ENGINE PERFORMANCE – Lexus IS 250 2006 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.5L

2.5L, Engine Performance Wiring Diagram (1 of 8) for Lexus IS 250 2006

List of elements for 2.5L, Engine Performance Wiring Diagram (1 of 8) for Lexus IS 250 2006:

• (behind left center of front bumper fascia) ambient temperature sensor
• (left side of eng compt) engine room r/b 2
• (or pnk)
• +b1
• 2wd
• 4wd
• A/c system
• Accelerator position sensor (under left side of dash)
• Accr
• Acmg
• Batt
• C/opn relay
• Canh
• Canl
• Cchg
• Ccs
• Computer data lines system
• Cooling fans system cruise control system
• Cruise control system
• Ctsw
• Efi 2 relay
• Efi fuse 25a
• Efi main relay
• Efii
• Efio
• Engine control module (left front of engine compt)
• Epa
• Epa2
• F/pmp fuse 25a
• Fan
• Fan2
• Fpr
• Heated oxygen sensor (bank 1 sensor 2) (on right side exhaust system)
• Heated oxygen sensor (bank 2 sensor 2) (on left side exhaust system)
• Hot at all times
• Ht1b
• Ht2b
• Id code box (behind center of dash)
• Igsw
• Imi
• Imo
• Irel
• Ksw
• Lgnd
• Mpmp
• Mrel
• Nca
• O1b-
• O2b-
• Ox1b
• Ox2b
• Pnk
• Power source control ecu (behind right side of dash)
• Ppmp
• Red
• Sftd
• Sftu
• Sksw
• Spd
• St1-
• Sta
• Starting/charging system
• Stp
• Stsw
• Tach
• Tam
• Vcp2
• Vcpa
• Vpa
• Vpa2
• Vpmp

2.5L, Engine Performance Wiring Diagram (2 of 8) for Lexus IS 250 2006

List of elements for 2.5L, Engine Performance Wiring Diagram (2 of 8) for Lexus IS 250 2006:

• (at left kick panel) j/c a29 & j10
• (forward of left rear wheel) fuel suction pump & gauge assembly
• (left side of eng compt) engine room r/b 2
• (right side of eng compt) fuel pump resistor
• A2 (left rear of engine compt)
• A29
• Canister closed valve
• Canister pump assembly (rear of vehicle)
• Efi 2 fuse 10a
• Etcs fuse 10a
• F/pmp relay
• Hot at all times
• Hot w/ ig 2 relay energized
• Ig2 fuse 10a
• J/c a7 & a8
• J/c a9
• J10
• Nca
• Pnk
• Pressure sensor
• Q1 (near left "b" pillar)
• Stop lamp switch
• Vvl+
• Vvl-
• Vvr+
• Vvr-
• Vvt sensor (bank 1 intake side) (right front of engine)
• Vvt sensor (bank 2 intake side) (front of left cylinder head)

2.5L, Engine Performance Wiring Diagram (3 of 8) for Lexus IS 250 2006

List of elements for 2.5L, Engine Performance Wiring Diagram (3 of 8) for Lexus IS 250 2006:

• (at right end of dash) cowl side j/b right
• +bm
• A/c system
• A10
• A24
• A25
• Camshaft timing oil control valve (right exhaust side) (on right cylinder head)
• Camshaft timing oil control valve (right intake side) (on right cylinder head)
• Crankshaft position sensor (left front of eng)
• D13
• E03
• E2 (right rear of eng)
• E3 oc1+
• Engine control module (left front of engine compt)
• Gauge fuse 7.5a
• Ge01
• Hot at all times
• Hot w/ ign 2 relay energized
• Hot w/ rh-ig1 relay energized
• Ign fuse 10a
• Igt2
• Igt5
• Igt6
• J/c j70 (behind right side of dash)
• J2 (under center console)
• J4 (right kick panel)
• Lck1
• Me01
• Nca
• Ne+
• Ne-
• Oc1-
• Oe1+
• Oe1-
• Pnk
• Prg
• Red
• Rh-ig fuse 7.5a
• Sftd
• Sftu
• Stj1
• Stop sw fuse 7.5a
• Transmission control switch
• Vcv2
• Vta1
• Vta2
• Vv1+
• Vv2+
• Vv2-

2.5L, Engine Performance Wiring Diagram (4 of 8) for Lexus IS 250 2006

List of elements for 2.5L, Engine Performance Wiring Diagram (4 of 8) for Lexus IS 250 2006:

• (behind left side of dash) j/c j27
• 2nd
• A10
• Body ecu (at right & left ends of dash)
• Combination meter
• Computer data lines system
• Cowl side j/b right
• Cruise control system
• D ind
• Dome fuse 10a
• E1 (left rear of engine compt)
• E1 j/c a10 & j/c e1 (left side of engine compt)
• Ect pwr ind
• Ect snow ind
• Efi
• Electronically controlled transmission pattern select switch
• Engine oil level sensor (near bottom of engine)
• Engine room r/b 1 (right rear of engine compt)
• Hot at all times
• Ig+
• J1 (left kick panel)
• J21
• J34
• J75 pwr
• Malfunction indicator lamp
• Master ind
• Mpx+
• Mpx-
• Mpx-b fuse 10a
• Mpx1
• Mpx2
• N ind
• Nca
• P ind
• Pnk
• Pwr
• R ind
• Red
• S ind
• Snow

2.5L, Engine Performance Wiring Diagram (5 of 8) for Lexus IS 250 2006

List of elements for 2.5L, Engine Performance Wiring Diagram (5 of 8) for Lexus IS 250 2006:

• (at rear of engine) engine coolant temperature sensor
• A/f fuse 15a
• A/f relay
• E2 (right rear of engine)
• Engine room r/b 2 (left side of eng compt)
• Gnd
• Hot at all times
• Igf1
• Igf2
• Ignition coil 1 (top of engine)
• Ignition coil 2 (top of engine)
• Ignition coil 3 (top of engine)
• Ignition coil 4 (top of engine)
• Ignition coil 5 (top of engine)
• Ignition coil 6 (top of engine)
• Igt1
• Igt2
• Igt3
• Igt4
• Igt5
• Igt6
• Inj fuse 20a
• Inj relay
• Nca
• Noise filter (ignition left) (left side of engine)
• Noise filter (ignition right) (right side of engine)
• Pnk
• Red
• Throttle body assembly

2.5L, Engine Performance Wiring Diagram (6 of 8) for Lexus IS 250 2006

List of elements for 2.5L, Engine Performance Wiring Diagram (6 of 8) for Lexus IS 250 2006:

• (front of engine compt) injector driver edu
• (front of engine) h1
• (front of engine) i1
• (left side of engine) fuel injector 2
• (left side of engine) fuel injector 4
• (left side of engine) fuel injector 6
• (right rear of engine compartment) spill control valve
• (right side of engine) fuel injector 1
• (right side of engine) fuel injector 3
• (right side of engine) fuel injector 5
• +b2
• A1a+
• A1a-
• A2a+
• A2a-
• Air fuel ratio sensor (bank 1 sensor 1) (right rear of engine)
• Air fuel ratio sensor (bank 2 sensor 1) (left rear of engine)
• E26
• E27
• Fp+
• Fp-
• Fpd
• Fpf1
• Fuel pressure sensor (at rear of engine)
• Ha1a
• Ha2a
• Ij1+
• Ij1-
• Ij2+
• Ij2-
• Ij3+
• Ij3-
• Ij4+
• Ij4-
• Ij5+
• Ij5-
• Ij6+
• Ij6-
• Injf
• Knock control sensor (bank 1) (top right side of engine)
• Knock control sensor (bank 2) (top left side of engine)
• Nca
• Pnk
• Red
• Swirl control valve actuator

2.5L, Engine Performance Wiring Diagram (7 of 8) for Lexus IS 250 2006

List of elements for 2.5L, Engine Performance Wiring Diagram (7 of 8) for Lexus IS 250 2006:

• (left rear of engine) cold start fuel injector
• (on transmission) park/neutral position switch
• A1a+
• A1a-
• A2a+
• A2a-
• E1 (left rear of engine)
• E2 (right rear of engine)
• E2x
• Engine control module (left front of eng compt)
• Eo4
• Eo5
• Ev2+
• Ev2-
• Ex+
• Ex-
• Fpd
• Fpf1
• Ha1a
• Ha2a
• Hot w/ lh-ig1 relay energized
• Ia1+
• Ia1-
• Iac1
• Injf
• Left cowl side j/b (at left end of dash)
• Lh-ig fuse 10a
• Pnk
• Red
• Swirl control valve sensor (at rear of engine)
• Vc2
• Vcx
• Vsx
• Vvt sensor (bank 2 exhaust side) (left rear of engine)

2.5L, Engine Performance Wiring Diagram (8 of 8) for Lexus IS 250 2006

List of elements for 2.5L, Engine Performance Wiring Diagram (8 of 8) for Lexus IS 250 2006:

• (at rear of engine) vsv (purge)
• (left side of engine compt) j/c e49
• (on left cylinder head) camshaft timing oil control valve (left exhaust side)
• (on left cylinder head) camshaft timing oil control valve (left intake side)
• (on left side of engine) vsv (acis)
• (right rear of engine) vvt sensor (bank 1 exhaust side)
• (right side of engine compartment) mass air flow meter
• Acis
• Alt
• E01
• E02
• E2g
• E47
• Ekn2
• Eknk
• Electronically controlled transmission solenoid (on transmission)
• Engine control module (left front of engine compt)
• Engine oil pressure switch (on front of engine)
• Eoil
• Ev1+
• Ev1-
• Ex+
• Ex-
• Igf1
• Igf2
• Igt1
• Igt3
• Igt4
• Knk1
• Knk2
• Mol
• Mops
• Nt+
• Nt-
• Oc2+
• Oc2-
• Oe2+
• Oe2-
• Oil
• Pnk
• Red
• Sl1+
• Sl1-
• Sl2+
• Sl2-
• Slt+
• Slt-
• Slu+
• Slu-
• Sp2+
• Sp2-
• Star
• Starting/ charging system
• Tha
• Thw
• Transmission revolution sensor (counter gear) (rear of trans)
• Transmission revolution sensor (turbine) (front of trans)
• Vc2