Control Unit For Vehicle Electrical System - Audi A4 2001 Owner's Manual

Electrical system
Control unit for vehicle
electrical system J519
The control unit for vehicle electrical system
J519 is the newly developed electronic central
electrics and comprises a comprehensive
self-diagnosis, which can be selected directly
with address word 09.
The control unit for vehicle electrical system
receives the input signals from the conven-
ience CAN BUS via the steering column
switch module or the rotary light control.
Control unit for
speech entry J507
Power supply
Hazard warning lights switch E3
Rotary light control E1
Steering col-
umn electron-
ics J527
48
Control unit for
vehicle electri-
cal system J519
Dash panel insert J285
The power connections for the individual con-
sumers are driven via semi-conductor ele-
ments, e.g. transistors.
A separate supply is not required, as this is
provided by the internal electronics in the
event of a fault.
Control unit for trailer
recognition J345
J4
Dual tone-
horn H2/H4
Wiper system
Lighting system
Relay for
X contact J18
SSP254_068