AUTOMOTIVE ELECTRICIANS PORTAL

AUDI A3 2004 – Radiator fan control – 60 W, 220 W (without air conditioning system), 1.9 litre diesel engine (77 kW – unit injector – 4-cylinder), engine code BKC . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A3 2004 - Radiator fan



Wiring Diagram  AUDI A3 2004 - Radiator fan https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Download PDF file
F18Radiator fan thermo-switch
SB54Fuse -54- on fuse box
T4d4-pin connector, black, at radiator fan (front end)
T4040-pin connector, brown, at electronics box, engine compartment (connector J)
V7Radiator fan
*Only applies to countries with hot climate or cold climate, models with manual gearbox and trailer operation or automatic gearbox, engine codes BAG, BGU
**Only applies to countries with cold climate, models with manual gearbox, engine code BKC
***Does not apply to countries with hot climate or cold climate, models with manual gearbox and trailer operation or automatic gearbox, engine code BKC
****Only applies to countries with cold climate, models with manual gearbox, engine codes BAG, BGU

Wiring Diagram AUDI A3 2004 - Coolant temperature sender - radiator outlet



Wiring Diagram  AUDI A3 2004 - Coolant temperature sender - radiator outlet https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
G83Coolant temperature sender - radiator outlet
J220Motronic control unit
J248Diesel direct injection system control unit
J361Simos control unit
T1212-pin connector, green, in plenum chamber
T14a14-pin connector, black, near relay carrier, electronics box
T6060-pin connector, black (connector A)
T94a94-pin connector, black (connector B)
T121121-pin connector, black, on engine control unit
   D101 Connection -1-, in engine compartment wiring harness
*Only applies to models with engine code BKC
**Only applies to models with engine code BAG
***Only applies to models with engine code BGU
****Only applies to models with coolant temperature sender - radiator outlet

Wiring Diagram AUDI A3 2004 - Matching resistor



Wiring Diagram  AUDI A3 2004 - Matching resistor https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
J220Motronic control unit
J248Diesel direct injection system control unit
J361Simos control unit
J363Current supply relay for Simos control unit
J271Motronic current supply relay
J317Terminal 30 voltage supply relay
SB8Fuse -8- on fuse box
T4d4-pin connector, black, at radiator fan (front end)
T12a12-pin connector, blue, in plenum chamber
T4040-pin connector, brown, at electronics box, engine compartment (connector J)
T9494-pin connector, black (connector B)
T94a94-pin connector, black (connector B)
T121121-pin connector, black, on engine control unit
   B320 Positive (+) connection -6- (30a), in main wiring harness
*Only applies to models with engine code BKC
**Only applies to models with engine code BAG
***Only applies to models with engine code BGU


AUDI A3 2004 Overview of fuses

Overview of fuses
AUDI A3 2004 Overview of fuses https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
q   Position of fuses on main fuse holder, electronics box low, from model year 2006
q   Position of fuses on main fuse holder, electronics box low, from model year 2007 chapter
q   Location on main fuse holder, electronics box low, from November 2008
q   Position of fuses on main fuse holder, electronics box low, from November 2008
q   Location main fuse holder, electronics box high
q   Position of fuses on main fuse holder, electronics box high, from model year 2004
q   Position of fuses on main fuse holder, electronics box high, from model year 2005
q   Position of fuses on main fuse holder, electronics box high, from model year 2006
q   Position of fuses electronics box low, from model year 2006
q   Position of fuses electronics box low, from model year 2007
q   Location electronics box high
q   Position of fuses electronics box high, from model year 2004
q   Position of fuses electronics box high, from model year 2006
q   Position of fuses electronics box high, from model year 2007
q   Position of fuses, from model year 2004
q   Position of fuses, from model year 2006
q   Position of fuses, from model year 2007
q   Position of fuses on main fuse box, from model year 2004
q   Position of fuses on main fuse box, from model year 2006
5 - 

   
Main fuse holder: Positionfuse holder A -SA- on electronics box low, from model year 2006
Main supply connection:
AUDI A3 2004 Overview of fuses https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
M -  Screw connection M (terminal 30)

   


AUDI A3 2004 Position of fuses electronics box low, from model year 2006

Position of fuses electronics box low, from model year 2006
Designation in Wiring Diagram Nominal value   Function/component Terminal
Fuse 1 in fuse holder A -SA1- 150 A - Alternator -C-(70 A)
Alternator -C-(90 A)
Alternator -C-(110 A)
Alternator -C- (120 A)
30
  200 A - Alternator -C- (140 A) 30
Fuse 2 on fuse holder on battery -SA2- 80 A - Power steering control unit -J500- 30
Fuse 3 on fuse holder on battery -SA3- 50 A - Radiator fan control unit -J293-
Radiator fan thermal switch -F18-
radiator fan -V7-
30
Fuse 4 on fuse holder on battery -SA4- 80 A - Supply for the fuses:
-SC12-up to-SC17-,-SC19-,-SC22-up to-SC27-,-SC28-,-SC38-
is dropped from November 2005
30
Fuse 5 on fuse holder on battery -SA5- 80 A - Supply for the fuses:
-SC12-up to-SC17-,-SC19-,-SC22-up to-SC27-,-SC28-,-SC38-
applicable from November 2005
30
Fuse 5 on fuse holder on battery -SA5- 100 A - Auxiliary air heater control unit -J604-
is dropped from November 2005
30
Fuse 6 on fuse holder on battery -SA6- 100 A - Auxiliary air heater control unit -J604-
applicable from November 2005
30
Fuse 7 on fuse holder on battery -SA7- 50 A - option doctor 30
  80 A - option police 30

   


AUDI A3 2004 Position of fuses electronics box low, from model year 2007

Position of fuses electronics box low, from model year 2007
Designation in Wiring Diagram Nominal value   Function/component Terminal
Fuse 1 in fuse holder A -SA1- 150 A - Alternator -C-(70 A)
Alternator -C-(90 A)
Alternator -C-(110 A)
Alternator -C- (120 A)
30
  200 A - Alternator -C- (140 A) 30
Fuse 2 on fuse holder on battery -SA2- 80 A - Power steering control unit -J500- 30
Fuse 3 on fuse holder on battery -SA3- 50 A - Radiator fan control unit -J293-
Radiator fan thermal switch -F18-
radiator fan -V7-
30
Fuse 4 on fuse holder on battery -SA4- 40 A - Low heat output relay -J359-
applicable from November 2006
30
Fuse 5 on fuse holder on battery -SA5- 80 A - B272 Positive connection (30), in main wiring harness
Supply for the fuses:
-SC12-up to-SC17-,-SC22-up to-SC27-,-SC28-,-SC38-,-SC43-
30
Fuse 6 on fuse holder on battery -SA6- 100 A - Auxiliary air heater control unit -J604-
is dropped from November 2006
30
Fuse 6 on fuse holder on battery -SA6- 80 A - High heat output relay -J360-
applicable from November 2006
30
Fuse 7 on fuse holder on battery -SA7- 50 A - option doctor 30
  80 A - option police 30
  30 A - Electronically controlled damping control unit -J250-
applicable from May 2008
30

   


AUDI A3 2004 Main fuse holder: Position fuse holder A SA on electronics box low, from November 2008

Main fuse holder: Positionfuse holder A -SA- on electronics box low, from November 2008
Main supply connection:
AUDI A3 2004 Main fuse holder: Position fuse holder A SA  on electronics box low, from November 2008 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
M -  Screw connection M (terminal 30)

   


AUDI A3 2004 Position of fuses in electronics box low, from November 2008

Position of fuses in electronics box low, from November 2008
Designation in Wiring Diagram Nominal value   Function/component Terminal
Fuse 1 in fuse holder A -SA1- 150 A - Alternator -C-(70 A)
Alternator -C-(90 A)
Alternator -C-(110 A)
Alternator -C- (120 A)
30
  200 A - Alternator -C- (140 A) 30
Fuse 2 on fuse holder on battery -SA2- 80 A - Power steering control unit -J500- 30
Fuse 3 on fuse holder on battery -SA3- 50 A - Radiator fan control unit -J293-
Radiator fan thermal switch -F18-
radiator fan -V7-
30
Fuse 4 on fuse holder on battery -SA4- 80 A - High heat output relay -J360- 30
Fuse 5 on fuse holder on battery -SA5- 80 A - B272 Positive connection (30), in main wiring harness
Supply for the fuses:
-SC12-up to-SC17-,-SC22-up to-SC27-,-SC28-,-SC38-,-SC43-
30
Fuse 6 on fuse holder on battery -SA6- 40 A - Low heat output relay -J359- 30
Fuse 7 on fuse holder on battery -SA7- 50 A - Option doctor
is dropped from May 2009
30
  50 A - Option doctor or police
applicable from May 2009
30
  80 A - Option police
is dropped from May 2009
30
  30 A - Electronically controlled damping control unit -J250- 30

   


AUDI A3 2004 Main fuse holder: Position fuse holder A SA on electronics box high

Main fuse holder: Positionfuse holder A -SA- on electronics box high
Main supply connection:
AUDI A3 2004 Main fuse holder: Position fuse holder A SA  on electronics box high https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 -  Screw connection A (terminal 30)
2 -  Screw connection M (terminal 30)
3 -  Screw connection L (terminal 30)

   


AUDI A3 2004 Position of fuses electronics box high, from model year 2004

Position of fuses electronics box high, from model year 2004
No.   Designation in Wiring Diagram Nominal value   Function/component Terminal
4 - Fuse 1 in fuse holder A -SA1- 150 A - Alternator -C-(70 A)
Alternator -C-(90 A)
Alternator -C-(110 A)
Alternator -C- (120 A)
30
4 - Fuse 1 in fuse holder A -SA1- 200 A - Alternator -C- (140 A) 30
5 - Fuse 2 on fuse holder on battery -SA2- 80 A - Power steering control unit -J500- 30
6 - Fuse 3 on fuse holder on battery -SA3- 80 A - Radiator fan control unit -J293- 30
7 - Fuse 4 on fuse holder on battery -SA4- 80 A - Window regulator single fuse -S37-
Supply for the fuses:
-SC22-up to-SC27-
for models with battery in luggage compartment only
30
8 - Fuse 5 on fuse holder on battery -SA5- 100 A - Auxiliary air heater control unit -J604- 30
9 - Fuse 6 on fuse holder on battery -SA6- 50 A - Supply for the fuses:
-SC12-up to-SC17-,-SC44-,-SC45-
for models with battery in luggage compartment only
30
      80 A - Window regulator single fuse -S37-
Supply for the fuses:
-SC12-up to-SC17-,-SC22-up to-SC27-
for models with battery in engine compartment only
30

   


AUDI A3 2004 Position of fuses electronics box high, from model year 2005

Position of fuses electronics box high, from model year 2005
No.   Designation in Wiring Diagram Nominal value   Function/component Terminal
4 - Fuse 1 in fuse holder A -SA1- 150 A - Alternator -C-(70 A)
Alternator -C-(90 A)
Alternator -C-(110 A)
Alternator -C- (120 A)
30
4 - Fuse 1 in fuse holder A -SA1- 200 A - Alternator -C- (140 A) 30
5 - Fuse 2 on fuse holder on battery -SA2- 80 A - Power steering control unit -J500- 30
6 - Fuse 3 on fuse holder on battery -SA3- 80 A - Radiator fan control unit -J293- 30
7 - Fuse 4 on fuse holder on battery -SA4- 80 A - Window regulator single fuse -S37-
Window regulator single fuse 2 -S280-
Supply for the fuses:
-SC22-up to-SC27-
for models with battery in luggage compartment only
30
8 - Fuse 5 on fuse holder on battery -SA5- 100 A - Auxiliary air heater control unit -J604- 30
9 - Fuse 6 on fuse holder on battery -SA6- 50 A - Supply for the fuses:
-SC12-up to-SC17-,-SC19-,-SC44-,-SC45-
for models with battery in luggage compartment only
30
      80 A - Window regulator single fuse -S37-
Window regulator single fuse 2 -S280-
Supply for the fuses:
-SC12-up to-SC17-,-SC19-,-SC22-up to-SC27-
for models with battery in engine compartment only
30

   


AUDI A3 2004 Position of fuses electronics box high, engine codes AXX, BWA, BPY, BHZ, BZC, CDLA, CDLC, from model year 2006

Position of fuses electronics box high, engine codes AXX, BWA, BPY, BHZ, BZC, CDLA, CDLC, from model year 2006
No.   Designation in Wiring Diagram Nominal value   Function/component Terminal
4 - Fuse 1 in fuse holder A -SA1- 150 A - Alternator -C-(70 A)
Alternator -C-(90 A)
Alternator -C-(110 A)
Alternator -C- (120 A)
30
      200 A - Alternator -C- (140 A)  
5 - Fuse 2 on fuse holder on battery -SA2- 80 A - Power steering control unit -J500- 30
6 - Fuse 3 on fuse holder on battery -SA3- 50 A - Radiator fan control unit -J293- 30
7 - Fuse 4 on fuse holder on battery -SA4- 80 A - Supply for the fuses:
-SC12-up to-SC17-,-SC19-,-SC22-up to-SC27-,-SC28-,-SC38-
is dropped from November 2005
30
7 - Fuse 4 on fuse holder on battery -SA4- 80 A - Supply for the fuses:
-SC12-up to-SC17-,-SC22-up to-SC27-,-SC28-,-SC38-,-SC43-
applicable from May 2009
30
8 - Fuse 5 on fuse holder on battery -SA5- 80 A - Supply for the fuses:
-SC12-up to-SC17-,-SC19-,-SC22-up to-SC27-,-SC28-,-SC38-
applicable from November 2005
is dropped from May 2006
30
8 - Fuse 5 on fuse holder on battery -SA5- 80 A - Supply for the fuses:
-SC12-up to-SC17-,-SC22-up to-SC27-,-SC28-,-SC38-,-SC43-
applicable from May 2006
is dropped from May 2009
30
9 - Fuse 6 on fuse holder on battery -SA6- - - Not assigned -
10 - Fuse 7 on fuse holder on battery -SA7- 50 A - Option doctor
is dropped from May 2009
30
      50 A   Option doctor or police
applicable from May 2009
 
      80 A   Option police
is dropped from May 2009
 
      30 A   Electronically controlled damping control unit -J250-
applicable from May 2008
 

   


AUDI A3 2004 Position of fuses electronics box high, engine codes BMJ, BUB, CBRA, from model year 2006

LocationFuse holder B -SB- on electronics box low, in left engine compartment
Fuse colours
AUDI A3 2004 Position of fuses electronics box high, engine codes BMJ, BUB, CBRA, from model year 2006 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
50 A - red
40 A - orange
30 A - light-green
25 A - natural (white)
20 A - yellow
15 A - light blue
10 A - red
7.5 A - brown
5 A - light-brown
3 A - purple

   


AUDI A3 2004 Position of fuses electronics box low, from model year 2006

Position of fuses electronics box low, from model year 2006
No.   Designation in Wiring Diagram Nominal value   Function/component Terminal
F1 - Fuse 1 on fuse holder B -SB1- 20 A - Convenience system central control unit -J393- 30
F2 - Fuse 2 on fuse holder B -SB2- 5 A - Steering column electronics control unit -J527- 30
F3 - Fuse 3 on fuse holder B -SB3- 5 A - Onboard supply control unit -J519- 30
F4 - Fuse 4 on fuse holder B -SB4- 30 A - ABS control unit -J104-
ABS hydraulic unit -N55-
30
F5 - Fuse 5 on fuse holder B -SB5- 15 A - Mechatronic unit for dual clutch gearbox -J743- 30
F6 - Fuse 6 on fuse holder B -SB6- 5 A - Control unit in dash panel insert -J285- 30
F7 - Not assigned - -    
F8 - Fuse 8 on fuse holder B -SB8- 15 A - Radio -R-
Navigation operating electronics control unit -J402-
30
F9 - Fuse 9 on fuse holder B -SB9- 5 A - Navigation system with CD drive control unit -J401-
Navigation system tuner for TV -J415-
Satellite radio -R146-
Telephone transmitter and receiver unit -R36-
Aerial amplifier for mobile telephone -R86-
30
F10 - Fuse 10 on fuse holder B -SB10- 5 A - Motronic control unit -J220-
Motronic current supply relay -J271-
Terminal 30 voltage supply relay -J317-
30
F11 - Fuse 11 on fuse holder B -SB11- 20 A - Auxiliary heater control unit -J364- 30
F12 - Fuse 12 on fuse holder B -SB12- 5 A - Data bus diagnostic interface -J533- 30
F13 - Fuse 13 on fuse holder B -SB13- 30 A - Engine control unit -J623-
Diesel direct injection system control unit -J248-
87
      25 A - Motronic control unit -J220-
Engine control unit -J623-
 
F14 - Fuse 14 on fuse holder B -SB14- 20 A - Ignition coil 1 with output stage -N-
Ignition coil 2 -N128-
Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292-
87
F15 - Fuse 15 on fuse holder B -SB15- 15 A - Lambda probe 1 heater after catalytic converter -Z29-
Lambda probe 2 heater after catalytic converter -Z30-
Lambda probe 3 heater after catalytic converter -Z64-
87
F15 - Fuse 15 on fuse holder B -SB15- 10 A - Lambda probe 1 heater after catalytic converter -Z29- 87
F15 - Fuse 15 on fuse holder B -SB15- 5 A - Automatic glow period control unit -J179-
Fuel pump relay -J17-
87
F16 - Fuse 16 on fuse holder B -SB16- 30 A - ABS control unit -J104-
ABS hydraulic pump -V64-
30
F17 - Fuse 17 on fuse holder B -SB17- 15 A - Treble tone horn -H2-
Bass tone horn -H7-
30
F18 - Fuse 18 on fuse holder B -SB18- 30 A - Amplifier -R12-
Amplifier with bass loudspeaker, on left in luggage compartment -R44-
30
F19 - Fuse 19 on fuse holder B -SB19- 30 A - Wiper motor control unit -J400- 30
F21 - Fuse 21 on fuse holder B -SB21- 15 A - Lambda probe heater -Z19-
Lambda probe heater 2 -Z28-
Lambda probe 1 heater after catalytic converter -Z29-
87
      10 A - Lambda probe heater -Z19-  
F22 - Fuse 22 on fuse holder B -SB22- 5 A - Brake pedal switch -F63-
Clutch position sender -G476-
87
F23 - Fuse 23 on fuse holder B -SB23- 15 A - Fuel pressure regulating valve -N276- 87
      10 A - Exhaust gas recirculation valve -N18-
Charge pressure control solenoid valve -N75-
Exhaust gas recirculation valve 2 -N213-
Exhaust gas recirculation cooler change-over valve -N345-
 
      5 A - Secondary air pump relay -J299-  
F24 - Fuse 24 on fuse holder B -SB24- 10 A - Map-controlled engine cooling system thermostat -F265-
Activated charcoal filter solenoid valve 1 -N80-
Variable intake manifold change-over valve -N156-
Camshaft control valve 1 -N205-
Intake manifold flap motor -V157-
87
F25 - Fuse 25 on fuse holder B -SB25- 40 A - Onboard supply control unit -J519-
(right side light, right main beam, right dipped beam, right turn signal, right fog light)
30
F26 - Fuse 26 on fuse holder B -SB26- 40 A - Onboard supply control unit -J519-
(left side light, left main beam, left dipped beam, left turn signal, left fog light)
30
F27 - Fuse 27 on fuse holder B -SB27- 50 A - Automatic glow period control unit -J179-
Glow plug 1 -Q10-
Glow plug 2 -Q11-
Glow plug 3 -Q12-
Glow plug 4 -Q13-
87
      40 A Secondary air pump motor -V101-  
F28 - Fuse 28 on fuse holder B -SB28- 40 A - Terminal 15 voltage supply relay 2 -J681-
Supply for the fuses:
-SC1-up to-SC6-,-SC7-up to-SC11-,-SC29-up to-SC31-,-SC39-,-SC47-,-SC49-
30
F29 - Fuse 29 on fuse holder B -SB29- 50 A - Supply for the fuses:
-SC18-,-SC20-,-SC32-up to-SC37-,-SC44-,-SC45-,-SC48-,-S131-
30
F30 - Fuse 30 on fuse holder B -SB30- 50 A 1 - X-contact relief relay -J59-
Supply for the fuses:
-SC40-,-SC41-,-SC42-,-SC46-
30

  Note
1 Fuse was increased from 40 A to 50 A, applicable from November 2005
   


AUDI A3 2004 Position of fuses electronics box low, from model year 2007

Position of fuses electronics box low, from model year 2007
No.   Designation in Wiring Diagram Nominal value   Function/component Terminal
F1 - Fuse 1 on fuse holder B -SB1- 40 A - Voltage stabiliser -J532-
Supply for the fuses:
-SC7-up to-SC11-
for models with stop/start system only
applicable from model year 2010
30
F1 - Fuse 1 on fuse holder B -SB1- 40 A - Supply for the fuses:
-SC7-up to-SC10-
for models without stop/start system only
applicable from model year 2010
30
F2 - Fuse 2 on fuse holder B -SB2- 5 A - Steering column electronics control unit -J527-
is dropped, from model year 2009
30
F2 - Fuse 2 on fuse holder B -SB2- 30 A - Mechatronic unit for dual clutch gearbox -J743-
(7-speed dual clutch gearbox 0AM)
applicable from model year 2009
30
F2 - Fuse 2 on fuse holder B -SB2- 20 A - Fuel pressure regulating valve -N276-(CBFA)
applicable from model year 2009
30
F3 - Fuse 3 on fuse holder B -SB3- 5 A - Onboard supply control unit -J519- 30
F3 - Fuse 3 on fuse holder B -SB3- 5 A - Battery monitor control unit -J367-
applicable from model year 2010
30
F4 - Fuse 4 on fuse holder B -SB4- 30 A - ABS control unit -J104-(MK60 ESP valves)
ABS control unit -J104-(MK70 ABS valves)
is dropped from model year 2009
30
F4 - Fuse 4 on fuse holder B -SB4- 20 A - ABS control unit -J104-(MK60 ESP valves)
applicable from model year 2009
30
F5 - Fuse 5 on fuse holder B -SB5- 15 A - Mechatronic unit for dual clutch gearbox -J743- 30
F6 - Fuse 6 on fuse holder B -SB6- 5 A - Control unit in dash panel insert -J285-
is dropped, from model year 2010
30
F6 - Fuse 6 on fuse holder B -SB6- 5 A - Steering column electronics control unit -J527-
applicable from model year 2009
30
F7 - Fuse 7 on fuse holder B -SB7- 20 A - Fuel pressure regulating valve -N276- (CBFA)
is dropped from model year 2009
30
F8 - Fuse 8 on fuse holder B -SB8- 15 A - Navigation operating electronics control unit -J402-
Control unit with display for radio and navigation system -J503-
Radio -R-
is dropped, from model year 2010
30
F8 - Fuse 8 on fuse holder B -SB8- 25 A - Control unit with display for radio and navigation system -J503-1
for models with radio navigation system (models for Japan) only
is dropped from model year 2010
30
F9 - Fuse 9 on fuse holder B -SB9- 5 A - Navigation system with CD drive control unit -J401-1
Navigation system tuner for TV -J415-1
Satellite radio -R146-
Telephone transmitter and receiver unit -R36-
Aerial amplifier for mobile telephone -R86-1
18-pin connector -T18a-(VDA interface) 1
is dropped from model year 2010
30
F10 - Fuse 10 on fuse holder B -SB10- 5 A - Terminal 30 voltage supply relay -J317- (BKC, BXE, AZV, BKD, BLS, BMM, BUY, BMN, CBBB, CBAB, CBAA, CAYB, CAYC, CBEA, CFFA, CFFB, CFGB) 30
F10   Fuse 10 on fuse holder B -SB10- 5 A - Engine control units -J...-(CAXC, CBBB, CBAB, CBAA, CAYB, CAYC, CBEA, CBZB, CFFA, CFFB, CFGB)
Motronic current supply relay -J271- (CAXC, CBZB)
30
F10 - Fuse 10 on fuse holder B -SB10- 10 A - Engine control units -J...-(BLF, BPT, BPU, BVZ, BVY, BZB, CAWB, CBFA, CCTA, CDAA, CCZA)
Motronic current supply relay -J271- (BLF, BPT, BPU, BVZ, BVY, BZB, CAWB, CBFA, CCTA, CDAA, CCZA)
30
F11 - Fuse 11 on fuse holder B -SB11- 20 A - Auxiliary heater control unit -J364-1 30
F12 - Fuse 12 on fuse holder B -SB12- 5 A - Data bus diagnostic interface -J533- 30
F13 - Fuse 13 on fuse holder B -SB13- 30 A - Engine control units -J...- (BKC, BXE, AZV, BKD, BLS, BMM, BUY, BMN, CBBB, CBAB, CBAA, CAYB, CAYC, CBEA, CFFA, CFFB, CFGB) 87
      25 A   Engine control units -J...- (BLF, BPT, BPU, BYT, BVZ, BVY, BSE, BSF)
is dropped from May 2007, for models with engine codes BSE, BSF only
 
      15 A Engine control units -J...-(CAXC, BZB, CAWB, CBFA, CCTA, CDAA, CCZA, CBZB)
applicable from May 2007, for models with engine codes BSE, BSF, CCSA only
 
F14   Fuse 14 on fuse holder B -SB14- 20 A - Ignition coil 1 with output stage -N-(BSE, BSF, CCSA, CBZB)
Ignition coil 2 -N128- (BSE, BSF, CCSA, CBZB)
87
F14 - Fuse 14 on fuse holder B -SB14- 20 A - Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292-
for models with engine codes BLF, BPT, BPU, BYT, BVZ, BVY, CAXC, BZB, CAWB, CBFA, CCTA, CDAA, CCZA only
87
F14 - Fuse 14 on fuse holder B -SB14- 20 A - Fuel pressure regulating valve -N276-(CBBB, CBAB, CBAA, CAYB, CAYC, CBEA, CFFA, CFFB, CFGB)
Fuel metering valve -N290- (CBBB, CBAB, CBAA, CAYB, CAYC, CBEA, CFFA, CFFB, CFGB)
87
F15 - Fuse 15 on fuse holder B -SB15- 15 A - Lambda probe 1 heater after catalytic converter -Z29-(BVY)
Lambda probe 2 heater after catalytic converter -Z30-(BVY)
Lambda probe 3 heater after catalytic converter -Z64- (BVY)
87
F15 - Fuse 15 on fuse holder B -SB15- 10 A - Lambda probe 1 heater after catalytic converter -Z29- (BVZ) 87
F15 - Fuse 15 on fuse holder B -SB15- 10A - Lambda probe 1 heater after catalytic converter -Z29- (CAXC, CBZB)
Lambda probe heater -Z19- (CAXC, CBZB)
87
F15 - Fuse 15 on fuse holder B -SB15- 10 A - Camshaft control valve 1 -N205- (BPT, BPU, BYT) 87
F15   Fuse 15 on fuse holder B -SB15- 10 A - Radiator identification sensor -G611-(CBFA)
Fuel system diagnostic pump -V144-(CBFA, CCTA)
Lambda probe heater -Z19- (CBFA)
87
F15 - Fuse 15 on fuse holder B -SB15- 5 A - Fuel pump relay -J17-
Automatic glow period control unit -J179-
for models with engine codes BKC, BXE, AZV, BKD, BLS, BMM, BUY, BMN, CBBB, CBAB, CBAA, CAYB, CAYC, CBEA, CFFA, CFFB, CFGB only
87
F15 - Fuse 15 on fuse holder B -SB15- 5 A - Low heat output relay -J359-
High heat output relay -J360-
for models with engine codes BKC, BXE, AZV, BKD, BLS, BMM, BUY, BMN, CBBB, CBAB, CBAA, CAYB, CAYC, CBEA, CFFA, CFFB, CFGB only
applicable from November 2006, for models with auxiliary air heater only
87
F15 - Fuse 15 on fuse holder B -SB15- 5 A - Relay for supplementary fuel pump -J832- (CBBB, CBAB, CBAA, CBEA, CFFA, CFFB, CFGB) 87
F16 - Fuse 16 on fuse holder B -SB16- 30 A - ABS control unit -J104-(ABS pump)
is dropped from model year 2009
30
F16 - Fuse 16 on fuse holder B -SB16- 30 A - Onboard supply control unit -J519-
Right side light supply, right main beam, right dipped beam, right turn signal, right fog light
applicable from model year 2009
30
F17 - Fuse 17 on fuse holder B -SB17- 15 A - Treble tone horn -H2-
Bass tone horn -H7-
30
F18 - Fuse 18 on fuse holder B -SB18- 30 A - Amplifier -R12-
Amplifier with bass loudspeaker, on left in luggage compartment -R44-
30
F18 - Fuse 18 on fuse holder B -SB18- 30 A - Voltage stabiliser -J532-
Amplifier -R12-
Amplifier with bass loudspeaker, on left in luggage compartment -R44-
for models with stop/start system only
applicable from model year 2010
30
F19 - Fuse 19 on fuse holder B -SB19- 30 A - Wiper motor control unit -J400- 30
F20 - Fuse 20 on fuse holder B -SB20- 20 A - Fuel pressure regulating valve -N276- (BYT, BPT, BPU, BZB, CAWB, CCTA, CDAA, CCZA) 87
F20 - Fuse 20 on fuse holder B -SB20- 10 A - Coolant circulation pump -V50- (CAXC) 87
F21 - Fuse 21 on fuse holder B -SB21- 10 A - Lambda probe 3 heater after catalytic converter -Z64- (CBFA) 87
F21 - Fuse 21 on fuse holder B -SB21- 10 A - Lambda probe heater -Z19-(BSE, BSF, BLF, BPT, BPU, BYT, BVZ, BVY, BLS, BMM, BUY, BMN, BZB, CAWB, CCTA, CCSA, CDAA, CCZA, CBBB, CBAB, CBAA, CAYB, CAYC, CBEA, CFFA, CFFB, CFGB)
Lambda probe 1 heater after catalytic converter -Z29-(BSE, BSF, BLF, CCTA, CBFA, CCSA, CDAA, CCZA, CBEA)
is dropped from May 2009, for models with engine codes BSE, CCSA, CCTA, CCZA, CDAA only
87
F21 - Fuse 21 on fuse holder B -SB21- 15 A - Lambda probe heater -Z19-(BSE, CCSA, CCTA, CCZA, CDAA)
Lambda probe 1 heater after catalytic converter -Z29- (BSE, CCSA, CCTA, CCZA, CDAA)
applicable from model year 2010
87
F21 - Fuse 21 on fuse holder B -SB21- 20 A - Vacuum pump relay -J57-(CAXC)
Vacuum pump for brakes -V192- (CAXC)
87
F22   Fuse 22 on fuse holder B -SB22- 5 A   Clutch position sender -G476- 87
F22   Fuse 22 on fuse holder B -SB22- 5 A   Brake light switch -F-
Brake pedal switch -F63-
applicable from model year 2010
87
F23 - Fuse 23 on fuse holder B -SB23- 5 A - Continued coolant circulation relay -J151-(BPT, BPU, BYT, BZB, CAWB, CCTA, CBFA, CCZA, CDAA)
Secondary air pump relay -J299-(BSE, CBFA, CCSA)
Engine component current supply relay -J757-(CBFA)
Continued coolant circulation pump -V51- (BPT, BPU, BYT, BZB, CAWB, CCTA, CBFA, CCZA, CDAA)
87
      10 A   Exhaust gas recirculation valve -N18-(BKC, BXE, AZV, BKD)
Charge pressure control solenoid valve -N75-(BLS, BMM, BKC, BXE, AZV, BKD, BMN, BUY, CBBB, CBAB, CBAA, CAYB, CAYC, CBEA, CFFA, CFFB, CFGB)
Exhaust gas recirculation valve 2 -N213-(BKC, BXE, AZV, BKD)
Intake manifold flap valve -N316-(BMN, BUY)
Exhaust gas recirculation cooler change-over valve -N345-(BLS, BMM)
Exhaust gas recirculation cooler change-over valve -N345- (BMN, BUY, CBBB, CBAB, CBAA, CAYB, CAYC, CFFA, CFFB, CFGB)
 
      10 A   Air mass meter -G70- (CFFA, CFFB, CFGB)  
      15 A Fuel pressure regulating valve -N276- (BLF, CAXC, BVY, BVZ, CBZB)  
F24 - Fuse 24 on fuse holder B -SB24- 10 A - Radiator fan control unit -J293-
Engine component current supply relay -J757-(BPT, BPU, BYT, CAXC, CDAA, CAWB, CCZA, CCTA)
Regulating flap control unit -J808-(CBEA)
Charge pressure control solenoid valve -N75-(BPT, BPU, BYT, CAXC, CAWB, BZB, CCTA, CBFA, CDAA, CCZA)
Activated charcoal filter solenoid valve 1 -N80-(BPT, BPU, BYT, BSE, BSF, BLF, BVY, BVZ, CAXC, CAWB, BZB, CCTA, CBFA, CCSA, CDAA, CCZA, CBZB)
Secondary air inlet valve -N112-(CBFA)
Variable intake manifold change-over valve -N156-(BSE, BSF, BLF, BVY, BVZ, CCSA)
Camshaft control valve 1 -N205-(BLF, BVY, BVZ, CAXC, CAWB, BZB, CCTA, CBFA, CDAA, CCZA)
Turbocharger air recirculation valve -N249-(BPT, BPU, BYT, CAXC, CAWB, BZB, CCTA, CBFA, CDAA, CCZA)
Intake manifold flap valve -N316-(BPT, BPU, BYT, CAWB, BZB, CCTA, CBFA, CDAA, CCZA, CBZB)
Valve for oil pressure control -N428-
Intake manifold flap motor -V157-(BKC, BXE, AZV, BKD)
Pump for exhaust gas recirculation cooler -V400-(CBBB, CBAB, CBAA, CAYB, CAYC, CFFA, CFFB, CFGB)
Electrohydraulic engine mounting solenoid valve -N398- (CAYB, CAYC)
87
F25 - Fuse 25 on fuse holder B -SB25- 30 A - Onboard supply control unit -J519-
Right side light supply, right main beam, right dipped beam, right turn signal, right fog light
is dropped from model year 2009
30
F25 - Fuse 25 on fuse holder B -SB25- 40 A - ABS control unit -J104-(MK60 ESP pump)
ABS control unit -J104-(MK70 ABS pump and ABS valves)
applicable from model year 2009
30
F26 - Fuse 26 on fuse holder B -SB26- 30 A - Onboard supply control unit -J519-
Left side light supply, left main beam, left dipped beam, left turn signal, left fog light
30
F27 - Fuse 27 on fuse holder B -SB27- 50 A - Automatic glow period control unit -J179-
Glow plug 1 -Q10-
Glow plug 2 -Q11-
Glow plug 3 -Q12-
Glow plug 4 -Q13-
for models with engine codes BKC, BXE, AZV, BKD, BLS, BMM, BMN, BUY, CBBB, CBAB, CBAA, CAYB, CAYC, CBEA, CFFA, CFFB, CFGB only
87
F27 - Fuse 27 on fuse holder B -SB27- 40 A - Secondary air pump motor -V101- (BSE, CBFA, CCSA)  
F28 - Fuse 28 on fuse holder B -SB28- 40 A - Terminal 15 voltage supply relay 2 -J681-
Supply for the fuses:
-SC1-up to-SC6-,-SC29-up to-SC31-,-SC46-,-SC47-,-SC49-
is dropped, from model year 2009
30
F29 - Fuse 29 on fuse holder B -SB29- 50 A - B300Positive connection 4 (30) in main wiring harness
Supply for the fuses:
-SC32-up to-SC37-,-SC44-,-SC45-,-SC48-,-S131-
is dropped, from model year 2009
30
F29 - Fuse 29 on fuse holder B -SB29- 50 A - B300Positive connection 4 (30) in main wiring harness
Supply for the fuses:
-SC32-up to-SC37-,-SC39-,-SC44-,-SC45-,-SC48-,-S131-
applicable from model year 2009
30
F30 - Fuse 30 on fuse holder B -SB30- 50 A - X-contact relief relay -J59-
Supply for the fuses:
-SC40-,-SC41-,-SC42-
is dropped, from model year 2009
30
F30 - Fuse 30 on fuse holder B -SB30- 50 A - Terminal 15 voltage supply relay 2 -J681-
Supply for the fuses:
-SC1-up to-SC6-,-SC19-,-SC20-,-SC29-up to-SC31-,-SC40-,-SC41-,-SC42-,-SC46-,-SC47-,-SC49-
applicable from model year 2009
30

1 not for models with US equipment
   


AUDI A3 2004 Location Fuse holder B SB on electronics box high, in left engine compartment

LocationFuse holder B -SB- on electronics box high, in left engine compartment
Fuse colours
AUDI A3 2004 Location Fuse holder B SB  on electronics box high, in left engine compartment https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
50 A - red
40 A - orange
30 A - light-green
25 A - natural (white)
20 A - yellow
15 A - light blue
10 A - red
7.5 A - brown
5 A - light-brown
3 A - purple

   


AUDI A3 2004 Position of fuses electronics box high, from model year 2004

Position of fuses electronics box high, from model year 2004
No.   Designation in Wiring Diagram Nominal value   Function/component Terminal
F1 - Fuse 1 on fuse holder B -SB1- 30 A - ABS hydraulic pump -V64- 30
F2 - Fuse 2 on fuse holder B -SB2- 30 A - ABS hydraulic unit -N55- 30
F3 - Fuse 3 on fuse holder B -SB3- 20 A - Convenience system central control unit -J393- 30
F4 - Fuse 4 on fuse holder B -SB4- 5 A - Onboard supply control unit -J519-
for models with battery in engine compartment only
30
F5 - Fuse 5 on fuse holder B -SB5- 20 A - Treble tone horn -H2-
Bass tone horn -H7-
30
F6 - Fuse 6 on fuse holder B -SB6- 7.5 A - Fuel pressure regulating valve -N276-1
is dropped from model year 2005
87 (30a)
      15 A - Fuel pressure regulating valve -N276-1
applicable from model year 2005
 
      20 A - Output stage -N122-1  
      30 A - Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292-
Ignition coil 5 with output stage -N323-1
Ignition coil 6 with output stage -N324-1
 
F7 - Fuse 7 on fuse holder B -SB7- 5 A - Brake light switch -F-
Brake pedal switch -F63-
Clutch travel sender -G162-
87 (30a)
F8 - Fuse 8 on fuse holder B -SB8- 10 A - Map-controlled engine cooling system thermostat -F265-1
Radiator fan control unit -J293-
Exhaust gas recirculation valve -N18-1
Activated charcoal filter solenoid valve 1 -N80-1
Variable intake manifold change-over valve -N156-1
Camshaft control valve 1 -N205-
Exhaust camshaft control valve 1 -N318-1
Intake manifold flap motor -V157-1
87 (30a)
F9 - Fuse 9 on fuse holder B -SB9- 10 A - Fuel pump relay -J17-1
Continued coolant circulation relay -J151-
Automatic glow period control unit -J179-1
NOx sensor control unit -J583-1
Continued coolant circulation pump -V51-
NOx sender heater -Z44-1
87 (30a)
F10 - Fuse 10 on fuse holder B -SB10- 10 A - Secondary air pump relay -J299-1
Exhaust gas recirculation valve -N18-1
Charge pressure control solenoid valve -N75-1
Secondary air inlet valve -N112-1
Exhaust gas recirculation valve 2 -N213-1
Exhaust flap valve -N220-1
Lambda probe 1 heater after catalytic converter -Z29-1
Lambda probe 2 heater after catalytic converter -Z30-1
Fuel system diagnostic pump -V144-
87 (30a)
F11 - Fuse 11 on fuse holder B -SB11- 25 A - Motronic control unit -J220-
Simos control unit -J361-1
87 (30a)
      30 A - Diesel direct injection system control unit -J248-1  
F12 - Fuse 12 on fuse holder B -SB12- 15 A - NOx sensor control unit -J583-1
Lambda probe heater -Z19-1
Lambda probe heater 2 -Z28-1
NOx sender heater -Z44-1
87 (30a)
F13 - Fuse 13 on fuse holder B -SB13- 20 A - Mechatronic unit for dual clutch gearbox -J743- 30
F14 - Not assigned - -   -
F15 - Fuse 15 on fuse holder B -SB15- 40 A - Starter -B- 87 (50)
F16 - Fuse 16 on fuse holder B -SB16- 15 A - Steering column electronics control unit -J527- 30
F17 - Fuse 17 on fuse holder B -SB17- 10 A - Control unit in dash panel insert -J285- 30
F18   Fuse 18 on fuse holder B -SB18- 30 A - Amplifier -R12-
Amplifier with bass loudspeaker, on left in luggage compartment -R44-
30
F19 - Fuse 19 on fuse holder B -SB19- 15 A - Radio -R-
Navigation operating electronics control unit -J402-
30
F20 - Fuse 20 on fuse holder B -SB20- 5 A - Telephone transmitter and receiver unit -R36-
Aerial amplifier for mobile telephone -R86-1
30
F21 - Fuse 21 on fuse holder B -SB21- 10 A - Navigation system with CD drive control unit -J401-
Navigation system tuner for TV -J415-1
30
F22 - Not assigned - -   -
F23 - Not assigned - -   -
F24 - Fuse 24 on fuse holder B -SB24- 10 A - Data bus diagnostic interface -J533- 30
F25 - Not assigned - -  
F26 - Fuse 26 on fuse holder B -SB26- 10 A - Motronic control unit -J220-
Motronic current supply relay -J271-
30
      5 A - Terminal 30 voltage supply relay -J317-1  
F27 - Fuse 21 on fuse holder B -SB21- 10 A - Heater element for crankcase breather -N79-1
for models with heater element only
87 (15)
      5 A - Heater element for crankcase breather -N79-1
for models with heater element only
87 (15)
F28   Fuse 28 on fuse holder B -SB28- 20 A - Automatic gearbox control unit -J217-1 87 (15)
F29 - Fuse 29 on fuse holder B -SB29- 10 A - Injector, cylinder 1 -N30-1
Injector, cylinder 2 -N31-1
Injector, cylinder 3 -N32-1
Injector, cylinder 4 -N33-1
Injector, cylinder 5 -N83-1
Injector, cylinder 6 -N84-1
87 (15)
      20 A Ignition coil 1 with output stage -N70-1
Ignition coil 2 with output stage -N127-1
Ignition coil 3 with output stage -N291-1
Ignition coil 4 with output stage -N292-1
 
F30 - Fuse 30 on fuse holder B -SB30- 20 A - Auxiliary heater control unit -J364-1 30
F31 - Fuse 31 on fuse holder B -SB31- 30 A - Wiper motor control unit -J400- 30
F32 - Fuse 32 on fuse holder B -SB32- 10 A - Injector, cylinder 1 -N30-1
Injector, cylinder 2 -N31-1
Injector, cylinder 3 -N32-1
Injector, cylinder 4 -N33-1
Charge pressure control solenoid valve -N75-
Activated charcoal filter solenoid valve 1 -N80-
Turbocharger air recirculation valve -N249-
87 (15a)
F33 - Fuse 33 on fuse holder B -SB33- 15 A - Fuel system pressurisation pump -G6-1 87 (15a)
F33 - Fuse 33 on fuse holder B -SB33- 7.5 A - Fuel pressure regulating valve -N276-
is dropped, from model year 2005
87 (15a)
F33 - Fuse 33 on fuse holder B -SB33- 15 A - Fuel pressure regulating valve -N276-
applicable from model year 2005
87 (15a)
F34 - Not assigned - -   -
F35 - Not assigned - -   -
F36 - Not assigned - -   -
F37 - Not assigned - -   -
F38 - Fuse 38 on fuse holder B -SB38- 10 A - Left headlight range control motor -V48-
Right headlight range control motor -V49-
87 (15)
F39 - Fuse 39 on fuse holder B -SB39- 5 A - Oil level and oil temperature sender -G266- 87 (15)
F40 - Fuse 40 on fuse holder B -SB40- 20 A - Supply for the fuses:
-SC1-up to-SC6-,-SC7-up to-SC11-,-SC29-up to-SC31-
for models with battery in engine compartment only
87 (15)
F41 - Fuse 41 on fuse holder B -SB41- 10 A - Air mass meter -G70- 87 (15)
F42 - Fuse 42 on fuse holder B -SB42- 5 A - Fuel pump relay -J17- 87 (15)
      10 A - Air mass meter -G70-1
F43 - Fuse 43 on fuse holder B -SB43- 20 A - Vacuum pump relay -J57-1
for petrol engines with automatic gearbox only
87 (15)
F44 - Fuse 44 on fuse holder B -SB44- 10 A - Air mass meter -G70-1
Fuel system diagnostic pump -V144-
87 (15a)
F45 - Fuse 45 on fuse holder B -SB45- 10 A - Lambda probe heater -Z19-
Lambda probe 1 heater after catalytic converter -Z29-1
87 (15a)
      15 A - Lambda probe heater -Z19-1
Lambda probe 1 heater after catalytic converter -Z29-1
 
F46 - Fuse 46 on fuse holder B -SB46- 10 A - Lambda probe heater 2 -Z28-1
Lambda probe 1 heater after catalytic converter -Z29-
Lambda probe 2 heater after catalytic converter -Z30-1
87 (15a)
F47 - Fuse 47 on fuse holder B -SB47- 40 A - Onboard supply control unit -J519-
Left side light supply, left main beam, left dipped beam, left turn signal, left fog light
30
F48 - Fuse 48 on fuse holder B -SB48- 40 A - Onboard supply control unit -J519-
Right side light supply, right main beam, right dipped beam, right turn signal, right fog light
30
F49 - Fuse 49 on fuse holder B -SB49- 30 A - Terminal 15 voltage supply relay 2 -J681-
Supply for the fuses:
-SC1-up to-SC6-,-SC7-up to-SC11-,-SC29-up to-SC31-
for models with battery in luggage compartment only
30
F50 - Not assigned - - - -
F51 - SB51 - Fuse 51 on fuse holder 40 A - Secondary air pump relay -J299-1
Secondary air pump motor -V101-1
30
      50 A - Automatic glow period control unit -J179-1
F52 - SB52 - Fuse 52 on fuse holder 50 A - X-contact relief relay -J59-
Supply for the fuses:
-SC40-,-SC41-,-SC42-,-SC46-
30
F53 - SB53 - Fuse 53 on fuse holder 50 A - Supply for the fuses:
-SC32-up to-SC37-,-SC44-,-SC45-
for models with battery in engine compartment only
30
      50 A - Supply for the fuses:
-SC32-up to-SC37-
for models with battery in luggage compartment only
30
F54 -   50 A - Radiator fan thermal switch -F18-1
Radiator fan control unit -J293-J293 - Radiator fan control unit
30

1 not for models with US equipment
   


AUDI A3 2004 Position of fuses electronics box high, from model year 2006

Position of fuses electronics box high, from model year 2006
No.   Designation in Wiring Diagram Nominal value   Function/component Terminal
F1 - Fuse 1 on fuse holder B -SB1- 30 A - ABS control unit -J104-
ABS hydraulic pump -V64-
30
F2 - Fuse 2 on fuse holder B -SB2- 30 A - ABS control unit -J104-
ABS hydraulic unit -N55-
30
F3 - Fuse 3 on fuse holder B -SB3- 20 A - Convenience system central control unit -J393- 30
F4 - Fuse 4 on fuse holder B -SB4- 5 A - Onboard supply control unit -J519- 30
F5 - Fuse 5 on fuse holder B -SB5- 15 A - Treble tone horn -H2-
Bass tone horn -H7-
30
F6 - Fuse 6 on fuse holder B -SB6- 15 A - Fuel pressure regulating valve -N276-
Fuel system pressurisation pump -G6-
87
F7 - Not assigned - -   -
F8 - Not assigned - -   -
F9 - Fuse 9 on fuse holder B -SB9- 10 A - Charge pressure control solenoid valve -N75-
Activated charcoal filter solenoid valve 1 -N80-
Turbocharger air recirculation valve -N249-
87
F10 - Fuse 10 on fuse holder B -SB10- 10 A - Air mass meter -G70-
Fuel system diagnostic pump -V144-
87
F11 - Fuse 11 on fuse holder B -SB11- 10 A - Lambda probe heater -Z19-
Lambda probe heater 2 -Z28-
87
F12 - Fuse 12 on fuse holder B -SB12- 10 A - Lambda probe 1 heater after catalytic converter -Z29-
Lambda probe 2 heater after catalytic converter -Z30-
87
F13 - Fuse 13 on fuse holder B -SB13- 15 A - Mechatronic unit for dual clutch gearbox -J743- 30
F14 - Not assigned - -   -
F15 - Fuse 15 on fuse holder B -SB15- 10 A - Continued coolant circulation pump -V51- 87
F16 - Fuse 16 on fuse holder B -SB16- 5 A - Steering column electronics control unit -J527- 30
F17 - Fuse 17 on fuse holder B -SB17- 5 A - Control unit in dash panel insert -J285- 30
F18 - Fuse 18 on fuse holder B -SB18- 30 A - Amplifier -R12-
Amplifier with bass loudspeaker, on left in luggage compartment -R44-
30
F19 - Fuse 19 on fuse holder B -SB19- 15 A - Radio -R-
Navigation operating electronics control unit -J402-
30
F20 - Fuse 20 on fuse holder B -SB20- 5 A - Navigation system with CD drive control unit -J401-1
Navigation system tuner for TV -J415-1
Telephone transmitter and receiver unit -R36-
Aerial amplifier for mobile telephone -R86-1
Satellite radio -R146-
30
F21 - Not assigned - -   -
F22 - Not assigned - -   -
F23 - Fuse 23 on fuse holder B -SB23- 5 A - Motronic control unit -J220-
Motronic current supply relay -J271-
30
F24 - Fuse 24 on fuse holder B -SB24- 5 A - Data bus diagnostic interface -J533- 30
F25 - Not assigned - -   -
F26 - Not assigned - -   -
F27 - Not assigned - -   -
F28 - Fuse 28 on fuse holder B -SB28- 25 A - Motronic control unit -J220- 87
F29 - Fuse 29 on fuse holder B -SB29- 5 A - Continued coolant circulation relay -J151-
Secondary air pump relay -J299-
87
F30 - Fuse 30 on fuse holder B -SB30- 20 A - Auxiliary heater control unit -J364- 30
F31 - Fuse 31 on fuse holder B -SB31- 30 A - Wiper motor control unit -J400- 30
F32 - Not assigned - -   -
F33 - Not assigned - -   -
F34 - Not assigned - -   -
F35 - Not assigned - -   -
F36 - Not assigned - -   -
F37 - Not assigned - -   -
F38 - Fuse 38 on fuse holder B -SB38- 10 A - Activated charcoal filter solenoid valve 1 -N80-1
Variable intake manifold change-over valve -N156-1
Camshaft control valve 1 -N205-
Exhaust camshaft control valve 1 -N318-1
Radiator fan control unit -J293-
87
F39 - Fuse 39 on fuse holder B -SB39- 5 A - Brake pedal switch -F63-
Clutch position sender -G476-
87
F40 - Fuse 40 on fuse holder B -SB40- 20 A - Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292-
87
F41 - Not assigned - -   -
F42 - Fuse 42 on fuse holder B -SB42- 5 A - Engine component current supply relay -J757- 87
F43 - Fuse 43 on fuse holder B -SB43- 30 A - Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292-
Ignition coil 5 with output stage -N323-
Ignition coil 6 with output stage -N324-
87
F44 - Not assigned - -   -
F45 - Not assigned - -   -
F46 - Not assigned - -   -
F47 - Fuse 47 on fuse holder B -SB47- 40 A - Onboard supply control unit -J519-
Left side light supply, left main beam, left dipped beam, left turn signal, left fog light
30
F48 - Fuse 48 on fuse holder B -SB48- 40 A - Onboard supply control unit -J519-
Right side light supply, right main beam, right dipped beam, right turn signal, right fog light
30
F49 - Fuse 49 on fuse holder B -SB49- 40 A - J681 - Terminal 15 voltage supply relay 2
Supply for the fuses:
-SC1-up to-SC6-,-SC7-up to-SC11-,-SC29-up to-SC31-,-SC47-,-SC49-
30
F50 - Not assigned - -   -
F51 - Fuse 51 on fuse holder B -SB51- 40 A - Secondary air pump relay -J299-
Secondary air pump motor -V101-
30
F52 - Fuse 52 on fuse holder B -SB52- 50 A 2 - X-contact relief relay -J59-
Supply for the fuses:
-SC40-,-SC41-,-SC42-,-SC46-
30
F53 - Fuse 53 on fuse holder B -SB53- 50 A - Supply for the fuses:
-SC18-,-SC20-,-SC32-up to-SC37-,-SC44-,-SC45-,-SC48-,-S131-
30

1 not for models with US equipment
2 Fuse was increased from 40 A to 50 A, applicable from November 2005
   


AUDI A3 2004 Position of fuses electronics box high, from model year 2007

Position of fuses electronics box high, from model year 2007
No.   Designation in Wiring Diagram Nominal value   Function/component Terminal
F1 - Fuse 1 on fuse holder B -SB1- 30 A - ABS control unit -J104-(ABS pump)
is dropped from model year 2009
30
F1 - Fuse 1 on fuse holder B -SB1- 30 A - Onboard supply control unit -J519-
Right side light supply, right main beam, right dipped beam, right turn signal, right fog light
applicable from model year 2009
30
F2 - Fuse 2 on fuse holder B -SB2- 30 A - ABS control unit -J104-(MK60 ESP valves)
ABS control unit -J104-(MK70 ABS valves)
is dropped from model year 2009
30
F2 - Fuse 2 on fuse holder B -SB2- 20 A - ABS control unit -J104- (MK60 ESP valves)
applicable from model year 2009
30
F3 - Fuse 3 on fuse holder B -SB3- 40 A - Voltage stabiliser -J532-
Supply for the fuses:
-SC7-up to-SC11-
for models with stop/start system only
applicable from model year 2010
30
F3 - Fuse 3 on fuse holder B -SB3- 40 A - Supply for the fuses:
-SC7-up to-SC10-
for models without stop/start system only
applicable from model year 2010
30
F4 - Fuse 4 on fuse holder B -SB4- 5 A - Onboard supply control unit -J519- 30
F5 - Fuse 5 on fuse holder B -SB5- 15 A - Treble tone horn -H2-
Bass tone horn -H7-
30
F6 - Fuse 6 on fuse holder B -SB6- 15 A - Fuel pressure regulating valve -N276- (BPY, BWA, BHZ, BZC) 87
F6 - Fuse 6 on fuse holder B -SB6- 15 A - Fuel system pressurisation pump -G6-
Injector, cylinder 1 -N30-
Injector, cylinder 2 -N31-
Injector, cylinder 3 -N32-
Injector, cylinder 4 -N33-
Injector, cylinder 5 -N83-
Injector, cylinder 6 -N84-
for models with engine code BUB only
is dropped from model year 2009
87
F7 - Fuse 7 on fuse holder B -SB7- 15 A - Fuel system pressurisation pump -G6-
Injector, cylinder 1 -N30-
Injector, cylinder 2 -N31-
Injector, cylinder 3 -N32-
Injector, cylinder 4 -N33-
Injector, cylinder 5 -N83-
Injector, cylinder 6 -N84-
for models with engine codes BUB, CBRA only
applicable from model year 2009
87
F7 - Fuse 7 on fuse holder B -SB7- 15 A - Fuel pressure regulating valve -N276-(CDLA, CDLC, BPY)
applicable from model year 2009
87
F8 - Not assigned   -  
F9 - Fuse 9 on fuse holder B -SB9- 10 A - Charge pressure control solenoid valve -N75-
Activated charcoal filter solenoid valve 1 -N80-
Turbocharger air recirculation valve -N249-
for models with engine codes BPY, BWA, BHZ, CDLA, CDLC, BZC only
87
F10 - Fuse 10 on fuse holder B -SB10- 10 A - Fuel system diagnostic pump -V144- (BPY, BWA, BHZ, BZC, CDLA, CDLC) 87
F10 - Fuse 10 on fuse holder B -SB10- 10 A - Air mass meter -G70- (BUB, CBRA) 87
F11 - Fuse 11 on fuse holder B -SB11- 10 A - Lambda probe heater -Z19- (BPY, BWA, BHZ, CDLA, CDLC, BZC) 87
F11 - Fuse 11 on fuse holder B -SB11- 10 A - Lambda probe heater -Z19-(BUB, CBRA)
Lambda probe heater 2 -Z28- (BUB, CBRA)
87
F12 - Fuse 12 on fuse holder B -SB12- 10 A - Lambda probe 1 heater after catalytic converter -Z29- (BPY, BWA, BHZ, CDLA, CDLC, BZC) 87
F12 - Fuse 12 on fuse holder B -SB12- 10 A - Lambda probe 1 heater after catalytic converter -Z29-(BUB, CBRA)
Lambda probe 2 heater after catalytic converter -Z30- (BUB, CBRA)
87
F13 - Fuse 13 on fuse holder B -SB13- 15 A - Mechatronic unit for dual clutch gearbox -J743- 30
F14 - Not assigned - -  
F15 - Fuse 15 on fuse holder B -SB15- 10 A - Continued coolant circulation pump -V51- 87
F16 - Fuse 16 on fuse holder B -SB16- 5 A - Steering column electronics control unit -J527-
is dropped, from model year 2009
30
F17 - Fuse 17 on fuse holder B -SB17- 5 A - Control unit in dash panel insert -J285-
is dropped, from model year 2010
30
F17 - Fuse 17 on fuse holder B -SB17- 5 A - Steering column electronics control unit -J527-
applicable from model year 2009
30
F18 - Fuse 18 on fuse holder B -SB18- 30 A - Amplifier -R12-
Amplifier with bass loudspeaker, on left in luggage compartment -R44-
30
F18 - Fuse 18 on fuse holder B -SB18- 30 A - Voltage stabiliser -J532-
Amplifier -R12-
Amplifier with bass loudspeaker, on left in luggage compartment -R44-
for models with stop/start system only
applicable from model year 2010
30
F19 - Fuse 19 on fuse holder B -SB19- 25 A - Control unit with display for radio and navigation system -J503-
for models with radio navigation system (models for Japan) only
not for models with US equipment
is dropped from model year 2010
30
F19 - Fuse 19 on fuse holder B -SB19- 15 A - Navigation operating electronics control unit -J402-
Control unit with display for radio and navigation system -J503-
Radio -R-
is dropped, from model year 2010
30
F20 - Fuse 20 on fuse holder B -SB20- 5 A - Navigation system with CD drive control unit -J401-
Navigation system tuner for TV -J415-
Telephone transmitter and receiver unit -R36-
Aerial amplifier for mobile telephone -R86-
is dropped, from model year 2010
30
F20 - Fuse 20 on fuse holder B -SB20- 5 A - 18-pin connector -T18a- (VDA interface)
not for models with US equipment
is dropped from model year 2010
30
F20 - Fuse 20 on fuse holder B -SB20- 5 A - Satellite radio -R146-
for models with US equipment only
is dropped from model year 2010
30
F20 - Fuse 20 on fuse holder B -SB20- 5 A - Telephone transmitter and receiver unit -R36-
is dropped, from model year 2010
30
F21 - Not assigned   -  
F22 - Not assigned   -  
F23 - Fuse 23 on fuse holder B -SB23- 10 A - Engine control units -J...-
Motronic current supply relay -J271-
30
F24 - Fuse 24 on fuse holder B -SB24- 5 A - Data bus diagnostic interface -J533- 30
F25 - Not assigned - -  
F26 - Not assigned - -  
F27 - Fuse 27 on fuse holder B -SB27- 5 A - Exhaust flap valve -N220- (BHZ, CDLA, CDLC, BZC) 87
F28 - Fuse 28 on fuse holder B -SB28- 25 A - Engine control units -J...- (BHZ, BUB, BWA, BPY, CDLA, BZC)
is dropped from May 2007, for models with engine codes BUB, BHZ, BWA, BPY, CDLA, CDLC only
87
F28 - Fuse 28 on fuse holder B -SB28- 15 A - Engine control units -J...-
Applicable from May 2007, for models with engine codes BUB, BHZ, BWA, BPY, CDLA, CDLC, CBRA, BZC only
87
F29 - Fuse 29 on fuse holder B -SB29- 5 A - Continued coolant circulation relay -J151-(BWA, BPY, BUB, CDLA, CDLC, CBRA)
Secondary air pump relay -J299- (BUB, CBRA)
87
F30 - Fuse 30 on fuse holder B -SB30- 20 A - Auxiliary heater control unit -J364- 30
F31 - Fuse 31 on fuse holder B -SB31- 30 A - Wiper motor control unit -J400- 30
F32 - Not assigned - -  
F33 - Not assigned - -  
F34 - Not assigned - -  
F35 - Not assigned - -  
F36 - Not assigned - -  
F37 - Not assigned - -  
F38 - Fuse 38 on fuse holder B -SB38- 10 A - Radiator fan control unit -J293-(BPY, BWA, BHZ, BUB, CDLA, CDLC, CBRA, BZC)
Activated charcoal filter solenoid valve 1 -N80-(BUB, CBRA)
Secondary air inlet valve -N112-(BUB, CBRA)
Variable intake manifold change-over valve -N156-(BUB, CBRA)
Camshaft control valve 1 -N205-(BPY, BWA, BHZ, BUB, CDLA, CDLC, CBRA, BZC)
Exhaust camshaft control valve 1 -N318-(BUB, CBRA)
Secondary air inlet valve 2 -N320-(BUB, CBRA)
Fuel system diagnostic pump -V144- (BUB, CBRA)
87
F39 - Fuse 39 on fuse holder B -SB39- 5 A - Clutch position sender -G476- 87
F39 - Fuse 39 on fuse holder B -SB39- 5 A - Brake light switch -F-
Brake pedal switch -F63-
applicable from model year 2010
87
F40 - Fuse 40 on fuse holder B -SB40- 20 A - Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292-
for models with engine codes BPY, BWA, BHZ, CDLA, CDLC, BZC only
87
F41 - Not assigned - -  
F42 - Fuse 42 on fuse holder B -SB42- 5 A - Engine component current supply relay -J757-
for models with engine codes BPY, BWA, BHZ, CDLA, CDLC, BZC only
87
F43 - Fuse 43 on fuse holder B -SB43- 30 A - Ignition coil 1 with output stage -N70-
Ignition coil 2 with output stage -N127-
Ignition coil 3 with output stage -N291-
Ignition coil 4 with output stage -N292-
Ignition coil 5 with output stage -N323-
Ignition coil 6 with output stage -N324-
for models with engine codes BUB, CBRA only
87
F44 - Not assigned - -  
F45 - Not assigned - -  
F46 - Not assigned - -  
F47 - Fuse 47 on fuse holder B -SB47- 30 A - Onboard supply control unit -J519-
Left side light supply, left main beam, left dipped beam, left turn signal, left fog light
30
F48 - Fuse 48 on fuse holder B -SB48- 40 A - ABS control unit -J104-(MK60 ESP pump)
ABS control unit -J104-(MK70 ABS pump and ABS valves)
applicable from model year 2009
30
F48 - Fuse 48 on fuse holder B -SB48- 30 A - Onboard supply control unit -J519-
Right side light supply, right main beam, right dipped beam, right turn signal, right fog light
is dropped from model year 2009
30
F49 - Fuse 49 on fuse holder B -SB49- 40 A - Terminal 15 voltage supply relay 2 -J681-
Supply for the fuses:
-SC1-up to-SC6-,-SC29-up to-SC31-,-SC46-,-SC47-,-SC49-
is dropped, from model year 2009
30
F50 - Not assigned - -  
F51 - Fuse 51 on fuse holder B -SB51- 40 A - Secondary air pump motor -V101- (BUB, CBRA) 30
F52 - Fuse 52 on fuse holder B -SB52- 50 A - Terminal 15 voltage supply relay 2 -J681-
Supply for the fuses:
-SC1-up to-SC6-,-SC19-,-SC20-,-SC29-up to-SC31-,-SC40-,-SC41-,-SC42-,-SC46-,-SC47-,-SC49-
applicable from model year 2009
30
F52 - Fuse 52 on fuse holder B -SB52- 50 A - X-contact relief relay -J59-
Supply for the fuses:
-SC40-,-SC41-,-SC42-
is dropped, from model year 2009
30
F53 - Fuse 53 on fuse holder B -SB53- 50 A - B300Positive connection 4 (30) in main wiring harness
Supply for the fuses:
-SC32-up to-SC37-,-SC44-,-SC45-,-SC48-,-S131-
for models with battery in engine compartment only
is dropped from model year 2009
30
F53 - Fuse 53 on fuse holder B -SB53- 50 A - B300Positive connection 4 (30) in main wiring harness
Supply for the fuses:
-SC32-up to-SC37-,-SC48-,-S131-
for models with battery in luggage compartment only
is dropped from model year 2009
30
F53 - Fuse 53 on fuse holder B -SB53- 50 A - B300Positive connection 4 (30) in main wiring harness
Supply for the fuses:
-SC32-up to-SC37-,-SC39-,-SC44-,-SC45-,-SC48-,-S131-
for models with battery in engine compartment only
applicable from model year 2009
30
F53 - Fuse 53 on fuse holder B -SB53- 50 A - B300Positive connection 4 (30) in main wiring harness
Supply for the fuses:
-SC32-up to-SC37-,-SC39-,-SC48-,-S131-
for models with battery in luggage compartment only
applicable from model year 2009
30

   


AUDI A3 2004 Location Fuse holder C SC , under left dash panel

LocationFuse holder C -SC-, under left dash panel
Fuse colours
AUDI A3 2004 Location Fuse holder C SC , under left dash panel https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
50 A - red
40 A - orange
30 A - light-green
25 A - natural (white)
20 A - yellow
15 A - light blue
10 A - red
7.5 A - brown
5 A - light-brown
3 A - purple

   


AUDI A3 2004 Position of fuses, fuse holder, from model year 2004

Position of fuses, fuse holder, from model year 2004
No.   Designation in Wiring Diagram Nominal value   Function/component Terminal
1 - Fuse 1 on fuse holder C -SC1- 10 A - 16-pin connector -T16-(diagnostic connector)
Light switch -E1-
15
2 - Fuse 2 on fuse holder C -SC2- 5 A - ABS control unit -J104-
TCS and ESP button -E256-
15
3 - Fuse 3 on fuse holder C -SC3- 10 A - Power steering control unit -J500- 15
4 - Fuse 4 on fuse holder C -SC4- 10 A - Heater control unit -J65-1
Air quality sensor -G238-
High pressure sender -G65-
15
5 - Fuse 5 on fuse holder C -SC5- 5 A - Airbag control unit -J234-
Seat occupied recognition control unit -J706-
applicable from model year 2005
15
5 - Fuse 5 on fuse holder C -SC5- 5 A - Clutch position sender -G476-1
Brake light switch -F-1
Brake pedal switch -F63-1
is dropped from April 2003
15
6 - Fuse 6 on fuse holder C -SC6- 5 A - Data bus diagnostic interface -J533-
Function selection switch 2 -E272-1
Trailer detector control unit -J345-
15
7 - Fuse 7 on fuse holder C -SC7- 5 A - Heater control unit -J65-1
Headlight range control, control unit -J431-
Heated rear left seat switch with regulator -E128-
Heated rear right seat switch with regulator -E129-
15
8 - Fuse 8 on fuse holder C -SC8- 10 A - Garage door operating unit -E284-
Navigation system with CD drive control unit -J401-1
Parking aid control unit -J446-
Garage door operation control unit -J530-
Automatic anti-dazzle interior mirror -Y7-
15
9 - Fuse 9 on fuse holder C -SC9- 5 A - Four-wheel drive control unit -J492- 15
10 - Fuse 10 on fuse holder C -SC10- 5 A - Selector lever -E313-
Tiptronic switch -F189-1
15
11 - Fuse 11 on fuse holder C -SC11- 10 A - Trailer socket -U10-1 15
12 - Fuse 12 on fuse holder C -SC12- 10 A - Driver door control unit -J386-
Front passenger door control unit -J387-
30
13 - Fuse 13 on fuse holder C -SC13- 10 A - Brake light switch -F-
16-pin connector -T16- (diagnostic connector)
30
14 - Fuse 14 on fuse holder C -SC14- 5 A - Automatic gearbox control unit -J217-1 30
15 - Fuse 15 on fuse holder C -SC15- 10 A - Onboard supply control unit -J519- 30
16 - Fuse 16 on fuse holder C -SC16- 10 A - Rain and light detector sensor -G397-
Heater control unit -J65-1
Climatronic control unit -J255-
Remote control receiver for auxiliary heater -R64-1
30
17 - Fuse 17 on fuse holder C -SC17- 5 A - Convenience system central control unit -J393- 30
18 - Fuse 18 on fuse holder C -SC18- 5 A - Selector lever -E313-
Tiptronic switch -F189-1
Parking aid control unit -J446-1
ABS control unit -J104-
30
19 - Fuse 19 on fuse holder C -SC19- 10 A - Rear left door control unit -J388-
Rear right door control unit -J389-
30
20 - Not assigned - -   -
21 - Not assigned - -   -
22 - Fuse 22 on fuse holder C -SC22- 40 A - Fresh air blower control unit -J126- 30
23 - Fuse 23 on fuse holder C -SC23- 20 A - Headlight washer system relay -J39-
Headlight washer system pump -V11-
is dropped, from model year 2005
30
24 - Fuse 24 on fuse holder C -SC24- 20 A - Cigarette lighter -U1-
12 V socket -U5-
30
25 - Fuse 25 on fuse holder C -SC25- 30 A - Heated rear window -Z1- 30
26 - Fuse 26 on fuse holder C -SC26- 20 A - Electric socket -U- 30
27 - Fuse 27 on fuse holder C -SC27- 15 A - Fuel pump relay -J17-1
Electric fuel pump 2 relay -J49-1
Fuel pump control unit -J538-
30
28 - Not assigned - -   -
29 - Fuse 29 on fuse holder C -SC29- 10 A - Motronic control unit -J220-
Diesel direct injection system control unit -J248-1
Simos control unit -J361-1
Fuel pump control unit -J538-
Front passenger side airbag deactivated warning lamp -K145-
15
30 - Not assigned - -   -
31 - Fuse 31 on fuse holder C -SC31- 5 A - Reversing light switch -F4-
Mechatronic unit for dual clutch gearbox -J743-
15
32 - Not assigned - -  
33 - Fuse 33 on fuse holder C -SC33- 25 A - Sliding sunroof adjustment control unit -J245- 15
34   Fuse 34 on fuse holder C -SC34- 20 A   Heated rear left seat control unit -J215-1
Heated rear right seat control unit -J216-1
30
35 - Fuse 35 on fuse holder C -SC35- 5 A - Interior monitoring sensor -G273-
Vehicle inclination sender -G384-
Alarm horn -H12-
30
36 - Fuse 36 on fuse holder C -SC36- 10 A - Driver seat lumbar support adjustment switch -E176-
Front passenger seat lumbar support adjustment switch -E177-
30
37 - Fuse 37 on fuse holder C -SC37- 20 A - Climatronic control unit -J255-
Driver seat heating control unit -J726-1
Front passenger seat heating control unit -J727-1
30
38 - Not assigned - -   -
39 - Not assigned - -   -
40 - Fuse 40 on fuse holder C -SC40- 40 A - Fresh air blower switch -E9-1
for models without air conditioning system only
75
41 - Fuse 41 on fuse holder C -SC41- 15 A - Rear window wiper motor -V12- 75
42 - Fuse 42 on fuse holder C -SC42- 15 A - Windscreen and rear window washer pump -V59- 75
43 - Not assigned - -  
44 - Fuse 44 on fuse holder C -SC44- 20 A - Trailer detector control unit -J345-1
Supply for turn signal, brake light, left tail light
30
45 - Fuse 45 on fuse holder C -SC45- 15 A - Trailer detector control unit -J345-1
Supply for rear fog light, reversing light, right tail light
30
46 - Fuse 46 on fuse holder C -SC46- 5 A - Heater control unit -J65-1
Climatronic control unit -J255-
Left washer jet heater element -Z20-
Right washer jet heater element -Z21-
75
47 - Not assigned - -   -
48 - Fuse 48 on fuse holder C -SC48- 10 A - Option driving school vehicle 30
49 - Fuse 49 on fuse holder C -SC49- 10 A - Option driving school vehicle 15
49 - Fuse 49 on fuse holder C -SC49- 5 A - option police 15

1 not for models with US equipment
   


AUDI A3 2004 Position of fuses, fuse holder, from model year 2006

Position of fuses, fuse holder, from model year 2006
No.   Designation in Wiring Diagram Nominal value   Function/component Terminal
1 - Fuse 1 on fuse holder C -SC1- 10 A - Light switch -E1-
Fuel pump relay -J17-
Engine control unit -J623-1
Motronic control unit -J220-
Diesel direct injection system control unit -J248-1
Fuel pump control unit -J538-
16-pin connector -T16- (diagnostic connector)
15
2 - Fuse 2 on fuse holder C -SC2- 5 A - ABS control unit -J104-
Brake light switch -F-
Brake pedal switch -F63-
15
3 - Fuse 3 on fuse holder C -SC3- 5 A - Airbag control unit -J234-
Front passenger side airbag deactivated warning lamp -K145-
15
4 - Fuse 4 on fuse holder C -SC4- 5 A - Tyre pressure monitor button -E226-1
TCS and ESP button -E256-
Reversing light switch -F4-
High pressure sender -G65-
Air quality sensor -G238-
Oil level and oil temperature sender -G266-
Heater control unit -J162-1
Heated rear left seat control unit -J215-1
Heated rear right seat control unit -J216-1
Driver seat heating control unit -J726-1
Front passenger seat heating control unit -J727-1
15
5 - Fuse 5 on fuse holder C -SC5- 5 A - Headlight range control, control unit -J431- 15
      10 A - Headlight range control regulator -E102-1
Left headlight range control motor -V48-1
Right headlight range control motor -V49-1
15
6 - Fuse 6 on fuse holder C -SC6- 5 A - Function selection switch 2 -E272-1
Selector lever -E313-
Tiptronic switch -F189-1
Power steering control unit -J500-
Data bus diagnostic interface -J533-
Mechatronic unit for dual clutch gearbox -J743-
15
7 - Fuse 7 on fuse holder C -SC7- 5 A - Garage door operating unit -E284-
Trailer detector control unit -J345-1
Navigation system with CD drive control unit -J401-1
Navigation operating electronics control unit -J402-
Parking aid control unit -J446-1
Garage door operation control unit -J530-
Automatic anti-dazzle interior mirror -Y7-
15
8 - Fuse 8 on fuse holder C -SC8- 10 A - Trailer socket -U10-1 15
9 - Not assigned - -   -
10 - Fuse 10 on fuse holder C -SC10- 5 A - Seat occupied recognition control unit -J706- 15
11 - Fuse 11 on fuse holder C -SC11- 5 A - Power output module for right headlight -J668- 15
12 - Fuse 12 on fuse holder C -SC12- 10 A - Driver door control unit -J386-
Front passenger door control unit -J387-
30
13 - Fuse 13 on fuse holder C -SC13- 10 A - Brake light switch -F-(brake lights)
16-pin connector -T16- (diagnostic connector)
30
14 - Fuse 14 on fuse holder C -SC14- 5 A - Automatic gearbox control unit -J217-1 30
15 - Fuse 15 on fuse holder C -SC15- 10 A - Onboard supply control unit -J519- 30
16 - Fuse 16 on fuse holder C -SC16- 10 A - Rain and light detector sensor -G397-
Heater control unit -J162-1
Climatronic control unit -J255-
Remote control receiver for auxiliary heater -R64-1
30
17 - Fuse 17 on fuse holder C -SC17- 5 A - Convenience system central control unit -J393- 30
18 - Fuse 18 on fuse holder C -SC18- 5 A - Selector lever -E313-
Tiptronic switch -F189-1
Parking aid control unit -J446-1
30
19 - Fuse 19 on fuse holder C -SC19- 10 A - Rear left door control unit -J388-
Rear right door control unit -J389-
30
20 - Fuse 20 on fuse holder C -SC20- 5 A - ABS control unit -J104-1 30
21 - Not assigned - -   -
22 - Fuse 22 on fuse holder C -SC22- 40 A - Fresh air blower control unit -J126- 30
23 - Fuse 23 on fuse holder C -SC23- 30 A - Driver side window regulator motor -V147- 30
24 - Fuse 24 on fuse holder C -SC24- 20 A - Cigarette lighter -U1-
12 V socket -U5-
30
25 - Fuse 25 on fuse holder C -SC25- 30 A - Heated rear window -Z1- 30
26 - Fuse 26 on fuse holder C -SC26- 20 A - Electric socket -U- 30
27 - Fuse 27 on fuse holder C -SC27- 15 A - Electric fuel pump 2 relay -J49-
Fuel pump control unit -J538-
30
28 - Fuse 28 on fuse holder C -SC28- 30 A - Rear left window regulator motor -V26-
Rear right window regulator motor -V27-
30
29 - Fuse 29 on fuse holder C -SC29- 10 A - Air mass meter -G70-
Heater element for crankcase breather -N79-
15
30 - Fuse 30 on fuse holder C -SC30- 10 A - Injector, cylinder 1 -N30-
Injector, cylinder 2 -N31-
Injector, cylinder 3 -N32-
Injector, cylinder 4 -N33-
Injector, cylinder 5 -N83-
Injector, cylinder 6 -N84-
15
31 - Fuse 31 on fuse holder C -SC31- 5 A - Four-wheel drive control unit -J492- 15
      20 A - Vacuum pump relay -J57-1 15
32 - Fuse 32 on fuse holder C -SC32- 30 A - Headlight washer system pump -V11-
Headlight washer system relay -J39-
30
33 - Fuse 33 on fuse holder C -SC33- 25 A - Sliding sunroof adjustment control unit -J245- 30
34 - Fuse 34 on fuse holder C -SC34- 20 A - Heated rear left seat control unit -J215-1
Heated rear right seat control unit -J216-1
30
35 - Fuse 35 on fuse holder C -SC35- 5 A - Interior monitoring sensor -G273-
Vehicle inclination sender -G384-
Alarm horn -H12-
30
36 - Fuse 36 on fuse holder C -SC36- 10 A - Driver seat lumbar support adjustment switch -E176-
Front passenger seat lumbar support adjustment switch -E177-
30
37 - Fuse 37 on fuse holder C -SC37- 20 A - Climatronic control unit -J255-
Driver seat heating control unit -J726-1
Front passenger seat heating control unit -J727-1
Front left seat heating -Z45-
Front right seat heating -Z46-
30
38 - Fuse 38 on fuse holder C -SC38- 30 A - Front passenger side window regulator motor -V148- 30
39 - Fuse 39 on fuse holder C -SC39- 20 A - Multifunction switch -F125-1
Automatic gearbox control unit -J217-1
15
40 - Fuse 40 on fuse holder C -SC40-   - Fresh air blower switch -E9-1
for models without air conditioning system only
75
41 - Fuse 41 on fuse holder C -SC41- 15 A - Rear window wiper motor -V12- 75
42 - Fuse 42 on fuse holder C -SC42- 15 A - Windscreen and rear window washer pump -V59- 75
43 - Not assigned - -  
44 - Fuse 44 on fuse holder C -SC44- 20 A - Trailer detector control unit -J345-1 30
45 - Fuse 45 on fuse holder C -SC45- 15 A - Trailer detector control unit -J345-1 30
46 - Fuse 46 on fuse holder C -SC46- 5 A - Heater control unit -J162-1
Climatronic control unit -J255-
Left washer jet heater element -Z20-
Right washer jet heater element -Z21-
75
47 - Fuse 47 on fuse holder C -SC47- 5 A - Power output module for left headlight -J667- 15
48 - Fuse 48 on fuse holder C -SC48- 10 A - Electric socket -U-1
for driving school only
30
49 - Fuse 49 on fuse holder C -SC49- 5 A - Special vehicle fuse 6 -S296-1
Footwell light switch -E295-1
Warning buzzer switch -E296-1
15

1 not for models with US equipment
   


AUDI A3 2004 Position of fuses, fuse holder, from model year 2007

Position of fuses, fuse holder, from model year 2007
No.   Designation in Wiring Diagram Nominal value   Function/component Terminal
1 - Fuse 1 on fuse holder C -SC1- 10 A - Light switch -E1-
Headlight range control regulator -E102-1
Air mass meter -G70-(BKC, BXE, AZV, BKD, BLS, BMM, BMN, BPU, BPT, BYZ, BWA, BPY, BHZ, BZB, CAWB, CBFA, BUY, CDAA, CCZA, CCTA, CDLA, CDLC, CAYB, CAYC, BZC, CBEA)
Trailer detector control unit -J345-1
Headlight range control, control unit -J431-
Heater element for crankcase breather -N79-(BSE, BSF, BKC, BXE, AZV, BKD, BLS, BMM, BMN, BUB, BUY, CCSA, CBBB, CBAB, CBAA, CBRA, CAYB, CAYC, CBEA, CFFA, CFFB, CFGB)
16-pin connector -T16-(diagnostic connector)
Left headlight range control motor -V48-1
Right headlight range control motor -V49-1
15
1 - Fuse 1 on fuse holder C -SC1- 10 A - Air mass meter -G70- (CBBB, CBAB, CBAA)
for models without stop/start system
only applicable from model year 2010
15
1 - Fuse 1 on fuse holder C -SC1- 10 A - Stop/start system button -E693-
for models with stop/start system only
no longer fitted, phased in model year 2010
15
2 - Fuse 2 on fuse holder C -SC2- 10 A - Engine control units -J...-
Fuel pump relay -J17-(BSE, BSF, BUB, CCSA, CBRA)
ABS control unit -J104-
Current supply relay for Simos control unit -J363-(BSE, BSF, CCSA) 1
Power steering control unit -J500-
Data bus diagnostic interface -J533-
Fuel pump control unit -J538-(BPU, BYT, BPT, BLF, BVY, BVZ, BPY, BWA, BHZ, CAXC, BZB, CAWB, CBFA, CDAA, CCZA, CCTA, CDLC, CDLA, BZC)
Selector lever sensors control unit -J587-
Mechatronic unit for dual clutch gearbox -J743-
15
2 - Fuse 2 on fuse holder C -SC2- 10 A - Brake light switch -F-
Brake pedal switch -F63-
is dropped, from model year 2010
15
2 - Fuse 2 on fuse holder C -SC2- 10 A - Tiptronic switch -F189-1
Four-wheel drive control unit -J492-
is dropped, from model year 2009
15
2 - Fuse 2 on fuse holder C -SC2- 10 A - Starter relay 1 -J906-
Starter relay 2 -J907-
Automatic anti-dazzle interior mirror relay -J910-
for models with stop/start system only
applicable from model year 2010
15
3 - Fuse 3 on fuse holder C -SC3- 5 A - Airbag control unit -J234-
Front passenger side airbag deactivated warning lamp -K145-
15
4 - Fuse 4 on fuse holder C -SC4- 5 A - Heated rear left seat switch with regulator -E128-1
Heated rear right seat switch with regulator -E129-1
Tyre pressure monitor button -E226-1
TCS and ESP button -E256-
Garage door operating unit -E284-
Reversing light switch -F4-
High pressure sender -G65-
Air quality sensor -G238-
Oil level and oil temperature sender -G266-
Heater control unit -J162-
Climatronic control unit -J255-
Air conditioning system control unit -J301-1
Navigation system with CD drive control unit -J401-1
Parking aid control unit -J446-
Garage door operation control unit -J530-
Seat occupied recognition control unit -J706-
Driver seat heating control unit -J726-1
Front passenger seat heating control unit -J727-1
Left washer jet heater element -Z20-
Right washer jet heater element -Z21-
15
4 - Fuse 4 on fuse holder C -SC4- 5 A - Automatic anti-dazzle interior mirror -Y7-
is dropped, from model year 2010
15
4 - Fuse 4 on fuse holder C -SC4- 5 A - Automatic anti-dazzle interior mirror -Y7-
for models without stop/start system only
applicable from model year 2010
15
4 - Fuse 4 on fuse holder C -SC4- 5 A - Voltage stabiliser -J532-
for models with stop/start system only
applicable from model year 2010
15
4 - Fuse 4 on fuse holder C -SC4- 5 A - Stop/start system button -E693-
for models with stop/start system only
phased-in in model year 2010
15
5 - Fuse 5 on fuse holder C -SC5- 5 A - Power output module for left headlight -J667- 15
6 - Fuse 6 on fuse holder C -SC6- 5 A - Power output module for right headlight -J668- 15
7 - Not assigned - -   -
8 - Fuse 8 on fuse holder C -SC8- 5 A - Control unit in dash panel insert -J285-
applicable from model year 2010
30
9 - Fuse 9 on fuse holder C -SC9- 15 A - Navigation operating electronics control unit -J402-
Control unit with display for radio and navigation system -J503-
Radio -R-
8-pin connector -T8-(preparation for radio) 1
applicable from model year 2010
30
10 - Fuse 10 on fuse holder C -SC10- 7.5 A - Navigation system tuner for TV -J415-1
Telephone transmitter and receiver unit -R36-
Satellite radio -R146-2
Connection for external audio source -R199-
18-pin connector -T18a- (VDA interface) 1
applicable from model year 2010
30
11 - Fuse 11 on fuse holder C -SC11- 10 A - Automatic anti-dazzle interior mirror relay -J910-
Automatic anti-dazzle interior mirror -Y7-
for models with stop/start system only
applicable from model year 2010
30
12 - Fuse 12 on fuse holder C -SC12- 10 A - Driver door control unit -J386-
Front passenger door control unit -J387-
30
13 - Fuse 13 on fuse holder C -SC13- 10 A - Rear left door control unit -J388-
Rear right door control unit -J389-
30
13 - Fuse 13 on fuse holder C -SC13- 10 A - Convenience system central control unit -J393-
is dropped, from model year 2010
30
14 - Fuse 14 on fuse holder C -SC14- 10 A - ABS control unit -J104-
Selector lever sensors control unit -J587-
30
14 - Fuse 14 on fuse holder C -SC14- 10 A - Tiptronic switch -F189-1
Automatic gearbox control unit -J217-1
Parking aid control unit -J446-
is dropped, from model year 2009
30
15 - Fuse 15 on fuse holder C -SC15- 10 A - Front interior light -W-
Front interior light -W1-
Rear interior light -W43-
30
16 - Fuse 16 on fuse holder C -SC16- 10 A - Rain and light detector sensor -G397-
Heater control unit -J162-
Climatronic control unit -J255-
Air conditioning system control unit -J301-1
Tyre pressure monitor control unit -J502-2
Remote control receiver for auxiliary heater -R64-1
16-pin connector -T16- (diagnostic connector)
30
16 - Fuse 16 on fuse holder C -SC16- 10 A - Light switch -E1-
applicable from model year 2010
30
17 - Fuse 17 on fuse holder C -SC17- 5 A - Interior monitoring sensor -G273-1
Vehicle inclination sender -G384-1
Alarm horn -H12-
30
18 - Fuse 18 on fuse holder C -SC18- 5 A - Engine control unit -J623-(diagnosis wire)
for models with engine code CBFA
only is dropped from model year 2010
50
18 - Fuse 18 on fuse holder C -SC18- 5 A - Onboard supply control unit -J519-(diagnosis wire)
Voltage stabiliser -J532-(diagnosis wire)
Engine control unit -J623-(diagnosis wire)
for models with stop/start system
only applicable from model year 2010
50
18 - Fuse 18 on fuse holder C -SC18- 5 A - Onboard supply control unit -J519-(diagnosis wire)
Engine control unit -J623-(diagnosis wire)
for models with engine code CBFA
only applicable from model year 2010
50
19 - Fuse 19 on fuse holder C -SC19- 10 A - Four-wheel drive control unit -J492-
applicable from model year 2009
15
20 - Fuse 20 on fuse holder C -SC20- 5 A - Electronically controlled damping control unit -J250-
applicable from model year 2009
15
21 - Not assigned - -   -
22 - Fuse 22 on fuse holder C -SC22- 40 A - Fresh air blower control unit -J126-
fresh air blower -V2-
30
23 - Fuse 23 on fuse holder C -SC23- 30 A - Driver side window regulator motor -V147- 30
24 - Fuse 24 on fuse holder C -SC24- 20 A - Cigarette lighter -U1- 30
25 - Fuse 25 on fuse holder C -SC25- 30 A - Heated rear window -Z1- 30
26 - Fuse 26 on fuse holder C -SC26- 20 A - Electric socket -U- 30
27 - Fuse 27 on fuse holder C -SC27- 15 A - Fuel pump relay -J17-
(BSE, BSF, CCSA, CBBB, CBAB, CBAA, BKC, BXE, AZV, BKD, BLS, BMM, BUY, BMN, CAYB, CAYC, CBEA, CFFA, CFFB, CFGB)
Fuel pump control unit -J538- (BPU, BYT, BPT, BWA, BPY, BHZ, CAXC, BZB, CAWB, CCTA, CBFA, BLF, BVY, BVZ, CDAA, CCZA, CDLA, CDLC, BZC, CBZB)
30
27 - Fuse 27 on fuse holder C -SC27- 15 A - Electric fuel pump 2 relay -J49- (BSE, BSF, BUB, CCSA, CBRA)
applicable from November 2006, for models with auxiliary heater only, models with engine codes BKC, BXE, AZV, BKD, BLS, BMM, BUY, BMN, CBBB, CBAB, CBAA, CAYB, CAYC, CFFA, CFFB, CFGB
30
27 - Fuse 27 on fuse holder C -SC27- 15 A - Relay for supplementary fuel pump -J832-(CBBB, CBAB, CBAA, CBEA, CFFA, CFFB, CFGB)
Supplementary fuel pump -V393- (CBBB, CBAB, CBAA, CBEA, CFFA, CFFB, CFGB)
30
28 - Fuse 28 on fuse holder C -SC28- 30 A - Rear left window regulator motor -V26-
Rear right window regulator motor -V27-
30
29 - Not assigned - -   -
30 - Fuse 30 on fuse holder C -SC30- 20 A - Multifunction switch -F125-1
Automatic gearbox control unit -J217-1
is dropped from model year 2009
15
31 - Fuse 31 on fuse holder C -SC31- 20 A - Vacuum pump for brakes -V192-(CCSA, BSE, BSF) 1 15
32 - Fuse 32 on fuse holder C -SC32- 30 A - Headlight washer system pump -V11- 30
33 - Fuse 33 on fuse holder C -SC33- 20 A - Sliding sunroof adjustment control unit -J245- 30
34 - Fuse 34 on fuse holder C -SC34- 20 A - Heated rear left seat control unit -J215-1
Heated rear right seat control unit -J216-1
30
35 - Not assigned - -  
36 - Fuse 36 on fuse holder C -SC36- 10 A - Driver seat lumbar support adjustment switch -E176-
Front passenger seat lumbar support adjustment switch -E177-
30
37 - Fuse 37 on fuse holder C -SC37- 20 A - Climatronic control unit -J255-
Driver seat heating control unit -J726-1
Front passenger seat heating control unit -J727-1
30
38 - Fuse 38 on fuse holder C -SC38- 30 A - Front passenger side window regulator motor -V148- 30
39 - Fuse 39 on fuse holder C -SC39- 5 A - Interface control unit for vehicle location system -J843- (interface for special functions) 30
39 - Fuse 39 on fuse holder C -SC39- 25 A - Control unit with display for radio and navigation system -J503-1
for models with radio navigation system (models for Japan) only
applicable from model year 2010
30
40 - Fuse 40 on fuse holder C -SC40- 40 A - Fresh air blower switch -E9-1
fresh air blower -V2-1
is dropped from model year 2009
75
41 - Fuse 41 on fuse holder C -SC41- 15 A - Rear window wiper motor -V12-
is dropped, from model year 2009
75
42 - Fuse 42 on fuse holder C -SC42- 15 A - Windscreen and rear window washer pump -V59-
is dropped, from model year 2009
75
40 - Fuse 40 on fuse holder C -SC40- 40 A - Starter -B-
applicable from model year 2009
15
41 - Fuse 41 on fuse holder C -SC41- 15 A - Rear window wiper motor -V12-
applicable from model year 2009
15
42 - Fuse 42 on fuse holder C -SC42- 15 A - Windscreen and rear window washer pump -V59-
applicable from model year 2009
is dropped from model year 2010
15
43 - Fuse 43 on fuse holder C -SC43- 20 A - Convenience system central control unit -J393-
is dropped, from model year 2010
30
43 - Fuse 43 on fuse holder C -SC43- 20 A - Onboard supply control unit -J519-
applicable from model year 2010
30
44 - Fuse 44 on fuse holder C -SC44- 20 A - Trailer detector control unit -J345-1 30
45 - Fuse 45 on fuse holder C -SC45- 15 A - Trailer detector control unit -J345-1
is dropped from November 2006
30
45 - Fuse 45 on fuse holder C -SC45- 20 A - Trailer detector control unit -J345-1
applicable from November 2006
30
46 - Fuse 46 on fuse holder C -SC46- 10 A - Trailer socket -U10-1 15
47 - Fuse 47 on fuse holder C -SC47- 5 A - 18-pin connector -T18a-(VDA interface) 1 15
47 - Fuse 47 on fuse holder C -SC47- 5 A - Aerial amplifier for mobile telephone -R86-1
applicable from model year 2010
15
48 - Fuse 48 on fuse holder C -SC48- 10 A - Electric socket -U-(driving school vehicle) 1 30
49 - Fuse 49 on fuse holder C -SC49- 5 A - Buzzer and gong -H3-(driving school vehicle) 1
Special vehicle fuse 6 -S296-(German special police, doctor on call vehicle) 1
Driving school vehicle footwell illumination -W56-1
15

1 not for models with US equipment
2 only models with USA equipment
   


AUDI A3 2004 Main fuse box: Location Fuse holder D SD In luggage compartment, rear right

Main fuse box: LocationFuse holder D -SD-In luggage compartment, rear right
Fuse locations:
AUDI A3 2004 Main fuse box: Location Fuse holder D SD In luggage compartment, rear right https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
Position of fuses on main fuse box, from model year 2004
Position of fuses on main fuse box, from model year 2006

   


AUDI A3 2004 Position of fuses, main fuse box, from model year 2004

Position of fuses, main fuse box, from model year 2004
No.   Designation in Wiring Diagram Nominal value   Function/component Terminal
1 - Fuse 1 on fuse holder D -SD1- 5 A - Onboard supply control unit -J519- 30
2 - Fuse 2 on fuse holder D -SD2- 125 A - Supply for main fuse box, electronics box, relay and fuse carrier, electronics box 30
3 - Fuse 3 on fuse holder D -SD3- 80 A - Supply for main fuse box, electronics box, relay and fuse carrier, electronics box 30
4 - Fuse 4 on fuse holder D -SD4- 30 A - Amplifier -R12-
for models with Bose sound system only
30

   


AUDI A3 2004 Position of fuses, main fuse box, from model year 2006

Position of fuses, main fuse box, from model year 2006
No.   Designation in Wiring Diagram Nominal value   Function/component Terminal
1 - Fuse 1 on fuse holder D -SD1- 5 A - Onboard supply control unit -J519- 30
2 - Fuse 2 on fuse holder D -SD2- 125 A - Supply for main fuse box, electronics box high, relay and fuse carrier, electronics box high 30
3 - Fuse 3 on fuse holder D -SD3- 80 A - Supply for main fuse box, electronics box high, relay and fuse carrier, electronics box high 30
4 - Fuse 4 on fuse holder D -SD4- 30 A - Amplifier -R12-
for models with Bose sound system only
is dropped from November 2005
30
      50 A - Option doctor
is dropped from November 2005
 
4 - Fuse 4 on fuse holder D -SD4- 30 A - Supply for the fuses:
-SC12-up to-SC17-,-SC19-
applicable from November 2005
30
4 - Fuse 4 on fuse holder D -SD4- 30 A - Supply for the fuses:
-SC12-up to-SC17-,-SC43-
applicable from May 2006
30

   


AUDI A3 2004 Fuses on left under dash panel

Fuses on left under dash panel
AUDI A3 2004 Fuses on left under dash panel https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
Position of fuses, from model year 2004
B -  Window regulator single fuse -S37-- 30 A
Position of fuses, from model year 2005
A -  Window regulator single fuse 2 -S280-- 30 A
B -  Window regulator single fuse -S37-- 30 A
C -  Fuse 1 -S131-- 30 A
Position of fuses, from model year 2006
C -  Fuse 1 -S131-- 30 A

   


AUDI A3 2004 Overview of earth points in front part of vehicle

Overview of earth points in front part of vehicle
   
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
q   is dropped, from model year 2005
q   is dropped, from model year 2005
4 -  Earth point 4, on front of left longitudinal member -674-
q   Fitting location
q   applicable from model year 2005
q   is dropped from model year 2009
q   is dropped, from model year 2005
5 -  Earth point, on left headlight -655-
q   Fitting location
q   applicable from model year 2005
7 -  Earth point 1, on front of left longitudinal member -671-
q   Fitting location
q   is dropped from model year 2009
q   is dropped from model year 2009
q   Only right-hand drive models

   
Overview of earth points in interior of vehicle
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
5 -  Earth point (audio), under centre console, front -610-
q   Fitting location
8 -  Earth point, airbag control unit -637-
q   Fitting location
q   is dropped, from model year 2005

   
Overview of earth points in rear part of vehicle (3-door models)
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
q   for 5-door models ⇒ page Item
q   for 5-door models ⇒ page Item
q   for 5-door models ⇒ page Item
q   for 5-door models ⇒ page Item

   
Overview of earth points in rear part of vehicle (5-door models)
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file

   12 Earth point, on left in engine compartment, near the battery -arrow-
Torque: 15 Nm
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   607 Earth point, on left in plenum chamber, windscreen wiper motor -arrow-
Torque: 10 Nm
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   609 Earth point, on right in plenum chamber, near air quality sensor -arrow-
Torque: 10 Nm
is dropped, from model year 2005
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   656 Earth point, on right headlight -arrow-
Torque: 10 Nm
is dropped from model year 2009
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   673 Earth point 3 at front of left longitudinal member -arrow-
Torque: 10 Nm
is dropped from model year 2009
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   671 Earth point 1, on front left longitudinal member -arrow A-
Torque: 15 Nm
   655 Earth point, on left headlight, on longitudinal member -arrow B-
Torque: 10 Nm
is dropped, from model year 2005
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   674 Earth point 4, on front left longitudinal member -arrow B-
Torque: 10 Nm
applicable from model year 2005
is dropped from model year 2009
   655 Earth point, on left headlight, on longitudinal member -arrow C-
Torque: 10 Nm
applicable from model year 2005
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   674 Earth point -4-, on front left longitudinal member -arrow C-
Torque: 10 Nm
is dropped, from model year 2005
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   615 Earth point, on left suspension strut -arrow-
Earth points, in interior
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   43 Earth point, lower part of right A-pillar -arrow A-
Torque: 10 Nm
   638 Earth point, right A-pillar -arrow B-
Torque: 10 Nm
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   44 Earth point, lower part of left A-pillar -arrow A-
Torque: 10 Nm
   639 Earth point, left A-pillar -arrow B-
Torque: 10 Nm
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   610 Earth point (audio), under centre console, front -arrow A-
Torque: 10 Nm
   637 Earth point, airbag control unit -arrow B-
Torque: 10 Nm
is dropped, from model year 2005
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   662 Earth point, rear left side panel -arrow-
Torque: 10 Nm
Earth point, in luggage compartment
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   51 Earth point, on right in luggage compartment -arrow-
Torque: 20 Nm
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   53 Earth point, on right in rear lid -arrow-
Torque: 10 Nm
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   61 Earth point, left C-pillar -arrow-
Torque: 10 Nm
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
   62 Earth point, right C-pillar -arrow-
Torque: 10 Nm
 
AUDI A3 2004 Overview of earth points in front part of vehicle https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2004 Overview of control units

Overview of control units
AUDI A3 2004 Overview of control units https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
q   Connector assignment
q   Connector assignment for dual clutch gearbox (02E)
q   Location for dual clutch gearbox (0AM)
q   Connector assignment for dual clutch gearbox (0AM)
q   Connector assignment
5 -  6 -  Garage door operation control unit -J530-
q   Location
q   Connector assignment
8 -  Simos control unit -J361-/Motronic control unit -J220-/Diesel direct injection system control unit -J248-/Engine control unit -J623-
q   Location
q   Connector assignment, 121 pin
q   Connector assignment, 154 pin
9 -  10 -  Auxiliary heater control unit -J364-
q   under the longitudinal member on front right
q   Connector assignment
q   Connector assignment, 47 pin
q   Connector assignment, 26 pin

Automatic gearbox control unit -J217-
   
Location:
under front left wing, near A pillar
 
AUDI A3 2004 Overview of control units https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
Connector assignment.
AUDI A3 2004 Overview of control units https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
A -  Automatic gearbox control unit -J217-
Pin connector:
B -  52-pin connector -T52-



AUDI A3 2004 Wiper motor control unit J400

Location:
in plenum chamber atwindscreen wiper motor -V-
 
AUDI A3 2004 Wiper motor control unit J400 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2004 Mechatronic unit for dual clutch gearbox J743

Mechatronic unit for dual clutch gearbox -J743-
Location:
on gearbox
 
AUDI A3 2004 Mechatronic unit for dual clutch gearbox J743 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
Connector assignment.
AUDI A3 2004 Mechatronic unit for dual clutch gearbox J743 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
A -  Mechatronic unit for dual clutch gearbox -J743-
Pin connector:
B -  20-pin connector -T20e-



AUDI A3 2004 Mechatronic unit for dual clutch gearbox J743

Mechatronic unit for dual clutch gearbox -J743-
   
Location:
on gearbox
 
AUDI A3 2004 Mechatronic unit for dual clutch gearbox J743 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
Connector assignment.
AUDI A3 2004 Mechatronic unit for dual clutch gearbox J743 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
 -  Mechatronic unit for dual clutch gearbox -J743-
Pin connector:
A -  25-pin connector -T25-



AUDI A3 2004 Power steering control unit J500

Power steering control unit -J500-
   
Location:
on steering box -arrow-
 
AUDI A3 2004 Power steering control unit J500 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
Connector assignment.
AUDI A3 2004 Power steering control unit J500 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
A -  Power steering control unit -J500-
Pin connector:
B -  5-pin connector -T5-
C -  5-pin connector -T5a-
D -  2-pin connector -T2a-



AUDI A3 2004 Left gas discharge light control unit J343 / Right gas discharge light control unit J344

Location:
on headlight housing
 
AUDI A3 2004 Left gas discharge light control unit J343 / Right gas discharge light control unit J344 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2004 Garage door operation control unit J530

Garage door operation control unit -J530-
Location:
under front bumper-1-
 
AUDI A3 2004 Garage door operation control unit J530 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
Connector assignment.
AUDI A3 2004 Garage door operation control unit J530 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
 -  Garage door operation control unit -J530-
Pin connector:
A -  4-pin connector -T4ak-



AUDI A3 2004 Radiator fan control unit J293

Location:
on motor forradiator fan -V7-
 
AUDI A3 2004 Radiator fan control unit J293 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2004 Simos control unit J361 / Motronic control unit J220 / Diesel direct injection system control unit J248 / Engine control unit J623

Simos control unit -J361-/Motronic control unit -J220-/Diesel direct injection system control unit -J248-/Engine control unit -J623-
Location:
central in plenum chamber -arrow-
 
AUDI A3 2004 Simos control unit J361 / Motronic control unit J220 / Diesel direct injection system control unit J248 / Engine control unit J623 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
Connector assignment, 121 pin:
AUDI A3 2004 Simos control unit J361 / Motronic control unit J220 / Diesel direct injection system control unit J248 / Engine control unit J623 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
A -  Engine control unit -J623-
Pin connector:
B -  81-pin connector -T81-
C -  40-pin connector -T40-
  Note
-T121-made up of items B and C.

   
Connector assignment, 154 pin:
AUDI A3 2004 Simos control unit J361 / Motronic control unit J220 / Diesel direct injection system control unit J248 / Engine control unit J623 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
A -  Engine control unit
Pin connector:
B -  94-pin connector -T94-
C -  60-pin connector -T60-



AUDI A3 2004 ABS control unit J104

Location:
On bulkhead, in engine compartment, right -arrow-
 
AUDI A3 2004 ABS control unit J104 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
Connector assignment:
AUDI A3 2004 ABS control unit J104 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
A -  ABS control unit (MK60) -J104-
Pin connector:
B -  47-pin connector

   
Connector assignment:
AUDI A3 2004 ABS control unit J104 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
A -  ABS control unit (MK70) -J104-
Pin connector:
B -  26-pin connector

   


AUDI A3 2004 Auxiliary heater control unit J364

Auxiliary heater control unit -J364-
Connector assignment.
AUDI A3 2004 Auxiliary heater control unit J364 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 -  Auxiliary heater control unit -J364-
Pin connector:
2 -  2-pin connector -T2v-
3 -  2-pin connector -T2x-
5 -  4-pin connector -T4u-
6 -  8-pin connector -T8r-
7 -  3-pin connector -T3j-
8 -  8-pin connector -T8q-

   


AUDI A3 2004 Overview of relay

Overview of relay
   
AUDI A3 2004 Overview of relay https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 - 
q   Position of relays on electronics box high, from model year 2004
q   Position of relays on electronics box high, from model year 2006
2 - 
q   Position of relays, from model year 2009
3 -  Position of relays on main fuse box, in luggage compartment, rear right
q   Components:-J655-,-N253-
q   Position of relays, from model year 2004
4 - 
q   Position of relays, from model year 2010
5 -  Relay carrier under electronics box
q   Components:-J179-,-J299-
q   Position of relays, from model year 2004

   
Position of relays on electronics box low, from model year 2006
AUDI A3 2004 Overview of relay https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 -  Motronic current supply relay -J271-
q   Slot A 1
q   for models with engine codes BLF, BLR, BLY, BVY, BVZ, BPT, BPU, BYT, CAXC, BZB, CAWB, CBFA, CCTA, CDAA, CCZA, CBZB only
1 -  Terminal 30 voltage supply relay -J317-
q   Slot A 1
q   for models with engine codes BKC, BXE, AZV, BKD, BLS, BMM, BUY, BMN, CBBB, CBAB, CBAA, CAYB, CAYC, CBEA, CFFA, CFFB, CFGB only
1 -  Current supply relay for Simos control unit -J363-
q   Slot A 1
q   for models with engine codes BSE, BSF, CCSA only
2 -  Wiring bridges, Automatic glow period control unit
q   Slot A 2
q   for models with engine codes BKC, BXE, AZV, BKD, BLS, BMM, BUY, BMN, CBBB, CBAB, CBAA, CAYB, CAYC, CFFA, CFFB, CFGB only
2 - 
q   for models from model year 2009, with engine code CBFA

   


AUDI A3 2004 Position of relays on electronics box high, from model year 2004

Position of relays on electronics box high, from model year 2004
AUDI A3 2004 Position of relays on electronics box high, from model year 2004 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 -  Terminal 15 voltage supply relay -J329-
q   Slot R1
2 -  Terminal 50 voltage supply relay -J682-
q   Slot R2
3 -  Motronic current supply relay -J271-
q   Slot R4
3 -  Terminal 30 voltage supply relay -J317-
q   Slot R4
q   not for models with US equipment
3 -  Current supply relay for Simos control unit -J363-
q   Slot R4
q   not for models with US equipment
4 -  Fuel pump relay -J17-
q   Slot R3

   


AUDI A3 2004 Position of relays on electronics box high, from model year 2006

Position of relays on electronics box high, from model year 2006
AUDI A3 2004 Position of relays on electronics box high, from model year 2006 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 -  Motronic current supply relay -J271-
q   Slot R1
q   for models with engine codes AXX, BPY, BWA, BHZ, BUB, BMJ, CDLA, CDLC, CBRA, BZC only
2 -  Continued coolant circulation relay -J151-
q   Slot R2
q   for models with engine codes AXX, BPY, BWA, BHZ, BUB, BMJ, CDLA, CDLC, CBRA, BZC only
3 -  Fuel pump relay -J17-
q   Slot R4
q   for models with engine codes BUB, BMJ, CBRA only
3 -  Engine component current supply relay -J757-
q   Slot R4
q   for models with engine codes AXX, BPY, BWA, BHZ, CDLA, CDLC, BZC only
4 -  Not assigned
q   Slot R3

   


AUDI A3 2004 Relay positions relay carrier on onboard supply control unit, under left dash panel, from model year 2004

Relay positions relay carrier on onboard supply control unit, under left dash panel, from model year 2004
AUDI A3 2004 Relay positions relay carrier on onboard supply control unit, under left dash panel, from model year 2004 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 -  Terminal 15 voltage supply relay 2 -J681-
q   Slot B 1
2 -  Not assigned
q   Slot B 2
3 -  Heated rear window relay -J9-
q   Slot B 5
4 -  Horn relay -J413-
q   Slot B 6
5 -  X-contact relief relay -J59-
q   Slot B 9
6 -  Double washer pump relay 2 -J730-
q   Slot B 8
7 -  Double washer pump relay 1 -J729-
q   Slot B 7
8 -  Not assigned
q   Slot B 3
9 -  Terminal 15 voltage supply relay 2 -J689-
q   Slot B 4

   


AUDI A3 2004 Relay positions relay carrier on onboard supply control unit, under left dash panel, from model year 2010

Relay positions relay carrier on onboard supply control unit, under left dash panel, from model year 2010
AUDI A3 2004 Relay positions relay carrier on onboard supply control unit, under left dash panel, from model year 2010 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 -  Terminal 15 voltage supply relay 2 -J681-
2 -  Heated rear window relay -J9-
3 -  Horn relay -J413-
3 -  Headlight washer system relay -J39-
4 -  X-contact relief relay -J59-
5 -  High heat output relay -J360-
q   for models with auxiliary air heater only
  Note
-J39-and-J413-are mini-relays and can be found on a relay connector position.

   


AUDI A3 2004 Relay positions under left dash panel, from model year 2004

Relay positions under left dash panel, from model year 2004
AUDI A3 2004 Relay positions under left dash panel, from model year 2004 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 -  Headlight washer system relay -J39-
2 -  Fuel pump relay -J17-
q   Slot 2.1
q   for models with diesel engines only
q   is dropped, from model year 2006
q   for models from model year 2004, engine codes BGU, BDB, BMJ,
q   for models from model year 2006, engine codes BUB, BMJ,
2 -  Electric fuel pump 2 relay -J49-
q   Slot 2.1
q   for models with petrol engines only
q   not for models with engines FSI
q   is dropped, from model year 2006
2 -  Fuel pump relay -J17-
q   Slot 2.1
q   applicable from May 2005
q   is dropped from August 2005
q   for models with engine code BSE, BSF only
2 -  Electric fuel pump 2 relay -J49-
q   Slot 2.2
q   for models with petrol engines only
q   not for models with engines FSI
q   applicable from May 2005
q   is dropped from August 2005
2 -  Fuel pump relay -J17-
q   Slot 2.2
q   applicable from May 2005
q   is dropped from August 2005
q   for models with diesel engines only
2 -  Low heat output relay -J359-
q   applicable from November 2006, only for models with auxiliary air heater
q   for models with diesel engines only
3 -  Terminal 50 voltage supply relay -J682-
q   applicable from May 2005
q   is dropped from August 2005
q   for models from model year 2004
3 -  High heat output relay -J360-
q   applicable from November 2006, only for models with auxiliary air heater
q   for models with diesel engines only
4 -  Terminal 50 voltage supply relay -J682-
q   applicable from August 2005
4 -  Engine power reduction relay 2 -J663-
q   applicable from model year 2005
q   is dropped, from model year 2006
5 -  Electric fuel pump 2 relay -J49-
q   Slot 5.1
q   not for models with US equipment
q   applicable from November 2006, only for models with auxiliary heater
q   for models with diesel engines only
5 -  Continued coolant circulation relay -J151-
q   Slot 5.1
q   applicable from model year 2007
q   for models with engine codes BPT, BPU, BYT, BZB, CAWB, CBFA, CCTA only
q   for models from model year 2004,
q   for models from model year 2006, engine codes AXX, BPY, BWA, BHZ, BUB, BMJ,
5 -  Fuel pump relay -J17-
q   Slot 5.1
q   applicable from August 2005
q   for models with engine code BSE, BSF only
5 - 

AUDI A3 2004 Relay positions under left dash panel, from model year 2009

Relay positions under left dash panel, from model year 2009
AUDI A3 2004 Relay positions under left dash panel, from model year 2009 https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 -  Low heat output relay -J359-
q   for models with auxiliary air heater only
2 -  Terminal 50 voltage supply relay -J682-
q   only models without stop/start system
3 -  Relay for supplementary fuel pump -J832-
q   Slot 3.1
q   for models with engine codes CBAA, CBAB, CBBB only
q   is dropped, from model year 2010
q   for models from model year 2010
3 -  Starter relay 1 -J906-
q   Slot 3.1
q   applicable from model year 2010
q   only models with stop/start system
3 -  Headlight washer system relay -J39-
q   Slot 3.2
q   is dropped, from model year 2010
q   for models from model year 2010
3 -  Starter relay 2 -J907-
q   Slot 3.2
q   applicable from model year 2010
q   only models with stop/start system
4 -  Fuel pump relay -J17-
q   Slot 4.1
q   for models with engine codes BSE, CCSA, BLS, BXE, CBBB, CBAB, CBAA, CAYB, CAYC, CBEA, CFFA, CFFB, CFGB only
q   for models with engine codes BUB, CBRA
4 -  Electric fuel pump 2 relay -J49-
q   Slot 4.1
q   for models with engine codes BUB, CBRA only
4 -  Continued coolant circulation relay -J151-
q   Slot 4.1
q   for models with engine codes CDAA, CCZA, CAWB, CCTA, CBFA only
q   for models with engine codes BUB, CBRA
4 -  Electric fuel pump 2 relay -J49-
q   Slot 4.2
q   for models with engine codes BSE, CCSA or with auxiliary heater only, engine codes BLS, BXE, CBBB, CBAB, CBAA, CAYB, CAYC, CFFA, CFFB, CFGB
4 -  Engine component current supply relay -J757-
q   Slot 4.2
q   for models with engine code CBFA only
5 -  High heat output relay -J360-
q   for models with auxiliary air heater only
q   is dropped, from model year 2010
q   for models from model year 2010
5 -  Automatic anti-dazzle interior mirror relay -J910-
q   Slot 5.1
q   applicable from model year 2010
5 - 

AUDI A3 2004 Position of relays under electronics box

Position of relays under electronics box
AUDI A3 2004 Position of relays under electronics box https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
1 -  Not assigned
2 -  Automatic glow period control unit -J179-
q   Slot R2
q   not for models with US equipment
q   applicable from model year 2004
q   is dropped, from model year 2006
q   for models from model year 2006
3 -  Not assigned
4 -  Continued coolant circulation relay -J151-
q   Slot R6
q   applicable from model year 2004
q   is dropped, from model year 2006
5 -  Secondary air pump relay -J299-
q   Slot R5
q   applicable from model year 2004
q   for models with electronics box low, from model year 2006
q   for models with electronics box high, from model year 2009
6 -  Not assigned
  Note
The relay carrier is only visible when the electronics box removed.

   


AUDI A3 2004 Position of relays under electronics box

Position of relays under electronics box
Position of relays under electronics box low, from model year 2006
1 -  Relay carrier under electronics box in engine compartment, left
2 -  Automatic glow period control unit -J179-
3 -  Not assigned
Position of relays under electronics box high, from model year 2009
1 -  Relay carrier under electronics box in engine compartment, left
2 -  Not assigned
3 -  Secondary air pump relay -J299-
  Note
The relay carrier is only visible when the electronics box removed.
 
AUDI A3 2004 Position of relays under electronics box https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2004 Position of relays on main fuse box, in luggage compartment, rear right

Position of relays on main fuse box, in luggage compartment, rear right
AUDI A3 2004 Position of relays on main fuse box, in luggage compartment, rear right https://portal-diagnostov.com/license.html
https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO
Get access to all wiring diagrams of the carDownload PDF file
5 -  Battery cut-off relay -J655-
5 -  Battery isolation igniter -N253-