AUDI A8 2003 – Electric seat adjustment with memory function (driver’s seat), electrically heated driver’s seat with seat ventilation . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A8 2003 - Driver’s seat - seat adjustment with memory control unit - fuses

J136	Seat adjustment with memory control unit
S44	Seat adjustment thermo-fuse 1
S45	Seat adjustment thermo-fuse 2
S133	Fuse 3, 150 A, in luggage compartment, rear right
T17s	17-pin connector, brown, under driver's seat
T20a	20-pin connector, black, A pillar, left
T46a	46-pin connector, black, CAN separating connector, left
95	Earth connection -1-, in seat adjustment wiring harness
367	Earth connection -2-, in main wiring harness
B298	Positive (+) connection -2- (30), in main wiring harness
B302	Positive (+) connection -6- (30), in main wiring harness
B303	Positive (+) connection -7- (30), in main wiring harness
•	CAN bus (data wire)

Wiring Diagram AUDI A8 2003 - Driver’s seat - seat adjustment with memory control unit - seat adjustment buttons - head restraint adjustment switch - backrest adjustment button

E155	Head restraint adjustment switch
E350	Seat depth adjustment button
E418	Seat longitudinal adjustment button
E421	Rake adjustment button
E424	Seat height adjustment button
E425	Backrest adjustment button
J136	Seat adjustment with memory control unit
T12e	12-pin connector, in driver's seat
M10	Connection -1-, in seat adjustment wiring harness, driver's side

Wiring Diagram AUDI A8 2003 - Driver’s seat - seat adjustment with memory control unit - buttons for lumbar support adjustment and seat belt height adjustment

E332	Upper backrest adjustment button
E333	Seat belt height adjustment button
E335	Lumbar support height adjustment button
E336	Lumbar support longitudinal adjustment button
E337	Massage button
J136	Seat adjustment with memory control unit
T12e	12-pin connector, in driver's seat
*	Models with massage seat

Wiring Diagram AUDI A8 2003 - Seat adjustment with memory control unit - seat height adjustment motor (driver’s seat) - seat longitudinal adjustment motor - seat rake adjustment motor (driver’s seat)

J136	Seat adjustment with memory control unit
T8l	8-pin connector, black, under driver's seat
V243	Seat rake adjustment motor, driver's seat
V245	Seat height adjustment motor, driver's seat
V288	Seat longitudinal adjustment motor
M44	Connection 4, in driver's seat wiring harness

Wiring Diagram AUDI A8 2003 - Seat adjustment with memory control unit - head restraint adjustment motor (driver’s seat) - seat belt height adjustment motor - seat depth adjustment motor (driver)

G372	Seat belt height adjustment potentiometer
J136	Seat adjustment with memory control unit
T8n	8-pin connector, in driver's seat
T10o	10-pin connector, in driver's seat
T17s	17-pin connector, brown, under driver's seat
V103	Head restraint adjustment motor, driver's seat
V233	Seat belt height adjustment motor
V256	Seat depth adjustment motor, driver
M11	Connection -2-, in driver's seat adjustment wiring harness
*	Only applies to sports seats and comfort seats

Wiring Diagram AUDI A8 2003 - Seat adjustment with memory control unit - lumbar support longitudinal adjustment motor (driver’s seat) - upper backrest adjustment motor (driver) - backrest adjustment motor (driver’s seat) - lumbar support height adjustment motor for driver’s seat (with and

J136	Seat adjustment with memory control unit
T8n	8-pin connector, in driver's seat
T10o	10-pin connector, in driver's seat
V45	Backrest adjustment motor, driver's seat
V125	Lumbar support longitudinal adjustment motor, driver's seat
V129	Lumbar support height adjustment motor, driver's seat
V258	Upper backrest adjustment motor, driver
M12	Connection -3-, in driver's seat adjustment wiring harness
*	Lumbar support without massage function
**	Lumbar support with massage function

Wiring Diagram AUDI A8 2003 - Memory operating unit (driver’s seat) - emergency off button - door control unit (driver’s side)

E97	Memory operating unit, driver's seat
E190	Emergency-off button
J386	Door control unit, driver's side
T17p	17-pin connector, in driver's door
T20a	20-pin connector, black, A pillar, left
T46a	46-pin connector, black, CAN bus separating connector, left
304	Earth connection -3-, in door wiring harness - driver's side
404	Earth connection -4-, in door wiring harness - driver's side
R52	Connection (58s), in door wiring harness - driver's side
R65	Positive (+) connection (58s), in door wiring harness - driver's side
•	CAN bus (data wire)
*	Switch earth output

Wiring Diagram AUDI A8 2003 - Driver’s seat ventilation control unit

J255	Climatronic control unit
J672	Driver's seat ventilation control unit
J673	Front passenger's seat ventilation control unit
J680	Terminal 75 voltage supply relay -1-
S133	Fuse 3, 150 A, in luggage compartment, rear right
SC20	Fuse -20- on fuse box
SC35	Fuse -35- on fuse box
T17h	17-pin connector, grey, under driver's seat
T17i	17-pin connector, grey, under front passenger's seat
T17s	17-pin connector, brown, under driver's seat
T17t	17-pin connector, brown, under front passenger's seat
140	Earth connection -2-, in seat adjustment wiring harness
B272	Positive (+) connection (30), in main wiring harness
B303	Positive (+) connection -7- (30), in main wiring harness
B346	Connection -1- (75), in main wiring harness
B348	Connection -1- (75a), in main wiring harness
B468	Connection -4-, in main wiring harness

Wiring Diagram AUDI A8 2003 - Driver’s seat ventilation control unit - front seat fan - front seat backrest fan

J672	Driver's seat ventilation control unit
T7a	7-pin connector, in driver's seat
V268	Front seat fan
V269	Front seat backrest fan
140	Earth connection -2-, in seat adjustment wiring harness
M49	Connection -9-, in driver's seat wiring harness
M50	Connection -10-, in driver's seat wiring harness

Wiring Diagram AUDI A8 2003 - Driver’s seat ventilation control unit - heated driver’s seat cushion - driver’s seat lateral support heater - driver’s seat temperature sensor

G59	Driver's seat temperature sensor
J672	Driver's seat ventilation control unit
T6k	6-pin connector, in driver's seat
Z6	Heated driver's seat cushion
Z31	Driver's seat cushion lateral support heater
Z45	Front left heated seat
140	Earth connection -2-, in seat adjustment wiring harness
M42	Connection -2-, in driver's seat wiring harness
M46	Connection -6-, in driver's seat wiring harness
O12	Connection -1-, in seat heating wiring harness
O14	Connection -3-, in seat heating wiring harness

Wiring Diagram AUDI A8 2003 - Heated driver’s seat backrest - driver’s seat backrest lateral support heater

T4n	4-pin connector, in driver's seat backrest
T7a	7-pin connector, in driver's seat
Z7	Heated driver's seat backrest
Z32	Driver's seat backrest lateral support heater
140	Earth connection -2-, in seat adjustment wiring harness
M42	Connection -2-, in driver's seat wiring harness
M46	Connection -6-, in driver's seat wiring harness

AUDI A8 2003 Control units overview

Control units overview    

q	Connector assignment

4 -

q	Connector assignment

Roof electronics control unit -J528-

q	In front roof module

q

Location

Audi A8	Fitting Locations	No.  804 / 2

q	Connector assignment

q	Connector assignment

q	Connector assignment

q	Connector assignment

10 -

q	Connector assignment

q	Connector assignment

Audi A8	Fitting Locations	No.  804 / 3

q	Connector assignment, 20-pin connector -T20e-

17 -

q	Connector assignment

q	Connector assignment

-

Front information display and operating unit control unit -J523-    

Display unit for front information display and operating unit control unit -J685-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

Location: In centre dash panel -Item 1-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

Steering column electronics control unit -J527-    

Location: Near steering column, behind steering wheel Driver side door control unit -J386-, front passenger door control unit -J387-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

Connector assignment:    

Pin connector front door:

A -	32-pin connector (connector A), white

B -	16-pin connector (connector B), brown

C -	12-pin connector (connector C), black

D -	10-pin connector, black (connector D), black

Pin connector rear door:

A -

Vacant

B -	16-pin connector (connector A), brown

C -	12-pin connector (connector B), black

D -	10-pin connector (connector C), black

Power latching control unit for driver door -J760-, power latching control unit for front passenger door -J761-

6-pin connector, black

AUDI A8 2003 Onboard supply control unit 2 -J520-

Location:

Under carpet of the front passenger seat -arrow-

  Connector assignment:

A -	40-pin connector, on control unit

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

Roof electronics control unit -J528-    

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

Airbag control unit -J234-    

Location: On the front centre tunnel -Item 1-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

Connector assignment:

-	Airbag control unit -J234-

Connector:

A -	84-pin connector, yellow

q	up to model year 2004

-	75-pin connector, yellow

q	up to model year 2005

Seat and steering column adjustment control unit with memory -J136-    

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

Connector assignment:

A -	12-pin connector -connector ST5-, black

B -	12-pin connector -connector ST4-, black

C -	32-pin connector -connector ST6-, blue

D -	32-pin connector -connector ST7-, green

Entry and start authorisation control unit -J518-    

Location left-hand drive: Under carpet of the driver seat -arrow- Location right-hand drive: Under carpet of the front passenger seat -arrow-.

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

Connector assignment:

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

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

Onboard power supply control unit -J519-    

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

Connector assignment:

A -	32-pin connector, -T32a- (connector C), grey

B -	23-pin connector -T23- (connector B), black

C -	10-pin connector, -T10p- (connector A), black

Headlight range control, control unit -J431-    

Location: Behind dash panel insert

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

Connector assignment:

A -	26-pin connector, yellow

ABS control unit -J104-

Connector assignment:

A -	42-pin connector, black

Control unit in dash panel insert -J285-

Connector assignment:

A -	32 pin connector -T32-, blue

Wiper motor control unit -J400-    

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

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

Connector assignment:

A -	16-pin connector -T16c-, black

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

Connector assignment:

A -	20-pin connector -T20e-, black

Data bus diagnostic interface -J533-    

Adaptive suspension control unit -J197-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

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

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

Connector assignment:

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

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

AUDI A8 2003 Engine control unit -J623-, engine control unit 2 -J624-

Location:

Engine control unit -1- with electronics box -2- in plenum chamber

Engine control unit2 -J624-, installed under or next to engine control unit -J623-, depending on equipment

Adaptive cruise control unit -J428-

 

Location: Behind the front bumper, lower

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오.

Connector assignment:

A -	12-pin connector, black

Garage door operation control unit -J530-

Location:

Behind the front bumper, left

   

1 -	4-pin connector, black -T4bi-

2 -	Garage door operation control unit -J530-

3 -

Screw

AUDI A8 2003 Overview of fuses

Overview of fuses    

q	Position of fuses, left-hand drive

q	Position of fuses, right-hand drive

q	Position of fuses, right-hand drive

q	Position of fuses, right-hand drive

q	Position of fuses, left-hand drive

q	Position of fuses, right-hand drive

Audi A8	Fitting Locations	No.  802 / 2

Fuses (S) on main fuse carrier, right A-pillar

q	Position of fuses

Relay and fuse holder (S) in front right footwell

q	Position of fuses, left-hand drive

q	Position of fuses, right-hand drive

q	Position of fuses, from model year 2004

q	Position of fuses, right-hand drive

q	Position of fuses, from model year 2004

q	Position of fuses, right-hand drive

Location of fuses (SB)

Fuse colours

40A orange

30A green

25A white

20A yellow

15A blue

10A red

7.5A brown

5A beige

3A purple

1A black

Fuses in fuse holder, left dash panel

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SB1 - Fuse 1 on fuse holder B	5 A	-	J530 - Garage door operation control unit	15
2	-	SB2 - Fuse 2 on fuse holder B	10 A 5 A¹)	-	J446 - Parking aid control unit	30
3	-	SB3 - Fuse 3 on fuse holder B	5 A	-	J446 - Parking aid control unit	15
4	-	SB4 - Fuse 4 on fuse holder B	10 A	-	J431 - Headlight range control regulator V48 - Left headlight range control motor V49 - Right headlight range control motor	15
5	-	SB5 - Fuse 5 on fuse holder B	10 A 5 A¹)	-	J285 - Control unit with display in dash panel insert J533-Data bus diagnostic interface²)	30
6	-	SB6 - Fuse 6 on fuse holder B	10 A	-	J527 - Steering column electronics control unit	30
7	-	SB7 - Fuse 7 on fuse holder B	5 A	-	T16 - 16-pin connector, diagnostic connector	30
8	-	SB8 - Fuse 8 on fuse holder B	5 A	-	G266 - Oil level and oil temperature sender¹) T16 - Connector, 16-pin diagnostic connector	15
9	-	SB9 - Fuse 9 on fuse holder B	10 A 5 A¹)	-	J104 - ABS control unit J527 - Steering column electronics control unit	15
10	-	SB10 - Fuse 10 on fuse holder B	5 A	-	G266 - oil level and oil temperature sender²) J533 - Data bus diagnostic interface¹)	15
11	-	SB11 - Fuse 11 on fuse holder B	10 A		J759 - Lane departure warning control unit³)	15
12	-	SB12 - Fuse 12 on fuse holder B	5 A	-	F - Brake light switch	30

¹) from model year 2004 ²) up to model year 2003 ³) from September 2007

Audi A8	Fitting Locations	No.  802 / 6

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
25	-	SB25 - Fuse 25 on fuse holder B	40 A	-	J400 - Wiper motor control unit	30
26	-	SB26 - Fuse 26 on fuse holder B	15 A³) 30 A²)	-	J608 - Special vehicle control unit³) U18 - 12 V socket 2²) U19 - 12 V socket 3²)	30
27	-	SB27 - Fuse 27 on fuse holder B	25 A	-	J104 - ABS control unit	30
28	-	Vacant
29	-	SB29 - Fuse 29 on fuse holder B	1 A	-	- Switch illumination	58s
30	-	Vacant
31	-	SB31 - Fuse 31 on fuse holder B	30 A	-	J519 - Onboard power supply control unit	30
32	-	SB32 - Fuse 32 on fuse holder B	5 A⁵)	-	J685 - Display unit for front information display and operating unit control unit ⁵)	30
33	-	SB33 - Fuse 33 on fuse holder B	25 A	-	Z42-Rear left footwell heater element	75
34	-	Vacant
35	-	Vacant
36	-	SB36 - Fuse 36 on fuse holder B	5 A		J769 - Lane change assist control unit⁴)	15
37	-	SB37 - Fuse 37 on fuse holder B	15 A	-	J698 - Refrigerator box³)	15
38	-	SB38 - Fuse 38 on fuse holder B	30 A	-	J519 - Onboard power supply control unit	30
39	-	SB39 - Fuse 39 on fuse holder B	15 A 7.5 A¹)	-	J386 - Driver door control unit	30

¹) from model year 2004 ²) up to model year 2004 ³) from model year 2006 ⁴) from September 2007 ⁵) from September 2008

Audi A8	Fitting Locations	No.  802 / 8

Audi A8 Fitting Locations No.  802 / 9 No.   Current Flow Diagram designation Nominal value   Function/component Terminal 8 - SB8 - Fuse 8 on fuse holder B 10 A - J544 - Throttle valve module 2 J725 - Turbocharger 2 control unit N144 - Left electrohydraulic engine mounting solenoid valve N205 - Inlet camshaft control valve 1 N208 - Inlet camshaft control valve N213 - Exhaust gas recirculation valve 2 N321 - Exhaust flap 1 valve N382 - Torque rod valve V51 - Continued coolant circulation pump V275 - Intake manifold flap 2 motor 87 9 - SB9 - Fuse 9 on fuse holder B 5 A - J104 - ABS control unit J527 - Steering column electronics control unit 15 10 - SB10 - Fuse 10 on fuse holder B 10 A - J197 - Adaptive suspension control unit 15 11 - SB11 - Fuse 11 on fuse holder B 10 A - J759 - Lane departure warning control unit 15 12 - SB12 - Fuse 12 on fuse holder B 5 A 7.5 A¹) - J523 - Front information display and operating unit control unit J794 - Control unit for information electronics 1¹) 30 13 - SB13 - Fuse 13 on fuse holder B 10 A - J412 - Telephone operating electronics control unit J526 - Mobile telephone operating electronics control unit R36 - Telephone transmitter and receiver unit R115 - Chip card reader for telephone - Preparation for mobile telephone 30       5 A¹) - R86 - Aerial amplifier for mobile telephone¹) R126 - Telephone bracket¹) 30 ¹) from September 2008     Audi A8 Fitting Locations No.  802 / 11 No.   Current Flow Diagram designation Nominal value   Function/component Terminal 28 - SB28 - Fuse 28 on fuse holder B 5 A - J17 - Fuel pump relay J49 - Electric fuel pump 2 relay J248 - Diesel direct injection system control unit J569 - Brake servo relay J623 - Engine control unit 15 29 - SB29 - Fuse 29 on fuse holder B 15 A - N30.. - Injector 87 30 - SB30 - Fuse 30 on fuse holder B 30 A - N...- Ignition coils with output stage J623 - Engine control unit 87 31 - SB31 - Fuse 31 on fuse holder B 20 A 40 A - G23 - Right fuel pump N115 - Active charcoal filter system solenoid valve 2 (USA) V144 - Fuel system diagnostic pump (USA) J538 - Fuel pump control unit 87 32 - SB32 - Fuse 32 on fuse holder B 10 A 5 A - J217 - Automatic gearbox control unit 01J, 01T J217 - Automatic gearbox control unit 09E, 09L 15 33 - SB33 - Fuse 33 on fuse holder B 25 A - Z42-Rear left footwell heater element 75 34 - Vacant         35 - Vacant         36 - SB36 - Fuse 36 on fuse holder B 5 A - J769 - Lane change assist control unit 15 37 - SB37 - Fuse 37 on fuse holder B 15 A - J698-Refrigerator box 15 38 - SB38 - Fuse 38 on fuse holder B 20 A - V284 - Radiator fan 3 30 39 - SB39 - Fuse 39 on fuse holder B 7.5 A - J386 - Driver door control unit 30 Audi A8 Fitting Locations No.  802 / 13 AUDI A8 2003 Location of fuses (SC) Location of fuses (SC) https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO 모든 배선 다이어그램에 액세스하십시오. Fuse colours 40A orange 30A green 25A white 20A yellow 15A blue 10A red 7.5A brown 5A beige 3A purple 1A black Fuses in fuse holder, right dash panel

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
1	-	SC1 - Fuse 1 on fuse holder C	5 A	-	J540 - Electric park and handbrake control unit	15
2	-	SC2 - Fuse 2 on fuse holder C	10 A	-	J255 - Climatronic control unit	30
3	-	SC3 - Fuse 3 on fuse holder C	5 A	-	F189 - Tiptronic switch F305 - Gear selector position P switch N110 - Selector lever lock solenoid	15
4	-	SC4 - Fuse 4 on fuse holder C	15 A	-	J217 - Automatic gearbox control unit 01J/01T	87
5	-	SC5-Fuse 5 on fuse holder C	15 A	-	G70 - Air mass meter J299 - Secondary air pump relay J338 - Throttle valve module J724 - Turbocharger 1 control unit N18 - Exhaust gas recirculation valve N112 - Secondary air inlet valve N145 - Right electrohydraulic engine mounting solenoid valve N382 - Torque rod valve V157 - Intake manifold flap motor	87
6	-	SC6 - Fuse 6 on fuse holder C	15 A	-	G39 - Lambda probe G108 - Lambda probe 2	87
7	-	SC7 - Fuse 7 on fuse holder C	15 A 10 A	-	G130 - Lambda probe after catalytic converter G131 - Lambda probe 2 after catalytic converter N276 - Fuel pressure regulating valve N290 - Fuel metering valve	87

Audi A8	Fitting Locations	No.  802 / 16

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
14	-	SC14 - Fuse 14 on fuse holder C	5 A	-	R41 - CD changer R92 - CD ROM drive R129 - Video recorder / DVD player	30
15	-	SC15 - Fuse 15 on fuse holder C	5 A	-	J644 - Energy management control unit	30
16	-	SC16 - Fuse 16 on fuse holder C	5 A 7.5 A³)	-	N79 - Heater element for crankcase breather	87
17	-	SC17 - Fuse 17 on fuse holder C	5 A¹)	-	- Vacant V7 - Radiator fan V177 - Radiator fan 2	87
18	-	SC18 - Fuse 18 on fuse holder C	5 A	-	- Vacant (from January 2003) J234 - Airbag control unit²) J706 - Seat occupied recognition control unit (only USA)²) L34 - Map reading light bulb (up to December 2002)	15
19	-	SC19 - Fuse 19 on fuse holder C	5 A	-	G70 - Air mass meter	15
20	-	SC20 - Fuse 20 on fuse holder C	5 A	-	J526 - Telephone and telematics control unit (USA) J672 - Driver seat ventilation control unit J673 - Front passenger seat ventilation control unit	75
21	-	SC21 - Fuse 21 on fuse holder C	15 A 5 A	-	J248 - Diesel direct injection system control unit J271 - Motronic current supply relay J623 - Engine control unit	30
22	-	SC22 - Fuse 22 on fuse holder C	10 A	-	J445 - Fuel cooling pump relay V166 - Fuel cooling pump	30

¹) from model year 2004 ²) from model year 2005 ³) from model year 2006

Audi A8	Fitting Locations	No.  802 / 18

No.		Current Flow Diagram designation	Nominal value		Function/component	Terminal
33	-	SC33-Fuse 33 on fuse holder C	25 A	-	Z43-Rear right footwell heater element	75
34	-	SC34 - Fuse 34 on fuse holder C	20 A	-	- Seat heating/rear seat ventilation E265 - Rear Climatronic operating and display unit	30
35	-	SC35 - Fuse 35 on fuse holder C	20 A	-	J255 - Climatronic control unit J672 - Driver seat ventilation control unit J673 - Front passenger seat ventilation control unit	30
36	-	SC36 - Fuse 36 on fuse holder C	20 A	-	U1 - Cigarette lighter	30
37	-	SC37 - Fuse 37 on fuse holder C	20 A 30 A 25 A³)	-	U9 - Rear cigarette lighter U18 - 12 V Socket 2²) U19 - 12 V Socket 3²)	30
38	-	SC38 - Fuse 38 on fuse holder C	20 A¹)	-	-Vacant V284 - Radiator fan 3¹)	30
39	-	SC39 - Fuse 39 on fuse holder C	15 A 7.5 A¹)	-	J387 - Front passenger side door control unit	30
40	-	SC40 - Fuse 40 on fuse holder C	15 A	-	J569-Brake servo relay V192-Vacuum pump for brakes	30
41	-	SC41 - Fuse 41 on fuse holder C	15 A 7.5 A¹)	-	J389 - Rear right door control unit	30

¹) from model year 2004 ²) from model year 2005 ³) from model year 2006

Audi A8	Fitting Locations	No.  802 / 20

Audi A8 Fitting Locations No.  802 / 21 No.   Current Flow Diagram designation Nominal value   Function/component Terminal 10 - SC10 - Fuse 10 on fuse holder C 5 A - J533 - Data bus diagnostic interface 15 11 - SC11 - Fuse 11 on fuse holder C 5 A - G397 - Rain and light detector sensor 30 12 - SC12 - Fuse 12 on fuse holder C 5 A - F - Brake light switch 30 13 - SC13 - Fuse 13 on fuse holder C 10 A - J528-Roof electronics control unit 30 14 - SC14 - Fuse 14 on fuse holder C 5 A¹) - J685 - Display unit for front information display and operating unit control unit ¹) 30 15 - SC15 - Fuse 15 on fuse holder C 5 A - J644 - Energy management control unit 30 16 - SC16 - Fuse 16 on fuse holder C 10 A - - Rear-Seat-Entertainment 15 17 - SC17 - Fuse 17 on fuse holder C 5 A - V7-Radiator fan V177-Radiator fan 2 87 18 - SC18 - Fuse 18 on fuse holder C 5 A - J234 - Airbag control unit J706 - Seat occupied recognition control unit (USA only) 15 19 - Vacant         20 - SC20 - Fuse 20 on fuse holder C 5 A - J672 - Driver seat ventilation control unit J673 - Front passenger seat ventilation control unit 75 21 - Vacant         22 - SC22 - Fuse 22 on fuse holder C 5 A - F47 - Brake pedal switch 87 23 - SC23 - Fuse 23 on fuse holder C 5 A - F234 - Parking brake pressure switch 30 24 - SC24 - Fuse 24 on fuse holder C 10 A - J520 - Onboard supply control unit 2 30 25 - SC25 - Fuse 25 on fuse holder C 40 A - J400 - Wiper motor control unit 30 ¹) from September 2008     Audi A8 Fitting Locations No.  802 / 23 No.   Current Flow Diagram designation Nominal value   Function/component Terminal 39 - SC39 - Fuse 39 on fuse holder C 7.5 A - J387 - Front passenger side door control unit 30 40 - SC40 - Fuse 40 on fuse holder C 25 A - J519 - Onboard supply control unit V123 - steering column vertical adjustment motor V124 - Steering column axial adjustment motor 30 41 - SC41 - Fuse 41 on fuse holder C 7.5 A - J389 - Rear right door control unit 30 42 - SC42 - Fuse 42 on fuse holder C 20 A - J364 - Engine residual heat accumulator control unit 30 43 - SC43 - Fuse 43 on fuse holder C 30 A   J39 - Headlight washer system relay 30 44 - SC44 - Fuse 44 on fuse holder C 30 A - V2 - Fresh air blower (air conditioning) 30 AUDI A8 2003 Fuse locations on fuse holder, in electronics box

Fuse locations on fuse holder, in electronics box

A -

Vacant

B -	Glow plug strip fuse -S39-, 60A

q	Engine code ASE only

q	from model year 2004

B -	Glow plug fuse -S125-, 80A

q	Engine codes ASB, BNG, ASE, BVN only

q	from model year 2004

B -	Secondary air pump fuse -S130-, 50A

C -	Glow plug fuse -S125-, 60A

q	Engine code ASE only

q	from model year 2004, 80A

C -	Glow plug fuse 2 -S189-, 80A

q	Engine codes ASE, BVN only

q	from model year 2004

C -	Secondary air pump fuse 2 -S284-, 50A

q	Engine code BHT only

D -

Vacant

F -

Vacant

G -

Vacant

H -

Vacant

AUDI A8 2003 Fuse locations on fuse holder, in electronics box, right-hand drive

Fuse locations on fuse holder, in electronics box, right-hand drive

A -

Vacant

B -

Vacant

C -

Vacant

D -

Vacant

E -	Engine glow plug strip fuse -S39-, 80 A

q	Engine code ASE only

-	Glow plug fuse -S125-, 80 A

q	Engine codes ASE, BVN, ASB, BNG only

-	Secondary air pump fuse -S130-, 50 A

F -

Vacant

G -	Glow plug fuse 2 -S189-, 80 A

q	Engine codes ASE, BVN only

-	Secondary air pump fuse 2 -S284-, 50 A

q	Engine code BHT only

AUDI A8 2003 Position of fuses on fuse holder, on left behind dash panel

Position of fuses on fuse holder, on left behind dash panel

A -	ABS control unit fuse 1 -S123-, 60A

B -	Levelling system fuse -S110- 40A

C -	Window regulator thermal fuse -S43- 40A

q	from model year 2004, 30A

D -	Seat adjustment thermal fuse 1 -S44-, 30A

E -	Seat adjustment thermal fuse 2 -S45- 30A

F -

Vacant

G -

Vacant

H -

Vacant

AUDI A8 2003 Position of fuses on fuse holder, on right behind dash panel, right-hand drive

Position of fuses on fuse holder, on right behind dash panel, right-hand drive

A -	Driver seat adjustment thermal fuse 1 -S44-, 30 A

B -	Window regulator thermal fuse -S43-, 30 A

C -

Vacant

F -

Vacant

G -	Driver seat adjustment thermal fuse 2 -S45-, 30 A

H -

Vacant

AUDI A8 2003 Fuses on fuse holder, in front right footwell

Fuses on fuse holder, in front right footwell

A -	Front passenger side window regulator fuse -S170-, 30 A

q	up to July 2006

B -	Front passenger seat adjustment thermal fuse 1 -S46- 30 A

C -	Hot air blower single fuse -S25-, 30 A

q	up to model year 2003

C -

Vacant

q	from model year 2004

C -	Front passenger side window regulator fuse -S170-, 30 A

q	from August 2006

D -	Front passenger seat adjustment thermal fuse 2 -S80-, 30 A

E -

Vacant

F -

Vacant

AUDI A8 2003 Fuses on fuse holder, in front right footwell, right-hand drive

Fuses on fuse holder, in front right footwell, right-hand drive

A -	Window regulator thermal fuse -S43-, 30 A

q	up to October 2006

B -	Driver seat adjustment thermal fuse 1 -S44-, 30 A

C -

Vacant

q	up to October 2006

-	Window regulator thermal fuse -S43-, 30 A

q	from November 2006

D -	ABS control unit fuse 1 -S123-, 60 A

E -	Driver seat adjustment thermal fuse 2 -S45-, 30 A

F -	Levelling system fuse -S110-, 40 A

AUDI A8 2003 Position of fuses on main fuse carrier, right A-pillar

Position of fuses on main fuse carrier, right A-pillar

1 -	Radiator fan single fuse -S42-, 60A

1A -	Screw point radiator fan

2 -	Radiator fan fuse for 2nd speed -S104-, 60A

2A -	Screw point radiator fan fuse for 2nd speed

3 -	Terminal 30 screw point (battery)

4 -	Terminal 30 screw point (starter)

AUDI A8 2003 Position of fuses on fuse holder, in right luggage compartment

Position of fuses on fuse holder, in right luggage compartment

A -	Heated rear window single fuse -S41- 40A

B -	Rear seat adjustment thermal fuse 1 -S335- 30A

q	up to model year 2005

B -	Fuel pump fuse -S81- 40A

q	from model year 2006

C -	Rear seat adjustment thermal fuse 2 -S336- 30A

D -

Vacant

D -	Communications fuse -S254-, 15A

q	up to model year 2005

AUDI A8 2003 Fuses on fuse holder, on right in luggage compartment

Fuses on fuse holder, on right in luggage compartment

1 -	Terminal 30, fuse 1 -S131- 110A, for heated windscreen - Z2

1A -	Terminal 30a screw point heated windscreen -Z2-

2 -	Terminal 30, fuse 2 -S132-, 60A for radio, navigation, TV tuner

2A -	Terminal 30a screw point

3 -	Terminal 30, fuse 3 -S133- 150A, for onboard supply

3A -	Terminal 30a screw point (onboard supply)

4 -	Terminal 30 screw point (fuse holder)

5 -	Terminal 30 screw point (battery)

AUDI A8 2003 Position of fuses (SF) on fuse holder, on right in luggage compartment, up to model year 2003

Position of fuses (SF) on fuse holder, on right in luggage compartment, up to model year 2003

-	SF1 - Convenience system central control unit -J393-, left light, 20A

SF2 -

Convenience system central control unit -J393-, right light, 10A

-	SF3 - Convenience system central control unit -J393-, power latching system, 20A

-	SF4 - Electric park and handbrake control unit -J540-, left parking brake motor -V282-, 30A

-	SF5 - Electric park and handbrake control unit -J540-, right parking brake motor -V283-, 30A

-	SF6 - Trailer detector control unit -J345-, left light, 15A

-	SF7 - Trailer detector control unit -J345-, right light, 15A

-	SF8 - Trailer detector control unit -J345-, 10A

-	SF9 - Fuel pump -G23-, 20A

-	SF10 - Fuel system pressurisation pump -G6-, 20A

AUDI A8 2003 Position of fuses (SF) on fuse holder, on right in luggage compartment, from model year 2004

Position of fuses (SF) on fuse holder, on right in luggage compartment, from model year 2004

-	SF1 - Fuel pump -G23-, 20A

-	SF2 - Fuel system pressurisation pump -G6-, 20A

-	SF3 - Trailer socket - U10, terminal 15, 15A

q	vacant, from model year 2006

-	SF4 - Interface control unit for vehicle location system -J843-, 5A

q	from June 2008

-	SF5 - Convenience system central control unit -J393-, rear left light, 20A

-	SF6 - Convenience system central control unit -J393-, rear right light, 10A

-	SF7 - Convenience system central control unit -J393-, power latching system, 20A

-	SF8 - Control unit for electromechanical parking brake -J540-, left parking brake motor -V282-, 30A

Audi A8	Fitting Locations	No.  802 / 35

-	SF9 - Electric park and handbrake control unit -J540-, right parking brake motor -V283-, 30A

-	SF10 - Trailer detector control unit -J345-, left light, 15A/ 20A

q	15A up to August 2007

q	20A from November 2007

-	SF11 - Trailer detector control unit -J345-, right light, 15A/ 20A

q	15A up to August 2007

q	20A from November 2007

-	SF12 - Trailer detector control unit -J345-, 15A

AUDI A8 2003 Position of fuses (SF) on fuse holder, in right luggage compartment, right-hand drive

Position of fuses (SF) on fuse holder, in right luggage compartment, right-hand drive

1 -	Fuel pump -G23-, 20 A

2 -	Fuel system pressurisation pump -G6-, 20 A

3 -

Vacant

4 -

Vacant

5 -	Convenience system central control unit -J393-, 20 A (rear left light)

6 -	Convenience system central control unit -J393-, 10 A (rear right light)

7 -	Convenience system central control unit -J393-, 20 A (power latching system)

8 -	Control unit for electromechanical parking brake -J540-, left parking brake motor -V282-, 30 A

9 -	Control unit for electromechanical parking brake -J540-, right parking brake motor -V283-, 30 A

Audi A8	Fitting Locations	No.  802 / 37

10 -	Trailer detector control unit -J345-, 20A (left light)

11 -	Trailer detector control unit -J345-, 20A (right light)

12 -	Trailer detector control unit -J345-, 15 A

AUDI A8 2003 Position of fuses (SD) on fuse holder, on left in luggage compartment, up to model year 2003

Position of fuses (SD) on fuse holder, on left in luggage compartment, up to model year 2003

-	SD1 - Digital sound package control unit -J525-, 30A

-	SD2 - Navigation system with CD drive control unit -J401-, 5A

-	SD3 - TV-tuner -R78-, 10A

-	SD4 - Vacant

-	SD5 - Radio -R-, 5A

-	SD6 - Middle loudspeaker in rear shelf -R148-, 30A

-	SD7 - 12 V socket -U5-, 20A

-	SD8 - Remote control receiver for auxiliary heating -R64-, 5A

-	SD9 - Vacant

-	SD10 - Vacant

A1 -	Terminal 30 screw point (battery)

B1 -	Terminal 30 screw point

AUDI A8 2003 Position of fuses (SD) on fuse holder, on left in luggage compartment, from model year 2004

Position of fuses (SD) on fuse holder, on left in luggage compartment, from model year 2004

-	SD1 - Vacant

-	SD2 - Vacant

-	SD3 - Vacant

-	SD4 - Vacant

-	SD5 - Digital sound package control unit -J525-, 30A

-	SD6 - Navigation system with CD drive control unit -J401-, 5A

-	SD7 - TV-tuner -R78-, digital TV tuner -R171-, 10A

-	SD8 - Reversing camera system control unit -J772-, 5A

q	vacant, up to model year 2007

-	SD9 - Radio -R-, digital radio -R147-, satellite radio -R146-, 5A

q	-R146- only USA

q	up to August 2008

-	SD9 - Radio -R-, 25A

q	from September 2008

-	SD10 - Middle loudspeaker -R148-, 15A

Audi A8	Fitting Locations	No.  802 / 40

-	SD10 - Digital sound package control unit 2 -J787-, 30A

q	only BANG and OLUFSEN

-	SD11 - 12 V socket -U5-, 20A

-	SD12 - Remote control receiver for auxiliary heating -R64-, 5A

A1 -	Terminal 30 screw point (battery)

B1 -	Terminal 30 screw point (fuse holder)

AUDI A8 2003 Position fuse holder on left in luggage compartment, right-hand drive

Position fuse holder on left in luggage compartment, right-hand drive

-	SD1 - Vacant

-	SD2 - Vacant

-	SD3 - Vacant

-	SD4 - Vacant

-	SD5 - Digital sound package control unit -J525-, 30A

-	SD6 - Navigation system with CD drive control unit -J401-, 5A

-	SD7 - TV-tuner -R78-, 10A

-	SD8 - Reversing camera system control unit -J772-, 5A

-	SD9 - Radio -R-, digital radio -R147-, satellite radio -R146-, 5A

q	-R146- only USA

q	up to August 2008

-	SD9 - Radio -R-, 25A

q	from September 2008

Audi A8	Fitting Locations	No.  802 / 42

-	SD10 - Middle loudspeaker - R148, 15 A

-	Digital sound package control unit 2 -J787-, 30 A

q	only BANG and OLUFSEN

-	SD11 - 12 V socket -U5-, 20 A

-	SD12 - Remote control receiver for auxiliary heating -R64-, 5 A

A1 -	Terminal 30 screw point (battery)

B1 -	Terminal 30 screw point (fuse holder)

AUDI A8 2003

AUDI A8 2003 Overview of relay carriers

Overview of relay carriers

   

Relay and fuse holder, in electronics box plenum chamber

q	Relay positions

Relay and fuse holder, behind left dash panel

q	Position of relays, left-hand drive only

2 -	Relay and fuse holder behind right dash panel

q	Position of relays, right-hand drive only

Relay and fuse holder in front right footwell

q	Position of relays, left-hand drive

-	Relay and fuse holder in front left footwell

q	Position of relays, right-hand drive

Relay and fuse holder, on right in luggage compartment

q	Relay positions

Relay and fuse holder, in electronics box plenum chamber

1 -	Glow plug relay -J52-

q	Engine code ASE only

1 -	Secondary air pump relay -J299-

2 -	Glow plug relay 2 -J495-

q	Engine code ASE only

2 -	Secondary air pump relay 2 -J545-

q

only VR12

2 -	Motronic current supply relay -J271-

q	From June 2003

2 -	Terminal 30 voltage supply relay -J317-

q	From June 2003

3 -	Terminal 30 voltage supply relay -J317-

q	To May 2003

3 -	Motronic current supply relay -J271-

q	To May 2003

3 -	Glow plug relay 2 -J495-

q	From model year 2004

q	Engine code ASE only

3 -	Secondary air pump relay 2 -J545-

q	From model year 2004

q	Engine code BHT only

3 -	Automatic glow period control unit -J179-

q	From model year 2004

q	Engine code BVN only

4 -	Automatic glow period control unit -J179-

q	Engine codes ASB, BNG only

q	left-hand drive only

4 -	Glow period control unit 2 -J703-

q	Engine code BVN only

q	left-hand drive only

Position, relay and fuse holder behind left dash panel

1 -	Adaptive suspension compressor relay -J403-

2 -	Dual tone horn relay -J4-

3 -	Terminal 15 voltage supply relay -J329-

4 -	Washer fluid heater relay -J711-

q	To model year 2004

5 -	Control unit for taxi alarm remote control -J601-

q	From model year 2006

6 -	Terminal 75 voltage supply relay 1 -J680-

Position, relay and fuse holder behind right dash panel

1 -	Headlight washer system relay -J39-

2 -	Starter motor relay -J53-

3 -	Terminal 15 voltage supply relay -J329-

4 -	Washer fluid heater relay -J711-

q	To model year 2004

5 -	Starter motor relay 2 -J695-

6 -	Terminal 75 voltage supply relay 1 -J680-

Position, relay and fuse holder in front right footwell, left-hand drive

1 -	Radiator fan 3 relay -J752-

q	6.0 l petrol engine

1 -	Fuel​ cooling​ pump​ relay​ -J445-

q

TDI

1 -	Brake servo relay -J569-

q	Petrol engine

1.1 -

Additional​ coolant​ pump​ relay -J496-

1.1 -

Continued coolant circulation relay -J151-

2 -	Starter motor relay -J53-

3 -	Starter motor relay 2 -J695-

4 -	Fuel pump relay -J17-

4 -	Engine components current supply relay -J757-

q	Engine code BSM only

5 -	Headlight washer system relay -J39-

-J752-, -J445-, -J569-, -J496-, -J151- are mini-relays and can be found on a relay connector position

Position, relay and fuse holder in front left footwell, right-hand drive

1.1 -

Radiator fan 3 relay -J752-

q	6.0 l petrol engine

1.1 -

Fuel​ cooling​ pump​ relay​ -J445-

q

TDI

1.1 -

Brake servo relay -J569-

q	Petrol engine

1.2 -

Additional​ coolant​ pump​ relay -J496-

1.2 -

Continued coolant circulation relay -J151-

2 -	Dual tone horn relay -J4-

3 -	Not assigned

4 -	Fuel pump relay -J17-

4 -	Engine components current supply relay -J757-

q	Engine code BSM only

5 -	Adaptive suspension compressor relay -J403-

-J752-, -J445-, -J569-, -J496-, -J151- are mini-relays and can be found on a relay connector position

Position, relay and fuse holder, on right in luggage compartment

1 -	Heated rear window relay -J9-

2 -	Not assigned

2 -	Current supply relay -J16-

q	From model year 2005

3 -	Fuel pump relay -J17-

q	Engine codes BVJ, ASB only

3 -	Electric fuel pump 2 relay -J49-

q	Petrol engines only

3 -	Cold start relay for fuel pump -J748-

q	From model year 2006