ENGINE PERFORMANCE – Subaru Impreza WRX Limited 2014 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.5L TURBO

2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (1 of 5) for Subaru Impreza WRX Limited 2014

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (1 of 5) for Subaru Impreza WRX Limited 2014:

• (left side of dash) clutch switch
• (left side of dash) data link connector
• (right side of dash) delivery (test) mode connector b75
• (right side of dash) j/c b122
• Accelerator pedal position sensor (left side of dash)
• Air conditioning system
• Anti-theft system
• B128
• B135
• B136
• B36
• B364 b363
• B438
• B440
• B441
• B76
• B92
• Computer data lines system
• Cooling fans system
• Cruise control system
• Elcm vacuum pump (fuel tank)
• Electronic throttle control relay (right relay block)
• Engine control module (right side of dash)
• Fuse 15a
• I53
• J/c b83 (right side of dash)
• Mass air flow & intake air temperature sensor (right side of engine compt)
• Multi j/c b440, b441 & b438
• Multi select switch
• Nca
• Neutral position switch (m/t) (left side of transmission)
• Pnk
• Pressure sensor
• R98
• Red
• Right fuse & relay box (f/b)
• Starting/ charging system
• Starting/charging system
• Switching valve
• Test mode sub connector pnk

2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (2 of 5) for Subaru Impreza WRX Limited 2014

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (2 of 5) for Subaru Impreza WRX Limited 2014:

• (right relay block) a/f & oxygen sensor relay
• (right relay block) main relay
• B145
• B186
• B97
• B98
• Buzzer
• Can transceiver & receiver
• Combination meter
• Computer data lines system
• Drive circuit
• Engine coolant temperature gauge
• Fuel pump assembly (top of fuel tank)
• Fuel pump control module (sedan: right rear of trunk) (hatchback: right rear quarterpanel)
• Fuel pump relay (right relay block)
• Fuse 15a
• Fuse 7.5a
• Fuse sbf-5 30a
• Fuse sbf-7 30a
• Gb-11 (under center console)
• Gb-3 (right end of dash)
• Gb-7 (near right "c" pillar)
• Hot at all times
• I ind
• I/f
• Ind light
• Ind light shift up
• Ind reverse
• Instrument cluster system
• Joint ground connector i97
• Main fuse box (m/b) (left rear of engine compt)
• Malfunction
• Micro computer
• Nca
• Pnk
• Pressure control solenoid valve (under center rear of vehicle)
• R15
• R57
• R57 r15
• R81
• R82
• Red
• S ind
• S# ind
• Speed- ometer
• Tacho- meter
• Warning ind oil pressure

2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (3 of 5) for Subaru Impreza WRX Limited 2014

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (3 of 5) for Subaru Impreza WRX Limited 2014:

• B143
• B144
• B19
• B21
• B36
• B52
• F37
• Front oxygen (a/f) sensor (front of front catalytic converter)
• Fuse & relay box (f/b)
• Fuse 10a
• Fuse 15a
• Fuse 60a
• Ge (turbo: top left of engine) (ho-turbo: top right side of engine)
• Hot at all times
• Hot in on or start
• I102
• J/c b138 (right side of dash)
• Main fuse box (m/b) (left rear of engine compt)
• Nca
• Oil pressure switch (front of engine)
• Purge control solenoid valve 2 (on intake manifold)
• R167
• R168
• Rear oxygen sensor (rear of transmission)
• Red
• Relay holder (left rear of engine compt)
• Right secondary air combination valve (ho-turbo: rear of engine) (turo: right rear of engine)
• Secondary air combination valve relay 1
• Secondary air combination valve relay 2
• Secondary air pump (left front of engine compt)
• Secondary air pump relay
• Wastegate control solenoid valve (right rear of engine)

2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (4 of 5) for Subaru Impreza WRX Limited 2014

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (4 of 5) for Subaru Impreza WRX Limited 2014:

• (left front of engine) ignition coil 2
• (left front of engine) left exhaust oil flow control solenoid valve
• (left front of engine) left intake oil flow control solenoid valve
• (right front of engine) ignition coil 1
• (right front of engine) right exhaust oil flow control solenoid valve
• (right front of engine) right intake oil flow control solenoid valve
• (turbo: left front of engine) (ho-turbo: left rear of engine) ignition coil 4
• (turbo: right front of engine) (ho-turbo: right rear of engine) ignition coil 3
• B21
• Crankshaft position sensor (lower front of engine)
• E2 b21
• Ge (ho-turbo: top right side of engine) (turbo: top left of engine)
• Ge (turbo: top left of engine) (ho-turbo: top right side of engine)
• Knock sensor (rear of engine)
• Left exhaust camshaft position sensor (ho-turbo: left front of engine)
• Left intake camshaft position sensor (ho-turbo: left rear of engine)
• Manifold absolute pressure sensor (ho-turbo: top rear of engine) (turbo: top right rear of engine)
• Nca
• Purge control solenoid valve 1 (on intake manifold)
• Red
• Right exhaust camshaft position sensor (ho-turbo: right front of engine)
• Right intake camshaft position sensor (ho-turbo: right rear of engine)

2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (5 of 5) for Subaru Impreza WRX Limited 2014

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, with SI-Drive (5 of 5) for Subaru Impreza WRX Limited 2014:

• (ho-turbo: rear of engine)
• (left front of engine) fuel injector 2
• (left rear of engine) fuel injector 4
• (right front of engine) fuel injector 1
• (right rear of engine) fuel injector 3
• B134
• B137
• B21
• Electronic throttle control (at throttle body)
• Engine control module (right side of dash)
• Engine coolant temperature sensor (ho-turbo: top left front of engine) (turbo: top front of engine)
• Ge (ho-turbo: top right side of engine) (turbo: top left of engine)
• Ge (turbo: top left of engine) (ho-turbo: top right side of engine)
• Leak diagnosis connector 1
• Leak diagnosis connector 2
• Left secondary air combination valve (turbo: left rear of engine)
• Left tumble generator valve assembly (left rear of engine)
• Nca
• Pnk
• Power steering oil pressure switch (right front of engine)
• Red
• Right tumble generator valve assembly (ho-turbo: right rear of engine) (turbo: right front of engine)

2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (1 of 5) for Subaru Impreza WRX Limited 2014

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (1 of 5) for Subaru Impreza WRX Limited 2014:

• (left side of dash) clutch switch
• (left side of dash) data link connector
• (right side of dash) delivery (test) mode connector b75
• (right side of dash) j/c b122
• Accelerator pedal position sensor (left side of dash)
• Air conditioning system
• Anti-theft system starting/ charging system
• B128
• B135
• B136
• B364 b363
• B438
• B440
• B441
• B76
• B92
• Computer data lines system
• Computer data lines system air conditioning system
• Cooling fans system
• Cruise control system
• Elcm vacuum pump (fuel tank)
• Electronic throttle control relay (right relay block)
• Engine control module (right side of dash)
• Fuse 15a
• J/c b83 (right side of dash)
• Mass air flow & intake air temperature sensor (right side of engine compt)
• Multi j/c b440, b441 & b438
• Nca
• Neutral position switch (m/t) (left side of transmission)
• Pnk
• Pressure sensor
• Red
• Right fuse & relay box (f/b)
• Starting/charging system
• Switching valve
• Test mode sub connector

2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (2 of 5) for Subaru Impreza WRX Limited 2014

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (2 of 5) for Subaru Impreza WRX Limited 2014:

• (right relay block) a/f & oxygen sensor relay
• (right relay block) main relay
• All times
• B145
• B186
• B36
• B97
• Can transceiver & receiver
• Combination meter
• Computer data lines system
• Drive circuit
• Engine coolant temperature gauge
• Fuel pump assembly (top of fuel tank)
• Fuel pump control module (sedan: right rear of trunk) (hatchback: right rear quarterpanel)
• Fuel pump relay (right relay block)
• Fuse 15a
• Fuse 7.5a
• Fuse sbf-5 30a
• Fuse sbf-7 30a
• Gb-11 (under center console)
• Gb-3 (right end of dash)
• Gb-7 (near right "c" pillar)
• Hot at
• Hot at all times
• I/f
• Ind light
• Instrument cluster system
• Joint ground connector i97
• Main fuse box (m/b) (left rear of engine compt)
• Malfunction
• Micro computer
• Nca
• Oil pressure warning ind
• Pnk
• Power circuit
• Pressure control solenoid valve (under center rear of vehicle)
• R1 b97
• R15
• R2 b98
• R57
• R81
• R82
• Red
• Speed- ometer
• Tacho- meter

2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (3 of 5) for Subaru Impreza WRX Limited 2014

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (3 of 5) for Subaru Impreza WRX Limited 2014:

• B143
• B144
• B19
• B21
• B52
• F37
• Front oxygen (a/f) sensor (front of front catalytic converter)
• Fuse & relay box (f/b)
• Fuse 10a
• Fuse 15a
• Fuse 60a
• Ge (turbo: top left of engine) (ho-turbo: top right side of engine)
• Hot at all times
• Hot in on or start
• I1 b36
• J/c b138 (right side of dash)
• Left secondary air combination valve (turbo: left rear of engine) (ho-turbo: rear of engine)
• Main fuse box (m/b) (left rear of engine compt)
• Nca
• Oil pressure switch (front of engine)
• Purge control solenoid valve 2 (on intake manifold)
• R167 i102
• R168
• Rear oxygen sensor (rear of transmission)
• Red
• Relay holder (left rear of engine compt)
• Secondary air combination valve relay 1
• Secondary air combination valve relay 2
• Secondary air pump (left front of engine compt)
• Secondary air pump relay
• Wastegate control solenoid valve (right rear of engine)

2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (4 of 5) for Subaru Impreza WRX Limited 2014

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (4 of 5) for Subaru Impreza WRX Limited 2014:

• (left front of engine) ignition coil 2
• (left side of engine) left oil flow control solenoid valve
• (right front of engine) ignition coil 1
• (right side of engine) right oil flow control solenoid valve
• (turbo: left front of engine) (ho-turbo: left rear of engine) ignition coil 4
• (turbo: right front of engine) (ho-turbo: right rear of engine) ignition coil 3
• B21
• Crankshaft position sensor (lower front of engine)
• E2 b21
• Ge (ho-turbo: top right side of engine) (turbo: top left of engine)
• Ge (turbo: top left of engine) (ho-turbo: top right side of engine)
• Knock sensor (rear of engine)
• Leak diagnosis connector 1
• Leak diagnosis connector 2
• Leak diagnosis connector 3
• Left camshaft position sensor (left side of engine)
• Manifold absolute pressure sensor (ho-turbo: top rear of engine) (turbo: top right rear of engine)
• Nca
• Purge control solenoid valve 1 (on intake manifold)
• Red
• Right camshaft position sensor (right rear of engine)

2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (5 of 5) for Subaru Impreza WRX Limited 2014

List of elements for 2.5L Turbo, Engine Performance Wiring Diagram, without SI-Drive (5 of 5) for Subaru Impreza WRX Limited 2014:

• (left front of engine) fuel injector 2
• (left rear of engine) fuel injector 4
• (right front of engine) fuel injector 1
• (right rear of engine) fuel injector 3
• B134
• B137
• B21
• Electronic throttle control (at throttle body)
• Engine control module (right side of dash)
• Engine coolant temperature sensor (ho-turbo: top left front of engine) (turbo: top front of engine)
• Ge (ho-turbo: top right side of engine) (turbo: top left of engine)
• Ge (turbo: top left of engine) (ho-turbo: top right side of engine)
• Left tumble generator valve assembly (left rear of engine)
• Nca
• Pnk
• Power steering oil pressure switch (right front of engine)
• Red
• Right secondary air combination valve (turbo: right rear of engine) (ho-turbo: rear of engine)
• Right tumble generator valve assembly (ho-turbo: right rear of engine) (turbo: right front of engine)