Continental Automotive Technologies 5WK49385 Inductive System, Vehicle Immobilizer User Manual
Continental Automotive GmbH Inductive System, Vehicle Immobilizer
user manual

Annex No.5 
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Functional description 

SIEMENS VDO Automotive    SV C BC P2 RF 
 IC:267T-5WK49385                                                FCC ID:KR5 5WK49385 
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 Functional Description 
 Homologation Board 
SKE ECU 
5WK49385 

SIEMENS VDO Automotive    SV C BC P2 RF 
 IC:267T-5WK49385                                                FCC ID:KR5 5WK49385 
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1.1.  BLOCKDIAGRAM HOMOLOGATION BOARD 

SIEMENS VDO Automotive    SV C BC P2 RF 
 IC:267T-5WK49385                                                FCC ID:KR5 5WK49385 
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1.2.  FUNCTIONAL DESCRIPTION OF HOMOLOGATION BOARD 
The homologation board is performed to activate different functions of the SKE 
Module 
via Software. You must only connect the plus and the minus plug to a battery (normal 
operating voltage is Vbat = 13,5 V ± 0.2 V) or a power supply and the ECU starts 
sending the LF telegrams in the following order: 
Int. group  => int. front  > int. rear > Int. trunk > Int. front ...  
Ext. group => ext.FL > ext. FR > ext. bumper > ext.FL ... 
Every group has a time slot of 150ms. After this time, the Software changes 
automatically the sending group. 
In case of malfunction, disconnect the power supply, wait 3 seconds and connect it 
again. 
The test will be done with SKE for J61A (v01) 
2.  FUNCTIONAL DESCRIPTION OF THE MEASUREMENT SYSTEM 
The test setup comprises the following components: 
- SKE Control unit 
- 6 induktive ferrite antennas  
- Board for radio homologation measurements (including Wiring harness) 
- Key (normal Mode) to verify the function (if attached/required) 
- Test box 
2.1.  FUNCTIONAL DESCRIPTION OF THE MEASUREMENT SYSTEM 
The entire setup is supplied with power via the two banana jacks on the test box: 
Banana jack, red : +12V DC 
Banana jack, black : GND (ground) 
The current input (in case of operation) is 
min 0,3A/ max 0,8A av. ( min 1,5App/max 8App) 
"Main" switch: 
"Main" switch on: control unit is powered and the green LED is lighting 
"Main" switch off: control module is unpowered 
Switches "Ext" and "Int" 
"Ext" on, "Int" off: selects functional test and test of emission of external antenna 
"Ext" off, "Int" on: selects test of emission of internal antenna 
"Ext" off, "Int" off: no mode selected 
"Ext" on, "Int" on: no operation is possible when both switches are turned on 
2.2.  FUNCTIONAL TEST 
1. Select "main" switch on 

SIEMENS VDO Automotive    SV C BC P2 RF 
 IC:267T-5WK49385                                                FCC ID:KR5 5WK49385 
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2. green LED is lighting 
3. Turn the switch "ext" on ( make sure switch "int" is off ) 
4. Place the Id-key (normal Mode) within the marked square on the board. It will 
receive the inductive telegram and answer via RF. 
5. If an RF telegram from the ID- key is received by the control module, the red 
LED is flashing for 200ms. 
6. As soon as the ID-Key is brought out of range (use 5m) the red LED will stop 
flashing. 
2.3.  TEST OF EMISSION OF THE EXTERIOR ANTENNA 
1. Select "main" switch on 
2. Green LED is lighting 
3. Turn the switch "ext" on ( make sure switch "int" is off ) 
4. The control module sends typical every 600ms an inductive telegram via the 
exterior antenna 
5. Measure the emission 
6. After the test switch the switch "ext" and the main switch off. 
2.4.  TEST OF EMISSION OF THE INTERIOR ANTENNAS 
1. Select "main" switch on 
2. Green LED is lighting 
3. Switch the switch "int" on (make sure switch "ext" is off ) 
4. The control module sends every 600ms an inductive telegram via the interior 
antenna 
5. Measure the emission 
6. After the test switch the switch "int" and the "main" switch off.