Volkswagen Golf 2014 Service Training page 46

The diagnostic interface for data bus J533 connects
the individual CAN data bus systems. It is also the
master in the energy management LIN network and
for the multifunction steering wheel control unit
(J453).
For the very first time, the control unit for the dash
panel insert J285 is connected to the convenience
CAN bus in the Golf.
The control units for the driver assist systems are
connected to the extended CAN bus. These, in turn,
feature two sub-CAN data bus systems:
• Sensor Fusion (SF) CAN bus between the adaptive
cruise control unit J428 and the front camera for
driver assist systems R424.
• Cornering light CAN bus (Advanced Frontlighting
System, AFS) between the cornering light and
headlight range control unit J745 and the output
modules for the headlights J667 and J668.
J794 Control unit for information electronics
(connected to R and series display J685 on the
infotainment CAN bus)
R Radio (connected to J794 and series display J685
on the infotainment CAN bus)
R189 Reversing camera
R242 Front camera for driver assist systems
(connected to J844)
T16 16-pin connector
CSCC Colour video blanking sync signal;
"Colour TV line"
LVDS Low voltage differential signalling;
standard interface for high speed data
transmission
AFS Cornering light CAN data bus
SF Sensor fusion CAN bus
In the infotainment CAN bus, the display unit for front
information display and operating control unit J685 is
connected to the control unit for information
electronics J794 by a new, subordinate data bus
system, the MIB CAN bus and a low voltage
differential signalling (LVDS) line (depending on
equipment version).
Powertrain CAN bus
Running gear CAN bus
Extended CAN bus
Convenience CAN data bus
Infotainment CAN bus
LIN data bus
CAN bus line
LIN data bus line
45