Wiring Diagram VW POLO 2005 - Fuses

| J519 | Onboard supply control unit |
| S163 | Fuse 2 (30), in fuse holder on battery |
| SB24 | Fuse 24 on fuse holder |
| SB31 | Fuse 31 on fuse holder |
| SB35 | Fuse 35 on fuse holder |
| SB38 | Fuse 38 on fuse holder |
| SB39 | Fuse 39 on fuse holder |
| SB53 | Fuse 53 on fuse holder |
| T3a | 3-pin connector, grey, on left of bulkhead |
| A32 | Positive connection (30), in dash panel wiring harness |
| A40 | Positive connection 1 (30), in dash panel wiring harness |
| B170 | Positive connection 2 (30), in interior wiring harness |
Wiring Diagram VW POLO 2005 - Fuses - alarm - convenience system central control unit
| D | Ignition/starter switch |
| H12 | Alarm horn |
| J393 | Convenience system central control unit |
| J519 | Onboard supply control unit |
| SB8 | Fuse 8 on fuse holder |
| SB18 | Fuse 18 on fuse holder |
| SB33 | Fuse 33 on fuse holder |
| SB50 | Fuse 50 on fuse holder |
| T12i | 12-pin connector |
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| 86 | Earth connection 1, in rear wiring harness |
| A20 | Positive connection (15a), 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 |
| B170 | Positive connection 2 (30), in interior wiring harness |
Wiring Diagram VW POLO 2005 - Interior monitoring deactivation switch - anti-theft alarm ultrasonic sensor - convenience system central control unit
| E267 | Interior monitoring deactivation switch |
| G209 | Anti-theft alarm ultra-sonic sensor |
| J393 | Convenience system central control unit |
| J519 | Onboard supply control unit |
| K162 | Interior monitoring off warning lamp |
| L118 | Deactivation of interior monitoring system switch illumination bulb |
| T5a | 5-pin connector, black |
| T6j | 6-pin connector, brown |
| T12i | 12-pin connector |
| T16b | 16-pin connector, diagnosis connection |
| T18a | 18-pin connector, brown |
| T23 | 23-pin connector |
| 110 | Earth connection 2, in dash panel wiring harness |
| 238 | Earth connection 1, in interior wiring harness |
| 439 | Earth connection 3, in dash panel wiring harness |
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| A23 | Connection (30al), in dash panel wiring harness |
| A29 | Connection (interior light), in dash panel wiring harness |
| A66 | Connection (30a, CL/ATA/IR), in dash panel wiring harness |
| A76 | Connection (K-diagnosis wire), in dash panel wiring harness |
Wiring Diagram VW POLO 2005 - Driver side interior locking switch - driver side central locking lock unit - central locking deadlock function warning lamp -SAFE-
| E20 | Illumination regulator, switches, instruments |
| E102 | Headlight range control regulator |
| E150 | Driver side interior locking switch |
| F220 | Driver side central locking lock unit |
| J393 | Convenience system central control unit |
| J519 | Onboard supply control unit |
| K133 | Central locking deadlock function warning lamp |
| L53 | Window regulator switch illumination bulb |
| T18a | 18-pin connector, brown |
| T21 | 21-pin connector, brown, on left A-pillar |
| T23 | 23-pin connector |
| 80 | Earth connection 1, in dash panel wiring harness |
| 205 | Earth connection, in driver door wiring harness |
| A4 | Positive connection (58b), in dash panel wiring harness |
Wiring Diagram VW POLO 2005 - Front passenger side central locking lock unit - tank filler flap locking motor - convenience system central control unit
Wiring Diagram VW POLO 2005 - Rear left central locking lock unit - rear right central locking lock unit
| F222 | Rear left central locking lock unit |
| F223 | Rear right central locking lock unit |
| J393 | Convenience system central control unit |
| J519 | Onboard supply control unit |
| T6h | 6-pin connector, brown, on left B-pillar |
| T6i | 6-pin connector, brown, on right B-pillar |
| T6l | 6-pin connector, black, on left B-pillar |
| T6m | 6-pin connector, black, on right B-pillar |
| T12c | 12-pin connector |
| T18a | 18-pin connector, brown |
| 80 | Earth connection 1, in dash panel wiring harness |
| 135 | Earth connection 2, in dash panel wiring harness |
Wiring Diagram VW POLO 2005 - Sliding sunroof adjustment regulator - sliding sunroof buttons - sliding sunroof motor - convenience system central control unit - sliding sunroof adjustment control unit
| E139 | Sliding sunroof adjustment regulator |
| E325 | Sunroof button |
| J245 | Sliding sunroof adjustment control unit |
| J285 | Display control unit in dash panel insert |
| J393 | Convenience system central control unit |
| J519 | Onboard supply control unit |
| T6 | 6-pin connector |
| T6e | 6-pin connector |
| T18b | 18-pin connector |
| T23 | 23-pin connector |
| T32a | 32-pin connector |
| V1 | Sliding sunroof motor |
| 80 | Earth connection 1, in dash panel wiring harness |
| 81 | Earth connection 1, in dash panel wiring harness |
| 135 | Earth connection 2, in dash panel wiring harness |
| 199 | Earth connection 3, in dash panel wiring harness |
| 332 | Earth connection 4, in dash panel wiring harness |
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| A27 | Connection (speed signal), in dash panel wiring harness |
| A146 | Connection (convenience CAN bus, high), in dash panel wiring harness |
| A147 | Connection (convenience CAN bus, low), in dash panel wiring harness |
Wiring Diagram VW POLO 2005 - Window regulator switch - driver door control unit - driver window regulator motor
| E39 | Rear window regulator isolation switch |
| E40 | Front left window regulator switch |
| E53 | Rear left window regulator switch, in driver door |
| E55 | Rear right window regulator switch, in driver door |
| E81 | Front right window regulator switch, in driver door |
| J386 | Driver door control unit |
| J519 | Onboard supply control unit |
| L53 | Window regulator switch illumination bulb |
| T4m | 4-pin connector, black, on left A-pillar |
| T8h | 8-pin connector |
| T12d | 12-pin connector |
| T21 | 21-pin connector, brown, on left A-pillar |
| V147 | Driver side window regulator motor |
| 199 | Earth connection 3, in dash panel wiring harness |
| 267 | Earth connection 2, in driver door wiring harness |
| A146 | Connection (convenience CAN bus, high), in dash panel wiring harness |
| A147 | Connection (convenience CAN bus, low), in dash panel wiring harness |
| R51 | Connection (58b), in driver side door wiring harness |
Wiring Diagram VW POLO 2005 - Mirror adjustment switch - driver door control unit - driver mirror adjustment motor
| E43 | Mirror adjustment switch |
| E48 | Mirror adjustment changeover switch |
| E231 | Exterior mirror heater button |
| J99 | Heated exterior mirror relay, in onboard supply control unit |
| J386 | Driver door control unit |
| J519 | Onboard supply control unit |
| L78 | Mirror adjustment switch illumination bulb |
| T6x | 6-pin connector, white |
| T8h | 8-pin connector |
| T12d | 12-pin connector |
| T12k | 12-pin connector |
| T21 | 21-pin connector, brown, on left A-pillar |
| V17 | Mirror adjustment motor (driver side) |
| V149 | Driver side mirror adjustment motor |
| Z4 | Driver side heated exterior mirror |
| 267 | Earth connection 2, in driver door wiring harness |
Wiring Diagram VW POLO 2005 - Front passenger window regulator switch - front passenger door control unit - front passenger mirror adjustment motor - window regulator motor
| E107 | Window regulator switch, in front passenger door |
| J387 | Front passenger door control unit |
| J519 | Onboard supply control unit |
| L53 | Window regulator switch illumination bulb |
| T4n | 4-pin connector, black, on right A-pillar |
| T6p | 6-pin connector |
| T6x | 6-pin connector |
| T8i | 8-pin connector |
| T12f | 12-pin connector |
| T21a | 21-pin connector, brown, on right A-pillar |
| V25 | Mirror adjustment motor (front passenger side) |
| V148 | Front passenger side window regulator motor |
| V150 | Front passenger side mirror adjustment motor |
| Z5 | Front passenger heated exterior mirror |
| 199 | Earth connection 3, in dash panel wiring harness |
| A146 | Connection (convenience CAN bus, high), in dash panel wiring harness |
| A147 | Connection (convenience CAN bus, low), in dash panel wiring harness |
Wiring Diagram VW POLO 2005 - Door control unit - rear left window regulator switch - rear right window regulator switch - window regulator motor
| E52 | Rear left window regulator switch |
| E54 | Rear right window regulator switch |
| J388 | Rear left door control unit |
| J389 | Rear right door control unit |
| J519 | Onboard supply control unit |
| L53 | Window regulator switch illumination bulb |
| T4o | 4-pin connector, black, on left B-pillar |
| T4p | 4-pin connector, black, on right B-pillar |
| T6l | 6-pin connector, black, on left B-pillar |
| T6m | 6-pin connector, black, on right B-pillar |
| T6s | 6-pin connector |
| T6t | 6-pin connector |
| T8j | 8-pin connector |
| T8k | 8-pin connector |
| V26 | Rear left window regulator motor |
| V27 | Rear right window regulator motor |
| 199 | Earth connection 3, in dash panel wiring harness |
| A146 | Connection (convenience CAN bus, high), in dash panel wiring harness |
| A147 | Connection (convenience CAN bus, low), in dash panel wiring harness |
Wiring Diagram VW POLO 2005 - Luggage compartment light switch - bonnet contact switch - luggage compartment light - central locking switch - rear lid - release button - rear lid handle
| E234 | Rear lid handle release button |
| F5 | Luggage compartment light switch |
| F218 | Rear lid central locking switch |
| F266 | Bonnet contact switch |
| J519 | Onboard supply control unit |
| T2v | 2-pin connector |
| T5b | 5-pin connector, brown, on left C-pillar |
| T5e | 5-pin connector, black, on left C-pillar |
| T5f | 5-pin connector, black, in rear lid |
| T5g | 5-pin connector, brown, in rear lid |
| T6k | 6-pin connector, red |
| T6o | 6-pin connector, black |
| T6v | 6-pin connector, green |
| T16a | 16-pin connector, black |
| W18 | Luggage compartment light on left |
| V53 | Rear lid central locking motor |
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| 98 | Earth connection, in rear lid wiring harness |
| 287 | Earth connection, in rear lid feeder wiring harness |
| Q22 | Connection 1, in rear lid wiring harness |
| * | not with all levels of equipment |
VW POLO 2005 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 2005 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 2005 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 2005 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 2005 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 2005 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 2005 Fuel pump control unit -J538-
Fuel pump control unit -J538- |
| Under rear bench seat ⇒ -arrow- |
VW POLO 2005 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 2005 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 2005 Heated driver seat control unit -J131-
Heated driver seat control unit -J131- | | On driver seat frame ⇒ -arrow- |
VW POLO 2005 Heated front passenger seat control unit -J132-
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VW POLO 2005 Heated front seats control unit -J774-
| VW POLO 2005 Onboard supply control unit -J519- | Onboard supply control unit -J519- |
| Under dash panel ⇒ Position 1 |
Connectors on onboard supply control unit -J519-
VW POLO 2005 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 |
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Connectors on airbag control unit -J234-
| Models with no side airbag |
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VW POLO 2005 Mobile telephone operating electronics control unit -J412-
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