Iveco Stralis AT/AD. Manual — part 289
I.6
GENERAL
S
TRALIS
AT/AD
Base - January 2003
The cables used for the various CAN lines in the vehicles are twisted, to eliminate electrical disturbances on the signals.
Sheath are identified by different colors, as follows:
- BLACK
VDB
- GRAY
BCB
- GREEN
ICB / IDB
73652/A
A. Black/gray/green sheath - B. White/green twisted wires
A
B
GENERAL
I.7
S
TRALIS
AT/AD
CAN line efficiency tests
Measurements are required to test CAN line efficiency, to perform which connector J2 must be disconnected from
the BODY COMPUTER and a multimeter inserted in the related pins.
Values to detect during measurements (VDB - BCB)
0
Ω
~ 60
Ω
~ 120
Ω
O.L.
0 CAN line in short circuit
CAN line OK
One resistor cut
CAN line cut
Values to detect during measurements (ICB)
0
Ω
~ 120
Ω
O.L.
O.L.
0 CAN line in short circuit
CAN line OK
Resistor cut
CAN line cut
Pin 1 - 2
ICB line
Pin 3 - 4
VDB line
Pin 10 - 12
BCB line
7
12
1
6
J2
I.8
GENERAL
S
TRALIS
AT/AD
Base - January 2003
An emergency procedure called LIMP HOME guaranteeing the following functions is activated in case of CAN BCB
line cutting:
Body Computer
-
Front position and profile lights
-
Switch lighting
-
Instrument lighting
-
+15 putouts
-
Low speed wiper
-
Windshield heating
DDM and PDM
Rearview mirror heating
FFC
-
Left and right dipped headlights
-
Left and right front direction indicators
-
Fan control output
-
+15 output
RFC
-
Left and right rear position lights
-
Left and right rear direction indicators
-
Left and right rear trailer direction indicators
-
+15 output
GENERAL
I.9
S
TRALIS
AT/AD
Vehicle Data Bus VDB communication line
Enables dialog between the various vehicle electronic systems and cab to be compared to the 10 CAN line. The centers
connected to it are: EDC, Transmission, Intarder, EBS, Ecas, Immobilizer, Rev counter.
This line also dialogs with the Cluster and the Body Computer.
Interconnections between 30 poles and diagnosis system centers
Features
-
Data transmission speed in BIT/SEC
250,000
-
Number of ECUs connected
3
÷ 8
-
Cable colour
black
V.D.B
73683
73684
I.C.
B.C.
IMMOB
REV COUNTER
VDI
EDC
INTARDER
EBS
ECAS
EDC
EBS + ECAS
INTARDER
IMMOBILIZER
GEARBOX
MULTIPLEX
CENTRAL UNITS
30
poles
GEARBOX
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