Audi A4 2001 - CAN BUS Network Architecture

38
Electrical system
NOX sensor
(USA only)
Diagnosis system
CAN BUS networking
The ignition switch signals and the
control buttons for multifunction
and "tiptronic" steering wheel are
registered via the steering column
electronics.
G85
J162
J502
R99
J401
Gate-
way
J220
J234
J387
J386
J388
J389
J393
J217
J104
J453
J446
J402
E87
J519
J136
J345
J526
J499
J507
J527
J285
R94
TRACK
SEEK
CD CDC
AM
FM
1
DOLBY SYSTEM
2
12
TAPE
PLAY SDE
BASS MIDDLE TREBLE BALANCE FADER
123456
EJECT
Audi symphony
AS
TP
RDS
RANDOM
FR FF
TUNE SCAN
EJECT
R
J527
R
T
+
-