Audi A3 Sportback, Сервисная инструкция, Страница: 47 / 60

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1 Onboard power supply control unit J519
The control unit has been adapted for the Audi
A3 Sportback to the new function "rain and light
detector sensor G397" as well as the modified
rear lights design.
2 Rain and light detector sensor G397
The combined sensor is already known from the
Audi A6´05, and is connected via the LIN data bus
to the onboard power supply control unit J519.
Adaption of the specific windscreen type is
carried out by coding the sensor using the
diagnostic tester. Then the coding is sent via the
onboard power supply control unit to the sensor,
where it is saved to memory.
3 Steering column electronics control unit J527
The control unit has been modified for use of the
new multifunction steering wheels. The
multifunction steering wheel is encoded in the
steering column electronics control unit and
communicates with the control unit across the
LIN bus.
4 Convenience system central control unit J393
The control unit familiar from the Audi A3´04 has
new software for use in the Audi A3 Sportback.
The master function for central locking control
has been extended to include the rear doors.
5 Rear door control units
In the Audi A3 Sportback, the rear doors are
equipped with door control units which are
networked via
the convenience CAN bus. The control units
activate the central locking, the window lifter
motor and the button lighting. If the vehicle is
equipped with the optional lighting package, the
entry lights, door reflector lights and door inner
handle lights will also be energised.
Reference
You will find further information about the
rain and light detector sensor in SSP 326
Audi A6 ´05 - Electrical System.
332_043