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Audi A4 2002 — Auxiliary heater . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A4 2002 - Temperature sensor - flame monitor - additional heater control unit - auxiliary heating radio wave receiver - heater overheating fuse (8 Amp.) - auxiliary heater fuse

G18	Temperature sensor
G64	Flame monitor
J364	Additional heater control unit
R1	Aerial connection
R11	Aerial
R64	Auxiliary heating radio wave receiver
R108	Aerial module, left
S24	Heater overheating fuse (8 Amp.)
S62	Auxiliary heater fuse
T10k	10-pin connector, white, connector point, A pillar, left
44	Earth point, lower part of left A pillar
86	Earth connection -1-, in rear wiring harness
146	Earth connection -1-, in auxiliary heater wiring harness
501	Screw connection -2- (30), on relay plate
A52	Positive (+) connection -2- (30), in dash panel wiring harness
B271	Positive (+) connection (auxiliary heater), in interior wiring harness
*	Saloon models
**	Avant models

Wiring Diagram AUDI A4 2002 - Control and display unit for air conditioner/Climatronic - additional heater control unit - coolant shut-off valve - glow plug - combustion air blower - metering pump - recirculating pump

E87	Control and display unit for air conditioner/Climatronic
J285	Control unit with display in dash panel insert
J364	Additional heater control unit
N279	Heater coolant shut-off valve
Q8	Glow plug with flame monitor
T10k	10-pin connector, white, connector point, A pillar, left
T16	16-pin connector, black, diagnostic connector
T32	32-pin connector, blue, on dash panel insert
V6	Combustion air blower
V54	Metering pump
V55	Recirculating pump
146	Earth connection -1-, in auxiliary heater wiring harness
249	Earth connection -2-, in interior wiring harness
A146	Connection (convenience CAN bus, high), in dash panel wiring harness
A147	Connection (convenience CAN bus, low), in dash panel wiring harness
A159	Connection (L), in dash panel wiring harness

AUDI A4 2002

AUDI A4 2002 Overview of earth points in engine compartment

Overview of earth points in engine compartment

1 -	Earth point, in battery box -11-

q	Location ⇒ page → 801/6

2 -	Earth point, starter battery -624-

q	Location → page 801/11

3 -	Earth point, on left in engine compartment -12-

q	not for 2,0 l engine FSI, not for 2,5 l engine TDI, location → page 801/6

q	only for 2.0 l FSI motor, location → page 801/7

q	only for 2,5 l engine TDI, location → page 801/7

4 -	Earth point, on front apron -26-

q	Location → page 801/10

5 -	Earth point, near coil -19-

q	Location → page 801/10

6 -	Earth point, on engine block -18-

q	only for 1.8 l engine, location → page 801/8

q	only for 2.0 l FSI motor, location → page 801/9

q	only for 3.0 l engine, location → page 801/9

Audi A4	Fitting Locations	No. 801 / 2

Overview of earth points in vehicle interior

1 -	Earth point, lower part of right A-pillar -43-

q	Location → page 801/13

2 -	Earth point, on right behind dash panel -33-

q	Location → page 801/12

3 -	Earth point (audio), under centre console, front -610-

q	Location → page 801/15

4 -	Earth point, lower part of right B-pillar -78-

q	Location → page 801/15

5 -	Earth point, lower part of left B-pillar -77-

q	Location → page 801/14

6 -	Earth point, near convenience system central control unit -49-

q	Location → page 801/14

Audi A4	Fitting Locations	No. 801 / 3

7 -	Earth point, lower part of left A-pillar -44-

q	Location → page 801/13

8 -	Earth point, on left behind dash panel -32-

q	Location → page 801/12

Audi A4	Fitting Locations	No. 801 / 4

Overview of earth points in luggage compartment - saloon models

Note:

♦ Overview of luggage compartment - Avant models → Page 801/5

1 -	Earth point, right D-pillar -654-

q	Location → page 801/17

2 -	Earth point in luggage compartment -701-

q	Location → page 801/17

3 -	Earth point, left D-pillar -653-

q	Location → page 801/16

4 -	Earth point, on left in luggage compartment -50-

q	Location → page 801/16

Audi A4	Fitting Locations	No. 801 / 5

Overview of earth points in luggage compartment - Avant models

1 -	Earth point, right D-pillar -654-

q	Location → page 801/20

2 -	Earth point, on right in rear lid -53-

q	Location → page 801/19

3 -	Earth point, left D-pillar -653-

q	Location → page 801/20

4 -	Earth point, on left in rear lid -52-

q	Location → page 801/19

5 -	Earth point, on left in luggage compartment -50-

q	Location → page 801/18

Audi A4	Fitting Locations	No. 801 / 6

AUDI A4 2002 Earth point, in engine compartment

Earth point, in engine compartment

11	Earth point, in battery box -arrow-

Torque: 20 Nm

12	Earth point, in engine compartment, left -arrow-

on bulkhead

Torque: 9 Nm

not for 2,0 l engine FSI

not for 2,5 l engine TDI

Audi A4	Fitting Locations	No. 801 / 7

12	Earth point, in engine compartment, left -arrow-

on bulkhead

Torque: 9 Nm

only for 2,0 l engine FSI

12	Earth point, in engine compartment, left -arrow-

on bulkhead

Torque: 9 Nm

only for 2,5 l engine TDI

Audi A4	Fitting Locations	No. 801 / 8

18	Earth point on engine block -arrow-

Torque: 8 Nm

only for 1.8 l engine

18	Earth point on engine block -arrow-

Torque: 8 Nm

only for 2.0 l engine

Audi A4	Fitting Locations	No. 801 / 9

18	Earth point on engine block -arrow-

Torque: 9 Nm

only for 2,0 l engine FSI

18	Earth point on engine block -arrow-

Torque: 8 Nm

only for 3.0 l engine

Audi A4	Fitting Locations	No. 801 / 10

19	Earth point, near coil -arrow-

Torque: 8 Nm

only for 4.2 l engine

26	Earth point, on front apron -arrow-

Torque: 9 Nm

Audi A4	Fitting Locations	No. 801 / 11

624	Earth point, starter battery -arrow-

Torque: 7.5 Nm

Audi A4	Fitting Locations	No. 801 / 12

AUDI A4 2002 Earth points, in interior

Earth points, in interior

32	Earth point behind dash panel on left -arrow-

Torque: 9 Nm

33	Earth point behind dash panel on right -arrow-

Torque: 9 Nm

Audi A4	Fitting Locations	No. 801 / 13

43	Earth point, lower part of right A-pillar -arrow-

Torque: 9 Nm

44	Earth point, lower part of left A-pillar -arrow-

Torque: 9 Nm

Audi A4	Fitting Locations	No. 801 / 14

49	Earth point, near convenience system central control unit -arrow-

Torque: 9 Nm

77	Earth point, lower part of left B-pillar -arrow-

Torque: 9 Nm

Audi A4	Fitting Locations	No. 801 / 15

78	Earth point, lower part of right B-pillar -arrow-

Torque: 9 Nm

610	Earth point (audio), under centre console, front -arrow-

Torque: 9 Nm

Audi A4	Fitting Locations	No. 801 / 16

AUDI A4 2002 Earth point, in luggage compartment - saloon models

Earth point, in luggage compartment - saloon models

50	Earth point, on left in luggage compartment -arrow-

Torque: 9 Nm

653	Earth point, left D-pillar -arrow-

Torque: 9 Nm

Audi A4	Fitting Locations	No. 801 / 17

654	Earth point, right D-pillar -arrow-

Torque: 9 Nm

701	Earth point, in luggage compartment -arrow-

Torque: 20 Nm

Audi A4	Fitting Locations	No. 801 / 18

Earth point, in luggage compartment - Avant models

50	Earth point, on left in luggage compartment -arrow-

Torque: 9 Nm

Audi A4	Fitting Locations	No. 801 / 19

52	Earth point, on left in rear lid -arrow-

Torque: 9 Nm

53	Earth point, on right in rear lid -arrow-

Torque: 9 Nm

Audi A4	Fitting Locations	No. 801 / 20

653	Earth point, left D-pillar -arrow-

Torque: 9 Nm

654	Earth point, right D-pillar -arrow-

Torque: 9 Nm

AUDI A4 2002 Control units overview

Control units overview

1 -	Heated windscreen control unit -J505-

q	Location → page 804/4

2 -	CD changer -R41-

q	Location → page 804/13

3 -	Fresh air blower control unit -J126-

q	Location ⇒ page → 804/7

4 -	Headlight range control, control unit -J431-

q	Location → page 804/7

5 -

Radio -R-

q	not for navigation system

q	Location → page 804/11

5 -	Navigation operating electronics control unit -J402-

q	for navigation system RNS-D only

q	Location → page 804/11

5 -	Control unit with display for radio and navigation system -J503-

q	for navigation system RNS-Low only

q	Location → page 804/13

Audi A4	Fitting Locations	No. 804 / 2

5 -	Navigation system with CD drive control unit -J401-

q	Location for navigation system NS-Low → page 804/12

q	Location for navigation system RNS-E → page 804/12

6 -	Telephone and telematics control unit, telematics -J526-

q	Location → page 804/14

6 -	Language input control unit -J507-

q	Location → page 804/14

7 -	Steering column electronics control unit -J527-

q	Location → page 804/8

8 -	Front passenger side door control unit -J387-

q	Location → page 804/16

9 -	Display control unit in dash panel insert -J285-

q	Location → page 804/8

10 -	Airbag control unit -J234-

q	Location → page 804/9

11 -	Driver door control unit -J386-

q	Location → page 804/16

Audi A4	Fitting Locations	No. 804 / 3

12 -	Convenience system central control unit -J393-

q	Location → page 804/15

13 -	Onboard power supply control unit -J519-

q	Location → page 804/9

14 -	Motronic control unit -J220-

14 -	Diesel direct injection system control unit -J248-

14 -	Simos control unit -J361-

q	Location → page 804/4

15 -	Automatic gearbox control unit -J217-

q	not for models with multitronic®

q	Location → page 804/5

16 -	ABS control unit -J104-

q	Location → page 804/6

17 -	Automatic gearbox control unit -J217-

q	for models with multitronic® only

q	Location → page 804/5

18 -	Radiator fan control unit -J293-

q	Location → page 804/6

Audi A4	Fitting Locations	No. 804 / 4

Heated windscreen control unit -J505-

Location:

On right in plenum chamber, next to battery

AUDI A4 2002 Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-

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

Location:

On electronics box in plenum chamber

Audi A4	Fitting Locations	No. 804 / 5

AUDI A4 2002 Automatic gearbox control unit -J217-

Automatic gearbox control unit -J217-

not for models with multitronic®

Location:

AUDI A4 2002 Automatic gearbox control unit -J217-

In electronics box in plenum chamber

for models with multitronic® only

Location:

In gearbox

Audi A4	Fitting Locations	No. 804 / 6

AUDI A4 2002 ABS control unit -J104-

ABS control unit -J104-

Location:

In engine compartment, on front left hydraulic unit

AUDI A4 2002 Radiator fan control unit -J293-

Radiator fan control unit -J293-

Location:

on radiator fan

Audi A4	Fitting Locations	No. 804 / 7

AUDI A4 2002 Fresh air blower control unit -J126-

Fresh air blower control unit -J126-

Location:

Behind the glove box, in fresh air blower

AUDI A4 2002 Headlight range control, control unit -J431-

Headlight range control, control unit -J431-

Location:

Behind the glove box

Audi A4	Fitting Locations	No. 804 / 8

AUDI A4 2002 Steering column electronics control unit -J527-

Steering column electronics control unit -J527-

Location:

On steering column

AUDI A4 2002 Display control unit in dash panel insert -J285-

Display control unit in dash panel insert -J285-

Location:

In the dash panel behind the display unit

Audi A4	Fitting Locations	No. 804 / 9

AUDI A4 2002 Airbag control unit -J234-

Airbag control unit -J234-

Location:

On centre tunnel, under handbrake lever

AUDI A4 2002 Onboard power supply control unit -J519-

Onboard power supply control unit -J519-

Location:

Behind driver's storage compartment

Audi A4	Fitting Locations	No. 804 / 10

AUDI A4 2002 Trailer detector control unit -J345-

Trailer detector control unit -J345-

Location:

In left luggage compartment, behind side trim

AUDI A4 2002 Parking aid control unit -J446-

Parking aid control unit -J446-

Location:

In left luggage compartment, behind side trim, on apron

Audi A4	Fitting Locations	No. 804 / 11

AUDI A4 2002 Navigation operating electronics control unit -J402-

Navigation operating electronics control unit -J402-

for navigation system RNS-D only

Location:

in centre console

AUDI A4 2002 Navigation operating electronics control unit -J402-

AUDI A4 2002 Radio -R-

Radio -R-

not for navigation system

Location:

in centre console

Audi A4	Fitting Locations	No. 804 / 12

AUDI A4 2002 Navigation system with CD drive control unit -J401-

Navigation system with CD drive control unit -J401-

For navigation system NS-Low only

Location:

AUDI A4 2002 Navigation system with CD drive control unit -J401-

in centre console

For navigation system RNS-E only

Location:

in centre console

Audi A4	Fitting Locations	No. 804 / 13

AUDI A4 2002 Control unit with display for radio and navigation system -J503-

Control unit with display for radio and navigation system -J503-

for navigation system RNS-Low only

Location:

in centre console

AUDI A4 2002 CD changer -R41-

CD changer -R41-

Location:

In glove compartment

Audi A4	Fitting Locations	No. 804 / 14

AUDI A4 2002 Telephone and telematics control unit, telematics -J526-

Telephone and telematics control unit, telematics -J526-

For models with telematics only

Location:

in electronics box under front passenger seat

AUDI A4 2002 Telephone and telematics control unit, telematics -J526-

AUDI A4 2002 Language input control unit -J507-

Language input control unit -J507-

For models with telematics only

Location:

in electronics box under front passenger seat

AUDI A4 2002 Language input control unit -J507-

Audi A4	Fitting Locations	No. 804 / 15

AUDI A4 2002 Convenience system central control unit -J393-

Convenience system central control unit -J393-

Location:

on sill, front left

AUDI A4 2002 Convenience system central control unit -J393-

Audi A4	Fitting Locations	No. 804 / 16

AUDI A4 2002 Driver door control unit -J386-

Driver door control unit -J386-

Location:

In window regulator motor integrated

AUDI A4 2002 Front passenger side door control unit -J387-

Front passenger side door control unit -J387-

Location:

In window regulator motor integrated

AUDI A4 2002 – Auxiliary heater . Wiring diagrams, Pin Connector, Location

Wiring Diagram AUDI A4 2002 - Temperature sensor - flame monitor - additional heater control unit - auxiliary heating radio wave receiver - heater overheating fuse (8 Amp.) - auxiliary heater fuse

Wiring Diagram AUDI A4 2002 - Control and display unit for air conditioner/Climatronic - additional heater control unit - coolant shut-off valve - glow plug - combustion air blower - metering pump - recirculating pump

AUDI A4 2002

AUDI A4 2002 Overview of earth points in engine compartment

AUDI A4 2002 Earth point, in engine compartment

AUDI A4 2002 Earth points, in interior

AUDI A4 2002 Earth point, in luggage compartment - saloon models

AUDI A4 2002 Control units overview

AUDI A4 2002 Motronic control unit -J220-, diesel direct injection system control unit -J248-, Simos control unit -J361-

AUDI A4 2002 Automatic gearbox control unit -J217-

AUDI A4 2002 ABS control unit -J104-

AUDI A4 2002 Radiator fan control unit -J293-

AUDI A4 2002 Fresh air blower control unit -J126-

AUDI A4 2002 Headlight range control, control unit -J431-

AUDI A4 2002 Steering column electronics control unit -J527-

AUDI A4 2002 Display control unit in dash panel insert -J285-

AUDI A4 2002 Airbag control unit -J234-

AUDI A4 2002 Onboard power supply control unit -J519-

AUDI A4 2002 Trailer detector control unit -J345-

AUDI A4 2002 Parking aid control unit -J446-

AUDI A4 2002 Navigation operating electronics control unit -J402-

AUDI A4 2002 Radio -R-

AUDI A4 2002 Navigation system with CD drive control unit -J401-

AUDI A4 2002 Control unit with display for radio and navigation system -J503-

AUDI A4 2002 CD changer -R41-

AUDI A4 2002 Telephone and telematics control unit, telematics -J526-

AUDI A4 2002 Language input control unit -J507-

AUDI A4 2002 Convenience system central control unit -J393-

AUDI A4 2002 Driver door control unit -J386-

AUDI A4 2002 Front passenger side door control unit -J387-

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