Audi A5 Service Training

16
Seat control units
Introduction
Electrically adjustable seats and a seat memory are
available as optional equipment for the new Audi
A5. The seat memory will only be available for the
driver's seat on the Audi A5. It allows various posi-
tions of the driver seat and the two door mirrors to
be stored.
If electrically adjustable seats are ordered, they
automatically have a seat control unit in the driver
and front passenger seats. In other vehicle models,
seat control units are required only in combination
with the optional seat memory.
The electrically adjustable basic and sports seats
have the following 5 adjustment motors:
1 Longitudinal seat adjustment motor
2 Seat height adjustment motor
3 Seat angle adjustment motor
4 Backrest adjustment motor
5 Head restraint adjustment motor
The Super sports seat has fixed head restraints and
therefore has only four adjustment motors.
Seat memory
Stored settings
The following settings are stored by pressing the
Save button on the driver side memory block by
locking the vehicle with the remote control key:
– Actual position of left and right exterior mirrors
– Actual positions of the 5 driver seat adjustment
motors
The driver side control unit J136 can store up to six
different settings. Two settings can be stored with
the Save buttons, and another four with different
remote control keys.
The ON/OFF switch
The basic requirement for all memory operations as
well as convenience functions such as seat symme-
try, comfort side view and seat adjustment with the
easy entry switch is that the ON/OFF switch of the
memory block is at "ON".
The position of this switch is read in by driver door
control unit J386 and transferred the control unit via
the CAN bus. However, the switch position is also
hard wired through the driver door control unit and
from here to the seat control unit ("emergency OFF
line" in the electrical system overview).
If the switch is at "OFF", a hardware device prevents
switching of the power modules for motor activa-
tion, which means that no adjustments can be
made. If the switch is at "ON" and if adjustments are
being made, all adjustments are aborted immedi-
ately when the OFF switch is actuated.
Seat control units
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Audi A5 Specifications

General

Brand	Audi
Model	A5
Category	Automobile
Language	English