VW POLO 2004 — 1.2 l/47 kW, Simos 3PE, engine code AZQ . Wiring diagrams, Pin Connector, Location

Wiring Diagram VW POLO 2004 - Onboard supply control unit - battery - alternator - voltage regulator - starter - radiator fan - thermal switch

A	Battery
B	Starter
C	Alternator
C1	Voltage regulator
D	Ignition/starter switch
F18	Radiator fan thermal switch
J519	Onboard supply control unit
S162	Fuse -1- (30), in battery fuse holder
S180	Fuse -8- (30), in battery fuse holder
T2	2-pin connector, near starter
T2v	2-pin connector
T3i	3-pin connector
T6n	6-pin connector, blue, on left of bulkhead
T11a	11-pin connector, white, on left of bulkhead
T18a	18-pin connector, brown
V7	Radiator fan
1	Earth strap, battery - body
12	Earth point, on left in engine compartment
A41	Positive connection (50), in dash panel wiring harness
*	Not models with an air conditioning system, see respective air conditioning system current flow diagram

Wiring Diagram VW POLO 2004 - Injectors - engine speed sender - intake manifold pressure sender - intake air temperature sender - exhaust gas recirculation potentiometer - Hall sender - coolant temperature sender

G28	Engine speed sender
G40	Hall sender
G42	Intake air temperature sender
G62	Coolant temperature sender
G71	Intake manifold pressure sender
G212	Exhaust gas recirculation potentiometer
J361	Simos control unit
J519	Onboard supply control unit
N18	Exhaust gas recirculation valve
N30	Injector, cylinder 1
N31	Injector, cylinder 2
N32	Injector, cylinder 3
T14	14-pin connector, on left in engine compartment
T121	121-pin connector
283	Earth connection 2, in engine prewiring wiring harness
D140	Connection (injectors), in engine prewiring harness
D141	Connection (5V), in engine prewiring wiring harness

Wiring Diagram VW POLO 2004 - Simos control unit - ignition system

J519	Onboard supply control unit
J361	Simos control unit
N70	Ignition coil 1 with output stage
N127	Ignition coil 2 with output stage
N291	Ignition coil 3 with output stage
P	Spark plug connectors
Q	Spark plugs
T4b	4-pin connector, on ignition coil 1
T4l	4-pin connector, on ignition coil 2
T4m	4-pin connector, on ignition coil 3
T14	14-pin connector, on left in engine compartment
T121	121-pin connector
8	Earth strap, cylinder head cover - ignition coil
281	Earth connection -1-, in engine pre-wiring harness
F2	Positive connection (87a), in FEI wiring harness
*	From November 2002 applies only to models not fitted with ABS

Wiring Diagram VW POLO 2004 - Onboard supply control unit - Simos control unit - throttle valve control module - accelerator pedal position sender

E45	Cruise control system (CCS) switch
G79	Accelerator pedal position sender
G185	Accelerator pedal position sender -2-
G186	Throttle valve drive (electrically operated throttle)
G187	Throttle valve drive angle sender -1- (electrically operated throttle)
G188	Throttle valve drive angle sender -2- (electrically operated throttle)
J338	Throttle valve control module
J361	Simos control unit
J519	Onboard supply control unit
T6t	6-pin connector
T6u	6-pin connector
T11a	11-pin connector, white, on left of bulkhead
T11c	11-pin connector, blue, on left of bulkhead
T14	14-pin connector, on left in engine compartment
T121	121-pin connector
F2	Positive connection (87a), in FEI wiring harness
G9	Connection, in Simos wiring harness
*	Applies only to models with cruise control system (CCS)

Wiring Diagram VW POLO 2004 - Simos control unit - lambda probe - lambda probe after catalytic converter - active charcoal filter system solenoid valve 1 - lambda probe heating

G39	Lambda probe
G130	Lambda probe after catalytic converter
J361	Simos control unit
J519	Onboard supply control unit
N80	Active charcoal filter system solenoid valve 1
T2z	2-pin connector, on solenoid valve
T4k	4-pin connector, near lambda probe after catalyst
T6z	6-pin connector, near lambda probe
T11a	11-pin connector, white, on left of bulkhead
T11b	11-pin connector, red, on left of bulkhead
T16a	16-pin connector
T121	121-pin connector
Z19	Lambda probe heating
Z29	Lambda probe 1 heating, after catalytic converter
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
E29	Connection, in engine wiring harness
E30	Connection (87a), in engine wiring harness
*	Up to May 2002

Wiring Diagram VW POLO 2004 - Simos control unit - knock sensor - brake light switch - clutch pedal switch - crankcase breather heater element

F	Brake light switch
F36	Clutch pedal switch
F47	Cruise control system brake pedal switch
G61	Knock sensor
J361	Simos control unit
J519	Onboard supply control unit
N79	Heater element (crankcase breather)
SB26	Fuse -26- in fuse box
T2e	2-pin connector
T4d	4-pin connector
T4h	4-pin connector
T6n	6-pin connector, blue, on left of bulkhead
T11c	11-pin connector, blue, on left of bulkhead
T121	121-pin connector
29	Earth point, on left in engine compartment, behind battery
131	Earth connection -2-, 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 May 2002

Wiring Diagram VW POLO 2004 - Onboard supply control unit - data bus diagnostic interface - Simos control unit - fuel supply relay - fuel pump relay - fuses - diagnostic socket

D	Ignition and starter switch
J17	Fuel pump relay
J361	Simos control unit
J519	Onboard supply control unit
J533	Data bus diagnostic interface
J643	Fuel supply relay
SB4	Fuse -4- on fuse holder
SB5	Fuse -5- on fuse holder
SB37	Fuse -37- in fuse box
T6n	6-pin connector, blue, on bulkhead
T6r	6-pin connector, brown, on left of bulkhead
T11a	11-pin connector, white, on left of bulkhead
T16a	16-pin connector, brown
T16b	16-pin connector, diagnostic socket
T18a	18-pin connector, brown
T121	16-pin connector
TV2	Terminal 30 wiring junction
A15	Positive connection (15), in instruments wiring harness
A40	Positive connection-1- (30), in instruments wiring harness
A52	Positive connection -2- (30), in dash panel wiring harness
A76	Connection (diagnosis wire K), in dash panel wiring harness
A151	Connection -4- (87), in dash panel wiring harness
B169	Positive connection -1- (30), in interior wiring harness
*	Dependent on equipment level, see fitting locations

Wiring Diagram VW POLO 2004 - Simos control unit - control unit with display in dash panel insert - Motronic current supply relay - oil pressure switch - oil pressure warning lamp

D	Ignition and starter switch
F1	Oil pressure switch
G21	Speedometer
J271	Motronic current supply relay
J285	Control unit with display in dash panel insert
J361	Simos control unit
J519	Onboard supply control unit
K3	Oil pressure warning lamp
SB9	Fuse -9- on fuse holder
SB14	Fuse -14- on fuse holder
SB17	Fuse -17- on fuse holder
SB25	Fuse -25- on fuse holder
SB41	Fuse -41- in fuse holder
T6r	6-pin connector, brown, on left of bulkhead
T11b	11-pin connector, red, on bulkhead
T11c	11-pin connector, blue, on left of bulkhead
T14	14-pin connector, on left in engine compartment
T32a	32-pin connector
T121	121-pin connector
80	Earth connection -1-, in instruments wiring harness
606	Earth point, under centre console near gearstick
A27	Connection (speed signal), in dash panel wiring harness
A38	Positive connection -2- (15a), in dash panel wiring harness
A99	Connection -1- (87), in dash panel wiring harness
B169	Positive connection -1- (30), in interior wiring harness

Wiring Diagram VW POLO 2004 - Fuel gauge sender - fuel gauge - fuel pressurising pump - speedometer sender - warning lamps - oil level and oil temperature sender

G	Fuel gauge sender
G1	Fuel gauge
G6	Fuel pump (delivery pump)
G22	Speedometer sender
G266	Oil level and oil temperature sender
J285	Control unit with display in dash panel insert
J519	Onboard supply control unit
K83	Exhaust emissions warning lamp
K105	Reserve fuel warning lamp
K132	Electric power control fault lamp
SB7	Fuse -7- on fuse holder
T3l	3-pin connector
T4j	4-pin connector
T6v	6-pin connector, 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, on left in engine compartment
T32a	32-pin connector
81	Earth connection -1-, in dash panel wiring harness
269	Earth connection (sender earth) -1-, in dash panel wiring harness
606	Earth point, under centre console near gearstick
*	From November 2002 applies only to models not fitted with ABS

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

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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

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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

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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-

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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

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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-

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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!

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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

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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

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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-

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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-

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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

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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

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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

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

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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

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

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Polo	Fitting Locations	No.  801 / 5

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

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

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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

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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-

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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

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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

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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

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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-

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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)

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Polo	Fitting Locations	No.  805 / 11

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

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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.

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