Volkswagen The Golf 2004 Service Training page 8

Introduction
Control units in drivetrain CAN data bus
Control units and fitting locations
The adjacent illustration shows the control units
of the drivetrain CAN data bus and associated
fitting locations.
The data is transferred at a rate of 500 kbit/s.
Transfer is made via the orange/black CAN high
wire and orange/brown CAN low wire.
To guarantee data transfer without conflict or
interference, the CAN wires are twisted
together.
ABS with EDL control unit J104,
on right of bulkhead in engine
compartment
8
Motronic control unit J220,
under plenum chamber cover
Airbag control unit J234,
beneath centre console,
on front of tunnel