AUDI A8 2010 – Infotainment data bus (Most-Ring), for models with MMI generation 3 only (MOST) . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A8 2010 - Infotainment data bus (Most-Ring)

J525	Digital sound package control unit
J533	Data bus diagnostic interface
J794	Control unit for information electronics 1
R	Radio
R7	DVD player
R41	CD changer
R78	TV tuner
#	equipment that is not present is bridged

AUDI A8 2010 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-

Audi A8	Fitting Locations	No.  805 / 2

q	Connector assigment -J345-

q	Connector assigment -J505-

q	Connector assigment -J540-

7 -

Audi A8	Fitting Locations	No.  805 / 3

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-

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Location -J389-: In rear right door -arrow- Location -J388-: In rear left door -arrow-

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Connector assigment:    

Connector front door:

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:

-	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-

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Location: on right in luggage compartment 2 -  Energy management control unit -J644- 6 -  Convenience system central control unit -J393-

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Connector assigment of energy management control unit -J644-:

A -	14-pin connector, black

Connector assigment of convenience system central control unit -J393-:

A -	15-pin connector -connector A-, black

B -	10-pin connector -connector C-, black

C -	32-pin connector -connector B-, grey

Heated windscreen control unit -J505-, electric park and handbrake control unit -J540- and trailer detector control unit -J345-    

Location: Under the battery 1 -  Heated windscreen control unit -J505- 2 -  Electric park and handbrake control unit -J540- 3 -  Trailer detector control unit -J345-

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Connector assigment of trailer detector control unit -J345-:

A -	16-pin connector -T16f-, black

B -	12-pin connector -T12m-, red

Connector assigment of heated windscreen control unit -J505-:

A -	4-pin connector, black

Connector assigment of electric park and handbrake control unit -J540-:

A -	30-pin connector, black

AUDI A8 2010 Aerial selection control unit -J515-

Location:

Behind the roof end trim, rear left -Item 3-

Digital sound package control unit -J525-, TV tuner -R78-, navigation system with CD drive control unit -J401-, parking aid control unit -J446-, radio -R-, speech input control unit -J507- and digital radio -R147-

 

Location: In left luggage compartment 1 -  Digital sound package control unit -J525- 2 -  TV tuner -R78- 3 -  Navigation system with CD drive control unit -J401- 4 -  Parking aid control unit -J446- 5 -  Radio -R- and speech input control unit -J507- 6 -  Digital radio -R147-

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Connector assigment:

-	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- Tyre pressure monitor control unit -J502-

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Location: Under rear seat bench, left

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Connector assigment:

A -	32-pin connector, black

AUDI A8 2010 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

Audi A8	Fitting Locations	No.  804 / 2

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

10 -

q	Connector assignment

q	Connector assignment

Audi A8	Fitting Locations	No.  804 / 3

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-

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Location: In centre dash panel -Item 1-

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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-

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Location -J386-: In driver door -arrow- Location -J387-: In front passenger door -arrow-

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Connector assignment:    

Pin connector front door:

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-

6-pin connector, black

AUDI A8 2010 Onboard supply control unit 2 -J520-

Location:

Under carpet of the front passenger seat -arrow-

  Connector assignment:

A -	40-pin connector, on control unit

B -	40-pin connector, black, on wiring harness

Roof electronics control unit -J528-    

Location: The roof electronics control unit -J528- in front roof module contains: 1 -  Interior monitor send and receive module 1 -G303- 2 -  Garage door operating unit -E284- 3 -  Telematics operating unit -E264- 1, 4, 5 -  Microphone unit in front roof module -R164- 4 -  Interior monitor send and receive module 2 -G305-

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Airbag control unit -J234-    

Location: On the front centre tunnel -Item 1-

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Connector assignment:

-	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-    

Location: In lower driver seat -Item 2-, coupling station driver seat -Item 1-

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Connector assignment:

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-.

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Connector assignment:

A -	81-pin connector -connector A-, black

B -	6-pin connector -connector B-, black

Onboard power supply control unit -J519-    

Location: Behind the shelf on the driver's side, on relay and fuse holder behind the dash panel, left -arrow-

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Connector assignment:

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-    

Location: Behind dash panel insert

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Connector assignment:

A -	26-pin connector, yellow

ABS control unit -J104-

Connector assignment:

A -	42-pin connector, black

Control unit in dash panel insert -J285-

Connector assignment:

A -	32 pin connector -T32-, blue

Wiper motor control unit -J400-    

Location: In plenum chamber on windscreen wiper motor -arrow-

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Automatic gearbox control unit -J217-, gearbox 09E/09L

Connector assignment:

A -	16-pin connector -T16c-, black

Automatic gearbox control unit -J217-, gearbox 01J/01T

Connector assignment:

A -	20-pin connector -T20e-, black

Data bus diagnostic interface -J533-    

Adaptive suspension control unit -J197-

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Location: Behind the glove box -Item 3- 1 -  Front information display and operating unit control unit -J523- 2 -  Data bus diagnostic interface -J533- 3 -  Adaptive suspension control unit -J197-

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Connector assignment:

A -	81-pin connector (connector A), black

B -	40-pin connector (connector B), black

AUDI A8 2010 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

Adaptive cruise control unit -J428-

 

Location: Behind the front bumper, lower

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Connector assignment:

A -	12-pin connector, black

Garage door operation control unit -J530-

Location:

Behind the front bumper, left

   

1 -	4-pin connector, black -T4bi-

2 -	Garage door operation control unit -J530-

3 -

Screw