Iveco Stralis AT/AD. Manual — part 322
III.72
ELECTRONIC SYSTEMS
S
TRALIS
AT/AD
Base - January 2003
It is directly assembled on heater body and is interfaced with vehicle through a 14-pin connector.
It is connected to CAN BCB line.
It has a very advanced diagnostic system and transmits possible error codes on vehicle Cluster.
Pin
Cable
Function
A1
7506
Positive from water cock knob manual version (25% position)
A2
7711
Positive from boiler activating switch
A3
Ws/Bi
CAN H line
A4
7775
Positive for ambient thermostat control (manual version)
B1
Gn/ve
CAN H line
-
-
-
B3
2296
Diagnosis K line
B4
6605
Positive for cabin/engine heating key warning light
-
-
-
C2
7708
Direct positive from battery
C3
0000
Direct negative
C4
7783
Positive for fuel batching pump control
-
-
-
-
-
-
ELECTRONIC SYSTEMS
III.73
S
TRALIS
AT/AD
IMMOBILIZER
Description and operation
Vehicles are provided with an immobilizer engine lock that is activated automatically by removing the starter key, to
increase protection against theft. Keys are provided with an electronic transponder that transmits a coded signal to an
ICU centre that only enables engine start at code recognition.
General features
System composition
The system can be summarised as consisting of the following main components:
D
Immobilizer central unit ICU
D
2 steering lock keys with integrated transponder
D
Antenna on the ignition circuit breaker
D
EDC fuel flow actuator
D
Code-card with mechanical and electronic PIN code
Installation
The system requires the following installation steps for proper operation:
D
Learning key use
D
Learning actuation function
At operation end, the immobilizer centre is enabled to recognise any mishandling by recognising its univocally and insep-
arable components.
Operating principle
With the key on START, the transponder contained inside the keys generates a code received by the immobilizer centre
remote control switch via the antenna.
The immobilizer centre sends the code received by the antenna to the EDC centre, whose actuator decodes and com-
pares it with data stored during the installation process. Ignition is enabled if the code is found to be exact.
Three keys are provided, two of which with a transponder integrated into the handle and a mechanical one without
a transponder.
If the engine is started with the latter key, a request for an electronic code password is displayed on the cluster.
Follow the instructions given on diagnosis tool displays for key hang-up.
49523
III.74
ELECTRONIC SYSTEMS
S
TRALIS
AT/AD
Base - January 2003
Componentry
Ref.
Description
1
Immobilizer control centre
2
Code-card
3
Electronic key
4
Antenna
5
Cluster
6
Electro injectors
7
EDC injection control electronic centre
8
IMMOBILIZER down warning light
9
Body Computer
74251
ELECTRONIC SYSTEMS
III.75
S
TRALIS
AT/AD
Immobilizer electronic centre
Ref.
Description
1
Antenna
A 2
Antenna
3
-
1
CAN - L (VDB) line
2
K line for 30-pole Pin 2 diagnosis connector
3
Immobilizer down warning light cluster
B 4
CAN - H (VDB) line
5
-
6
Mass
7
+15P power supply positive under key
8
-
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