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AUDI A8 2009 – Infotainment data bus (Most-Ring), for models with MMI generation 3 only (MOST) . Wiring diagrams, Pin Connector, Location

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Wiring Diagram AUDI A8 2009 - Infotainment data bus (Most-Ring)



Wiring Diagram AUDI A8 2009 - Infotainment data bus (Most-Ring)
J525Digital sound package control unit
J533Data bus diagnostic interface
J794Control unit for information electronics 1
RRadio
R7DVD player
R41CD changer
R78TV tuner
#equipment that is not present is bridged


AUDI A8 2009 Control units overview

Control units overview
q   Connector assigment
2 - 
Energy management control unit -J644-, convenience system central control unit -J393-
q   on right in luggage compartment
q   Location
q   Connector assigment -J393-
q   Connector assigment -J644-

   
q   Connector assigment -J345-
q   Connector assigment -J505-
q   Connector assigment -J540-
7 - 

   
7 - 
7 - 
q   Connector assigment
7 -  Radio -R- and speech input control unit -J507-
q   on left in luggage compartment
q   Location
7 -  Digital radio -R147-
q   on left in luggage compartment
q   Location
q   Connector assigment
q   Connector assigment
10 - 

   
Anti-theft and tilt system control unit -J529-
   
Location:
Under rear seat bench, right
Rear right door control unit -J389- and rear left door control unit -J388-
 
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
Location -J389-:
In rear right door -arrow-
Location -J388-:
In rear left door -arrow-
 
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
Connector assigment:    
Connector front door:
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
A -  32-pin connector (connector A), white
B -  16-pin connector (connector B), brown
C -  12-pin connector (connector C), black
D -  10-pin connector, black (connector D), black
Connector rear door:
A -  Vacant
B -  16-pin connector (connector A), brown
C -  12-pin connector (connector B), black
D -  10-pin connector (connector C), black

   
Power latching control unit for rear right door -J763- and power latching control unit for rear left door -J762-
Connector assigment:
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
 -  6-pin connector, black

   
Rear seat adjustment with memory control unit -J522-, heated rear left seat control unit -J215- and heated rear right seat control unit -J216-    
Energy management control unit -J644- and convenience system central control unit -J393-
 
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
Connector assigment of energy management control unit -J644-:
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
A -  14-pin connector, black

   
Connector assigment of convenience system central control unit -J393-:
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
A -  15-pin connector -connector A-, black
B -  10-pin connector -connector C-, black
C -  32-pin connector -connector B-, grey

   
Connector assigment of trailer detector control unit -J345-:
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
A -  16-pin connector -T16f-, black
B -  12-pin connector -T12m-, red

   
Connector assigment of heated windscreen control unit -J505-:
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
A -  4-pin connector, black

   
Connector assigment of electric park and handbrake control unit -J540-:
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
A -  30-pin connector, black

   

AUDI A8 2009 Aerial selection control unit -J515-

Location:
Behind the roof end trim, rear left -Item 3-
Connector assigment:
AUDI A8 2009 Aerial selection control unit -J515-Get access to all wiring diagrams of the car
 -  Parking aid control unit -J446-
Pin connector:
A -  16-pin connector, brown
B -  12-pin connector, brown
C -  12-pin connector, black

   
Radio controlled clock receiver -J489-    
Location:
In rear bumper -Item 2-
Location:
Under rear seat bench, left
 
AUDI A8 2009 Aerial selection control unit -J515-Get access to all wiring diagrams of the car
Connector assigment:
AUDI A8 2009 Aerial selection control unit -J515-Get access to all wiring diagrams of the car
A -  32-pin connector, black

   


AUDI A8 2009 Control units overview

Control units overview
q   Connector assignment
4 - 
q   Connector assignment
Roof electronics control unit -J528-
q   In front roof module
q   Location

   
q   Connector assignment
q   Connector assignment
q   Connector assignment
q   Connector assignment
10 - 
q   Connector assignment
q   Connector assignment

   
q   Connector assignment, 20-pin connector -T20e-
17 - 
q   Connector assignment
q   Connector assignment
 - 

   
Front information display and operating unit control unit -J523-
   
Display unit for front information display and operating unit control unit -J685-
 
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
Steering column electronics control unit -J527-
   
Location:
Near steering column, behind steering wheel
Driver side door control unit -J386-, front passenger door control unit -J387-
 
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
Location -J386-:
In driver door -arrow-
Location -J387-:
In front passenger door -arrow-
 
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
Connector assignment:    
Pin connector front door:
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
A -  32-pin connector (connector A), white
B -  16-pin connector (connector B), brown
C -  12-pin connector (connector C), black
D -  10-pin connector, black (connector D), black
Pin connector rear door:
A -  Vacant
B -  16-pin connector (connector A), brown
C -  12-pin connector (connector B), black
D -  10-pin connector (connector C), black

   
Power latching control unit for driver door -J760-, power latching control unit for front passenger door -J761-
AUDI A8 2009 Control units overviewGet access to all wiring diagrams of the car
6-pin connector, black

   

AUDI A8 2009 Onboard supply control unit 2 -J520-

Location:
Under carpet of the front passenger seat -arrow-
 
AUDI A8 2009 Onboard supply control unit 2 -J520-Get access to all wiring diagrams of the car
Connector assignment:
AUDI A8 2009 Onboard supply control unit 2 -J520-Get access to all wiring diagrams of the car
A -  40-pin connector, on control unit
B -  40-pin connector, black, on wiring harness

   
Roof electronics control unit -J528-    
Airbag control unit -J234-
   
Connector assignment:
AUDI A8 2009 Onboard supply control unit 2 -J520-Get access to all wiring diagrams of the car
 -  Airbag control unit -J234-
Connector:
A -  84-pin connector, yellow
q   up to model year 2004
 -  75-pin connector, yellow
q   up to model year 2005

   
Seat and steering column adjustment control unit with memory -J136-    
Connector assignment:
AUDI A8 2009 Onboard supply control unit 2 -J520-Get access to all wiring diagrams of the car
A -  12-pin connector -connector ST5-, black
B -  12-pin connector -connector ST4-, black
C -  32-pin connector -connector ST6-, blue
D -  32-pin connector -connector ST7-, green

   
Entry and start authorisation control unit -J518-    
Location left-hand drive:
Under carpet of the driver seat -arrow-
Location right-hand drive:
Under carpet of the front passenger seat -arrow-.
 
AUDI A8 2009 Onboard supply control unit 2 -J520-Get access to all wiring diagrams of the car
Connector assignment:
AUDI A8 2009 Onboard supply control unit 2 -J520-Get access to all wiring diagrams of the car
A -  81-pin connector -connector A-, black
B -  6-pin connector -connector B-, black

   
Onboard power supply control unit -J519-    
Connector assignment:
AUDI A8 2009 Onboard supply control unit 2 -J520-Get access to all wiring diagrams of the car
A -  32-pin connector, -T32a- (connector C), grey
B -  23-pin connector -T23- (connector B), black
C -  10-pin connector, -T10p- (connector A), black

   
Headlight range control, control unit -J431-    
Connector assignment:
AUDI A8 2009 Onboard supply control unit 2 -J520-Get access to all wiring diagrams of the car
A -  26-pin connector, yellow

   
ABS control unit -J104-
Connector assignment:
AUDI A8 2009 Onboard supply control unit 2 -J520-Get access to all wiring diagrams of the car
A -  42-pin connector, black

   
Control unit in dash panel insert -J285-
Connector assignment:
AUDI A8 2009 Onboard supply control unit 2 -J520-Get access to all wiring diagrams of the car
A -  32 pin connector -T32-, blue

   
Wiper motor control unit -J400-    
Automatic gearbox control unit -J217-, gearbox 09E/09L
Connector assignment:
AUDI A8 2009 Onboard supply control unit 2 -J520-Get access to all wiring diagrams of the car
A -  16-pin connector -T16c-, black

   
Automatic gearbox control unit -J217-, gearbox 01J/01T
Connector assignment:
AUDI A8 2009 Onboard supply control unit 2 -J520-Get access to all wiring diagrams of the car
A -  20-pin connector -T20e-, black

   
Data bus diagnostic interface -J533-    
Connector assignment:
AUDI A8 2009 Onboard supply control unit 2 -J520-Get access to all wiring diagrams of the car
A -  81-pin connector (connector A), black
B -  40-pin connector (connector B), black

   

AUDI A8 2009 Engine control unit -J623-, engine control unit 2 -J624-

Location:
Engine control unit -1- with electronics box -2- in plenum chamber
Engine control unit2 -J624-, installed under or next to engine control unit -J623-, depending on equipment
Connector assignment:
AUDI A8 2009 Engine control unit -J623-, engine control unit 2 -J624-Get access to all wiring diagrams of the car
A -  12-pin connector, black

   
Garage door operation control unit -J530-
1 -  4-pin connector, black -T4bi-
2 -  Garage door operation control unit -J530-
3 -  Screw

   
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