ENGINE PERFORMANCE – Volkswagen Passat S 2012 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.0L TURBO DIESEL

2.0L Turbo Diesel, Engine Performance Wiring Diagram (1 of 7) for Volkswagen Passat S 2012

List of elements for 2.0L Turbo Diesel, Engine Performance Wiring Diagram (1 of 7) for Volkswagen Passat S 2012:

• (on diesel particulate filter housing)
• (under left headlight assembly) g655
• (upper steering column) g605
• Engine control module (ecm) (left front of engine compt)
• Engine coolant temperature sensor on radiator outlet (integral w/ radiator hose)
• Exhaust gas temperature sensor 2
• Exhaust gas temperature sensor 3
• Exhaust gas temperature sensor 4
• G605 (upper steering column)
• Generator
• Nca
• Red
• Reducing agent injector (in exhaust, upstream of nox reduction catalytic converter)
• Starter
• Starting/ charging system
• Starting/charging system
• Steering column electronic system control module (w/ cruise control) (on steering column)
• T10g
• T16l
• T4t
• T94

2.0L Turbo Diesel, Engine Performance Wiring Diagram (2 of 7) for Volkswagen Passat S 2012

List of elements for 2.0L Turbo Diesel, Engine Performance Wiring Diagram (2 of 7) for Volkswagen Passat S 2012:

• (behind left side of dash) vehicle electrical system control module
• (on exhaust valve)
• (on intake air tube)
• (right rear of engine) oil pressure switch
• (upper steering column) g605
• Accelerator pedal module
• Adapter cable
• Automatic glow time control module (in engine compartment electronics box)
• Computer data lines system
• Exhaust door control unit
• Fuse 7.5a
• Fuse panel c (at left end of dash)
• G605 (upper steering column)
• G655 (under left headlight assembly)
• Heated oxygen sensor & oxygen sensor heater (in exhaust, upstream of catalytic converter)
• Mass air flow sensor
• Nca
• Nox sensor (in exhaust, downstream of exhaust valve)
• Nox sensor control module (near front of exhaust)
• Red
• Resistor
• T14
• T52b
• T52c

2.0L Turbo Diesel, Engine Performance Wiring Diagram (3 of 7) for Volkswagen Passat S 2012

List of elements for 2.0L Turbo Diesel, Engine Performance Wiring Diagram (3 of 7) for Volkswagen Passat S 2012:

• (on charge air cooler)
• (on clutch slave cylinder) (m/t) clutch position sensor
• (on coolant reservoir) engine coolant level sensor
• (upper steering column) g605
• Charge air pressure sensor/intake air temperature sensor & intake manifold sensor
• Computer data lines system
• Cylinder 1 combustion chamber pressure sensor & glow plug 1
• Cylinder 2 combustion chamber pressure sensor & glow plug 2
• Cylinder 3 combustion chamber pressure sensor & glow plug 3
• Cylinder 4 combustion chamber pressure sensor & glow plug 4
• Differential pressure sensor (mounted on diesel particulate filter housing)
• Electronic power control malfunction ind lamp
• Engine coolant level/ temperature indicator lamp
• Engine coolant temperature gauge
• Exhaust pressure sensor 1 (on diesel particulate filter housing)
• Fuel gauge
• G605 (upper steering column)
• Instrument cluster
• Instrument cluster control module
• Low fuel level ind lamp
• Malfunction ind lamp
• Oil pressure ind lamp
• Red
• T10g
• T14

2.0L Turbo Diesel, Engine Performance Wiring Diagram (4 of 7) for Volkswagen Passat S 2012

List of elements for 2.0L Turbo Diesel, Engine Performance Wiring Diagram (4 of 7) for Volkswagen Passat S 2012:

• (in engine compt electronics box) fuse panel b
• (left front of engine compartment)
• (not used)
• (on master brake cylinder)
• (right rear of engine compt)
• 14a
• 25a
• 26a
• Abs control module
• Brake light switch & brake pedal switch
• Cooling fans system
• Engine control module (ecm)
• Exterior lights system
• Fuse 10a
• Fuse 20a
• Fuse 30a
• Fuse 40a
• Fuse 50a
• Fuse 5a
• G605 (upper steering column)
• High heat output relay (w/ auxiliary heater)
• Hot at all times
• Lines system computer data
• Low heat output relay (w/ auxiliary heater)
• Red
• Starting/charging system
• T14
• T94

2.0L Turbo Diesel, Engine Performance Wiring Diagram (5 of 7) for Volkswagen Passat S 2012

List of elements for 2.0L Turbo Diesel, Engine Performance Wiring Diagram (5 of 7) for Volkswagen Passat S 2012:

• (in engine compt electronics box) fuse panel b
• (integral to reducing agent delivery module) reducing agent heater control module
• (integral to reducing agent delivery module) reducing agent tank heater & temperature sensor
• (top of engine) fuel injector cylinders
• 13b
• 21a
• 22a
• 24b
• 32a
• Fuse 10a
• Fuse 20a (or 30a)
• Fuse 40a
• Fuse panel c (at left end of dash)
• G50 (left side of trunk)
• Hot at all times
• Nca
• Positive crankcase ventilation heating element (on vent hose assembly)
• Red
• Reducing agent reservoir processing unit
• Reducing agent reservoir sensor (integral to reducing agent delivery module)
• Reducing agent reversing valve (integral to reducing agent delivery module)
• T14
• T14a
• T3ah
• T4as
• T5h
• T8l
• Wastegate bypass regulator valve (under intake manifold)

2.0L Turbo Diesel, Engine Performance Wiring Diagram (6 of 7) for Volkswagen Passat S 2012

List of elements for 2.0L Turbo Diesel, Engine Performance Wiring Diagram (6 of 7) for Volkswagen Passat S 2012:

• (in fuel delivery unit) fuel level sensor/transfer fuel pump
• (integral to reducing agent delivery module) reducing agent line heater
• (integral to reducing agent delivery module) reducing agent pump heater
• (left rear of engine)
• (on egr cooler/ in egr valve 2)
• (on upper relay carrier on vehicle electrical syste control module) fuel pump relay
• Auxiliary heater heating element
• Egr valve 1/egr motor & egr potentiometer (on intake manifold/ in egr valve 1)
• Egr valve 2/egr motor 2 & exhaust gas recirculation position sensor 2
• Engine speed sensor
• Fuel pressure sensor (end of fuel rail)
• G44
• G50 (left side of trunk)
• G51 (right side of trunk)
• Red
• T8l
• Throttle valve control module (on throttle body)

2.0L Turbo Diesel, Engine Performance Wiring Diagram (7 of 7) for Volkswagen Passat S 2012

List of elements for 2.0L Turbo Diesel, Engine Performance Wiring Diagram (7 of 7) for Volkswagen Passat S 2012:

• (in exhaust, upstream of catalytic converter) egr temperature sensor
• (integral to reducing agent delivery module) reducing agent metering system pressure sensor
• (on high pressure pump) fuel temperature sensor
• (on thermostat housing) engine coolant temperature sensor
• (on turbocharger) exhaust gas temperature sensor 1
• Camshaft position sensor (on front of cylinder head)
• Charge air cooling pump (rear of engine)
• Charge pressure actuator position sensor (on turbocharger)
• Engine control module (ecm) (left front of engine compt)
• Fuel metering valve (on high pressure pump)
• Fuel pressure regulator valve (end of fuel rail)
• G640 (lower left side of engine compt)
• Nca
• Red
• T14
• T60
• T8l

2.5L

2.5L, Engine Performance Wiring Diagram (1 of 5) for Volkswagen Passat S 2012

List of elements for 2.5L, Engine Performance Wiring Diagram (1 of 5) for Volkswagen Passat S 2012:

• (not used)
• (under left headlight assembly) g655
• 14a
• 21a
• 25a
• Abs control module (right rear of engine compt)
• Brake light switch/ brake pedal switch (on master brake cylinder)
• Clutch position sensor (m/t) (on clutch slave cylinder)
• Cooling fans system
• Engine control module (left front of engine compt)
• Engine coolant temperature sensor on radiator (integral w/ radiator hose)
• Fuse 10a
• Fuse 10a (or 15a)
• Fuse 15a
• Fuse 30a
• Fuse 40a
• Fuse 5a
• Fuse panel b (in engine compartment electronics box)
• G605 (upper steering column)
• Hot at all times
• If equipped
• Leak detection pump (ldp) (in right rear wheelwell)
• Secondary air injection pump relay (if equipped)
• T94

2.5L, Engine Performance Wiring Diagram (2 of 5) for Volkswagen Passat S 2012

List of elements for 2.5L, Engine Performance Wiring Diagram (2 of 5) for Volkswagen Passat S 2012:

• (behind left side of dash) vehicle electrical system control module
• (or red)
• 13b
• Accelerator pedal position sensor & sensor 2 (installed in accelerator pedal module)
• Computer data lines system
• Fuse 5a
• Fuse 7.5a
• Fuse panel c (at left end of dash)
• G605 (upper steering column)
• G640 (lower left side of engine compt)
• Heated oxygen sensor/ w/ oxygen sensor heater
• Hot at all times
• If equipped
• Nca
• Oxygen sensor after three way catalytic converter (if equipped)
• Oxygen sensor in bank 1 center three way catalytic converter (if equipped)
• Secondary air injection pump motor (if equipped) (lower left
• Side of engine)
• T52b
• T52c

2.5L, Engine Performance Wiring Diagram (3 of 5) for Volkswagen Passat S 2012

List of elements for 2.5L, Engine Performance Wiring Diagram (3 of 5) for Volkswagen Passat S 2012:

• (coolant reservoir) engine coolant level sensor
• (in fuel delivery unit) transfer fuel pump/ fuel level sensor
• (on upper relay carrier on vehicle electrical system control module)
• (or red)
• (top of engine)
• 24b
• Fuel pump relay
• Fuse 15a
• Fuse panel c (left side of dash)
• G15
• G51 (right side of trunk)
• G605 (upper steering column)
• G640 (lower left side of engine compt)
• Hot at all times
• 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
• Ignition coil 5 w/ power output stage
• Nca
• Red
• Secondary air injection solenoid valve (right rear of engine)
• Starter
• T14
• To spark plug

2.5L, Engine Performance Wiring Diagram (4 of 5) for Volkswagen Passat S 2012

List of elements for 2.5L, Engine Performance Wiring Diagram (4 of 5) for Volkswagen Passat S 2012:

• (left rear of engine) oil pressure switch
• (or red)
• (rear of cylinder head) camshaft adjustment valve 1
• (upper steering column) g605
• Computer data lines system
• Electronic power control malfunction ind lamp
• Engine control module (left front of engine compt)
• Engine coolant level/ temperature indicator lamp
• Engine coolant temperature gauge
• Engine coolant temperature sensor (on thermostat housing)
• Evap canister purge regulator valve 1
• Fuel gauge
• Instrument cluster
• Instrument cluster control module
• Low fuel level ind lamp
• Malfunction ind lamp
• Oil level ind lamp
• Oil pressure ind lamp
• Red
• Reduced oil pressure switch (left rear of engine)
• T14
• T60
• Throttle valve control module (on throttle body)

2.5L, Engine Performance Wiring Diagram (5 of 5) for Volkswagen Passat S 2012

List of elements for 2.5L, Engine Performance Wiring Diagram (5 of 5) for Volkswagen Passat S 2012:

• (lower left rear of engine) oil pressure regulation valve
• (or red)
• (top of engine) fuel injector cylinder 1
• (top of engine) fuel injector cylinder 2
• (top of engine) fuel injector cylinder 3
• (top of engine) fuel injector cylinder 4
• (top of engine) fuel injector cylinder 5
• Camshaft position sensor (left front of cylinder head)
• Computer data lines system
• Engine control module (ecm) (left front of engine compt)
• Engine speed sensor (bottom rear of engine)
• Knock sensor 1 (right side of engine)
• Knock sensor 2 (right side of engine)
• Manifold absolute pressure sensor & intake air temperature sensor (rear of intake manifold)
• Nca
• Red
• Secondary air injection sensor 1
• Starter relay 1
• Starting/charging system
• Steering column electronic systems control module (w/ cruise control) (on steering column) t16l
• T14
• T60
• T94

3.6L

3.6L, Engine Performance Wiring Diagram (1 of 8) for Volkswagen Passat S 2012

List of elements for 3.6L, Engine Performance Wiring Diagram (1 of 8) for Volkswagen Passat S 2012:

• (integral w/ radiator hose) engine temperature sensor on radiator outlet
• (on master brake cylinder) brake lamp switch & brake pedal switch
• Cooling fans system
• Engine control module (ecm) (left front of engine compt)
• G605 (under steering column)
• G655 (under left headlight assembly)
• Starting/ charging system
• T14
• T94

3.6L, Engine Performance Wiring Diagram (2 of 8) for Volkswagen Passat S 2012

List of elements for 3.6L, Engine Performance Wiring Diagram (2 of 8) for Volkswagen Passat S 2012:

• (on steering column) steering column electronic system control module
• (on upper relay carrier on vehicle electrical system control module)
• Accelerator pedal module
• Dsg transmission mechatronic (if equipped)
• G605 (upper steering column)
• Mass airflow sensor & intake air temperature sensor (intake air temperature sensor : on charge air cooler)
• Red
• Starter
• T16l

3.6L, Engine Performance Wiring Diagram (3 of 8) for Volkswagen Passat S 2012

List of elements for 3.6L, Engine Performance Wiring Diagram (3 of 8) for Volkswagen Passat S 2012:

• (on coolant reservoir) engine coolant level sensor
• (on fuel delivery unit) fuel pump control module
• (on oil filter mount assembly) oil pressure switch
• (top right side of fuel tank) fuel delivery unit
• Fuse 7.5a
• Fuse panel c (at left end of dash)
• G51 (right side of trunk)
• G605 (upper steering column)
• G655 (under left headlight assembly)
• Heated oxygen sensor (integral w/ right exhaust manifold)
• Lines system computer data
• Nca
• Oil level thermal sensor (bottom of engine oil pan)
• Positive crankcase ventilation heating element (on vent hose assembly)
• Resistor
• T14
• T52b
• T52c
• T6z
• Vehicle electrical system control module (behind left side of dash)

3.6L, Engine Performance Wiring Diagram (4 of 8) for Volkswagen Passat S 2012

List of elements for 3.6L, Engine Performance Wiring Diagram (4 of 8) for Volkswagen Passat S 2012:

• (or 20a)
• 24a
• Charge air pressure gauge
• Computer data lines system
• Electronic power control malfunction indicator lamp
• Engine control module (left front of engine compt)
• Fuel gauge
• Fuse 15a
• Fuse 30a
• Fuse panel c (at left end of dash)
• Generator w/ voltage regulator
• Heated oxygen sensor 2
• Hot at all times
• Instrument cluster
• Instrument cluster control module
• Lines system computer data
• Low fuel level ind lamp
• Malfunction indicator lamp
• Nca
• Oil level ind lamp
• Oil pressure ind lamp
• Resistor
• System starting/charging
• T4t
• T94

3.6L, Engine Performance Wiring Diagram (5 of 8) for Volkswagen Passat S 2012

List of elements for 3.6L, Engine Performance Wiring Diagram (5 of 8) for Volkswagen Passat S 2012:

• (not used)
• 10a
• 11a
• 12a
• 14a
• Auxiliary engine coolant pump relay
• Fuse 10a
• Fuse 16a
• Fuse 20a
• Fuse 30a
• Fuse 5a
• Fuse panel b (in engine compt electronics box)
• Hot at all times
• Leak detection pump (ldp) (in right rear wheelwell)
• Nca
• Oxygen sensor 1 after three way catalytic converter
• Oxygen sensor 2 after catalytic converter
• Red
• Relay

3.6L, Engine Performance Wiring Diagram (6 of 8) for Volkswagen Passat S 2012

List of elements for 3.6L, Engine Performance Wiring Diagram (6 of 8) for Volkswagen Passat S 2012:

• (end of fuel rail) fuel pressure sensor
• (left front of cylinder head) camshaft position (cmp) sensor 2
• (on fuel rail cross-over tube) low fuel pressure sensor
• (on thermostat housing) engine coolant temperature (ect) sensor
• (right front of cylinder head) camshaft position (cmp) sensor
• Coolant recirculation pump
• G640 (lower left side of engine compt)
• T14
• Throttle valve control module (on throttle body)

3.6L, Engine Performance Wiring Diagram (7 of 8) for Volkswagen Passat S 2012

List of elements for 3.6L, Engine Performance Wiring Diagram (7 of 8) for Volkswagen Passat S 2012:

• (front of cylinder head) camshaft adjustment valve 1
• (front of cylinder head) camshaft adjustment valve 1 (exhaust)
• (on left side of engine) evap canister purge regulator valve 1
• (rear of engine) fuel pressure regulator valve
• Engine speed sensor (left rear of engine)
• Knock sensor 1 (between cylinders 1 & 3)
• Knock sensor 2 (between cylinders 4 & 6)
• Nca
• Red
• T14

3.6L, Engine Performance Wiring Diagram (8 of 8) for Volkswagen Passat S 2012

List of elements for 3.6L, Engine Performance Wiring Diagram (8 of 8) for Volkswagen Passat S 2012:

• (top of engine)
• Engine control module (ecm) (left front of engine compt)
• Fuel injector 1 cylinder
• Fuel injector 2 cylinder
• Fuel injector 3 cylinder
• Fuel injector 4 cylinder
• Fuel injector 5 cylinder
• Fuel injector 6 cylinder
• G15
• G640 (lower left side of engine compartment)
• Ignition coils w/ power output stage (top of engine)
• Nca
• Red
• T14
• T60
• To spark plug