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Diesel Version
The Immobilizer System consists of an electronic device with integrated coil, called 'Active Antenna', the crypto
transponder, which is integrated in the ignition key, and the Immobilizer-Control-Unit (ICU).
The Active Antenna is mounted at the ignition lock and handles the following tasks :
to supply the transponder with power
to receive the data from the ICU and transmit it to the transponder
to receive and demodulate the data from the transponder and transmit it to the ICU
The whole Immobilizer software, the authentication and the management of valid keys and controlling the fuel valve
is managed completely by the ICU.
Immobilizer System for Diesel Vehicles
Connector
- Immobilizer unit
16
15
14
13
12
8
7
6
5
4
1 : Data out
3 : Data in
7 : Data line
8 : K-Line
Wire circuit diagram
3
Antenna
4
2
1
11
10
9
3
2
1
6 : Ground
9 : IGN
1
Immo.
unit
3
8
6
9
K-line (Diagnosis)
- Solenoid valve
1
2
1 : IGN (Brown)
2 : Code (Green)
3 : Ground (Black)
7
2
Solenoid
IGN
IMMOBILIZER SYSTEM 9W-5
Solenoid Fuel Valve
3
valve
3
1
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