27
The bus topology - as with the complete electrical
system - is heavily based on the Audi A4 ‘01. As
before, the gateway is integrated in dash panel
insert J285. To diagnose on the driveline CAN bus
the control units adopted from the Audi A3 and Audi
A6, the driveline CAN bus is connected directly to
the diagnosis plug. The control units on the
convenience CAN bus and on the infotainment
CAN bus are also diagnosed via the K and
L wires (see also chapter "Diagnosis", page 10).
Legend
G85 Steering angle sender
G397 Rain and light detector sensor
G419 ESP sensor unit
J104 ABS with EDL control unit
J136 Seat and steering column adjustment control
unit with memory
J217 Automatic gearbox control unit
J234 Airbag control unit
J255 Climatronic control unit
J285 Control unit with display in dash panel insert
J345 Trailer detection control unit
J364 Additional heater control unit
J386 Driver door control unit
J387 Front passenger door control unit
J388 Rear left door control unit
J389 Rear right door control unit
J393 Convenience system central control unit
J401 Operating electronics control unit, navigation
J431 Headlight range control, control unit
J446 Parking aid control unit
J453 Multi-function steering wheel control unit
J502 Control unit for tyre pressure monitoring
J519 onboard power supply control unit
J527 Steering column electronics control unit
J623 Engine control unit
J667 Power output module for left headlight
J668 Power output module for right headlight
J706 Seat occupied recognition control unit
RRadio
R36 Telephone transmitter and receiver unit
R41 CD changer
R78 TV tuner
R146 Satellite radio (SDARS)
Driveline CAN bus:500 kBaud
Convenience CAN bus:100 kBaud
Infotainment CAN bus:100 kBaud
LIN
K-wire
L-wire
Panasonic bus
Various subbus systems
343_001
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