ENGINE PERFORMANCE – Volkswagen Jetta TDI Premium 2014 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

1.4L TURBO HYBRID

1.4L Turbo Hybrid, Engine Performance Wiring Diagram (1 of 8) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.4L Turbo Hybrid, Engine Performance Wiring Diagram (1 of 8) for Volkswagen Jetta TDI Premium 2014:

• (below left headlight assembly) g655
• (if equipped) brake booster relay
• (intake air duct) charge air pressure sensor/ intake air temperature sensor 2
• (integral to brake lamp switch) brake pedal switch
• (lower left side of engine compt) g12
• (lower left side of engine) secondary air injection pump motor
• (relay carrier on electronics box) secondary air injection pump relay
• (right side of transmission) brake system vacuum pump
• Abs control module (right rear corner of engine compt)
• Brake booster pressure sensor (left rear of engine compt)
• Cooling fans system
• Engine control module (front left engine compt)
• Engine coolant temperature sensor (radiator outlet) (lower left corner of radiator)
• Evap canister purge regulator valve 2
• Fuel tank pressure sensor (fuel rail assembly)
• G12 (lower left side of engine compt)
• G44 (lower left "a" pillar)
• Leak detection pump (right rear wheelwell, near fuel filler door)
• Nca
• Oxygen sensor 1 after catalytic converter (catalytic converter 2 outlet)
• Red
• T14
• T14hy
• T2kh
• T94

1.4L Turbo Hybrid, Engine Performance Wiring Diagram (2 of 8) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.4L Turbo Hybrid, Engine Performance Wiring Diagram (2 of 8) for Volkswagen Jetta TDI Premium 2014:

• (lower left front of engine compt) coolant fan control module
• (not used)
• 10a
• 13a
• 14a
• 26a
• Accelerator pedal module
• Accelerator pedal position sensor
• Accelerator pedal position sensor 2
• Electrical drive button & push button illumination bulb
• Fuse 10a
• Fuse 10a/ 15a
• Fuse 20a
• Fuse 40a/50a
• Fuse 5a
• Fuse 5a/ 20a
• Fuse 5a/10a/ 15a
• Fuse 5a/10a/ 15a/20a
• Fuse 5a/10a/ 20a
• Fuse panel sb (left front of engine compt)
• Hot at all times
• Interior lights system
• Nca
• Oxygen sensor 1 before catalytic converter (exhaust manifold, before catalytic converter)
• Oxygen sensor 2 before catalytic converter (catalytic converter 2 inlet)
• Red
• Reduced oil pressure switch (base of oil filter housing)
• T14
• T14hy

1.4L Turbo Hybrid, Engine Performance Wiring Diagram (3 of 8) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.4L Turbo Hybrid, Engine Performance Wiring Diagram (3 of 8) for Volkswagen Jetta TDI Premium 2014:

• (lower left "a" pillar) g44
• (part of fuel delivery unit) fuel level sensor/ transfer fuel pump
• (right side of luggage compt)
• (under right side of rear seat) fuel delivery unit
• Computer data lines system
• Data lines computer
• Electronic power control malfunction indicator lamp
• Engine control module (front left engine compartment)
• Engine coolant level sensor (coolant reservoir)
• Engine coolant level/temperature indicator lamp
• Engine coolant temperature gauge
• Engine electronics indicator lamp
• Fuel gauge
• G655 (below left headlight assembly)
• G682
• Generator ind lamp
• Instrument cluster
• Instrument cluster control module
• Low fuel level ind lamp
• Malfunction ind lamp
• Oil level thermal sensor (w/ flexible service interval reminder) (oil pan assembly)
• Oil pressure ind lamp
• Oil pressure switch (right side of engine)
• Red
• Secondary air injection sensor 1 & solenoid valve (exhaust manifold assembly)
• System
• System data lines computer
• T14
• T6z
• T94

1.4L Turbo Hybrid, Engine Performance Wiring Diagram (4 of 8) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.4L Turbo Hybrid, Engine Performance Wiring Diagram (4 of 8) for Volkswagen Jetta TDI Premium 2014:

• (left front of engine) low temperature circuit coolant pump
• 13b
• 14b
• 56a
• 56b
• 59a
• 59b
• Battery fan 1
• Battery fuse panel terminal 30 wire junction
• C1s
• Computer data lines system
• D1s
• Fan activation relay
• Fuel pressure regulator valve (left rear of engine)
• Fuse 10a
• Fuse 15a
• Fuse 5a
• Fuse 80a b1a
• Fuse panel sc (left side of dash)
• G12 (lower left side of engine compt)
• G662 (left side of luggage compt)
• G701
• High voltage system fuse
• High voltage system maintenance connector
• Hot at all times
• Hybrid battery unit (luggage compt)
• Nca
• Pilot line connector 1
• Red
• T14ax
• T4lh
• T8ax

1.4L Turbo Hybrid, Engine Performance Wiring Diagram (5 of 8) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.4L Turbo Hybrid, Engine Performance Wiring Diagram (5 of 8) for Volkswagen Jetta TDI Premium 2014:

• (center of dash) climatronic control module
• (electric air conditioner compressor) a/c compressor control module
• (left side of transmission) three-phrase current drive
• B1s
• C1s
• Computer data lines system
• D1s
• D2s
• E1s
• E2s
• E3s
• Electric drive power & control electronics
• G12 (lower left side of engine compt)
• G655 (below left headlight assembly)
• Nca
• Red
• T14hy
• T20c
• T28jx
• T2va
• T2vx
• T4bk
• T4hy
• T4jx
• T4vx

1.4L Turbo Hybrid, Engine Performance Wiring Diagram (6 of 8) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.4L Turbo Hybrid, Engine Performance Wiring Diagram (6 of 8) for Volkswagen Jetta TDI Premium 2014:

• (oil pump housing) oil pressure regulation valve
• (right side of transmission) high temperature circuit coolant pump
• 16b
• 47b
• Computer data lines system
• Fuse 10a
• Fuse 15a
• Fuse 200a
• Fuse panel sb (left front of engine compt)
• Fuse panel sc (left side of dash)
• G12 (lower left side of engine compt)
• Hot at all times
• Red
• Steering column electronics control module (on steering column)
• T16l
• T52c
• Throttle valve control module (on throttle body)
• Vehicle electrical system control module (below left side of dash)

1.4L Turbo Hybrid, Engine Performance Wiring Diagram (7 of 8) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.4L Turbo Hybrid, Engine Performance Wiring Diagram (7 of 8) for Volkswagen Jetta TDI Premium 2014:

• (fuel rail assembly) fuel pressure sensor
• (intake manifold assembly)
• (left front of engine) evap canister purge regulator valve 1
• (rear of engine) engine coolant temperature sensor
• (top front of engine) camshaft adjustment valve 1
• (top front of engine) exhaust camshaft adjustment valve 1
• Camshaft position sensor (w/ intake valves) (rear of cylinder head)
• Camshaft position sensor 3 (w/ exhaust valves)
• Charge pressure actuator position sensor (on turbocharger assembly)
• Decoupler pressure actuator (top of transmission)
• Intake manifold sensor
• Knock sensor 1 (left side of engine)
• Nca

1.4L Turbo Hybrid, Engine Performance Wiring Diagram (8 of 8) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.4L Turbo Hybrid, Engine Performance Wiring Diagram (8 of 8) for Volkswagen Jetta TDI Premium 2014:

• (cylinder head, top of 1 cylinder) fuel injector cylinder 1
• (cylinder head, top of 2 cylinder) fuel injector cylinder 2
• (cylinder head, top of 3 cylinder) fuel injector cylinder 3
• (cylinder head, top of 4 cylinder) fuel injector cylinder 4
• (left rear of engine) engine speed sensor
• Engine control module (front left engine compt)
• G12 (lower left side of engine compt)
• G15
• Ignition coils w/ power output stage (top of 1, 2, 3, & 4 cylinder)
• Nca
• Positive crankcase ventilation heating element (air intake hose)
• T60
• To spark plug

1.8L TURBO

1.8L Turbo, Engine Performance Wiring Diagram (1 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.8L Turbo, Engine Performance Wiring Diagram (1 of 6) for Volkswagen Jetta TDI Premium 2014:

• (below left headlight assembly) g655
• (lower left side of engine compt) g12
• (lower left side of engine) secondary air injection pump motor
• (not used) t4x
• 21a
• Accelerator pedal module
• Accelerator pedal position sensor
• Accelerator pedal position sensor 2
• Charge air pressure sensor (intake air duct)
• Engine control module (front left engine compt)
• Engine coolant temperature sensor on radiator outlet (lower left corner of radiator)
• Fuse 50a
• Fuse panel b (left front of engine compt)
• Heated oxygen sensor
• Heater for oxygen sensor 1 after catalytic converter
• Hot at all times
• Nca
• Oxygen sensor 1 after catalytic converter (catalytic converter 2 outlet)
• Oxygen sensor 1 before catalytic converter (exhaust manifold, before catalytic converter)
• Oxygen sensor after three way catalytic converter
• Oxygen sensor heater
• Red
• Secondary air injection pump relay
• Starting/ charging system
• T14
• T91

1.8L Turbo, Engine Performance Wiring Diagram (2 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.8L Turbo, Engine Performance Wiring Diagram (2 of 6) for Volkswagen Jetta TDI Premium 2014:

• (not used)
• 10a
• 14a
• Abs control module (right rear corner of engine compt)
• Brake pedal switch & brake lamp switch (integral to brake lamp switch)
• Clutch position sensor (m/t)
• Computer data lines system
• Fuse 10a
• Fuse 10a (or 15a)
• Fuse 5a
• Fuse 5a (or 10a) (or 15a)
• Fuse 5a (or 10a) (or 20a)
• Fuse panel b (left front of engine compt)
• G605 (on steering column)
• G655 (below left headlight assembly)
• Hot at all times
• Leak detection pump (if equipped) (right rear wheelwell, near fuel filler door)
• T4x
• T73a
• T73b
• Vehicle electrical system control module (below left side of dash)

1.8L Turbo, Engine Performance Wiring Diagram (3 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.8L Turbo, Engine Performance Wiring Diagram (3 of 6) for Volkswagen Jetta TDI Premium 2014:

• 12a
• 14b
• 16b
• 47b
• Engine control module (front left engine compt)
• Fuse 10a
• Fuse 15a
• Fuse 5a
• Fuse panel b (left front of engine compt)
• Fuse panel c (left side of dash)
• Hot at all times
• Red
• Reduced oil pressure switch (base of oil filter housing)
• T105
• T14

1.8L Turbo, Engine Performance Wiring Diagram (4 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.8L Turbo, Engine Performance Wiring Diagram (4 of 6) for Volkswagen Jetta TDI Premium 2014:

• (air intake assembly) manifold absolute pressure sensor & intake manifold/air temperature sensor
• (end of cylinder head) camshaft position sensor
• (fuel rail assembly) fuel pressure sensor
• (intake manifold assembly) intake manifold runner position sensor
• (left rear of engine) engine speed sensor
• (rear of engine) engine coolant temperature sensor
• (turbocharger assembly) charge pressure actuator position sensor
• Drive epc throttle
• Epc throttle drive angle sensor 1 & 2
• Fuel injector cylinders (cylinder head, top of 1, 2, 3 & 4 cylinders)
• Intake manifold runner control valve (intake manifold assembly)
• Oil pressure regulation valve (base of block, near a/c compressor)
• Red
• Sensor 1
• Sensor 2
• T14
• T14a
• T8i
• Throttle valve control module (on throttle body)
• Turbocharger recirculation valve (turbocharger assembly)

1.8L Turbo, Engine Performance Wiring Diagram (5 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.8L Turbo, Engine Performance Wiring Diagram (5 of 6) for Volkswagen Jetta TDI Premium 2014:

• (below left headlight assembly) g655
• (coolant reservoir) engine coolant level sensor
• (oil pan assembly) (w/ flexible service interval reminder) oil level thermal sensor
• (part of fuel delivery unit) fuel level sensor & transfer fuel pump
• (part of fuel delivery unit) fuel pump control module
• (right side of luggage compt) g682
• After-run coolant pump & throttle valve control module (lower left side of engine)
• Camshaft adjustment valve 1 (front of cylinder head)
• Engine control module (front left engine compt)
• Fuel pressure regulator valve (top front of cylinder head)
• G12 (lower left side of engine compt)
• Knock sensor 1 (left side of engine block)
• Red
• T105
• T14
• T6z

1.8L Turbo, Engine Performance Wiring Diagram (6 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 1.8L Turbo, Engine Performance Wiring Diagram (6 of 6) for Volkswagen Jetta TDI Premium 2014:

• Computer data lines system
• Computer data lines systems
• Cpka
• Cpra
• Cruise control system
• Electronic power control malfunction indicator lamp
• Engine control module (front left engine compt)
• Engine coolant level/ temperature indicator
• Engine coolant temperature gauge
• Evap canister purge regulator valve 1 (top of engine)
• Fuel gauge
• G12 (lower left side of engine compt)
• G15
• Ignition coil 1 w/ power output stage (top of 1 cylinder)
• Ignition coil 2 w/ power output stage (top of 2 cylinder)
• Ignition coil 3 w/ power output stage (top of 3 cylinder)
• Ignition coil 4 w/ power output stage (top of 4 cylinder)
• Instrument cluster
• Instrument cluster control module
• Low fuel level indicator lamp
• Malfunction indicator lamp
• Nca
• Oil level indicator lamp
• Oil pressure switch (left rear of engine)
• Red
• Secondary air injection sensor 2 (exhaust manifold)
• Secondary air injection solenoid valve
• Secondary air system & injection sensor 1 (exhaust manifold)
• Starting/ charging system
• T105
• T14
• T91
• To spark plug

2.0L

2.0L, Engine Performance Wiring Diagram (1 of 4) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L, Engine Performance Wiring Diagram (1 of 4) for Volkswagen Jetta TDI Premium 2014:

• (below left side of dash) vehicle electrical system control module
• (or 61)
• (or 62)
• 10a
• 14a
• Abs control module (right rear of corner engine compt)
• Brake lamp switch & brake pedal switch (brake lamp switch: brake master cylinder) (brake pedal switch: integral to brake lamp switch)
• Clutch position sensor (m/t)
• Computer data lines system
• Coolant fan control module (lower left front of engine compt)
• Cooling fans system
• Engine control module (front left engine compt)
• Engine coolant temperature sensor (on radiator outlet) (lower left corner of radiator)
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 5a
• Fuse panel sb (left front of engine compt)
• G605 (on steering column)
• G655 (below left headlight assembly)
• Hot at all times
• Leak detection pump (right rear wheelwell, near fuel filler door)
• T73a
• T73b
• T94
• W/ esp
• W/o esp

2.0L, Engine Performance Wiring Diagram (2 of 4) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L, Engine Performance Wiring Diagram (2 of 4) for Volkswagen Jetta TDI Premium 2014:

• (12-relay carrier) fuel pump relay
• (brake system vacuum pump: right side of transmission) (a/t) brake system vacuum pump & vacuum pump relay
• (coolant reservoir) engine coolant level (ecl) sensor
• (part of fuel delivery unit) transfer fuel pump/ fuel level sensor
• 14b
• 16b
• 26b
• 47b
• Accelerator pedal position sensor & accelerator pedal position sensor 2 (accelerator pedal position sensor: accelerator pedal assembly)
• Fuse 10a
• Fuse 15a
• Fuse panel sc (left side of dash)
• G12 (lower left rear of engine compt)
• G655 (below left headlight assembly)
• G682 (right side of luggage compt)
• Heated oxygen sensor & oxygen sensor heater (heated oxygen sensor: exhaust manifold, before catalytic converter)
• Hot at all times
• Ignition coil (left side of engine)
• Nca
• Oxygen sensor after three way catalytic converter & oxygen sensor 1 heater after catalytic converter (exhaust, after catalytic converter)
• Positive crankcase ventilation heating element (air intake hose)
• Red
• T14
• T44
• T4y
• To spark plug

2.0L, Engine Performance Wiring Diagram (3 of 4) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L, Engine Performance Wiring Diagram (3 of 4) for Volkswagen Jetta TDI Premium 2014:

• (below left headlight assembly)
• (oil pump housing) oil pressure switch
• Computer data lines system
• Cruise control ind lamp
• Electronic power control malfunction ind lamp
• Engine control module (front left engine compt)
• Engine coolant level/ temperature ind lamp
• Engine coolant temperature gauge
• Fuel gauge
• G605 (on steering column)
• G655
• Generator ind lamp
• Instrument cluster
• Instrument cluster control module
• Low fuel ind lamp
• Malfunction ind lamp
• Oil level thermal sensor (oil pan assembly)
• Oil pressure ind lamp
• Red
• Speedometer
• T14
• T60
• T6z
• Tachometer
• Warning buzzer & tone

2.0L, Engine Performance Wiring Diagram (4 of 4) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L, Engine Performance Wiring Diagram (4 of 4) for Volkswagen Jetta TDI Premium 2014:

• (intake manifold)
• (top of intake manifold) evaporative emission (evap) canister purge regulator valve 1
• Camshaft position sensor (rear of cylinder head)
• Computer data lines system
• Cruise control system
• Cylinder 1 fuel injector
• Cylinder 2 fuel injector
• Cylinder 3 fuel injector
• Cylinder 4 fuel injector
• Engine control module (front left engine compt)
• Engine coolant temperature (ect) sensor (coolant pump housing)
• Engine speed (rpm) sensor (left rear of engine)
• Knock sensor 1 (front of cylinder block)
• Manifold absolute pressure (map) sensor & intake air temperature sensor (air intake assembly)
• Red
• Starting/charging system
• T14
• T4y
• T60
• T94
• Throttle valve control module (on throttle body)

2.0L TURBO

2.0L Turbo, Engine Performance Wiring Diagram (1 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (1 of 6) for Volkswagen Jetta TDI Premium 2014:

• 10a
• 14a
• Accelerator pedal position sensor 1 & 2 (accelerator pedal assembly)
• Assembly)
• Charge air pressure sensor (intake air duct)
• Coolant fan control module (lower left front of engine compt)
• Cooling fans system
• Engine control module (ecm) (front left engine compt)
• Engine coolant temperature sensor (on radiator outlet) (lower left corner of radiator)
• Fuse 10a
• Fuse 10a/15a
• Fuse 5a
• Fuse 5a 5a 5a
• Fuse 5a/ 10a/ 15a/20a
• Fuse 5a/ 10a/ 20a
• Fuse panel b (left front of engine compt)
• G655 (below left headlight
• Heated oxygen sensor
• Heater for oxygen sensor 1 after catalytic converter
• Hot at all times
• Nca
• Oxygen sensor 1 after catalytic converter (catalytic converter 2 outlet)
• Oxygen sensor 1 before catalytic converter (exhaust manifold, before catalytic converter)
• Oxygen sensor after three way catalytic converter
• Oxygen sensor heater
• Red
• Starting/ charging system
• T91

2.0L Turbo, Engine Performance Wiring Diagram (2 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (2 of 6) for Volkswagen Jetta TDI Premium 2014:

• (below left side of dash)
• (lower left side of engine)
• 21a
• Abs control
• Brake pedal switch/brake lamp switch (brake master cylinder)
• Clutch position sensor (m/t)
• Computer data lines system
• Fuse 50a
• Fuse panel b (left front of engine compt)
• G12 (lower left side of engine compt)
• G605 (on steering column)
• G655 (below left headlight assembly)
• Hot at all times
• Leak detection pump (if equipped) (right rear wheelwell, near fuel filler door)
• Module (right rear corner of engine compt)
• Secondary air injection pump motor
• Secondary air injection pump relay
• T14
• T52b
• T52c
• Vehicle electrical system control module

2.0L Turbo, Engine Performance Wiring Diagram (3 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (3 of 6) for Volkswagen Jetta TDI Premium 2014:

• 12a
• 14b
• 16b
• 47b
• Engine control module (front left engine compt)
• Fuse 10a
• Fuse 15a
• Fuse 5a
• Fuse panel b (left front of engine compt)
• Fuse panel c (left side of dash)
• Hot at all times
• Red
• Reduced oil pressure switch (base of oil filter housing)
• T105
• T14

2.0L Turbo, Engine Performance Wiring Diagram (4 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (4 of 6) for Volkswagen Jetta TDI Premium 2014:

• (air intake assembly) manifold absolute pressure sensor & intake air temperature sensor
• (exhaust manifold assembly) secondary air injection sensor 1/ solenoid valve
• (exhaust manifold assembly) secondary air injection solenoid valve
• (exhaust manifold) secondary air injection sensor 2
• (fuel rail assembly) fuel pressure sensor
• (intake manifold assembly) intake manifold runner position sensor
• (left rear of engine)
• (rear of cylinder head) camshaft position sensor
• (turbocharger assembly) charge pressure actuator position sensor
• Cpla
• Cppa
• Engine speed sensor
• Fuel injector cylinders (intake manifold)
• Intake manifold runner control valve (intake manifold assembly)
• Oil pressure regulation valve (oil pump housing)
• Red
• Sensor 1
• Sensor 2
• T14
• T14a
• T8i
• Throttle drive
• Throttle valve control module (on throttle body)
• Turbocharger recirculation valve (turbocharger assembly)

2.0L Turbo, Engine Performance Wiring Diagram (5 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (5 of 6) for Volkswagen Jetta TDI Premium 2014:

• (below left headlight assembly) g655
• (coolant reservoir) engine coolant level sensor
• (oil pan assembly) (if equipped) oil level thermal sensor
• (part of fuel delivery unit) fuel level sensor & transfer fuel pump
• (part of fuel delivery unit) fuel pump (fp) control module
• (rear of engine)
• After-run coolant pump (lower left side of engine)
• Camshaft adjustment valve 1 (front of cylinder head)
• Engine control module (front left engine compt)
• Engine coolant temperature sensor
• Fuel pressure regulator valve (high pressure pump)
• G12 (lower left side of engine compt)
• G682 (right side of luggage compt)
• Knock sensor 1 (front of cylinder block)
• Red
• T105
• T14
• T6z

2.0L Turbo, Engine Performance Wiring Diagram (6 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (6 of 6) for Volkswagen Jetta TDI Premium 2014:

• (top of 1,2, 3 & 4 cylinders)
• Computer data lines system
• Computer data lines systems
• Cruise control system
• Electronic power control malfunction indicator lamp
• Engine control module (front left engine compt)
• Engine coolant level/ temperature indicator lamp
• Engine coolant temperature gauge
• Engine electronics indicator lamp
• Evaporative emission (evap) canister purge regulator valve 1 (top of intake manifold)
• Fuel gauge
• G12 (lower left side of engine compt)
• G15
• G605 (on steering column)
• Ignition coil 1 w/ power output stage
• Ignition coil 2 w/ power output stage
• Ignition coil 3 w/ power output stage
• Ignition coil 4 w/ power output stage
• Instrument cluster
• Instrument cluster control module
• Low fuel level indicator lamp
• Malfunction (mil) indicator lamp
• Nca
• Oil level indicator lamp
• Oil pressure indicator lamp
• Oil pressure switch (oil pump housing)
• Power distribution system
• Red
• Starting/ charging system
• T105
• T14
• T91
• To spark plug

2.0L TURBO DIESEL

2.0L Turbo Diesel, Engine Performance Wiring Diagram (1 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L Turbo Diesel, Engine Performance Wiring Diagram (1 of 6) for Volkswagen Jetta TDI Premium 2014:

• (accelerator pedal position sensor: accelerator pedal assembly) accelerator pedal position sensor 2 & accelerator pedal position sensor
• (below left headlight assembly) g655
• (intake air duct) mass airflow (maf) sensor
• (lower left front of engine compt) coolant fan control module
• (or 61)
• (or 62)
• 14a
• 26a
• Clutch position sensor (m/t)
• Cruise control system
• Engine control module (front left engine compt)
• Engine coolant temperature sensor (on radiator outlet) (lower left corner of radiator)
• Exhaust gas temperature (egt) sensor 2 (exhaust manifold, at turbocharger)
• Exhaust gas temperature (egt) sensor 3 (exhaust manifold, at turbocharger)
• Exhaust gas temperature (egt) sensor 4 (exhaust manifold, at turbocharger)
• Exhaust gas temperature sensor 1 (exhaust manifold,at turbocharger)
• Fuse 15a
• Fuse 5a
• Fuse 60a
• Fuse panel sb (left front of engine compt)
• G605 (on steering column)
• Hot at all times
• Red
• T14
• T73b
• T94
• Vehicle electrical system control module (below left side of dash)

2.0L Turbo Diesel, Engine Performance Wiring Diagram (2 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L Turbo Diesel, Engine Performance Wiring Diagram (2 of 6) for Volkswagen Jetta TDI Premium 2014:

• (below left side of dash) vehicle electrical system control module
• (heated oxygen sensor: exhaust manifold, before catalytic converter) heated oxygen sensor & oxygen sensor heater
• (on steering column) g605
• (right rear corner of engine compt) abs control module
• Brake pedal switch & brake lamp switch (brake pedal switch: integral to brake lamp switch) (brake lamp switch: brake master cylinder)
• Differential pressure sensor (center rear of engine compt)
• Egr potentiometer & egr vacuum regulator solenoid valve (egr potentiometer: part of egr vacuum regulator solenoid valve) (egr vacuum regulator solenoid valve: throttle body)
• Engine speed (rpm) sensor (left rear of engine)
• Exhaust door control unit (center of vehicle, after catalytic converter)
• Exhaust pressure sensor 1 (auxiliary fuel pump bracket)
• Nca
• Oxygen sensor after three way catalytic converter & oxygen sensor 1 after catalytic converter heater (oxygen sensor after three way catalytic converter: exhaust, after catalytic converter)
• Red
• T14
• T5k
• T73a
• W/ abs & esp
• W/ abs & w/o esp

2.0L Turbo Diesel, Engine Performance Wiring Diagram (3 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L Turbo Diesel, Engine Performance Wiring Diagram (3 of 6) for Volkswagen Jetta TDI Premium 2014:

• (driver's side footwell trim)
• (lower left kick panel) g602
• 10a
• 21a
• 22a
• 32a
• Auxiliary air heater heating element
• Engine coolant temperature (ect) sensor (rear of engine)
• Fuel pressure sensor (fuel rail assembly)
• Fuel temperature sensor (high pressure pump)
• Fuse 40a
• Fuse 50a
• Fuse 5a
• Fuse panel sb (left front of engine compt)
• G12 (lower left side of engine compt)
• High heat output relay (w/ auxiliary heater)
• Hot at all times
• Low heat output relay (w/ auxiliary heater)
• Red
• T14
• Throttle valve control module & throttle position sensor (throttle valve control module: on throttle body) (throttle position sensor: accelerator pedal assembly)

2.0L Turbo Diesel, Engine Performance Wiring Diagram (4 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L Turbo Diesel, Engine Performance Wiring Diagram (4 of 6) for Volkswagen Jetta TDI Premium 2014:

• (12-relay carrier) fuel pump relay
• (12-relay carrier) fuel pump relay 2
• (on auxiliary relay carrier) automatic glow time control module
• (part of fuel delivery unit) fuel level sensor & transfer fuel pump (fp)
• Egr temperature sensor
• Engine control module (front left engine compt)
• Fuel metering valve (high pressure fuel pump)
• Fuel pressure regulator valve (fuel rail assembly)
• Fuel pump 2
• G12 (lower left side of engine compt)
• G655 (below left headlight assembly)
• G682 (right side of luggage compt)
• Red
• T14
• T60

2.0L Turbo Diesel, Engine Performance Wiring Diagram (5 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L Turbo Diesel, Engine Performance Wiring Diagram (5 of 6) for Volkswagen Jetta TDI Premium 2014:

• (coolant reservoir) engine coolant level (ecl) sensor
• (oil pump housing) oil pressure switch
• Camshaft position (cmp) sensor (end of cylinder head)
• Computer data lines system
• Cruise control ind lamp
• Electronic power control malfunction ind lamp
• Engine coolant level/ temperature (ecl/ect) ind lamp
• Engine coolant temperature gauge
• Fuel gauge
• G655 (below left headlight assembly)
• Instrument cluster
• Instrument cluster control module
• Internal pressure sensor cylinder 1 & glow plug 1
• Internal pressure sensor cylinder 2 & glow plug 2
• Internal pressure sensor cylinder 3 & glow plug 3
• Internal pressure sensor cylinder 4 & glow plug 4
• Low fuel level ind lamp
• Malfunction ind lamp
• Nca
• Oil level thermal sensor (w/ flexible service interval reminder) (oil pan assembly)
• Oil pressure ind lamp
• Red
• Speedometer
• T14
• T6z
• Tachometer

2.0L Turbo Diesel, Engine Performance Wiring Diagram (6 of 6) for Volkswagen Jetta TDI Premium 2014

List of elements for 2.0L Turbo Diesel, Engine Performance Wiring Diagram (6 of 6) for Volkswagen Jetta TDI Premium 2014:

• (air intake hose) (if equipped) positive crankcase ventilation (pcv) heating element
• 14b
• 15b
• 16b
• 47b
• Charge pressure actuator position sensor (turbocharger assembly)
• Computer data lines system
• Cooling fans system
• Cylinder fuel injectors (top of cylinders)
• Engine control module (front left engine compt)
• Exhaust gas recirculation (egr) position sensor 2 & egr valve 2
• Fuse 10a
• Fuse 15a
• Fuse panel sc (left side of dash)
• Hot at all times
• Intake air temperature (iat) & charge air pressure sensor (intake air temperature (iat) sensor: integral to charge air pressure sensor) (charge air pressure sensor: intake air duct)
• Intake manifold runner position sensor & intake flap motor (intake manifold)
• Red
• Starting/charging system
• T14
• T4aj
• T60
• T94
• Wastegate bypass regulator valve (turbocharger assembly)