Wiring Diagram VW JETTA 2007 - 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 |
| SA6 | Fuse 6 in fuse holder A |
| T2 | 2-pin connector |
| T3ba | 3-pin connector |
| T4t | 4-pin connector, near starter |
| 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 JETTA 2007 - Ignition/starter switch - 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 |
| 43 | Earth point, lower part of right A-pillar |
| 374 | Earth connection 9, in main wiring harness |
| 382 | Earth connection 17, in main wiring harness |
Wiring Diagram VW JETTA 2007 - Terminal 30 voltage supply relay - Steering column electronics control unit
| J317 | Terminal 30 voltage supply relay |
| J527 | Steering column electronics control unit |
| SB2 | Fuse 2 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 |
Wiring Diagram VW JETTA 2007 - Fuse holder B
| SB | Fuse holder B |
| SB6 | Fuse 6 on fuse holder B |
| SB10 | Fuse 10 on fuse holder B |
| SB13 | Fuse 13 on fuse holder B |
| SB15 | Fuse 15 on fuse holder B |
| SB24 | Fuse 24 on fuse holder B |
| SB27 | Fuse 27 on fuse holder B |
| T40 | 40-pin connector |
| A99 | Connection 1 (87) in dash panel wiring harness |
| D183 | Connection 4 (87a), in engine compartment wiring harness |
| * | Push-in bridge on relay slot |
Wiring Diagram VW JETTA 2007 - Automatic glow period control unit - Glow plug 1 - Glow plug 2 - Glow plug 3 - Glow plug 4
| J179 | Automatic glow period control unit |
| Q10 | Glow plug 1 |
| Q11 | Glow plug 2 |
| Q12 | Glow plug 3 |
| Q13 | Glow plug 4 |
| T14a | 14-pin connector |
Wiring Diagram VW JETTA 2007 - Fuel gauge sender - Fuel system pressurisation pump - Fuel pump relay - Terminal 50 voltage supply relay
| G | Fuel gauge sender |
| G6 | Fuel system pressurisation pump |
| J17 | Fuel pump relay |
| J519 | Onboard supply control unit |
| J682 | Terminal 50 voltage supply relay |
| SC13 | Fuse 13 on fuse holder C |
| SC27 | Fuse 27 on fuse holder C |
| T5b | 5-pin connector |
| T6d | 6-pin connector |
| T10q | 10-pin connector |
| 44 | Earth point, lower part of left A-pillar |
| 366 | Earth connection 1, in main wiring harness |
| A41 | Positive connection (50), in dash panel wiring harness |
| A167 | Positive connection 3 (30a) in dash panel wiring harness |
Wiring Diagram VW JETTA 2007 - Diesel direct injection system control unit
| J248 | Diesel direct injection system control unit |
| T94 | 94-pin connector |
| 78 | Earth point, lower part of right B-pillar |
| 131 | Earth connection 2, in engine compartment wiring harness |
| 383 | Earth connection 18, in main wiring harness |
| 607 | Earth point, on left in plenum chamber |
| 675 | Earth point 2, on right in luggage compartment |
| B508 | Connection (DF), in interior wiring harness |
| D182 | Connection 3 (87a), in engine compartment wiring harness |
| * | From December 2005 |
| *2 | Up to November 2005 |
Wiring Diagram VW JETTA 2007 - Charge pressure sender - Intake air temperature sender - Accelerator position sender - Accelerator position sender 2 - Diesel direct injection system control unit
| G31 | Charge pressure sender |
| G42 | Intake air temperature sender |
| G79 | Accelerator position sender |
| G185 | Accelerator position sender 2 |
| J248 | Diesel direct injection system control unit |
| T6h | 6-pin connector |
| T94 | 94-pin connector |
Wiring Diagram VW JETTA 2007 - Lambda probe - Intake manifold flap potentiometer - Diesel direct injection system control unit - Intake manifold flap motor
| G39 | Lambda probe |
| G336 | Intake manifold flap potentiometer |
| J248 | Diesel direct injection system control unit |
| T5p | 5-pin connector |
| T6w | 6-pin connector |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
| V157 | Intake manifold flap motor |
Wiring Diagram VW JETTA 2007 - Engine speed sender - Hall sender - Coolant temperature sender - Diesel direct injection system control unit
| G28 | Engine speed sender |
| G40 | Hall sender |
| G62 | Coolant temperature sender |
| J248 | Diesel direct injection system control unit |
| T3q | 3-pin connector |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
Wiring Diagram VW JETTA 2007 - Radiator outlet coolant temperature sender - Diesel direct injection system control unit - Unit injector valve - No. 1 cyl. - Unit injector valve - No. 2 cyl. - Unit injector valve - No. 3 cyl. - Unit injector valve - No. 4 cyl.
| G83 | Radiator outlet coolant temperature sender |
| J248 | Diesel direct injection system control unit |
| N240 | Unit injector valve, No. 1 cyl. |
| N241 | Unit injector valve, No. 2 cyl. |
| N242 | Unit injector valve, No. 3 cyl. |
| N243 | Unit injector valve, No. 4 cyl. |
| T8r | 8-pin connector |
| T60 | 60-pin connector |
| D140 | Connection (injectors), in engine prewiring harness |
| E48 | Connection (injectors), in injection system wiring harness |
Wiring Diagram VW JETTA 2007 - Fuel temperature sender - Turbocharger guide vane position sender - Diesel direct injection system control unit
| G81 | Fuel temperature sender |
| G500 | Turbocharger guide vane position sender |
| J248 | Diesel direct injection system control unit |
| T4x | 4-pin connector |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
| D104 | Positive connection 2 (30a), in engine compartment wiring harness |
| D105 | Positive connection 3 (58d), in engine compartment wiring harness |
| * | Radiator fan connection |
Wiring Diagram VW JETTA 2007 - Air mass meter - Exhaust gas recirculation potentiometer - Diesel direct injection system control unit - Exhaust gas recirculation valve - Exhaust gas recirculation two-way valve - Exhaust gas recirculation cooler changeover valve
| G70 | Air mass meter |
| G212 | Exhaust gas recirculation potentiometer |
| J248 | Diesel direct injection system control unit |
| N18 | Exhaust gas recirculation valve |
| N75 | Charge pressure control solenoid valve |
| N161 | Exhaust gas recirculation two-way valve |
| N345 | Exhaust gas recirculation cooler changeover valve |
| T5d | 5-pin connector |
| T14a | 14-pin connector |
| T60 | 60-pin connector |
| T94 | 94-pin connector |
| D102 | Connection 2 in engine compartment wiring harness |
| D104 | Positive connection 2 (30a), in engine compartment wiring harness |
| D105 | Positive connection 3 (58d), in engine compartment wiring harness |
Wiring Diagram VW JETTA 2007 - Brake light switch - Brake pedal switch - Clutch position sender - Diesel direct injection system control unit - Onboard supply control unit
| F | Brake light switch |
| F47 | Brake pedal switch |
| G476 | Clutch position sender |
| J248 | Diesel direct injection system control unit |
| J519 | Onboard supply control unit |
| T4y | 4-pin connector |
| T5m | 5-pin connector |
| T94 | 94-pin connector |
| A193 | Connection (87a), in dash panel wiring harness |
| B131 | Connection (54), in interior wiring harness |
| * | From December 2005 |
| *2 | Up to November 2005 |
Wiring Diagram VW JETTA 2007 - Diesel direct injection system control unit
| J104 | ABS control unit |
| J248 | Diesel direct injection system control unit |
| T26a | 26-pin connector |
| T26e | 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 JETTA 2007 - Diesel direct injection system control unit - Terminal 15 voltage supply relay - Onboard supply control unit
| J248 | Diesel direct injection system control unit |
| J329 | Terminal 15 voltage supply relay |
| J519 | Onboard supply control unit |
| SC1 | Fuse 1 on fuse holder C |
| SC2 | Fuse 2 on fuse holder C |
| SC6 | Fuse 6 on fuse holder C |
| SC29 | Fuse 29 on fuse holder C |
| T16 | 16-pin connector, on diagnostic connection |
| T94 | 94-pin connector |
| A2 | Positive connection (15), in dash panel wiring harness |
| A76 | Connection (K-diagnosis wire), 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 |
| B277 | Positive connection 1 (15a) in main wiring harness |
| 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 JETTA 2007 - Control unit in dash panel insert - Data bus diagnostic interface
| J285 | Control unit in dash panel insert |
| J533 | Data bus diagnostic interface |
| T20 | 20-pin connector |
| T36 | 36-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 JETTA 2007 - Fuel gauge - Coolant temperature gauge - Rev. counter - Speedometer - Coolant shortage indicator sender - Control unit in dash panel insert - Alternator warning lamp - Coolant temperature and coolant shortage warning lamp - Electronic power control fault lamp
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G5 | Rev. counter |
| G21 | Speedometer |
| G32 | Coolant shortage indicator sender |
| J285 | Control unit in dash panel insert |
| 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 |
| T36 | 36-pin connector |
| 410 | Earth connection 1 (sender earth) in main wiring harness |
Wiring Diagram VW JETTA 2007 - Oil pressure switch - 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 |
| T36 | 36-pin connector |
| 367 | Earth connection 2, in main wiring harness |
| 602 | Earth point, in front left footwell |
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