Volkswagen The Golf 2004 Service Training page 14

Introduction
The control units in the dash panel insert CAN data bus and in the diagnosis
CAN data bus
Dash panel insert CAN data bus
Information is exchanged via the dash panel
insert CAN data bus between the dash panel
insert control unit and the data bus diagnostic
interface. These are the only control units in this
data bus system.
Diagnosis CAN data bus
The transfer of data between the diagnosis tester
VAS 5051/5052 and the data bus diagnostic
interface is via the diagnosis CAN data bus.
Dash panel insert control unit J285
Rate of data transfer
The rate at which data is transferred is
500 kbit/s for both CAN data buses.
14