AUTOMOTIVE ELECTRICIANS
WIRING-DIAGRAMS

AUDI A3 2005 – Anti-lock brake system (ABS) with electronic stabilisation program (ESP), traction control system (TCS) and hydraulic brake servo (HBS) . Wiring diagrams, Pin Connector, Location

    HomeAUDIAUDI A3AUDI A3 2005AUDI A3 2005 ALL WIRING DIAGRAMS - ENGLISH
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Wiring Diagram AUDI A3 2005 - ABS control unit



Wiring Diagram AUDI A3 2005 - ABS control unit Download PDF file
F Brake light switch
J104 ABS control unit
SB1 Fuse 1 on fuse holder B
SB2 Fuse 2 on fuse holder B
T40 40-pin connector
   B335 Connection 1 (54), in main wiring harness
*Only left-hand drive models
*2Only right-hand drive models

Wiring Diagram AUDI A3 2005 - TCS and ESP button - ABS control unit - Onboard supply control unit - Terminal 15 voltage supply relay 2



Wiring Diagram AUDI A3 2005 - TCS and ESP button - ABS control unit - Onboard supply control unit - Terminal 15 voltage supply relay 2Get access to all wiring diagrams of the carDownload PDF file
E256 TCS and ESP button
J104 ABS control unit
J519 Onboard supply control unit
J681 Terminal 15 voltage supply relay 2
SC2 Fuse 2 on fuse holder C
SC18 Fuse 18 on fuse holder C
SB40 Fuse 40 on fuse holder B
SB49 Fuse 49 on fuse holder B
SB53 Fuse 53 on fuse holder B
T2t 2-pin connector
T12c 12-pin connector
T40 40-pin connector
   368 Earth connection 3, in main wiring harness
   B273 Positive connection (15), in main wiring harness
   B300 Positive connection 4 (30), in main wiring harness
   B318 Positive connection 4 (30a) in main wiring harness
   B467 Connection 3, in main wiring harness
*Only models with battery in luggage compartment
*2Only models with battery in engine compartment
*3Only left-hand drive models
*4Only right-hand drive models

Wiring Diagram AUDI A3 2005 - ABS control unit - Onboard supply control unit



Wiring Diagram AUDI A3 2005 - ABS control unit - Onboard supply control unitGet access to all wiring diagrams of the carDownload PDF file
J104 ABS control unit
J519 Onboard supply control unit
*According to equipment
*2gradual introduction
*3Gradually discontinued

Wiring Diagram AUDI A3 2005 - Rear right speed sensor - Front right speed sensor - Rear left speed sensor - Front left speed sensor - ABS control unit - Onboard supply control unit



Wiring Diagram AUDI A3 2005 - Rear right speed sensor - Front right speed sensor - Rear left speed sensor - Front left speed sensor - ABS control unit - Onboard supply control unitGet access to all wiring diagrams of the carDownload PDF file
G44 Rear right speed sensor
G45 Front right speed sensor
G46 Rear left speed sensor
G47 Front left speed sensor
J104 ABS control unit
J519 Onboard supply control unit
V64 ABS hydraulic pump
   B510 Connection 1 (rear right speed sensor), in interior wiring harness
   B511 Connection 2 (rear right speed sensor), in interior wiring harness
   B512 Connection 1 (rear left speed sensor), in interior wiring harness
   B513 Connection 2 (rear left speed sensor), in interior wiring harness
   J3 Connection 1, in ABS wiring harness
   J5 Connection 2, in ABS wiring harness
   J7 Connection 3, in ABS wiring harness
   J8 Connection 4, in ABS wiring harness
*Only left-hand drive models
*2Only right-hand drive models

Wiring Diagram AUDI A3 2005 - ESP sensor unit - Brake servo vacuum sender - ABS control unit - Onboard supply control unit - ABS hydraulic unit



Wiring Diagram AUDI A3 2005 - ESP sensor unit - Brake servo vacuum sender - ABS control unit - Onboard supply control unit - ABS hydraulic unitGet access to all wiring diagrams of the carDownload PDF file
G200 Lateral acceleration sender
G202 Yaw rate sender
G251 Longitudinal acceleration sender
G419 ESP sensor unit
G483 Brake servo vacuum sender
J104 ABS control unit
J519 Onboard supply control unit
N55 ABS hydraulic unit
N99 Front right ABS inlet valve
N100 Front right ABS outlet valve
N101 Front left ABS inlet valve
N102 Front left ABS outlet valve
N133 Rear right ABS inlet valve
N134 Rear left ABS inlet valve
N135 Rear right ABS outlet valve
N136 Rear left ABS outlet valve
N225 Vehicle stabilization program switch valve 1
N226 Vehicle stabilization program switch valve 2
N227 Vehicle stabilization program high-pressure valve 1
N228 Vehicle stabilization program high-pressure valve 2
*Only models with all-wheel drive

Wiring Diagram AUDI A3 2005 - Brake pressure sender 1 - ABS control unit - Headlight range control unit - Onboard supply control unit - Steering column electronics control unit - Data bus diagnostic interface



Wiring Diagram AUDI A3 2005 - Brake pressure sender 1 - ABS control unit - Headlight range control unit - Onboard supply control unit - Steering column electronics control unit - Data bus diagnostic interfaceGet access to all wiring diagrams of the carDownload PDF file
G201 Brake pressure sender 1
J104 ABS control unit
J329 Terminal 15 voltage supply relay
J431 Headlight range control unit
J519 Onboard supply control unit
J527 Steering column electronics control unit
J533 Data bus diagnostic interface
T8h 8-pin connector
T11c 11-pin connector
T20b 20-pin connector
T20d 20-pin connector
T26a 26-pin connector
T40 40-pin connector
   366 Earth connection 1, in main wiring harness
   B383 Connection 1 (powertrain CAN bus, high), in main wiring harness
   B390 Connection 1 (powertrain CAN bus, low), in main wiring harness
   B464 Connection (speed signal), in main wiring harness
*Only models with navigation system
*2see applicable current flow diagram

Wiring Diagram AUDI A3 2005 - Steering angle sender - Control unit in dash panel insert - Steering column electronics control unit - Data bus diagnostic interface - ABS warning lamp - ESP and TCS warning lamp



Wiring Diagram AUDI A3 2005 - Steering angle sender - Control unit in dash panel insert - Steering column electronics control unit - Data bus diagnostic interface - ABS warning lamp - ESP and TCS warning lampGet access to all wiring diagrams of the carDownload PDF file
G85 Steering angle sender
J285 Control unit in dash panel insert
J527 Steering column electronics control unit
J533 Data bus diagnostic interface
K47 ABS warning lamp
K155 ESP and TCS warning lamp
SB16 Fuse 16 on fuse holder B
T20b 20-pin connector
T20d 20-pin connector
T32 32-pin connector
T40 40-pin connector
   369 Earth connection 4, in main wiring harness
*Only left-hand drive models
*2Only right-hand drive models


AUDI A3 2005 Overview of control units

Overview of control units
AUDI A3 2005 Overview of control unitsGet 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-
   
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Connector assignment.
AUDI A3 2005 Overview of control unitsGet 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 2005 Wiper motor control unit J400

Location:
in plenum chamber atwindscreen wiper motor -V-
 
AUDI A3 2005 Wiper motor control unit J400Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2005 Mechatronic unit for dual clutch gearbox J743

Mechatronic unit for dual clutch gearbox -J743-
Download PDF file
Connector assignment.
AUDI A3 2005 Mechatronic unit for dual clutch gearbox J743Get 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 2005 Mechatronic unit for dual clutch gearbox J743

Download PDF file
Connector assignment.
AUDI A3 2005 Mechatronic unit for dual clutch gearbox J743Get 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 2005 Power steering control unit J500

Power steering control unit -J500-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Power steering control unit J500Get 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 2005 Left gas discharge light control unit J343 / Right gas discharge light control unit J344

Location:
on headlight housing
 
AUDI A3 2005 Left gas discharge light control unit J343 / Right gas discharge light control unit J344Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2005 Garage door operation control unit J530

Garage door operation control unit -J530-
Download PDF file
Connector assignment.
AUDI A3 2005 Garage door operation control unit J530Get 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 2005 Radiator fan control unit J293

Location:
on motor forradiator fan -V7-
 
AUDI A3 2005 Radiator fan control unit J293Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2005 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 2005 Simos control unit J361 / Motronic control unit J220 / Diesel direct injection system control unit J248 / Engine control unit J623Get access to all wiring diagrams of the carDownload PDF file
Connector assignment, 121 pin:
AUDI A3 2005 Simos control unit J361 / Motronic control unit J220 / Diesel direct injection system control unit J248 / Engine control unit J623Get 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 2005 Simos control unit J361 / Motronic control unit J220 / Diesel direct injection system control unit J248 / Engine control unit J623Get 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 2005 ABS control unit J104

Location:
On bulkhead, in engine compartment, right -arrow-
 
AUDI A3 2005 ABS control unit J104Get access to all wiring diagrams of the carDownload PDF file
Connector assignment:
AUDI A3 2005 ABS control unit J104Get 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 2005 ABS control unit J104Get access to all wiring diagrams of the carDownload PDF file
A -  ABS control unit (MK70) -J104-
Pin connector:
B -  26-pin connector

   


AUDI A3 2005 Auxiliary heater control unit J364

Auxiliary heater control unit -J364-
Connector assignment.
AUDI A3 2005 Auxiliary heater control unit J364Get 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 2005 Overview of fuses

Overview of fuses
AUDI A3 2005 Overview of fusesGet 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 2005 Overview of fusesGet access to all wiring diagrams of the carDownload PDF file
M -  Screw connection M (terminal 30)

   


AUDI A3 2005 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 2005 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 2005 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 2005 Main fuse holder: Position fuse holder A SA on electronics box low, from November 2008Get access to all wiring diagrams of the carDownload PDF file
M -  Screw connection M (terminal 30)

   


AUDI A3 2005 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 2005 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 2005 Main fuse holder: Position fuse holder A SA on electronics box highGet 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 2005 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 2005 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 2005 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 2005 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 2005 Position of fuses electronics box high, engine codes BMJ, BUB, CBRA, from model year 2006Get 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 2005 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 2005 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 2005 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 2005 Location Fuse holder B SB on electronics box high, in left engine compartmentGet 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 2005 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 2005 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 2005 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 2005 Location Fuse holder C SC , under left dash panel

LocationFuse holder C -SC-, under left dash panel
Fuse colours
AUDI A3 2005 Location Fuse holder C SC , under left dash panelGet 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 2005 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 2005 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 2005 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 2005 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 2005 Main fuse box: Location Fuse holder D SD In luggage compartment, rear rightGet 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 2005 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 2005 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 2005 Fuses on left under dash panel

Fuses on left under dash panel
AUDI A3 2005 Fuses on left under dash panelGet 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 2005 Overview of earth points in front part of vehicle

Overview of earth points in front part of vehicle
   
AUDI A3 2005 Overview of earth points in front part of vehicleGet 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 2005 Overview of earth points in front part of vehicleGet 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 2005 Overview of earth points in front part of vehicleGet 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 2005 Overview of earth points in front part of vehicleGet access to all wiring diagrams of the carDownload PDF file

Download PDF file
   607 Earth point, on left in plenum chamber, windscreen wiper motor -arrow-
Torque: 10 Nm
 
AUDI A3 2005 Overview of earth points in front part of vehicleGet 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 2005 Overview of earth points in front part of vehicleGet 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 2005 Overview of earth points in front part of vehicleGet 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 2005 Overview of earth points in front part of vehicleGet access to all wiring diagrams of the carDownload PDF file
   671 Earth point 1, on front left longitudinal member -arrow A-
Torque: 15 Nm
Download 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
Download PDF file
   674 Earth point -4-, on front left longitudinal member -arrow C-
Torque: 10 Nm
is dropped, from model year 2005
 
AUDI A3 2005 Overview of earth points in front part of vehicleGet access to all wiring diagrams of the carDownload PDF file
   615 Earth point, on left suspension strut -arrow-
Download PDF file
   43 Earth point, lower part of right A-pillar -arrow A-
Torque: 10 Nm
Download PDF file
   44 Earth point, lower part of left A-pillar -arrow A-
Torque: 10 Nm
Download PDF file
   610 Earth point (audio), under centre console, front -arrow A-
Torque: 10 Nm
Download PDF file
   662 Earth point, rear left side panel -arrow-
Torque: 10 Nm
Earth point, in luggage compartment
 
AUDI A3 2005 Overview of earth points in front part of vehicleGet access to all wiring diagrams of the carDownload PDF file
   51 Earth point, on right in luggage compartment -arrow-
Torque: 20 Nm
 
AUDI A3 2005 Overview of earth points in front part of vehicleGet access to all wiring diagrams of the carDownload PDF file
   53 Earth point, on right in rear lid -arrow-
Torque: 10 Nm
 
AUDI A3 2005 Overview of earth points in front part of vehicleGet access to all wiring diagrams of the carDownload PDF file
   61 Earth point, left C-pillar -arrow-
Torque: 10 Nm
 
AUDI A3 2005 Overview of earth points in front part of vehicleGet access to all wiring diagrams of the carDownload PDF file
   62 Earth point, right C-pillar -arrow-
Torque: 10 Nm
 
AUDI A3 2005 Overview of earth points in front part of vehicleGet access to all wiring diagrams of the carDownload PDF file


AUDI A3 2005 Overview of control units

Overview of control units
AUDI A3 2005 Overview of control unitsGet access to all wiring diagrams of the carDownload PDF file
q   Connector assignment
q   Connector assignment
q   not for models with US equipment
2 - 
q   Connector assignment
q   Connector assignment
q   not for models with US equipment
q   Connector assignment
q   for models with 5-door models only
q   Connector assignment
q   Connector assignment
q   Connector assignment
q   for models with 5-door models only
q   Connector assignment
q   not for models with US equipment
q   Connector assignment
q   not for models with US equipment
q   Connector assignment
q   Connector assignment
q   Location, from model year 2010
q   Connector assignment, from model year 2004
q   Connector assignment, from model year 2010
Heater control unit -J162-
q   Location
13 - 
q   Connector assignment
13 -  14 -  Auxiliary air heater control unit -J604-
q   Location
q   Connector assignment
q   not for models with US equipment
q   Connector assignment
16 - 
q   Connector assignment
q   Connector assignment
q   Connector assignment, 75 pin
q   Connector assignment, 84 pin
q   Connector assignment, 100 pin
Control unit with display for radio and navigation system -J503-
q   Location
20 - 

Headlight range control, control unit -J431-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Overview of control unitsGet access to all wiring diagrams of the carDownload PDF file
A -  Headlight range control, control unit -J431-
Pin connector:
B -  26-pin connector -T26a-



AUDI A3 2005 Front passenger seat heating control unit J727

Front passenger seat heating control unit -J727-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Front passenger seat heating control unit J727Get access to all wiring diagrams of the carDownload PDF file
 -  Front passenger seat heating control unit -J727-
Pin connector:
A -  6-pin connector -T6p-



AUDI A3 2005 Sliding sunroof adjustment control unit J245

Sliding sunroof adjustment control unit -J245-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Sliding sunroof adjustment control unit J245Get access to all wiring diagrams of the carDownload PDF file
 -  Sliding sunroof adjustment control unit -J245-
Pin connector:
A -  6-pin connector -T6b-
B -  6-pin connector -T6t-

   


AUDI A3 2005 NOx sensor control unit J583

NOx sensor control unit -J583-
Location:
on underbody, near NOx catalytic converter
 
AUDI A3 2005 NOx sensor control unit J583Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2005 Rear left door control unit J388 / Rear right door control unit J389

Rear left door control unit -J388-/Rear right door control unit -J389-
Location:
in rear door
 
AUDI A3 2005 Rear left door control unit J388 / Rear right door control unit J389Get access to all wiring diagrams of the carDownload PDF file
Connector assignment.
AUDI A3 2005 Rear left door control unit J388 / Rear right door control unit J389Get access to all wiring diagrams of the carDownload PDF file
A -  Rear left door control unit -J388-
Pin connector:
B -  32-pin connector -T32e-
C -  16-pin connector(Vacant)
D -  20-pin connector -T20n-

   
Connector assignment.
AUDI A3 2005 Rear left door control unit J388 / Rear right door control unit J389Get access to all wiring diagrams of the carDownload PDF file
A -  Rear right door control unit -J389-
Pin connector:
B -  32-pin connector -T32f-
C -  16-pin connector(Vacant)
D -  20-pin connector -T20o-



AUDI A3 2005 Control unit in dash panel insert J285

Control unit in dash panel insert -J285-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Control unit in dash panel insert J285Get access to all wiring diagrams of the carDownload PDF file
 -  Control unit in dash panel insert -J285-
Pin connector:
A -  32-pin connector -T32-



AUDI A3 2005 Fuel pump control unit J538

Fuel pump control unit -J538-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Fuel pump control unit J538Get access to all wiring diagrams of the carDownload PDF file
A -  Fuel pump control unit -J538-
Pin connector:
B -  10-pin connector -T10b-



AUDI A3 2005 Driver seat heating control unit J726

Driver seat heating control unit -J726-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Driver seat heating control unit J726Get access to all wiring diagrams of the carDownload PDF file
 -  Driver seat heating control unit -J726-
Pin connector:
A -  6-pin connector -T6o-



AUDI A3 2005 Steering column electronics control unit J527

Steering column electronics control unit -J527-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Steering column electronics control unit J527Get access to all wiring diagrams of the carDownload PDF file
A -  Steering column electronics control unit -J527-
B -  4-pin connector(Airbag mounting)
C -  10-pin connector(Cruise control system and turn signal support)
D -  20-pin connector -T20b-
E -  4-pin connector -T4n-
F -  12-pin connector(Ignition/starter switch and ignition key withdrawal lock support)
G -  8-pin connector(Wiper support, interval potentiometer and multifunction system)
H -  10-pin connector(Steering angle sensor support)
I -  10-pin connector(Coil connector support)



AUDI A3 2005 Driver door control unit J386

Driver door control unit -J386-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Driver door control unit J386Get access to all wiring diagrams of the carDownload PDF file
A -  Driver door control unit -J386-
Pin connector:
B -  32-pin connector -T32a-
C -  16-pin connector -T16b-
D -  20-pin connector -T20f-



AUDI A3 2005 Onboard supply control unit J519

Onboard supply control unit -J519-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Onboard supply control unit J519Get access to all wiring diagrams of the carDownload PDF file
 -  Onboard supply control unit -J519-
Pin connector:
A -  11-pin connector -T11b-
B -  12-pin connector -T12c-
C -  12-pin connector -T12d-
D -  11-pin connector -T11c-
E -  16-pin connector -T16a-
F -  8-pin connector -T8h-
G -  12-pin connector -T12e-
H -  12-pin connector
I -  2-pin connector -T2b-
J -  6-pin connector -T6h-
K -  10-pin connector -T10d-
L -  2-pin connector -T2t-



AUDI A3 2005 Onboard supply control unit J519

Download PDF file
Connector assignment.
AUDI A3 2005 Onboard supply control unit J519Get access to all wiring diagrams of the carDownload PDF file
 -  Onboard supply control unit -J519-
Pin connector:
A -  52-pin connector -T52a-
B -  52-pin connector -T52b-
C -  52-pin connector -T52c-

   


AUDI A3 2005 Heater control unit J65 / Heater control unit J162

Heater control unit -J65-/Heater control unit -J162-
Location:
in centre console
 
AUDI A3 2005 Heater control unit J65 / Heater control unit J162Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2005 Climatronic control unit J255

Download PDF file
Connector assignment.
AUDI A3 2005 Climatronic control unit J255Get access to all wiring diagrams of the carDownload PDF file
 -  Climatronic control unit -J255-
Pin connector:
A -  12-pin connector -T12f-
B -  20-pin connector -T20j-
C -  16-pin connector -T16e-
D -  16-pin connector -T16d-



AUDI A3 2005 Data bus diagnostic interface J533

Data bus diagnostic interface -J533-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Data bus diagnostic interface J533Get access to all wiring diagrams of the carDownload PDF file
A -  Data bus diagnostic interface -J533-
Pin connector:
B -  20-pin connector -T20d-

   


AUDI A3 2005 Fresh air blower control unit J126

Fresh air blower control unit -J126-
Location:
Under glove compartment, onFresh air blower -V2-
 
AUDI A3 2005 Fresh air blower control unit J126Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2005 Front passenger door control unit J387

Download PDF file
Connector assignment.
AUDI A3 2005 Front passenger door control unit J387Get access to all wiring diagrams of the carDownload PDF file
A -  Front passenger door control unit -J387-
Pin connector:
B -  32-pin connector -T32b-
C -  16-pin connector -T16c-
D -  20-pin connector -T20g-



AUDI A3 2005 Airbag control unit J234

Airbag control unit -J234-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Airbag control unit J234Get access to all wiring diagrams of the carDownload PDF file
A -  Airbag control unit -J234-
Pin connector:
B -  75-pin connector -T75-

   
Connector assignment.
AUDI A3 2005 Airbag control unit J234Get access to all wiring diagrams of the carDownload PDF file
 -  Airbag control unit -J234-
Pin connector:
A -  84-pin connector -T84-
A -  84-pin connector -T84a-

   
Connector assignment.
AUDI A3 2005 Airbag control unit J234Get access to all wiring diagrams of the carDownload PDF file
 -  Airbag control unit -J234-
Pin connector:
A -  100-pin connector -T100-
A -  100-pin connector -T100a-



AUDI A3 2005 Auxiliary air heater control unit J604

Auxiliary air heater control unit -J604-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Auxiliary air heater control unit J604Get access to all wiring diagrams of the carDownload PDF file
 -  Auxiliary air heater control unit -J604-
Pin connector:
A -  4-pin connector -T4l-

   


AUDI A3 2005 Radio R / Control unit with display for radio and navigation system J503 (RNS-low)

Radio -R-/Control unit with display for radio and navigation system -J503- (RNS-low)
Location:
In centre console -arrow-
 
AUDI A3 2005 Radio R / Control unit with display for radio and navigation system J503 (RNS-low)Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2005 Navigation operating electronics control unit J402 (RNS-E)

Navigation operating electronics control unit -J402- (RNS-E)
Location:
in centre console
 
AUDI A3 2005 Navigation operating electronics control unit J402 (RNS-E)Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2005 CD changer R41

CD changer -R41-
Location:
In glove box -arrow-
 
AUDI A3 2005 CD changer R41Get access to all wiring diagrams of the carDownload PDF file


AUDI A3 2005 Electronically controlled damping control unit J250

Download PDF file
Connector assignment.
AUDI A3 2005 Electronically controlled damping control unit J250Get access to all wiring diagrams of the carDownload PDF file
 -  Electronically controlled damping control unit -J250-
Pin connector:
A -  47-pin connector -T47-



AUDI A3 2005 Tyre pressure monitor control unit J502

Tyre pressure monitor control unit -J502-
   
Download PDF file
Connector assignment.
AUDI A3 2005 Tyre pressure monitor control unit J502Get access to all wiring diagrams of the carDownload PDF file
 -  Tyre pressure monitor control unit -J502-
Pin connector:
A -  20-pin connector -T20q-



AUDI A3 2005 Voltage stabiliser J532

Download PDF file
Download PDF file


AUDI A3 2005 Overview of relay

Overview of relay
   
AUDI A3 2005 Overview of relayGet 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 2005 Overview of relayGet 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 2005 Position of relays on electronics box high, from model year 2004

Position of relays on electronics box high, from model year 2004
AUDI A3 2005 Position of relays on electronics box high, from model year 2004Get 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 2005 Position of relays on electronics box high, from model year 2006

Position of relays on electronics box high, from model year 2006
AUDI A3 2005 Position of relays on electronics box high, from model year 2006Get 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 2005 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 2005 Relay positions relay carrier on onboard supply control unit, under left dash panel, from model year 2004Get 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 2005 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 2005 Relay positions relay carrier on onboard supply control unit, under left dash panel, from model year 2010Get 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 2005 Relay positions under left dash panel, from model year 2004

Relay positions under left dash panel, from model year 2004
AUDI A3 2005 Relay positions under left dash panel, from model year 2004Get 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 2005 Relay positions under left dash panel, from model year 2009

Relay positions under left dash panel, from model year 2009
AUDI A3 2005 Relay positions under left dash panel, from model year 2009Get 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 2005 Position of relays under electronics box

Position of relays under electronics box
AUDI A3 2005 Position of relays under electronics boxGet 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 2005 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 2005 Position of relays under electronics boxGet access to all wiring diagrams of the carDownload PDF file


AUDI A3 2005 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 2005 Position of relays on main fuse box, in luggage compartment, rear rightGet access to all wiring diagrams of the carDownload PDF file
5 -  Battery cut-off relay -J655-
5 -  Battery isolation igniter -N253-

   
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