AUTOMOTIVE ELECTRICIANS
WIRING-DIAGRAMS

AUDI A3 CABRIOLET 2012 – Ultrasonic parking aid, rear . Wiring diagrams, Pin Connector, Location

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Wiring Diagram AUDI A3 CABRIOLET 2012 - Terminal 15 voltage supply relay 2 - parking aid control unit - fuses on fuse holder



Wiring Diagram AUDI A3 CABRIOLET 2012 - Terminal 15 voltage supply relay 2 - parking aid control unit - fuses on fuse holder
J446Parking aid control unit
J519Onboard supply control unit
J681Terminal 15 voltage supply relay 2
SB30Fuse 30 on fuse holder B
SC4Fuse 4 on fuse holder C
T2t2-pin connector, black (connector L)
T16f16-pin connector, brown (connector A)
T4040-pin connector, black, on electronics box in engine compartment (connector J)
T52b52-pin connector, white (connector B)
   391 Earth connection 26, in main wiring harness
   392 Earth connection 27, in main wiring harness
   B273 Positive connection (15), in main wiring harness
   B281 Positive connection 5 (15a), in main wiring harness
*is dropped from May 2009
**applicable from May 2009

Wiring Diagram AUDI A3 CABRIOLET 2012 - Parking aid control unit - data bus diagnostic interface



Wiring Diagram AUDI A3 CABRIOLET 2012 - Parking aid control unit - data bus diagnostic interfaceUnlock Lifetime Access for This Car.
J446Parking aid control unit
J533Data bus diagnostic interface
T16f16-pin connector, brown (connector A)
T20d20-pin connector, black (connector A)
   B383 Connection 1 (drive train CAN bus, high), in main wiring harness
   B384 Connection 2 (drive train CAN bus, high), in main wiring harness
   B390 Connection 1 (drive train CAN bus, low), in main wiring harness
   B391 Connection 2 (drive train CAN bus, low), in main wiring harness

Wiring Diagram AUDI A3 CABRIOLET 2012 - Parking aid sender - parking aid warning buzzer - parking aid control unit



Wiring Diagram AUDI A3 CABRIOLET 2012 - Parking aid sender - parking aid warning buzzer - parking aid control unitUnlock Lifetime Access for This Car.
G203Rear left parking aid sender
G204Rear centre left parking aid sender
G205Rear centre right parking aid sender
G206Rear right parking aid sender
H15Rear parking aid warning buzzer
J446Parking aid control unit
T12i12-pin connector, black (connector C)
T16f16-pin connector, brown (connector A)
   352 Earth connection (parking aid), in rear bumper wiring harness
   X68 Connection (parking aid), in rear bumper wiring harness
*No longer fitted, phased-in modification
**phased-in modification


AUDI A3 CABRIOLET 2012 Overview of control units

Overview of control units
   
AUDI A3 CABRIOLET 2012 Overview of control unitsUnlock Lifetime Access for This Car.
1 - 
q   Connector assigment -J345-
q   Connector assigment -J393-
2 -  Convertible roof actuation control unit -J256-
q   Location
q   Connector assigment

   
Control units on right in luggage compartment    
Connector assignment.
AUDI A3 CABRIOLET 2012 Overview of control unitsUnlock Lifetime Access for This Car.
A -  Trailer detector control unit -J345-

Audi A3 Cabriolet Fitting Locations No.  806 / 4
   
Connector assignment.
AUDI A3 CABRIOLET 2012 Overview of control unitsUnlock Lifetime Access for This Car.
A -  Convenience system central control unit -J393-

Audi A3 Cabriolet Fitting Locations No.  806 / 5
Location:
behind side trim on left -arrow-
 
AUDI A3 CABRIOLET 2012 Overview of control unitsUnlock Lifetime Access for This Car.
Location:
on rear axle differential, front left
 
AUDI A3 CABRIOLET 2012 Overview of control unitsUnlock Lifetime Access for This Car.
Connector assignment.
AUDI A3 CABRIOLET 2012 Overview of control unitsUnlock Lifetime Access for This Car.
 -  All-wheel drive control unit - J492 -
Connector:
A -  2-pin connector -T2ax-
B -  8-pin connector, black -T8y-

   


AUDI A3 CABRIOLET 2012 Overview of control units

Overview of control units
AUDI A3 CABRIOLET 2012 Overview of control unitsUnlock Lifetime Access for This Car.
q   Connector assignment
q   Connector assignment
q   Connector assignment
q   Connector assignment
q   Connector assignment
q   Connector assignment
q   Connector assignment
q   Connector assignment
q   Location from May 2009
q   Connector assignment from March 2008
q   Connector assignment from May 2009
-J162-
q   Location
9 - 
q   Connector assignment
q   Connector assignment
11 - 
q   Connector assignment
q   Connector assignment
q   Connector assignment
Control unit with display for radio and navigation system -J503-
q   Location
15 - 

Headlight range control, control unit -J431-
   
Connector assignment.
AUDI A3 CABRIOLET 2012 Overview of control unitsUnlock Lifetime Access for This Car.
A -  Headlight range control, control unit -J431-
Connector:
B -  26-pin connector -T26a-



AUDI A3 CABRIOLET 2012 Front passenger seat heating control unit J727

Front passenger seat heating control unit -J727-
   
Connector assignment.
AUDI A3 CABRIOLET 2012 Front passenger seat heating control unit J727Unlock Lifetime Access for This Car.
 -  Front passenger seat heating control unit -J727-
Connector:
A -  6-pin connector -T6p-



AUDI A3 CABRIOLET 2012 Control unit in dash panel insert J285

Control unit in dash panel insert -J285-
   
Connector assignment.
AUDI A3 CABRIOLET 2012 Control unit in dash panel insert J285Unlock Lifetime Access for This Car.
 -  Control unit in dash panel insert -J285-
Connector:
A -  32-pin connector -T32-



AUDI A3 CABRIOLET 2012 Fuel pump control unit J538

Fuel pump control unit -J538-
   
Connector assignment.
AUDI A3 CABRIOLET 2012 Fuel pump control unit J538Unlock Lifetime Access for This Car.
A -  Fuel pump control unit -J538-
Connector:
B -  10-pin connector -T10b-



AUDI A3 CABRIOLET 2012 Driver seat heating control unit J726

Driver seat heating control unit -J726-
   
Connector assignment.
AUDI A3 CABRIOLET 2012 Driver seat heating control unit J726Unlock Lifetime Access for This Car.
 -  Driver seat heating control unit -J726-
Connector:
A -  6-pin connector -T6o-



AUDI A3 CABRIOLET 2012 Steering column electronics control unit J527

Steering column electronics control unit -J527-
   
Connector assignment.
AUDI A3 CABRIOLET 2012 Steering column electronics control unit J527Unlock Lifetime Access for This Car.
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 CABRIOLET 2012 Driver door control unit J386

Driver door control unit -J386-
   
Connector assignment.
AUDI A3 CABRIOLET 2012 Driver door control unit J386Unlock Lifetime Access for This Car.
A -  Driver door control unit -J386-
Connector:
B -  32-pin connector -T32a-
C -  16-pin connector -T16b-
D -  20-pin connector -T20f-



AUDI A3 CABRIOLET 2012 Onboard supply control unit J519

Onboard supply control unit -J519-
   
Connector assignment.
AUDI A3 CABRIOLET 2012 Onboard supply control unit J519Unlock Lifetime Access for This Car.
 -  Onboard supply control unit -J519-
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 CABRIOLET 2012 Onboard supply control unit J519

Connector assignment.
AUDI A3 CABRIOLET 2012 Onboard supply control unit J519Unlock Lifetime Access for This Car.
 -  Onboard supply control unit -J519-
Connector:
A -  52-pin connector -T52a-
B -  52-pin connector -T52b-
C -  52-pin connector -T52c-

   


AUDI A3 CABRIOLET 2012 Heater control unit J65 / Heater control unit J162

Heater control unit -J65-/Heater control unit -J162-
Location:
in centre console
 
AUDI A3 CABRIOLET 2012 Heater control unit J65 / Heater control unit J162Unlock Lifetime Access for This Car.


AUDI A3 CABRIOLET 2012 Climatronic control unit J255

Connector assignment.
AUDI A3 CABRIOLET 2012 Climatronic control unit J255Unlock Lifetime Access for This Car.
 -  Climatronic control unit -J255-
Connector:
A -  12-pin connector -T12f-
B -  20-pin connector -T20j-
C -  16-pin connector -T16e-
D -  16-pin connector -T16d-



AUDI A3 CABRIOLET 2012 Data bus diagnostic interface J533

Data bus diagnostic interface -J533-
   
Connector assignment.
AUDI A3 CABRIOLET 2012 Data bus diagnostic interface J533Unlock Lifetime Access for This Car.
A -  Data bus diagnostic interface -J533-
Connector:
B -  20-pin connector -T20d-

   


AUDI A3 CABRIOLET 2012 Fresh air blower control unit J126

Fresh air blower control unit -J126-
Location:
Under glove compartment, onfresh air blower -V2-
 
AUDI A3 CABRIOLET 2012 Fresh air blower control unit J126Unlock Lifetime Access for This Car.


AUDI A3 CABRIOLET 2012 Front passenger door control unit J387

Connector assignment.
AUDI A3 CABRIOLET 2012 Front passenger door control unit J387Unlock Lifetime Access for This Car.
A -  Front passenger door control unit -J387-
Connector:
B -  32-pin connector -T32b-
C -  16-pin connector -T16c-
D -  20-pin connector -T20g-



AUDI A3 CABRIOLET 2012 Airbag control unit J234

Airbag control unit -J234-
   
Connector assignment.
AUDI A3 CABRIOLET 2012 Airbag control unit J234Unlock Lifetime Access for This Car.
A -  Airbag control unit -J234-
Connector:
B -  75-pin connector -T75-



AUDI A3 CABRIOLET 2012 Connection for external audio source R199

Connection for external audio source -R199-
Fitting location
In glove compartment
   
AUDI A3 CABRIOLET 2012 Connection for external audio source R199Unlock Lifetime Access for This Car.
A -  Connection for external audio source -R199-
B -  12-pin connector -T12y-

   


AUDI A3 CABRIOLET 2012 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 CABRIOLET 2012 Radio R / Control unit with display for radio and navigation system J503 (RNS-low)Unlock Lifetime Access for This Car.


AUDI A3 CABRIOLET 2012 Navigation operating electronics control unit J402 (RNS-E)

Navigation operating electronics control unit -J402- (RNS-E)
Location:
in centre console
 
AUDI A3 CABRIOLET 2012 Navigation operating electronics control unit J402 (RNS-E)Unlock Lifetime Access for This Car.


AUDI A3 CABRIOLET 2012 CD changer R41

CD changer -R41-
Location:
In glove box -arrow-
 
AUDI A3 CABRIOLET 2012 CD changer R41Unlock Lifetime Access for This Car.


AUDI A3 CABRIOLET 2012 Overview of earth points in front part of vehicle



AUDI A3 CABRIOLET 2012 Voltage stabiliser J532



AUDI A3 CABRIOLET 2012 Overview of relay

Overview of relay
AUDI A3 CABRIOLET 2012 Overview of relayUnlock Lifetime Access for This Car.
1 -  Relay​​ carrier​​ on​​ electronics​​ box​​
q   in left of engine compartment.
q   Components: -J271-, -J299-, -J317-, -J363-, -J496-, -J757-
q   Relay positions
2 - 
3 -  Relay carrier on onboard power supply control unit
q   on left under dash panel
q   Components: -J9-, -J59-, -J413-, -J576-, -J681-, -J689-
q   Relay assignment from March 2008
q   Relay assignment, from May 2009

   
Relay locations on electronics box low
AUDI A3 CABRIOLET 2012 Overview of relayUnlock Lifetime Access for This Car.
1 -  Motronic current supply relay -J271-
q   Slot A1
q   for models with engine codes BZB, CAWB, CDAA, CCZA, CBZB, CAXC only
1 -  Terminal 30 voltage supply relay -J317-
q   Slot A1
q   for models with engine codes BLS, CBAB, CBAA, CAYC, CFFA, CFFB only
1 -  Current supply relay for Simos control unit -J363-
q   Slot A1
q   for models with engine code BSE only
2 -  Wiring bridges, automatic glow period control unit -J179-
q   Slot A2
q   for models with engine codes BLS, CBAB, CBAA, CAYC, CFFA, CFFB only
2 -  Engine components current supply relay -J757-
q   Slot A2
q   for models with engine codes BZB, CAWB, CDAA, CCZA, CBZB only
2 -  Secondary​ air​ pump​ relay -J299-
q   Slot A2
q   for models with engine code BSE only
2 -  Additional​ coolant​ pump​ relay -J496-
q   Slot A2
q   for models with engine code CAXC only

   


AUDI A3 CABRIOLET 2012 Relay locations under electronics box low

Relay locations under electronics box low
1 -  Relay carrier under electronics box in engine compartment, left
2 -  Automatic glow period control unit -J179-
3 -  Not assigned
  Note:
The relay carrier is only visible when the electronics box is removed.
 
AUDI A3 CABRIOLET 2012 Relay locations under electronics box lowUnlock Lifetime Access for This Car.


AUDI A3 CABRIOLET 2012 Relay positions relay carrier on onboard supply control unit, under left dash panel, from March 2008

Relay positions relay carrier on onboard supply control unit, under left dash panel, from March 2008
AUDI A3 CABRIOLET 2012 Relay positions relay carrier on onboard supply control unit, under left dash panel, from March 2008Unlock Lifetime Access for This Car.
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 -  Washer pump relay -J576-
q   Slot B 8
7 -  Not assigned
q   Slot B 7
8 -  Not assigned
q   Slot B 3
9 -  Terminal​ 30​ voltage​ supply​ relay​ 2​ -J689-
q   Slot B 4

   


AUDI A3 CABRIOLET 2012 Relay positions relay carrier on onboard supply control unit, under left dash panel, from May 2009

Relay positions relay carrier on onboard supply control unit, under left dash panel, from May 2009
AUDI A3 CABRIOLET 2012 Relay positions relay carrier on onboard supply control unit, under left dash panel, from May 2009Unlock Lifetime Access for This Car.
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 heating only
  Note:
-J39- and -J413- are​ mini-relays​ and​ can​ be​ found​ on​ a​ relay​ slot.

   


AUDI A3 CABRIOLET 2012 Relay positions under left dash panel

Relay positions under left dash panel
AUDI A3 CABRIOLET 2012 Relay positions under left dash panelUnlock Lifetime Access for This Car.
1 -  Low heat output relay -J359-
q   for models with auxiliary air heating only
2 -  Terminal 50 voltage supply relay -J682-
q   only models without stop/start system
3 -  Supplementary fuel pump relay -J832-
q   Slot 3.1
q   for models with engine codes CBAB, CBAA only
q   is dropped from May 2009
q   for models from May 2009
3 -  Starter relay 1 -J906-
q   Slot 3.1
q   applicable from May 2009
q   only models with stop/start system
3 -  Headlight washer system relay -J39-
q   Slot 3.2
q   is dropped from May 2009
q   for models from May 2009
3 -  Starter relay 2 -J907-
q   Slot 3.2
q   applicable from May 2009
q   only models with stop/start system
4 -  Fuel pump relay -J17-
q   Slot 4.1
q   for​ models​ with​ engine​ codes BLS, CBAA, CBAB, CAYC, CFFA, CFFB
q   for models with engine code BSE only, is dropped from May 2009
4 -  Electric fuel pump 2 relay -J49-
q   Slot 4.1
q   for models with engine code BSE only, applicable from May 2009
4 -  Continued coolant circulation relay -J151-
q   Slot 4.1
q   for models with engine codes BZB, CAWB, CDAA, CCZA only
4 -  Electric fuel pump 2 relay -J49-
q   Slot 4.2
q   for models with auxiliary heater and engine codes BLS, CBAA, CBAB, CAYC, CFFA, CFFB only
q   for models with engine code BSE only, is dropped from May 2009
4 -  Fuel pump relay -J17-
q   Slot 4.2
q   for models with engine code BSE only, applicable from May 2009
5 -  High heat output relay -J360-
q   for models with auxiliary air heating only
q   is dropped from May 2009
q   for models from May 2009
5 -  Automatic​ anti-dazzle​ interior​ mirror​ relay​ -J910-
q   Slot 5.1
q   applicable from May 2009
5 - 

AUDI A3 CABRIOLET 2012 Overview of fuses

Overview of fuses
AUDI A3 CABRIOLET 2012 Overview of fusesUnlock Lifetime Access for This Car.
q   Location on main fuse holder, electronics box low, from November 2008
q   Position of fuses on main fuse holder, electronics box low, from March 2008
q   Position of fuses on main fuse holder, electronics box low, from November 2008
q   Fuse assignment for E-box low
q   Position of fuses

   
Main fuse holder: Location fuse holder A -SA- on electronics box low, from March 2008
Main Supply Connection:
AUDI A3 CABRIOLET 2012 Overview of fusesUnlock Lifetime Access for This Car.
M -  Screw connection M (terminal 30)

   


AUDI A3 CABRIOLET 2012 Position of fuses electronics box low, from March 2008

Position of fuses electronics box low, from March 2008
Current Flow Diagram designation Nominal value   Function/component Terminal
Fuse 1 on 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 A -SA2- 80 A - Power steering control unit -J500- 30
Fuse 3 on fuse holder A -SA3- 50 A - Radiator​ fan​ thermal​ switch -F18-
Radiator fan control unit -J293-
Radiator fan -V7-		 30
Fuse 4 on fuse holder A -SA4- 40 A - Low heat output relay -J359- 30
Fuse 5 on fuse holder A -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 A -SA6- 80 A - High heat output relay -J360- 30
Fuse 7 on fuse holder A -SA7- - - Not assigned -

   


AUDI A3 CABRIOLET 2012 Main fuse holder: Location fuse holder A SA on electronics box low, from November 2008

Main fuse holder: Location fuse holder A -SA- on electronics box low, from November 2008
Main Supply Connection:
AUDI A3 CABRIOLET 2012 Main fuse holder: Location fuse holder A SA on electronics box low, from November 2008Unlock Lifetime Access for This Car.
M -  Screw connection M (terminal 30)

   


AUDI A3 CABRIOLET 2012 Position of fuses in electronics box low, from November 2008

Position of fuses in electronics box low, from November 2008
Current Flow Diagram designation Nominal value   Function/component Terminal
Fuse 1 on 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 A -SA2- 80 A - Power steering control unit -J500- 30
Fuse 3 on fuse holder A -SA3- 50 A - Radiator​ fan​ thermal​ switch -F18-
Radiator fan control unit -J293-
Radiator fan -V7-		 30
Fuse 4 on fuse holder A -SA4- 80 A - High heat output relay -J360- 30
Fuse 5 on fuse holder A -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 A -SA6- 40 A - Low heat output relay -J359- 30
Fuse 7 on fuse holder A -SA7- - - Not assigned -

   


AUDI A3 CABRIOLET 2012 Location fuse holder B SB on electronics box low, in left of engine compartment

Location fuse holder B -SB- on electronics box low, in left of engine compartment
Fuse colours
AUDI A3 CABRIOLET 2012 Location fuse holder B SB on electronics box low, in left of engine compartmentUnlock Lifetime Access for This Car.
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 CABRIOLET 2012 Position of fuses electronics box low

Position of fuses electronics box low
No.   Current Flow Diagram designation 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-
only models with stop/start system
applicable from May 2009		 30
F1 - Fuse 1 on fuse holder B -SB1- 40 A - Supply for the fuses:
-SC7- up to -SC10-
only models without stop/start system
applicable from May 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)		 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 May 2009		 30
F4 - Fuse 4 on fuse holder B -SB4- 20 A - ABS control unit -J104- (MK60 valves) 30
F4 - Fuse 4 on fuse holder B -SB4- 30 A - ABS control unit -J104- (MK70 valves)
is dropped from May 2008		 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 May 2009		 30
F6 - Fuse 6 on fuse holder B -SB6- 5 A - Steering column electronics control unit -J527- 30
F7 - Not assigned - -   30
F8 - Fuse 8 on fuse holder B -SB8- 15 A - Navigation operating electronics control unit -J402- (RNS-E)
Control unit with display for radio and navigation system -J503- (RNS low)
Radio -R-
is dropped from May 2009		 30
F8 - Fuse 8 on fuse holder B -SB8- 25 A - Control​ unit​ with​ display​ for​ radio​ and​ navigation -J503- (for Japan only)
is dropped from May 2009		 30
F9 - Fuse 9 on fuse holder B -SB9- 5 A - Navigation​ system​ with​ CD​ drive​ control​ unit​ -J401-
Telephone transmitter and receiver unit -R36-
Aerial​ amplifier​ for​ mobile​ telephone -R86-
18-pin connector -T18a- (VDA interface)
is dropped from May 2009		 30
F10 - Fuse 10 on fuse holder B -SB10- 5 A - Motronic current supply relay -J271- (CBZB, CAXC) 30
F10 - Fuse 10 on fuse holder B -SB10- 5 A - Engine control units -J...- (CBAB, CBAA, CAYC, CFFA, CFFB, CBZB, CAXC)
Terminal 30 voltage supply relay -J317- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB)		 30
F10 - Fuse 10 on fuse holder B -SB10- 10 A - Engine control units -J...- (BZB, CAWB, CDAA, CCZA)
Motronic current supply relay -J271- (BZB, CAWB, CDAA, CCZA)		 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 units -J...- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB) 87
      15 A Engine control units -J...- (BZB, CAWB, BSE, CDAA, CCZA, CBZB, CAXC)  
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 BZB, CAWB, CDAA, CCZA, CAXC only		 87
F14 - Fuse 14 on fuse holder B -SB14- 20 A - Ignition coil 1 with output stage -N-
Output stage -N122-
Ignition coil 2 -N128-
for models with engine codes BSE, CBZB only		 87
F14 - Fuse 14 on fuse holder B -SB14- 20 A - Fuel pressure regulating valve -N276-
Fuel metering valve -N290-
for models with engine codes CBAB, CBAA, CAYC, CFFA, CFFB only
is dropped from May 2011		 87
F14 - Fuse 14 on fuse holder B -SB14- 15 A - Fuel pressure regulating valve -N276-
Fuel metering valve -N290-
for models with engine codes CBAB, CBAA, CAYC, CFFA, CFFB only
applicable from May 2011		 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 BLS, CBAB, CBAA, CAYC, CFFA, CFFB 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 BLS, CBAB, CBAA, CAYC, CFFA, CFFB only
for models with auxiliary air heating only		 87
F15 - Fuse 15 on fuse holder B -SB15- 5 A - Supplementary fuel pump relay -J832-
for models with engine codes CBAB, CBAA, CFFA, CFFB only		 87
F15 - Fuse 15 on fuse holder B -SB15- 10 A - Lambda probe heater -Z19- (CBZB, CAXC)
Lambda​ probe​ 1​ heater​ after​ catalytic​ converter -Z29- (CBZB, CAXC)		 87
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		 30
F17 - Fuse 17 on fuse holder B -SB17- 15 A - High tone horn -H2-
Low tone horn -H7-		 30
F18 - Fuse 18 on fuse holder B -SB18- 30 A - Amplifier -R12- 30
F18 - Fuse 18 on fuse holder B -SB18- 30 A - Voltage stabiliser -J532-
Amplifier -R12-
only models with stop/start system
applicable from May 2009		 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- 10 A - Coolant​ circulation​ pump​ -V50- (CBZB, CAXC) 87
F20 - Fuse 20 on fuse holder B -SB20- 20 A - Fuel​ pressure​ regulating​ valve -N276- (BZB, CAWB, CDAA, CCZA)
is dropped from May 2011		 87
F20 - Fuse 20 on fuse holder B -SB20- 15 A - Fuel​ pressure​ regulating​ valve -N276- (BZB, CAWB, CDAA, CCZA)
applicable from May 2011		 87
F21 - Fuse 21 on fuse holder B -SB21- 10 A - Lambda​ probe​ heater -Z19- (BLS, BZB, CAWB, CBAB, CBAA, CAYC, CFFA, CFFB) 87
F21 - Fuse 21 on fuse holder B -SB21- 20 A - Vacuum​​ pump​​ relay​ -J57- (CAXC)
Vacuum​ pump​ for​ brakes -V192- (CAXC)		 87
F21 - Fuse 21 on fuse holder B -SB21- 10 A - Lambda probe heater -Z19- (BSE, CDAA, CCZA)
Lambda​ probe​ 1​ heater​ after​ catalytic​ converter -Z29- (BSE, CDAA, CCZA)
is dropped from May 2009		 87
F21 - Fuse 21 on fuse holder B -SB21- 15 A - Lambda probe heater -Z19- (BSE, CDAA, CCZA)
Lambda​ probe​ 1​ heater​ after​ catalytic​ converter -Z29- (BSE, CDAA, CCZA)
applicable from May 2009		 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 May 2009		 87
F23 - Fuse 23 on fuse holder B -SB23- 5 A - Continued​ coolant​ circulation​ relay -J151- (BZB, CAWB, CDAA, CCZA)
Secondary​ air​ pump​ relay -J299- (BSE)
Continued​ coolant​ circulation​ pump​ -V51- (BZB, CAWB, CDAA, CCZA)		 87
      10 A Charge​ pressure​ control​ solenoid​ valve​ -N75- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB)
Exhaust​ gas​ recirculation​ cooler​ change-over​ valve -N345- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB)
Air mass meter -G70- (CFFA, CFFB)		  
F23   Fuse 23 on fuse holder B -SB23- 15 A   Fuel​ pressure​ regulating​ valve -N276- (CBZB, CAXC)  
F24 - Fuse 24 on fuse holder B -SB24- 10 A - Radiator fan control unit -J293-
Additional​​ coolant​​ pump​​ relay​ -J496- (CAXC)
Engine​ component​ current​ supply​ relay​ -J757- (BZB, CAWB, CDAA, CCZA)
Charge​ pressure​ control​ solenoid​ valve​ -N75- (CAWB, BZB, CDAA, CCZA, CAXC)
Activated​ charcoal​ filter​ system​ solenoid​ valve​ 1​ -N80- (CAWB, BZB, BSE, CDAA, CCZA, CBZB, CAXC)
Variable​ intake​ manifold​ change-over​ valve -N156- (BSE)
Inlet​ camshaft​ control​ valve​ 1 -N205- (CAWB, BZB, CDAA, CCZA, CAXC)
Turbocharger​ air​ recirculation​ valve -N249- (CAWB, BZB, CDAA, CCZA, CAXC)
Intake​ manifold​ flap​ valve​ -N316- (CAWB, BZB, CDAA, CCZA, CBZB)
Oil​ pressure​ control​ valve -N428- (CDAA, CCZA)
Pump​​ for​​ exhaust​​ gas​​ recirculation​​ cooler​ -V400- (CBAB, CBAA, CAYC, CFFA, CFFB)		 87
F25 - Fuse 25 on fuse holder B -SB25- 30 A - ABS control unit -J104- (MK70 ABS Pumpe)
is dropped from May 2008		 30
F25 - Fuse 25 on fuse holder B -SB25- 40 A - ABS control unit -J104- (MK70 ABS pump and ABS valves)
applicable from May 2008		 30
F25   Fuse 25 on fuse holder B -SB25- 40 A   ABS control unit -J104- (MK60 ESP pump) 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 BLS, CBAB, CBAA, CAYC, CFFA, CFFB only		 87
F27 - Fuse 27 on fuse holder B -SB27- 40 A - Secondary air pump motor -V101- (BSE) 87
F28 - Fuse 28 on fuse holder B -SB28- 40 A - Convertible​ roof​ actuation​ control​ unit​ -J256- (hydraulic pump) 30
F29 - Fuse 29 on fuse holder B -SB29- 50 A - B300 Positive connection 4 (30), in main wiring harness
Supply for the fuses:
-SC32- up to -SC37-, -SC39-, -SC44-, -SC45-, -SC48-, -S131-		 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-, -SC29- up to -SC31-, -SC40- up to -SC42-, -SC46-, -SC47-, -SC49-		 30

   


AUDI A3 CABRIOLET 2012 Location fuse holder C SC , under left dash panel

Location fuse holder C -SC-, under left dash panel
Fuse colours
AUDI A3 CABRIOLET 2012 Location fuse holder C SC , under left dash panelUnlock Lifetime Access for This Car.
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 CABRIOLET 2012 Position of fuses, fuse holder

Position of fuses, fuse holder
No.   Current Flow Diagram designation Nominal value   Function/component Terminal
1 - Fuse 1 on fuse holder C -SC1- 10 A - Lighting switch -E1-
Headlight range control regulator -E102-
Air​ mass​ meter -G70- (BLS, BZB, CAWB, CDAA, CCZA, CAYC)
Trailer​​ detector​​ control​​ unit -J345-
Headlight range control unit -J431-
Heater​ element​ for​ crankcase​ breather​ -N79- (BLS, CBAB, CBAA, BSE, CAYC, CFFA, CFFB)
16-pin connector -T16- (diagnostic connector)
Left headlight range control motor -V48-
Right headlight range control motor -V49-		 15
1 - Fuse 1 on fuse holder C -SC1- 10 A - Air​ mass​ meter​ -G70- (CBAB, CBAA) 15
1 - Fuse 1 on fuse holder C -SC1- 10 A - Stop/start​ system​ button​ -E693-
only models with stop/start system
no longer fitted, phased from model year 2010		 15
2 - Fuse 2 on fuse holder C -SC2- 10 A - Engine control units -J...-
Tiptronic switch -F189-
Fuel pump relay -J17- (BSE)
ABS control unit -J104-
Current​ supply​ relay​ for​ Simos​ control​ unit -J363- (BSE)
Power steering control unit -J500-
Data bus diagnostic interface -J533-
Fuel pump control unit -J538- (BZB, CAWB, CDAA, CCZA, CBZB, CAXC)
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 May 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-
applicable from May 2009		 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-
Heated rear right seat switch with regulator -E129-
Tyre​ pressure​ monitor​ button -E226-
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-
Navigation​ system​ with​ CD​ drive​ control​ unit​ -J401-
Parking aid control unit -J446-
Garage door operation control unit -J530-
Driver​​ seat​​ heating​​ control​​ unit -J726-
Front​ passenger​ seat​ heating​ control​ unit -J727-
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-
only models without stop/start system
applicable from May 2009		 15
4 - Fuse 4 on fuse holder C -SC4- 5 A - Voltage stabiliser -J532-
only models with stop/start system
applicable from May 2009		 15
4 - Fuse 4 on fuse holder C -SC4- 5 A - Stop/start​ system​ button​ -E693-
only models with stop/start system
Gradual introduction during 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 May 2009		 30
9 - Fuse 9 on fuse holder C -SC9- 15 A - Navigation operating electronics control unit -J402- (RNS-E)
Control unit with display for radio and navigation system -J503- (RNS low)
Radio -R-
8-pin connector -T8- (preparation for radio supply)
applicable from May 2009		 30
10 - Fuse 10 on fuse holder C -SC10- 7.5 A - Telephone transmitter and receiver unit -R36-
Connection for external audio sources -R199-
18-pin connector -T18a- (VDA interface)
applicable from May 2009		 30
11 - Fuse 11 on fuse holder C -SC11- 10 A - Automatic​ anti-dazzle​ interior​ mirror​ relay​ -J910-
Automatic anti-dazzle interior mirror -Y7-
only models with stop/start system
applicable from May 2009		 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 - Convenience system central control unit -J393-
is dropped from May 2009		 30
14 - Fuse 14 on fuse holder C -SC14- 10 A - ABS control unit -J104- (MK60 with hydraulic brake servo)
Selector lever sensors control unit -J587-		 30
15 - Fuse 15 on fuse holder C -SC15- 10 A - Front interior light -W1- 30
16 - Fuse 16 on fuse holder C -SC16- 10 A - Rain and light sensor -G397-
Heater control unit -J162-
Climatronic control unit -J255-
Air​ conditioning​ system​ control​ unit​ -J301-
Remote control receiver for auxiliary heater -R64-
16-pin connector -T16- (diagnostic connector)		 30
16 - Fuse 16 on fuse holder C -SC16- 10 A - Lighting switch -E1-
applicable from May 2009		 30
17 - Fuse 17 on fuse holder C -SC17- 5 A - Interior monitoring sensor -G273-
Alarm horn -H12-		 30
18 - Fuse 18 on fuse holder C -SC18- 5 A - Onboard supply control unit -J519- (diagnostic cable)
Voltage stabiliser -J532- (diagnosis wiring)
Engine control unit -J623- (diagnostic cable)
only models with stop/start system
applicable from May 2009		 50
19 - Not assigned - -   -
20 - Not assigned - -   -
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 - Socket -U- (in luggage compartment) 30
27 - Fuse 27 on fuse holder C -SC27- 15 A - Fuel system pressurisation pump -G6-
Fuel pump relay -J17- (BLS, CBAB, CBAA, BSE, CAYC, CFFA, CFFB)
Electric​ fuel​ pump​ 2​ relay -J49- (BSE)
Fuel pump control unit -J538- (BZB, CAWB, CDAA, CCZA, CBZB, CAXC)		 30
27 - Fuse 27 on fuse holder C -SC27- 15 A - Electric fuel pump 2 relay -J49- (BLS, CBAB, CBAA, CAYC, CFFA, CFFB)
for models with auxiliary heating only		 30
27 - Fuse 27 on fuse holder C -SC27- 15 A - Relay​ for​ supplementary​ fuel​ pump -J832- (CBAB, CBAA, CFFA, CFFB)
Supplementary fuel pump -V393- (CBAB, CBAA, CFFA, CFFB)		 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 - Not assigned - -   -
31 - Fuse 31 on fuse holder C -SC31- 20 - Vacuum pump relay -J57- (BSE)
Vacuum pump for brakes -V192- (BSE)		 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- 25 A - Convertible roof actuation control unit -J256- 30
34 - Fuse 34 on fuse holder C -SC34- 20 A - Heated​ rear​ left​ seat​ control​ unit -J215-
Heated rear right seat control unit -J216-		 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- (front seat heating)
Driver​​ seat​​ heating​​ control​​ unit -J726-
Front​ passenger​ seat​ heating​ control​ unit -J727-		 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
40 - Fuse 40 on fuse holder C -SC40- 40 A - Starter -B- 15
41 - Not assigned - -   -
42 - Fuse 41 on fuse holder C -SC42- 15 A - Washer pump -V5-
is dropped from May 2009		 15
43 - Fuse 43 on fuse holder C -SC43- 20 A - Convenience system central control unit -J393-
is dropped from May 2009		 30
43 - Fuse 43 on fuse holder C -SC43- 20 A - Onboard supply control unit -J519-
applicable from May 2009		 30
44 - Fuse 44 on fuse holder C -SC44- 20 A - Trailer​​ detector​​ control​​ unit -J345- 30
45 - Fuse 45 on fuse holder C -SC45- 20 A - Trailer​​ detector​​ control​​ unit -J345- 30
46 - Fuse 46 on fuse holder C -SC46- 10 A - Trailer​ socket​ -U10- 15
47 - Fuse 47 on fuse holder C -SC47- 5 A - 18-pin connector -T18a- (VDA interface) 15
47 - Fuse 47 on fuse holder C -SC47- 5 A - Aerial​ amplifier​ for​ mobile​ telephone -R86-
applicable from May 2009		 15
48 - Not assigned - -   -
49   Not assigned - -   -

   


AUDI A3 CABRIOLET 2012

Overview of earth points in front part of vehicle
   
AUDI A3 CABRIOLET 2012 Overview of earth points in front part of vehicleUnlock Lifetime Access for This Car.

   
Overview of earth points in interior of vehicle
AUDI A3 CABRIOLET 2012 Overview of earth points in front part of vehicleUnlock Lifetime Access for This Car.
4 -  Earth point (audio), under centre console, front -610-
q   Location

   
Overview of earth points in rear part of vehicle
AUDI A3 CABRIOLET 2012 Overview of earth points in front part of vehicleUnlock Lifetime Access for This Car.

   
Earth point, in engine compartment
   12 Earth point, on left in engine compartment, near the battery -arrow-
 
AUDI A3 CABRIOLET 2012 Overview of earth points in front part of vehicleUnlock Lifetime Access for This Car.
Torque: 15 Nm
   655 Earth point, on left headlight, on longitudinal member -arrow C-
Torque: 10 Nm
 
AUDI A3 CABRIOLET 2012 Overview of earth points in front part of vehicleUnlock Lifetime Access for This Car.
Earth points, in interior
   43 Earth point, lower part of right A-pillar -arrow A-
Torque: 10 Nm
Torque: 10 Nm
   639 Earth point, left A-pillar -arrow B-
Torque: 10 Nm
 
AUDI A3 CABRIOLET 2012 Overview of earth points in front part of vehicleUnlock Lifetime Access for This Car.
Earth point, in luggage compartment
   729 Earth point, on rear left wheel housing -arrow-
 
AUDI A3 CABRIOLET 2012 Overview of earth points in front part of vehicleUnlock Lifetime Access for This Car.
Torque: 10 Nm
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