VW POLO 2003 – Anti-locking brake system (ABS) with electronic differential lock (EDL), traction control system (TCS) and electronic stability program (ESP) . Wiring diagrams, Pin Connector, Location – Wiring diagrams for cars
VW POLO 2003 – Anti-locking brake system (ABS) with electronic differential lock (EDL), traction control system (TCS) and electronic stability program (ESP) . Wiring diagrams, Pin Connector, Location
Wiring Diagram VW POLO 2003 - Onboard supply control unit - ABS control unit with EDL - brake light switch - ABS return flow pump relay - ABS inlet valve - ABS outlet valve - ABS return flow pump A Battery D Ignition/starter switch F Brake light switch F47 Cruise control system brake pedal switch/diesel direct injection system J... Engine control units J104 ABS control unit with EDL J105 ABS return flow pump relay J519 Onboard supply control unit N99 Front right ABS inlet valve N100 Front right ABS outlet valve N101 Front left ABS inlet valve N102 Front left ABS outlet valve S178 Fuse 6 (30), in fuse holder on battery S179 Fuse 7 (30), in fuse holder on battery SB23 Fuse 23 on fuse holder T9a 9-pin connector, yellow, on bulkhead T11c 11-pin connector, blue T42 42-pin connector V39 ABS return flow pump A2 Positive connection (15), in dash panel wiring harness A89 Connection 2 (54), in dash panel wiring harness A140 Connection (TCS), in dash panel wiring harness D73 Positive connection (54), in engine compartment wiring harness D101 Connection 1, in engine compartment wiring harness
Wiring Diagram VW POLO 2003 - Onboard supply control unit - ABS control unit - ABS hydraulic pump - inlet valves - outlet valves - ABS solenoid valve relay - speed sensor G44 Rear right speed sensor G45 Front right speed sensor G46 Rear left speed sensor G47 Front left speed sensor J104 ABS control unit, in left engine compartment J106 ABS solenoid valve relay J519 Onboard supply control unit N133 Rear right ABS inlet valve N134 Rear left ABS inlet valve N135 Rear right ABS outlet valve N136 Rear left ABS outlet valve T2k 2-pin connector T2l 2-pin connector T2m 2-pin connector T2n 2-pin connector T8x 8-pin connector T9a 9-pin connector, yellow, on left of bulkhead T42 42-pin connector V64 ABS hydraulic pump J3 Connection 1, in ABS wiring harness J5 Connection 2, in ABS wiring harness J7 Connection 3, in ABS wiring harness J8 Connection 4, in ABS wiring harness
Wiring Diagram VW POLO 2003 - Onboard supply control unit - ABS control unit with EDL - TCS and ESP button - vehicle stabilization program valve - lateral acceleration sender - yaw rate sender - brake pressure sender 1 E1 Light switch E256 TCS and ESP button G200 Lateral acceleration sender G201 Brake pressure sender 1 G202 Yaw rate sender J104 ABS control unit with EDL J519 Onboard supply control unit L71 Traction control switch illumination N225 Vehicle stabilization program switch valve 1 N226 Vehicle stabilization program switch valve 2 N227 Vehicle stabilization program high pressure valve 1 N228 Vehicle stabilization program high pressure valve 2 T3f 3-pin connector T6c 6-pin connector T6e 6-pin connector T8x 8-pin connector, on left of bulkhead T9a 9-pin connector, yellow, on left of bulkhead T42 42-pin connector 238 Earth connection 1, in interior wiring harness A4 Positive connection (58b), in dash panel wiring harness
Wiring Diagram VW POLO 2003 - Onboard supply control unit - ABS control unit with EDL - steering angle sender - handbrake warning switch Wiring Diagram VW POLO 2003 - ABS control unit with EDL - control unit with display in dash panel insert - warning lamps - brake pad wear sender G34 Front left brake pad wear sender G37 Rear right brake pad wear sender J285 Display control unit in dash panel insert J519 Onboard supply control unit K32 Brake pad warning lamp K47 ABS warning lamp K155 Electronic stability program warning lamp, TCS/ESP SB27 Fuse 27 on fuse holder T6q 6-pin connector, brown, on left of bulkhead T6r 6-pin connector, brown, on left of bulkhead T8c 8-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 A132 Connection (TCS/ESP), in dash panel wiring harness W31 Connection 1 (brake pad wear indicator), in rear wiring harness W32 Connection 2 (brake pad wear indicator), in rear wiring harness * only models with rear drum brakes
VW POLO 2003 Overview of all control units 6 - Engine control units -J248-
VW POLO 2003 front left in engine compartment
VW POLO 2003 Automatic gearbox control unit -J217- A - Automatic gearbox control unit -J217-
VW POLO 2003 Power steering control unit -J500- In engine compartment, on front of left longitudinal member
3 - Connector, depends on equipment -T3s- or -T4s-
VW POLO 2003 Radiator fan control unit -J293- Front left in engine compartment ⇒ -arrow A-
VW POLO 2003 NOx sensor control unit -J583- Under vehicle, near catalytic converter ⇒ -arrow-
A - 10-pin connector, black (T10)
B - 14-pin connector, black (T14x)
VW POLO 2003 Engine control unit - J... Note:
Note: see respective current flow diagram for engine control unit.
Note:
t Note Connector T80 comprises a 52-pin and a 28-pin connector.
t * Depending on equipment
t Connector 121, see 207/12
t Connector T94 and T60, see 207/13
A - Engine control unit, 121-pin
Note:
Note Connector T121 comprises an 81-pin connector and a 40-pin connector.
A - Engine control unit, 154-pin
Note:
Note Connector T154 comprises a 94-pin and a 60-pin connector.
VW POLO 2003 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
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-
- 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 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 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- 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- Under rear bench seat ⇒ -arrow-
VW POLO 2003 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 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- On driver seat frame ⇒ -arrow-
VW POLO 2003 Heated front passenger seat control unit -J132-
VW POLO 2003 Heated front seats control unit -J774-
VW POLO 2003 Onboard supply control unit -J519-
Under dash panel ⇒ Position 1
VW POLO 2003 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
Models with no side airbag
VW POLO 2003 Mobile telephone operating electronics control unit -J412- A - Mobile telephone operating electronics control unit
VW POLO 2003 Overview of all earth points
671 - Earth point 1, on front of left longitudinal member
12 - Earth point, on left in engine compartment
652 - Earth point, engine and gearbox earth
11 - Earth point, in battery box
640 - Earth point 2, in engine compartment
29 - Earth point, on left in engine compartment, behind battery
606 - Earth point, under centre console, near selector lever
61 - Earth point, on left C-pillar
14 - Earth point, on gearbox (depends on equipment)
13 - Earth point, on right in engine compartment
15 - Earth point, on cylinder head (depends on equipment)
614 - Earth point 2, on right in engine compartment
610 - Earth point (audio), at front under centre console
637 - Earth point, airbag control unit
12 - Earth point, on left in engine compartment
14 - Earth point, on gearbox
Note:
11 - Earth point, in battery box
640 - Earth point 2, in engine compartment
29 - Earth point, on left in engine compartment behind battery
61 - Earth point, left C-pillar
Note:
614 - Earth point 2, on right in engine compartment
15 - Earth point, on cylinder head
Note:
VW POLO 2003 Earth points, in interior VW POLO 2003 VW POLO 2003 Coupling station rear lid 1 - 5-pin connector, vacant
2 - 5-pin connector -T5b-, brown
3 - 5-pin connector -T5e-, black
VW POLO 2003 coupling station heater, air conditioning system
VW POLO 2003 Coupling station driver seat
VW POLO 2003 coupling station front passenger seat
VW POLO 2003 Coupling station bulkhead (14-pin)
VW POLO 2003 Coupling station left in engine compartment VW POLO 2003 Coupling 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
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