Wiring Diagram VW POLO 2003 - Battery - Ignition/starter switch - Onboard supply control unit - Fuse 2 (30) - in battery fuse holder - Fuse 10 (30) - in battery fuse holder - Terminal 30 wiring junction
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Automotive Electricians Portal FZCO
Automotive Electricians Portal FZCO A | Battery |
B | Starter |
D | Ignition/starter switch |
E19 | Parking light switch |
J519 | Onboard supply control unit |
SB10 | Fuse 10 on fuse holder B |
S163 | Fuse 2 (30), in battery fuse holder |
S268 | Fuse 10 (30), in battery fuse holder |
T3a | 3-pin connector |
T6n | 6-pin connector |
T12a | 12-pin connector |
T18a | 18-pin connector |
TV2 | Terminal 30 wiring junction |
T41 | 41-pin connector |
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A2 | Positive connection (15), in dash panel wiring harness |
A15 | Positive connection (15), in instrument wiring harness |
A21 | Connection (86s), in dash panel wiring harness |
A32 | Positive connection (30), in dash panel wiring harness |
A40 | Positive connection 1 (30), 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 |
Wiring Diagram VW POLO 2003 - Heated rear window button - X-contact relief relay - Onboard supply control unit - Cigarette lighter
E230 | Heated rear window button |
J59 | X-contact relief relay |
J519 | Onboard supply control unit |
L76 | Button illumination bulb |
T5a | 5-pin connector |
T6b | 6-pin connector |
T6c | 6-pin connector |
T18a | 18-pin connector |
U1 | Cigarette lighter |
80 | Earth connection 1, in dash panel wiring harness |
81 | Earth connection 1, in dash panel wiring harness |
110 | Earth connection 2, in dash panel wiring harness |
439 | Earth connection 3, in dash panel wiring harness |
605 | Earth point, on top end of steering column |
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A4 | Positive connection (58b), in dash panel wiring harness |
A33 | Connection (75), in dash panel wiring harness |
A34 | Connection (75x), in dash panel wiring harness |
Wiring Diagram VW POLO 2003 - Intermittent wiper switch - Rear wiper switch - Intermittent wiper regulator - Onboard supply control unit - Windscreen wiper motor
E22 | Intermittent wiper switch |
E34 | Rear wiper switch |
E38 | Intermittent wiper regulator |
J31 | Automatic intermittent wash and wipe relay |
J519 | Onboard supply control unit |
T4i | 4-pin connector |
T5a | 5-pin connector |
T6v | 6-pin connector |
T12a | 12-pin connector |
T16a | 16-pin connector |
T18a | 18-pin connector |
T41 | 41-pin connector |
V | Windscreen wiper motor |
199 | Earth connection 3, in dash panel wiring harness |
335 | Earth connection 5, in dash panel wiring harness |
A156 | Connection (53c), in dash panel wiring harness |
Wiring Diagram VW POLO 2003 - Bonnet contact switch - Right backrest contact switch - Onboard supply control unit - Rear window wiper motor - Windscreen and rear window washer pump - Heated rear window
F266 | Bonnet contact switch |
F316 | Right backrest contact switch |
J48 | Heated rear window control relay |
J519 | Onboard supply control unit |
T2a | 2-pin connector |
T2v | 2-pin connector |
T4al | 4-pin connector |
T5b | 5-pin connector |
T5c | 5-pin connector |
T5f | 5-pin connector |
T5g | 5-pin connector |
T6v | 6-pin connector |
T12a | 12-pin connector |
T16a | 16-pin connector |
T18a | 18-pin connector |
V12 | Rear window wiper motor |
V59 | Windscreen and rear window washer pump |
Z1 | Heated rear window |
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53 | Earth point, on right in rear lid |
98 | Earth connection, in rear lid wiring harness |
287 | Earth connection, in rear lid feeder wiring harness |
612 | Earth point, centre on rear lid |
A102 | Connection (windscreen wiper), in dash panel wiring harness |
Wiring Diagram VW POLO 2003 - Fresh air blower switch - Onboard supply control unit - Fresh air blower series resistor with overheating fuse - Fresh air blower - Fresh air and air recirculation flap control motor
E9 | Fresh air blower switch |
E159 | Fresh air and air recirculation flap switch |
F268 | Auxiliary heating heater element contact switch |
J248 | Diesel direct injection system control unit |
J519 | Onboard supply control unit |
K114 | Fresh air and air recirculation warning lamp |
L16 | Fresh air regulator illumination bulb |
N24 | Fresh air blower series resistor with overheating fuse |
T2u | 2-pin connector |
T4e | 4-pin connector |
T5h | 5-pin connector |
T6s | 6-pin connector |
T10c | 10-pin connector |
T11c | 11-pin connector |
T16c | 16-pin connector |
V2 | Fresh air blower |
V154 | Fresh air and air recirculation flap control motor |
189 | Earth connection 1, in heater wiring harness |
B135 | Connection 1 (15a), in interior wiring harness |
L66 | Connection, in heater blower wiring harness |
* | According to equipment |
Wiring Diagram VW POLO 2003 - Light switch - Onboard supply control unit
E1 | Light switch |
E4 | Headlight dipper and flasher switch |
E20 | Switch and instrument illumination regulator |
J519 | Onboard supply control unit |
M41 | Left tail light and rear fog light bulb |
SB3 | Fuse 3 on fuse holder B |
T6b | 6-pin connector |
T6l | 6-pin connector |
T17 | 17-pin connector |
T41 | 41-pin connector |
B169 | Positive connection 1 (30), in interior wiring harness |
Wiring Diagram VW POLO 2003 - Onboard supply control unit - Fuse holder B
J519 | Onboard supply control unit |
M1 | Left side light bulb |
M3 | Right side light bulb |
M29 | Left headlight dipped beam bulb |
M31 | Right headlight dipped beam bulb |
SB | Fuse holder B |
SB12 | Fuse 12 on fuse holder B |
SB13 | Fuse 13 on fuse holder B |
SB16 | Fuse 16 on fuse holder B |
SB18 | Fuse 18 on fuse holder B |
SB20 | Fuse 20 on fuse holder B |
SB43 | Fuse 43 on fuse holder B |
SB54 | Fuse 54 on fuse holder B |
T10a | 10-pin connector |
T10b | 10-pin connector |
T11a | 11-pin connector |
T12a | 12-pin connector |
A9 | Positive connection (56b), in instruments wiring harness |
E107 | Connection (left parking light), in dash panel wiring harness |
E108 | Connection (right parking light), in dash panel wiring harness |
Wiring Diagram VW POLO 2003 - Onboard supply control unit - Fuse holder B - 12 V socket
J519 | Onboard supply control unit |
SB | Fuse holder B |
SB1 | Fuse 1 on fuse holder B |
SB34 | Fuse 34 on fuse holder B |
SB36 | Fuse 36 on fuse holder B |
SB46 | Fuse 46 on fuse holder B |
SB47 | Fuse 47 on fuse holder B |
SB48 | Fuse 48 on fuse holder B |
SB49 | Fuse 49 on fuse holder B |
SB52 | Fuse 52 on fuse holder B |
T3w | 3-pin connector |
T16a | 16-pin connector |
U5 | 12 V socket, in luggage compartment |
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86 | Earth connection 1, in rear wiring harness |
Wiring Diagram VW POLO 2003 - Horn plate - Horn or dual tone horn - Onboard supply control unit - Data bus diagnostic interface - Fuse holder B - Diagnostic connection
F138 | Airbag coil connector and return ring with slip ring |
H | Horn plate |
H1 | Horn or dual tone horn |
J317 | Terminal 30 voltage supply relay |
J413 | Horn relay |
J519 | Onboard supply control unit |
J533 | Data bus diagnostic interface |
SB | Fuse holder B |
SB27 | Fuse 27 on fuse holder B |
SB28 | Fuse 28 on fuse holder B |
SB29 | Fuse 29 on fuse holder B |
SB30 | Fuse 30 on fuse holder B |
T2l | 2-pin connector |
T5c | 5-pin connector |
T6j | 6-pin connector |
T6q | 6-pin connector |
T16a | 16-pin connector |
T16b | 16-pin connector |
T18a | 18-pin connector |
T41 | 41-pin connector |
U31 | Diagnostic connection |
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124 | Earth connection, in right side engine compartment wiring harness |
135 | Earth connection 2, in dash panel wiring harness |
A76 | Connection (K-diagnosis wire), in dash panel wiring harness |
A164 | Positive connection 2 (30a) in dash panel wiring harness |
B150 | Positive connection 2 (30a), in interior wiring harness |
Wiring Diagram VW POLO 2003 - Immobiliser reader coil - Coolant shortage indicator sender - Windscreen washer fluid level sender - Control unit in dash panel insert - Immobiliser control unit - Onboard supply control unit - Dash panel insert
D2 | Immobiliser reader coil |
G32 | Coolant shortage indicator sender |
G33 | Windscreen washer fluid level sender |
J285 | Control unit in dash panel insert |
J362 | Immobiliser control unit |
J519 | Onboard supply control unit |
K | Dash panel insert |
K2 | Alternator warning lamp |
K19 | Seat belt warning system warning lamp |
K92 | Servotronic warning lamp |
K166 | Door open warning lamp |
T6q | 6-pin connector |
T6r | 6-pin connector |
T8c | 8-pin connector |
T11b | 11-pin connector |
T16a | 16-pin connector |
T32a | 32-pin connector |
269 | Earth connection (sender earth) 1, in dash panel wiring harness |
327 | Earth connection (sender earth), in engine compartment wiring harness |
A121 | Connection (high bus), in dash panel wiring harness |
A122 | Connection (low bus), in dash panel wiring harness |
Wiring Diagram VW POLO 2003 - Driver side belt switch - Handbrake warning switch - Brake fluid level warning contact - Control unit in dash panel insert - Onboard supply control unit - Dash panel insert
E24 | Driver side belt switch |
F9 | Handbrake warning switch |
F34 | Brake fluid level warning contact |
J104 | ABS control unit |
J285 | Control unit in dash panel insert |
J519 | Onboard supply control unit |
K | Dash panel insert |
K28 | Coolant temperature and coolant shortage warning lamp |
K106 | Washer fluid low warning lamp |
K118 | Brake system warning lamp |
K193 | Rear seat backrest lock warning lamp |
T6z | 6-pin connector |
T8c | 8-pin connector |
T8x | 8-pin connector |
T11b | 11-pin connector |
T18b | 18-pin connector |
T32a | 32-pin connector |
Y2 | Digital clock |
131 | Earth connection 2, in engine compartment wiring harness |
238 | Earth connection 1, in interior wiring harness |
A115 | Connection (handbrake warning), 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 |
VW POLO 2003 Overview of control units
Overview of control units | | | 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 |
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 2003 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 2003 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 2003 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 2003 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 2003 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 2003 Fuel pump control unit -J538-
Fuel pump control unit -J538- | Under rear bench seat ⇒ -arrow- |
VW POLO 2003 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 2003 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 2003 Heated driver seat control unit -J131-
Heated driver seat control unit -J131- | On driver seat frame ⇒ -arrow- |
VW POLO 2003 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 2003 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- | | | |
VW POLO 2003 Onboard supply control unit -J519-
Onboard supply control unit -J519- | Under dash panel ⇒ Position 1 |
Connectors on onboard supply control unit -J519-
VW POLO 2003 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 |
| | VW POLO 2003 Mobile telephone operating electronics control unit -J412-
Mobile telephone operating electronics control unit -J412- | | | Polo | Fitting Locations | No. 804 / 24 |
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A - | Mobile telephone operating electronics control unit |
VW POLO 2003 | |
VW POLO 2003 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 2003 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 | | | |
VW POLO 2003 Coupling station driver seat
Coupling station driver seat | | |
VW POLO 2003 coupling station front passenger seatcoupling station front passenger seat | | | |
VW POLO 2003 Coupling station bulkhead (14-pin)
Coupling station bulkhead (14-pin) | Polo | Fitting Locations | No. 806 / 6 |
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VW POLO 2003 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 2003 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 | | | |