Diagram sections — 27 (63 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS POWER DISTRIBUTION POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING
2.0L TURBO 2.0L Turbo, Manual A/C Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.0L Turbo, Manual A/C Wiring Diagram for Subaru Impreza WRX 2004: 42 A/c pressure switch (on left side of engine compt) Air conditioning relay Air conditioning relay holder (at left side of engine compt) Air conditioning switch B134 B135 B152 B52 B84 Blower fan motor (behind right side of dash) Blower fan motor relay (behind left side of dash) Blower fan motor resistor (behind right side of dash) Blower fan switch Combination meter Compressor (at left front of engine) Engine control module (behind right side of dash) Engine controls system Engine coolant temperature sensor & thermometer (on top left front of engine) Evaporator thermoswitch (behind right side of dash) F41 Fuse & relay box (f/b) (behind left side of dash) Fuse 1 15a Fuse 17 15a Fuse 18 15a Fuse 2 15a Fuse 20a Gb-1 (right side of engine compt) Gb-6 (under left front of center console) Hot at all times Hot in on or start I12 Illum Interior lights system Joint connector (shield & sensor ground) (behind right side of dash) Magnetic clutch Main fan motor Main fan relay-1 Main fan relay-2 Nca Sub fan motor (behind right side of radiator) Sub fan relay-1 Sub fan relay-2
2.5L 2.5L, Manual A/C Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.5L, Manual A/C Wiring Diagram for Subaru Impreza WRX 2004: 40 (behind right side of dash) joint connector (shield & sensor ground) (e/g) (on left side of engine compt) pressure switch Air conditioning relay (in main fuse box (m/b)) Air conditioning relay holder (at left side of engine compt) Air conditioning relay holder (on left side of engine compt) Air conditioning switch B134 B135 B136 B152 B52 Blower fan motor (behind right side of dash) Blower fan motor relay (behind left side of dash) Blower fan motor resistor (behind right side of dash) Blower fan switch Combination meter Compressor (at left front of engine) Engine control module (behind right side of dash) Engine controls system Engine coolant temperature sensor & thermometer (on top center of engine) Evaporator thermoswitch (behind right side of dash) F41 Fuse & relay box (f/b) (behind left side of dash) Fuse 1 15a Fuse 17 15a Fuse 18 15a Fuse 2 15a Fuse 20a Gb-1 (right side of engine compt) Gb-6 (under left front of center console) Hot at all times Hot in on or start I12 Illum Interior lights system Magnet clutch Main fan motor Main fan relay Sub fan motor (behind right side of radiator) Sub-fan relay
2.5L TURBO 2.5L Turbo, Automatic A/C Wiring Diagram (1 of 2) for Subaru Impreza WRX 2004 List of elements for 2.5L Turbo, Automatic A/C Wiring Diagram (1 of 2) for Subaru Impreza WRX 2004: 31 A/c pressure switch (on left side of engine compt) Air mix actuator (behind right side of dash) Auto a/c control module (below center of dash) B152 B271 B282 B283 B52 Blower fan relay (behind left side of dash) Blower motor (behind right side of dash) Cruise control system Defogger system F41 Fan control amplifier (behind right side of dash) Fresh/recirc actuator Fuse & relay box (f/b) (behind left side of dash) Fuse 1 15a Fuse 17 15a Fuse 18 15a Fuse 2 15a Fuse 9 15a Gb-4 (behind right side of dash) Gb-5 (behind center of dash) Gb-6 (under left front of center console) Hot at all times Hot in on or acc Hot in on or start Interior lights system Mode actuator (behind right side of dash) Red Thermometer 2.5L Turbo, Automatic A/C Wiring Diagram (2 of 2) for Subaru Impreza WRX 2004 List of elements for 2.5L Turbo, Automatic A/C Wiring Diagram (2 of 2) for Subaru Impreza WRX 2004: 31 A/c compressor (at left front of engine) Air conditioning relay Air conditioning relay holder (at left side of engine compt) Ambient sensor (behind center of grille) B135 B136 B137 Combination meter Engine control module (behind right side of dash) Engine control system Engine coolant temperature sensor & thermometer (on top left front of engine) Evaporation thermo switch (behind right side of dash) F68 Fuse 2 15a Fuse 20a Gb-1 (right side of engine compt) Hot at all times I10 I12 Joint connector (shield & sensor ground) (behind right side of dash) Magnet clutch Main fan motor Main fan relay 1 Main fan relay 2 Main fuse box (on left side of engine compt) Nca Red Sub fan motor (behind right side of radiator) Sub fan relay 1 Sub fan relay 2 Sunload sensor (at top right side of dash)
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Anti-lock Brakes Wiring Diagram for Subaru Impreza WRX 2004: 67 assembly) (at base of right "a" pillar) abs condenser (behind left side of dash) (behind right side of dash) gb-4 (on bracket, above brake pedal) stoplight switch 10a 2.0l 2.5l 2.5l turbo Abs control module (on right side of engine compt) Abs lateral ``g" sensor (2.5l turbo) (under center console) Abs relay (behind left side of dash) Abs warning light ind Abs ``g" sensor (2.5l turbo) (under rear of center console) Abs ``g" sensor (except 2.5l turbo) (under rear of center console) B158 B302 B52 B54 B55 Check connector Combination meter Connector (behind left side of dash) Data link connector (behind dash, left of steering column) Diagnosis Driver`s control center diff control unit Except 2.5l turbo F38 F41 Fl in Fl out Fr in Fr out Fuse & relay box (f/b) (behind left side of dash) Fuse 13 10a Fuse 16 20a Fuse 18 15a Fuse 8 20a Gb-2 (near the left headlight) Gb-5 (behind center of dash) Hot at all times Hot in run or start I10 I11 Joint connector (lateral g sensor) Left front abs sensor (behind left front wheel hub/spindle Left rear abs sensor (behind left rear wheel hub/spindle Main fuse box (m/b) (on left side of engine compartment) Motor relay Nca Parking brake warn light ind (2.5l turbo) Parking brake warning light ind (except 2.5l turbo) Pump motor Red Relay holder Right front abs sensor (behind right front wheel hub/spindle Right rear abs sensor (behind right rear wheel hub/spindle Rl in Rl out Rr in Rr out Sbf holder (on left side of engine compartment) Sbf-4 fuse 50a Sbf-8 fuse 30a Shield joint connector (at right front corner of engine compt) Transmission control module (behind left side of dash) Valve relay
ANTI-THEFT Power Door Locks Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Power Door Locks Wiring Diagram for Subaru Impreza WRX 2004: 55 (behind left side of dash) (behind left side of dash) interrupt relay (wagon: under right taillight assembly) (sedan: near license plate light) gb-8 Acc B152 B280 B281 B52 Combination meter Diode (wagon) Driver's side door lock switch Driver's side front door lock actuator (at rear of left front door) Exterior lights system F68 Fuse & relay box (f/b) (behind left side of dash) Fuse 11 15a Fuse 18 15a Fuse 2 15a Fuse 3 15a Gb-3 Gb-7 (under right front seat) Horns system Hot at all times Hot in on or start I10 I11 Ignition switch Ind door Ind security Integrated module Interior lights system Keyless buzzer (at right front of engine compt) Keyless entry control module (behind left end of dash) Left front door switch (at rear of left front door) Left rear door lock actuator (at rear of left rear door) Left rear door switch (at rear of left rear door) Lock Main fuse box (m/b) (on left side of engine compt) On off Passenger's side door lock switch Passenger's side front door lock actuator (at rear of right front door) Pnk Rear gate latch switch (wagon) (at bottom center of rear gate) Rear gate lock actuator (wagon) (at bottom center of rear gate) Red Right front door switch (at rear of right front door) Right rear door lock actuator (at rear of right rear door) Right rear door switch (forward of right rear wheelwell) Security control module (behind right side of dash) Security horn (at right rear corner of engine compt) Security horn relay (behind left side of dash) Start Starting/ charging system Trunk room light switch (sedan) (at rear center of trunk) Warning system
BODY CONTROL MODULES Body Control Modules Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Body Control Modules Wiring Diagram for Subaru Impreza WRX 2004: 24 B152 B271 B280 B281 B52 Door locks system F40 F68 Fuse & relay box (f/b) (behind left side dash) Fuse 11 15a Fuse 2 15a Fuse 3 15a Fuse 4 20a Gb-5 (behind center of dash) Hot at all times Hot in acc or on Hot in on or start Integrated module (behind left side of dash) Interior lights system Main fuse box (m/b) (on left side of engine compt) Red Shift interlock system Shift interlock system defogger system Warning system
COMPUTER DATA LINES
2.0L TURBO 2.0L Turbo, Computer Data Lines Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.0L Turbo, Computer Data Lines Wiring Diagram for Subaru Impreza WRX 2004: 40 (behind left side of dash) Ab3 Abs control module (on right side of engine compartment) Air bag control module (under front of center console) Air bag ind B125 B126 B134 B136 B137 B52 B56 B75 B76 Check connector (behind left side of dash) Combination meter Cruise control module (behind left side of dash) Data link connector (behind dash, left of steering column) Diagnosis connector Diagnosis terminal Engine control module (behind right side of dash) F37 Fuel pump assembly (on top of fuel tank) Fuse & relay box (f/b) (behind left side of dash) Fuse 18 15a Gb-5 (behind center of dash) Ge-1 (top right side of engine) Hot at all times Hot in on or start I10 Line end check connector (under left side of dash) Line end connector M/t Main fuse box (m/b) (on left side of engine compartment) Neutral position switch (m/t) (on left side of transmission) Pvc diagnosis connector Sbf-5 fuse 30a Test mode connector Transmission control module (a/t) (behind left side of dash) Vehicle speed sensor (m/t) (on right side of transmission case)
2.5L 2.5L, Computer Data Lines Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.5L, Computer Data Lines Wiring Diagram for Subaru Impreza WRX 2004: 42 (behind left side of dash) (top left side of engine) Ab3 Abs control module (on right side of engine compartment) Air bag control module (under front of center console) Air bag ind B125 B126 B134 B135 B136 B137 B52 B54 B55 B75 B76 Check connector (behind left side of dash) Combination meter Cruise control module (behind left side of dash) Data link connector (behind dash, left of steering column) Diagnosis connector Diagnosis terminal Engine control module (behind right side of dash) F37 Fuel pump assembly (on top of fuel tank) Fuse & relay box (f/b) (behind left side of dash) Fuse 18 15a Gb-5 (behind center of dash) Ge-1 Hot at all times Hot in on or start I10 Line end check connector (under left side of dash) Line end connector M/t Main fuse box (m/b) (on left side of engine compartment) Neutral position switch (m/t) (on left side of transmission) Sbf-5 fuse 30a Test mode connector Transmission control module (a/t) (behind left side of dash) Vehicle speed sensor (m/t) (on right side of transmission case)
2.5L TURBO 2.5L Turbo, Computer Data Lines Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.5L Turbo, Computer Data Lines Wiring Diagram for Subaru Impreza WRX 2004: 39 (top left side of engine) Ab3 Abs control module (on right side of engine compartment) Air bag control module (under front of center console) Air bag ind B125 B126 B134 B137 B52 B56 B75 B76 Check connector (behind left side of dash) Combination meter Data link connector (behind dash, left of steering column) Diagnosis connector (behind left side of dash) Diagnosis terminal Driver's control center differential control unit Engine control module (behind right side of dash) F37 Fuel pump assembly (on top of fuel tank) Fuse & relay box (f/b) (behind left side of dash) Fuse 18 15a Gb-5 (behind center of dash) Ge-1 Hot at all times Hot in on or start I10 Line end check connector (under left side of dash) Line end connector Main fuse box (m/b) (on left side of engine compartment) Neutral position switch (m/t) (on left side of transmission) Pvc diagnosis connector (at right rear of engine) Sbf-5 fuse 30a Shield & sensor ground joint connector (behind right side of dash) Test mode connector Transmission control module (a/t) (behind left side of dash) Vehicle speed sensor (m/t) (on right side of transmission case)
COOLING FAN
2.0L TURBO 2.0L Turbo, Cooling Fan Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.0L Turbo, Cooling Fan Wiring Diagram for Subaru Impreza WRX 2004: 28 (behind right side of radiator) 2.0l turbo 2.5l turbo Air conditioning relay holder (on left side of engine compartment) B135 B136 B84 Combination meter Engine control module (behind right side of dash) Engine controls system Engine coolant temperature sensor & thermometer (on top left front of engine) F41 Fuse & relay box (f/b) (behind left side of dash) Fuse 17 15a Fuse 18 15a Fuse 20a Gb-1 (right side of engine compartment) Hot at all times Hot in on or start I12 Joint connector (shield & sensor ground) (behind right side of dash) Main fan relay 1 Main fan relay 2 Nca Radiator main fan motor (behind left side of radiator) Sub fan motor Sub-fan relay 1 Sub-fan relay 2
2.5L 2.5L, Cooling Fan Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.5L, Cooling Fan Wiring Diagram for Subaru Impreza WRX 2004: 22 (behind right side of radiator) Air conditioning relay holder (on left side of engine compt) B134 B135 Combination meter Engine control module (behind right side of dash) Engine controls system Engine coolant temperature sensor & thermometer (on top left front of engine) F41 Fuse & relay box (f/b) (behind left side of dash) Fuse 17 15a Fuse 18 15a Fuse 20a Gb-1 (right side of engine compartment) Hot at all times Hot in on or start I12 Joint connector (shield & sensor ground) (behind right side of dash) Main fan motor (behind left side of radiator) Main fan relay Sub fan motor Sub-fan relay
2.5L TURBO 2.5L Turbo, Cooling Fan Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.5L Turbo, Cooling Fan Wiring Diagram for Subaru Impreza WRX 2004: 28 (behind right side of radiator) 2.0l turbo 2.5l turbo Air conditioning relay holder (on left side of engine compartment) B135 B136 B84 Combination meter Engine control module (behind right side of dash) Engine controls system Engine coolant temperature sensor & thermometer (on top left front of engine) F41 Fuse & relay box (f/b) (behind left side of dash) Fuse 17 15a Fuse 18 15a Fuse 20a Gb-1 (right side of engine compartment) Hot at all times Hot in on or start I12 Joint connector (shield & sensor ground) (behind right side of dash) Main fan relay 1 Main fan relay 2 Nca Radiator main fan motor (behind left side of radiator) Sub fan motor Sub-fan relay 1 Sub-fan relay 2
CRUISE CONTROL
2.0L TURBO 2.0L Turbo, Cruise Control Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.0L Turbo, Cruise Control Wiring Diagram for Subaru Impreza WRX 2004: 51 (a/t) A/t Anti-theft system B158 B52 B54 B55 B56 Cancel Check connector (behind left side of dash) Clutch switch (on bracket, above clutch pedal) Combination meter Cruise control Cruise control actuator (at right side of engine compt) Cruise control main switch Cruise control module (behind left side of dash) Cruise indicator light Data link connector (behind dash, left of steering column) Dimmer circuit Fuse & relay box (f/b) (behind left side of dash) Fuse 13 10a Fuse 16 20a Fuse 18 15a Gb-4 (behind right side of dash) Ge-1 (2.0l: top right side of engine) (2.5l turbo: top left side of engine) Horns system Hot at all times Hot in on or start I10 I11 Illum Indicator set Inhibitor switch (a/t) Interior lights system Interrupt relay (behind left side of dash) Light M/t Off P/n Pnk Resume Set Short connector Starting/ charging system Stoplight & brake switch (on bracket, above brake pedal) Sub switch Transmission control module (a/t) (behind left side of dash) Turbo non-turbo Vehicle speed sensor (m/t) (on right side of transmission case) W/ anti-theft system W/o anti-theft system
2.5L 2.5L, Cruise Control Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.5L, Cruise Control Wiring Diagram for Subaru Impreza WRX 2004: 51 (a/t) A/t Anti-theft system B158 B52 B54 B55 B56 Cancel Check connector (behind left side of dash) Clutch switch (on bracket, above clutch pedal) Combination meter Cruise control Cruise control actuator (at right side of engine compt) Cruise control main switch Cruise control module (behind left side of dash) Cruise indicator light Data link connector (behind dash, left of steering column) Dimmer circuit Fuse & relay box (f/b) (behind left side of dash) Fuse 13 10a Fuse 16 20a Fuse 18 15a Gb-4 (behind right side of dash) Ge-1 (2.0l: top right side of engine) (2.5l turbo: top left side of engine) Horns system Hot at all times Hot in on or start I10 I11 Illum Indicator set Inhibitor switch (a/t) Interior lights system Interrupt relay (behind left side of dash) Light M/t Off P/n Pnk Resume Set Short connector Starting/ charging system Stoplight & brake switch (on bracket, above brake pedal) Sub switch Transmission control module (a/t) (behind left side of dash) Turbo non-turbo Vehicle speed sensor (m/t) (on right side of transmission case) W/ anti-theft system W/o anti-theft system
2.5L TURBO 2.5L Turbo, Cruise Control Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.5L Turbo, Cruise Control Wiring Diagram for Subaru Impreza WRX 2004: 33 B134 B135 B136 B137 B158 B52 Clutch switch (m/t) (on bracket, above clutch pedal) Combination meter Cruise control switch Cruise indicator light Electric control throttle (at center rear of engine) Electric control throttle relay (behind right side of dash) Engine control module (behind right side of dash) Engine controls system F37 Fuse & relay box (f/b) (behind left side of dash) Fuse 13 10a Fuse 16 20a Fuse 18 15a Fuse 6 15a Ge-1 (top left side of engine) Horn relay Hot at all times Hot in on or start I10 I11 Main fuse box (f/b) (on left side of engine compt) Main relay (behind right side of dash) Nca Sbf-5 30a Set indicator light Stoplight & brake switch (on bracket, above brake pedal) Vehicle speed sensor (on right side of transmission case)
DEFOGGERS Rear Defogger Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Rear Defogger Wiring Diagram for Subaru Impreza WRX 2004: 47 2.0l turbo 2.5l non-turbo 2.5l turbo Acc Auto a/c control module (if equipped) (below center of dash) B134 B137 B152 B158 B271 B280 B281 B282 Engine control module (behind right side of dash) F40 F68 Fuse & relay box (f/b) (behind left side of dash) Fuse 15a Fuse 20a Gb-5 (behind center of dash) Gb-6 (under left front of center console) Gb-8 (near license plate light) Gb-8 (under right tailgate assembly) Hot at all times Hot in on or start Ignition switch Integrated module (behind left side of dash) Interior lights system Left rearview mirror Lock Main fuse box (m/b) (on left side of engine compt) Mirror heater Mirror heater relay (behind left side of dash, in relay block) Nca On off Rear defogger Rear defogger (at lower right corner of rear gate) Rear defogger (under right side of rear parcel shelf) Rear defogger relay Rear defogger switch Red Right rearview mirror Sedan Start W/ choke coil W/o choke coil Wagon Wiper Deicer Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Wiper Deicer Wiring Diagram for Subaru Impreza WRX 2004: 16 (behind right end of dash) wiper deicer relay (behind right end of dash) wiper deicer timer B158 B52 Fuse & relay box (f/b) (behind left side of dash) Fuse 18 15a Fuse 19 20a Gb-3 Gb-4 (behind right side of dash) Hot at all times Hot in on or start Interior lights system Nca Off Wiper deicer (at top left of dash) Wiper deicer switch
ENGINE PERFORMANCE
2.0L TURBO 2.0L Turbo, Engine Performance Wiring Diagram (1 of 4) for Subaru Impreza WRX 2004 List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (1 of 4) for Subaru Impreza WRX 2004: 35 (behind left side of dash) diagnosis connector (behind right side of dash) gb-4 (behind right side of dash) main relay (top right side of engine) ge-1 A/t Acc Air conditioning system B134 B135 B136 Camshaft position sensor (on left front of engine) Crankshaft position sensor (on lower front of engine) Defogger system Engine control module (behind right side of dash) Ge-1 (top right side of engine) Ge-2 (top left side of engine) Hot at all times Ignition switch Interior lights system Knock sensor (at center rear of engine) Left tgv (at top left front of engine) Lock M/t Mass airflow sensor (at right side of engine compt, in air intake duct) Nca Neutral position switch (m/t) (on left side of transmission) Off Power steering oil pressure switch (at right front of engine) Red Right tgv (at top right of engine) Shielded Shielded & sensor ground joint connector (behind right side of dash) Start Starting/ charging system Starting/charging system 2.0L Turbo, Engine Performance Wiring Diagram (2 of 4) for Subaru Impreza WRX 2004 List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (2 of 4) for Subaru Impreza WRX 2004: 28 (behind left side of dash) check connector (top right side of engine) ge-1 A/t B125 B152 B52 B54 B55 B56 Engine coolant temperature sensor & thermometer (on top center of engine) Exhaust gas temperature sensor (in right exhaust system, near front oxygen sensor) F37 Fuse & relay box (behind left side of dash) Fuse 15a Fuse 30a Hot at all times Hot in on or start Left tgv angle sensor Line end connector M/t Main fuse box (on left side of engine compt) Nca Pressure sensor (at top rear of engine) Red Right tgv angle sensor Throttle position sensor (on throttle body assembly) Transmission control module (behind left side of dash) Vehicle speed sensor (m/t) (on right side of transmission case) 2.0L Turbo, Engine Performance Wiring Diagram (3 of 4) for Subaru Impreza WRX 2004 List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (3 of 4) for Subaru Impreza WRX 2004: 37 (behind dash, left of steering column) data link connector (top right side of engine) (top right side of engine) ge-1 (under left side of dash) line end check connector B158 Combination meter Cpu Drain valve (under right rear of vehicle) Fuel level sensor Fuel pump Fuel pump assembly (on top of fuel tank) Fuel pump controller Fuel pump relay (behind right side of dash) Fuel sub level sensor (on top of fuel tank) Fuel tank pressure sensor (on top center of fuel tank) Fuel temperature sensor Fuse & relay box (behind left side of dash) Fuse 10a Gb-4 (behind right side of dash) Gb-7 (under right front seat) Ge-1 Hot in on or start I/f I10 I11 I12 Internal pressure solenoid valve Mal- function indicator light Nca Oil pres- sure warning light Oil pressure switch (on front of engine) Pressure control solenoid valve (under center rear of vehicle) R58 Red Speedometer Tachometer Temp gauge 2.0L Turbo, Engine Performance Wiring Diagram (4 of 4) for Subaru Impreza WRX 2004 List of elements for 2.0L Turbo, Engine Performance Wiring Diagram (4 of 4) for Subaru Impreza WRX 2004: 23 (at left rear of engine) fuel injectors (on top front of engine) (top right side of engine) ge-1 Air conditioning system B137 Cooling fan system E84 Engine control module (behind right side of dash) Front oxygen (a/f) sensor (on front of catalytic converter) Ge-1 (top right side of engine) Idle air control solenoid valve (on front of engine) Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Nca Pcv diagnosis connector Pnk Purge control solenoid valve (on intake manifold) Rear oxygen sensor Red Shielded Wastegate solenoid (at right side of engine compt)
2.5L 2.5L, Engine Performance Wiring Diagram (1 of 3) for Subaru Impreza WRX 2004 List of elements for 2.5L, Engine Performance Wiring Diagram (1 of 3) for Subaru Impreza WRX 2004: 31 (behind left side of dash) interrupt relay (behind right side of dash) main relay A/t Acc Air conditioning system B135 B136 Camshaft position sensor (on left front of engine) Crankshaft position sensor (on lower front of engine) Engine control module (behind right side of dash) Gb-4 (behind right side of dash) Ge-1 (top right side of engine) Hot at all times Ignition switch Inhibitor switch Knock sensor (at center rear of engine) Lock M/t Nca Neutral position switch (on left side of transmission) Off Power steering oil pressure switch (at right front of engine) Red Shielded Short connector Start Starter interlock relay (behind left side of dash, in relay block) Starting/ charging & headlights systems Starting/ charging system W/ anti-theft W/o anti-theft 2.5L, Engine Performance Wiring Diagram (2 of 3) for Subaru Impreza WRX 2004 List of elements for 2.5L, Engine Performance Wiring Diagram (2 of 3) for Subaru Impreza WRX 2004: 35 (behind dash, left of steering column) data link connector (behind left side of dash) check connector (behind right side of dash) shielded & sensor ground joint connector (top center of fuel tank) fuel tank pressure sensor (top right side of engine) ge-1 (under right front seat) gb-7 A/t B152 B158 B52 Engine coolant temperature sensor & thermometer (on top center of engine) Front oxygen sensor (a/f) (on front of catalytic converter) Fuel gauge sub module Fuel level sensor Fuel pump assembly (on top of fuel tank) Fuel pump relay (behind right side of dash) Fuel sub level sensor Fuel temp sensor Fuse & relay box (behind left side of dash) Fuse 10a Fuse 15a Gb-5 (behind center of dash) Ge-1 (top right side of engine) Hot in on or start Instru- ment cluster system Intake air temp- erature sensor (at right rear of engine) Line end check connector (under left side of dash) M/t Nca Pressure sensor (at top rear of engine) Rear oxygen sensor Red Shielded Throttle position sensor (on throttle body assembly) Vehicle speed sensor (m/t) (on right side of transmission case) 2.5L, Engine Performance Wiring Diagram (3 of 3) for Subaru Impreza WRX 2004 List of elements for 2.5L, Engine Performance Wiring Diagram (3 of 3) for Subaru Impreza WRX 2004: 38 (at right front of engine) fuel injectors (on intake manifold) purge control solenoid valve (on top front of engine) air assist injector solenoid valve (under right rear of vehicle) drain valve Air conditioning system B125 B134 B137 B54 B55 Combination meter Cooling fans system Custom cpu Defogger system Diagnosis connector (behind left side of dash) Engine control module (behind right side of dash) F37 Fuse sbf-5 30a Ge-1 (top left side of engine) Hot at all times I/f I11 I12 Idle air control solenoid valve (on top rear of engine) Ignition coil & ignitor (on top front of engine) Interior lights system Internal pressure solenoid valve Line end connector Main fuse box (on left side of engine compt) Mal- function indicator lamp Nca Pnk Pressure solenoid valve Red Shielded Speedo- meter circuit Tacho- meter Transmission control module (behind left side of dash)
2.5L TURBO 2.5L Turbo, Engine Performance Wiring Diagram (1 of 4) for Subaru Impreza WRX 2004 List of elements for 2.5L Turbo, Engine Performance Wiring Diagram (1 of 4) for Subaru Impreza WRX 2004: 31 (behind left side of dash) diagnosis connector (behind right side of dash) electric throttle relay (behind right side of dash) main relay Air conditioning system B135 B137 B152 B271 B52 Cooling fans system Crankshaft position sensor (on lower front of engine) Defogger system Engine control module (behind right side of dash) Fuse & relay box (f/b) (behind left side of dash) Fuse 15a Fuse 20a Ge-1 (top left side of engine) Ge-2 (top right of engine) Hot in acc or on Hot in on or start Ignition coil 1 (at right front of engine) Ignition coil 2 (at left front of engine) Ignition coil 3 (at right rear of engine) Ignition coil 4 (at left rear of engine) Interior lights system Nca Pcv diagnosis connecter Power steering oil pressure switch (at left front of engine) Red Shield & sensor ground joint connector (behind right side of dash) Starting/charging system 2.5L Turbo, Engine Performance Wiring Diagram (2 of 4) for Subaru Impreza WRX 2004 List of elements for 2.5L Turbo, Engine Performance Wiring Diagram (2 of 4) for Subaru Impreza WRX 2004: 29 (behind dash, left of steering column) data link connector (behind left side of dash) check connector (on right side of transmission case) B125 B75 B76 Diagnosis terminal Electric throttle (at center rear of engine) Engine coolant temperature sensor & thermometer (on top center F37 Gb-3 Gb-5 (behind center of dash) Ge-2 (top right of engine) Hot at all times Intercooler water spray switch Intercooler water spray timer (behind right side of dash) Interior lights system Left tgv angle sensor Line end connector b126 Main fuse box (m/b) (on left side of engine compt) Nca Neutral position switch Of engine) Pressure sensor Red Right tgv angle sensor Sbf 5 fuse 30a Test mode connector Vehicle speed sensor 2.5L Turbo, Engine Performance Wiring Diagram (3 of 4) for Subaru Impreza WRX 2004 List of elements for 2.5L Turbo, Engine Performance Wiring Diagram (3 of 4) for Subaru Impreza WRX 2004: 37 (at left side of engine) left active valve control solenoid (at right side of engine) right active valve control solenoid B158 Combination meter Drain valve (under right rear of vehicle) Driver's control center differential control unit Fuel level sensor Fuel pump Fuel pump assembly (on top of fuel tank) Fuel pump controller Fuel pump relay (behind right side of dash) Fuel sub level sensor (on top of fuel tank) Fuel tank pressure sensor (on fuel tank) Fuel temperature sensor Fuse & relay box (f/b) (behind left side of dash) Fuse 10a Gb-4 (behind right side of dash) Gb-7 (under right front seat) Gb-8 (sedan: near license plate light) (coupe: under right taillight assembly) Hot in on or start I/f I10 I11 I12 Intercooler water spray motor & level warning switch Intercooler water spray tank level warning light Internal pressure solenoid valve Mal- function indicator light Micro computer Nca Oil pres- sure warning light Oil pressure switch (on front of engine) Pressure solenoid valve Red Speedometer Tachometer Temp gauge 2.5L Turbo, Engine Performance Wiring Diagram (4 of 4) for Subaru Impreza WRX 2004 List of elements for 2.5L Turbo, Engine Performance Wiring Diagram (4 of 4) for Subaru Impreza WRX 2004: 26 (at left front of engine) fuel injector 2 (at left rear of engine) fuel injector 4 (at right front of engine) fuel injector 1 (at right rear of engine) fuel injector 3 (behind left side of dash) accelerator position sensor (behind right side of dash) shield & sensor ground joint connector (on rear of engine) knock sensor (top right of engine) ge-2 B134 B136 Cruise control system Engine control module (behind right side of dash) Front oxygen (a/f) sensor (on front of catalytic converter) Ge-1 (top left side of engine) Left active valve control angle sensor Left tgv (at left rear of engine) Mass air flow sensor Nca Pnk Purge control solenoid valve (on intake manifold) Rear oxygen sensor Red Right active valve control angle sensor Right tgv (at right rear of engine) Starting/charging system Waste gate solenoid
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Back-up Lamps Wiring Diagram for Subaru Impreza WRX 2004: 21 (2.0l turbo) (2.5l turbo) (2.5l) A/t B282 B52 Back-up Back-up light Back-up light switch (on left side of transmission) Fuse & relay box (f/b) (behind left side of dash) Fuse 18 15a Gb-8 (sedan: near license plate light) (wagon: under right taillight assembly) Hot in on or start Inhibitor switch Integrated module (behind left side of dash) Left rear combination light Light M/t Right rear combination light Sedan Wagon Exterior Lamps Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Exterior Lamps Wiring Diagram for Subaru Impreza WRX 2004: 73 (at right rear corner of vehicle) (wagon) trailer connector (not used) (sedan rear spoiler) (wagon) (sedan) (under right front seat) gb-7 (wagon) (wagon) (sedan) (wagon: under right taillight assembly) (sedan: near license plate light) gb-8 2.5l turbo B152 B158 B176 B51 B52 B69 B71 Combin- ation switch Combination meter Combination switch Except 2.5l turbo F36 F37 F40 F41 F68 Fuse & relay box (f/b) (behind left side of dash) Fuse 16 20a Fuse 2 15a Fuse 5 10a Fuse 5 15a Fuse 6 15a Fuse 7 20a Gb-1 (right side of engine compt) Gb-3 Gb-5 (behind center of dash) Hazard switch Head High mounted stoplight (sedan w/o rear spoiler) High mounted stoplight (wagon & sedan w/ rear spoiler) Hot at all times Hot in on or start I11 I12 Ignition relay (behind left side of dash, in relay block) Interior lights system Keyless entry control module (behind left end of dash) Left Left front clearance light Left front combination light Left front turn signal light Left rear combination lamp License plate light Lighting switch Main fuse box (m/b) (on left side of engine compt) Nca Off Park Parking switch (top of steering column) Power windows system Right Right front clearance light Right front combination light Right front turn signal light Right rear combination lamp Sbf-2 fuse 50a Stop- light Stoplight switch Tail & illumin- ation relay Tail- light Turn & hazard module (behind dash, right of steering column) Turn light Turn signal ind light Turn signal switch
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 3) for Subaru Impreza WRX 2004 List of elements for Ground Distribution Wiring Diagram (1 of 3) for Subaru Impreza WRX 2004: 78 A/t select lever Abs condenser Abs control module Abs g sensor (except (sti model) Abs lateral g sensor (sti model) Abs relay Air mix actuator Auto a/c control module Auto/ manual switch B280 B283 B70 B71 Brake fluid level warning switch Check connector Clock Clutch switch (m/t) Combination meter Combination switch Cruise control actuator Cruise control module Daytime running light control module Daytime running light relay Daytime running light resistor Driver side front door switch Driver side rearview mirror heater Driver's control center differential control unit Forward switch Front wiper motor Fuel pump relay (w/ turbo engine) Gb-1 (right side of engine compt) Gb-2 (near the left headlight) Gb-3 Gb-4 (behind right side of dash) Gb-5 (behind center of dash) Glove box illum- ination light Headlight leveler switch I10 I11 Ignition switch Inhibitor switch (a/t) Integrated module Inter coolar water spary timer Joint connector Key lock solenoid (a/t) Keyless entry control module Left front fog light Left front turn signal/ clearance light Left headlight leveler Left lo-beam headlight (hid model) Lighting Main fan motor (2.5l) Main fan motor (w/ turbo engine) Main relay Mirror heater relay Mode actuator Nca Passenger side front door switch Power window main switch Power window relay Rear 12v accessory relay Rear defogger switch Remote controlled rearview mirror switch Right front fog light Right front turn signal/ clearance light Right headlight leveler Right lo-beam headlight (hid model) Security control module Security short connector Shield joint connector Sub fan motor (2.5l) Sub fan motor (w/ turbo engine) To compass mirror (diagram 2 of 3) Turn & hazard module Wiper Wiper deicer Wiper deicer switch Wiper deicer timer Ground Distribution Wiring Diagram (2 of 3) for Subaru Impreza WRX 2004 List of elements for Ground Distribution Wiring Diagram (2 of 3) for Subaru Impreza WRX 2004: 53 (sedan) (sedan, (wagon) (wagon) trailer connector Air bag control module B54 B55 B56 Blower fan switch Compass mirror Earth bracket Fan control amplifier From ground gb-4 (diagram 1 of 3) Fuel pump assembly (2.5l) Fuel pump controller (w/ turbo engine) Gb-4 (behind right side of dash) Gb-5 (behind center of dash) Gb-6 (under left front of center console) Gb-7 (under right front seat) Gb-8 (sedan: near license plate light) (wagon: under right taillight assembly) Gr (under right front of center console) Hi-mounted stop light High- mounted stop light Inter cooler water spary motor & level warning switch Left rear combination combination light Left rear door switch Left seat heater Left seat heater switch License plate light Passenger side door lock switch Passenger side rearview mirror heater R58 Radio Rear defogger (sedan) Rear defogger (wagon, Rear differential oil temperature sensor Rear gate latch switch (wagon) Rear wiper intermittent module (wagon) Rear wiper motor (wagon) Right rear combination light Right rear door switch Right seat heater Right seat heater switch Room light Seat belt switch Spot light Transmission control module (2.5l) Transmission control module (w/ turbo engine) Transmission ground Trunk room light switch (sedan) W/ choke coil model) W/ rear spoiler) W/o choke coil model) Ground Distribution Wiring Diagram (3 of 3) for Subaru Impreza WRX 2004 List of elements for Ground Distribution Wiring Diagram (3 of 3) for Subaru Impreza WRX 2004: 31 B134 B135 B136 B137 B84 Camshaft position sensor shield Combination meter Crankshaft position sensor shield Data link connector Diagnosis terminal Engine control module (2.5l turbo) Engine control module (2.5l) Engine control module (w/ turbo engine) Fuel level sensor Ge-1 (2.5l turbo) (top left side of engine) Ge-1 (2.5l) (top left side of engine) Ge-1 (w/ turbo engine) (top left side of engine) I12 Idle air control solenoid valve Ignition coil & ignitor Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Knock sensor shield M/t Neutral position switch (m/t) Pcv diagnosis connector Shield and sensor ground joint connector Test mode connector Vehicle speed sensor (m/t)
HEADLIGHTS Headlights Wiring Diagram, with High Intensity Discharge for Subaru Impreza WRX 2004 List of elements for Headlights Wiring Diagram, with High Intensity Discharge for Subaru Impreza WRX 2004: 42 B152 B52 Combination meter Combination switch Dimmer & passing switch F37 F39 F40 Front foglight relay Front foglight switch Fuse & relay box (f/b) (behind left side of dash) Fuse 12 10a Fuse 13 10a Fuse 7 15a Fuse 8 15a Fuse 9 15a Gb-1 (right side of engine compt) Gb-3 Head Hid relay (behind left side of dash, in relay block) High beam ind light Hot at all times Hot in on or start Hot w/ tail & illumination relay energized I10 Interior lights system Joint connector Left front fog light Left headlight (high) Left headlight (low) Left headlight relay Lighting switch Main fuse box (m/b) (on left side of engine compt) Nca Off Park Pass Red Right front fog light Right headlight (high) Right headlight (low) Right headlight relay Headlights Wiring Diagram, without High Intensity Discharge for Subaru Impreza WRX 2004 List of elements for Headlights Wiring Diagram, without High Intensity Discharge for Subaru Impreza WRX 2004: 54 (a/t) B152 B52 Combination meter Combination switch Daytime running light control module (behind right side of dash) Daytime running light diode (behind right side of dash) Daytime running light relay (behind right kick panel) Daytime running light resistor (turbo: at right rear of engine compartment) (non-turbo: at right side of engine compt) Dimmer & passing switch F37 F39 F40 Front foglight diode (behind center of dash) Front foglight relay (behind left side of dash, in relay block) Front foglight switch Fuse & relay box (f/b) (behind left side of dash) Fuse 13 10a Fuse 18 15a Fuse 7 15a Fuse 8 15a Fuse 9 15a Gb-1 (right side of engine compartment) Gb-3 Gb-4 (behind right side of dash) Generator Head Hi beam ind light (2.5l turbo) Hi beam ind light (except 2.5l turbo) High beam relay (behind right kick panel) Hot at all times Hot in on or start I10 Inhibitor switch Instrument cluster system Interior lights system Joint connector Left front foglight Left headlight (high beam) Left headlight (low beam) Left headlight relay Lighting switch Main fuse box (m/b) (on left side of engine compt) Nca Off Park Parking brake switch (on base of park brake lever) Pass Red Right front foglight Right headlight (high beam) Right headlight (low beam) Right headlight relay Starting/charging system
HORN Horn Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Horn Wiring Diagram for Subaru Impreza WRX 2004: 11 F37 F39 Fuse 6 15a Horn (at left front corner of engine compt) Horn (at left front of engine compt) Horn relay Horn switch Hot at all times Keyless entry control module (behind left end of dash) Main fuse box (m/b) (on left side of engine compt) Security horn relay (behind left side of dash)
INSTRUMENT CLUSTER
2.0L TURBO
2.5L
2.5L TURBO
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Courtesy Lamps Wiring Diagram for Subaru Impreza WRX 2004: 36 B280 B281 B52 Combination meter Diode (wagon) Door Door warning light F40 F68 Fuse & relay box (f/b) (behind left side of dash) Fuse 2 15a Gb-3 Gb-4 (behind right side of dash) Gb-6 (under left front of center console) Gb-7 (under right front seat) Gb-8 (near license plate light) Gb-8 (under right taillight assembly) Hot at all times I10 I11 Integrated module (behind left side of dash) Key illumination light Left front door switch (at rear of left front door) Left rear door switch (at rear of left rear door) Luggage room light (wagon) Main fuse box (m/b) (on left side of engine compartment) Off Rear gate latch switch (wagon) (at bottom center of rear gate) Right front door switch (at rear of right front door) Right rear door switch (forward of right rear wheelwell) Room light Sedan Spot light Trunk room light (sedan) Trunk room light switch (sedan) (at rear center of trunk) Wagon
2.0L TURBO 2.0L Turbo, Instrument Illumination Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.0L Turbo, Instrument Illumination Wiring Diagram for Subaru Impreza WRX 2004: 44 A/t select lever illumination light B134 B137 B152 B158 B280 B281 B52 Clock Combination meter Combination switch (light switch) Compact disc player illumination light Cruise control main switch illumination light Dimmer circuit Driver Engine control module (behind right side of dash) F40 F68 Front fog- light switch illumination light Fuse & relay box (f/b) (behind left side of dash) Fuse 12 10a Fuse 13 10a Fuse 7 20a Gb-3 Gb-4 (behind right side of dash) Glove box illumination light Hazard switch illumination light Head Hot at all times Hot in on or start I11 Illumination lights Integrated module (behind left side of dash) Main fuse box (m/b) (on left side of engine compartment) Mode control panel illumination light Nca Non-turbo engine module Odo/trip lcd backlight Off Out temp lcd backlight Park Radio illumination light Tail & illumination relay Turbo engine module
2.5L 2.5L, Instrument Illumination Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.5L, Instrument Illumination Wiring Diagram for Subaru Impreza WRX 2004: 44 A/t select lever illumination light B134 B137 B152 B158 B280 B281 B52 Clock Combination meter Combination switch (light switch) Compact disc player illumination light Cruise control main switch illumination light Dimmer circuit Driver Engine control module (behind right side of dash) F40 F68 Front fog- light switch illumination light Fuse & relay box (f/b) (behind left side of dash) Fuse 12 10a Fuse 13 10a Fuse 7 20a Gb-3 Gb-4 (behind right side of dash) Glove box illumination light Hazard switch illumination light Head Hot at all times Hot in on or start I11 Illumination lights Integrated module (behind left side of dash) Main fuse box (m/b) (on left side of engine compartment) Mode control panel illumination light Nca Non-turbo engine module Odo/trip lcd backlight Off Out temp lcd backlight Park Radio illumination light Tail & illumination relay Turbo engine module
2.5L TURBO 2.5L Turbo, Instrument Illumination Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.5L Turbo, Instrument Illumination Wiring Diagram for Subaru Impreza WRX 2004: 48 (behind center of dash) gb-5 (behind right side of dash) gb-4 Auto a/c control module (below center of b283 dash) B137 B152 B158 B283 B52 B71 Circuit dimmer Clearance light ind light Clock Combination meter Combination switch Compact disc player illumination light Dimmer circuit Driver Driver's control center differential auto/manual switch Engine control module (behind right side of dash) F40 F68 Front fog light switch illumination light Fuse & relay box (f/b) (behind left side of dash) Fuse 12 10a Fuse 13 10a Fuse 7 20a Glove box illumination light Hazard switch illumination light Head Headlight leveler switch Hot at all times Hot in on or start I/f I10 I11 Intercooler water spray switch Letter plate illum light ind Lighting switch Liquid crystal display back light ind Logo light ind Main fuse box (m/b) (on left side of engine compt) Microcomputer Nca Off Park Pointer illum light ind Radio illumination light Tail & illumination relay
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 4) for Subaru Impreza WRX 2004 List of elements for Power Distribution Wiring Diagram (1 of 4) for Subaru Impreza WRX 2004: 82 (diagram 2 of 4) (not used) (on left side of engine compartment) main fuse box (m/b) 2.0l turbo, 2.5l 2.5l turbo Abs control module Auto a/c control module B152 B158 B271 B280 B283 B51 B52 B55 B56 Battery Blower fan motor relay Clock Combination meter Driver's control center differential control unit Driver's control center differential relay F36 F37 F39 F40 F41 F68 From ignition switch g Front fog light relay Fuse & relay box (f/b) (behind left side of dash) Fuse 1 15a Fuse 1 20a Fuse 2 15a Fuse 3 10a Fuse 3 15a Fuse 4 10a Fuse 5 15a Fuse 6 15a Fuse 7 15a Fuse 7 20a Fuse 8 15a Fuse 8 20a Fuse 9 15a Gb-3 Generator Hazard switch Headlights system Horn relay I11 Ignition relay (behind left side of dash, in relay block) Integrated module Key illumination light Key warning switch Keyless buzzer Keyless entry control module Left headlight relay Nca Parking switch Power window circuit breaker Power window relay R79 Radio Rear defogger relay Red Right headlight relay Room light Sbf-1 fuse 80a Sbf-3 fuse 50a Sbf-5 fuse 30a Sbf-6 fuse 30a Security control module Security horn relay Spot light Starter motor To fuel pump relay (diagram 4 of 4) To ignition switch (diagram 2 of 4) To main fuse box sbf-4 (diagram 2 of 4) To tail & illumination relay (diagram 3 of 4) Trailer connector Transmission control module Power Distribution Wiring Diagram (2 of 4) for Subaru Impreza WRX 2004 List of elements for Power Distribution Wiring Diagram (2 of 4) for Subaru Impreza WRX 2004: 64 (2.0l turbo, a/t) (2.5l turbo, m/t) 10a 2.5l 30a A/t Abs control module Abs relay Acc Auto a/c control module B134 B136 B137 B158 B271 B283 B94 Clock Combination meter Combination switch Cruise control module (a/t) Engine control module F35 F36 F38 F40 From main fuse box headlight relays (diagram 1 of 4) From main fuse box sbf-1 (diagram 1 of 4) Front washer motor Front wiper motor Front wiper switch Fuse & relay box (f/b) (behind left side of dash) Fuse 13 10a Fuse 14 10a Fuse 15 30a Fuse 9 15a Generator I11 Ignition switch Inhibitor switch Interrupt relay Lock M/t Main fuse box (m/b) (on left side of engine compt) Nca Off Radio Rear washer motor Rear wiper intermittent module Rear wiper motor Relay holder Sbf holder Sbf-2 fuse 50a Sbf-4 fuse 50a Short connector Start Starter interlock relay To air conditioning fuse holder (diagram 4 of 4) To fuse & relay box (diagram 4 0f 4) To fuse & relay box fuse 18 (diagram 3 of 4) To fuse & relay box fuse 4 (diagram 4 of 4) To ignition relay (diagram 1 of 4) W/ security W/o security Power Distribution Wiring Diagram (3 of 4) for Subaru Impreza WRX 2004 List of elements for Power Distribution Wiring Diagram (3 of 4) for Subaru Impreza WRX 2004: 90 (behind left side of dash) (not used) 2.0l turbo 2.0l turbo, 2.5l turbo 2.5l 2.5l turbo A/t select lever illumination light Ab3 Abs relay Air bag control module Air conditioning relay Air conditioning relay holder (at left side of engine compt) Air conditioning switch Auto a/c control module Automatic a/c B134 B136 B137 B152 B158 B271 B281 B282 B51 B52 B54 Back-up light switch (m/t) Blower fan motor relay Blower motor relay Check connector Clock Combination meter Compact disc player illumination light Cruise control main switch Cruise control main switch illumination light Cruise control module Daytime running light relay Driver's control center differential control unit Driver's control center differential relay Drl control module Engine control module F27 F41 From fuse & relay box f40 pin 9 (diagram 1 of 4) From ignition switch (diagram 2 of 4) Front fog light switch illumination light Fuel pump relay Fuse & relay box (f/b) Fuse 11 15a Fuse 12 10a Fuse 17 15a Fuse 18 15a Fuse 6 15a Glove box illumination light Hazard switch illumination light Headlight leveler switch Hid relay High beam relay I11 Ignition coil & ignitor Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Inhibitor switch (a/t) Integrated module Keyless entry control module Left headlight leveler Lighting switch Main fan relay (2.5l) Main fan relay 1 Main fan relay 2 Manual a/c Mode control panel illumination light Nca Parking switch Pressure switch Radio illumination light Rear defogger relay Red Right headlight leveler Security control module Sub fan relay (2.5l) Sub fan relay 1 Sub fan relay 2 Tail & illumination relay Transmission control module Vehicle speed sensor (m/t) Wiper deicer relay Wiper deicer timer Power Distribution Wiring Diagram (4 of 4) for Subaru Impreza WRX 2004 List of elements for Power Distribution Wiring Diagram (4 of 4) for Subaru Impreza WRX 2004: 51 (not used) 2.0l turbo 2.0l turbo, 2.5l turbo 2.5l 2.5l turbo 20a Air conditioning relay holder (at left side of engine compt) B135 B158 B225 B271 B281 B52 B65 B84 Compass mirror Data link connector Electric throttle relay Engine control module F27 F40 From fuse & relay box (diagram 2 of 4) From main fuse box (diagram 1 of 4) From main fuse box (diagram 2 of 4) From main fuse box sbf-2 (diagram 2 of 4) Fuel pump relay Fuse & relay box (f/b) (behind left side of dash) Fuse 10 10a Fuse 16 20a Fuse 19 20a Fuse 20a Fuse 4 20a Gb-3 Gb-5 (behind center of dash) Gb-7 (under right front seat) Integrated module Inter cooler water spray switch Inter cooler water spray timer Main fan relay Main fan relay 1 Main fan relay 2 Main relay Mirror heater relay Nca Rear 12v accessory relay (behind left side of dash, in relay block) Rear accessory socket fuse holder Remote controlled rearview mirror switch Stoplight switch Sub fan relay Sub fan relay 1 Wiper deicer relay
POWER MIRRORS Automatic Day/Night Mirror Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Automatic Day/Night Mirror Wiring Diagram for Subaru Impreza WRX 2004: 17 (2.0l turbo) (2.5l turbo) (2.5l) A/t B271 B52 Back-up light switch (on left side of transmission) Compass mirror Fuse & relay box (f/b) (behind left side of dash) Fuse 15a Fuse 20a Gb-6 (under left front of center console) Hot in acc or on Hot in on or start Inhibitor switch M/t Nca Power Mirror Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Power Mirror Wiring Diagram for Subaru Impreza WRX 2004: 18 B271 Change over switch Defogger system Fuse & relay box (f/b) (behind left side of dash) Fuse 4 20a Gb-3 Hot in acc or on Left rearview mirror Left/ right m Mirror heater Motor Nca Red Remote control rearview mirror switch Right rearview mirror Up/ down m W/ heated mirrors W/o heated mirrors
POWER SEATS Heated Seats Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Heated Seats Wiring Diagram for Subaru Impreza WRX 2004: 19 B271 F36 Fuse & relay box (f/b) (behind left side of dash) Fuse 20a Gb-5 (behind center of dash) Gb-6 (under left front of center console) High Hot at all times Hot in acc or on Left seat heater (under left front seat) Left seat heater switch Low Main fuse box (m/b) (on left side of engine compt) Off Rear 12v accessory relay (behind left side of dash, in relay block) Rear accessory socket fuse holder Right seat heater (under right front seat) Right seat heater switch (except 2.5l turbo) Sbf-2 fuse 50a
POWER TOP/SUNROOF Sunroof Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Sunroof Wiring Diagram for Subaru Impreza WRX 2004: 18 Close F36 F68 Fuse 15a Gb-1 (right side of engine (compt) Hot at all times Ignition relay (behind left side of dash, in relay block) Main fuse box (on left side of engine compt) Nca Open Power window circuit breaker (under left side of dash) Power window relay (behind left side of dash, in relay block) Red Sbf-6 fuse 30a Sun roof control module & motor (at right front of headliner) Sunroof switch Tilt down Tilt up
POWER WINDOWS Power Windows Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Power Windows Wiring Diagram for Subaru Impreza WRX 2004: 25 Auto down Auto up Auto up/down circuit Down F68 Fuse 5 15a Gb-5 (behind center of dash) Hot at all times Ignition relay (behind left side of dash, in relay block) Left front Left front power window motor (at center of left front door) Left rear Left rear power window motor (at center of left rear door) Left rear power window sub switch Main fuse box (m/b) (on left side of engine compt) Power tops system Power window circuit breaker (under left side of dash) Power window main switch Power window relay (behind left side of dash, in relay block) Right front Right front power window motor (at center of right front door) Right front power window sub switch Right rear Right rear power window motor (at center of right rear door) Right rear power window sub switch
RADIO Radio Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Radio Wiring Diagram for Subaru Impreza WRX 2004: 21 Antenna Antenna amplifier (sedan: at left "c" pillar) (wagon: behind left rear quarterpanel) B271 Bracket earth F68 Fuse & relay box (f/b) (behind left side of dash) Fuse 2 15a Fuse 9 15a Gr (under right front of center console) Hot at all times Hot in acc or on Interior lights system Left front door speaker Left front door tweeter Left rear door speaker Main fuse box (m/b) (on left side of engine compt) Nca Radio Right front door speaker Right front door tweeter Right rear door speaker
SHIFT INTERLOCK Shift Interlock Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Shift Interlock Wiring Diagram for Subaru Impreza WRX 2004: 26 "p" position switch B152 B158 B271 B280 B281 F37 Fuse & relay box (f/b) (behind left side dash) Fuse 11 15a Fuse 16 20a Fuse 3 15a Fuse 4 20a Fuse 6 15a Gb-4 (behind right side of dash) Gb-5 (behind center of dash) Hot at all times Hot in acc or on Hot in on or start Inhibitor switch (a/t) Integrated module (behind left side of dash) Key lock solenoid (on steering column, behind ignition key cylinder) Key warning switch (in steering column) Main fuse box (m/b) (on left side of engine compt) Red Shift lock solenoid Stop light switch (on bracket, above brake pedal)
STARTING/CHARGING Charging Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Charging Wiring Diagram for Subaru Impreza WRX 2004: 26 2.5l turbo Acc B158 Battery Charge ind Combination meter Except 2.5l turbo F35 F38 F39 Fuse & relay box (f/b) (behind left side of dash) Fuse 13 10a Fuse 3 10a Generator I10 I11 Ignition switch Lock Main fuse box (m/b) (on left side of engine compt) Nca On off Power distribution system Sbf-1 fuse 80a Sbf-4 fuse 50a Start Starter motor Starting Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Starting Wiring Diagram for Subaru Impreza WRX 2004: 33 (w/ turbo) (w/o turbo) 2.5l turbo A/t Acc Anti-theft system B134 B136 B137 Battery Clutch switch (on bracket, above clutch pedal) Connector Cruise control module (a/t) (behind left side of dash) Daytime running light control module (behind right side of dash) Engine control module (a/t w/ turbo) (behind right side of dash) Engine control module (behind right side of dash) F38 Gb-5 (behind center of dash) Ignition switch Inhibitor switch Interrupt relay (behind left side of dash) Lock M/t Main fuse box (m/b) (on left side of engine compt) Nca On off Sbf-1 fuse 80a Sbf-4 fuse 50a Start Starter interlock relay (behind left side of dash, in relay block) Starter motor W/ anti-theft W/o anti-theft
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Supplemental Restraints Wiring Diagram for Subaru Impreza WRX 2004: 32 (near bottom of right "a" pillar) Ab3 Ab7 Ab8 Air bag circuit Air bag control module (under right front center console) Air bag warning light Check connector (behind left side of dash) Combination meter Diagnosis connector (behind left side of dash) Driver side inflator Fuse & relay box (f/b) (behind left side of dash) Fuse 10a Fuse 15a Gb-3 Gb-4 (behind right side of dash) Gb-5 (behind center of dash) Hot in on or start I10 I11 Left front sub sensor Left pretensioner (w/elr) Left side air bag sensor Left side inflator Nca Passenger side inflator Red Right front sub sensor Right pretensioner (w/elr) Right side air bag sensor Right side inflator Steering roll connector
TRANSMISSION
2.0L TURBO 2.0L Turbo, A/T Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.0L Turbo, A/T Wiring Diagram for Subaru Impreza WRX 2004: 58 (behind dash, left of steering column) data link connector (behind left side of dash) check connector (on right side of transmission case) 2-4b timing solenoid A/t control (transmission) A/t oil temp ind A18 A19 A=b134 b=b135 d=b137 Anti-lock brakes system B152 B158 B19 B20 B28 B54 B55 B56 Combination meter Cruise control system D14 Dimmer circuit Engine control module (ecm) (behind right side of dash) F37 Fuse & relay box (f/b) (behind left side of dash) Fuse 10a Fuse 15a Fuse 20a Gb-4 (behind right side of dash) Hot at all times Hot in on or start I/f I10 I11 I12 Inhibitor switch L/c timing solenoid Line end check connector (under left side of dash) Line pressure solenoid Main fuse box (m/b) (on left side of engine compt) Micro- computer Nca Red Sensor atf temperature Shield & sensor ground joint connector (behind right side of dash) Shield joint connector (behind left side of dash) Shift solenoid 2 Solenoid 1 shift Solenoid 2-4b Solenoid awd Solenoid lock-up Speed- meter Stoplight switch (on bracket, above brake pedal) Throttle position sensor (on throttle body assembly) Transmission control module (tcm) (behind left side of dash) Turbine speed sensor Vehicle speed sensor 1 Vehicle speed sensor 2
2.5L 2.5L, A/T Wiring Diagram for Subaru Impreza WRX 2004 List of elements for 2.5L, A/T Wiring Diagram for Subaru Impreza WRX 2004: 63 (behind right side of dash) (on right side of engine compt) dropping resistor (on right side of transmission case) (under left side of dash) line end check connector 2-4b timing solenoid A/t control (transmission) A/t oil temp ind A10 A=b134 b=b135 c=b136 d=b137 Anti-lock brakes system Atf temperature sensor B13 B152 B158 B19 B52 B54 B55 C15 C18 Check connector (behind left side of dash) data link connector (behind dash, left of steering column) Combination meter Cruise control system D19 Dimmer circuit Engine control module (ecm) (behind right side of dash) F37 Fuse & relay box (f/b) (behind left side of dash) Fuse 10a Fuse 15a Fuse 20a Fwd ind Fwd switch (fuse) (w/ awd) (in main fuse box (m/b)) Gb-1 (right side of engine compt) Gb-4 Hot at all times Hot in on or start Hot w/ tail & illumination relay energized I/f I10 I11 I12 Inhibitor switch L/c timing solenoid Main fuse box (m/b) (on left side of engine compt) Micro computer Nca Red Shield & sensor ground joint connector (behind right side of dash) Shield joint connector (behind left side of dash) Shift solenoid 2 Solenoid 1 shift Solenoid 2-4b Solenoid awd Solenoid line pressure Solenoid lock-up Speedmeter Stoplight switch (on bracket, above brake pedal) Throttle position sensor (on throttle body assembly) Transmission control module (tcm) (behind left side of dash) Turbine speed sensor Vehicle speed sensor 1 Vehicle speed sensor 2
WARNING SYSTEMS Warning Systems Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Warning Systems Wiring Diagram for Subaru Impreza WRX 2004: 26 (on left side of engine compt) B152 B158 B280 B281 Combination meter Door warning ind F37 F68 Fuse & relay box (f/b) (behind left side of dash) Fuse 11 15a Fuse 13 10a Fuse 2 15a Fuse 6 15a Gb-2 (near the left headlight) Gb-6 (under left front of center console) Hot at all times Hot in on or start I10 I11 Integrated module (behind left side of dash) Key warning switch (in steering column) Left front door switch (at rear of left front door) Main fuse box (m/b) Seat belt switch (in driver's seat belt buckle) Seat belt warning light ind
WIPER/WASHER Front Wiper/Washer Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Front Wiper/Washer Wiring Diagram for Subaru Impreza WRX 2004: 21 B158 Combination switch Front washer motor (at left front of engine compt) Front wiper motor (at left rear of engine compt) Fuse & relay box (f/b) (behind left side of dash) Fuse 15 30a Gb-3 Hot in acc or on Int Int volume Intermittent wiper module Mist Mist switch Nca Off Park Rear wiper circuit Run Washer switch Wiper motor Wiper switch Rear Wiper/Washer Wiring Diagram for Subaru Impreza WRX 2004 List of elements for Rear Wiper/Washer Wiring Diagram for Subaru Impreza WRX 2004: 20 (sedan: near license plate light) (wagon: under right taillight assembly) gb-8 B158 Combination switch F40 Front wiper/ washer circuit Fuse & relay box (f/b) (behind left side of dash) Fuse 14 10a Gb-3 Gb-8 (sedan: near license plate light) (wagon: under right taillight assembly) Hot in acc or on Nca Off Park Rear washer motor (at left front of engine compt) Rear wiper intermittent module (behind right rear quarterpanel) Rear wiper motor (at center of rear gate) Rear wiper/ washer switch Run Wash Wiper motor
