continental Automotive GmbH
7
433,92 MHz Variant,
Countries: South Korea, China, Europe.
Carrier frequency
Parameter
Min
Rated
Max
Carrier
frequency
433.845MHz
433.92MHz
433.995MH
z
Carrier strength (measured in CW mode)
Carrier strength
Country
Carrier
frequency
rated
tolerance
South Korea
433.92MHz
-
11.4 dBm
±3dB
China
433.92MHz
-
11.4 dBm
±3dB
Europe
433.92MHz
-
11.4 dBm
±3dB
Modulation: ASK
Data rate
Baud
rate
Country
Min
Typ.
Max
South
Korea,
China,
Europe
4.15k
4.2k
4.25k
Data coding: Manchester
Power supply
Battery type: CR2032, 230mAh
Parameter
Min
Typ.
Max
Battery voltage (VBAT)
2.2V
3V
3.5V
Threshold for LVI (Low Voltage Indicator): 2.56V ty
pical
Empty battery threshold (no RF transmission): 2.37V
typical
IC:7812D
-
5WK50073
FCC ID:KR55WK50073
IC:7812D
-
5WK50079
FCC ID:KR55WK50079
Continental Automotive GmbH
8
Technical Data
Operating voltage:
2,2 V…3,5V
Battery voltage:
3V (nominal)
Low voltage indication:
<2,37V
Current consumption (transmitting):
5 mA
Current consumption (inacti
ve):
1
A
Battery:
Lithium cell (CR2032)
Carrier frequency:
433.92 MHz & 314,90 MHz (
75 KHz)
Type of modulation:
Bi
-
Phase Code
Baudrate:
1 kBaud
Label Design /Owner Manual
EU:
Continental
5WK50079
Canada:
Continental
Continental
5WK50079
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 inte
rference
that may cause undesired operation.
FCC:
Continental
Continental
5WK50079
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.