ENGINE PERFORMANCE – Honda Civic LX 2003 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

IMA Wiring Diagram (1 of 3) for Honda Civic LX 2003

List of elements for IMA Wiring Diagram (1 of 3) for Honda Civic LX 2003:

• (at middle of trunk) g601
• (behind glove box) mcm relay 1
• (behind glove box) mcm relay 2
• (m/t)
• (top left side of engine) g101
• (under front passenger seat) g551
• (under gauge assembly) g501
• (under mpi) j/c c801
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• A19
• A20
• A21
• A22
• A23
• A24
• A25
• A26
• A27
• A28
• A29
• A30
• A31
• Abs system
• Absbusy
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• B17
• B18
• B19
• B20
• B21
• B22
• B23
• B24
• Battery current sensor (behind right side of dash)
• Box
• Braided
• Charge ind
• Cma
• Cmb
• Cmc
• Cnt
• Computer data lines system
• Cylout
• D11
• Dimming circuit
• Dvct
• Dvinh
• Fanctl
• Fuse 10a
• Fuse 7.5a
• G101
• G601
• Gauge assembly
• Hot at all times
• Hot in on or start
• Ig1
• Iga1
• Iga2
• Ighld
• Ighld2
• Ima ind
• Ima sys
• Ipu a
• Ipu fan module (right side of trunk)
• Ipua
• Isoc
• J/c c801 (under mpi)
• K-line
• Lg1
• Lg2
• Mcm
• Mota
• Motb
• Mpi module (behind right side of dash)
• Nca
• Nfan
• Pg1
• Pg2
• Pnk
• Pre
• Pwr +
• Pwr -
• Red
• Rscd
• Scs
• Sgcma
• Sgcmb
• Sgcmc
• Under- dash fuse/ relay
• Under- hood fuse/ relay
• Vbu
• Vcccma
• Vcccmb
• Vcccmc
• Warn
• Wen

IMA Wiring Diagram (2 of 3) for Honda Civic LX 2003

List of elements for IMA Wiring Diagram (2 of 3) for Honda Civic LX 2003:

• (left rear side of passenger floor) g651
• (m/t)
• (top left side of engine) g101
• + termianl
• - termianl
• Box
• Braided
• Bypass contractor
• Bypass resistor (left side of battery module)
• C13
• C15
• C21
• Capacitors
• Cvt
• Cylout
• Dc-dc converter
• Dvc
• E13
• E16
• E17
• Ecm (behind glove box)
• Fuse 10a
• Fuse 80a
• High voltage contractor
• Hot at all times
• Hot in on or start
• J/c c106 (behind glove box)
• J/c c801 (under mpi)
• M/t
• Mota
• Motb
• Motor communication sensor (middle of engine compt)
• Mpi module
• Nca
• Passenger seat) g551
• Pdu
• Pnk
• Red
• Rscd
• Rscdc
• Sensor a
• Sensor b
• Sensor c
• Snubber unit
• T101
• Transmission control module (behind right kick panel)
• Under- dash fuse/ relay
• Under- hood fuse/ relay

IMA Wiring Diagram (3 of 3) for Honda Civic LX 2003

List of elements for IMA Wiring Diagram (3 of 3) for Honda Civic LX 2003:

• (behind right side of dash) mpi module current sensor
• (behind right side of dash) u phase motor current sensor
• (behind right side of dash) v phase motor current sensor
• (behind right side of dash) w phase motor current sensor
• Battery module (behind right side of dash)
• Battery module fuse 100a
• Battery module switch
• C10
• C11
• C12
• C13
• C14
• C15
• C16
• C17
• Dc-dc con- verter
• Dc-dc converter fuse 20a
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• E17
• E18
• E19
• E20
• E21
• E22
• F10
• F11
• F12
• F13
• F14
• Ipin
• Iuph
• Ivph
• Mcm
• Motor stator
• Mpi module
• Nca
• Pdu
• Ptc +
• Ptc -
• Red
• Sgdv
• Sgip
• Sgiu
• Sgiv
• Sgiw
• Sgtb
• Tbatt1
• Tbatt2
• Tbatt3
• Tdv
• Vccip
• Vcciu
• Vcciv
• Vcciw
• Vhb0
• Vhb1
• Vhb10
• Vhb11
• Vhb2
• Vhb3
• Vhb4
• Vhb5
• Vhb6
• Vhb7
• Vhb8
• Vhb9
• Wph
• Y capacitor

1.3L

1.3L, Engine Performance Wiring Diagram, A/T (1 of 4) for Honda Civic LX 2003

List of elements for 1.3L, Engine Performance Wiring Diagram, A/T (1 of 4) for Honda Civic LX 2003:

• (behind glove box) j/c c106
• (behind glove box) pgm-fi main relay 1
• (in multi-fuse/relay box) pgm-fi main relay 2
• (top left side of eng) g101
• A/c, cooling fans systems
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• A19
• A20
• A21
• A22
• A23
• A24
• A25
• A26
• A27
• A28
• A29
• A30
• A31
• Afs (+)
• Afs (-)
• Afshtc (-)
• Afshtc +
• Atpd
• Atpnp
• Atpr
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• B17
• B18
• B19
• B20
• B21
• B22
• B23
• B24
• Box
• Ckp
• Ckp sensor (on front of eng)
• Cmp sensor (top rear of eng)
• Cooling fans system
• Ecm (behind glove box)
• Ect
• Egr
• Egr valve & egr valve position sensor (top rear of eng)
• Egrp
• Exterior lights system
• Fanc
• Front ignition coils
• Fuel injectors
• Fuel pump
• Fuel tank unit
• Fuse 15a
• G101 (top left side of eng)
• G551 (under front passenger's seat)
• Hot at all times
• Hot in on or start under- dash fuse/ relay box
• Iac valve (left rear of eng)
• Iacv
• Iat
• Icm
• Igp1
• Igp2
• Igpls1
• Igpls1e
• Igpls2
• Igpls2e
• Igpls3
• Igpls3e
• Igpls4
• Igpls4e
• Inj1
• Inj2
• Inj3
• Inj4
• J/c c110 (middle of engine)
• J/c c111
• J/c c111 (middle oe engine)
• J/c c111 (middle of engine)
• Lg1
• Lg2
• Map
• Pg1
• Pg2
• Pnk
• Red
• Rvssw
• Sg1
• Sg2
• Sho2s
• So2shtc
• Tdc
• Tma
• Tmb
• Tps
• Transmission control module (behind right kick panel)
• Under- hood fuse/ relay
• Vbu
• Vcc1
• Vcc2
• Vss
• Vtec solenoid valve (left rear of engine)
• Vts

1.3L, Engine Performance Wiring Diagram, A/T (2 of 4) for Honda Civic LX 2003

List of elements for 1.3L, Engine Performance Wiring Diagram, A/T (2 of 4) for Honda Civic LX 2003:

• (behind glove box) a/f sensor relay
• (behind glove box) j/c c106
• (middle of eng) a/f sensor
• (middle of eng) evap canister purge valve
• (under left side of floor) evap by-pass solenoid valve
• (under right side of floor) evap canister vent shut valve
• A/f diode
• Box
• Braided wire
• Ect sensor (rear of eng)
• Eld unit
• Fuse 10a
• Fuse 20a
• G101 (top left side of eng)
• G301 (behind left side of front bumper)
• Hot in on or start
• Iat sensor (middle of engine)
• Ima circuit
• J/c c111 (middle of engine)
• J/c c106 (behind glove box)
• J/c c110 (middle of engine)
• J/c c111 (middle of engine)
• Knock sensor (left side of eng block)
• Map sensor (left side of eng compt)
• Pnk
• Power distribution system
• Red
• Secondary ho2s (middle of eng)
• Third ho2s (left side of eng compt)
• Tp sensor (on throttle body)
• Under- dash fuse/ relay
• Under- dash fuse/ relay box
• Under- hood fuse/ relay box

1.3L, Engine Performance Wiring Diagram, A/T (3 of 4) for Honda Civic LX 2003

List of elements for 1.3L, Engine Performance Wiring Diagram, A/T (3 of 4) for Honda Civic LX 2003:

• (top left side of eng) g101
• (under gauge assembly) g501
• 7.5a
• A/c system
• A15
• A16
• A17
• A18
• A19
• A28
• Atp d
• Atp l
• Atp np
• Atp r
• Atp s
• B10
• B17
• B20
• Box
• C10
• C11
• C13
• C14
• Cvt speed sensor 2 (on transaxle housing)
• D10
• Dimming circuit
• Driver
• Ect
• Electronic power steering & instrument cluster systems
• Electronic power steering system
• Gauge assembly
• Hot in on or start
• Iat
• J/c c109 (middle of eng)
• J/c c109 (middle of engine)
• Map (pb)
• Mil ind
• Multiplex control unit
• Nep
• Pnk
• Red
• Rscd
• Tps
• Transmission control module (behind right kick panel)
• Transmission range switch (on transaxle housing)
• Under- dash fuse/ relay
• Vel2
• Vref

1.3L, Engine Performance Wiring Diagram, A/T (4 of 4) for Honda Civic LX 2003

List of elements for 1.3L, Engine Performance Wiring Diagram, A/T (4 of 4) for Honda Civic LX 2003:

• (under left sid eof dash) idle stop switch
• (under left side of dash) brake pedal position switch
• 2wbs
• A/c system
• Acc
• Acs
• Afshtcr
• Anti- theft system
• Anti-theft system
• Bksw
• Box
• Brake booster pressure sensor (left side of engine compt)
• C10
• C11
• C12
• C13
• C14
• C15
• C16
• C17
• C18
• C19
• C20
• C21
• C22
• Cooling fans system
• Dlc (under middle of dash)
• Dvc
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• E17
• E18
• E19
• E20
• E21
• E22
• E23
• E24
• E25
• E26
• E27
• E28
• E29
• E30
• E31
• Ecm (behind glove box)
• Eld
• Engrdy
• Eop sensor (top left rear of engine)
• Eot sensor (near oil filter)
• Ftp
• Fuel tank pressure sensor (under left side of floor)
• Fuse 15a
• G101 (top left side of eng)
• G501 (under gauge assembly)
• Hot at all times
• Hot in on or start
• Hrfanc
• Htrs
• Icm
• Idssw
• Ig1
• Igrtne
• Igrtni
• Ima circuit
• Imo fpr
• Imocd
• J/c c110
• K-line
• Lg3
• M/p mon
• Mil
• Mota
• Motb
• Mrly
• Nep
• P12
• Pnk
• Poil
• Rear ignition coils
• Red
• Rscd
• Scs
• Sg3
• Starting/ charging system
• Stc
• Sts
• Tho2s
• To2shtc
• Toil
• Transmissions system
• Under- dash fuse/ relay
• Under- hood fuse/ relay
• Vcc3
• Vref
• Vsv
• Wen

1.3L, Engine Performance Wiring Diagram, M/T (1 of 3) for Honda Civic LX 2003

List of elements for 1.3L, Engine Performance Wiring Diagram, M/T (1 of 3) for Honda Civic LX 2003:

• (behind glove box) j/c c106
• (behind glove box) pgm-fi main relay 1
• (in multi-fuse/relay box) pgm-fi main relay 2
• (top left side of eng) g101
• A/c, cooling fans systems
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• A19
• A20
• A21
• A22
• A23
• A24
• A25
• A26
• A27
• A28
• A29
• A30
• A31
• Afs (+)
• Afs (-)
• Afshtc (-)
• Afshtc +
• Altf
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• B17
• B18
• B19
• B20
• B21
• B22
• B23
• B24
• Box
• Ckp
• Ckp sensor (on front of eng)
• Clutch interlock switch (left side of dash)
• Cmp sensor (top rear of eng)
• Cooling fans system
• Ecm (behind glove box)
• Ect
• Egr
• Egr valve & egr valve position sensor (top rear of eng)
• Egrp
• Electonic power steering system
• Exterior lights system
• Fanc
• Front ignition coils
• Fuel injectors
• Fuel pump
• Fuel tank unit
• Fuse 15a
• G101
• G101 (top left side of eng)
• G401 (under gauge assembly)
• G551 (under front passenger's seat)
• Hot at all times
• Hot in on or start under- dash fuse/ relay box
• Iac valve (left rear of eng)
• Iacv
• Iat
• Icm
• Igp1
• Igp2
• Igpls1
• Igpls1e
• Igpls2
• Igpls2e
• Igpls3
• Igpls4
• Igpls4e
• Inj1
• Inj2
• Inj3
• Inj4
• J/c c110 (middle of engine)
• J/c c111 (middle oe engine)
• J/c c111 (middle of engine)
• Lg1
• Lg2
• Map
• Neutral position switch (on transaxle housing)
• Ntsw
• Pg1
• Pg2
• Red
• Rvssw
• Sg1
• Sg2
• Sho2s
• So2shtc
• Tdc
• Tps
• Under- hood fuse/ relay
• Vbu
• Vcc1
• Vcc2
• Vss
• Vtec solenoid valve (middle of eng)
• Vts

1.3L, Engine Performance Wiring Diagram, M/T (2 of 3) for Honda Civic LX 2003

List of elements for 1.3L, Engine Performance Wiring Diagram, M/T (2 of 3) for Honda Civic LX 2003:

• (behind glove box) a/f sensor relay
• (middle of eng) a/f sensor
• (middle of eng) evap canister purge valve
• (under left side of floor) evap by-pass solenoid valve
• (under right side of floor) evap canister vent shut valve
• A/f diode
• Box
• Braided
• Braided wire
• Ect sensor (rear of eng)
• Eld unit
• Fuse 10a
• Fuse 20a
• G101 (top left side of eng)
• G301 (behind left side of front bumper)
• Hot in on or start
• Iat sensor (middle of engine)
• Ima circuit
• J/c c111 (middle of engine)
• J/c c106 (behind glove box)
• J/c c110 (middle of engine)
• J/c c111 (middle of engine)
• Knock sensor (left side of eng block)
• Map sensor (left side of eng compt)
• Pnk
• Power distribution system
• Red
• Secondary ho2s (middle of eng)
• Third ho2s (left side of eng compt)
• Tp sensor (on throttle body)
• Under- dash fuse/ relay
• Under- dash fuse/ relay box
• Under- hood fuse/ relay box

1.3L, Engine Performance Wiring Diagram, M/T (3 of 3) for Honda Civic LX 2003

List of elements for 1.3L, Engine Performance Wiring Diagram, M/T (3 of 3) for Honda Civic LX 2003:

• (transmission housing) vss
• (under gauge assembly) g501
• (under left side of dash) brake pedal position switch
• 2wbs
• A/c system
• A17
• Acc
• Acs
• Afshtcr
• Anti- theft system
• Anti-theft system
• B17
• Bksw
• Box
• Brake booster pressure sensor (left side of engine compt)
• C10
• C11
• C12
• C13
• C14
• C15
• C16
• C17
• C18
• C19
• C20
• C21
• C22
• Cooling fans system
• Cruise control, a/c & electronic power steering systems
• Cylout
• Dimming circuit
• Dlc (under left side of dash)
• Dvc
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• E17
• E18
• E19
• E20
• E21
• E22
• E23
• E25
• E26
• E27
• E28
• E29
• E30
• E31
• Ecm (behind glove box)
• Eld
• Engrdy
• Eop sensor (top left rear of engine)
• Eot sensor (near oil filter)
• Ftp
• Fuel tank pressure sensor (under left side of floor)
• Fuse 15a
• Fuse 7.5a
• G101 (top left side of eng)
• G101 (top left side of engine)
• Gauge assembly
• Hot at all times
• Hot in on or start
• Hrfanc
• Htrs
• Icm
• Ig1
• Igrtne
• Igrtni
• Ima circuit
• Imo fpr
• Imocd
• Instrument cluster system
• J/c c110 (middle of engine)
• J/c c103 (on cylinder head cover)
• J/c c106 (behind glove box)
• K-line
• Lg3
• M/p mon
• Mil
• Mil ind
• Mota
• Motb
• Mrly
• Nep
• P12
• Pnk
• Poil
• Rear ignition coils
• Red
• Rscd
• Scs
• Sg3
• Starting/ charging system
• Stc
• Sts
• Tho2s
• To2shtc
• Toil
• Under- dash fuse/ relay
• Under- hood fuse/ relay
• Vcc3
• Vsv
• Wen

1.7L

1.7L, Engine Performance Wiring Diagram, Except HX & GX (1 of 3) for Honda Civic LX 2003

List of elements for 1.7L, Engine Performance Wiring Diagram, Except HX & GX (1 of 3) for Honda Civic LX 2003:

• (behind glove box) j/c c102
• (behind glove box) pgm-fi main relay 1
• (behind glove box) pgm-fi main relay 2
• (top right rear of eng) g101
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• A19
• A20
• A21
• A22
• A23
• A24
• A25
• A26
• A27
• A28
• A29
• A30
• A31
• Altc
• Altf
• Altl
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• B17
• B18
• B19
• B20
• B21
• B22
• B23
• B24
• Box
• Ckp
• Ckp sensor (on front of eng)
• Cooling fans system
• Ecm/pcm (behind glove box)
• Ect
• Egr
• Egr valve & egr valve position sensor (ex) (middle (rear
• Egrp
• Fanc
• Fuel injectors
• Fuel pump
• Fuel tank unit
• Fuse 15a
• G101 (top right rear of eng)
• G551 (under front passenger's seat)
• Hot at all times
• Hot in on or start
• Iac valve (middle of eng)
• Iacv
• Iat
• Icm
• Ignition coils
• Igp1
• Igp2
• Igpls1
• Igpls2
• Igpls3
• Igpls4
• Immobilizer control unit receiver
• Inj1
• Inj2
• Inj3
• Inj4
• J/c c103 (on cylinder head cover)
• J/c c104 (on cylinder head cover)
• Lg1
• Lg2
• Lsa+
• Lsb+
• Map
• Pg1
• Pg2
• Pho2s
• Po2shtc
• Red
• Sg1
• Sg2
• Sho2s
• So2shtc
• Starting/ charging system
• Tdc
• Tdc sensor (on front of eng)
• Tps
• Under- dash fuse/ relay box
• Under- hood fuse/ relay
• Vbu
• Vcc1
• Vcc2
• Vccr
• Vss
• Vtec solenoid valve (ex) (left rear of eng)
• Vtpsw
• Vts

1.7L, Engine Performance Wiring Diagram, Except HX & GX (2 of 3) for Honda Civic LX 2003

List of elements for 1.7L, Engine Performance Wiring Diagram, Except HX & GX (2 of 3) for Honda Civic LX 2003:

• (middle of eng, near throttle body) evap canister purge valve
• (not used except ex)
• (not used)
• (transmission housing) shift solenoid valve a & b
• (transmission housing) tcc solenoid valve
• (transmission housing) vss
• (under left side of dash) evap canister vent shut valve
• (under left side of floor) evap by-pass solenoid valve
• A/t clutch pressure control solenoid valves (transmission housing)
• Braided wire
• Cruise control & instrument cluster systems
• Dx/lx
• Ect sensor (middle of eng)
• Eld unit (usa only)
• Fuse 10a
• G101 (top right rear of eng)
• G201 (behind right side of front bumper)
• Hot in on or start
• Iat sensor (left side of eng compt)
• J/c c102 (behind glove box)
• J/c c103 (on cylinder head cover)
• J/c c104 (on cylinder head cover)
• Knock sensor (left side of eng compt)
• Map sensor (left side of eng compt)
• Pnk
• Power distribution system
• Primary ho2s (middle of eng)
• Secondary ho2s (middle of eng)
• Tp sensor (on throttle body)
• Under- dash fuse/ relay box
• Under- hood fuse/ relay box
• Vtec oil pressure switch (middle of eng)

1.7L, Engine Performance Wiring Diagram, Except HX & GX (3 of 3) for Honda Civic LX 2003

List of elements for 1.7L, Engine Performance Wiring Diagram, Except HX & GX (3 of 3) for Honda Civic LX 2003:

• (ex only)
• (not used for canada)
• (top right rear of eng) g101
• (under gauge assembly) g501
• 2wbs
• A/t reverse relay
• A11
• A15
• A16
• A17
• Acc
• Air conditioning system
• Ant-theft system
• Atp2
• Atpd3
• Atpd4
• Atpfwd
• Atpnp
• Atpr
• B11
• B17
• B21
• Bksw
• Box
• Braided wire
• Brake pedal position switch (under left side of dash)
• C10
• C11
• C12
• C13
• C14
• C15
• C16
• C17
• C18
• C19
• C20
• C21
• C22
• Countershaft speed sensor (transmission housing)
• Crs
• Cruise control syetm
• Cruise control system
• D10
• Dimming circuit
• Dlc (under middle of dash)
• Driver
• Dx only
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• E17
• E18
• E19
• E20
• E21
• E22
• E23
• E24
• E25
• E26
• E27
• E28
• E29
• E30
• E31
• Ecm/pcm (behind glove box)
• Eld
• Ftp
• Fuel tank pressure sensor (under left side of floor)
• Fuse 15a
• Fuse 7.5a
• G101 (top right rear of eng)
• G201 (behind right side of front bumper)
• Gauge assembly
• Hot at all times
• Hot in on or start
• Ig1
• Ilu
• Immobilizer control unit receiver
• Imo fpr
• Imocd
• J/c c102 (behind glove box)
• K-line
• Lg3
• Lsa-
• Lsb-
• Lx, ex
• Mainshaft speed sensor (transmission housing)
• Mil
• Mil ind
• Mrly
• Multiplex control unit
• Ncsg
• Nmsg
• Pnk
• Psp switch (left side of eng compt)
• Pspsw
• Red
• Scs
• Sefmj
• Sg3
• Sha
• Shb
• So2s
• So2shtc
• Starter cut relay
• Transmission range switch (transmission housing)
• Under- dash fuse/ relay
• Under- hood fuse/ relay
• Vcc3
• Vsv
• Wen input

1.7L, Engine Performance Wiring Diagram, GX (1 of 3) for Honda Civic LX 2003

List of elements for 1.7L, Engine Performance Wiring Diagram, GX (1 of 3) for Honda Civic LX 2003:

• (behind glove box) injector relay
• (behind glove box) j/c c102
• (behind glove box) pgm-fi main relay 1
• (behind glove box) pgm-fi main relay 2
• (top right rear of eng) g101
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• A19
• A20
• A21
• A22
• A23
• A24
• A25
• A26
• A27
• A28
• A29
• A30
• A31
• Altc
• Altf
• Altl
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• B17
• B18
• B19
• B20
• B21
• B22
• B23
• B24
• Box
• Ckp
• Ckp sensor (on front of eng)
• Cooling fans system
• Ect
• Fanc
• Fuel injectors
• Fuse 15a
• G101 (top right rear of eng)
• Hlc ls +
• Hot at all times
• Hot in on or start
• Iac valve (middle of eng)
• Iacv
• Iat
• Icm
• Ignition coils
• Igp1
• Igp2
• Igpls1
• Igpls2
• Igpls3
• Igpls4
• Immo- bilizer control unit receiver
• Inj mode
• Inj1
• Inj2
• Inj3
• Inj4
• J/c c103 (on cylinder head cover)
• J/c c104 (on cylinder head cover)
• Lg1
• Lg2
• Map
• Pcm (behind glove box)
• Pg1
• Pg2
• Red
• Sc ls +
• Sg1
• Sg2
• Sh ls +
• Starting/ charging system
• Tdc
• Tdc sensor (on front of eng)
• Tps
• Under- dash fuse/ relay box
• Under- hood fuse/ relay
• Vcc1
• Vcc2
• Vel2

1.7L, Engine Performance Wiring Diagram, GX (2 of 3) for Honda Civic LX 2003

List of elements for 1.7L, Engine Performance Wiring Diagram, GX (2 of 3) for Honda Civic LX 2003:

• (left side of trunk) fuel tank internal solenoid valve
• (not used)
• (righ side of eng compt) fuel pressure regultor shut- off solenoid valve
• (under front passenger's seat) injector control module
• (usa only) eld unit
• Ect sensor (middle of eng)
• Ftp sensor (behind rear seat)
• Ftt sensor (behind rear seat)
• Fuel pressure regulator switch (right side of eng compt)
• Fuel pressure regultor leak check connector (right front of eng compt)
• Fuel temper- ature sensor (behind rear seat)
• Fuse 10a
• G101 (top right rear of eng)
• G201 (behind right side of front bumper)
• G551 (under front passenger's seat)
• Hot in on or start
• Iat sensor (left side of eng compt)
• J/c c103 (on cylinder head cover)
• Map sensor (left side of eng compt)
• Pnk
• Power distribution system
• Red
• Tp sensor (on throttle body)
• Under- dash fuse/ relay box
• Under- hood fuse/ relay box

1.7L, Engine Performance Wiring Diagram, GX (3 of 3) for Honda Civic LX 2003

List of elements for 1.7L, Engine Performance Wiring Diagram, GX (3 of 3) for Honda Civic LX 2003:

• (behind glove box)
• (not used for canada)
• (top right rear of eng) g101
• (transmission housing)
• (transmission housing) cvt control valves & inhitor solenoid
• (under gauge assembly) g501
• A/t reverse relay
• A16
• A17
• Acc
• Air condi- tioning system
• Anti-theft system
• Atpd4
• Atpfwd
• Atpl
• Atpnp
• Atpr
• Atps
• B11
• B21
• Bksw
• Box
• Brake pedal position switch (under left side of dash)
• C10
• C11
• C12
• C13
• C14
• C15
• C16
• C17
• C18
• C19
• C20
• C21
• C22
• Crs
• Cruise control syetm
• Cruise control sysemt
• Cruise control system
• Cvt drive pulley speed sensor
• Cvt driven pulley speed sensor
• Cvt speed change
• Cvt speed sensor
• D10
• Dimming circuit
• Dlc (under middle of dash)
• Driver
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• E17
• E18
• E19
• E20
• E21
• E22
• E23
• E24
• E25
• E26
• E27
• E28
• E29
• E30
• E31
• Eld
• Ftp
• Fuel tank pressure sensor (under left side of floor)
• Fuse 15a
• Fuse 7.5a
• G101 (top right rear of eng)
• G201 (behind right side of front bumper)
• Gauge assembly
• Hlcls (+)
• Hot at all times
• Hot in on or start
• Ig1
• Ilu
• Imo fpr
• Imocd
• Inhsol
• J/c c102
• J/c c102 (behind glove box)
• K-line
• Lg3
• Mil
• Mil ind
• Mrly
• Multiplex control unit
• Ncsg
• Ndn
• Ndr
• P1sw
• Pcm (behind glove box)
• Pfo
• Pnk
• Pressure cvt pulley
• Pressure cvt start
• Psp switch (left side of eng compt)
• Pspsw
• Red
• Scls (-)
• Scs
• Sefmj
• Sg3
• Shls (-)
• Solenoid inhitor
• Starter cut relay
• Tf2
• Tfo
• Transmission range switch (transmission housing)
• Under- dash fuse/ relay
• Under- hood fuse/ relay
• Vcc3
• Vel1

1.7L, Engine Performance Wiring Diagram, HX A/T (1 of 3) for Honda Civic LX 2003

List of elements for 1.7L, Engine Performance Wiring Diagram, HX A/T (1 of 3) for Honda Civic LX 2003:

• (behind glove box) j/c c102
• (behind glove box) pgm-fi main relay 1
• (behind glove box) pgm-fi main relay 2
• (top right rear of eng) g101
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• A19
• A20
• A21
• A22
• A23
• A24
• A25
• A26
• A27
• A28
• A29
• A30
• A31
• Afs -
• Afshtc (-)
• Afshtc +
• Altc
• Altf
• Altl
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• B17
• B18
• B19
• B20
• B21
• B22
• B23
• B24
• Box
• Ckp
• Ckp sensor (on front of eng)
• Cooling fans system
• Ect
• Egr
• Egr valve & egr valve position sensor (rear of eng)
• Egrp
• Fanc
• Fuel injectors
• Fuel pump
• Fuel tank unit
• Fuse 15a
• G101 (top right rear of eng)
• G551 (under front passenger's seat)
• Hlc ls +
• Hot at all times
• Hot in on or start under- dash fuse/ relay box
• Iac valve (middle of eng)
• Iacv
• Iat
• Icm
• Ignition coils
• Igp1
• Igp2
• Igpls1
• Igpls2
• Igpls3
• Igpls4
• Immobilizer control unit receiver
• Inj1
• Inj2
• Inj3
• Inj4
• J/c c103 (on cylinder head cover)
• J/c c104 (on cylinder head cover)
• Lg1
• Lg2
• Map
• Pcm (behind glove box)
• Pg1
• Pg2
• Pho2s
• Red
• Sc ls +
• Sg1
• Sg2
• Sh ls +
• Sho2s
• So2shtc
• Starting/ charging system
• Tdc
• Tdc sensor (on front of eng)
• Tps
• Under- hood fuse/ relay
• Vbu
• Vcc1
• Vcc2
• Vccr
• Vel2
• Vtec solenoid valve (left rear of eng)
• Vtpsw
• Vts

1.7L, Engine Performance Wiring Diagram, HX A/T (2 of 3) for Honda Civic LX 2003

List of elements for 1.7L, Engine Performance Wiring Diagram, HX A/T (2 of 3) for Honda Civic LX 2003:

• (behind glove box) a/f sensor relay
• (middle of eng) a/f sensor
• (middle of eng, near throttle body) evap canister purge valve
• (not used)
• (under left side of dash) evap canister vent shut valve
• (under left side of floor) evap by-pass solenoid valve
• (usa only) eld unit
• Box
• Braided wire
• Ect sensor (middle of eng)
• Fuse 10a
• Fuse 20a
• G101 (top right rear of eng)
• G201 (behind right side of front bumper)
• Hot in on or start
• Iat sensor (left side of eng compt)
• J/c c102 (behind glove box)
• J/c c103 (on cylinder head cover)
• J/c c104 (on cylinder head cover)
• Knock sensor (left side of eng compt)
• Map sensor (left side of eng compt)
• Pnk
• Power distribution system
• Primary ho2s (middle of eng)
• Red
• Secondary ho2s (middle of eng)
• Tp sensor (on throttle body)
• Under- dash fuse/ relay
• Under- dash fuse/ relay box
• Under- hood fuse/ relay box
• Vtec oil pressure switch (middle of eng)

1.7L, Engine Performance Wiring Diagram, HX A/T (3 of 3) for Honda Civic LX 2003

List of elements for 1.7L, Engine Performance Wiring Diagram, HX A/T (3 of 3) for Honda Civic LX 2003:

• (not used for canada)
• (top right rear of eng) g101
• (transmission housing)
• (transmission housing) cvt control valves & inhitor solenoid
• (under gauge assembly) g501
• 2wbs
• A11
• A15
• Acc
• Afshtor
• Air conditioning system
• Ant-theft system
• Atpd4
• Atpfwd
• Atpl
• Atpnp
• Atpr
• Atps
• B17
• Bksw
• Box
• Brake pedal position switch (under left side of dash)
• C10
• C11
• C12
• C13
• C14
• C15
• C16
• C17
• C18
• C19
• C20
• C21
• C22
• Computer data lines system
• Crs
• Cruise control syetm
• Cruise control system
• Cvt driven pulley speed sensor
• Cvt speed change
• Cvt speed sensor
• D10
• Dimming circuit
• Dlc (under middle of dash)
• Driver
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• E17
• E18
• E19
• E20
• E21
• E22
• E23
• E24
• E25
• E26
• E27
• E28
• E29
• E30
• E31
• Eld
• Ftp
• Fuel tank pressure sensor (under left side of floor)
• Fuse 15a
• Fuse 7.5a
• G101 (top right rear of eng)
• G201 (behind right side of front bumper)
• Gauge assembly
• Hlcls (+)
• Hot at all times
• Hot in on or start
• Ig1
• Ilu
• Imo fpr
• Imocd
• Inhsol
• J/c c102 (behind glove box)
• K-line
• Lg3
• Mil
• Mil ind
• Mrly
• Multiplex control unit
• Ncsg
• Ndn
• Ndr
• Pcm (behind glove box)
• Pnk
• Pressure cvt pulley
• Pressure cvt start
• Psp switch (left side of eng compt)
• Pspsw
• Red
• Scls (-)
• Scs
• Sefmj
• Sg3
• Shls (-)
• Solenoid inhitor
• Starter cut relay
• Tho2s
• To2shtc
• Transmission range switch (transmission housing)
• Under- dash fuse/ relay
• Under- hood fuse/ relay
• Vcc3
• Vel1
• Vssout
• Vsv

1.7L, Engine Performance Wiring Diagram, HX M/T (1 of 3) for Honda Civic LX 2003

List of elements for 1.7L, Engine Performance Wiring Diagram, HX M/T (1 of 3) for Honda Civic LX 2003:

• (behind glove box) j/c c102
• (behind glove box) pgm-fi main relay 1
• (behind glove box) pgm-fi main relay 2
• (top right rear of eng) g101
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• A19
• A20
• A21
• A22
• A23
• A24
• A25
• A26
• A27
• A28
• A29
• A30
• A31
• Afs -
• Afshtc (-)
• Afshtc +
• Altc
• Altf
• Altl
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• B17
• B18
• B19
• B20
• B21
• B22
• B23
• B24
• Box
• Ckp
• Ckp sensor (on front of eng)
• Cooling fans system
• Ecm (behind glove box)
• Ect
• Egr
• Egr valve & egr valve position sensor (rear of eng)
• Egrp
• Fanc
• Fuel injectors
• Fuel pump
• Fuel tank unit
• Fuse 15a
• G101 (top right rear of eng)
• G551 (under front passenger's seat)
• Hot at all times
• Hot in on or start under- dash fuse/ relay box
• Iac valve (middle of eng)
• Iacv
• Iat
• Icm
• Ignition coils
• Igp1
• Igp2
• Igpls1
• Igpls2
• Igpls3
• Igpls4
• Immobilizer control unit receiver
• Inj1
• Inj2
• Inj3
• Inj4
• J/c c103 (on cylinder head cover)
• J/c c104 (on cylinder head cover)
• Lg1
• Lg2
• Map
• Pg1
• Pg2
• Pho2s
• Red
• Sg1
• Sg2
• Sho2s
• So2shtc
• Starting/ charging system
• Tdc
• Tdc sensor (on front of eng)
• Tps
• Under- hood fuse/ relay
• Vbu
• Vcc1
• Vcc2
• Vccr
• Vss
• Vtec solenoid valve (left rear of eng)
• Vtpsw
• Vts

1.7L, Engine Performance Wiring Diagram, HX M/T (2 of 3) for Honda Civic LX 2003

List of elements for 1.7L, Engine Performance Wiring Diagram, HX M/T (2 of 3) for Honda Civic LX 2003:

• (behind glove box) a/f sensor relay
• (middle of eng) a/f sensor
• (middle of eng, near throttle body) evap canister purge valve
• (not used)
• (under left side of dash) evap canister vent shut valve
• (under left side of floor) evap by-pass solenoid valve
• (usa only) eld unit
• Box
• Braided wire
• Ect sensor (middle of eng)
• Fuse 10a
• Fuse 20a
• G101 (top right rear of eng)
• G201 (behind right side of front bumper)
• Hot in on or start
• Iat sensor (left side of eng compt)
• J/c c102 (behind glove box)
• J/c c103 (on cylinder head cover)
• J/c c104 (on cylinder head cover)
• Knock sensor (left side of eng compt)
• Map sensor (left side of eng compt)
• Pnk
• Power distribution system
• Primary ho2s (middle of eng)
• Red
• Secondary ho2s (middle of eng)
• Tp sensor (on throttle body)
• Under- dash fuse/ relay
• Under- dash fuse/ relay box
• Under- hood fuse/ relay box
• Vtec oil pressure switch (middle of eng)

1.7L, Engine Performance Wiring Diagram, HX M/T (3 of 3) for Honda Civic LX 2003

List of elements for 1.7L, Engine Performance Wiring Diagram, HX M/T (3 of 3) for Honda Civic LX 2003:

• (not used for canada)
• (transmission housing) vss
• (under gauge assembly) g501
• 2wbs
• A11
• A15
• Acc
• Afshtor
• Air conditioning system
• Anti-theft system
• Bksw
• Box
• Brake pedal position switch (under left side of dash)
• Computer data lines system
• Cruise control & instrument cluster systems
• Dimming circuit
• Dlc (under middle of dash)
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• E17
• E18
• E19
• E20
• E21
• E22
• E23
• E24
• E25
• E26
• E27
• E28
• E29
• E30
• E31
• Ecm (behind glove box)
• Eld
• Ftp
• Fuel tank pressure sensor (under left side of floor)
• Fuse 15a
• Fuse 7.5a
• G101 (top right rear of eng)
• G201 (behind right side of front bumper)
• Gauge assembly
• Hot at all times
• Hot in on or start
• Ig1
• Immobilizer control unit receiver
• Imo fpr
• Imocd
• J/c c102 (behind glove box)
• J/c c103 (on cylinder head cover)
• K-line
• Lg3
• Mil
• Mil ind
• Mrly
• Multiplex control unit
• Pnk
• Psp switch (left side of eng compt)
• Pspsw
• Red
• Scs
• Sefmj
• Sg3
• Tho2s
• To2shtc
• Under- dash fuse/ relay
• Under- hood fuse/ relay
• Vcc3
• Vsv

2.0L

2.0L, Engine Performance Wiring Diagram (1 of 3) for Honda Civic LX 2003

List of elements for 2.0L, Engine Performance Wiring Diagram (1 of 3) for Honda Civic LX 2003:

• (behind glove box) pgm-fi main relay 1
• (behind glove box) pgm-fi main relay 2
• (front of engine) vtc oil control solenoid valve
• (middle of eng) g101
• A10
• A11
• A12
• A13
• A14
• A15
• A16
• A17
• A18
• A19
• A20
• A21
• A22
• A23
• A24
• A25
• A26
• A27
• A28
• A29
• A30
• A31
• Afs -
• Afshtc (-)
• Afshtc +
• Altc
• Altf
• Altl
• B10
• B11
• B12
• B13
• B14
• B15
• B16
• B17
• B18
• B19
• B20
• B21
• B22
• B23
• B24
• Box
• Ckp
• Ckp sensor (on front of eng)
• Cmp
• Cooling fans system
• Ecm (behind glove box)
• Ect
• Fanc
• Fuel injectors
• Fuel pump
• Fuel tank unit
• Fuse 15a
• G101 (middle of eng)
• G551 (under front passenger's seat)
• Hot at all times
• Hot in on or start under- dash fuse/ relay box
• Iac valve (left side of eng)
• Iacv
• Iat
• Icm
• Ignition coils
• Igp1
• Igp2
• Igpls1
• Igpls2
• Igpls3
• Igpls4
• Immobilizer control unit receiver
• Inj1
• Inj2
• Inj3
• Inj4
• J/c c104 (left side of engine)
• Lg1
• Lg2
• Map
• Pg1
• Pg2
• Pho2s
• Red
• Sg1
• Sg2
• Starting/ charging system
• Tdc
• Tdc sensor (left side of eng)
• Tps
• Under- hood fuse/ relay
• Vbu
• Vcc1
• Vcc2
• Vss
• Vtc +
• Vtc -
• Vtec solenoid valve (right of eng)
• Vtpsw
• Vts

2.0L, Engine Performance Wiring Diagram (2 of 3) for Honda Civic LX 2003

List of elements for 2.0L, Engine Performance Wiring Diagram (2 of 3) for Honda Civic LX 2003:

• (middle of eng) a/f sensor
• (middle of eng, near throttle body) evap canister purge valve
• (not used)
• (under left side of floor) evap by-pass solenoid valve
• (under right rear of vehicle) evap canister vent shut valve
• (usa only) eld unit
• A/f sensor relay
• Box
• Braided
• Cmp sensor (left side of engine)
• Ect sensor (middle of eng)
• Fuse 10a
• Fuse 20a
• G101 (middle of eng)
• G201 (behind right side of front bumper)
• Hot in on or start
• Iat sensor (left side of eng compt)
• J/c c104 (left side of engine)
• Knock sensor (left side of eng compt)
• Map sensor (left side of eng compt)
• Pnk
• Power distribution system
• Secondary ho2s (middle of eng)
• Tp sensor (on throttle body)
• Under- dash fuse/ relay
• Under- dash fuse/ relay box
• Under- hood fuse/ relay box
• Vtec oil pressure switch (middle of eng)

2.0L, Engine Performance Wiring Diagram (3 of 3) for Honda Civic LX 2003

List of elements for 2.0L, Engine Performance Wiring Diagram (3 of 3) for Honda Civic LX 2003:

• (left front of engine compt) test tachometer connector
• (transmission housing) vss
• 2wbs
• Acc
• Afshtor
• Air conditioning system
• Anti-lock brake system
• Anti-theft system
• Bksw
• Box
• Braided
• Brake pedal position switch (under left side of dash)
• C17
• C19
• Computer data lines system
• Dlc (under left side of dash)
• E10
• E11
• E12
• E13
• E14
• E15
• E16
• E17
• E18
• E19
• E20
• E21
• E22
• E23
• E24
• E25
• E26
• E27
• E28
• E29
• E30
• E31
• Ecm (behind glove box)
• Eld
• Eps control unit (under right side of dash)
• Ftp
• Fuel tank pressure sensor (under left side of floor)
• Fuse 15a
• Fuse 7.5a
• G101 (middle of eng)
• Gauge assembly
• Hot at all times
• Hot in on or start
• Ig1
• Immobilizer control unit receiver
• Imo fpr
• Imocd
• J/c c103 (on cylinder head cover)
• K-line
• Lg3
• Mil
• Mil ind
• Mrly
• Multiplex control unit
• Nep
• Pnk
• Pspsw
• Red
• Scs
• Sefmj
• Sg3
• Sho2s
• So2shtc
• Tach input
• Under- dash fuse/ relay
• Under- hood fuse/ relay
• Vcc3
• Vsv
• Wen