warning AUDI A4 2001 B5 / 1.G Technical Features Design And Function

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In the basic version without rear electric win-
dow lifters, central locking control of the rear
doors is assumed by the central convenience
electronics.
Convenience system
The convenience system previously used in
the Audi A2 is also used in the Audi A4.
In the series version, the following additional
functions
– Door warning lights
– Radio remote control
and in the optional version, the following
functions
– Anti-theft alarm with interior monitor and
towing protection (new)
– Electric sliding/tilting/glass sun roof
– Footwell lights
– Exit lights
– Mirror fold-in function
– Mirror memory function
are included in the Audi A4.
Electrical system
Central convenience unit J393
Door control unit,
passenger’s side J387 Door control,
driver’s side unit
J386
Door control unit,
rear right J389
(optional) Door control unit,
rear left J388
(optional)
SSP254_132

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The following information and functions
are processed in the central convenience
electronics:
Crash signal
(from airbag control unit J234)
Handbrake switch F9
Tailgate release
– Button for release, tailgate lock
cylinder F248
– 3. Remote control button
– Switch for tailgate to F206
– Switch for central locking, tail-
gate F218
Anti-theft alarm (optional)
– Contact switch for bonnet F266
– Ultrasonic sensor for anti-theft
alarm G209
Aerial for remote control,
Central locking and anti-theft
alarm in multi-communication bar
Reversing lamp M17
When mechanical window lifters
fitted in rear
– Door contact signal
– Locking signal
– Safe signal
for rear doors
Fuel filler flap
– Motor for tank cap locking V155
Tailgate
– Motor for tailgate release V139
Anti-theft alarm (optional)
– Horn for anti-theft alarm H8
(sounder)
– Turn signal lights via data bus to
vehicle electrical system con-
trol unit J519
Interior light control
– Dimming of interior lighting
– Footwell light switching
(optional)
– Luggage compartment lamp
switching
Automatic closing/opening
– Window lifters via door control
units
– Sun roof
When mechanical window lifters
fitted in rear
– Lock rear door lock motors
– Safe rear door lock motors
– Activation of rear entry lights
(optional)
– Activation of rear door warning
lights
Enabling of door control units and
sunroof
Gateway function for diagnosis
– Control unit for vehicle electrical
system J519
– Steering column switch module
J527
Sensors Actuators Central convenience electronics (CCE)

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Door control units
The door control units integrated in the
window lifter motors process the following
signals:
Window lifter switches
Enabling via the CCE
Door lock feedback signal
– Door contact signal
– Locked signal
– Safe signal
for driver’s door also
– Lock cylinder switch unlocking/
locking F241
– Interior central locking switch
F59
– Switch for childproof lock E254
(optional)
– Central window lifter operation
– Mirror adjustment switching E48
– Switch for mirror adjustment E43
– Switch for mirror fold-in function
(optional) E263
– Switch for unlocking luggage
compartment (USA) E164
– Switch for seat memory, driver’s
side (optional) E263
– Switch for interior monitor E183
(optional)
– Inclination sensor switch
(optional)
for front doors also
– Mirror release switch (optional)
– Sender for mirror position for
mirror memory (optional)
Door locking and unlocking
Safe activation and deactivation of
the doors
Activation of illumination in the
doors
– Entry lights (optional)
– Door opener illumination
(optional)
– Door warning lights
– Switch illumination
for front doors also
– Electric mirror adjustment
– Mirror heating
– Mirror fold-in function
– Mirror memory
for driver’s door also
– Control of indicator LED
– Inclination sensor LED switched
off (optional)
– LED, interior monitoring
– LED, childproof lock
additionally for passenger's door
– Mirror for reversing (optional)
Sensors Actuators
Electrical system