Wiring Diagram VW JETTA 2014 - Starter - Alternator - Onboard supply control unit

A | Battery |
B | Starter |
C | Alternator |
C1 | Voltage regulator |
D | Ignition/starter switch |
J207 | Starter inhibitor relay |
J226 | Starter inhibitor and reversing light relay |
J519 | Onboard supply control unit |
S162 | Fuse 1 (30), in battery fuse holder |
S163 | Fuse 2 (30), in battery fuse holder |
S176 | Fuse 4 (30), in battery fuse holder |
S177 | Fuse 5 (30), in battery fuse holder |
T8 | 8-pin connector |
T10z | 10-pin connector |
T73b | 73-pin connector |
TV2 | Terminal 30 wiring junction |
A41 | Positive connection (50), in dash panel wiring harness |
* | Only models with automatic gearbox |
Wiring Diagram VW JETTA 2014 - Main relay - Onboard supply control unit
D | Ignition/starter switch |
J271 | Main relay |
J519 | Onboard supply control unit |
S229 | Fuse 29 in fuse holder |
S237 | Fuse 37 in fuse holder |
T2 | 2-pin connector |
T8 | 8-pin connector |
T73a | 73-pin connector |
A2 | Positive connection (15), in dash panel wiring harness |
A32 | Positive connection (30), in dash panel wiring harness |
A52 | Positive connection 2 (30), in dash panel wiring harness |
D78 | Positive connection 1 (30a), in engine compartment wiring harness |
* | Only models with automatic gearbox |
*2 | Only models with cruise control system (CCS) |
Wiring Diagram VW JETTA 2014 - Motronic control unit - Ignition coil 1 with output stage - Ignition coil 2 with output stage - Ignition coil 3 with output stage - Ignition coil 4 with output stage - Spark plug connector - Spark plugs
J220 | Motronic control unit |
N70 | Ignition coil 1 with output stage |
N127 | Ignition coil 2 with output stage |
N291 | Ignition coil 3 with output stage |
N292 | Ignition coil 4 with output stage |
P | Spark plug connector |
Q | Spark plugs |
T4g | 4-pin connector |
T4h | 4-pin connector |
T4i | 4-pin connector |
T4j | 4-pin connector |
T121 | 121-pin connector |
15 | Earth point, on cylinder head |
281 | Earth point 1, engine prewiring harness |
283 | Earth point 2, engine prewiring harness |
D78 | Positive connection 1 (30a), in engine compartment wiring harness |
D173 | Connection (87), in engine prewiring harness |
Wiring Diagram VW JETTA 2014 - Motronic control unit
J104 | ABS control unit |
J217 | Automatic gearbox control unit |
J220 | Motronic control unit |
T4 | 4-pin connector |
T14a | 14-pin connector |
T47a | 47-pin connector |
T52 | 52-pin connector |
T121 | 121-pin connector |
283 | Earth point 2, engine prewiring harness |
608 | Earth point, central in plenum chamber |
609 | Earth point, on right in plenum chamber |
A121 | Connection (high bus), in dash panel wiring harness |
A122 | Connection (low bus), in dash panel wiring harness |
* | Only models with manual gearbox |
Wiring Diagram VW JETTA 2014 - Charge pressure sender - Hall sender - Motronic control unit - Charge pressure control solenoid valve - Camshaft control valve 1 - Turbocharger air recirculation valve
G31 | Charge pressure sender |
G40 | Hall sender |
J220 | Motronic control unit |
N75 | Charge pressure control solenoid valve |
N205 | Camshaft control valve 1 |
N249 | Turbocharger air recirculation valve |
T4k | 4-pin connector |
T121 | 121-pin connector |
220 | Earth connection (sender earth), in engine wiring harness |
D101 | Connection 1 in engine compartment wiring harness |
D102 | Connection 2 in engine compartment wiring harness |
Wiring Diagram VW JETTA 2014 - Coolant temperature display sender - Intake air temperature sender - Coolant temperature sender - Throttle valve drive for electric throttle - Throttle valve drive angle sender 1 for electric throttle - Throttle valve drive angle sender 2 for electric throttle - Motronic control unit - Throttle valve module - Fuel system diagnostic pump
G2 | Coolant temperature display sender |
G42 | Intake air temperature sender |
G62 | Coolant temperature sender |
G186 | Throttle valve drive for electric throttle |
G187 | Throttle valve drive angle sender 1 for electric throttle |
G188 | Throttle valve drive angle sender 2 for electric throttle |
J220 | Motronic control unit |
J338 | Throttle valve module |
T6h | 6-pin connector |
T14a | 14-pin connector |
T121 | 121-pin connector |
V144 | Fuel system diagnostic pump |
220 | Earth connection (sender earth), in engine wiring harness |
* | Only models with fuel system diagnostic pump |
Wiring Diagram VW JETTA 2014 - Engine speed sender - Knock sensor 1 - Knock sensor 2 - Motronic control unit
G28 | Engine speed sender |
G61 | Knock sensor 1 |
G66 | Knock sensor 2 |
J220 | Motronic control unit |
J293 | Radiator fan control unit |
T3f | 3-pin connector |
T14 | 14-pin connector |
T121 | 121-pin connector |
139 | Earth connection (sender earth), in Motronic wiring harness |
220 | Earth connection (sender earth), in engine wiring harness |
* | Connection for air conditioning system |
Wiring Diagram VW JETTA 2014 - Power assisted steering pressure switch - Motronic control unit - Injector - cylinder 1 - Injector - cylinder 2 - Injector - cylinder 3 - Injector - cylinder 4
F88 | Power assisted steering pressure switch |
J220 | Motronic control unit |
N30 | Injector, cylinder 1 |
N31 | Injector, cylinder 2 |
N32 | Injector, cylinder 3 |
N33 | Injector, cylinder 4 |
S232 | Fuse 32 in fuse holder |
T14a | 14-pin connector |
T121 | 121-pin connector |
131 | Earth connection 2, in engine compartment wiring harness |
607 | Earth point, on left in plenum chamber |
D95 | Connection (injectors), in engine compartment wiring harness |
Wiring Diagram VW JETTA 2014 - Lambda probe - Lambda probe after catalytic converter - Motronic control unit - Activated charcoal filter solenoid valve 1
G39 | Lambda probe |
G130 | Lambda probe after catalytic converter |
J220 | Motronic control unit |
N80 | Activated charcoal filter solenoid valve 1 |
T4f | 4-pin connector |
T6w | 6-pin connector |
T121 | 121-pin connector |
E30 | Connection (87a), in engine wiring harness |
Wiring Diagram VW JETTA 2014 - Cruise control system switch - Cruise control system (CCS) SET button - Motronic control unit - Vacuum pump for brakes
E45 | Cruise control system switch |
E227 | Cruise control system (CCS) SET button |
J220 | Motronic control unit |
N110 | Selector lever lock solenoid |
S235 | Fuse 35 in fuse holder |
T6aa | 6-pin connector |
T10s | 10-pin connector |
T121 | 121-pin connector |
V192 | Vacuum pump for brakes |
135 | Earth connection 2, in dash panel wiring harness |
D52 | Positive connection (15a), in engine compartment wiring harness |
E30 | Connection (87a), in engine wiring harness |
* | Only models with cruise control system (CCS) |
*2 | Only models with automatic gearbox |
Wiring Diagram VW JETTA 2014 - Air mass meter - Motronic control unit - Secondary air pump relay - Secondary air inlet valve - Secondary air pump motor
G70 | Air mass meter |
J220 | Motronic control unit |
J299 | Secondary air pump relay |
N112 | Secondary air inlet valve |
T121 | 121-pin connector |
V101 | Secondary air pump motor |
E30 | Connection (87a), in engine wiring harness |
Wiring Diagram VW JETTA 2014 - Brake light switch - Clutch pedal switch - Brake pedal switch - Motronic control unit
F | Brake light switch |
F36 | Clutch pedal switch |
F47 | Brake pedal switch |
J59 | X-contact relief relay |
J104 | ABS control unit |
J220 | Motronic control unit |
S13 | Fuse 13 in fuse holder |
T4q | 4-pin connector |
T4y | 4-pin connector |
T6ac | 6-pin connector |
T47a | 47-pin connector |
T121 | 121-pin connector |
A18 | Connection (54), in dash panel wiring harness |
A20 | Positive connection (15a), in dash panel wiring harness |
A57 | Positive connection 3 (30), in dash panel wiring harness |
E30 | Connection (87a), in engine wiring harness |
* | Only models with automatic gearbox |
Wiring Diagram VW JETTA 2014 - Accelerator position sender - Accelerator position sender 2 - Motronic control unit - Climatronic control unit
G79 | Accelerator position sender |
G185 | Accelerator position sender 2 |
J220 | Motronic control unit |
J255 | Climatronic control unit |
T6j | 6-pin connector |
T16b | 16-pin connector |
T17a | 17-pin connector |
T121 | 121-pin connector |
E30 | Connection (87a), in engine wiring harness |
* | Only models with Climatronic |
Wiring Diagram VW JETTA 2014 - Fuel pump relay - Motronic control unit - Onboard supply control unit - Fuel supply relay
J17 | Fuel pump relay |
J220 | Motronic control unit |
J519 | Onboard supply control unit |
J643 | Fuel supply relay |
T10y | 10-pin connector |
T73a | 73-pin connector |
T121 | 121-pin connector |
A189 | Positive connection 5 (30a) in dash panel wiring harness |
E30 | Connection (87a), in engine wiring harness |
Wiring Diagram VW JETTA 2014 - Fuel gauge sender - Fuel system pressurisation pump - Coolant shortage indicator sender
G | Fuel gauge sender |
G6 | Fuel system pressurisation pump |
G32 | Coolant shortage indicator sender |
S228 | Fuse 28 in fuse holder |
S234 | Fuse 34 in fuse holder |
S243 | Fuse 43 in fuse holder |
T14a | 14-pin connector |
U1 | Cigarette lighter |
42 | Earth point, next to steering column |
49 | Earth point, near ... |
81 | Earth connection 1, in dash panel wiring harness |
269 | Earth connection (sender earth) 1, in dash panel wiring harness |
A99 | Connection 1 (87) in dash panel wiring harness |
E30 | Connection (87a), in engine wiring harness |
Wiring Diagram VW JETTA 2014 - Oil pressure switch - Speedometer sender - Control unit in dash panel insert - Oil pressure warning lamp
F1 | Oil pressure switch |
F4 | Reversing light switch |
G22 | Speedometer sender |
J285 | Control unit in dash panel insert |
K3 | Oil pressure warning lamp |
S5 | Fuse 5 in fuse holder |
S7 | Fuse 7 in fuse holder |
T14a | 14-pin connector |
T32 | 32-pin connector |
B163 | Positive connection 1 (15), in interior wiring harness |
* | Only models with manual gearbox |
Wiring Diagram VW JETTA 2014 - Fuel gauge - Coolant temperature gauge - Rev. counter - Speedometer - Buzzer and gong - Control unit in dash panel insert - Onboard supply control unit
G1 | Fuel gauge |
G3 | Coolant temperature gauge |
G5 | Rev. counter |
G21 | Speedometer |
H3 | Buzzer and gong |
J255 | Climatronic control unit |
J285 | Control unit in dash panel insert |
J519 | Onboard supply control unit |
K2 | Alternator warning lamp |
K28 | Coolant temperature and coolant shortage warning lamp |
K105 | Reserve fuel warning lamp |
T4 | 4-pin connector |
T12d | 12-pin connector |
T16b | 16-pin connector |
T32 | 32-pin connector |
T73b | 73-pin connector |
A17 | Connection (61), in dash panel wiring harness |
A27 | Connection (speed signal), in dash panel wiring harness |
* | Only models with Climatronic |
Wiring Diagram VW JETTA 2014 - Multifunction display call-up button - Multifunction display memory switch - Ambient temperature sensor - Multifunction indicator - Control unit in dash panel insert - Data bus diagnostic interface - Cruise control system warning lamp - Exhaust emissions warning lamp - Electronic power control fault lamp
E86 | Multifunction display call-up button |
E109 | Multifunction display memory switch |
G17 | Ambient temperature sensor |
J104 | ABS control unit |
J119 | Multifunction indicator |
J285 | Control unit in dash panel insert |
J533 | Data bus diagnostic interface |
K31 | Cruise control system warning lamp |
K83 | Exhaust emissions warning lamp |
K132 | Electronic power control fault lamp |
T6e | 6-pin connector |
T16 | 16-pin connector |
T32 | 32-pin connector |
T32a | 32-pin connector |
T47a | 47-pin connector |
A76 | Connection (K-diagnosis wire), in dash panel wiring harness |
* | Only models with multifunction display |
*2 | Only models with no Climatronic |
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