Wiring Diagram VW POLO 2004 - Onboard supply control unit - battery - alternator - voltage regulator - starter - radiator fan - thermal switch
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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 |
| |
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
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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
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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
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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
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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
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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 |
| |
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
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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
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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 |
| |
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
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VW POLO 2004 Overview of control units
Overview of control units | | |
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q | From November 2007, Fitting Locations |
5 - | Parking aid control unit -J446- |
Polo | Fitting Locations | No. 804 / 2 |
|
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q | From November 2007, Fitting Locations |
q | From November 2007, Fitting Locations |
q | Heated driver seat control unit -J131- |
q | Heated front seats control unit -J774- |
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 |
|
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14 - | Air conditioning system control unit -J301- |
q | ⇒ Workshop manual; Heating; Air conditioning System; Heating, air conditioning system; Repair group 87 |
q | Connector, models with no side airbag |
q | Connector, models with side airbag |
- | 1 - Brake pad warning lamp |
- | 4 - Right parking light |
- | 5 - Terminal 15 - input |
- | 7 - Terminal 30 - input |
- | 8 - Terminal 31 - input |
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Automotive Electricians Portal FZCO すべての配線図にアクセスする車 | VW POLO 2004 Right door control unit, to November 2007
Right door control unit, to November 2007 | Front passenger door control unit -J387- |
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A - | Front passenger door control unit |
Rear right door control unit -J389- |
A - | Rear right door control unit |
VW POLO 2004 Right door control unit, from November 2007
Right door control unit, from November 2007 | Front passenger door control unit -J387- |
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A - | Front passenger door control unit |
Rear right door control unit -J389- |
A - | Rear right door control unit |
VW POLO 2004 Parking aid control unit -J446-
Parking aid control unit -J446- | 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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Automotive Electricians Portal FZCO すべての配線図にアクセスする車 | Connectors for parking aid control unit -J446-
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A - | Parking aid control unit |
VW POLO 2004 Fuel pump control unit -J538-
Fuel pump control unit -J538- |
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Under rear bench seat ⇒ -arrow- |
VW POLO 2004 Left door control unit, to November 2007
Left door control unit, to November 2007 | Driver door control unit -J386- |
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A - | Driver door control unit |
Rear left door control unit -J388- |
A - | Rear left door control unit |
VW POLO 2004 Left door control unit, from November 2007
Left door control unit, from November 2007 | Driver door control unit -J386- |
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A - | Driver door control unit |
Rear left door control unit -J388- |
A - | Rear left door control unit |
VW POLO 2004 Heated driver seat control unit -J131-
Heated driver seat control unit -J131- | On driver seat frame ⇒ -arrow- |
VW POLO 2004 Heated front passenger seat control unit -J132-
Heated front passenger seat control unit -J132- |
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- | 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
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VW POLO 2004 Onboard supply control unit -J519-
Onboard supply control unit -J519- |
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Under dash panel ⇒ Position 1 |
Connectors on onboard supply control unit -J519-
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VW POLO 2004 Airbag control unit -J234-
Airbag control unit -J234- | Under centre console at front ⇒ -arrow- |
Note:
Earth connection via housing for vehicle earth! |
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Automotive Electricians Portal FZCO すべての配線図にアクセスする車 | Connectors on airbag control unit -J234-
Models with no side airbag |
| |
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Connectors on airbag control unit -J234-
Models with no side airbag |
| |
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VW POLO 2004 Mobile telephone operating electronics control unit -J412-
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Automotive Electricians Portal FZCO すべての配線図にアクセスする車 | Polo | Fitting Locations | No. 804 / 24 |
|
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A - | Mobile telephone operating electronics control unit |
VW POLO 2004 | |
VW POLO 2004 Coupling station rear lid
Coupling station rear lid |
1 - | 5-pin connector, vacant |
2 - | 5-pin connector -T5b-, brown |
3 - | 5-pin connector -T5e-, black |
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VW POLO 2004 coupling station heater, air conditioning systemcoupling station heater, air conditioning system | 1 - | 2-pin connector -T2i-, black | 2 - | 10-pin connector -T10c-, black | 3 - | 2-pin connector -T2-, black | | | https://portal-diagnostov.com/license.html
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VW POLO 2004 Coupling station driver seat
Coupling station driver seat | | https://portal-diagnostov.com/license.html
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VW POLO 2004 coupling station front passenger seatcoupling station front passenger seat | | | https://portal-diagnostov.com/license.html
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VW POLO 2004 Coupling station bulkhead (14-pin)
Coupling station bulkhead (14-pin) |
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Polo | Fitting Locations | No. 806 / 6 |
|
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VW POLO 2004 Coupling station left in engine compartment
Coupling station left in engine compartment | 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 compartmentCoupling station, on right in engine compartment | 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
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