Wiring Diagram VW POLO 2007 - Battery - starter - alternator

| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| J519 | Onboard supply control unit |
| S162 | Fuse 1 (30), in battery fuse holder |
| S163 | Fuse 2 (30), in battery fuse holder |
| S176 | Fuse 4 (30), in battery fuse holder |
| S178 | Fuse 6 (30), in battery fuse holder |
| T2 | 2-pin connector, near starter |
| T3a | 3-pin connector, grey, on left on bulkhead |
| T11a | 11-pin connector, white, on left on bulkhead |
| T18a | 18-pin connector, brown |
| 11 | Earth point, in battery box |
| 652 | Earth point, engine and gearbox earth |
| 14 | Earth point, on gearbox |
| B170 | Positive connection 2 (30), in interior wiring harness |
| * | Up to November 2005 |
| ** | From November 2005 |
Wiring Diagram VW POLO 2007 - Ignition/starter switch - radiator fan
| D | Ignition/starter switch |
| J519 | Onboard supply control unit |
| T6n | 6-pin connector, blue, on left on bulkhead |
| T18a | 18-pin connector, brown |
| A2 | Positive connection (15), in dash panel wiring harness |
| A15 | Positive connection (15), in instrument wiring harness |
| A32 | Positive connection (30), in dash panel wiring harness |
| A33 | Connection (75), in dash panel wiring harness |
| A40 | Positive connection 1 (30), in dash panel wiring harness |
| A104 | Positive connection 2 (15), in dash panel wiring harness |
| B170 | Positive connection 2 (30), in interior wiring harness |
Wiring Diagram VW POLO 2007 - Ignition/starter switch - auxiliary heater element
Wiring Diagram VW POLO 2007 - Fuel pump relay - diesel direct injection system control unit - fuses
Wiring Diagram VW POLO 2007 - Clutch pedal switch - accelerator position sender - diesel direct injection system control unit - kickdown switch - brake pedal switch
Wiring Diagram VW POLO 2007 - Coolant temperature sender - intake manifold pressure sender - intake manifold temperature sender - fuel temperature sender - diesel direct injection system control unit
Wiring Diagram VW POLO 2007 - Hall sender - exhaust gas recirculation valve - charge pressure control solenoid valve - heater element for crankcase breather - intake manifold flap change-over valve
Wiring Diagram VW POLO 2007 - Engine speed sender - diesel direct injection system control unit - data bus diagnostic interface - intake manifold flap motor
| G28 | Engine speed 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 on bulkhead |
| T11a | 11-pin connector, white, on left on bulkhead |
| T14 | 14-pin connector, on left in engine compartment |
| T16a | 16-pin connector, black |
| T16b | 16-pin connector, diagnostic connector |
| T18a | 18-pin connector, brown |
| T121 | 121-pin connector |
| V157 | Intake manifold flap motor |
| 29 | Earth point, in engine compartment behind battery |
| 131 | Earth connection 2, in engine compartment wiring harness |
| 250 | Earth connection, in diesel engine prewiring harness |
| A76 | Connection (K-diagnosis wire), 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 |
| * | Only models with engine code AXR |
Wiring Diagram VW POLO 2007 - Cruise control system switch - air mass meter - diesel direct injection system control unit - fuses
| E45 | Cruise control system switch |
| G70 | Air mass meter |
| J248 | Diesel direct injection system control unit |
| J519 | Onboard supply control unit |
| SB5 | Fuse 5 on fuse holder |
| SB7 | Fuse 7 on fuse holder |
| SB17 | Fuse 17 on fuse holder |
| T5l | 5-pin connector |
| T6n | 6-pin connector, blue, on left on bulkhead |
| T11a | 11-pin connector, white, on left on bulkhead |
| T11b | 11-pin connector, red, on left on bulkhead |
| T14 | 14-pin connector, on left in engine compartment |
| T41 | 41-pin connector, on steering column switch |
| T121 | 121-pin connector |
| A130 | Connection (CCS), in dash panel wiring harness |
| A139 | Connection 3 (15) in dash panel wiring harness |
| D52 | Positive connection (15a), in engine compartment wiring harness |
Wiring Diagram VW POLO 2007 - Diesel direct injection system control unit - unit injector valves for cylinders 1-4 - glow plug relay - engine glow plugs
| J52 | Glow plug relay |
| J248 | Diesel direct injection system control unit |
| J519 | Onboard supply control unit |
| N240 | Unit injector valve, No. 1 cyl. |
| N241 | Unit injector valve, No. 2 cyl. |
| N242 | Unit injector valve, No. 3 cyl. |
| N243 | Unit injector valve, No. 4 cyl. |
| Q6 | Engine glow plug |
| T2g | 2-pin connector, near glow plugs |
| T6w | 6-pin connector, grey, on left of bulkhead |
| T8o | 8-pin connector |
| T11a | 11-pin connector, white, on left on bulkhead |
| T11b | 11-pin connector, red, on left on bulkhead |
| 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 |
| D78 | Positive connection 1 (30a), in engine compartment wiring harness |
| * | Up to November 2005 |
| ** | From November 2005 |
| *** | From November 2007 |
Wiring Diagram VW POLO 2007 - Oil pressure switch - fuel gauge - speedometer - oil level and oil temperature sender - dash panel insert - fuel system pressurisation pump
| F1 | Oil pressure switch |
| G | Fuel gauge sender |
| G1 | Fuel gauge |
| G6 | Fuel system pressurisation pump |
| G22 | Speedometer sender |
| G266 | Oil level and oil temperature sender |
| J285 | Control unit in dash panel insert |
| J519 | Onboard supply control unit |
| K | Dash panel insert |
| K2 | Alternator warning lamp |
| K3 | Oil pressure warning lamp |
| K29 | Glow period warning lamp |
| K105 | Reserve fuel warning lamp |
| SB41 | Fuse 41 on fuse holder B |
| T6v | 6-pin connector, green, on left on bulkhead |
| T11a | 11-pin connector, white, on left on bulkhead |
| T11b | 11-pin connector, red, on left on bulkhead |
| T14 | 14-pin connector, on left in engine compartment |
| T32a | 32-pin connector |
| 81 | Earth connection 1, in dash panel wiring harness |
| 199 | Earth connection 3, in dash panel wiring harness |
| 269 | Earth connection (sender earth) 1, in dash panel wiring harness |
| 606 | Earth point, under centre console near gearstick |
| * | Discontinued on models with ABS |
| ** | From November 2006, on models without ABS |
VW POLO 2007 Overview of control units
Overview of control units | | |
| 1 - | Convenience system central control unit -J393- |
| 2 - | Control unit in dash panel insert -J285- |
| 3 - | Rear right door control unit -J389- |
| 4 - | Sliding sunroof adjustment control unit -J245- |
| q | ⇒ Workshop manual; Body; General body repairs, exterior; Repair group 60 |
| 5 - | Parking aid control unit -J446- |
| 6 - | Fuel pump control unit -J538- |
| Polo | Fitting Locations | No. 804 / 2 |
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| 7 - | Rear left door control unit -J388- |
| 8 - | Driver door control unit -J386- |
| 9 - | Heated driver seat control unit -J131- or heated front seats control unit -J774- |
| q | Heated driver seat control unit -J131- |
| q | Heated front seats control unit -J774- |
| 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 |
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| 12 - | Onboard supply control unit -J519- |
| 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- |
| 16 - | Mobile telephone operating electronics control unit -J412- |
| 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 |
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| 18 - | Front passenger door control unit -J387- |
| 19 - | Heated front passenger seat control unit -J132- |
| 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 |
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| Convenience system central control unit -J393- | | Under dash panel ⇒ Position 2 | | |
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| Polo | Fitting Locations | No. 804 / 6 |
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| Connectors convenience system central control unit -J393- |
| A - | Convenience system central control unit |
| Polo | Fitting Locations | No. 804 / 7 |
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VW POLO 2007 32-pin connector,T32a, on dash panel insert -J285-32-pin connector,T32a, on dash panel insert -J285- | | - | 1 - Immobilizer reader coil | | - | 2 - Main beam warning lamp | | - | 3 - Dipped beam warning lamp | | - | 5 - Speed signal-output | | - | 9 - CAN l (convenience) | | - | 10 - CAN h (convenience) | | - | 11 - Multifunction display | | - | 12 - Multifunction display | | | |
| Polo | Fitting Locations | No. 804 / 8 |
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| - | 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 | | - | 22 - Brake fluid level warning contact | | - | 23 - Oil pressure switch | | - | 27 - Multifunction display | | - | 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 |
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VW POLO 2007 8-pin connector, T8c, on dash panel insert -J285-8-pin connector, T8c, on dash panel insert -J285- | | - | 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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| Polo | Fitting Locations | No. 804 / 10 |
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VW POLO 2007 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 |
| Rear right door control unit -J389- |
| A - | Rear right door control unit |
| Polo | Fitting Locations | No. 804 / 11 |
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VW POLO 2007 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 |
| Rear right door control unit -J389- |
| A - | Rear right door control unit |
| Polo | Fitting Locations | No. 804 / 12 |
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VW POLO 2007 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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| Polo | Fitting Locations | No. 804 / 13 |
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| Connectors for parking aid control unit -J446- |
| A - | Parking aid control unit |
| Polo | Fitting Locations | No. 804 / 14 |
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VW POLO 2007 Fuel pump control unit -J538-
Fuel pump control unit -J538- |
| Under rear bench seat ⇒ -arrow- |
| Polo | Fitting Locations | No. 804 / 15 |
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VW POLO 2007 Left door control unit, to November 2007
Left door control unit, to November 2007 |
| Driver door control unit -J386- |
| A - | Driver door control unit |
| Rear left door control unit -J388- |
| A - | Rear left door control unit |
| Polo | Fitting Locations | No. 804 / 16 |
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VW POLO 2007 Left door control unit, from November 2007
Left door control unit, from November 2007 |
| Driver door control unit -J386- |
| A - | Driver door control unit |
| Rear left door control unit -J388- |
| A - | Rear left door control unit |
| Polo | Fitting Locations | No. 804 / 17 |
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VW POLO 2007 Heated driver seat control unit -J131-Heated driver seat control unit -J131- | | On driver seat frame ⇒ -arrow- |
VW POLO 2007 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 2007 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- | | |
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| Polo | Fitting Locations | No. 804 / 18 |
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VW POLO 2007 Onboard supply control unit -J519-
Onboard supply control unit -J519- |
| Under dash panel ⇒ Position 1 |
| Polo | Fitting Locations | No. 804 / 19 |
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| Connectors on onboard supply control unit -J519- |
| Polo | Fitting Locations | No. 804 / 20 |
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VW POLO 2007 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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| Polo | Fitting Locations | No. 804 / 21 |
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| Connectors on airbag control unit -J234- | | Models with no side airbag | | | |
| Polo | Fitting Locations | No. 804 / 22 |
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| Connectors on airbag control unit -J234- | | Models with no side airbag | | | |
| Polo | Fitting Locations | No. 804 / 23 |
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VW POLO 2007 Mobile telephone operating electronics control unit -J412-Mobile telephone operating electronics control unit -J412- | | |
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| Polo | Fitting Locations | No. 804 / 24 |
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| A - | Mobile telephone operating electronics control unit |
| q | Connection for cable to mobile phone |