Volkswagen Transporter 2004, Программа самообучения

Страница: 52 / 64

52
The data bus network
Description
The control units of the Volkswagen Transporter
are connected to each other via the CAN data
bus network.
The network makes it possible to exchange data
between the control units.
Information is sent via the CAN data bus in digi-
tal form instead of via discrete cable connec-
tions.
This makes it possible for other control units to
access the information.
The CAN data bus is split into two single systems,
the drive train CAN data bus and the conveni-
ence CAN data bus.
Both bus systems are connected to each other via
the data bus diagnosis interface (Gateway) J533
in the dash panel insert and this allows the
exchange of data.
Electrical system
90
I30 50 0
310_135
Diagnosis
interface
Drive train CAN
data bus (DM)
Convenience
CAN data bus (CM)
CAN data
bus line
J533
J285
G24
J503
J255
E87
J136
J393
J623