VW POLO 2004 — 1.9l — SDI/47kW, engine code ASY . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW POLO 2004 - Battery - starter - alternator - radiator fan

A	Battery
B	Starter
C	Alternator
C1	Voltage regulator
F18	Radiator fan thermal switch
J519	Onboard supply control unit
S162	Fuse 1 (30) in fuse holder on battery
S163	Fuse 2 (30) in fuse holder on battery
S176	Fuse 4 (30) in fuse holder on battery
S180	Fuse 8 (30) in fuse holder on battery
T2	2-pin connector, near starter
T3a	3-pin connector, grey, on left of bulkhead
T3b	3-pin connector, on radiator fan
T11a	11-pin connector, white, on left of bulkhead
T12a	12-pin connector, white, on left of bulkhead
T18a	18-pin connector, brown
V7	Radiator fan
11	Earth point, in battery box
12	Earth point, on left in engine compartment
82	Earth connection 1, in front left wiring harness
971	Earth point 1, on front of left longitudinal member
*	for models without air conditioning system/Climatronic only
**	up to November 2006
***	from November 2006

Wiring Diagram VW POLO 2004 - Ignition/starter switch - auxiliary heater element

D	Ignition/starter switch
J359	Low heat output relay
J360	High heat output relay
J519	Onboard supply control unit
S276	Heater element fuse 1
S277	Heater element fuse 2
S278	Heater element fuse 3
T6n	6-pin connector, blue, on left of bulkhead
T18a	18-pin connector, brown
Z35	Auxiliary heater element
606	Earth point, under the centre console near gear stick
A2	Positive connection (15), in dash panel wiring harness
A15	Positive connection (15), in instrument panel wiring harness
A32	Positive connection (30), in dash panel wiring harness
A40	Positive connection 1 (30), in dash panel wiring harness
A52	Positive connection 2 (30), in dash panel wiring harness
A104	Positive connection 2 (15), in dash panel wiring harness
A176	Connection (auxiliary heater), in dash panel wiring harness
B169	Positive connection 1 (30), in interior wiring harness
B170	Positive connection 2 (30), in interior wiring harness

Wiring Diagram VW POLO 2004 - Fuel pump relay - diesel direct injection system control unit - fuses

J248	Diesel direct injection system control unit
J317	Terminal 30 voltage supply relay
J519	Onboard supply control unit
SB4	Fuse 4 on fuse holder
SB14	Fuse 14 on fuse holder
SB40	Fuse 40 on fuse holder
T3a	3-pin connector, grey, on left of bulkhead
T6r	6-pin connector, brown, on left of bulkhead
T11b	11-pin connector, red, on left of bulkhead
T14	14-pin connector, in left engine compartment
T121	121-pin connector
A101	Connection 3 (87), in dash panel wiring harness
D102	Connection 2, in engine compartment wiring harness
*	up to November 2006
**	from November 2006

Wiring Diagram VW POLO 2004 - Brake light switch - clutch pedal switch - intake manifold temperature sender - accelerator position sender - diesel direct injection system control unit

F	Brake light switch
F8	Kick-down switch
F36	Clutch pedal switch
F47	Brake pedal switch
F60	Idling speed switch
G72	Intake manifold temperature sender
G79	Accelerator position sender
G185	Accelerator position sender 2
J248	Diesel direct injection system control unit
J519	Onboard supply control unit
SB26	Fuse 26 on fuse holder
T6n	6-pin connector, blue, on left of bulkhead
T11c	11-pin connector, blue, on left of bulkhead
T121	121-pin connector
328	Earth connection 2 (sender earth), in engine compartment wiring harness
A89	Connection 2 (54), in dash panel wiring harness
A100	Connection 2 (87), in dash panel wiring harness
D73	Positive connection (54), in engine compartment wiring harness
D101	Connection 1, in engine compartment wiring harness
*	up to November 2006
**	from November 2006

Wiring Diagram VW POLO 2004 - Fuel temperature sender - modulating piston movement sender - exhaust gas recirculation valve - commencement of injection valve - fuel shut-off valve - metering adjuster - intake manifold flap motor

F268	Auxiliary heating heater element contact switch
G81	Fuel temperature sender
G149	Modulating piston movement sender
J248	Diesel direct injection system control unit
J519	Onboard supply control unit
N18	Exhaust gas recirculation valve
N108	Commencement of injection valve
N109	Fuel shut-off valve
N146	Metering adjuster
T10c	10-pin connector, behind right dash panel
T10e	10-pin connector
T11c	11-pin connector, blue, on left of bulkhead
T14	14-pin connector, in left engine compartment
T16c	16-pin connector, on fresh air blower switch
T121	121-pin connector
V157	Intake manifold flap motor
E30	Connection (87a), in engine wiring harness
F25	Connection 1, in diesel direct injection system wiring harness
F36	Connection (87a), in diesel direct injection system wiring harness

Wiring Diagram VW POLO 2004 - Engine speed sender - needle lift sender - diesel direct injection system control unit - data bus diagnostic interface

G28	Engine speed sender
G80	Needle lift sender
J248	Diesel direct injection system control unit
J519	Onboard supply control unit
J533	Data bus diagnostic interface
T6n	6-pin connector, blue, on left of bulkhead
T11a	11-pin connector, white, on left of bulkhead
T14	14-pin connector, in left engine compartment
T16a	16-pin connector, black
T16b	16-pin connector, diagnosis connection
T18a	18-pin connector, brown
T121	121-pin connector
29	Earth point, on left in engine compartment behind the battery
131	Earth connection 2, in engine compartment wiring harness
156	Earth connection, in diesel direct injection wiring harness
A76	Connection (diagnosis wire K), in dash panel wiring harness
A121	Connection (high bus), in dash panel wiring harness
A122	Connection (low bus), in dash panel wiring harness
D159	Connection (high bus), in engine compartment wiring harness
D160	Connection (low bus), in engine compartment wiring harness
F27	Connection (screening), in diesel direct injection wiring harness

Wiring Diagram VW POLO 2004 - Cruise control system switch - coolant temperature sender - diesel direct injection system control unit - engine glow plug

E45	Cruise control system switch
G62	Coolant temperature sender
J52	Glow plug relay
J248	Diesel direct injection system control unit
J519	Onboard supply control unit
Q6	Engine glow plug
T2g	2-pin connector, near glow plugs
T6w	6-pin connector, grey, on left of bulkhead
T6y	6-pin connector, brown
T11a	11-pin connector, white, on left of bulkhead
T11b	11-pin connector, red, on left of bulkhead
T41	41-pin connector, on steering column switch
T121	121-pin connector
A27	Connection (speed signal), in dash panel wiring harness
A56	Positive connection 2 (30), in dash panel wiring harness
A152	Connection 5 (87), in dash panel wiring harness
A130	Connection (cruise control system), in dash panel wiring harness
D78	Positive connection 1 (30a), in engine compartment wiring harness
D98	Connection (glow plugs), in engine compartment wiring harness
*	for models with CCS only

Wiring Diagram VW POLO 2004 - Oil pressure switch - fuel gauge - speedometer sender - oil level and oil temperature sender - dash panel insert

F1	Oil pressure switch
G	Fuel gauge sender
G1	Fuel gauge
G22	Speedometer sender
G266	Oil level and oil temperature sender
J285	Control unit in dash panel insert
J519	Onboard supply control unit
K3	Oil pressure warning lamp
K29	Glow period warning lamp
K105	Reserve fuel warning lamp
SB7	Fuse 7 on fuse holder
T6v	6-pin connector, green, on left of bulkhead
T11a	11-pin connector, white, on left of bulkhead
T11b	11-pin connector, red, on left of bulkhead
T14	14-pin connector, in left engine compartment
T32a	32-pin connector
269	Earth connection (sender earth) 1, in dash panel wiring harness
*	is dropped in vehicles with ABS
**	from November 2006 models without ABS only

VW POLO 2004 Overview of control units

Overview of control units    

1 -	Convenience system central control unit -J393-

q	Fitting location → Page 804/5

q	Connectors → Page 804/6

2 -	Control unit in dash panel insert -J285-

q	Connector T32a → Page 804/7

q	Connector T8c → Page 804/9

3 -	Rear right door control unit -J389-

q	To November 2007, Fitting Locations → Page 804/10

q	From November 2007, Fitting Locations → Page 804/11

4 -	Sliding sunroof adjustment control unit -J245-

q	⇒ Workshop manual; Body; General body repairs, exterior; Repair group 60

5 -	Parking aid control unit -J446-

q	Fitting location → Page 804/12

q	Connectors → Page 804/13

6 -	Fuel pump control unit -J538-

q	Fitting location → Page 804/14

Polo	Fitting Locations	No.  804 / 2

7 -	Rear left door control unit -J388-

q	To November 2007, Fitting Locations → Page 804/15

q	From November 2007, Fitting Locations → Page 804/16

8 -	Driver door control unit -J386-

q	To November 2007, Fitting Locations → Page 804/15

q	From November 2007, Fitting Locations → Page 804/16

9 -	Heated driver seat control unit -J131- or heated front seats control unit -J774-

q	Heated driver seat control unit -J131-

q	Fitting location → Page 804/17

q	Heated front seats control unit -J774-

q	Fitting location → Page 804/17

10 -	Folding exterior mirror control unit -J351-

q	⇒ Fitting locations; Relay assignment; Relay carrier (15 slot) page 803/2 position -1-2-

11 -	Dipped headlight control unit, on/off (Coming home system) -J665-

q	⇒ Fitting locations; Relay assignment; Relay carrier (15 slot) page 803/3 position -7-

Polo	Fitting Locations	No.  804 / 3

12 -	Onboard supply control unit -J519-

q	Fitting location → Page 804/18

q	Connectors → Page 804/19

13 -	Climatronic control unit -J255-

q	⇒ Workshop manual; Heating; Air conditioning System; Heating, air conditioning system; Repair group 87

14 -	Air conditioning system control unit -J301-

q	⇒ Workshop manual; Heating; Air conditioning System; Heating, air conditioning system; Repair group 87

15 -	Airbag control unit -J234-

q	Fitting location → Page 804/20

q	Connector, models with no side airbag → Page 804/21

q	Connector, models with side airbag → Page 804/22

16 -	Mobile telephone operating electronics control unit -J412-

q	Fitting location → Page 804/23

q	Connectors → Page 804/24

17 -	Fresh air blower control unit -J126-

q	⇒ Workshop manual; Heating; Air conditioning System; Heating, air conditioning system; Repair group 87

Polo	Fitting Locations	No.  804 / 4

18 -	Front passenger door control unit -J387-

q	To November 2007, Fitting Locations → Page 804/10

q	From November 2007, Fitting Locations → Page 804/11

19 -	Heated front passenger seat control unit -J132-

q	Fitting location → Page 804/17

q	Discontinued from November 2005

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

q	⇒ Workshop manual; Vehicle electrics; Communication; Repair group 91

Polo	Fitting Locations	No.  804 / 5

Convenience system central control unit -J393- Fitting location: Under dash panel ⇒ Position 2

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  804 / 6

Connectors convenience system central control unit -J393-

A -	Convenience system central control unit

Multi-pin connections:

B -	Connector -T12i-

q

Brown

C -	Connector -T23-

D -	Connector -T12c-

q

Black

Polo	Fitting Locations	No.  804 / 7

VW POLO 2004 32-pin connector,T32a, on dash panel insert -J285- 32-pin connector,T32a, on dash panel insert -J285-  -  30  -  1 - Immobilizer reader coil  -  2 - Main beam warning lamp  -  3 - Dipped beam warning lamp  -  4 - Vacant  -  5 - Speed signal-output  -  6 - Speed signal-input  -  7 - CAN l (engine)  -  8 - CAN h (engine)  -  9 - CAN l (convenience)  -  10 - CAN h (convenience)  -  11 - Multifunction display  -  12 - Multifunction display  -  13 - Vacant  -  14 - Vacant  -  15 - Fuel gauge sender

Polo	Fitting Locations	No.  804 / 8

-  16 - Coolant shortage indicator sender  -  17 - Immobilizer reader coil  -  18 - Rear fog light warning lamp  -  19 - Fog light warning lamp  -  20 - Belt switch warning lamp  -  21 - Handbrake warning  -  22 - Brake fluid level warning contact  -  23 - Oil pressure switch  -  24 - Wake-up  -  25 - Vacant  -  26 - Vacant  -  27 - Multifunction display  -  28 - Vacant  -  29 - Vacant  -  30 - Windscreen washer fluid level sender  -  31 - Ambient temperature sensor  -  32 - Terminal 31 for sender-output

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  804 / 9

VW POLO 2004 8-pin connector, T8c, on dash panel insert -J285- 8-pin connector, T8c, on dash panel insert -J285-  -  1 - Brake pad warning lamp  -  2 - Vacant  -  3 - Vacant  -  4 - Right parking light  -  5 - Terminal 15 - input  -  6 - Left parking light  -  7 - Terminal 30 - input  -  8 - Terminal 31 - input

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  804 / 10

VW POLO 2004 Right door control unit, to November 2007

Right door control unit, to November 2007

Front passenger door control unit -J387-

A -	Front passenger door control unit

Multi-pin connections:

B -	Connector -T8i-

C -	Not assigned

Rear right door control unit -J389-

A -	Rear right door control unit

Multi-pin connections:

B -	Connector -T8k-

C -	Not assigned

Polo	Fitting Locations	No.  804 / 11

VW POLO 2004 Right door control unit, from November 2007

Right door control unit, from November 2007

Front passenger door control unit -J387-

A -	Front passenger door control unit

Multi-pin connections:

B -	Connector -T16f-

Rear right door control unit -J389-

A -	Rear right door control unit

Multi-pin connections:

B -	Connector -T16h-

Polo	Fitting Locations	No.  804 / 12

VW POLO 2004 Parking aid control unit -J446- Parking aid control unit -J446- Fitting location: On right behind luggage compartment side trim 1 -  Parking aid control unit -J446- 2 -  Rear parking aid warning buzzer -H15- A -  16-pin connector -T16d- B -  12-pin connector -T12n- C -  2-pin connector -T2aa-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  804 / 13

Connectors for parking aid control unit -J446-

A -	Parking aid control unit

Connectors:

B -	Connector -T12n-

C -	Not assigned

D -	Connector -T16d-

Polo	Fitting Locations	No.  804 / 14

VW POLO 2004 Fuel pump control unit -J538-

Fuel pump control unit -J538-

Fitting location:

Under rear bench seat ⇒ -arrow-

Polo	Fitting Locations	No.  804 / 15

VW POLO 2004 Left door control unit, to November 2007

Left door control unit, to November 2007

Driver door control unit -J386-

A -	Driver door control unit

Multi-pin connections:

B -	Pin connector -T8h-

C -	Connector -T6aa-

Rear left door control unit -J388-

A -	Rear left door control unit

Multi-pin connections:

B -	Connector -T8j-

C -	Not assigned

Polo	Fitting Locations	No.  804 / 16

VW POLO 2004 Left door control unit, from November 2007

Left door control unit, from November 2007

Driver door control unit -J386-

A -	Driver door control unit

Multi-pin connections:

B -	Connector -T16e-

Rear left door control unit -J388-

A -	Rear left door control unit

Multi-pin connections:

B -	Connector -T16g-

Polo	Fitting Locations	No.  804 / 17

VW POLO 2004 Heated driver seat control unit -J131- Heated driver seat control unit -J131- Fitting location: On driver seat frame ⇒ -arrow- VW POLO 2004 Heated front passenger seat control unit -J132- Heated front passenger seat control unit -J132- Fitting location: On seat frame, front passenger side ⇒ -arrow-   Notes: t  Illustration shows driver side. The front passenger side is similar. t  Heated driver seat control unit - J131 - or Heated front passenger seat control unit - J132 - will be discontinued from November 2005 and will be replaced by Heated front seats control unit - J774

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

VW POLO 2004 Heated front seats control unit -J774- Heated front seats control unit -J774- Fitting location: On driver seat frame ⇒ -arrow-   Note: The Heated front seats control unit -J774- will replace from November 2005 the heated driver seat control unit -J131- and the heated front passenger seat control unit -J132-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  804 / 18

VW POLO 2004 Onboard supply control unit -J519-

Onboard supply control unit -J519-

Fitting location:

Under dash panel ⇒ Position 1

Polo	Fitting Locations	No.  804 / 19

Connectors on onboard supply control unit -J519-

XP1 - Connector -T6o-

t

Black

XP2 - Connector -T6j-

t

Brown

XP3 - Connector -T6x-

t

White

XP4 - Connector -T5a-

t

Black

XP5 - Connector -T5c-

t

Brown

XS1 - Connector -T6c-

t

Black

XS2 - Connector -T18b-

t

Black

XS3 - Connector -T6y-

t

Brown

XS4 - Connector -T18a-

t

Brown

XS5 - Connector -T6k-

t

Red

XS6 - Connector -T16a-

t

Black

Polo	Fitting Locations	No.  804 / 20

VW POLO 2004 Airbag control unit -J234- Airbag control unit -J234- Fitting location: Under centre console at front ⇒ -arrow-   Note: Earth connection via housing for vehicle earth!

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  804 / 21

Connectors on airbag control unit -J234- Models with no side airbag

A -	Airbag control unit

Pin connector:

B -	Connector -T50-

Polo	Fitting Locations	No.  804 / 22

Connectors on airbag control unit -J234- Models with no side airbag

A -	Airbag control unit

Pin connector:

B -	Connector -T75-

Polo	Fitting Locations	No.  804 / 23

VW POLO 2004 Mobile telephone operating electronics control unit -J412- Mobile telephone operating electronics control unit -J412- Fitting location: On right A-pillar

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  804 / 24

A -	Mobile telephone operating electronics control unit

Multi-pin connections:

B -	Connector -T18-

C -	Connector -T20a-

q	Connection for cable to mobile phone

VW POLO 2004

VW POLO 2004 Coupling station rear lid

Coupling station rear lid

Fitting location:

On left C-pillar

1 -	5-pin connector, vacant

2 -	5-pin connector -T5b-, brown

3 -	5-pin connector -T5e-, black

 

VW POLO 2004 coupling station heater, air conditioning system coupling station heater, air conditioning system Fitting location: Near fresh air blower 1 -  2-pin connector -T2i-, black 2 -  10-pin connector -T10c-, black 3 -  2-pin connector -T2-, black

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  806 / 4

VW POLO 2004 Coupling station driver seat Coupling station driver seat Fitting location: under seat 1 -  Vacant 2 -  Connector -T6z- 3 -  Connector -T6g- 4 -  Vacant 5 -  Connector -T3p- 6 -  Connector -T12g- 7 -  Connector -T4a-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

VW POLO 2004 coupling station front passenger seat coupling station front passenger seat Fitting location: under seat 1 -  Vacant 2 -  Vacant 3 -  Connector -T6d- 4 -  Vacant 5 -  Connector -T3r- 6 -  Vacant 7 -  Connector -T4c-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  806 / 5

VW POLO 2004 Coupling station bulkhead (14-pin)

Coupling station bulkhead (14-pin)

Pin connector:

A -	Connector -T8x-

q

Orange

B -	Connector -T6n-

q

Blue

C -	Connector -T6r-

q

Brown

D -	Connector -T11a-

q

White

E -	Connector -T6v-

q

Green

F -	Connector -T3a-

q

Grey

G -	Connector -T6q-

q

Red

Polo	Fitting Locations	No.  806 / 6

H -	Not assigned

I -	Connector -T11c-

q

Blue

K -	Connector -T11b-

q

Red

L -	Connector -T11d-

q

Brown

M -	Connector -T9a-

q

Yellow

N -	Connector -T6w-

q

Orange

P -	Connector -T12a-

q

White

Polo	Fitting Locations	No.  806 / 7

VW POLO 2004 Coupling station left in engine compartment Coupling station left in engine compartment Fitting location: t  Near suspension tower 1 -  2-pin connector -T2g-, glow plugs (engine codes ASY, AXR AMF, ASZ) 2 -  14-pin connector -T14-, black

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

VW POLO 2004 Coupling station, on right in engine compartment Coupling station, on right in engine compartment Fitting location: t  Near suspension tower 1 -  2-pin connector, charge pressure control solenoid valve* 2 -  2-pin connector, activated charcoal filter system solenoid valve* 3 -  2-pin connector, coolant shortage indicator sender * 4 -  6-pin connector, Lambda probe before catalytic converter* 5 -  2-pin connector, temperature sensor after DPF* 6 -  2-pin connector, temperature sensor before DPF* 7 -  2-pin connector, exhaust gas temperature sensor* * -  Not with all levels of equipment

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

VW POLO 2004 Overview of all earth points

Overview of all earth points    

671 -

Earth point 1, on front of left longitudinal member

q	Fitting location → Page 801/3

12 -	Earth point, on left in engine compartment

q	Fitting location → Page 801/3

652 -

Earth point, engine and gearbox earth

q	Fitting location → Page 801/4

11 -	Earth point, in battery box

q	Fitting location → Page 801/4

640 -

Earth point 2, in engine compartment

q	Fitting location → Page 801/4

29 -	Earth point, on left in engine compartment, behind battery

q	Fitting location → Page 801/4

606 -

Earth point, under centre console, near selector lever

q	Fitting location → Page 801/6

61 -	Earth point, on left C-pillar

q	Fitting location → Page 801/4

Polo	Fitting Locations	No.  801 / 2

14 -	Earth point, on gearbox (depends on equipment)

q	Fitting location → Page 801/3

13 -	Earth point, on right in engine compartment

q	Fitting location → Page 801/5

15 -	Earth point, on cylinder head (depends on equipment)

q	Fitting location → Page 801/5

614 -

Earth point 2, on right in engine compartment

q	Fitting location → Page 801/5

610 -

Earth point (audio), at front under centre console

q	Fitting location → Page 801/6

637 -

Earth point, airbag control unit

q	Fitting location → Page 801/6

Polo	Fitting Locations	No.  801 / 3

Earth point, in engine compartment 671 - Earth point 1, on front of left longitudinal member   Note: Discontinued, from 2006

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

12 - Earth point, on left in engine compartment 14 - Earth point, on gearbox   Note: Depends on equipment

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  801 / 4

652 - Earth point for engine and gearbox earth 11 - Earth point, in battery box 640 - Earth point 2, in engine compartment

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

29 - Earth point, on left in engine compartment behind battery 61 - Earth point, left C-pillar

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  801 / 5

13 - Earth point, on right in engine compartment   Note: Discontinued, from 2006

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

614 - Earth point 2, on right in engine compartment 15 - Earth point, on cylinder head   Note: Depends on equipment

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  801 / 6

VW POLO 2004 Earth points, in interior Earth points, in interior 637 - Earth point, airbag control unit   Note: Earth connection via housing for vehicle earth! 610 - Earth point (audio), under front of centre console   Note: Discontinued from November 2006 606 - Earth point, under centre console near gear stick

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

VW POLO 2004 Overview of relay carrier locations

Overview of relay carrier locations    

1 -	Relay carrier (15-pin)

q	Vehicles from November 2001

q	Fitting location → Chapter

q	Vehicles from May 2005

q	Fitting location → Chapter

q	Vehicles from May 2008

q	Fitting​ location​ → Chapter

Polo	Fitting Locations	No.  803 / 2

Relay carrier (15 slot), from November 2001

1 -	Driving school mode relay -746-

2 -	Not assigned

3 -	Glow plug relay -J52- (100)

3 -	Motronic current supply relay -J271- (103)

q	Only engine code AXU

4 -	Fuel pump relay -J17- (53)

q	Diesel engines

5 -	Warning lamps relay -J560- (449)

6 -	Headlight washer system -J39- (53)

7 -	Starter inhibitor relay -J207- (126)

8 -	Low heat output relay -J359- (53)

9 -	High heat output relay -J360- (100)

Polo	Fitting Locations	No.  803 / 3

10 -	Motronic current supply relay -J271- (100) or (429)

10 -	Current supply relay -J16- (429)

10 -	Current supply relay -J16- (53)

11 -	X-contact relief relay -J59- (18)

12 -	Fuel supply relay -J643- (404)

13 -	Fuel pump relay -J17- (167)

q	Petrol engines

14 -

Fuses

q	Only diesel

q	S276 - 40A

q	S277 - 40A

q	S278 - 40A

15 -	Diesel direct injection system relay -J317- (109)

Polo	Fitting Locations	No.  803 / 4

VW POLO 2004 Relay carrier (15 slot), from May 2005

Relay carrier (15 slot), from May 2005

1 -	Secondary air pump relay -J299-

q	Only engine code BJX

1 -	Folding exterior mirror control unit -J351- (361)

2 -	Folding exterior mirror control unit -J351- (361)

2 -	Driving school mode relay -J746-

3 -	Glow plug relay -J52- (103)

q	Diesel engines

q	Not engine code BLT

3 -	Motronic current supply relay -J271- (100)

q	Only engine code AXU

4 -	Fuel pump relay -J17- (53)

q	Diesel engines

5 -	Door warning lamps relay -J560- (449)

5 -	Brake light suppression relay -J508- (489)

q	November 2005 to November 2006

6 -	Headlight washer system relay -J39- (53)

Polo	Fitting Locations	No.  803 / 5

7 -	Dipped headlight control unit, on/off (coming home system) -J665- (449)

8 -	Low heat output relay -J359- (53)

q	Diesel engines

8 -	Coolant pump relay -J235- (53)

q	Only engine code BJX

9 -	High heat output relay -J360- (100)

q	Diesel engines

10 -	Motronic current supply relay -J271- (429)

q	Only engine codes BMD and BME

10 -	Radiator fan relay -J26- (53)

q	Only engine codes ASZ and BLT

11 -	X-contact relief relay -J59- (100)

12 -	Fuel supply relay -J643- (404)

q	Petrol engines

q	Only engine codes BMD and BXU

Polo	Fitting Locations	No.  803 / 6

13 -	Fuel pump relay -J17- (167)

q	Petrol engines

q	Not engine code AXU

14 -

Fuses

q	Diesel engines

q	S276 - Heater element fuse 1 - 40A

q	S277 - Heater​ element​ fuse​ 2 - 40A

q	S278 - Heater​ element​ fuse​ 3 - 40A

15 -	Terminal 30 voltage supply relay -J317- (109)/(643)

q	Diesel engines

q	Petrol engines with engine code BJX or BUD

15 -	Starter inhibitor relay -J207- (53)

q	Petrol engines

q	Only engine code BKY with automatic gearbox

15 -	Motronic current supply relay -J271- (109)

q	Only engine codes BUD and BTS

15 -	Fuel pump relay -J17- (167)/(447)

q	Only engine codes BMD and BME

Polo	Fitting Locations	No.  803 / 7

VW POLO 2004 Relay carrier (15 slot), from May 2008

Relay carrier (15 slot), from May 2008

1 -	Secondary air pump relay -J299- (100)

q	Only engine code BJX

1 -	Folding exterior mirror control unit -J351- (361)

2 -	Folding exterior mirror control unit -J351- (361)

2 -	Driving school mode relay -J746- (467)

3 -	Glow plug relay -J52- (100)

q	Diesel engines

q	Only engine codes AXR, BNV, BNM

4 -	Fuel pump relay -J17- (53)

q	Diesel engines

q	Petrol engines ¹)

5 -	Not assigned

6 -	Headlight washer system relay -J39- (53)

¹) Gradual introduction in model year 2008

Polo	Fitting Locations	No.  803 / 8

7 -	Dipped headlight control unit, on/off (coming home system) -J665- (456)

8 -	Low heat output relay -J359- (53)

q	Diesel engines

9 -	High heat output relay -J360- (100)

q	Diesel engines

10 -	Motronic current supply relay -J271- (429)

q	Only engine codes BBM, BZG

10 -	Radiator fan relay -J26- (53)

q	Only engine codes ASZ, BLT

11 -	X-contact relief relay -J59- (100)

12 -	Fuel supply relay -J643- (404)

q	Only engine codes BTS, BUD, BZG

Polo	Fitting Locations	No.  803 / 9

13 -	Fuel pump relay -J17- (53)

q	Petrol engines ¹)

14 -

Fuses

q	Diesel engines

q	S276 - Heater element fuse 1 - 40A

q	S277 - Heater​ element​ fuse​ 2 - 40A

q	S278 - Heater​ element​ fuse​ 3 - 40A

15 -	Terminal 30 voltage supply relay - J317 (643)

q	Diesel engines

15 -	Motronic current supply relay -J271- (643)

q	Petrol engines

q	Not engine codes BUD, BTS

¹) Discontinued with gradual introduction in model year 2008

VW POLO 2004 Overview of all control units

Overview of all control units    

1 -	ABS control unit with EDL -J104-

q	Fitting location → Chapter

2 -	Automatic gearbox control unit -J217-

q	Fitting location → Chapter

3 -	Glow plug activation control unit -J370-

q	Fitting location → Chapter

3 -	Automatic glow period control unit -J179-

q	Fitting location → Chapter

4 -	Power steering control unit -J500-

q	Fitting location → Chapter

5 -	Radiator fan control unit -J293-

q	Fitting location → Chapter

6 -	Engine control units -J248- , -J623- , -J361- , -J220- , -J687- , -J537-

q	Fitting location → Chapter

7 -	NOx sensor control unit -J583-

q	Fitting location → Chapter

Polo	Fitting Locations	No.  805 / 2

ABS control unit -J104- Fitting location: On right of bulkhead in engine compartment ⇒ -1-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  805 / 3

Connectors for ABS control unit -J104-

A -	ABS control unit

Connector:

B -	Connector -T38-

Polo	Fitting Locations	No.  805 / 4

Connectors for ABS control unit -J104-

A -	ABS control unit

Connector:

B -	Connector -T47-

Polo	Fitting Locations	No.  805 / 5

VW POLO 2004 Glow plug activation control unit -J370- / automatic glow period control unit -J179- Fitting location: front left in engine compartment Pin assignment in relay: 1 -  Output glow plug 2 -  Output glow plug 3 -  Output glow plug 4 -  Output glow plug 5 -  Not assigned 6 -  Terminal 15 7 -  Terminal 31 8 -  Not assigned 9 -  Activation 10 -  Activation 11 -  Terminal 30

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  805 / 6

VW POLO 2004 Automatic gearbox control unit -J217- Automatic gearbox control unit -J217- Fitting location: in engine compartment before battery

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  805 / 7

Connectors for automatic gearbox control unit -J217-

A -	Automatic gearbox control unit -J217-

Connector:

B -	Connector -T68-

Polo	Fitting Locations	No.  805 / 8

VW POLO 2004 Power steering control unit -J500- Power steering control unit -J500- Fitting location: In engine compartment, on front of left longitudinal member 1 -  Connector -T4r- 2 -  Connector -T2a- 3 -  Connector, depends on equipment -T3s- or -T4s- 4 -  Engine pump unit

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  805 / 9

VW POLO 2004 Radiator fan control unit -J293- Radiator fan control unit -J293- Fitting location: Front left in engine compartment ⇒ -arrow A-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  805 / 10

VW POLO 2004 NOx sensor control unit -J583- NOx sensor control unit -J583- Fitting location: Under vehicle, near catalytic converter ⇒ -arrow- A -  10-pin connector, black (T10) B -  14-pin connector, black (T14x)

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  805 / 11

VW POLO 2004 Engine control unit - J... Engine control unit - J... Fitting location: On left of bulkhead ⇒ -arrow-

https://portal-diagnostov.com/license.html https://portal-diagnostov.com/license.html Automotive Electricians Portal FZCO Automotive Electricians Portal FZCO Получить доступ ко всем электросхемам автомобиля

Polo	Fitting Locations	No.  805 / 12

Engine control unit - J...   Note: Note: see respective current flow diagram for engine control unit.

-	80-pin connector*

t	Note Connector T80 comprises a 52-pin and a 28-pin connector.

t	* Depending on equipment

t	Connector 121, see 207/12

t	Connector T94 and T60, see 207/13

Polo	Fitting Locations	No.  805 / 13

Engine control unit - J...   Note: Note: see respective current flow diagram for engine control unit.

A -	Engine control unit, 121-pin

Connectors:

B -	81-pin connector

C -	40-pin connector

Note Connector T121 comprises an 81-pin connector and a 40-pin connector.

Polo	Fitting Locations	No.  805 / 14

Engine control unit - J...   Note: Note: see respective current flow diagram for engine control unit.

A -	Engine control unit, 154-pin

Connectors:

B -	94-pin connector

C -	60-pin connector

Note Connector T154 comprises a 94-pin and a 60-pin connector.