ENGINE PERFORMANCE – Lexus ES 300h 2014 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.5L HYBRID

2.5L Hybrid, Engine Controls Wiring Diagram (1 of 4) for Lexus ES 300h 2014

List of elements for 2.5L Hybrid, Engine Controls Wiring Diagram (1 of 4) for Lexus ES 300h 2014:

• +b2
• A22
• A31
• A33
• Ap1
• Batt
• C/opn relay
• C10
• Canh
• Canister pressure sensor
• Canister pump module (under left rear of vehicle)
• Canl
• Cann
• Canp
• Computer data lines system
• Cooling fans system
• D3 (rear of engine)
• D5 (top rear of engine)
• Da1
• Da2
• Ecm (engine control module) (left side of engine compt)
• Ecu- ig2 3 fuse 7.5a
• Efi 1 fuse 7.5a
• Efi 2 fuse 15a
• Efi 3 fuse 7.5a
• Efi main 2 relay
• Efi main relay
• Efi- main 1 fuse 30a
• Efi- main 2 fuse 20a
• Engine room j/b (left front of engine compt)
• Engine room r/b (left side of engine compt)
• Engine water pump assembly (right front of engine compt)
• Eppm
• G2o
• H1 (center of dash)
• Ha2
• Ha4
• Hot at all times
• Hybrid system circuit
• Ig 2 relay
• Ig2- main fuse 25a
• Ig2d
• Igsw
• Inj fuse 7.5a
• Integration control & panel assembly
• J/c a63 (behind left front headlight assembly)
• Leak detection pump
• Mgnd
• Mpmp
• Mrel
• Mtrb
• Normal
• Nwp
• Pgnd
• Pnk
• Power management control ecu (left end of dash)
• Ppmp
• Pwms
• Red
• Rfc
• Sgnd
• Spcn
• Sport
• Swp
• Tach
• Vcc
• Vcpp
• Vent valve
• Vgnd
• Vlvb
• Vout
• Vpmp
• Wpi
• Wpo

2.5L Hybrid, Engine Controls Wiring Diagram (2 of 4) for Lexus ES 300h 2014

List of elements for 2.5L Hybrid, Engine Controls Wiring Diagram (2 of 4) for Lexus ES 300h 2014:

• (fuel tank assembly) fuel suction tube w/ pump & gauge assembly
• (right rear of engine) vvt sensor (bank 1 intake side)
• (top of engine)
• 5v ic
• 5v+b
• A1 (behind left headlamp assembly)
• A17
• Ap1
• Can i/f
• Canh
• Canl
• Chk
• Combination meter assembly
• Computer data lines system
• Cpu
• D3 (rear of engine)
• D5 (top rear of engine)
• Da2
• Ecu- ig2 1 fuse 7.5a
• Eng w/ pmp fuse 30a
• Eng w/ pmp relay
• Engine room j/b (left front of engine compt)
• Engine room r/b (left side of engine compt)
• Etcs fuse 10a
• Gauge
• Gnd
• H14
• H4 (left side of dash)
• Ha2
• Hot at all times
• Hot w/ ig2 relay energized
• I/f
• Ig+
• Igf
• Ign fuse 15a
• Ignition coil 1
• Ignition coil 2
• Ignition coil 3
• Ignition coil 4
• Igt1
• Igt2
• Igt3
• Igt4
• Instrument cluster system
• Instrument panel j/b (left end of dash)
• J/c h106 (right side of dash)
• J/c h107 (behind instrument cluster)
• P1 (base of left "c" pillar)
• Pnk
• Pump
• Red
• Vvi+
• Vvi-

2.5L Hybrid, Engine Controls Wiring Diagram (3 of 4) for Lexus ES 300h 2014

List of elements for 2.5L Hybrid, Engine Controls Wiring Diagram (3 of 4) for Lexus ES 300h 2014:

• (accelerator pedal) accelerator pedal sensor assembly
• (left rear of engine compt) purge vsv (vacuum switching valve sub-assembly)
• (right side of engine) egr valve assembly
• (top of engine)
• +b1
• +b2
• +bm
• A33
• Ca1h
• Ca1l
• Computer data lines system
• D24
• Da2
• Df1
• E01
• E02
• E04
• Ecm (engine control module) (left side of engine compt)
• Egr1
• Egr2
• Egr3
• Egr4
• Engine oil pressure switch (left front of engine)
• Ep1
• Ep2
• Fuel injector 1
• Fuel injector 2
• Fuel injector 3
• Fuel injector 4
• Ge01
• Ha1a
• Ha2
• Ht1b
• Igf1
• Igt1
• Igt2
• Igt3
• Igt4
• Me01
• Power management control ecu (left end of dash)
• Prg
• Red
• Vcp1
• Vcp2
• Vpa1
• Vpa2

2.5L Hybrid, Engine Controls Wiring Diagram (4 of 4) for Lexus ES 300h 2014

List of elements for 2.5L Hybrid, Engine Controls Wiring Diagram (4 of 4) for Lexus ES 300h 2014:

• (air intake duct) intake mass air flow meter
• (lower left front of engine) crank position sensor
• (right front of engine) camshaft timing oil control valve assembly (bank 1 intake side)
• (right side of engine) efi vacuum sensor assembly
• (top rear of engine) efi engine coolant temperature sensor
• A1a+
• A1a-
• Air fuel ratio sensor (bank 1 sensor 1) (left rear of engine)
• D24
• D5 (top rear of engine)
• Da3
• E2g
• Ecm (engine control module) (left side of engine compt)
• Eknk
• Epim
• Eta
• Etha
• Ethw
• Ex1b
• Ha1a
• Ht1b
• Ic1
• Ic2
• Knk1
• Knock control sensor (bank 1) (top of engine)
• Ne+
• Ne-
• Oc1+
• Oc1-
• Ox1b
• Oxygen sensor (bank 1 sensor 2) (in exhaust, after catalytic converter)
• Pim
• Pnk
• Red
• Shield
• Tha
• Throttle body w/ motor (intake manifold)
• Thw
• Vcpm
• Vcta
• Vcv1
• Vta
• Vta1
• Vta2
• Vv1+
• Vv1-

2.5L Hybrid, Hybrid System Wiring Diagram (1 of 7) for Lexus ES 300h 2014

List of elements for 2.5L Hybrid, Hybrid System Wiring Diagram (1 of 7) for Lexus ES 300h 2014:

• (left side of dash)
• +b2
• 5v ic
• 5v+b
• A17
• A31
• A4 (behind right headlamp assembly)
• Air conditioning system
• Batt fan fuse 7.5a
• Batt vl ssr fuse 10a
• Ca1h
• Ca1l
• Can i/f
• Canh
• Canl
• Chk
• Clk
• Combination meter assembly
• Computer data lines system
• Cpu
• Dc/dc igct fuse 10a
• Display driver
• Ecu ig2 1 fuse 7.5a
• Ecu-b 1 fuse 10a
• Engine room r/b (left side of engine compt)
• Engine room r/b 2 (right rear of engine compt)
• Eti
• Exterior lights system
• Gmt
• Gmtg
• H114
• H14
• Ha2
• Ha8
• Hot at all times
• Hot w/ ig2 relay energized
• I/f
• Ig+
• Igct relay
• Igct- main fuse 25a
• Ilk
• Instrument panel j/b (left end of dash)
• Inv fuse 7.5a
• Inv w/ pmp rly fuse 7.5a
• Ite
• Iwp
• J/c h107 (behind instrument cluster)
• J/c h114 & h115 (behind instrument h115 cluster)
• Led driver
• Mmt
• Mmtg
• Niwp
• Nodd
• Pm igct fuse 7.5a
• Pnk
• Power management control ecu (left end of dash)
• Red
• Sio
• Skid control ecu w/ actuator (brake booster w/ master cylinder assembly) (left rear of engine compt)
• Sp1
• Speaker
• Stb
• Stp
• Telltales
• Vlo

2.5L Hybrid, Hybrid System Wiring Diagram (2 of 7) for Lexus ES 300h 2014

List of elements for 2.5L Hybrid, Hybrid System Wiring Diagram (2 of 7) for Lexus ES 300h 2014:

• +bwp
• A/c amplifier (right side of dash)
• A4 (behind right headlamp assembly)
• Agnd
• Antenna coil
• Ap3
• Battery thermometer sensor (on battery)
• Canh
• Canl
• Code
• Computer data lines system
• Ecos
• Engine room r/b 2 (right rear of engine compt)
• Gnd
• H54
• Hot at all times
• Hq2
• Ilk
• Interlock switch (service plug grip) (in hv battery assembly)
• Inv w/ pmp fuse 15a
• Inv w/ pmp relay
• Inverter water pump assembly (right front of engine compt)
• Nwp
• Pnk
• Power switch
• Pu2
• Pg1
• Red
• Ss1
• Ss2
• Swil
• Swp
• Txct
• U1 (left rear of luggage compt)
• Vc5

2.5L Hybrid, Hybrid System Wiring Diagram (3 of 7) for Lexus ES 300h 2014

List of elements for 2.5L Hybrid, Hybrid System Wiring Diagram (3 of 7) for Lexus ES 300h 2014:

• (behind left front headlight assembly) j/c a63
• (left side of engine compt) inverter w/ converter assembly
• +b2
• A14
• A33
• A35
• Abfs
• Acpb
• Acpe
• Agnd
• Air conditioning system
• Am2 fuse 7.5a
• Am22
• Bth+
• Bth-
• Ca2h
• Ca2l
• Canh
• Canl
• Certification ecu (right side of dash)
• Clk+
• Clk-
• Code
• Computer data lines system
• D16
• Dc/dc-s fuse 7.5a
• Drn1
• Drn2
• Drn3
• Drn4
• Drn5
• Drn8
• E01
• Engine room r/b (left side of engine compt)
• Ethb
• Evsw
• Gnd1
• Gnd2
• H1 (center of dash)
• H3 (left side of dash)
• H4 (left side of dash)
• H57
• H58
• Hot at all times
• Hp1
• Hsdn
• Htm+
• Htm-
• Ilki
• Ilko
• Instrument panel j/b (left end of dash)
• Mth+
• Mth-
• Pnk
• Power management control ecu (left end of dash)
• Red
• Req+
• Req-
• Shield
• Shift interlock system
• Smrb
• Smrg
• Smrp
• Spdi
• Ssw1
• Swil
• Thb
• Txct
• Vc5

2.5L Hybrid, Hybrid System Wiring Diagram (4 of 7) for Lexus ES 300h 2014

List of elements for 2.5L Hybrid, Hybrid System Wiring Diagram (4 of 7) for Lexus ES 300h 2014:

• (left side of engine compt) inverter w/ converter assembly
• A13
• Air conditioning system
• Amd
• Cbi
• Cei
• D11
• D12
• D14
• Da2
• Dc/dc fuse 120a
• Drn6
• Ecu
• Engine room j/b (left front of engine compt)
• Gcs
• Gcsg
• Gmt
• Gmtg
• Grf
• Grfg
• Gsn
• Gsng
• H1 (center of dash)
• Hot at all times
• Hybrid vehicle generator
• Hybrid vehicle motor
• Hybrid vehicle transaxle assembly
• Idh
• Igct
• Integration control & panel assembly
• Interior lights system
• Mcs
• Mcsg
• Mmt
• Mmtg
• Mrf
• Mrfg
• Mscg
• Msn
• Msng
• Nodd
• Pnk
• Red
• Shield
• Sw eco
• Sw mode ev
• Vlo

2.5L Hybrid, Hybrid System Wiring Diagram (5 of 7) for Lexus ES 300h 2014

List of elements for 2.5L Hybrid, Hybrid System Wiring Diagram (5 of 7) for Lexus ES 300h 2014:

• Ap3
• Battery cooling blower assembly (in hv battery assembly)
• Battery voltage sensor (left side of hv battery assembly)
• Bth+
• Bth-
• Busbar module
• Cbi
• Cei
• Current sensor
• D30
• Fp0
• From main relay 2 (diagram 5 of 7)
• Gb0
• Gb1
• Gb2
• Gbo
• Gc0
• Gib
• Gnd
• Gnd0
• Hot at all times
• Hq2
• Hybrid battery junction block assembly (right side of hv battery assembly)
• Hybrid vehicle battery
• Ig0
• Igct
• Instrument panel j/b (left end of dash)
• J/c u20 (left rear of luggage compt)
• Main relay 1
• Main relay 2
• P10
• Pnk
• Precharge relay
• Pu2
• Pg1
• Q1 (base of right "c" pillar)
• Red
• Service plug grip
• Si0
• Smrb
• Smrg
• Smrp
• Stop fuse 7.5a
• Tb0
• Tb1
• Tb2
• Tco
• Thermistor
• To hybrid vehicle battery (diagram 5 of 7)
• U1 (left rear of luggage compt)
• Vb1
• Vb10
• Vb11
• Vb12
• Vb13
• Vb14
• Vb15
• Vb16
• Vb17
• Vb2
• Vb3
• Vb4
• Vb5
• Vb6
• Vb7
• Vb8
• Vb9
• Vib

2.5L Hybrid, Hybrid System Wiring Diagram (6 of 7) for Lexus ES 300h 2014

List of elements for 2.5L Hybrid, Hybrid System Wiring Diagram (6 of 7) for Lexus ES 300h 2014:

• A22
• A61
• Ca2h
• Ca2l
• Canh
• Canl
• Computer data lines system
• Crank position sensor (lower left front of engine)
• D24
• D5 (top rear of engine)
• Da2
• Driving support ecu assembly (w/ dynamic radar cruise control) (right side of dash)
• Efi engine coolant temperature sensor (top rear of engine)
• Engine control module (ecm) (left side of engine compt)
• Engine room j/b (left front of engine compt)
• Eta
• Ethw
• F16
• G2o
• Ge01
• Gnd
• H105
• Ha2
• Ic1
• Ic2
• Integration relay
• J/c a61 & h105 (left kick panel)
• J/c a63 (behind left front headlight assembly)
• Ne+
• Ne-
• Pnk
• Red
• Sheild
• Shield
• St1-
• Stop light switch (top of brake pedal assembly)
• Stp-
• Stps
• Throttle body w/ motor (intake manifold)
• Thw
• Vcta
• Vta
• Vta1
• Vta2

2.5L Hybrid, Hybrid System Wiring Diagram (7 of 7) for Lexus ES 300h 2014

List of elements for 2.5L Hybrid, Hybrid System Wiring Diagram (7 of 7) for Lexus ES 300h 2014:

• (left side of dash) h4
• +b1
• A33
• A56
• Accd
• Accelerator pedal sensor (accelerator pedal)
• Am21
• Anti-theft system
• Ca1h
• Ca1l
• Ca3n
• Ca3p
• Ccs
• Clk+
• Clk-
• Computer data lines system
• Cruise control system
• D5 (top rear of engine)
• Da2
• Da3
• E02
• E12
• Ecu-ig1 1 fuse 10a
• Ecu-ig2 3 fuse 7.5a
• Engine room j/b (left front of engine compt)
• Ep1
• Ep2
• H114
• H115
• H3 (left side of dash)
• Ha2
• Hot w/ ig1 2 relay energized
• Hot w/ ig2 relay energized
• Hsdn
• Htm+
• Htm-
• Ig1d
• Ig2
• Ig2d
• Imi
• Imo
• Instrument panel j/b (left end of dash)
• J/c h114 & h115 (behind instrument cluster)
• Lin2
• Mrel
• Mth+
• Mth-
• Pnk
• Power distribution system
• Power management control ecu (left end of dash)
• Red
• Req+
• Req-
• Sftd
• Sftu
• Shift interlock system
• Shift lever position sensor (top of transaxle)
• Slp
• Slr+
• Ssw2
• St1-
• Stp
• Transmission control switch (base of shift lever assembly)
• Vcp1
• Vcp2
• Vpa1
• Vpa2