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AUDI A4 2005 – CAN bus wiring . Wiring diagrams, Pin Connector, Location

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Wiring Diagram AUDI A4 2005 - CAN bus wiring (drive train)



Wiring Diagram AUDI A4 2005 - CAN bus wiring (drive train)
J...Engine control units
J104ABS control unit with EDL
J217Automatic gearbox control unit
J234Airbag control unit
T1717-pin connector, black, coupling station on left A-pillar
T17d17-pin connector, red, coupling station on electronics box, plenum chamber
   A121 Connection (high bus), in dash panel wiring harness
   A122 Connection (low bus), in dash panel wiring harness
   D159 Connection (high bus), in engine compartment wiring harness
   D160 Connection (low bus), in engine compartment wiring harness
*See applicable engine Current Flow Diagram
**See applicable Current Flow Diagram: automatic gearbox

Wiring Diagram AUDI A4 2005 - CAN bus wiring - control unit with display in dash panel insert



Wiring Diagram AUDI A4 2005 - CAN bus wiring - control unit with display in dash panel insert
J285Control unit with display in dash panel insert
J527Steering column electronics control unit
T16a16-pin connector, black, on steering column electronics control unit
T3232-pin connector, blue, on dash panel insert
T32a32-pin connector, green, on dash panel insert
   A121 Connection (high bus), in dash panel wiring harness
   A122 Connection (low bus), in dash panel wiring harness
   A146 Connection (convenience CAN bus, high), in dash panel wiring harness
   A147 Connection (convenience CAN bus, low), in dash panel wiring harness
   A178 Connection (infotainment CAN bus, high), in dash panel wiring harness
   A179 Connection (infotainment CAN bus, low), in dash panel wiring harness

Wiring Diagram AUDI A4 2005 - CAN bus wiring (convenience)



Wiring Diagram AUDI A4 2005 - CAN bus wiring (convenience)
J345Trailer detector control unit
J446Parking aid control unit
J519Onboard supply control unit
T16f16-pin connector, brown, on parking aid control unit
T32b32-pin connector, grey, on onboard supply control unit
   A146 Connection (convenience CAN bus, high), in dash panel wiring harness
   A147 Connection (convenience CAN bus, low), in dash panel wiring harness
   A178 Connection (infotainment CAN bus, high), in dash panel wiring harness
   A179 Connection (infotainment CAN bus, low), in dash panel wiring harness

Wiring Diagram AUDI A4 2005 - CAN bus wiring (convenience)



Wiring Diagram AUDI A4 2005 - CAN bus wiring (convenience)
E87operating and display unit for air conditioning system/Climatronic
J...Door control units
J136Seat adjustment with memory control unit
J364Auxiliary heater control unit
J393Convenience system central control unit
T10k10-pin connector, white, coupling station left of A-pillar
T10o10-pin connector, red, coupling station seat wiring, driver seat
T32e32-pin connector, on seat adjustment with memory control unit
   A146 Connection (convenience CAN bus, high), in dash panel wiring harness
   A147 Connection (convenience CAN bus, low), in dash panel wiring harness
   A178 Connection (infotainment CAN bus, high), in dash panel wiring harness
   A179 Connection (infotainment CAN bus, low), in dash panel wiring harness

Wiring Diagram AUDI A4 2005 - CAN bus wiring (navigation system and infotainment)



Wiring Diagram AUDI A4 2005 - CAN bus wiring (navigation system and infotainment)
J402Navigation operating electronics control unit
J415Navigation system tuner for TV
R94Navigation system interface
R99Chip card reader unit
T12d12-pin connector, brown, near glove compartment
T2626-pin connector, black, on navigation operating electronics control unit
   A148 Connection (navigation CAN bus, high), in dash panel wiring harness
   A149 Connection (navigation CAN bus, low), in dash panel wiring harness
   A178 Connection (infotainment CAN bus, high), in dash panel wiring harness
   A179 Connection (infotainment CAN bus, low), in dash panel wiring harness
*for models with radio navigation system only
**for models with radio/navigation system and TV tuner
***option navigation system

Wiring Diagram AUDI A4 2005 - Navigation system with CD drive control unit



Wiring Diagram AUDI A4 2005 - Navigation system with CD drive control unit
J401Navigation system with CD drive control unit
J412Mobile telephone operating electronics control unit
J507Language input control unit
J526Telephone and telematics control unit
T16j16-pin connector, black, on navigation operating electronics control unit, connector D
T20e20-pin connector, black, on navigation system with CD drive control unit
T4242-pin connector, black, on telephone / telematics control unit
T4646-pin connector, on telephone / telematics control unit
   A178 Connection (infotainment CAN bus, high), in dash panel wiring harness
   A179 Connection (infotainment CAN bus, low), in dash panel wiring harness
*for models with telephone / telematics only (USA)
**for models with navigation system NS-LOW only
***for models with radio navigation system RNS-E only

Wiring Diagram AUDI A4 2005 - CAN bus wiring (infotainment)



Wiring Diagram AUDI A4 2005 - CAN bus wiring (infotainment)
J402Navigation operating electronics control unit
RRadio
T20d20-pin connector, black, radio connector I
   A178 Connection (infotainment CAN bus, high), in dash panel wiring harness
   A179 Connection (infotainment CAN bus, low), in dash panel wiring harness
*only models with radio navigation system (Japan)


AUDI A4 2005 Control units overview

Control units overview
   
AUDI A4 2005 Control units overview
1 -  Heated windscreen control unit -J505-
q   Location → page 804/4
2 -  CD changer -R41-
q   Location → page 804/13
3 -  Fresh air blower control unit -J126-
q   Location ⇒ page → 804/7
4 -  Headlight range control, control unit -J431-
q   Location → page 804/7
5 -  Radio -R-
q   not for navigation system
q   Location → page 804/11
5 -  Navigation operating electronics control unit -J402-
q   for navigation system RNS-D only
q   Location → page 804/11
5 -  Control unit with display for radio and navigation system -J503-
q   for navigation system RNS-Low only
q   Location → page 804/13

   

Audi A4 Fitting Locations No.  804 / 2
   
AUDI A4 2005 Control units overview
5 -  Navigation system with CD drive control unit -J401-
q   Location for navigation system NS-Low → page 804/12
q   Location for navigation system RNS-E → page 804/12
6 -  Telephone and telematics control unit, telematics -J526-
q   Location → page 804/14
6 -  Language input control unit -J507-
q   Location → page 804/14
7 -  Steering column electronics control unit -J527-
q   Location → page 804/8
8 -  Front passenger side door control unit -J387-
q   Location → page 804/16
9 -  Display control unit in dash panel insert -J285-
q   Location → page 804/8
10 -  Airbag control unit -J234-
q   Location → page 804/9
11 -  Driver door control unit -J386-
q   Location → page 804/16

   

Audi A4 Fitting Locations No.  804 / 3
   
AUDI A4 2005 Control units overview
12 -  Convenience system central control unit -J393-
q   Location → page 804/15
13 -  Onboard power supply control unit -J519-
q   Location → page 804/9
14 -  Motronic control unit -J220-
14 -  Diesel direct injection system control unit -J248-
14 -  Simos control unit -J361-
q   Location → page 804/4
15 -  Automatic gearbox control unit -J217-
q   not for models with multitronic®
q   Location → page 804/5
16 -  ABS control unit -J104-
q   Location → page 804/6
17 -  Automatic gearbox control unit -J217-
q   for models with multitronic® only
q   Location → page 804/5
18 -  Radiator fan control unit -J293-
q   Location → page 804/6

   

Audi A4 Fitting Locations No.  804 / 4
Heated windscreen control unit -J505-
   
Location:
On right in plenum chamber, next to battery


AUDI A4 2005 Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-

Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-
 
AUDI A4 2005 Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-
Location:
On electronics box in plenum chamber
 
AUDI A4 2005 Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-

Audi A4 Fitting Locations No.  804 / 5
   


AUDI A4 2005 Automatic gearbox control unit -J217-

Automatic gearbox control unit -J217-
not for models with multitronic®
Location:
 
AUDI A4 2005 Automatic gearbox control unit -J217-
In electronics box in plenum chamber
for models with multitronic® only
Location:
In gearbox
 
AUDI A4 2005 Automatic gearbox control unit -J217-

Audi A4 Fitting Locations No.  804 / 6


AUDI A4 2005 ABS control unit -J104-

ABS control unit -J104-
   
Location:
In engine compartment, on front left hydraulic unit


AUDI A4 2005 Radiator fan control unit -J293-

Radiator fan control unit -J293-
 
AUDI A4 2005 Radiator fan control unit -J293-
Location:
on radiator fan
 
AUDI A4 2005 Radiator fan control unit -J293-

Audi A4 Fitting Locations No.  804 / 7


AUDI A4 2005 Fresh air blower control unit -J126-

Fresh air blower control unit -J126-
   
Location:
Behind the glove box, in fresh air blower


AUDI A4 2005 Headlight range control, control unit -J431-

Headlight range control, control unit -J431-
 
AUDI A4 2005 Headlight range control, control unit -J431-
Location:
Behind the glove box
 
AUDI A4 2005 Headlight range control, control unit -J431-

Audi A4 Fitting Locations No.  804 / 8


AUDI A4 2005 Steering column electronics control unit -J527-

Steering column electronics control unit -J527-
   
Location:
On steering column


AUDI A4 2005 Display control unit in dash panel insert -J285-

Display control unit in dash panel insert -J285-
 
AUDI A4 2005 Display control unit in dash panel insert -J285-
Location:
In the dash panel behind the display unit
 
AUDI A4 2005 Display control unit in dash panel insert -J285-

Audi A4 Fitting Locations No.  804 / 9


AUDI A4 2005 Airbag control unit -J234-

Airbag control unit -J234-
   
Location:
On centre tunnel, under handbrake lever


AUDI A4 2005 Onboard power supply control unit -J519-

Onboard power supply control unit -J519-
 
AUDI A4 2005 Onboard power supply control unit -J519-
Location:
Behind driver's storage compartment
 
AUDI A4 2005 Onboard power supply control unit -J519-

Audi A4 Fitting Locations No.  804 / 10


AUDI A4 2005 Trailer detector control unit -J345-

Trailer detector control unit -J345-
   
Location:
In left luggage compartment, behind side trim


AUDI A4 2005 Parking aid control unit -J446-

Parking aid control unit -J446-
 
AUDI A4 2005 Parking aid control unit -J446-
Location:
In left luggage compartment, behind side trim, on apron
 
AUDI A4 2005 Parking aid control unit -J446-

Audi A4 Fitting Locations No.  804 / 11
   


AUDI A4 2005 Navigation operating electronics control unit -J402-

Navigation operating electronics control unit -J402-
for navigation system RNS-D only
Location:
in centre console
 
AUDI A4 2005 Navigation operating electronics control unit -J402-


AUDI A4 2005 Radio -R-

Radio -R-
not for navigation system
Location:
in centre console
 
AUDI A4 2005 Radio -R-

Audi A4 Fitting Locations No.  804 / 12
   


AUDI A4 2005 Navigation system with CD drive control unit -J401-

Navigation system with CD drive control unit -J401-
For navigation system NS-Low only
Location:
 
AUDI A4 2005 Navigation system with CD drive control unit -J401-
in centre console
For navigation system RNS-E only
Location:
in centre console
 
AUDI A4 2005 Navigation system with CD drive control unit -J401-

Audi A4 Fitting Locations No.  804 / 13
   


AUDI A4 2005 Control unit with display for radio and navigation system -J503-

Control unit with display for radio and navigation system -J503-
for navigation system RNS-Low only
Location:
in centre console


AUDI A4 2005 CD changer -R41-

CD changer -R41-
 
AUDI A4 2005 CD changer -R41-
Location:
In glove compartment
 
AUDI A4 2005 CD changer -R41-

Audi A4 Fitting Locations No.  804 / 14
   


AUDI A4 2005 Telephone and telematics control unit, telematics -J526-

Telephone and telematics control unit, telematics -J526-
For models with telematics only
Location:
in electronics box under front passenger seat
 
AUDI A4 2005 Telephone and telematics control unit, telematics -J526-


AUDI A4 2005 Language input control unit -J507-

Language input control unit -J507-
For models with telematics only
Location:
in electronics box under front passenger seat
 
AUDI A4 2005 Language input control unit -J507-

Audi A4 Fitting Locations No.  804 / 15


AUDI A4 2005 Convenience system central control unit -J393-

Convenience system central control unit -J393-
   
Location:
on sill, front left
 
AUDI A4 2005 Convenience system central control unit -J393-

Audi A4 Fitting Locations No.  804 / 16


AUDI A4 2005 Driver door control unit -J386-

Driver door control unit -J386-
   
Location:
In window regulator motor integrated


AUDI A4 2005 Front passenger side door control unit -J387-

Front passenger side door control unit -J387-
 
AUDI A4 2005 Front passenger side door control unit -J387-
Location:
In window regulator motor integrated
 
AUDI A4 2005 Front passenger side door control unit -J387-


AUDI A4 2005 Control units overview

Control units overview
   
AUDI A4 2005 Control units overview
1 -  Rear right door control unit -J389-
q   Location → page 805/3
2 -  Trailer detector control unit -J345-
q   Location → page 805/2
3 -  Parking aid control unit -J446-
q   Location → page 805/2
4 -  Rear left door control unit -J388-
q   Location ⇒ page → 805/3

   

Audi A4 Fitting Locations No.  805 / 2
Trailer detector control unit -J345-
   
Location:
In left luggage compartment, behind side trim


AUDI A4 2005 Parking aid control unit -J446-

Parking aid control unit -J446-
 
AUDI A4 2005 Parking aid control unit -J446-
Location:
In left luggage compartment, behind side trim, on apron
 
AUDI A4 2005 Parking aid control unit -J446-

Audi A4 Fitting Locations No.  805 / 3


AUDI A4 2005 Rear left door control unit -J388-

Rear left door control unit -J388-
   
Location:
In window regulator motor integrated


AUDI A4 2005 Rear right door control unit -J389-

Rear right door control unit -J389-
 
AUDI A4 2005 Rear right door control unit -J389-
Location:
In window regulator motor integrated
 
AUDI A4 2005 Rear right door control unit -J389-
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