Wiring Diagram VW POLO 1997 - Battery - alternator - starter - intake manifold preheating
| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| D | Ignition/starter switch |
| J81 | Intake manifold preheating relay |
| J362 | Immobilizer control unit, next to steering column |
| N51 | Intake manifold preheating heater element |
| T1c | Single connector, near intake manifold |
| T2e | 2-pin connector, on gearbox |
| T6 | 6-pin connector, on immobilizer control unit |
| 1 | Earth strap, battery body |
| 2 | Earth strap, gearbox - body |
Wiring Diagram VW POLO 1997 - Mono-Motronic control unit - ignition system - Hall sender - throttle valve positioner
| F60 | Idling switch |
| G40 | Hall sender |
| G127 | Throttle valve positioner sender |
| J257 | Mono-Motronic control unit, centre in plenum chamber |
| N152 | Ignition transformer |
| N157 | Ignition transformer output stage |
| O | Ignition distributor |
| P | Spark plug connector |
| Q | Flame plug |
| T3 | 3-pin connector, on ignition transformer output stage |
| T28a | 28-pin connector, on engine |
| T45 | 45-pin connector, on Mono-Motronic control unit |
| V60 | Throttle valve positioner |
| 15 | Earth point, on cylinder head |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| E12 | Positive (+) connection -1- (15), in Mono-Motronic wiring harness |
Wiring Diagram VW POLO 1997 - Mono-Motronic control unit - throttle valve potentiometer - injector - knock sensor
| G2 | Coolant temperature sender |
| G42 | Intake air temperature sender |
| G61 | Knock sensor I (for engine codes ADX and AEA only) |
| G62 | Coolant temperature sender |
| G69 | Throttle valve potentiometer |
| J257 | Mono-Motronic control unit, centre in plenum chamber |
| J362 | Immobilizer control unit, next to steering column |
| N181 | Injector |
| T2c | 2-pin connector, on engine |
| T6 | 6-pin connector, on immobilizer control unit |
| T28a | 28-pin connector, on engine |
| T45 | 45-pin connector, on Mono-Motronic control unit |
| 15 | Earth point, on cylinder head |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| --- | For engine codes ADX and AEA only |
Wiring Diagram VW POLO 1997 - Mono-Motronic control unit - Lambda probe - fuel supply system
| G | Fuel gauge sender |
| G6 | Fuel pump |
| G39 | Lambda probe |
| J17 | Fuel pump relay |
| J257 | Mono-Motronic control unit, centre in plenum chamber |
| N80 | Activated charcoal filter system solenoid valve I (pulsed) |
| T4 | 4-pin connector, on gearbox |
| T45 | 45-pin connector, on Mono-Motronic control unit |
| TV2 | Terminal 30 junction box |
| E11 | Positive connection (30), in Mono-Motronic wiring harness |
Wiring Diagram VW POLO 1997 - Radiator fan - speedometer sender - oil pressure switch
| F18 | Radiator fan thermo-switch |
| F22 | Oil pressure switch (0.3 bar) |
| G22 | Speedometer sender (Hall sender on gearbox) |
| G32 | Coolant shortage indicator sender |
| T3a | 3-pin connector, on radiator fan |
| T16 | 16-pin connector, behind shelf driver's side, - Self-diagnosis connection for V.A.G 1551 - |
| T28a | 28-pin connector, on engine |
| V7 | Radiator fan |
| W | Interior light, front |
| W3 | Luggage compartment light |
| 12 | Earth point, left in engine compartment, under battery |
| 15 | Earth point, on cylinder head |
| 173 | Earth connection -1-, in Mono- Motronic wiring harness |
| * | For vehicles without coolant shortage indicator only |
| --- | For vehicles with coolant shortage indicator only - gradual introduction |
Wiring Diagram VW POLO 1997 - Dash panel insert - fuel gauge - coolant shortage and coolant temperature warning/gauge - optical and acoustic oil pressure warning - odometer display
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G5 | Rev. counter |
| H11 | Oil pressure warning buzzer |
| J285 | Control unit with display in dash panel insert |
| K3 | Oil pressure warning lamp |
| K28 | Coolant temperature/coolant shortage warning lamp |
| T4d | 4-pin connector, behind relay plate |
| T28 | 28-pin connector, on dash panel insert |
| T28a | 28-pin connector, on engine |
| Y4 | Odometer display |
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