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Wiring Diagram VW POLO 2002 - Alternator - starter
| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| T2b | 2-pin connector, behind relay plate |
| 30 | Earth point -1-, next to relay plate |
| D50 | Positive (+) connection (30), in engine compartment wiring harness |
Wiring Diagram VW POLO 2002 - Motronic control unit - ignition system - lambda probe
| G39 | Lambda probe |
| G40 | Hall sender |
| J220 | Motronic control unit, in plenum chamber, left |
| J362 | Immobilizer control unit |
| N152 | Ignition transformer |
| N157 | Ignition transformer output stage |
| O | Ignition distributor |
| P | Spark plug connector |
| Q | Spark plugs |
| T3 | 3-pin connector, ignition transformer output stage |
| T4 | 4-pin connector |
| T8 | 8-pin connector |
| T14n | 28-pin connector, on engine left |
| T45 | 45-pin connector, on Motronic control unit |
| 12 | Earth point, in engine compartment, left |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| 139 | Earth connection (sender earth), in Motronic wiring harness |
| D51 | Positive (+) connection -1- (15), in engine compartment wiring harness |
Wiring Diagram VW POLO 2002 - Motronic control unit - coolant temperature sender - intake air temperature sender - intake manifold pressure sender - knock sensor
| G2 | Coolant temperature sender |
| G42 | Intake air temperature sender |
| G61 | Knock sensor |
| G62 | Coolant temperature sender |
| G71 | Intake manifold pressure sender |
| J220 | Motronic control unit, in plenum chamber, left |
| T2 | 2-pin connector |
| T14n | 14-pin connector, on engine left |
| T45 | 45-pin connector, on Motronic control unit |
| 15 | Earth point, on cylinder head |
| 85 | Earth connection -1-, in engine compartment wiring harness |
Wiring Diagram VW POLO 2002 - Motronic control unit - injectors - throttle valve positioner - idling switch - throttle valve potentiometer
| F60 | Idling switch |
| G69 | Throttle valve potentiometer |
| G88 | Throttle valve positioner potentiometer |
| J220 | Motronic control unit, in plenum chamber, left |
| N30 | Injector, cylinder 1 |
| N31 | Injector, cylinder 2 |
| N32 | Injector, cylinder 3 |
| N33 | Injector, cylinder 4 |
| T4n | 4-pin connector, on engine left |
| T10n | 10-pin connector, on engine left |
| T45 | 45-pin connector, on Motronic control unit |
| V60 | Throttle valve positioner |
| 15 | Earth point, on cylinder head |
| 139 | Earth connection (sender earth), in Motronic wiring harness |
| E9 | Positive (+) connection -2- (15), in Motronic wiring harness |
| G3 | Positive (+) connection in cable sleeve - injectors |
Wiring Diagram VW POLO 2002 - Motronic control unit - activated charcoal filter system solenoid valve - fuel supply system - speedometer sender
| G | Fuel gauge sender |
| G6 | Fuel pump |
| G22 | Speedometer sender (hall sender, on gearbox) |
| J17 | Fuel pump relay |
| J220 | Motronic control unit, in plenum chamber, left |
| N80 | Activated charcoal filter system solenoid valve 1 (pulsed) |
| T4n | 4-pin connector, on engine left |
| T14n | 14-pin connector, on engine left |
| T45 | 45-pin connector, on Motronic control unit |
| 15 | Earth point, on cylinder head |
Wiring Diagram VW POLO 2002 - Dash panel insert - fuel gauge - coolant shortage and coolant temperature indicator - radiator fan
| F18 | Radiator fan thermo-switch |
| F22 | Oil pressure switch * |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| J285 | Control unit with display in dash panel insert |
| K2 | Alternator warning lamp |
| K28 | Coolant temperature/coolant shortage warning lamp |
| T3b | 3-pin connector, behind dash panel, left |
| T4n | 4-pin connector, on engine left |
| T14n | 14-pin connector, on engine left |
| T28 | 28-pin connector, on dash panel insert |
| V7 | Radiator fan |
| 15 | Earth point, on cylinder head |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| * | For switch values, Engine Workshop manual, Caddy 1996►, Polo Classic 1996►, Polo Variant 1997► |
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