Audi V8 Service page 45

In the Audi A8, data between the engine
control unit and the other control units is,
with the exception of a few interfaces,
exchanged via the CAN system.
The system overview shows the information
which is provided by the engine control unit
via the CAN bus, and received and used by
the connected control units.
The following two examples simplify the
complexity of the CAN bus network.
Selector lever lock:
Brake light switch
F/F47
Kickdown (for example, Audi A6):
Accelerator pedal module
G79/G185
Information which is sent by
the engine control unit.
Detailed information concerning the
CAN data bus can be found in
SSP 186.
Engine control
unit J220
Gearbox control unit
J217
Information which is received
and evaluated by the engine
control unit.
Selector lever lock
solenoid N110
Engine control unit
J220
Gearbox control unit
J217
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