AUDI A8 2012 – Gas discharge headlights (bi-xenon) with automatic headlight range control, cornering light, LED daytime running lights . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A8 2012 - Onboard supply control unit

J519	Onboard supply control unit
ST2	Fuse carrier 2
ST3	Fuse carrier 3
SC3	Fuse 3 on fuse holder C
SC9	Fuse 9 on fuse holder C
SC10	Fuse 10 on fuse holder C
SC15	Fuse 15 on fuse holder C
T17a	17-pin connector
T17b	17-pin connector
T17c	17-pin connector
376	Earth connection 11, in main wiring harness
*	see applicable current flow diagram for fuse assignment

Wiring Diagram AUDI A8 2012 - Light switch - Switch and instrument illumination regulator - Rear fog light button - Fog light button - Button for night vision system - Onboard supply control unit

E1	Light switch
E20	Switch and instrument illumination regulator
E314	Rear fog light button
E315	Fog light button
E680	Button for night vision system
J519	Onboard supply control unit
K4	Side light warning lamp
K13	Rear fog light warning lamp
K17	Fog light warning lamp
L9	Light switch illumination bulb
SC1	Fuse 1 on fuse holder C
ST2	Fuse carrier 2
T4ec	4-pin connector
T32a	32-pin connector
375	Earth connection 10, in main wiring harness
*	see applicable current flow diagram for fuse assignment

Wiring Diagram AUDI A8 2012 - Onboard supply control unit - Output module for left headlight - Control unit for left daytime running light and side light - Front left turn signal bulb - Front left side marker bulb

J343	Left gas discharge bulb control unit
J519	Onboard supply control unit
J667	Output module for left headlight
J860	Control unit for left daytime running light and side light
L13	Left gas discharge (xenon) bulb
L148	Left cornering light bulb
L176	Left LED module for daytime running light and side light
M5	Front left turn signal bulb
M33	Front left side marker bulb
T14f	14-pin connector
T17a	17-pin connector
T17c	17-pin connector
383	Earth connection 18, in main wiring harness
*	Only for American markets
*2	From June 2010

Wiring Diagram AUDI A8 2012 - Control motor sender for left VARILIS headlight - Onboard supply control unit - Output module for left headlight - Left headlight range control motor - Left dynamic cornering light control motor

G695	Control motor sender for left VARILIS headlight
J519	Onboard supply control unit
J667	Output module for left headlight
J892	Output module 2 for left headlight
ST1	Fuse carrier 1
SF16	Fuse 16 in fuse holder F
T14f	14-pin connector
T16r	16-pin connector, in headlight
V48	Left headlight range control motor
V318	Left dynamic cornering light control motor
383	Earth connection 18, in main wiring harness
*	see applicable current flow diagram for fuse assignment

Wiring Diagram AUDI A8 2012 - Onboard supply control unit - Output module for right headlight - Control unit for right daytime running light and side light - Front right turn signal bulb - Front right side marker bulb

J344	Right gas discharge bulb control unit
J519	Onboard supply control unit
J668	Output module for right headlight
J861	Control unit for right daytime running light and side light
L14	Right gas discharge (xenon) bulb
L149	Right cornering light bulb
L177	Right LED module for daytime running light and side light
M7	Front right turn signal bulb
M34	Front right side marker bulb
T14e	14-pin connector
T17a	17-pin connector
T17c	17-pin connector
366	Earth connection 1, in main wiring harness
*	Only for American markets
*2	From June 2010

Wiring Diagram AUDI A8 2012 - Control motor sender for right VARILIS headlight - Onboard supply control unit - Output module for right headlight - Right headlight range control motor - Right dynamic cornering light control motor

G696	Control motor sender for right VARILIS headlight
J519	Onboard supply control unit
J668	Output module for right headlight
J893	Output module 2 for right headlight
ST2	Fuse carrier 2
SF6	Fuse 6 in fuse holder F
T14e	14-pin connector
T16r	16-pin connector, in headlight
V49	Right headlight range control motor
V319	Right dynamic cornering light control motor
366	Earth connection 1, in main wiring harness
*	see applicable current flow diagram for fuse assignment

Wiring Diagram AUDI A8 2012 - Onboard supply control unit - Control unit for cornering light and headlight range control

J519	Onboard supply control unit
J745	Control unit for cornering light and headlight range control
SF1	Fuse 1 in fuse holder F
ST1	Fuse carrier 1
T26a	26-pin connector
T32b	32-pin connector
TV41	Wiring junction for CAN bus extended high
TV42	Wiring junction for CAN bus extended low
T46	46-pin connector
390	Earth connection 25, in main wiring harness
391	Earth connection 26, in main wiring harness
B229	Connection (high bus), in interior wiring harness
B230	Connection (low bus), in interior wiring harness
B279	Positive connection 3 (15a) in main wiring harness
B670	Connection 3 (CAN bus extended high), in main wiring harness
B671	Connection 3 (CAN bus extended low), in main wiring harness
*	see applicable current flow diagram for fuse assignment
*2	Data bus wire (CAN bus)
*3	gradual introduction

Wiring Diagram AUDI A8 2012 - Onboard supply control unit - Data bus diagnostic interface

J519	Onboard supply control unit
J533	Data bus diagnostic interface
T32f	32-pin connector
T46	46-pin connector
B398	Connection 2 (convenience CAN bus, high), in main wiring harness
B399	Connection 3 (convenience CAN bus, high), in main wiring harness
B407	Connection 2 (convenience CAN bus, low), in main wiring harness
B408	Connection 3 (convenience CAN bus, low), in main wiring harness
*	Data bus wire (CAN bus)

Wiring Diagram AUDI A8 2012 - Onboard supply control unit - Wiring junction for convenience CAN bus - high

J519	Onboard supply control unit
T16c	16-pin connector
TV34	Wiring junction for convenience CAN bus, high
TV38	Wiring junction for convenience CAN bus, low
T46	46-pin connector
B397	Connection 1 (convenience CAN bus, high), in main wiring harness
B400	Connection 4 (convenience CAN bus, high), in main wiring harness
B401	Connection 5 (convenience CAN bus, high), in main wiring harness
B403	Connection 7 (convenience CAN bus, high), in main wiring harness
B406	Connection 1 (convenience CAN bus, low), in main wiring harness
B409	Connection 4 (convenience CAN bus, low), in main wiring harness
B410	Connection 5 (convenience CAN bus, low), in main wiring harness
B412	Connection 7 (convenience CAN bus, low), in main wiring harness
*	Data bus wire (CAN bus)

AUDI A8 2012 Overview of control units

Overview of control units

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Fitting location and connectors, right-hand drive

Roof electronics control unit -J528-

q	Components: -T8ah- , -E326- , -E633- , -E634- , -W65- , -W66- , -E635- , -E636- , -E8- , -G273- , -G384- , -E325- , -E584- , -E585- , -R164-

q	Fitting location and connectors

Sliding sunroof adjustment control unit -J245- /sliding sunroof motor -V1-

q	Fitting location and connectors

Control unit for front left belt tensioner -J854- /control unit for front right belt tensioner -J855-

q	Fitting location and connectors

q	Connector assignment

q	Fitting location and connectors, right-hand drive

q	Fitting location and connectors, right-hand drive

q	Assignment from model year 2014

q	Connector assignment

Control unit in dash panel insert -J285-

q	Components: -K1- , -K47- , -K261- , -Y24- , -K75- , -K104- , -K149- , -G1- , -K262-

q	Fitting location and connectors

Power steering control unit -J500-

q	Components: -V187- , -G269-

q	Fitting location and connectors

Left gas discharge bulb control unit -J343-

q	Components: -J667- , -V294- , -V295- , -A31- , -A32- , -A33- , -A34- , -A35- , -J860- , -L176- , -L148- , -M5- , -M33- , -G695- , -V48- , -V318- , -L13- , -A44- , -A45- , -M30- , -G832- , -G702- , -G703- , -V407- , -J892- , -M51- , -M92- , -L207- , -M29-

q	Fitting location and connectors, GDL headlight

q	Fitting location and connectors, LED headlight/LED headlight with matrix beam

Radiator fan control unit -J293-Radiator fan control unit 2 -J671-

q	Components: -V7- , -V177-

q	Fitting location and connectors

Right gas discharge bulb control unit -J344-

q	Components: -J668- , -A27- , -A28- , -A29- , -A30- , -A36- , -L14- , -L177- , -M7- , -M34- , -J861- , -L149- , -V49- , -V319- , -G696- , -M32- , -G833- , -G704- , -G705- , -V408- , -J893- , -M52- , -M93- , -L208- , -M31-

q	Fitting location and connectors, GDL headlight

q	Fitting location and connectors, LED headlight/LED headlight with matrix beam

33 -	Control unit for NOx sender -J583- , V8 TDI

q	Fitting location and connectors

AUDI A8 2012 Fitting location, onboard supply control unit J519 Unlock Lifetime Access for This Car. 2 -  6-pin connector -T6a- , black, connector G 4 -  17-pin connector -T17a- , brown, connector E 6 -  16-pin connector -T16c- , brown, connector C . Unlock Lifetime Access for This Car. 1 -  32-pin connector -T32a- , grey, connector A 2 -  6-pin connector -T6a- , black, connector G 3 -  17-pin connector -T17b- , black, connector D 4 -  17-pin connector -T17a- , brown, connector E 5 -  17-pin connector -T17c- , red, connector F 6 -  16-pin connector -T16c- , brown, connector C 7 -  32-pin connector -T32b- , black, connector B . AUDI A8 2012 Fitting location, garage door operation control unit J530 Unlock Lifetime Access for This Car. . AUDI A8 2012 Fitting location, engine control unit 2 J624 Fitting location, engine control unit 2 -J624- Fitting location     On left in plenum chamber -2- . Connectors Engine control unit 2 -J624- with 154-pin connector   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Engine control unit 2 -J624- 2 -  94-pin connector -T94a- , black Engine control unit 2 -J624- with 196-pin connector     Unlock Lifetime Access for This Car. 1 -  Engine control unit 2 -J624- B -  91-pin connector -T91- , black Back to overview . AUDI A8 2012 Fitting location, engine control unit J623 Fitting location, engine control unit -J623- Fitting location     At centre in plenum chamber -1- . Engine control unit -J623- with 154-pin connector   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Engine control unit -J623- 2 -  94-pin connector -T94- , black Engine control unit -J623- with 196-pin connector     Unlock Lifetime Access for This Car. A -  Engine control unit -J623- 1 -  105-pin connector -T105- , black 2 -  91-pin connector -T91- , black Back to overview . AUDI A8 2012 Fitting location, active steering control unit J792 Fitting location, active steering control unit -J792- Fitting location, left-hand drive     In driver footwell, in front of seat -1- . Connectors   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Active steering control unit -J792- 2 -  8-pin connector -T8d- , black 3 -  5-pin connector -T5f- , black, Active steering motor -V477- Back to overview . Unlock Lifetime Access for This Car. A -  Active steering control unit -J792- 1 -  10-pin connector -T10i- , black 2 -  8-pin connector -T8d- , black 3 -  5-pin connector -T5f- , black, Active steering motor -V477- Back to overview . AUDI A8 2012 Fitting location, control unit for night vision system J853 Fitting location, control unit for night vision system -J853- Fitting location     In footwell, in front of left seat -2- . Connectors   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Control unit for night vision system -J853- 2 -  12-pin connector -T12l- , black Back to overview . AUDI A8 2012 Fitting location, image processing control unit J851 Unlock Lifetime Access for This Car. A -  Image processing control unit -J851- 2 -  5-pin connector -T5n- , black, camera control unit -J852- Unlock Lifetime Access for This Car. A -  Image processing control unit -J851- 1 -  12-pin connector -T12p- , black 2 -  5-pin connector -T5n- , black, camera control unit -J852- Back to overview . AUDI A8 2012 Fitting location, control unit for sensor electronics J849 Unlock Lifetime Access for This Car. A -  50-pin connector -T50- , ivory Back to overview . AUDI A8 2012 Fitting location, ABS control unit J104 Unlock Lifetime Access for This Car. A -  ABS control unit -J104- 1 -  47-pin connector -T47- , black Back to overview . AUDI A8 2012 Fitting location, front passenger door control unit J387 Fitting location, front passenger door control unit -J387- Fitting location     In front passenger door -1- .   Note: Illustration shows right-hand drive model. Connectors   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Front passenger door control unit -J387- 2 -  20-pin connector -T20c- , black 4 -  32-pin connector -T32m- , blue Back to overview . AUDI A8 2012 Fitting location, airbag control unit J234 Unlock Lifetime Access for This Car. A -  100-pin connector -T100- , yellow Back to overview . AUDI A8 2012 Fitting location, driver door control unit J386 Fitting location, driver door control unit -J386- Fitting location     In driver door -1- .   Note: Illustration shows left-hand drive model. Connectors   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Driver door control unit -J386- 2 -  20-pin connector -T20b- , black 4 -  32-pin connector -T32k- , blue Back to overview . AUDI A8 2012 Fitting location, control unit for electrically adjustable steering column J866 Unlock Lifetime Access for This Car. A -  Control unit for electrically adjustable steering column -J866- 1 -  18-pin connector -T18a- , black Back to overview . AUDI A8 2012 Fitting location, control unit for electronic steering column lock J764 Unlock Lifetime Access for This Car. A -  Control unit for electronic steering column lock -J764- 1 -  6-pin connector -T6z- , black Back to overview . AUDI A8 2012 Fitting location, adaptive cruise control unit J428 Unlock Lifetime Access for This Car. A -  Adaptive cruise control unit -J428- 1 -  8-pin connector -T8a- , black Back to overview . AUDI A8 2012 Fitting location, control unit 2 for adaptive cruise control J850 Unlock Lifetime Access for This Car. A -  Control unit 2 for adaptive cruise control -J850- 1 -  8-pin connector -T8b- , black Back to overview . AUDI A8 2012 Fitting location, Tyre Pressure Monitoring System control unit J502 Unlock Lifetime Access for This Car. A -  Tyre Pressure Monitoring System control unit -J502- 1 -  12-pin connector -T12aw- , black Back to overview . AUDI A8 2012 Fitting location, roof electronics control unit J528 Unlock Lifetime Access for This Car. B -  Anti-theft alarm sensor -G578- D -  4-pin connector -T4dq- , black Connectors from model year 2014     Unlock Lifetime Access for This Car. 1 -  Front interior light -W1- q   with: microphone unit in front roof module -R164- , anti-theft alarm sensor -G578- , sunroof switch -E8- , interior monitoring sensor -G273- , vehicle inclination sender -G384- , sunroof button -E325- , button 1 for roof roller blind -E584- , button 2 for roof roller blind -E585- A -  6-pin connector -T6k- , blue, microphone unit in front roof module -R164- B -  4-pin connector -T4dq- , black, anti-theft alarm sensor -G578- C -  6-pin connector -T6au- , brown Back to overview . AUDI A8 2012 Fitting location, power steering control unit J500 Fitting location, power steering control unit -J500- Fitting location     On steering box -1- . Connectors   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Power steering control unit -J500- q   with: electromechanical power steering motor -V187- , steering moment sender -G269- 2 -  6-pin connector -T6bv- , black 3 -  Connection for steering moment sender -G269- Back to overview . AUDI A8 2012 Fitting location, steering column electronics control unit J527 B -  2-pin connector -T2dm- , black D -  13-pin connector -T13b- , black E -  Steering column electronics control unit -J527- q   with light switch -E2- , headlight flasher switch -E5- , cruise control system switch -E45- , intermittent wiper switch -E22- , steering angle sender -G85- , coil connector -F350- , steering wheel heater button -E522- , steering column adjustment switch -E167- , lane departure warning button -E517- , airbag coil connector and return ring with slip ring -F138- Back     Unlock Lifetime Access for This Car. A -  Steering column electronics control unit -J527- F -  16-pin connector -T16d- , black E -  4-pin connector -T4ap- , black Back to overview . AUDI A8 2012 Fitting location, power unit mounting control unit J931 Fitting location, power unit mounting control unit -J931- Fitting location Behind left wheel housing liner.     Unlock Lifetime Access for This Car. A -  Power unit mounting control unit -J931- B -  28-pin connector -T28- , black Back to overview . Fitting location, control unit for structure-borne sound -J869- Fitting location Under left front seat.     Unlock Lifetime Access for This Car. A -  Control unit for structure-borne sound -J869- B -  6-pin connector -T6bp- , black Back to overview . AUDI A8 2012 Fitting location, control unit for wiper motor J400 A -  Wiper motor control unit -J400- q   with windscreen wiper motor -V- B -  4-pin connector -T4ek- , black Back to overview . AUDI A8 2012 Fitting location, auxiliary heater control unit J364 Fitting location, auxiliary heater control unit -J364- Fitting location At front of right longitudinal member.     Unlock Lifetime Access for This Car. B -  2-pin connector -T2ia- , brown C -  Auxiliary heater control unit -J364- q   with: temperature sensor 2 for supplementary and auxiliary heating -G587- , flame monitor -G64- , temperature sensor -G18- , glow plug heater -Q9- , -V6- , fuel pre-heating heater element -Z66- Back to overview . AUDI A8 2012 Fitting location, radiator fan control unit -J293- /radiator fan control unit 2 -J671- Fitting location At front of radiator.     Unlock Lifetime Access for This Car. 1 -  Radiator fan control unit 2 -J671- q   Radiator fan 2 -V177- 2 -  Radiator fan control unit -J293- q   Radiator fan -V7- 4 -  4-pin connector -T4e- , black Back to overview . AUDI A8 2012 Fitting location, control unit in dash panel insert J285 Fitting location, control unit in dash panel insert -J285- Fitting location In driver side dash panel.     Unlock Lifetime Access for This Car. B -  2-pin connector -T2gd- , MOST bus, black C -  Control unit in dash panel insert -J285- q   with: main beam warning lamp -K1- , ABS warning lamp -K47- , warning lamp for left turn signal -K261- , display in dash panel insert -Y24- , airbag warning lamp -K75- , diesel electronics warning lamp -K104- , engine electronics warning lamp -K149- , fuel gauge -G1- , warning lamp for right turn signal -K262- Back to overview . AUDI A8 2012 Fitting location of control units on interior mirror 1 -  Camera control unit -J852- q   Fitting location and connectors 2 -  Automatic anti-dazzle interior mirror -Y7- q   with rain and light sensor -G397- , light sensor -G399- 3 -  Humidity sender -G355- 4 -  Main beam assist control unit -J844- Back to overview . Unlock Lifetime Access for This Car. A -  Camera control unit -J852- 2 -  12-pin connector -T12o- , black Back to overview . AUDI A8 2012 Fitting location, left gas discharge bulb control unit -J343- /right gas discharge bulb control unit -J344- Fitting location At headlight.     Unlock Lifetime Access for This Car. 1 -  Output module for left headlight -J667- /output module for right headlight -J668- 2 -  Left gas discharge bulb control unit -J343- /right gas discharge bulb control unit -J344- 14-pin connector -T14f- /14-pin connector -T14e- q   in headlight: left LED module for daytime running light and side light -L176- , left cornering light bulb -L148- , control unit for left daytime running light and side light -J860- , left gas discharge bulb control unit -L13- , front left turn signal bulb -M5- , front left side marker bulb -M33- , control motor sender for left VARILIS headlight -G695- , output module 2 for left headlight -J892- , left headlight range control motor -V48- , left dynamic cornering light control motor -V318- , control unit for right daytime running light and side light -J861- , right gas discharge bulb -L14- , right cornering light bulb -L149- , right LED module for daytime running light and side light -L177- , front right turn signal bulb -M7- , front right side marker bulb -M34- , control motor sender for right VARILIS headlight -G696- , output module 2 for right headlight -J893- , right headlight range control motor -V49- , right dynamic cornering light control motor -V319- Back to overview . AUDI A8 2012 Fitting location, output module 1 for left LED headlight -A31- /output module 1 for right LED headlight -A27- Fitting location At headlight.     Unlock Lifetime Access for This Car. 1 -  Output module 1 for left LED headlight -A31- /output module 1 for right LED headlight -A27- /output module for left matrix headlight -A44- /output module for right matrix headlight -A45- 2 -  Output module 2 for left LED headlight -A32- /output module 2 for right LED headlight -A28- /output module 4 for left LED headlight -A34- /output module 4 for right LED headlight -A30- /output module 5 for left LED headlight -A35- /output module 5 for right LED headlight -A36- 3 -  Output module 3 for left LED headlight -A33- /output module 3 for right LED headlight -A29- 4 -  14-pin connector -T14f- /14-pin connector -T14e- q   in headlight with matrix beam: left LED module for daytime running light and side light -L176- , left headlight main beam bulb -M30- , temperature sender 3 for left headlight -G832- , temperature sender 1 for left headlight -G702- , temperature sender 2 for left headlight -G703- , left headlight fan -V407- , right LED module for daytime running light and side light -L177- , right headlight main beam bulb -M32- , temperature sender 3 for right headlight -G833- , temperature sender 1 for right headlight -G704- , temperature sender 2 for right headlight -G705- , right headlight fan -V408- Back to overview . AUDI A8 2012 Fitting location, control unit for front left belt tensioner -J854- /control unit for front right belt tensioner -J855- Fitting location In lower part of B-pillars -1- .     Unlock Lifetime Access for This Car. 1 -  Control unit for front left belt tensioner -J854- /control unit for front right belt tensioner -J855- 4-pin connector -T4b- /4-pin connector -T4au- 5-pin connector -T5g- /5-pin connector -T5h- Connector assignment, control unit for front left belt tensioner -J854-     -T4b- (A) Designation   -T5g- (B) Designation 1 CAN bus extended, high B668 connection 2 (CAN bus extended, high) in main wiring harness B670 connection 3 (CAN bus extended, high) in main wiring harness Wiring junction for CAN bus extended, high -TV41- 1 Airbag control unit -J234- 2 CAN bus extended, low B669 connection 2 (CAN bus extended, low) in main wiring harness B671 connection 3 (CAN bus extended, low) in main wiring harness Wiring junction for CAN bus extended, low -TV42- 2 Airbag control unit -J234- 3 Terminal 31, to 369 earth connection 4 in main wiring harness 34 earth point under driver seat   3 4 Terminal 15, from fuse holder F -SF- 4 Airbag control unit -J234-     5 Airbag control unit -J234- Connector assignment, control unit for front right belt tensioner -J855-     -T4au- (A) Designation   -T5h- (B) Designation 1 CAN bus extended, high B108 connection 1 (CAN bus extended, high) in main wiring harness Wiring junction for CAN bus extended, high -TV41- 1 Airbag control unit -J234- 2 CAN bus extended, low B109 connection 1 (CAN bus extended, low) in main wiring harness Wiring junction for CAN bus extended, low -TV42- 2 Airbag control unit -J234- 3 Terminal 31, to 396 earth connection 31 in main wiring harness 35 earth point under front passenger seat   3 4 Terminal 15, from fuse holder F -SF- 4 Airbag control unit -J234-     5 Airbag control unit -J234- Back to overview . AUDI A8 2012 1 -  Sliding sunroof adjustment control unit -J245- /sliding sunroof motor -V1- A -  10-pin connector -T10am- Connector assignment, sliding sunroof adjustment control unit -J245-     -T10am- (A) Designation   -T10am- (A) Designation 1 LIN bus, B577 connection (LIN bus) in roof wiring harness B528 connection 1 (LIN bus) in main wiring harness B698 connection 3 (LIN bus) in main wiring harness Convenience system central control unit -J393-   6 Sunroof switch -E8- 2     7 Sunroof switch -E8- 3     8 4 Sunroof switch -E8- 9 Terminal 31, to 178 earth connection in sliding sunroof wiring harness 689 earth point at front centre of roof 5 Terminal 30, from fuse holder C -SC- 10 Terminal 30, from B591 positive connection 1 (30a) in main wiring harness Fuse holder F -SC- Back to overview . AUDI A8 2012 1 -  Control unit for NOx sender -J583- A -  5-pin connector -T5aw- , black Connector assignment, control unit for NOx sender -J583-     -T5aw- (A) Designation 1 Terminal 87, from B326 positive connection 12 (30a) in main wiring harness Fuse holder A -SA- 2 Terminal 31, to 370 earth connection 5 in main wiring harness 396 earth connection 31 in main wiring harness 35 earth point under front passenger seat 3 CAN bus, low B394 connection 5 (powertrain CAN bus, low) in main wiring harness D179 connection 2 (low bus) in engine compartment wiring harness Engine control unit -J623- 4 CAN bus, high B387 connection 5 (powertrain CAN bus, high) in main wiring harness D178 connection 2 (high bus) in engine compartment wiring harness Engine control unit -J623- 5 Terminal 31, to 370 earth connection 5 in main wiring harness 396 earth connection 31 in main wiring harness 35 earth point under front passenger seat Back to overview . AUDI A8 2012 1 -  Control unit for NOx sender -J583- A -  5-pin connector -T5av- , black Connector assignment, control unit for NOx sender -J583-     -T5av- (A) Designation 1 Terminal 87, from D189 connection (87a) in engine prewiring harness Fuse holder A -SA- 2 Terminal 31, to 85 earth connection 1 in engine compartment wiring harness 380 earth connection 15 in main wiring harness 43 earth point at bottom of right A-pillar 3 CAN bus, low D179 connection 2 (low bus) in engine compartment wiring harness Engine control unit -J623- 4 CAN bus, high D178 connection 2 (high bus) in engine compartment wiring harness Engine control unit -J623- 5   Back to overview . AUDI A8 2012 Fitting location, control unit for heads-up display J898 Fitting location, control unit for heads-up display -J898- Fitting location In front of dash panel on driver side -1- .     Unlock Lifetime Access for This Car. 1 -  Control unit for heads-up display -J898- Connector assignment for control unit for heads-up display -J898-     -T10bh- (A) Designation   -T10bh- (A) Designation 1 Dash panel insert CAN bus, high B674 connection 3 (running gear/dash panel insert CAN bus, high) in main wiring harness A204 connection (dash panel insert CAN bus, high) in dash panel wiring harness Data bus diagnostic interface -J533-   6   2 Dash panel insert CAN bus, low B678 connection 3 (running gear/dash panel insert CAN bus, low) in main wiring harness A205 connection (dash panel insert CAN bus, low) in dash panel wiring harness Data bus diagnostic interface -J533-   7   3     8 4 Terminal 30, B330 positive connection 16 (30a) in main wiring harness Fuse holder C -SC- 9 Terminal 31, 375 earth connection 10 in main wiring harness 376 earth connection 11 in main wiring harness 639 earth point on left A-pillar 5 Terminal 30, B330 positive connection 16 (30a) in main wiring harness Fuse holder C -SC- 10 Terminal 31, 375 earth connection 10 in main wiring harness 376 earth connection 11 in main wiring harness 639 earth point on left A-pillar Back to overview . AUDI A8 2012 Fitting location, control unit 1 for information electronics J794 Fitting location, control unit 1 for information electronics -J794- Fitting location At centre of dash panel -1- .     Unlock Lifetime Access for This Car. 1 -  Control unit 1 for information electronics -J794- D -  8-pin connector -T8p- , black E -  not assigned G -  12-pin connector -T12e- , blue J -  2-pin connector -T2ak- , MOST bus, black L -  4-pin connector -T4cn- , brown, connection for external audio sources -R199- M -  not assigned N -  not assigned O -  not assigned Connector assignment, control unit 1 for information electronics -J794-     -T8p- (D) Designation   -T8q- (H) Designation 9 Telephone bracket -R126- 1 10 Multimedia system operating unit -E380- 2 11 Multimedia system operating unit -E380-   3 Multimedia system operating unit -E380- 12 Terminal 31, to 332 earth connection 4 in dash panel wiring harness 135 earth connection 2 in dash panel wiring harness 602 earth point in front left footwell 4 13 Telephone bracket -R126- 5 Aerial amplifier for mobile telephone -R86- Chip card reader control unit -J676- 14 Multimedia system operating unit -E380- 6 Multimedia system operating unit -E380- 15 Terminal 30, from fuse holder F -SF- 7 B159 connection (diagnosis) in interior wiring harness B444 connection 1 (diagnosis) in main wiring harness Data bus diagnostic interface -J533- 16   8 -T12d- (F) Designation   -T12e- (G) Designation 1 Connection for external audio sources -R199- 1 2 Connection for external audio sources -R199-   2 Microphone unit in front roof module -R164- Front right microphone -R141- 3 Connection for external audio sources -R199-   3 Microphone unit in front roof module -R164- Front right microphone -R141- 4 Connection for external audio sources -R199-   4 Chip card reader control unit -J676- 5 Connection for external audio sources -R199-   5 Reversing camera system control unit -J772- Control unit for overhead view camera -J928- 6 Connection for external audio sources -R199- 6 Chip card reader control unit -J676- 7 Connection for external audio sources -R199-   7 8 Connection for external audio sources -R199-   8 Microphone unit in front roof module -R164- Front left microphone -R140- 9 Connection for external audio sources -R199-   9 Microphone unit in front roof module -R164- Front left microphone -R140- 10 Connection for external audio sources -R199-   10 Chip card reader control unit -J676- 11 Connection for external audio sources -R199-   11 Reversing camera system control unit -J772- Control unit for overhead view camera -J928- 12 Connection for external audio sources -R199-   12 Back to overview . AUDI A8 2012 Fitting location, DVD changer R161 AUDI A8 2012 Overview of earth points 1 -  DVD changer -R161- B -  2-pin connector -T2dn- , MOST bus, black AUDI A8 2012 Fitting location, seat and steering column adjustment control unit with memory J136 1 -  Seat and steering column adjustment control unit with memory -J136- B -  10-pin connector -T10m- , black Connector assignment, seat and steering column adjustment control unit with memory -J136-     -T12aa- (A) Designation   -T12aa- (A) Designation 1 Driver seat backrest adjustment motor -V45-   7 Driver seat rake adjustment motor -V243- 2 Driver seat head restraint adjustment motor -V103-   8 Driver seat height adjustment motor -V245- 3 Driver seat height adjustment motor -V245-   9 Driver seat longitudinal adjustment motor -V28- 4 Driver seat head restraint adjustment motor -V103-   10 Driver seat rake adjustment motor -V243- 5 Driver seat longitudinal adjustment motor -V28-   11 Terminal 30, from driver seat adjustment thermal fuse 1 -S44- 6 Driver seat backrest adjustment motor -V45-   12 Terminal 31, to 95 earth connection 1 in seat adjustment wiring harness 369 earth connection 4 in main wiring harness 34 earth point under driver seat -T10m- (B) Designation   -T10m- (B) Designation 1 Driver seat depth adjustment motor -V256- 6 Potentiometer for seat belt height adjustment -G372- 2 Seat belt height adjustment motor -V233- 7 3 Seat belt height adjustment motor -V233- 8 Driver upper backrest adjustment motor -V258- 4 Driver upper backrest adjustment motor -V258-   9 Potentiometer for seat belt height adjustment -G372- 5 Driver seat depth adjustment motor -V256- 10 -T32i- (C) Designation   -T32i- (C) Designation 1     17 2     18 3 Driver door control unit -J386- 19 4     20 Head restraint adjustment switch -E155- Switch module for driver seat -E663- 5 Driver seat massage function button -E670-   21 6 Seat longitudinal adjustment button -E418- Switch module 2 for driver seat -E667-   22 Driver seat backrest adjustment switch -E96- Switch module for driver seat -E663- 7 Seat height adjustment button -E424- Switch module 2 for driver seat -E667-   23 Driver seat height adjustment switch -E364- Switch module for driver seat -E663- 8     24 Driver seat rake adjustment switch -E222- Switch module for driver seat -E663- 9     25 Driver seat longitudinal adjustment switch -E363- Switch module for driver seat -E663- 10   26 11     27 12     28 Backrest adjustment button -E425- Switch module 2 for driver seat -E667- 13     29 14     30 15 Convenience CAN bus, low M28 connection (convenience CAN bus, low) in driver seat adjustment wiring harness 31 16 Convenience CAN bus, high M27 connection (convenience CAN bus, high) in driver seat adjustment wiring harness 32 Back to overview . AUDI A8 2012 Fitting location, catalytic converter heater control unit 1 J1021 Fitting location, catalytic converter heater control unit 1 -J1021- Fitting location Behind front axle on right, near gearbox -1- .     Unlock Lifetime Access for This Car. 1 -  Catalytic converter heater control unit 1 -J1021- B -  4-pin connector -T4gk- , black Connector assignment, catalytic converter heater control unit 1 -J1021-     -T4gk- (B) Designation   -T4gk- (B) Designation 1 Powertrain CAN bus, high E123 connection 1 (powertrain CAN bus, high) in engine wiring harness   3 Powertrain CAN bus, low E124 connection 1 (powertrain CAN bus, low) in engine wiring harness 2 Terminal 31, to 618 earth point on left on engine   4 Terminal 87, from D181 connection 2 (87a) in engine compartment wiring harness -T2qc- (A) Designation   -T2qb- (C) Designation 1 Catalytic converter heater 1 -Z119- 1 Terminal 30 wiring junction -TV2- Catalytic converter heater fuse 2 -S354- 2 Catalytic converter heater 2 -Z120- 2 Terminal 30 wiring junction -TV2- Catalytic converter heater fuse -S351- Back to overview .     AUDI A8 2012 Overview of earth points Unlock Lifetime Access for This Car. q   Fitting location on V8 TFSI q   Fitting location on V6 TFSI q   Fitting location on V8 TFSI q   Fitting location on V6 TFSI AUDI A8 2012 Overview of control units Overview of control units Unlock Lifetime Access for This Car. 2 -  Convenience system central control unit 2 -J773-, from model year 2014 q   Fitting location and connectors 3 -  Control units on right in luggage compartment, up to model year 2013 q   Fitting location and connectors 4 -  Convenience system central control unit -J393-, from model year 2014 q   Fitting location and connectors 5 -  Remote control receiver for auxiliary heater -R64-, from model year 2014 q   Fitting location and connectors 6 -  Data bus diagnostic interface -J533-, from model year 2014 q   Fitting location and connectors 7 -  Park assist steering control unit -J791-, from model year 2014 q   Fitting location and connectors 10 -  Control units on left in luggage compartment, up to model year 2013 q   Fitting location and connectors Power latching control unit -J657- q   Components: -F333-, -F332-, -V382- q   Fitting location and connectors 16 -  Digital sound package control unit -J525-, Bang & Olufsen, from model year 2014 q   Fitting location and connectors 17 -  Adaptive suspension control unit -J197-, from model year 2014 q   Fitting location and connectors 26 -  Headlight range control unit -J431-/control unit for cornering light and headlight range control -J745-, models with cornering light, from model year 2014 q   Fitting location and connectors 27 -  Aerial amplifier for mobile telephone -R86-, from model year 2014 q   Fitting location and connectors Rear sliding sunroof control unit -J392-/rear sliding sunroof motor -V146-, panoramic sunroof q   Fitting location and connectors 35 -  Control unit for vehicle location system -J895-, from model year 2014 q   Fitting location and connectors 36 -  Trailer detector control unit -J345-, from model year 2014 q   Fitting location and connectors 37 -  Reversing camera system control unit -J772-, from model year 2014 q   Fitting location and connectors AUDI A8 2012 Control units on right in luggage compartment, up to model year 2013 Control units on right in luggage compartment, up to model year 2013 On right in luggage compartment, on rear panel.     Unlock Lifetime Access for This Car. Headlight range control unit -J431- q   Components: -J431-, -J745- (for models with cornering light only) q   Fitting location and connectors q   Fitting location and connectors from MY 2014 2 -  46-pin connector -T46-, black, CAN disconnector Parking aid control unit -J446-/park assist steering control unit -J791- q   Fitting location and connectors From model year 2014, the parking aid control unit -J446- is being discontinued. The functions will be provided by the onboard supply control unit -J519- instead. Park assist steering control unit -J791- q   Fitting location and connectors from MY 2014 q   Fitting location and connectors from MY 2014 q   Fitting location and connectors from MY 2014 6 -  Relay and fuse carrier on right in luggage compartment q   Fitting location and connectors from MY 2014 q   Fitting location and connectors from MY 2014 AUDI A8 2012 Fitting location, headlight range control unit J431 / control unit for cornering light and headlight range control J745 , models with cornering light, up to model year 2013 Unlock Lifetime Access for This Car. . AUDI A8 2012 Fitting location, headlight range control unit J431 / control unit for cornering light and headlight range control J745 , models with cornering light, from model year 2014 Fitting location, headlight range control unit -J431-/control unit for cornering light and headlight range control -J745-, models with cornering light, from model year 2014 Fitting location On left in luggage compartment, on rear panel -1-.     Unlock Lifetime Access for This Car. 1 -  Headlight range control unit -J431-/control unit for cornering light and headlight range -J745- A -  26-pin connector -T26- Connector assignment, headlight range control unit -J431-/control unit for cornering light and headlight range -J745-     -T26- (A) Designation   -T26- (A) Designation 1     14 2 CAN bus extended, high   15 Right headlight range control motor -V49- 3 CAN bus extended, low   16 Left headlight range control motor -V48- 4 CAN bus, high   17 Left headlight range control motor -V48- 5 CAN bus, low screen earth, USA only   18 Left headlight range control motor -V48- 6     19 Left headlight range control motor -V48- 7     20 Right headlight range control motor -V49- 8     21 Right headlight range control motor -V49- 9 Screen earth, USA only   22 Right headlight range control motor -V49- 10     23 Terminal 15, from fuse holder F -SF- 11     24 Terminal 31, to 675 earth point 2 on right in luggage compartment 12     25 13     26 Back to overview . AUDI A8 2012 Fitting location, parking aid control unit J446 / park assist steering control unit J791 , up to model year 2013 Unlock Lifetime Access for This Car. B -  12-pin connector -T12i-, brown C -  12-pin connector -T12h-, black Back to overview . AUDI A8 2012 Fitting location, park assist steering control unit J791 , from model year 2014 Fitting location, park assist steering control unit -J791-, from model year 2014 Fitting location In luggage compartment in right luggage compartment recess -1-.     Unlock Lifetime Access for This Car. 1 -  Park assist steering control unit -J791- A -  16-pin connector -T16h-, brown B -  12-pin connector -T12i-, brown C -  12-pin connector -T12h-, black Connector assignment of park assist steering control unit -J791-     -T16h- (A) Designation   -T12i- (B) Designation   -T12h- (C) Designation 1 Terminal 15, from fuse holder F -SF-   1 Front sender voltage supply 1 2 Rear parking aid warning buzzer -H15-   2 Front sender earth   2 Rear centre right parking aid sender -G205- 3     3 Front parking aid warning buzzer -H22-   3 Rear centre left parking aid sender -G204- 4 Parking aid button -E266- 4 Front parking aid warning buzzer -H22-   4 Rear right parking aid sender -G206- 5     5 Front left parking aid sender -G255-   5 Rear left parking aid sender -G203- 6 CAN bus, high   6 Front centre left parking aid sender -G254-   6 Rear right park assist steering sender -G717- 7     7 Front centre right parking aid sender -G253-   7   8 Terminal 31, to 51 earth point on right in luggage compartment   8 Front right parking aid sender -G252-   8 Rear sender earth 9 Warning light for park assist steering -K241-   9 Front left sender for park assist steering on left side of vehicle -G568-   9   10 Rear parking aid warning buzzer -H15-   10 Front right sender for park assist steering on right side of vehicle -G569- 10 Rear left park assist steering sender -G716- 11     11   11 Rear sender voltage supply 12     12   12   13 Parking aid warning lamp -K136-         14           15 CAN bus, low           16 Park assist steering button -E581-       Back to overview . AUDI A8 2012 Fitting location, adaptive suspension control unit J197 , up to model year 2013 Unlock Lifetime Access for This Car. A -  Adaptive suspension control unit -J197- 2 -  18-pin connector -T18b-, grey 4 -  12-pin connector -T12a-, green 5 -  6-pin connector -T6b-, blue Back to overview . AUDI A8 2012 Fitting location, adaptive suspension control unit J197 , from model year 2014 Fitting location, adaptive suspension control unit -J197-, from model year 2014 Fitting location On left in luggage compartment, on rear panel -1-.     Unlock Lifetime Access for This Car. 1 -  Adaptive suspension control unit -J197- A -  9-pin connector -T9a-, grey B -  18-pin connector -T18b-, grey C -  15-pin connector -T15a-, purple D -  12-pin connector -T12a-, green E -  6-pin connector -T6b-, blue Connector assignment, adaptive suspension control unit -J197-     -T9a- (A) Designation   -T18b- (B) Designation   -T15a- (C) Designation 1 Terminal 30, from fuse holder F -SF-   1 Valve voltage supply   1 Front left vehicle level sender -G78- 2     2 Front left suspension strut valve -N148-   2 Front left vehicle level sender -G78- 3 Terminal 31, to 391 earth connection 26 in main wiring harness 675 earth point 2 on right in luggage compartment   3 Front right suspension strut valve -N149-   3 Front left vehicle level sender -G78- 4     4 Valve block   4 Front right vehicle level sender -G289- 5     5 Rear left suspension strut valve -N150-   5 Front right vehicle level sender -G289- 6 Terminal 15, from fuse holder F -SF-   6 Rear right suspension strut valve -N151-   6 Front right vehicle level sender -G289- 7     7 Valve block   7 Rear left vehicle level sender -G76- 8     8 Adaptive suspension pressure accumulator valve -N311-   8 Rear left vehicle level sender -G76- 9     9 Adaptive suspension compressor relay -J403-   9 Rear left vehicle level sender -G76-     10   10 Rear right vehicle level sender -G77-     11   11 Rear right vehicle level sender -G77-     12   12 Rear right vehicle level sender -G77-     13   13 Pressure sender for adaptive suspension -G291-     14   14 Pressure sender for adaptive suspension -G291-     15   15 Pressure sender for adaptive suspension -G291-     16         17         18     -T12a- (D) Designation   -T6b- (E) Designation 1 Front left shock absorber damping adjustment valve -N336-   1 FlexRay bus 2 Rear left shock absorber damping adjustment valve -N338-   2 FlexRay bus 3     3 4 Front left shock absorber damping adjustment valve -N336-   4 Control unit for sensor electronics -J849-, high-voltage models only 5 Front right shock absorber damping adjustment valve -N337-   5 Control unit for sensor electronics -J849-, high-voltage models only 6     6 7 Rear left shock absorber damping adjustment valve -N338-       8 Rear right shock absorber damping adjustment valve -N339-       9 Compressor temperature sender for adaptive suspension -G290-       10 Front right shock absorber damping adjustment valve -N337-       11 Rear right shock absorber damping adjustment valve -N339-       12 Compressor temperature sender for adaptive suspension -G290-       Back to overview . AUDI A8 2012 Fitting location, data bus diagnostic interface J533 , up to model year 2013 Fitting location, data bus diagnostic interface -J533-, up to model year 2013 Fitting location     On right in luggage compartment, on rear panel -1-.   Unlock Lifetime Access for This Car. Connectors 1 -  32-pin connector -T32f-, black 2 -  2-pin connector -T2gb-, MOST bus, black Back to overview . AUDI A8 2012 Fitting location, data bus diagnostic interface J533 , from model year 2014 Fitting location, data bus diagnostic interface -J533-, from model year 2014 Fitting location On right in luggage compartment, on rear panel -1-.   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 1 -  Data bus diagnostic interface -J533- A -  32-pin connector -T32f-, black B -  2-pin connector -T2gb-, MOST bus, black Connector assignment, data bus diagnostic interface -J533-     -T32f- (A) Designation   -T32f- (A) Designation 1     17 LIN bus, B481 connection 17 in main wiring harness 2 CAN bus extended, low   18 CAN bus extended, high 3 16-pin connector -T16-, diagnostic connection   19 16-pin connector -T16-, diagnostic connection 4 Convenience CAN bus, low   20 Convenience CAN bus, high 5 Powertrain CAN bus, low   21 Powertrain CAN bus, high 6 Dash panel insert CAN bus, low   22 Dash panel insert CAN bus, high 7 FlexRay bus, ABS control unit -J104- 23 FlexRay bus, ABS control unit -J104- 8 FlexRay bus, adaptive suspension control unit -J197- All-wheel drive control unit -J492- 24 FlexRay bus, adaptive suspension control unit -J197- All-wheel drive control unit -J492- 9 FlexRay bus, control unit for sensor electronics -J849-   25 FlexRay bus, control unit for sensor electronics -J849- 10 FlexRay bus, control unit 2 for adaptive cruise control -J850-   26 FlexRay bus, control unit 2 for adaptive cruise control -J850- 11     27 12     28 13 Terminal 31, to 675 earth point 2 on right in luggage compartment   29 Terminal 31, to 675 earth point 2 on right in luggage compartment 14 Terminal 15, from fuse holder F -SF-   30   15     31 16 Terminal 30, from fuse holder F -SF-   32 Ring break diagnostic cable B444 connection 1 (diagnosis) in main wiring harness Back to overview . AUDI A8 2012 Fitting location, convenience system central control unit 2 J773 , up to model year 2013 Unlock Lifetime Access for This Car. A -  Convenience system central control unit 2 -J773- 2 -  12-pin connector -T12ag-, brown 3 -  12-pin connector -T12ah-, black Back to overview . AUDI A8 2012 Fitting location, convenience system central control unit 2 J773 , from model year 2014 Fitting location, convenience system central control unit 2 -J773-, from model year 2014 Fitting location On right in luggage compartment, on rear panel -1-.     Unlock Lifetime Access for This Car. 1 -  Convenience system central control unit 2 -J773- A -  16-pin connector -T16o-, brown B -  12-pin connector -T12ag-, brown C -  12-pin connector -T12ah-, black Connector assignment, convenience system central control unit 2 -J773-     -T16o- (A) Designation   -T12ag- (B) Designation   -T12ah- (C) Designation 1 Front left footwell illumination bulb -L151-   1 Terminal 31, to 390 earth connection 25 in main wiring harness 391 earth connection 26 in main wiring harness 675 earth point 2 on right in luggage compartment   1 Rear right door ambient lighting bulb -L167- 2 Front left door ambient lighting bulb -L158-   2 Light conductor for rear centre console ambient lighting -W75- 2 3 Front left door ambient lighting bulb -L158-   3 Terminal 30, from fuse holder F -SF-   3 Rear right footwell illumination bulb -L107- 4 Rear left footwell illumination bulb -L106-   4 Terminal 30, from fuse holder F -SF-   4 Front right door ambient lighting bulb -L179- 5 Light conductor for front centre console ambient lighting -W74-   5 Rear right door ambient lighting bulb -L167- 5 Front right door ambient lighting bulb -L179- 6 Rear left door ambient lighting bulb -L166-   6 CAN bus, low Wiring junction for convenience CAN bus, low -TV38-   6 Front right footwell illumination bulb -L152- 7 Rear left door ambient lighting bulb -L166-   7     7 Rear right door ambient lighting bulb -L167- 8 Light conductor for front centre console ambient lighting -W74-   8 Light conductor for rear centre console ambient lighting -W75-   8 Light conductor for front centre console ambient lighting -W74- 9 Front left footwell illumination bulb -L151-   9     9 Rear right footwell illumination bulb -L107- 10 Front left door ambient lighting bulb -L158-   10 Light conductor for rear centre console ambient lighting -W75- 10 Light conductor for front right sill panel moulding ambient lighting -W68- 11 Light conductor for front left sill panel moulding ambient lighting -W67-   11 Light conductor for rear right sill panel moulding ambient lighting -W70-   11 Front right door ambient lighting bulb -L179- 12 Rear left footwell illumination bulb -L106-   12 CAN bus, high Wiring junction for convenience CAN bus, high -TV34-   12 Front right footwell illumination bulb -L152- 13           14 Rear left door ambient lighting bulb -L166-           15 Light conductor for rear left sill panel moulding ambient lighting -W69-       16           Back to overview . AUDI A8 2012 Fitting location, convenience system central control unit J393 , up to model year 2013 Fitting location, convenience system central control unit -J393-, up to model year 2013 Fitting location     On right in luggage compartment, on rear panel -1-. Connectors   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Convenience system central control unit -J393- 3 -  32-pin connector -T32c-, grey 5 -  17-pin connector -T17d-, black 7 -  17-pin connector -T17e-, brown Back to overview . AUDI A8 2012 Fitting location, convenience system central control unit J393 , from model year 2014 Fitting location, convenience system central control unit -J393-, from model year 2014 Fitting location On right in luggage compartment, on rear panel -1-.     Unlock Lifetime Access for This Car. 1 -  Convenience system central control unit -J393- A -  17-pin connector -T17d-, black B -  32-pin connector -T32d-, black C -  17-pin connector -T17e-, brown D -  32-pin connector -T32e-, blue E -  32-pin connector -T32c-, grey F -  2-pin connector -T2a-, blue-grey, central locking and anti-theft alarm system aerial -R47- Connector assignment, convenience system central control unit -J393-     -T32c- (E) Designation   -T32c- (E) Designation 1     17 2 B335 connection 1 (54) in main wiring harness   18 Additional brake light bulb -M25- 3 Entry and start authorisation switch -E415-, up to June 2010 Release button for rear lid lock cylinder -F248-   19   4 Contact switch in lock cylinder for rear lid, anti-theft alarm system and central locking system -F124- 20 Entry and start authorisation switch -E415-, up to June 2010 Entry and start authorisation button -E408-, from July 2010 5 Engine control unit -J623-   21   6     22 7     23 8     24 9     25 10     26 Driver door control unit -J386-, high-voltage vehicles only 11 Entry and start authorisation switch -E415-, up to June 2010   27   12 Entry and start authorisation switch -E415-, up to June 2010 Entry and start authorisation button -E408-, from July 2010   28 E26 connection (selector position P/N) in Motronic wiring harness 13 Entry and start authorisation switch -E415-, up to June 2010 Entry and start authorisation button -E408-, from July 2010   29   14     30 15 Control unit for electronic steering column lock -J764- 31 16 Terminal 15 voltage supply relay -J329-   32   -T32d- (B) Designation   -T32d- (B) Designation   -T17d- (A) Designation 1     17 LIN bus   1 Right reversing light bulb -M17- Right reversing light bulb -M17-, USA only 2     18 LIN bus, rear lid power opening control unit -J938-   2 Power latching motor for rear lid -V382- 3 Entry​and​start​authorisation​switch -E415-   19 Convenience CAN bus, high Wiring junction for convenience CAN bus, high -TV34-   3   4 Heated rear window relay -J9-   20 Convenience CAN bus, low Wiring junction for convenience CAN bus, low -TV38-   4 Power latching motor for rear lid -V382- 5     21   5 Rear lid central locking motor -V53- 6     22   6 Tank filler flap locking motor -V155- 7     23   7 Tank filler flap locking motor -V155- 8     24   8 Right tail light bulb 2 -M50- Bulb 2 for right brake, turn signal and tail light -M73- 9     25   9 Left tail light bulb -M4- Left brake, turn signal and tail light bulb -M69-, USA only 10     26   10 Right brake light bulb 2 -M87- Right brake, turn signal and tail light bulb -M85-, USA only 11     27   11 Rear right fog light bulb -L47- Rear right fog light bulb -L47- 12     28   12 Bulb 2 for rear left turn signal -M80- 13     29   13   14 Number plate light -X-   30 Rear right turn signal bulb -M8- Rear right side marker bulb -M38-, USA only   14   15 Relay for power sockets -J807- 31 Rear left turn signal bulb -M6- Rear left side marker bulb -M37-, USA only 15 Terminal 30, from fuse holder F -SF- 16 Alarm horn -H12-   32 LIN bus, heated windscreen control unit -J505-, roof electronics control unit -J528-, anti-theft alarm sensor -G578-   16 Terminal 30, from fuse holder F -SF-         17 Terminal 31, to 391 earth connection 26 in main wiring harness 675 earth point 2 on right in luggage compartment -T32e- (B) Designation   -T32e- (B) Designation   -T17e- (A) Designation 1 Entry and start authorisation button -E408-, up to June 2010   17     1 Rear roller blind motor -V91- 2     18   2 Rear roller blind motor -V91- 3 Entry and start authorisation button -E408-, up to June 2010   19     3   4     20 Power latching system limit switch, luggage compartment unlocked -F332-   4   5 Power latching system limit switch, luggage compartment locked -F333-   21     5 Rear left fog light bulb -L46- Rear left fog light bulb -L46-, USA only 6     22   6 Left tail light bulb -M9- Left brake and turn signal bulb -M56-, USA only 7 Luggage compartment aerial for entry and start system -R137-   23     7   8 Luggage compartment aerial for entry and start system -R137-   24     8 B447 connection (luggage compartment light) in main wiring harness 9 Right aerial for entry and start authorisation -R201-   25     9 Left tail light bulb 2 -M49- Bulb 2 for left brake, turn signal and tail light -M72-, USA only 10 Right aerial for entry and start authorisation -R201-   26     10 Right tail light bulb -M2- Right brake, turn signal and tail light bulb -M70-, USA only 11 Left aerial for entry and start authorisation -R200-   27     11 Left tail light bulb 2 -M86- Left brake and turn signal bulb 2 -M84-, USA only 12 Left aerial for entry and start authorisation -R200-   28     12 Right brake light bulb -M10- Right brake and turn signal bulb -M57-, USA only 13 Interior aerial 2 for entry and start system -R139-   29 Contact sensor for rear right exterior door handle -G418-   13 Bulb 2 for rear right turn signal -M81- 14 Interior aerial 2 for entry and start system -R139-   30 Contact sensor for front right exterior door handle -G606-   14 B479 connection 15 in main wiring harness 15 Interior aerial 1 for entry and start system -R138-   31 Contact sensor for rear left exterior door handle -G417-   15 Control unit for electronic steering column lock -J764- 16 Interior aerial 1 for entry and start system -R138-   32 Contact sensor for front left exterior door handle -G605-   16 Terminal 30, from fuse holder F -SF-           17 Terminal 31, to 391 earth connection 26 in main wiring harness 675 earth point 2 on right in luggage compartment Back to overview . AUDI A8 2012 Fitting location, voltage stabilizer J532 Unlock Lifetime Access for This Car. A -  Voltage stabilizer -J532- 1 -  12-pin connector -T12y-, black Back to overview . AUDI A8 2012 Fitting location, control unit for electromechanical parking brake J540 Unlock Lifetime Access for This Car. A -  Control unit for electromechanical parking brake -J540- 1 -  30-pin connector -T30a-, black Back to overview . AUDI A8 2012 Fitting location, all-wheel drive control unit J492 Unlock Lifetime Access for This Car. A -  All-wheel drive control unit -J492- 1 -  47-pin connector -T47a-, black Back to overview . AUDI A8 2012 Fitting location, heated windscreen control unit J505 Unlock Lifetime Access for This Car. A -  Heated windscreen control unit -J505- 1 -  4-pin connector -T4em-, black 2 -  B1, terminal 30 3 -  C1, terminal 31 Back to overview . AUDI A8 2012 Fitting location, rear left door control unit J388 Unlock Lifetime Access for This Car. A -  Rear left door control unit -J388- 2 -  20-pin connector -T20d- 3 -  16-pin connector -T16m- 4 -  Not assigned Back to overview . AUDI A8 2012 Fitting location, rear right door control unit J389 Unlock Lifetime Access for This Car. A -  Rear right door control unit -J389- 2 -  20-pin connector -T20e- 3 -  16-pin connector -T16n- 4 -  Not assigned Back to overview . AUDI A8 2012 Fitting location, rear lid control unit J605 Unlock Lifetime Access for This Car. A -  Rear lid control unit -J605- 2 -  4-pin connector -T4do-, black 3 -  5-pin connector -T5x-, black, motor 1 for rear lid -V444- Back to overview . AUDI A8 2012 Fitting location, rear lid power opening control unit J938 Fitting location, rear lid power opening control unit -J938- Fitting location Behind the rear bumper cover -1-.     Unlock Lifetime Access for This Car. 1 -  Rear lid power opening control unit -J938- B -  5-pin connector -T5am- Connector assignment, rear lid power opening control unit -J938-     -T4hu- (A) Designation   -T5am- (B) Designation 1 Terminal 30, from fuse holder F -SF-   1 Rear lid power opening sender -G750- 2 Terminal 31, to 394 earth connection 29 in main wiring harness 238 earth connection 1 in interior wiring harness 51 earth point on right in luggage compartment   2 Rear lid power opening sender -G750- 3 LIN bus, from convenience system central control unit -J393-   3 4     4 Rear lid power opening sender 2 -G760-     5 Rear lid power opening sender 2 -G760- Back to overview . AUDI A8 2012 Fitting location of control units on left in luggage compartment, up to model year 2013 q   Fitting location and connectors from MY 2014 q   Fitting location and connectors from MY 2014 q   Fitting location and connectors from MY 2014 q   Fitting location and connectors from MY 2014 q   Fitting location and connectors from MY 2014 AUDI A8 2012 Fitting location, remote control receiver for auxiliary heater R64 , up to model year 2013 Fitting location, remote control receiver for auxiliary heater -R64-, up to model year 2013 Fitting location     On left in luggage compartment, on rear panel -1-. Connectors   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Remote control receiver for auxiliary heater -R64- 2 -  2-pin connector -T2id-, beige, aerial connection Back to overview . AUDI A8 2012 Fitting location, remote control receiver for auxiliary heater R64 , from model year 2014 Fitting location, remote control receiver for auxiliary heater -R64-, from model year 2014 Fitting location On right in luggage compartment, on rear panel -1-.     Unlock Lifetime Access for This Car. 1 -  Remote control receiver for auxiliary heater -R64- A -  2-pin connector -T2id-, beige, aerial connection B -  6-pin connector -T6aq-, blue Connector assignment, remote control receiver for auxiliary heater -R64-     -T6aq- (B) Designation 1 Terminal 31, to 386 earth connection 21 in main wiring harness 688 earth point 2 on centre tunnel 2 Terminal 30, from fuse holder C -SC- 3   4   5 Auxiliary heater control unit -J364- 6   Back to overview . AUDI A8 2012 Fitting location, aerial amplifier for mobile telephone R86 , up to model year 2013 Connectors A -  2-pin connector -T2fv-, purple, from roof aerial -R216- B -  2-pin connector -T2fw-, black, to telephone bracket -R126- C -  4-pin connector -T4cm-, black Back to overview . AUDI A8 2012 Fitting location, aerial amplifier for mobile telephone R86 , from model year 2014 Fitting location, aerial amplifier for mobile telephone -R86-, from model year 2014 Fitting location On left in luggage compartment, on rear panel -1-.   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 1 -  Aerial amplifier for mobile telephone -R86- A -  2-pin connector -T2fv-, purple, from roof aerial -R216- B -  4-pin connector -T4cm-, black C -  2-pin connector -T2fw-, black, to telephone bracket -R126- Connector assignment, aerial amplifier for mobile telephone -R86-     -T4cm- (B) Designation 1 Terminal 30, from fuse holder F -SF- 2 Terminal 31, to 397 earth connection 32 in main wiring harness 733 earth point 3 on left in luggage compartment 3 Switch-on signal, B484 connection 20 in main wiring harness Control unit 1 for information electronics -J794- Telephone bracket -R126- 4   Back to overview . AUDI A8 2012 Fitting location, control unit for vehicle location system J895 , up to model year 2013 Fitting location, control unit for vehicle location system -J895-, up to model year 2013 Fitting location     On left in luggage compartment, on rear panel -1-. Connectors   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Control unit for vehicle location system -J895- 2 -  12-pin connector -T12f-, brown 3 -  Not assigned Back to overview . AUDI A8 2012 Fitting location, control unit for vehicle location system J895 , from model year 2014 Fitting location, control unit for vehicle location system -J895-, from model year 2014 Fitting location On right in luggage compartment, on rear panel -1-.     Unlock Lifetime Access for This Car. 1 -  Control unit for vehicle location system -J895- A -  12-pin connector -T12f-, brown AUDI A8 2012 Fitting location, trailer detector control unit J345 , up to model year 2013 Unlock Lifetime Access for This Car. A -  Trailer detector control unit -J345- 2 -  12-pin connector -T12b-, red 3 -  12-pin connector -T12c-, blue Back to overview . AUDI A8 2012 Fitting location, trailer detector control unit J345 , from model year 2014 Fitting location, trailer detector control unit -J345-, from model year 2014 Fitting location On left in luggage compartment, on rear panel -1-.     Unlock Lifetime Access for This Car. 1 -  Trailer detector control unit -J345- B -  6-pin connector -T6bz-, black D -  10-pin connector -T10bf-, red Connector assignment, trailer detector control unit -J345-     -T24a- (A) Designation   -T24a- (A) Designation 1 Trailer socket -U10- 13 Hinged tow attachment ball head motor -V317- 2 Trailer socket -U10- 14 Hinged tow attachment ball head motor -V317- 3 Trailer socket -U10- 15 Trailer socket -U10- 4     16 5     17 6 Hinged tow attachment ball head motor -V317-   18 Trailer socket -U10- 7 Hinged tow attachment ball head motor -V317-   19 Trailer socket -U10- 8     20 9 Hinged tow attachment ball head motor -V317-   21 10     22 11     23 Trailer socket -U10- 12 Trailer socket -U10- 24 Trailer socket -U10- -T6bz- (B) Designation   -T10bg- (C) Designation   -T10bf- (D) Designation 1 Terminal 30, from fuse holder F -SF-   1 Terminal 15, from B281 positive connection 5 (15a) in main wiring harness Fuse holder F -SF-   1 Electric hinged tow coupling attachment button -E474- 2 Terminal 31, to 733 earth point 3 on left in luggage compartment   2 Terminal 54   2 Electric hinged tow coupling attachment button -E474- 3 Terminal 30, from fuse holder F -SF-   3 Convenience CAN bus, high B397 connection 1 (convenience CAN bus, high) in main wiring harness Wiring junction for convenience CAN bus, high -TV34-   3 Electric hinged tow coupling attachment button -E474- 4 Terminal 30, from fuse holder F -SF-   4 Convenience CAN bus, low B406 connection 1 (convenience CAN bus, low) in main wiring harness Wiring junction for convenience CAN bus, low -TV38-   4 Electric hinged tow coupling attachment button -E474- 5 Terminal 30, from fuse holder F -SF-   5   5   6 Terminal 30, from fuse holder F -SF-   6   6       7   7 Retracting tow ball coupling warning lamp -K212-     8   8 Extending tow ball coupling warning lamp -K211-     9   9       10   10   Back to overview . AUDI A8 2012 Fitting location, reversing camera system control unit J772 , up to model year 2013 Connectors 1 -  54-pin connector -T54a-, black 2 -  2-pin connector -T2ae-, green, control unit 1 for information electronics -J794- 3 -  2-pin connector -T2af-, blue, reversing camera -R189- Back to overview . AUDI A8 2012 Fitting location, reversing camera system control unit J772 , from model year 2014 Unlock Lifetime Access for This Car. 1 -  Reversing camera system control unit -J772- A -  20-pin connector -T20k-, red B -  2-pin connector -T2af-, grey, reversing camera -R189- C -  2-pin connector -T2ae-, green, control unit 1 for information electronics -J794- Connector assignment, reversing camera system control unit -J772-     -T20k- (A) Designation   -T20k- (A) Designation 1     11 Dash panel insert CAN bus, low Wiring junction for dash panel insert CAN bus, low -TV40- 2     12 Dash panel insert CAN bus, high Wiring junction for dash panel insert CAN bus, high -TV36- 3     13 4     14 5     15 6     16 7     17 8     18 9 Reversing camera -R189-   19 Reversing camera -R189- 10 Terminal 30, from fuse holder F -SF-   20 Terminal 31, to 733 earth point 3 on left in luggage compartment Back to overview . AUDI A8 2012 Fitting location, control unit for overhead view camera J928 , from model year 2014 Fitting location, control unit for overhead view camera -J928-, from model year 2014 Fitting location On left in luggage compartment, on rear panel -1-.     Unlock Lifetime Access for This Car. 1 -  Control unit for overhead view camera -J928- B -  5-pin connector -T5bc-, from front overhead view camera -R243- D -  5-pin connector -T5ba-, from left overhead view camera -R244- F -  18-pin connector -T18c- Connector assignment, control unit for overhead view camera -J928-     -T18c- (F) Designation   -T18c- (F) Designation 1 Terminal 30, from fuse holder F -SF-   10 Convenience CAN bus, low Wiring junction for convenience CAN bus, low -TV40- 2 Convenience CAN bus, high Wiring junction for convenience CAN bus, high -TV36-   11   3     12 Terminal 31, to 733 earth point 3 on left in luggage compartment 4     13 5     14 6     15 7     16 8     17 9     18 Back to overview . AUDI A8 2012 Fitting location, digital sound package control unit J525 , BOSE, from model year 2014 1 -  Digital sound package control unit -J525- B -  18-pin connector -T18d- C -  38-pin connector -T38- Connector assignment, digital sound package control unit -J525-     -T18d- (B) Designation   -T38- (C) Designation   -T38- (C) Designation 1     1 Terminal 30, from fuse holder F -SF-   20 Front right mid-range loudspeaker -R104- 2     2 Terminal 31, to 733 earth point 3 on left in luggage compartment   21 Front right treble loudspeaker -R22- 3     3 Rear right mid-range and bass loudspeaker -R160- Rear right treble loudspeaker -R16-   22 Front left treble loudspeaker -R20- 4     4 Front left bass loudspeaker -R21-   23   5     5 Subwoofer -R211-   24 6 Rear left microphone -R144- 6   25 Ring break diagnostic cable B444 connection 1 (diagnosis) in main wiring harness Data bus diagnostic interface -J533- 7 Rear left microphone -R144- 7 Front left mid-range loudspeaker -R103-   26   8 Rear right microphone -R145- 8 Front right mid-range loudspeaker -R104-   27   9 Rear right microphone -R145- 9 Front right treble loudspeaker -R22-   28 Screen earth 10 Engine control unit -J623-   10 Front left treble loudspeaker -R20- 29 Internal microphone -R74- 11 Engine control unit -J623- Power unit mounting control unit -J931- 11 Front right bass loudspeaker -R23-   30 Internal microphone -R74- 12     12 Front right bass loudspeaker -R23-   31 Centre loudspeaker -R208- 13 Centre right microphone -R143- 13 Rear left mid-range and bass loudspeaker -R159- Rear left treble loudspeaker -R14-   32 Centre loudspeaker -R208- 14 Centre right microphone -R143- 14 Rear left mid-range and bass loudspeaker -R159- Rear left treble loudspeaker -R14-   33 Left effect loudspeaker -R209- 15     15 Rear right mid-range and bass loudspeaker -R160- Rear right treble loudspeaker -R16-   34 Left effect loudspeaker -R209- 16 Centre left microphone -R142- 16 Front left bass loudspeaker -R21-   35   17 Centre left microphone -R142- 17 Subwoofer -R211-   36 18     18   37 Right effect loudspeaker -R210-     19 Front left mid-range loudspeaker -R103-   38 Right effect loudspeaker -R210- Back to overview . AUDI A8 2012 Fitting location, digital sound package control unit J525 , Bang & Olufsen, from model year 2014 1 -  Digital sound package control unit -J525- A -  2-pin connector -T2co-, MOST bus, black B -  32-pin connector -T32h- C -  38-pin connector -T38- Connector assignment, digital sound package control unit -J525-     -T32h- (B) Designation   -T38- (C) Designation 1 Digital sound package control unit 2 -J787-   1 Terminal 30, from fuse holder F -SF- 2 Digital sound package control unit 2 -J787-   2 Terminal 31, to 733 earth point 3 on left in luggage compartment 3 Digital sound package control unit 2 -J787-   3 Front left mid-range loudspeaker -R103- 4 Digital sound package control unit 2 -J787-   4 Front right mid-range loudspeaker -R104- 5 Digital sound package control unit 2 -J787-   5 Rear left mid-range loudspeaker -R105- 6 Centre left microphone -R142- 6 Rear right mid-range loudspeaker -R106- 7 Centre right microphone -R143- 7 Centre loudspeaker -R208- 8 Rear left microphone -R144- 8 Centre loudspeaker 2 -R219- 9 Internal microphone -R74-   9 Rear left treble loudspeaker 2 -R217- 10 Rear right microphone -R145- 10 Rear right treble loudspeaker 2 -R218- 11 Screen earth   11 12 Engine control unit -J623- Power unit mounting control unit -J931- 12 13     13 14 Digital sound package control unit 2 -J787-   14 15     15 Front left mid-range loudspeaker -R103- 16 Digital sound package control unit 2 -J787-   16 Front right mid-range loudspeaker -R104- 17 Digital sound package control unit 2 -J787-   17 Rear left mid-range loudspeaker -R105- 18 Digital sound package control unit 2 -J787-   18 Rear right mid-range loudspeaker -R106- 19 Digital sound package control unit 2 -J787-   19 Centre loudspeaker -R208- 20 Digital sound package control unit 2 -J787-   20 Centre loudspeaker 2 -R219- 21 Digital sound package control unit 2 -J787-   21 Rear left treble loudspeaker 2 -R217- 22 Centre left microphone -R142- 22 Rear right treble loudspeaker 2 -R218- 23 Centre right microphone -R143- 23 Front left treble loudspeaker -R20- 24 Rear left microphone -R144- 24 Front right treble loudspeaker -R22- 25 Internal microphone -R74-   25 Rear left treble loudspeaker -R14- 26 Rear right microphone -R145- 26 Rear right treble loudspeaker -R16- 27     27 Left effect loudspeaker -R209- 28 Terminal 31, to 733 earth point 3 on left in luggage compartment   28 Right effect loudspeaker -R210- 29 Ring break diagnostic cable B444 connection 1 (diagnosis) in main wiring harness Data bus diagnostic interface -J533-   29 30 Digital sound package control unit 2 -J787-   30 31     31 Front left treble loudspeaker -R20- 32 Digital sound package control unit 2 -J787-   32 Front right treble loudspeaker -R22-     33 Rear left treble loudspeaker -R14-     34 Rear right treble loudspeaker -R16-     35 Left effect loudspeaker -R209-     36 Right effect loudspeaker -R210-     37     38 Back to overview . AUDI A8 2012 Fitting location, digital sound package control unit 2 J787 , Bang & Olufsen, from model year 2014 1 -  Digital sound package control unit 2 -J787- A -  32-pin connector -T32g- Connector assignment, digital sound package control unit 2 -J787-     -T32g- (A) Designation   -T32g- (A) Designation 1 Terminal 30, from fuse holder F -SF-   17 Front left bass loudspeaker -R21- 2 Terminal 31, to 733 earth point 3 on left in luggage compartment   18 Control motor for front left treble speaker -V344- 3 Front right bass loudspeaker -R23- 19 Control motor for front right treble speaker -V345- 4 Front right bass loudspeaker -R23- 20 Digital sound package control unit -J525- 5 Front left bass loudspeaker -R21- 21 Control motor for front right treble speaker -V345- 6 Control motor for front left treble speaker -V344-   22 Control motor for front right treble speaker -V345- 7 Control motor for front left treble speaker -V344-   23 Digital sound package control unit -J525- 8 Digital sound package control unit -J525-   24 Digital sound package control unit -J525- 9 Digital sound package control unit -J525-   25 Digital sound package control unit -J525- 10 Digital sound package control unit -J525-   26 Digital sound package control unit -J525- 11 Digital sound package control unit -J525-   27 Digital sound package control unit -J525- 12 Digital sound package control unit -J525-   28 Rear right bass loudspeaker -R17- 13 Digital sound package control unit -J525-   29 Rear right bass loudspeaker -R17- 14 Digital sound package control unit -J525-   30 Digital sound package control unit -J525- 15 Subwoofer -R211-   31 Rear left bass loudspeaker -R15- 16 Subwoofer -R211-   32 Rear left bass loudspeaker -R15- Back to overview . AUDI A8 2012 Fitting location, TV tuner R78 , from model year 2014 1 -  TV tuner -R78- B -  4-pin connector -T4hw-, aerial amplifier 2 -R111-, aerial amplifier 4 -R113- D -  2-pin connector -T2cn-, MOST bus, black E -  12-pin connector -T12av- Connector assignment, TV tuner -R78-     -T12av- (E) Designation   -T12av- (E) Designation 1 Terminal 30, from fuse holder F -SF-   7 2 Terminal 31, to 733 earth point 3 on left in luggage compartment   8 3 Ring break diagnostic cable B444 connection 1 (diagnosis) in main wiring harness Data bus diagnostic interface -J533-   9 4 Control unit 2 for information electronics -J829-   10   5 Control unit 2 for information electronics -J829-   11   6     12 Back to overview . AUDI A8 2012 Fitting location, sunroof roller blind control unit J394 / sunroof roller blind control unit 2 J867 , panoramic sunroof Fitting location, sunroof roller blind control unit -J394-/sunroof roller blind control unit 2 -J867-, panoramic sunroof Fitting location In centre of roof -1 and 2-.     Unlock Lifetime Access for This Car. 1 -  Sunroof roller blind control unit 2 -J867- 2 -  Sunroof roller blind control unit -J394- q   with sunroof roller blind motor -V260- B -  16-pin connector -T16w- Connector assignment, sunroof roller blind control unit -J394-/sunroof roller blind control unit 2 -J867-     -T16v- (A) Designation   -T16w- (B) Designation 1 Terminal 30, from B250 positive connection in roof wiring harness Fuse holder C -SC-   1 Terminal 30, from B250 positive connection in roof wiring harness Fuse holder C -SC- 2 Terminal 31, to 178 earth connection in sliding sunroof wiring harness 689 earth point at front centre of roof   2 Terminal 31, to 178 earth connection in sliding sunroof wiring harness 689 earth point at front centre of roof 3 Terminal 31, to 178 earth connection in sliding sunroof wiring harness 689 earth point at front centre of roof   3 Terminal 31, to 178 earth connection in sliding sunroof wiring harness 689 earth point at front centre of roof 4     4 5     5 6     6 7     7 8     8 9     9 10 Button 1 for roof roller blind -E584- 10 Button 2 for roof roller blind -E585- 11 Sliding sunroof adjustment control unit -J245- 11 Sliding sunroof adjustment control unit -J245- 12     12 13 LIN bus, B577 connection (LIN bus) in roof wiring harness B528 connection 1 (LIN bus) in main wiring harness B698 connection 3 (LIN bus) in main wiring harness Convenience system central control unit -J393-   13 LIN bus, B577 connection (LIN bus) in roof wiring harness B528 connection 1 (LIN bus) in main wiring harness B698 connection 3 (LIN bus) in main wiring harness Convenience system central control unit -J393- 14 Sliding sunroof adjustment control unit -J245- 14 Sliding sunroof adjustment control unit -J245- 15     15 16     16 Terminal 31, to 178 earth connection in sliding sunroof wiring harness 689 earth point at front centre of roof Back to overview . AUDI A8 2012 Fitting location, rear sliding sunroof control unit J392 / rear sliding sunroof motor V146 , panoramic sunroof 1 -  Rear sliding sunroof control unit -J392- q   with rear sliding sunroof motor -V146- A -  16-pin connector -T16x- Connector assignment, rear sliding sunroof control unit -J392-     -T16x- (A) Designation   -T16x- (A) Designation 1 Terminal 30, from suppression filter -C24- Fuse holder C -SC-   9 2 Terminal 31, to 431 earth connection 2 in roof wiring harness Suppression filter -C24- 178 earth connection in sliding sunroof wiring harness 689 earth point at front centre of roof   10 Sunroof button -E325- 3     11 Sunroof button -E325- 4     12 5     13 LIN bus, B577 connection (LIN bus) in roof wiring harness B528 connection 1 (LIN bus) in main wiring harness B698 connection 3 (LIN bus) in main wiring harness Convenience system central control unit -J393- 6     14 Sunroof button -E325- 7     15 8     16 Terminal 31, to 431 earth connection 2 in roof wiring harness Suppression filter -C24- 178 earth connection in sliding sunroof wiring harness 689 earth point at front centre of roof Back to overview . AUDI A8 2012 Fitting location, operating and display unit for rear air conditioning system E265 Fitting location, operating and display unit for rear air conditioning system -E265- Fitting location At rear of centre console -1-.     Unlock Lifetime Access for This Car. 1 -  Operating and display unit for rear air conditioning system -E265- q   with heated rear left seat switch with regulator -E128-, heated rear right seat switch with regulator -E129- B -  20-pin connector -T20h- Connector assignment, operating and display unit for rear air conditioning system -E265-     -T3bb- (A) Designation   -T20h- (B) Designation   -T20h- (B) Designation 1 Heated bench seat cushion for rear left seat -Z10- 1 LIN bus, B711 connection 6 (LIN bus) in main wiring harness Control unit for air ionisation system -J897- Rear right temperature flap control motor -V314-   11 Earth for control motors, 257 earth connection 2 in Climatronic wiring harness 2 Terminal 30, from fuse holder F -SF-   2 Dash panel insert CAN bus, high Wiring junction for dash panel insert CAN bus, high -TV36- 12 3 Heated bench seat cushion for rear right seat -Z12- 3 Dash panel insert CAN bus, low Wiring junction for dash panel insert CAN bus, low -TV40- 13     4 Rear left chest vent temperature sender -G635-   14 Rear right chest vent temperature sender -G636-     5   15       6 Sender earth, 411 earth connection 2 (sender earth) in main wiring harness 433 earth connection 2 (sender earth) in Climatronic wiring harness   16 Rear right seat temperature sensor -G95-     7   17 Rear left seat temperature sensor -G94-     8 Vent temperature sender for rear left footwell -G637-   18       9 Vent temperature sender for rear right footwell -G638-   19 Terminal 30, from fuse holder F -SF-     10 Voltage supply to control motors L9 connection 1 in air conditioning system wiring harness 20 Terminal 31, to 387 earth connection 22 in main wiring harness 688 earth point 2 on centre tunnel Back to overview . AUDI A8 2012 Fitting location, radio R , from model year 2014 Fitting location, radio -R-, from model year 2014 Fitting location In luggage compartment in left luggage compartment recess -1-.     Unlock Lifetime Access for This Car. 1 -  Radio -R- B -  2-pin connector -T2dd-, digital radio aerial -R183-, satellite aerial -R170- USA only E -  10-pin connector -T10h- H -  8-pin connector -T8c-, loudspeaker outputs Connector assignment, radio -R-     -T8c- (H) Designation   -T4ah- (C) Designation 1 Rear right mid-range and bass loudspeaker -R160-, rear right treble loudspeaker -R16-   1 Aerial amplifier 2 -R111- 2 Front right bass loudspeaker -R23-, front right treble loudspeaker -R22- 2 Screen earth 3 Front left bass loudspeaker -R21-, front left treble loudspeaker -R20- 3 Aerial amplifier -R24- 4 Rear left mid-range and bass loudspeaker -R159-, rear left treble loudspeaker -R14-   4 Screen earth 5 Rear right mid-range and bass loudspeaker -R160-, rear right treble loudspeaker -R16-       6 Front right bass loudspeaker -R23-, front right treble loudspeaker -R22-   7 Front left bass loudspeaker -R21-, front left treble loudspeaker -R20-   8 Rear left mid-range and bass loudspeaker -R159-, rear left treble loudspeaker -R14-     -T12u- (F) Designation   -T10h- (E) Designation 29 Multimedia system operating unit 2 -E499-, headphone output, RSE   9 Subwoofer -R211- 30     10 Centre loudspeaker -R208- 31 Multimedia system operating unit 2 -E499-, headphone output, RSE   11 Ring break diagnostic cable B444 connection 1 (diagnosis) in main wiring harness Data bus diagnostic interface -J533- 32     12 33     13 Subwoofer -R211- 34 Multimedia system operating unit 2 -E499-, headphone output, RSE   14 Centre loudspeaker -R208- 35 Multimedia system operating unit 2 -E499-, headphone output, RSE   15   36 Multimedia system operating unit 2 -E499-, headphone output, RSE   16   37 Multimedia system operating unit 2 -E499-, headphone output, RSE   41 Terminal 31, to 391 earth connection 26 in main wiring harness 675 earth point 2 on right in luggage compartment 38 Multimedia system operating unit 2 -E499-, headphone output, RSE   42 Terminal 30, from fuse holder F -SF- Voltage stabilizer -J532- 39 Multimedia system operating unit 2 -E499-, headphone output, RSE     40 Multimedia system operating unit 2 -E499-, headphone output, RSE     Back to overview . AUDI A8 2012 Fitting location, reducing agent metering system control unit J880 Fitting location, reducing agent metering system control unit -J880- Fitting location     On left in luggage compartment above reducing-agent tank -1-. Connectors   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  Control unit for reducing agent metering system -J880- 2 -  28-pin connector -T28a-, black Back to overview . AUDI A8 2012 Fitting location, control unit for NOx sender 2 J881 Fitting location, control unit for NOx sender 2 -J881- Fitting location On vehicle floor, under rear seat bench on left -1-.     Unlock Lifetime Access for This Car. 1 -  Control unit for NOx sender 2 -J881-, V8 TDI A -  5-pin connector -T5aw- Connector assignment, control unit for NOx sender 2 -J881-     -T5aw- (A) Designation 1 Terminal 30, from B326 positive connection 12 (30a) in main wiring harness Fuse holder A -SA- 2 Terminal 31, to 368 earth connection 3 in main wiring harness 369 earth connection 4 in main wiring harness 34 earth point under driver seat 3 CAN bus, low B394 connection 5 (powertrain bus, low) in main wiring harness Engine control unit -J623- 4 CAN bus, high B387 connection 5 (powertrain bus, high) in main wiring harness Engine control unit -J623- 5 Terminal 31, to 368 earth connection 3 in main wiring harness 369 earth connection 4 in main wiring harness 34 earth point under driver seat Back to overview . AUDI A8 2012 Fitting location, power latching control unit J657 Unlock Lifetime Access for This Car. A -  Power latching control unit -J657- q   with power latching system limit switch, luggage compartment locked -F333-, power latching system limit switch, luggage compartment unlocked -F332-, power latching motor for rear lid -V382- 1 -  5-pin connector -T5z-, black Back to overview . AUDI A8 2012 Fitting location, lane change assist control unit J769 Unlock Lifetime Access for This Car. A -  Lane change assist control unit -J769- 1 -  12-pin connector -T12m-, black Back to overview . AUDI A8 2012 Fitting location, lane change assist control unit 2 J770 Unlock Lifetime Access for This Car. A -  Lane change assist control unit 2 -J770- 1 -  12-pin connector -T12n-, black Back to overview . AUDI A8 2012 Fitting location, battery monitor control unit J367 1 -  Battery -A- 2 -  Battery positive connection 3 -  2-pin connector -T2s-, yellow 4 -  Battery monitor control unit -J367- Back to overview . AUDI A8 2012 Fitting location, fuel pump control unit J538 Unlock Lifetime Access for This Car. A -  12-pin connector -T12s-, black B -  Fuel pump control unit -J538- Back to overview . AUDI A8 2012 Fitting location, Control unit for fuel tank leak detection J909 A -  5-pin connector -T5p-, black B -  Control unit for fuel tank leak detection -J909- Back to overview .     AUDI A8 2012 Overview of control units, high-voltage models Overview of control units, high-voltage models Unlock Lifetime Access for This Car. Drive battery -A2- q   Components: -J840-, -A38-, -TW-, -TV44-, -AX1-, -S350-, -P1-, -P2-, -PX1- q   Fitting location and connectors Battery cooling module for high-voltage system q   Components: -G756-, -G757-, -N516-, -V457-, -V479-, -V480- q   Fitting location and connectors Second battery -A1- for high-voltage system q   Components: -J934- q   Fitting location and connectors AUDI A8 2012 Fitting location, electrical air conditioner compressor V470 Fitting location, electrical air conditioner compressor -V470- Fitting location On left of engine block -2-.     Unlock Lifetime Access for This Car. 3 -  4-pin connector -T4ii-, high-voltage wire for electrical air conditioner compressor -P3- Back to overview . AUDI A8 2012 Fitting location, power and control electronics for electric drive JX1 A -  Power and control electronics for electric drive -JX1- Internal components: Electric drive control unit -J841-, DC/AC converter for drive motor -A37-, voltage converter -A19-, intermediate circuit capacitor 1 -C25- A2 -  1-pin connector -T1y-, high-voltage wire for hybrid battery, positive terminal -P1- A4 -  1-pin connector -T1u-, high-voltage wire 3 for drive motor -P6- A6 -  1-pin connector -T1s-, high-voltage wire 1 for drive motor -P4- A7 -  28-pin connector -T28b-, black Back to overview . AUDI A8 2012 Fitting location, electric drive motor V141 A -  Electric drive motor -V141- Internal components: Three-phase current drive -VX54-, drive motor temperature sender -G712- A2 -  1-pin connector -T1v-, high-voltage wire 1 for drive motor -P4- A4 -  1-pin connector -T1x-, high-voltage wire 3 for drive motor -P6- A5 -  2-pin connector -T2ql-, black Back to overview . AUDI A8 2012 Fitting location, drive battery A2 Fitting location, drive battery -A2- Fitting location Under boot lid -A-.     Unlock Lifetime Access for This Car. A -  Drive battery -A2- Internal components: Hybrid battery unit -AX1-, battery regulation control unit -J840-, hybrid battery -A38- A2 -  14-pin connector -T14m-, black A4 -  1-pin connector -T1aa-, high-voltage wire for hybrid battery, positive terminal -P1- A5 -  Plug position for maintenance connector for high-voltage system -TW- A6 -  Maintenance connector for high-voltage system -TW- with high-voltage system fuse -S350- A7 -  Safety connector 1 -TV44- Back to overview . AUDI A8 2012 Fitting location, battery cooling module for high-voltage system Fitting location, battery cooling module for high-voltage system Fitting location Under boot lid -1-.     Unlock Lifetime Access for This Car. 1 -  Battery cooling module for high-voltage system Components: t  Temperature sensor before evaporator for hybrid battery -G756- t  Temperature sensor after evaporator for hybrid battery -G757- t  Refrigerant shot-off valve 1 for hybrid battery -N516- t  Battery fan 1 -V457- t  Air recirculation flap 1 control motor for hybrid battery -V479- t  Air recirculation flap 2 control motor for hybrid battery -V480- Back to overview . AUDI A8 2012 Fitting location, wiring junction TV1 for high-voltage system Fitting location, wiring junction -TV1- for high-voltage system Fitting location Under boot lid, on right next to battery -A-.     Unlock Lifetime Access for This Car. A -  Wiring/connections to battery -A- B -  Vehicle starter battery switch-over relay -J580- H1 -  2-pin connector -T2qp-, black Back to overview . AUDI A8 2012 Fitting location, second battery A1 for high-voltage system 1 -  Second battery -A1- 2 -  Battery positive 3 -  Battery monitor control unit 2 -J934- 4 -  2-pin connector -T2qq-, yellow Back to overview .     AUDI A8 2012 Overview of coupling stations Overview of coupling stations Unlock Lifetime Access for This Car. Coupling station on right of A-pillar q   left-hand drive only q   Connectors: -T6as-, -T17k- q   Location and connectors Coupling point on front right door q   Connectors: -T23b-, -T5au- q   Location and connectors Coupling station under right front seat q   Connectors: -T3f-, -T4ev-, -T4ew-, -T6q-, -T10a-, -T17r- q   Location and connectors Rear bumper coupling point q   Connectors: -T10d-, -T10e- q   Location and connectors Coupling point on high-voltage vehicle air conditioner q   Connectors: -T14l-, -T2qn- q   Location and connector Coupling station under centre console, front left q   Connectors: -T5r-, -T17i- q   Location and connectors Coupling point on front left door q   Connectors: -T23a-, -T5at- q   Location and connectors 17 -  Coupling station on left A-pillar q   Right-hand drive vehicles only q   Connectors: -T6as-, -T17k- q   Location and connectors Coupling station on 7-slot relay carrier q   Connectors: -T6n-, -T17m-, -T17l-, -T17p- q   Location and connectors, left-hand drive models q   Location and pin connectors, right-hand drive models Front left bumper couplings q   Connectors: -T4h-, -T5e- q   Location and connector AUDI A8 2012 Coupling station, electronics box in engine compartment Coupling station, electronics box in engine compartment Fitting location     in engine compartment, right -1-. Connectors:   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 4 -  Vacant 5 -  17-pin connector -T17h-, red 6 -  17-pin connector -T17g-, brown 7 -  17-pin connector -T17f-, black Back to overview . AUDI A8 2012 Coupling station on right of A-pillar Coupling station on right of A-pillar Fitting location     on lower section of right A-pillar -1-. Connectors:   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 1 -  17-pin connector -T17k-, blue 2 -  6-pin, connector -T6as-, black Back to overview . AUDI A8 2012 Coupling station under right front seat Coupling station under right front seat Fitting location     under right front seat -2-. Connectors:   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 1 -  6-pin, connector -T6q-, green 2 -  17-pin connector -T17r-, red 3 -  10-pin connector -T10a-, black 4 -  4-pin connector -T4ev-, black 5 -  3-pin connector -T3f-, yellow 6 -  Vacant 7 -  4-pin connector -T4ew-, black 8 -  Vacant 9 -  Vacant 10 -  Vacant Back to overview . AUDI A8 2012 Coupling station under right rear seat Coupling station under right rear seat Fitting location     under right rear seat, right -1-. Connectors:   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 1 -  17-pin connector -T17t-, red 1 -  6-pin, connector -T6aa-, green 2 -  3-pin connector -T3h-, yellow Back to overview . AUDI A8 2012 CAN disconnector on relay and fuse carrier, on right in luggage compartment CAN disconnector on relay and fuse carrier, on right in luggage compartment Fitting location     on right in luggage compartment, on rear panel -2-. Connector up to model year 2013   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. G -  46-pin connector -T46-, black, CAN disconnector Connector assignment, from model year 2014     Unlock Lifetime Access for This Car. G -  46-pin connector -T46-, black, CAN disconnector Back to overview . AUDI A8 2012 Coupling station under left rear seat Coupling station under left rear seat Fitting location     on left under left rear seat -3-. Connectors:   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 1 -  17-pin connector -T17s-, red 1 -  6-pin, connector -T6ab-, green 2 -  3-pin connector -T3g-, yellow Back to overview . AUDI A8 2012 Coupling station under centre rear seat Coupling station under centre rear seat Fitting location     under centre rear seat -2- Connectors:   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 1 -  17-pin connector -T17v-, red 2 -  17-pin connector -T17u-, brown 3 -  17-pin connector -T17w-, black Back to overview . AUDI A8 2012 Coupling station under left front seat Coupling station under left front seat Fitting location     under left front seat -1- Connectors:   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 1 -  6-pin, connector -T6p-, green 2 -  17-pin connector -T17q-, red 3 -  10-pin connector -T10-, black 4 -  4-pin connector -T4ex-, black 5 -  3-pin connector -T3e-, yellow 6 -  Vacant 7 -  4-pin connector -T4eu-, black 8 -  Vacant 9 -  Vacant 10 -  Vacant Back to overview . AUDI A8 2012 Coupling station under centre console, front left Coupling station under centre console, front left Fitting location     under centre console, front left -1-. Connectors:   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 1 -  17-pin connector -T17i-, white 2 -  5-pin connector -T5r-, black 3 -  Vacant Back to overview . AUDI A8 2012 Coupling station under centre console, front right Coupling station under centre console, front right Fitting location     under centre console, front right -2-. Connectors:   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. 1 -  17-pin connector -T17n-, grey 2 -  3-pin connector -T3am-, black 3 -  2-pin connector -T2gc-, black Back to overview . AUDI A8 2012 Coupling station on left A-pillar Coupling station on left A-pillar Fitting location on lower section of left A-pillar. Connectors:     Unlock Lifetime Access for This Car. 1 -  17-pin connector -T17k-, blue 2 -  6-pin, connector -T6as-, black Back to overview . AUDI A8 2012 Tow hitch preparation USA Tow hitch preparation USA Fitting location On sill panel, near lower part of left B-pillar.     Connectors: 1 -  2-pin connector -T2nl-, black 2 -  2-pin connector -T2nl-, black 2-pin connector -T2nl-Not connected in delivery condition. Back to overview . AUDI A8 2012 Coupling station on 7-slot relay carrier, left-hand drive models Coupling station on 7-slot relay carrier, left-hand drive models Fitting location behind dash panel on driver side. Connectors:   Unlock Lifetime Access for This Car. Unlock Lifetime Access for This Car. A -  7-pin relay carrier on onboard supply control unit -J519- 2 -  17-pin connector -T17m-, brown 3 -  17-pin connector -T17l-, black 4 -  17-pin connector -T17p-, white 5 -  6-pin, connector -T6n-, black Back to overview . AUDI A8 2012 Coupling station on 7-slot relay carrier, right-hand drive models Coupling station on 7-slot relay carrier, right-hand drive models Fitting location behind dash panel on driver side. Connectors:     Unlock Lifetime Access for This Car. A -  7-pin relay carrier on onboard supply control unit -J519- 1 -  17-pin connector -T17p-, white 3 -  17-pin connector -T17m-, brown 4 -  17-pin connector -T17l-, black Back to overview . AUDI A8 2012 Coupling point in engine compartment, left Coupling point in engine compartment, left Fitting location On left in plenum chamber, near suspension turret. Connectors:     Unlock Lifetime Access for This Car. 1 -  8-pin connector -T8ap-, black 2 -  10-pin connector -T10ax-, black, models with V8 TFSI only 3 -  14-pin connector -T14b-, black Back to overview . AUDI A8 2012 Rear bumper coupling point Rear bumper coupling point Fitting location Behind bumper trim, right. Connectors:     Unlock Lifetime Access for This Car. 1 -  10-pin connector -T10e-, black 2 -  10-pin connector -T10d-, black Back to overview . AUDI A8 2012 Front bumper coupling point Front bumper coupling point Fitting location Behind radiator grille, centre. Connector     Unlock Lifetime Access for This Car. 1 -  14-pin connector -T14a-, black Back to overview . AUDI A8 2012 Coupling point on rear left door Coupling point on rear left door Fitting location In left B-pillar. Connector     Unlock Lifetime Access for This Car. A -  27-pin connector -T27d- Back to overview . AUDI A8 2012 Coupling point on rear right door Coupling point on rear right door Fitting location In right B-pillar. Connector     Unlock Lifetime Access for This Car. A -  27-pin connector -T27c- Back to overview . AUDI A8 2012 Coupling point on front left door Coupling point on front left door Fitting location In left A-pillar Connector     Unlock Lifetime Access for This Car. A -  23-pin connector -T23a- B -  5-pin connector -T5at-, Connection Left overhead view camera -R244- Back to overview . AUDI A8 2012 Coupling point on front right door Coupling point on front right door Fitting location In right A-pillar. Connector     Unlock Lifetime Access for This Car. A -  23-pin connector -T23b- B -  5-pin connector -T5au-, Connection Right overhead view camera -R245- Back to overview . AUDI A8 2012 Coupling point, glove compartment Coupling point, glove compartment Fitting location behind glove compartment. Connector     Unlock Lifetime Access for This Car. A -  8-pin connector -T8f- Back to overview . AUDI A8 2012 Coupling point, centre console Coupling point, centre console Fitting location under centre console, near multimedia system operating unit -E380- right Connector     Unlock Lifetime Access for This Car. A -  17-pin connector -T17o- Back to overview . AUDI A8 2012 Coupling point on high-voltage vehicle air conditioner Coupling point on high-voltage vehicle air conditioner Fitting location In luggage compartment on air conditioning unit for hybrid battery unit -AX1-. Connector     Unlock Lifetime Access for This Car. 1 -  Air conditioning unit for hybrid battery unit -AX1- A -  14-pin connector -T14l- B -  2-pin connector -T2qn- Back to overview . AUDI A8 2012 Diagnostic connection Diagnostic connection Fitting location under the shelf on the driver's side Connector     Unlock Lifetime Access for This Car. A -  16-pin connector -T16- Back to overview . AUDI A8 2012 Front left bumper couplings Front left bumper couplings Fitting location On upper left behind bumper trim. Connector     Unlock Lifetime Access for This Car. A -  4-pin connector -T4h- B -  5-pin connector -T5e- Back to overview .     Can't find your car? Check -> DiagnostData.com! Login Email or Login Password Remember me Sign up Get a new password Sign up Email Password Confirm password * A password will be generated automatically and sent to your Email Login Get a new password Get a new password Email Login Sign up