Audi A4 2001 Owner's Manual page 42

Electrical system
A new feature of the Auto-Check system
is the position-dependent bulb monitor display.
The fault message is transmitted from the vehi-
cle electrical system control unit J519, via the
convenience data bus, to the dash panel insert
J285 and appears on the centre display.
Convenience data
bus
The Audi A4 quattro is equipped with two fuel
gauge senders G and G169.
Sender G registers the lower, and sender
G169 the upper partial volume in the fuel
tank.
The signals from senders G and G169 are
evaluated separately. The calculated litre
values are then added and displayed.
42
Control unit with
display unit in dash
panel processor J285
Control unit for vehicle
electrical system J519
SSP254_125
SSP254_118
Fuel gauge Fuel gauge
sender G sender 2, G169
SSP254_123