Wiring Diagram VW BORA 2009 - Battery - Starter - Alternator - Onboard supply control unit
| A | Battery |
| B | Starter |
| C | Alternator |
| C1 | Voltage regulator |
| J519 | Onboard supply control unit |
| SA1 | Fuse 1 in fuse holder A |
| SA5 | Fuse 5 in fuse holder A |
| T3ba | 3-pin connector |
| T4t | 4-pin connector, near starter (only models with no air conditioning system) |
| U11 | Interior socket, 230 V, 110 V |
| 1 | Earth strap, battery - body |
| 12 | Earth point, on left in engine compartment |
| 507 | Threaded connection (30), on battery fuse holder |
| 652 | Earth point, engine and gearbox earth |
| A17 | Connection (61), in dash panel wiring harness |
| B169 | Positive connection 1 (30), in interior wiring harness |
Wiring Diagram VW BORA 2009 - Cruise control system switch - Cruise control system (CCS) SET button - Onboard supply control unit - Steering column electronics control unit
| D | Ignition/starter switch |
| E45 | Cruise control system switch |
| E227 | Cruise control system (CCS) SET button |
| J519 | Onboard supply control unit |
| J527 | Steering column electronics control unit |
| T20d | 20-pin connector |
| 507 | Threaded connection (30), on battery fuse holder |
Wiring Diagram VW BORA 2009 - Onboard supply control unit - Steering column electronics control unit - Fuse 13 on fuse holder B - Fuse 15 on fuse holder B - Fuse 21 on fuse holder B - Fuse 22 on fuse holder B - Fuse 23 on fuse holder B
| J317 | Terminal 30 voltage supply relay |
| J519 | Onboard supply control unit |
| J527 | Steering column electronics control unit |
| SB13 | Fuse 13 on fuse holder B |
| SB15 | Fuse 15 on fuse holder B |
| SB21 | Fuse 21 on fuse holder B |
| SB22 | Fuse 22 on fuse holder B |
| SB23 | Fuse 23 on fuse holder B |
| T20d | 20-pin connector |
| T40 | 40-pin connector |
| 507 | Threaded connection (30), on battery fuse holder |
| D78 | Positive connection 1 (30a), in engine compartment wiring harness |
| D183 | Connection 4 (87a) in engine compartment wiring harness |
| E30 | Connection (87a), in engine wiring harness |
Wiring Diagram VW BORA 2009 - Onboard supply control unit - Fuse 6 on fuse holder B - Fuse 7 on fuse holder B - Fuse 10 on fuse holder B - Fuse 14 on fuse holder B - Fuse 24 on fuse holder B - Fuse 27 on fuse holder B
| J519 | Onboard supply control unit |
| SB6 | Fuse 6 on fuse holder B |
| SB7 | Fuse 7 on fuse holder B |
| SB10 | Fuse 10 on fuse holder B |
| SB14 | Fuse 14 on fuse holder B |
| SB24 | Fuse 24 on fuse holder B |
| SB27 | Fuse 27 on fuse holder B |
| T14a | 14-pin connector |
| T40 | 40-pin connector |
| A23 | Connection (30al), in dash panel wiring harness |
| * | Push-in bridge on relay slot |
Wiring Diagram VW BORA 2009 - Fuel pump relay - 1AV injection system control unit - Onboard supply control unit - Terminal 50 voltage supply relay
| J17 | Fuel pump relay |
| J382 | 1AV injection system control unit |
| J519 | Onboard supply control unit |
| J682 | Terminal 50 voltage supply relay |
| SC12 | Fuse 12 on fuse holder C |
| SC27 | Fuse 27 on fuse holder C |
| T9b | 9-pin connector |
| T10ag | 10-pin connector |
| V393 | Supplementary fuel pump |
| 656 | Earth point, on right headlight |
| A41 | Positive connection (50), in dash panel wiring harness |
| B156 | Positive connection (30a), in interior wiring harness |
| * | Relay carrier on left under dash panel |
Wiring Diagram VW BORA 2009 - Onboard supply control unit - Engine control unit
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| T94 | 94-pin connector |
| 131 | Earth connection 2, in engine compartment wiring harness |
| 607 | Earth point, on left in plenum chamber |
| D182 | Connection 3 (87a) in engine compartment wiring harness |
Wiring Diagram VW BORA 2009 - Charge pressure sender - Intake air temperature sender - Accelerator position sender - Accelerator position sender 2 - Onboard supply control unit - Engine control unit - Heater element for crankcase breather
| G31 | Charge pressure sender |
| G42 | Intake air temperature sender |
| G79 | Accelerator position sender |
| G185 | Accelerator position sender 2 |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| N79 | Heater element for crankcase breather |
| T4bw | 4-pin connector |
| T6h | 6-pin connector |
| T94 | 94-pin connector |
Wiring Diagram VW BORA 2009 - Exhaust gas pressure sensor 1 - Onboard supply control unit - Engine control unit - Exhaust flap control unit
| G450 | Exhaust gas pressure sensor 1 |
| G505 | Pressure differential sender |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| J883 | Exhaust flap control unit |
| T5p | 5-pin connector |
| T14a | 14-pin connector |
| T94 | 94-pin connector |
| D110 | Connection 8 in engine compartment wiring harness |
| D111 | Connection 9 in engine compartment wiring harness |
Wiring Diagram VW BORA 2009 - Lambda probe - Onboard supply control unit - Engine control unit - Fuel pressure regulating valve - Fuel metering valve
| G39 | Lambda probe |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| N276 | Fuel pressure regulating valve |
| N290 | Fuel metering valve |
| T6w | 6-pin connector, near catalytic converter |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
| 250 | Earth connection, in diesel engine prewiring harness |
| D189 | Connection (87a) in engine prewiring harness |
Wiring Diagram VW BORA 2009 - Automatic glow period control unit - Onboard supply control unit - Engine control unit - Glow plug 1 - Glow plug 2 - Glow plug 3 - Glow plug 4
| G620 | Internal cylinder pressure sender for cylinder 1 |
| G621 | Internal cylinder pressure sender for cylinder 2 |
| G622 | Internal cylinder pressure sender for cylinder 3 |
| G623 | Internal cylinder pressure sender for cylinder 4 |
| J179 | Automatic glow period control unit |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| Q10 | Glow plug 1 |
| Q11 | Glow plug 2 |
| Q12 | Glow plug 3 |
| Q13 | Glow plug 4 |
| T14a | 14-pin connector |
| T60 | 60-pin connector |
| 250 | Earth connection, in diesel engine prewiring harness |
| D37 | Connection (glow plugs) in engine prewiring harness |
| * | According to equipment |
Wiring Diagram VW BORA 2009 - Automatic glow period control unit - Throttle valve module - Onboard supply control unit - Engine control unit
| F34 | Brake fluid level warning contact |
| H2 | Treble horn |
| J179 | Automatic glow period control unit |
| J338 | Throttle valve module |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| T2v | 2-pin connector |
| T14a | 14-pin connector |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
| 376 | Earth connection 11, in main wiring harness |
| 381 | Earth connection 16, in main wiring harness |
| 642 | Earth point for electronically controlled fan |
| 655 | Earth point, on left headlight |
Wiring Diagram VW BORA 2009 - Hall sender - Coolant temperature sender - Exhaust gas recirculation temperature sensor - Intake manifold flap potentiometer - Onboard supply control unit - Engine control unit - Intake manifold flap motor
| G40 | Hall sender |
| G62 | Coolant temperature sender |
| G98 | Exhaust gas recirculation temperature sensor |
| G336 | Intake manifold flap potentiometer |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| T3q | 3-pin connector |
| T60 | 60-pin connector |
| V157 | Intake manifold flap motor |
| 282 | Earth connection, in headlight washer system wiring harness |
| D35 | Positive connection 1 (15a) in engine prewiring harness |
| D141 | Connection (5V) in engine prewiring harness |
Wiring Diagram VW BORA 2009 - Radiator outlet coolant temperature sender - Exhaust gas temperature sender 4 - Onboard supply control unit - Engine control unit - Injector - cylinder 1 - Injector - cylinder 2 - Injector - cylinder 3 - Injector - cylinder 4
| G83 | Radiator outlet coolant temperature sender |
| G648 | Exhaust gas temperature sender 4 |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| N30 | Injector, cylinder 1 |
| N31 | Injector, cylinder 2 |
| N32 | Injector, cylinder 3 |
| N33 | Injector, cylinder 4 |
| T2bc | 2-pin connector |
| T10ag | 10-pin connector |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
| D112 | Connection 10 in engine compartment wiring harness |
Wiring Diagram VW BORA 2009 - Exhaust gas temperature sender 1 - Exhaust gas temperature sender 2 - Exhaust gas temperature sender 3 - Position sender for charge pressure positioner - Onboard supply control unit - Engine control unit
| G235 | Exhaust gas temperature sender 1 |
| G448 | Exhaust gas temperature sender 2 |
| G495 | Exhaust gas temperature sender 3 |
| G581 | Position sender for charge pressure positioner |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| T2ba | 2-pin connector |
| T2bb | 2-pin connector |
| T2bz | 2-pin connector |
| T4x | 4-pin connector |
| T14a | 14-pin connector |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
| 250 | Earth connection, in diesel engine prewiring harness |
| A99 | Connection 1 (87) in dash panel wiring harness |
| D105 | Positive connection 3 (58d), in engine compartment wiring harness |
| D112 | Connection 10 in engine compartment wiring harness |
| * | Radiator fan connection |
Wiring Diagram VW BORA 2009 - Engine speed sender - Fuel temperature sender - Fuel pressure sender - Onboard supply control unit - Engine control unit
| G28 | Engine speed sender |
| G81 | Fuel temperature sender |
| G247 | Fuel pressure sender |
| G466 | Exhaust gas recirculation potentiometer 2 |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| N213 | Exhaust gas recirculation valve 2 |
| T6at | 6-pin connector |
| T60 | 60-pin connector |
| 250 | Earth connection, in diesel engine prewiring harness |
| D105 | Positive connection 3 (58d), in engine compartment wiring harness |
Wiring Diagram VW BORA 2009 - Air mass meter - Onboard supply control unit - Engine control unit - Charge pressure control solenoid valve
| G70 | Air mass meter |
| G212 | Exhaust gas recirculation potentiometer |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| N18 | Exhaust gas recirculation valve |
| N75 | Charge pressure control solenoid valve |
| T5d | 5-pin connector |
| T14a | 14-pin connector |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
| 250 | Earth connection, in diesel engine prewiring harness |
| B131 | Connection (54), in interior wiring harness |
| D105 | Positive connection 3 (58d), in engine compartment wiring harness |
Wiring Diagram VW BORA 2009 - Brake light switch - Brake pedal switch - Clutch position sender - Onboard supply control unit - Engine control unit
| F | Brake light switch |
| F47 | Brake pedal switch |
| G476 | Clutch position sender |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| T4y | 4-pin connector |
| T5m | 5-pin connector |
| T94 | 94-pin connector |
| 402 | Earth connection (interior light), in interior wiring harness |
| B131 | Connection (54), in interior wiring harness |
Wiring Diagram VW BORA 2009 - Lambda probe after catalytic converter - Onboard supply control unit - Engine control unit
| G130 | Lambda probe after catalytic converter |
| J104 | ABS control unit |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| T6af | 6-pin connector |
| T26a | 26-pin connector |
| T47 | 47-pin connector |
| T94 | 94-pin connector |
| B383 | Connection 1 (powertrain CAN bus, high), in main wiring harness |
| B390 | Connection 1 (powertrain CAN bus, low), in main wiring harness |
Wiring Diagram VW BORA 2009 - Onboard supply control unit - Engine control unit - Terminal 15 voltage supply relay 2
| J234 | Airbag control unit |
| J519 | Onboard supply control unit |
| J623 | Engine control unit |
| J681 | Terminal 15 voltage supply relay 2 |
| SC1 | Fuse 1 on fuse holder C |
| SC2 | Fuse 2 on fuse holder C |
| T9i | 9-pin connector |
| T16 | 16-pin connector |
| T75 | 75-pin connector |
| T94 | 94-pin connector |
| A2 | Positive connection (15), in dash panel wiring harness |
| A192 | Positive connection 3 (15a) in dash panel wiring harness |
| A199 | Positive connection 4 (15a) in dash panel wiring harness |
| B383 | Connection 1 (powertrain CAN bus, high), in main wiring harness |
| B390 | Connection 1 (powertrain CAN bus, low), in main wiring harness |
| * | Relay carrier on left under dash panel |
Wiring Diagram VW BORA 2009 - Control unit in dash panel insert - Onboard supply control unit - Data bus diagnostic interface
| J285 | Control unit in dash panel insert |
| J519 | Onboard supply control unit |
| J533 | Data bus diagnostic interface |
| T20 | 20-pin connector |
| T32c | 32-pin connector |
| B383 | Connection 1 (powertrain CAN bus, high), in main wiring harness |
| B390 | Connection 1 (powertrain CAN bus, low), in main wiring harness |
| B397 | Connection 1 (convenience CAN bus, high), in main wiring harness |
| B406 | Connection 1 (convenience CAN bus, low), in main wiring harness |
Wiring Diagram VW BORA 2009 - Fuel gauge sender - Fuel gauge - Coolant temperature gauge - Rev. counter - Fuel system pressurisation pump - Speedometer - Coolant shortage indicator sender - Control unit in dash panel insert - Onboard supply control unit - Alternator warning lamp - Coolant temperature and coolant shortage warning lamp - Cruise control system warning lamp - Reserve fuel warning lamp - Electronic power control fault lamp
| G | Fuel gauge sender |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G5 | Rev. counter |
| G6 | Fuel system pressurisation pump |
| G21 | Speedometer |
| G32 | Coolant shortage indicator sender |
| J285 | Control unit in dash panel insert |
| J519 | Onboard supply control unit |
| K2 | Alternator warning lamp |
| K28 | Coolant temperature and coolant shortage warning lamp |
| K31 | Cruise control system warning lamp |
| K105 | Reserve fuel warning lamp |
| K132 | Electronic power control fault lamp |
| T5b | 5-pin connector |
| T32c | 32-pin connector |
| 383 | Earth connection 18, in main wiring harness |
| 410 | Earth connection 1 (sender earth) in main wiring harness |
| 663 | Earth point, rear right side panel |
Wiring Diagram VW BORA 2009 - Control unit in dash panel insert - Onboard supply control unit
| F1 | Oil pressure switch |
| H3 | Buzzer and gong |
| J285 | Control unit in dash panel insert |
| J519 | Onboard supply control unit |
| K3 | Oil pressure warning lamp |
| T14a | 14-pin connector |
| T32c | 32-pin connector |
| 367 | Earth connection 2, in main wiring harness |
| 602 | Earth point, in front left footwell |
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