ENGINE PERFORMANCE – Ford Focus LX 2004 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.0L DOHC

2.0L DOHC, Engine Performance Wiring Diagram, Except SVT (1 of 3) for Ford Focus LX 2004

List of elements for 2.0L DOHC, Engine Performance Wiring Diagram, Except SVT (1 of 3) for Ford Focus LX 2004:

• (dohc)
• (in engine compt) s195
• (left side of engine compt)
• (right "a" pillar) g202
• (sohc)
• 1 pos
• 10-gl37
• 15-re16
• 15s-re8
• 15s-ta17
• 15s-ta21
• 15s-ta24
• 15s-ta38a
• 15s-ta40
• 15s-ta41
• 15s-ta42
• 2 pos
• 29-re14
• 31-re8
• 31s-aa43
• 31s-bb16
• 31s-gl6
• 31s-pa17
• 31s-re32
• 31s-rl12
• 31s-rr1
• 31s-rr2
• 4-eg9
• 5-eg9
• 8-ce10
• 8-gl37
• 8-re22
• 8-rj15
• 8-rj17
• 8-rj33
• 8-rj4
• 8-rj5
• 8-rs3
• 8-ta27
• 8-ta36
• 9-rj22
• 9-rj29
• 9-rj4
• 91-re8a
• 91-re8b
• 91s-pa25
• A/c clutch relay
• A/c system
• Ac press
• Acc
• Act
• All times
• Anti-theft system
• Battery junction box (bjb) (left rear corner of engine compt)
• C175
• C252
• C270b
• C270e
• Central junction box (cjb) (behind left side of dash)
• Cht
• Ckp sens
• Computer data lines system
• Cooling fans system
• Crankshaft position sensor (sohc: right front of engine, dohc: on front of engine)
• Cruise control & sound systems
• D pos
• Dataline
• Diode
• Dlc
• Dohc sohc
• Ecr sol
• Ect
• Electr. vacuum regulator solenoid valve (on left side of firewall)
• Engine cooling fan relay
• Fp driver
• Fuel pump
• Fuel pump driver module (under right rear seat)
• Fuel pump relay
• Fuel tank unit
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 30a
• G103
• G103 (left side of engine compt)
• G301 (under right rear seat)
• Ground
• High fan
• High speed fan control relay
• Ho2s 22
• Hot at all times
• Ign coil
• Ignition coil (on top rear of engine)
• Ignition relay
• Ignition switch
• Ignition transformer capacitor (on rear of cyl head, beside ign coil)
• Imrc
• Inertia fuel shutoff (ifs) switch (behind right kick panel)
• Inj 3
• Lock
• Low speed engine cooling fan relay a
• Low speed engine cooling fan relay b
• Maf
• Mil ind
• O/d sw
• Oss
• Passive anti-theft transceiver module (on upper right side of steering column)
• Pats
• Pats ind
• Plugs
• Power hold relay
• Powertrain control module (pcm) (behind right side of dash, at base of "a" pillar)
• Psp sens
• R pos
• Red
• Run
• S117
• S118
• S119
• S154 (near break- out for coil on plug 2)
• S181 (or s381)
• S252
• Sohc
• Start
• Start sig
• Starter relay
• Starting/charging system
• Tft sens
• To spark
• Trans unit
• Tss
• Vss out

2.0L DOHC, Engine Performance Wiring Diagram, Except SVT (2 of 3) for Ford Focus LX 2004

List of elements for 2.0L DOHC, Engine Performance Wiring Diagram, Except SVT (2 of 3) for Ford Focus LX 2004:

• (a/t)
• (engine control harn, near breakout for a/c compressor cycling switch)
• (engine control harn, near breakout to battery)
• (fuel shutoff harn, near breakout to c1010 or c192)
• (fuel shutoff harn, near breakout to intake system)
• (on left side of transmission)
• (under left side of dash) data link connector (dlc)
• Air charge temp
• C220a
• C251
• Check engine indicator
• Clutch pedal position switch (on clutch pedal support)
• Dohc
• Dual pressure switch (right side of engine compt)
• Engine coolant temperature (ect) sensor (sohc) cylinder head temperature sensor (dohc)
• Exhaust pressure transducer (ept) sensor (near brake master cylinder)
• Exterior lights system
• Fuel rail pressure transducer sensor (on engine)
• Fuel tank pressure transducer sensor (in fuel tank)
• G103 (left side of engine compt)
• G203 (right "a" pillar)
• Gearshift lever unit (a/t)
• Instrument cluster
• Mass airflow (maf) sensor (on intake system)
• Nca
• O/d off switch
• Power steering pressure sensor (on power steering pump)
• S159
• S163
• S198
• S212
• Sohc
• Solid state
• Throttle position sensor (tpc) (on throttle body)
• Transmission hardware unit (a/t)
• Transmission range sensor

2.0L DOHC, Engine Performance Wiring Diagram, Except SVT (3 of 3) for Ford Focus LX 2004

List of elements for 2.0L DOHC, Engine Performance Wiring Diagram, Except SVT (3 of 3) for Ford Focus LX 2004:

• (2.0l dohc: in eng ctrl sensor ext harn, near breakout for ho2s 11 2.0l spi: in eng ctrl harn, near break- out for electronic vac reg sol vlv)
• (a/t)
• (engine control harn, near breakout to c211)
• (fuel shutoff harn, near breakout for inj 3 or 4) s169
• (in exhaust system) heated oxygen sensor (ho2s) 11
• (in exhaust system) heated oxygen sensor (ho2s) 12
• (left side of engine compt)
• (m/t)
• (on brake pedal bracket) stoplamp switch
• (on rear of trans) (a/t) output shaft speed (oss) sensor
• (on top of trans) (a/t) turbine shaft speed (tss) sensor
• (or 9-rj3)
• (sohc)
• 15-re8
• 15-re8a
• 15s-re13
• 15s-ta23
• 15s-ta37
• 15s-ta63
• 15s-ta64
• 15s-ta65
• 30-re8
• 31s-fa11
• 31s-pa17
• 31s-pa7
• 31s-rl10
• 31s-rl11
• 31s-rl13
• 31s-rl25
• 31s-rl9
• 31s-rs3
• 4-eb6
• 5-eb6
• 7-re8
• 8-bb6
• 8-pa13
• 8-rj11
• 8-rj13
• 8-rj14
• 8-rj18
• 8-rj22
• 8-rj28
• 8-rj29
• 8-rj3
• 8-rj7
• 9-re8
• 9-re8a
• 9-rj18
• 91-re8
• 91-re8c
• 91s-rj14
• 91s-rj15
• 91s-rl3
• 91s-ta17
• A/c system
• A/t
• Ac press
• Battery
• Battery junction box (bjb) (left rear corner of engine compt) red
• Brake pedal position switch
• C270f
• C415
• Camshaft position sensor (on top of engine)
• Central junction box (cjb) (behind left side of dash)
• Cmp sens
• Cool fan
• Cooling fans system
• Cpp
• Dohc sohc
• Ept sens
• Evap canister purge valve (left rear side of engine compt)
• Evap purge
• Evap vent
• Evaporative emission canister vent valve (under rear of vehicle)
• Exterior lights system
• Fan rly
• Fuel injectors
• Fuse 10a
• Fuse 15a
• G103
• G103 (left side of engine compt)
• Gen
• Generator
• Ground
• Ho2s 21
• Ho2s 22
• Hot at all times
• Idle air control (iac) valve (on intake system)
• Idle spd
• Imrc
• Inj 1
• Inj 2
• Inj 4
• Inlet manifold runner control (imrc) module (sohc) (on top rear of engine)
• Instrument cluster system
• Knock sensor (right side of engine)
• Maf
• Nca
• Oss
• Pnp
• Power
• Powertrain control module (pcm) (behind right side of dash, at base of "a" pillar)
• Rail press
• Red
• Return
• S161
• S202 (main harn, near break- out to stoplight switch)
• S252
• S267
• S268 (engine control harn, near breakout to pcm)
• Sohc dohc
• Stoplamp
• Tank press
• Tps
• Trans unit
• V ref
• Vehicle speed sensor (vss) (m/t) (on rear of transmission)
• Vss
• Wot rly

2.0L DOHC, Engine Performance Wiring Diagram, SVT (1 of 3) for Ford Focus LX 2004

List of elements for 2.0L DOHC, Engine Performance Wiring Diagram, SVT (1 of 3) for Ford Focus LX 2004:

• (right "a" pillar) g202
• 10-gl37
• 15-re16
• 15s-re8
• 29-re14
• 31-re8
• 31s-bb16
• 31s-gl6
• 31s-re32
• 31s-rl12
• 31s-rl27
• 31s-rr1
• 31s-rr2
• 4-ec7
• 4-eg9
• 5-ec7
• 5-eg9
• 8-gl37
• 8-re22
• 8-rj1
• 8-rj15
• 8-rj16
• 8-rj17
• 8-rj4
• 8-rj5
• 9-rj22
• 9-rj4
• 91-re8a
• 91-re8b
• 91-re8e
• 91s-ce6
• 91s-rl3
• 91s-rs3
• A/c clutch relay
• A/c system
• Ac press
• Acc
• Act
• Anti-theft system (pats ind)
• Battery junction box (bjb) (left rear corner of engine compt)
• C175
• C252
• C270b
• C270e
• Can-h
• Can-l
• Central junction box (cjb) (behind left side of dash)
• Cht
• Ckp sens
• Computer data lines system
• Crankshaft position sensor (on front of engine)
• Cruise control system, sound systems
• Dataline
• Diode
• Dlc
• Engine cooling fan relay
• Evap vent
• Fp driver
• Fuel pump
• Fuel pump driver module (under right rear seat)
• Fuel pump relay
• Fuel tank unit
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 30a
• G103 (left side of engine compt)
• G301 (under right rear seat)
• Ground
• High speed fan control relay
• Ho2s 22
• Hot at all times
• Ign coil
• Ignition coil (on top rear of engine)
• Ignition relay
• Ignition switch
• Ignition transformer capacitor (beside ignition coil)
• Inertia fuel shutoff (ifs) switch (behind right kick panel)
• Inj 3
• Lock
• Low speed engine cooling fan relay a
• Low speed engine cooling fan relay b
• Maf
• Passive anti-theft transceiver module (on upper right side of steering column)
• Pats
• Pats ind
• Plugs
• Power hold relay
• Power steering pressure switch (near left front of cylinder head)
• Powertrain control module (pcm) (behind right side of dash, at base of "a" pillar)
• Psp sw
• Red
• Run
• S117
• S118
• S119
• S154 (eng ctrl harn, near breakout for coil on plug 2)
• S252
• S381
• Sensor sig
• Start
• Start sig
• Starter relay
• Starting/charging system
• Sw gnd
• To spark
• Vss out

2.0L DOHC, Engine Performance Wiring Diagram, SVT (2 of 3) for Ford Focus LX 2004

List of elements for 2.0L DOHC, Engine Performance Wiring Diagram, SVT (2 of 3) for Ford Focus LX 2004:

• (fuel shutoff harn, near breakout to c192)
• (fuel shutoff harn, near breakout to intake system)
• (in eng compt)
• (in eng ctrl harn, near breakout for a/c compressor cycling switch)
• (left front of engine compt) g101
• (on transmission) inlet manifold runner control (imrc) module
• (under left side of dash) data link connector (dlc)
• (under rear of vehicle) evaporative emission (evap) canister vent valve
• 15-rs3
• 8-rj16
• 91-rj16
• 91-rs3
• 91s-rs3
• Air charge temp
• Barometric absolute pressure (bap) sensor
• C220a
• C251
• Check engine indicator
• Clutch pedal position switch (on clutch pedal support)
• Dual pressure switch (at right side of eng compt)
• Engine coolant temperature sensor
• Fuel rail pressure transducer sensor (on engine)
• Fuel tank pressure transducer sensor (in fuel tank)
• G103 (left side of engine compt)
• G203 (right "a" pillar)
• Ground
• Ign
• Instrument cluster
• Mass air flow (maf) sensor (on intake system)
• S141
• S159 (engine control harn, near breakout for battery)
• S163
• S197
• S198
• S212
• S252
• Signal
• Solid state
• Sw gnd
• Throttle position sensor (tps) (on throttle body)

2.0L DOHC, Engine Performance Wiring Diagram, SVT (3 of 3) for Ford Focus LX 2004

List of elements for 2.0L DOHC, Engine Performance Wiring Diagram, SVT (3 of 3) for Ford Focus LX 2004:

• (engine control harn, near breakout to ho2s 11) s161
• (fuel shutoff harn, near breakout to inj 3) s169
• (in exhaust system) heated oxygen sensor (ho2s) 11
• (in exhaust system) heated oxygen sensor (ho2s) 12
• (left side of engine compt)
• (on brake pedal support) stoplamp switch
• (under intake manifold)
• 15-re8
• 15-re8a
• 15s-re13
• 30-re8
• 31s-aa43
• 31s-fa11
• 31s-pa7
• 31s-rl10
• 31s-rl11
• 31s-rl13
• 31s-rl25
• 31s-rl7
• 4-eb6
• 5-eb6
• 7-re8
• 8-bb6
• 8-pa13
• 8-rj11
• 8-rj13
• 8-rj14
• 8-rj18
• 8-rj22
• 8-rj28
• 8-rj29
• 8-rj3
• 9-re8
• 9-rj18
• 9-rj3
• 91-re8 91-re8
• 91-re8c
• 91s-rj14
• 91s-rj15
• A/c system
• Ac press
• Battery
• Battery junction box (bjb) (left rear corner of engine compt) red
• C175
• C270f
• Camshaft position sensor (on top of eng)
• Camshaft timing actuator (on cyl head)
• Central junction box (cjb) (behind left side of dash)
• Cmp
• Cmp sens
• Cooling fans system
• Cpp
• Evap canister purge valve (left rear side of engine compt)
• Evap purge
• Exterior lights system
• Fan rly
• Fpt
• Fuel injectors
• Fuse 10a
• Fuse 15a
• G103
• G103 (left side of engine compt)
• Gen
• Generator
• Ground
• Ground ground
• Ho2s 21
• Ho2s 22
• Hot at all times
• Idle air control (iac) valve (on intake system)
• Idle spd
• Inj 1
• Inj 2
• Inj 4
• Instrument cluster system
• Knock sensor
• Maf
• Mil ind
• Nca
• Power
• Powertrain control module (pcm) (behind right side of dash, at base of "a" pillar)
• Red
• Return
• S252
• S267 (engine control harn, near breakout to c211)
• Stoplamp
• Tank press
• Tps
• V ref
• Vehicle speed sensor (vss) (on rear of transmission)
• Vss
• Wot rly

2.0L SOHC

2.0L SOHC, Engine Performance Wiring Diagram (1 of 3) for Ford Focus LX 2004

List of elements for 2.0L SOHC, Engine Performance Wiring Diagram (1 of 3) for Ford Focus LX 2004:

• (dohc)
• (in engine compt) s195
• (left side of engine compt)
• (right "a" pillar) g202
• (sohc)
• 1 pos
• 10-gl37
• 15-re16
• 15s-re8
• 15s-ta17
• 15s-ta21
• 15s-ta24
• 15s-ta38a
• 15s-ta40
• 15s-ta41
• 15s-ta42
• 2 pos
• 29-re14
• 31-re8
• 31s-aa43
• 31s-bb16
• 31s-gl6
• 31s-pa17
• 31s-re32
• 31s-rl12
• 31s-rr1
• 31s-rr2
• 4-eg9
• 5-eg9
• 8-ce10
• 8-gl37
• 8-re22
• 8-rj15
• 8-rj17
• 8-rj33
• 8-rj4
• 8-rj5
• 8-rs3
• 8-ta27
• 8-ta36
• 9-rj22
• 9-rj29
• 9-rj4
• 91-re8a
• 91-re8b
• 91s-pa25
• A/c clutch relay
• A/c system
• Ac press
• Acc
• Act
• All times
• Anti-theft system
• Battery junction box (bjb) (left rear corner of engine compt)
• C175
• C252
• C270b
• C270e
• Central junction box (cjb) (behind left side of dash)
• Cht
• Ckp sens
• Computer data lines system
• Cooling fans system
• Crankshaft position sensor (sohc: right front of engine, dohc: on front of engine)
• Cruise control & sound systems
• D pos
• Dataline
• Diode
• Dlc
• Dohc sohc
• Ecr sol
• Ect
• Electr. vacuum regulator solenoid valve (on left side of firewall)
• Engine cooling fan relay
• Fp driver
• Fuel pump
• Fuel pump driver module (under right rear seat)
• Fuel pump relay
• Fuel tank unit
• Fuse 10a
• Fuse 15a
• Fuse 20a
• Fuse 30a
• G103
• G103 (left side of engine compt)
• G301 (under right rear seat)
• Ground
• High fan
• High speed fan control relay
• Ho2s 22
• Hot at all times
• Ign coil
• Ignition coil (on top rear of engine)
• Ignition relay
• Ignition switch
• Ignition transformer capacitor (on rear of cyl head, beside ign coil)
• Imrc
• Inertia fuel shutoff (ifs) switch (behind right kick panel)
• Inj 3
• Lock
• Low speed engine cooling fan relay a
• Low speed engine cooling fan relay b
• Maf
• Mil ind
• O/d sw
• Oss
• Passive anti-theft transceiver module (on upper right side of steering column)
• Pats
• Pats ind
• Plugs
• Power hold relay
• Powertrain control module (pcm) (behind right side of dash, at base of "a" pillar)
• Psp sens
• R pos
• Red
• Run
• S117
• S118
• S119
• S154 (near break- out for coil on plug 2)
• S181 (or s381)
• S252
• Sohc
• Start
• Start sig
• Starter relay
• Starting/charging system
• Tft sens
• To spark
• Trans unit
• Tss
• Vss out

2.0L SOHC, Engine Performance Wiring Diagram (2 of 3) for Ford Focus LX 2004

List of elements for 2.0L SOHC, Engine Performance Wiring Diagram (2 of 3) for Ford Focus LX 2004:

• (a/t)
• (engine control harn, near breakout for a/c compressor cycling switch)
• (engine control harn, near breakout to battery)
• (fuel shutoff harn, near breakout to c1010 or c192)
• (fuel shutoff harn, near breakout to intake system)
• (on left side of transmission)
• (under left side of dash) data link connector (dlc)
• Air charge temp
• C220a
• C251
• Check engine indicator
• Clutch pedal position switch (on clutch pedal support)
• Dohc
• Dual pressure switch (right side of engine compt)
• Engine coolant temperature (ect) sensor (sohc) cylinder head temperature sensor (dohc)
• Exhaust pressure transducer (ept) sensor (near brake master cylinder)
• Exterior lights system
• Fuel rail pressure transducer sensor (on engine)
• Fuel tank pressure transducer sensor (in fuel tank)
• G103 (left side of engine compt)
• G203 (right "a" pillar)
• Gearshift lever unit (a/t)
• Instrument cluster
• Mass airflow (maf) sensor (on intake system)
• Nca
• O/d off switch
• Power steering pressure sensor (on power steering pump)
• S159
• S163
• S198
• S212
• Sohc
• Solid state
• Throttle position sensor (tpc) (on throttle body)
• Transmission hardware unit (a/t)
• Transmission range sensor

2.0L SOHC, Engine Performance Wiring Diagram (3 of 3) for Ford Focus LX 2004

List of elements for 2.0L SOHC, Engine Performance Wiring Diagram (3 of 3) for Ford Focus LX 2004:

• (2.0l dohc: in eng ctrl sensor ext harn, near breakout for ho2s 11 2.0l spi: in eng ctrl harn, near break- out for electronic vac reg sol vlv)
• (a/t)
• (engine control harn, near breakout to c211)
• (fuel shutoff harn, near breakout for inj 3 or 4) s169
• (in exhaust system) heated oxygen sensor (ho2s) 11
• (in exhaust system) heated oxygen sensor (ho2s) 12
• (left side of engine compt)
• (m/t)
• (on brake pedal bracket) stoplamp switch
• (on rear of trans) (a/t) output shaft speed (oss) sensor
• (on top of trans) (a/t) turbine shaft speed (tss) sensor
• (or 9-rj3)
• (sohc)
• 15-re8
• 15-re8a
• 15s-re13
• 15s-ta23
• 15s-ta37
• 15s-ta63
• 15s-ta64
• 15s-ta65
• 30-re8
• 31s-fa11
• 31s-pa17
• 31s-pa7
• 31s-rl10
• 31s-rl11
• 31s-rl13
• 31s-rl25
• 31s-rl9
• 31s-rs3
• 4-eb6
• 5-eb6
• 7-re8
• 8-bb6
• 8-pa13
• 8-rj11
• 8-rj13
• 8-rj14
• 8-rj18
• 8-rj22
• 8-rj28
• 8-rj29
• 8-rj3
• 8-rj7
• 9-re8
• 9-re8a
• 9-rj18
• 91-re8
• 91-re8c
• 91s-rj14
• 91s-rj15
• 91s-rl3
• 91s-ta17
• A/c system
• A/t
• Ac press
• Battery
• Battery junction box (bjb) (left rear corner of engine compt) red
• Brake pedal position switch
• C270f
• C415
• Camshaft position sensor (on top of engine)
• Central junction box (cjb) (behind left side of dash)
• Cmp sens
• Cool fan
• Cooling fans system
• Cpp
• Dohc sohc
• Ept sens
• Evap canister purge valve (left rear side of engine compt)
• Evap purge
• Evap vent
• Evaporative emission canister vent valve (under rear of vehicle)
• Exterior lights system
• Fan rly
• Fuel injectors
• Fuse 10a
• Fuse 15a
• G103
• G103 (left side of engine compt)
• Gen
• Generator
• Ground
• Ho2s 21
• Ho2s 22
• Hot at all times
• Idle air control (iac) valve (on intake system)
• Idle spd
• Imrc
• Inj 1
• Inj 2
• Inj 4
• Inlet manifold runner control (imrc) module (sohc) (on top rear of engine)
• Instrument cluster system
• Knock sensor (right side of engine)
• Maf
• Nca
• Oss
• Pnp
• Power
• Powertrain control module (pcm) (behind right side of dash, at base of "a" pillar)
• Rail press
• Red
• Return
• S161
• S202 (main harn, near break- out to stoplight switch)
• S252
• S267
• S268 (engine control harn, near breakout to pcm)
• Sohc dohc
• Stoplamp
• Tank press
• Tps
• Trans unit
• V ref
• Vehicle speed sensor (vss) (m/t) (on rear of transmission)
• Vss
• Wot rly

2.3L

2.3L, Engine Performance Wiring Diagram (1 of 4) for Ford Focus LX 2004

List of elements for 2.3L, Engine Performance Wiring Diagram (1 of 4) for Ford Focus LX 2004:

• 10-gl37
• 15-re16
• 15-re8
• 15-re8a
• 15s-re10a
• 15s-re13
• 15s-re8
• 15s-ta21
• 29-re14
• 30-re8
• 31-re8
• 31s-bb16
• 31s-fa11
• 31s-gl6
• 31s-pa17
• 31s-pa7
• 31s-re32
• 31s-rh1
• 31s-rl25
• 4-ec7
• 5-ec7
• 8-ce10
• 8-gl37
• 8-pa13
• 8-re22
• 8-rj13
• 8-rj17
• 8-rj22
• 9-rj22
• 9-rj3
• 91-re8
• 91-re8a
• 91-re8b
• 91s-rl3
• A/c clutch relay
• A/c clutch rly
• A/c press sw
• A/c system
• Acc
• Air charge temp
• Air pump rly
• All times
• Anti-theft system
• Battery
• Battery junction box (bjb) (left rear corner of engine compt)
• C175b
• C251
• C270b
• C270e
• Can h
• Can l
• Central junction box (cjb) (behind left side of dash)
• Computer data lines system
• Cooling fans system
• Cruise control & sound systems
• Data
• Data link connector (dlc) (under left side of dash)
• Diode
• Door lock
• Dual pressure switch (right side of engine compt)
• Evap canister purge valve
• Evap purge
• Evap vent
• Evaporative emission (evap) canister vent valve (under rear of vehicle)
• Ftp sens
• Fuel pump
• Fuse 10a
• Fuse 20a
• Fuse 30a
• G103 (left side of engine compt)
• G202 (right "a" pillar)
• Gearshift
• Ground
• Hi cool fan
• High speed cooling fan relay
• Hot at all times
• Ignition relay
• Ignition switch
• Lo cool fan
• Lock
• Low speed cooling fan relay
• Maf sens
• Mass air flow (maf) sensor (on intake system)
• Passive anti-theft transceiver module (on steering column)
• Pats ind
• Power hold relay
• Powertrain control module (pcm) (behind right side of dash, at base of "a" pillar)
• Psp sens
• Pwr hold rly
• Red
• Run
• Rx sig
• S117 (near battery junction box)
• S118
• S119
• S154 (engine control harn, near breakout for coil on plug 2)
• S252
• S279
• Sig return
• Start
• Start inhibit
• Starter relay
• Starting circuit
• Stop lamp
• Tx sig
• Vss out

2.3L, Engine Performance Wiring Diagram (2 of 4) for Ford Focus LX 2004

List of elements for 2.3L, Engine Performance Wiring Diagram (2 of 4) for Ford Focus LX 2004:

• (engine control harn, near breakout for a/c compressor cycling switch)
• (engine control harn, near breakout for battery) s159
• (engine control harn, near breakout for oil pressure switch)
• (engine control harn, near breakout to c211) s267
• (fuel shutoff harn, near breakout to intake system)
• (left front
• (left front side of eng compt) s188
• (on throttle body) throttle position sensor (tps)
• (top of engine) injection pressure sensor
• Air pump motor (left front corner of engine compt)
• Air pump relay
• Battery junction box (bjb) (left rear corner of engine compt)
• C270f
• Central junction box (cjb) (behind left side of dash)
• Exterior lights system
• Fuel pump
• Fuel pump driver module (under right rear seat)
• Fuel pump relay
• Fuel tank pressure transducer sensor (in fuel tank)
• Fuel tank unit
• Fuse 10a
• Fuse 15a
• Fuse 30a
• G103 (left side of engine compt)
• G301 (under right rear seat)
• Gearshift lever unit (a/t)
• Hot at all times
• Inertia fuel shutoff (ifs) switch (behind right kick panel)
• Manifold absolute pressure/ intake air temperature (map/iat) sensor (on intake system)
• O/d off switch
• Of engine compt) g100
• Power steering pressure sensor (on power steering pump)
• Red
• S118
• S121
• S181
• S191
• S193 (junction box wiring harn, near battery junction box)
• S194
• S197
• S198
• Secondary air injection bypass solenoid (right side of engine compt)
• Stoplamp switch (on brake pedal support)

2.3L, Engine Performance Wiring Diagram (3 of 4) for Ford Focus LX 2004

List of elements for 2.3L, Engine Performance Wiring Diagram (3 of 4) for Ford Focus LX 2004:

• (a/t)
• (engine control harn, near breakout for a/c compressor cycling sw)
• (engine control harn, near breakout to a/c compressor cycling sw)
• (engine control harn, near breakout to pcm)
• (engine ctrl sensor ext harn, near breakout for ho2s 21)
• (engine ctrl sensor ext harn, near breakout for pnp sw)
• (engine ctrl sensor ext harn, near breakout to c1026)
• (in exhaust system) heated oxygen sensor (ho2s) 12
• (in exhaust system) heated oxygen sensor (ho2s) 13
• (m/t)
• (on clutch pedal support) (m/t) clutch pedal position switch
• (on left side of transmission) (a/t) transmission range (tr) sensor
• (top of transmission) (a/t) turbine shaft speed (tss) sensor
• 15s-ta17
• 15s-ta23
• 15s-ta24
• 15s-ta37
• 15s-ta38a
• 15s-ta40
• 15s-ta41
• 15s-ta42
• 15s-ta63
• 15s-ta64
• 15s-ta65
• 8-bb6
• 8-rj15
• 8-rj29
• 8-rj41
• 8-ta27
• 8-ta36
• 9-da1
• 9-rj29
• 91s-rj15
• 91s-rj41
• 91s-ta17
• C175t
• C2220
• Check engine indicator
• Computer data lines system
• Cpp sw
• Epc sol
• Exterior lights system
• G103 (left side of engine compt)
• G203 (right "a" pillar)
• Ho2s 21 ctrl
• Ho2s 21 sig
• Ho2s 22 ctrl
• Ho2s 22 sig
• Instrument cluster
• Nca
• Oss sens
• Output shaft speed (oss) sensor (a/t) (rear of transmission)
• Powertrain control module (pcm) (behind right side of dash, at base of "a" pillar)
• S161
• S162
• S163
• S187
• S189
• S201
• S212
• S252
• Shift sol
• Shift sol a
• Shift sol b
• Shift sol c
• Shift sol d
• Sig return
• Solid state
• Tft sens
• Tr sens, 1
• Tr sens, 2
• Tr sens, d
• Tr sens, p/n
• Tr sens, rev
• Transmission hardware unit (a/t)
• Tss sens
• Vehicle speed sensor (m/t) (rear of transmission)
• Vss sig

2.3L, Engine Performance Wiring Diagram (4 of 4) for Ford Focus LX 2004

List of elements for 2.3L, Engine Performance Wiring Diagram (4 of 4) for Ford Focus LX 2004:

• (engine control harn, near breakout for a/c compressor cycling switch)
• (engine control sensor harn, near breakout for oil pressure switch)
• (left front of eng)
• (near breakout to intake system)
• (on intake system) idle air control (iac) valve
• (right side of engine compt) egr stepper motor
• 15-rl9a
• 15s-rr5
• 15s-rr6
• 15s-rr7
• 15s-rr8
• 31s-pa37
• 31s-rl10
• 31s-rl11
• 31s-rl12
• 31s-rl13
• 31s-rl20
• 31s-rl9
• 4-eb6
• 5-eb6
• 7-re8
• 8-8-rj14
• 8-rj11
• 8-rj16
• 8-rj18
• 8-rj20
• 8-rj28
• 8-rj3
• 8-rj33
• 8-rj4
• 9-re8
• 9-rj18
• 9-rj4
• 91s-pa51
• 91s-pa52
• 91s-pa53
• 91s-pa54
• 91s-rj14
• C175e
• Camshaft position sensor (right rear of cyl head)
• Cht sens
• Ckp sens
• Cmp sig
• Coil 1
• Coil 2
• Coil 3
• Coil 4
• Coil on plug
• Crankshaft position sensor (lower left front of eng)
• Cylinder- head temperature sensor (on cylinder head)
• Egr coil 1
• Egr coil 2
• Egr coil 3
• Egr coil 4
• Fuel inj 1
• Fuel inj 2
• Fuel inj 3
• Fuel inj 4
• Fuel injectors
• G103 (left side of engine compt)
• G202 (right "a" pillar)
• Gen comm
• Gen monitor
• Generator
• Heated oxygen sensor (ho2s) 11 (in exhaust system)
• Ho2s 11 ctrl
• Ho2s 11 sig
• Iac valve
• Imrc mod
• Imrc sol 1
• Imtv
• Inj press sig
• Inlet manifold runner control (imrc) solenoid 1 (on intake system)
• Intake manifold runner control (imrc) module (on left rear of engine)
• Intake manifold tuning valve (imtv) (on intake system)
• Knock sens
• Knock sensor
• Map sig
• Nca
• Powertrain control module (pcm) (behind right side of dash, at base of "a" pillar)
• Ref volt
• S156
• S160
• S169
• S199
• S252
• S279
• Sig return
• Tps sig
• Vbatt