Wiring Diagram VW POLO 2007 - Control unit with display for radio and navigation system - fuses

| D | Ignition/starter switch |
| J503 | Control unit with display for radio and navigation |
| J519 | Onboard supply control unit |
| S163 | Fuse 2 (30), in fuse holder on battery |
| SB10 | Fuse 10 on fuse holder |
| SB18 | Fuse 18 on fuse holder |
| SB51 | Fuse 51 on fuse holder |
| T1d | Single connector, near radio, earth connection for iPod |
| T3a | 3-pin connector, grey, on left of bulkhead |
| T8 | 8-pin connector |
| T10s | 10-pin connector |
| 255 | Earth connection 1, in radio wiring harness |
| |
| A20 | Positive connection (15a), in dash panel wiring harness |
| A21 | Connection (86s), in dash panel wiring harness |
| A104 | Positive connection 2 (15), in dash panel wiring harness |
| B170 | Positive connection 2 (30), interior wiring harness |
| V28 | Connection 1, in radio wiring harness |
| * | Up to November 2006 |
| ** | From November 2006 |
| *** | From November 2007 |
Wiring Diagram VW POLO 2007 - Control unit with display for radio and navigation system - aerial - front loudspeaker
| J503 | Control unit with display for radio and navigation |
| J519 | Onboard supply control unit |
| R1 | Aerial connection |
| R21 | Front left bass loudspeaker |
| R23 | Front right bass loudspeaker |
| R26 | Front left mid-range and treble loudspeaker |
| R27 | Front right mid-range and treble loudspeaker |
| R50 | Navigation system aerial |
| R51 | Radio, telephone and auxiliary heater aerial |
| R52 | Radio, telephone and navigation system aerial |
| R126 | Telephone bracket |
| T1 | Single connector, near roof aerial (radio connection) |
| T1a | Single connector, near roof aerial (GPS connection) |
| T1b | Single connector, near roof aerial (GSM connection) |
| T5m | 5-pin connector, on left A-pillar |
| T5n | 5-pin connector, on right A-pillar |
| T8n | 8-pin connector |
| B189 | Connection (positive, front right loudspeaker), in interior wiring harness |
| B190 | Connection (negative, front right loudspeaker), in interior wiring harness |
| B191 | Connection (positive, front left loudspeaker), in interior wiring harness |
| B192 | Connection (negative, front left loudspeaker), in interior wiring harness |
Wiring Diagram VW POLO 2007 - Mobile telephone operating electronics control unit - control unit with display for radio and navigation - rear loudspeaker
Wiring Diagram VW POLO 2007 - Control unit with display for radio and navigation system - CD changer
| F4 | Reversing light switch |
| J104 | ABS control unit |
| J503 | Control unit with display for radio and navigation |
| J519 | Onboard supply control unit |
| R41 | CD changer |
| T6n | 6-pin connector, blue, on left of bulkhead |
| T6o | 6-pin connector, black |
| T8 | 8-pin connector |
| T8x | 8-pin connector, orange, on left of bulkhead |
| T10s | 10-pin connector |
| T12g | 12-pin connector, on CD changer wiring harness |
| T18b | 18-pin connector, black |
| T20 | 20-pin connector |
| T38 | 38-pin connector |
| T42 | 42-pin connector |
| A146 | Connection (convenience CAN bus, high), in dash panel wiring harness |
| A147 | Connection (convenience CAN bus, low), in dash panel wiring harness |
| B182 | Connection (RL), in interior wiring harness |
| V14 | Connection (screening), in CD changer wiring harness |
| V45 | Connection 2 (screening), in CD changer wiring harness |
| * | Vehicles with automatic gearbox ⇒ Current Flow Diagram for automatic gearbox |
| ** | depends on equipment |
VW POLO 2007 Overview of control units
Overview of control units | | |
| q | From November 2007, Fitting Locations |
| 5 - | Parking aid control unit -J446- |

| 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- |

| 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 |
| Polo | Fitting Locations | No. 804 / 4 | |
| q | From November 2007, Fitting Locations | | q | Discontinued from November 2005 | | Polo | Fitting Locations | No. 804 / 5 | | | Convenience system central control unit -J393- | | Under dash panel ⇒ Position 2 | | |
| Connectors convenience system central control unit -J393- |
| A - | Convenience system central control unit | VW POLO 2007 32-pin connector,T32a, on dash panel insert -J285- | | 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 | | - | 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 | | |
| 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 |
|
| 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 |
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 |
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- |
|
| Connectors for parking aid control unit -J446-
| A - | Parking aid control unit |
VW POLO 2007 Fuel pump control unit -J538-
Fuel pump control unit -J538- |
| Under rear bench seat ⇒ -arrow- |
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 |
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 |
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-
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VW POLO 2007 Heated front seats control unit -J774-
| VW POLO 2007 Onboard supply control unit -J519- | Onboard supply control unit -J519- |
| Under dash panel ⇒ Position 1 |
Connectors on onboard supply control unit -J519-
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! |
|
| Connectors on airbag control unit -J234-
| Models with no side airbag |
| |
Connectors on airbag control unit -J234-
| Models with no side airbag |
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VW POLO 2007 Mobile telephone operating electronics control unit -J412-
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