2001 AUDI A4 fuse diagram

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46
Auxiliary signals
1 CAN screen drive
2 Emergency vehicle distress radio
3 Emergency vehicle radio
4 Cruise control system on/off
5 CAN low convenience
6 CAN high convenience
7 CAN low drive
8 CAN high drive
9 Ignition lock terminal 75
10 Ignition lock S contact
11 Ignition lock terminal 15
12 Ignition lock terminal 50
13 Ignition lock terminal P
X
Y Connection within the functional
diagram
Z
Electrical system
Functional diagram
Steering column switch
module
(maximum equipment)
Components
E Windscreen wiper switch
E2 Turn signal switch
E45 CCS switch
E221 Operating unit in steering wheel
G85 Steering angle sender
H Horn actuation
J234 Airbag control unit
J453 Control unit for multi-function
steering wheel
J527 Control unit for steering column
electronics
S Fuse
Z36 Heated steering wheel
Colour coding
= Input signal
= Output signal
= Positive power supply
= Earth
= CAN-BUS
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50
Auxiliary signals
1 CAN high convenience
2 CAN low convenience
3 Terminal 75
4 not fitted with trailer coupling
5 only with trailer coupling
6 Automatic gearbox "multitronic"
7 Manual gearbox
A
U
X
Y
Z
Electrical system
"lowline" version
Components
E1 Light switch
E3 Hazard warning light switch
F Brake light switch
F4 Reversing light switch
F216 Contact switch for switchable
rear fog lights
H2 Treble horn
H7 Bass horn
J4 Relay for dual tone horn
J59 Load-reduction relay for x contact
J345 Control unit for trailer recognition
J446 Control unit for parking aid
J519 Control unit for vehicle electrical
system
L22 Bulb for fog light, left
L23 Bulb for fog light, right
L46 Bulb for rear fog light, left
L47 Bulb for rear fog light, right
M1 Bulb for side light, left
M2 Bulb for rear light, right
M3 Bulb for side light, right
M4 Bulb for rear light, left
M5 Bulb for turn signal light, front left
M6 Bulb for turn signal light, rear left
M7 Bulb for turn signal light, front right
M8 Bulb for turn signal light, rear right
M9 Bulb for brake light, left
M10 Bulb for brake light, right
M16 Bulb for reversing light, left
M17 Bulb for reversing light, right
M18 Bulb for side turn signal light, left
M19 Bulb for side turn signal light, right
M25 Bulb for high-level brake light
M29 Bulb for dipped beam headlight, left
M30 Bulb for main beam headlight, left
M31 Bulb for dipped beam headlight, right
M32 Bulb for main beam headlight, right
S Fuses
U10 Socket for trailer operation
V Windscreen wiper motor
V5 Windscreen washer pump
Colour coding
= Input signal
= Output signal
= Positive power supply
= Earth
= CAN-BUS
V11 Pump for headlight washer
conditioning system
V48 Servo motor for headlight range
control, left
V49 Servo motor for headlight range
control, right
X Number plate lights
Connection within the
functional diagram

Functional diagram
Control unit for vehicle
electrical system J519
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52
Auxiliary signals
1 CAN high convenience
2 CAN low convenience
3 Terminal 75
4 Terminal 31
U Connection within the functional
diagram V11 Pump for headlight washer
conditioning system
V48 Servo motor for headlight range
control, left
V49 Servo motor for headlight range
control, right
X Number plate light
"highline" version
Components
E1 Light switch
E3 Hazard warning light switch
F Brake light switch
F216 Contact switch for switchable
rear fog lights
H2 Treble horn
H7 Bass horn
J4 Relay for dual tone horn
J59 Load-reduction relay for x contact
J345 Control unit for trailer recognition
J446 Control unit for parking aid
J519 Control unit for vehicle electrical
system
L22 Bulb for fog light, left
L23 Bulb for fog light, right
L46 Bulb for rear fog light, left
L47 Bulb for rear fog light, right
M1 Bulb for side light, left
M2 Bulb for rear light, right
M3 Bulb for side light, right
M4 Bulb for rear light, left
M5 Bulb for turn signal light, front left
M6 Bulb for turn signal light, rear left
M7 Bulb for turn signal light, front right
M8 Bulb for turn signal light, rear right
M9 Bulb for brake light, left
M10 Bulb for brake light, right
M16 Bulb for reversing light, left
M17 Bulb for reversing light, right
M18 Bulb for side turn signal light, left
M19 Bulb for side turn signal light, right
M25 Bulb for high-level brake light
M29 Bulb for dipped beam headlight, left
M30 Bulb for main beam headlight, left
M31 Bulb for dipped beam headlight, right
M32 Bulb for main beam headlight, right
S Fuses
U10 Socket for trailer operation
V Windscreen wiper motor
V5 Windscreen washer pump
Electrical system
Colour coding
= Input signal
= Output signal
= Positive power supply
= Earth
= CAN-BUS
Functional diagram
Control unit for vehicle
electrical system J519

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84
Heater/AC
Functional diagram
for fully automatic air
conditioner
Components
C20 Solar cells
E87 Operating and display unit for
air conditioner
G59 Driver’s seat temperature sensor
G60 Front passenger’s seat temperature
sensor
G65 High-pressure sender
G89 Temperature sensor - fresh air intake-
channel
G107 Sunlight penetration photosensor
G112 Potentiometer in positioning motor
for central flap
G113 Potentiometer in positioning motor
for air flow flap
G135 Potentiometer in central flap control
motor defrost flap
G143 Potentiometer in central flap control
motor recirculated-air flap
G150 Vent temperature sender, left
G151 Vent temperature sender, right
G220 Potentiometer, positioning motor for
temperature flap, left
G221 Potentiometer, positioning motor for
temperature flap, right
G238 Air quality sensor
G262 Vent temperature sender, footwell,
left
G262 Vent temperature sender, footwell,
right
G263 Vent temperature sender, evaporator
J9 Relay for heated windscreen and
rear window
J126 Blower control unit
N280 Regulating valve for compressor,
air conditioner
S Fuses
V2 Fresh air blower
V70 Central flap control motor
V71 Air flow flap control motor
V107 Defrost flap control motor
V113 Air recirculation flap control motor
V158 Temperature flap positioning motor,
left
V159 Temperature flap positioning motor,
right
1
2
3
4CAN-high convenience
CAN-low convenience
Terminal 75
Windscreen heating Z2
K-diagnostic connection
CAN-H CONVENIENCE
CAN-L CONVENIENCEConnection to
convenience data
bus
Colour coding
= Input signal
= Output signal
= Positive power supply
= Earth
= CAN-BUS

Auxiliary signals
Z1 Heated rear window
Z6 Heated driver’s seat
Z8 Heated front passenger’s seat
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