All Wiring Diagrams for Lexus IS 300 2001 model

AIR CONDITIONING

Automatic A/C Wiring Diagram for Lexus IS 300 2001

List of elements for Automatic A/C Wiring Diagram for Lexus IS 300 2001:

(behind
(below center of dash, behind center console) a/c control assembly
(dash harn, top center of dash)
(front side of intake manifold) g131
(left side of engine compt, near ecm) j/c 3
(rear of left front fender)
(rear of left front fender) g104
(right rear fenderwell) j/c 16
(right side of radiator) water temp switch
(under
A/c ambient temperature sensor (behind left side of bumper)
A/c comp relay
A/c condenser fan motor
A/c diode (behind right end of dash)
A/c magnetic clutch & lock sensor (left front of engine, on a/c compressor)
A/c room temperature sensor (behind lower left center of dash)
A/c solar sensor (top left side of dash)
A/c thermistor (behind upper left center of dash)
A/c triple pressure switch (left front of engine compt)
A10
A11
A12
A13
A14
Acc
Acmg
Air inlet control servo motor (behind upper right center of dash)
Air mix control servo motor (behind upper right center of dash)
Air vent mode control servo motor (behind upper right center of dash)
Amh
Aod
Aof
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
Blower motor (behind right side of dash)
Blower motor controller (behind right side of dash)
Blw
Cds fan fuse 30a
Computer data lines system
Driver side j/b (behind left end of dash)
Dual
Ecu-b fuse 10a
Ecu-ig fuse 10a
Engine control module (left front of engine compt)
Engine room r/b 1 (right rear of engine compt)
Engine room r/b 3 (left side of engine compt)
Exterior lights system
Fan
Fan 1 relay
Fan 2 relay
Fan 3 relay
Frs
G104
G201 (behind right end of dash)
G203
G203 (behind right kick panel)
G301
Gnd
H10
H12
Hazd
Heater fuse 40a
Hot at all times
Hot in on or acc
Hot in on or start
Htr relay
I12
Ill+
Ill-
Instrument cluster system
Interior lights system
J/c 1, j/c 2 (left side of engine compt, near ecm)
J/c 10 (behind right side of dash)
J/c 8 (behind right side of dash)
Lck1
Mpx+
Mpx-
Mpx-b fuse 10a
P-s/b
Passenger side j/b (behind right end of dash)
Pkb
Pnk
Pre
Pwr
Radiator fan motor
Radio 2 fuse 10a
Rdi fan fuse 30a
Rec
Red
Right front seat)
Right kick panel)
Single
Snow
Tam
Tpi
Tpm
Transmission system
Warning systems

ANTI-LOCK BRAKES

Anti-lock Brake Wiring Diagrams (1 of 2) for Lexus IS 300 2001

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List of elements for Anti-lock Brake Wiring Diagrams (1 of 2) for Lexus IS 300 2001:

A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
Abs & traction ecu (behind left end of dash)
Abs & traction actuator (right side of engine compt, forward of strut tower)
Abs fuse 60a
Abs motor relay
Abs sol relay
Ast
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
Engine room r/b 1 (right rear of engine compt)
Engine room r/b 2 (right rear of engine compt)
Fl+
Fl-
Fr+
Fr-
G202
G203 (behind right kick panel)
Gnd1
Hot at all times
J/c 5 (behind left end of dash)
Left front abs speed sensor
Pnk
Red
Right front abs speed sensor
Sflh
Sflr
Sfrh
Sfrr
Smc
Spc
Src
Srlh
Srlr
Srrh
Srrr

Anti-lock Brake Wiring Diagrams (2 of 2) for Lexus IS 300 2001

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List of elements for Anti-lock Brake Wiring Diagrams (2 of 2) for Lexus IS 300 2001:

A10
A18
A19
Abs & traction ecu (behind left end of dash)
Abs ind
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
Brake fluid level switch
Brake ind
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
C24
C25
C26
C27
C28
Combination meter
Csw
D/g
Data link connector 1 (left front of engine compt)
Data link connector 3 (behind lower left side of dash)
Driver side j/b (behind lower left end of dash)
Ecu-ig fuse 10a
Eng+
Eng-
Engine control module (left front of engine compt)
Fro
G104 (rear of left front fender)
G201 (lower center of dash)
G202
G203 (behind right kick panel)
Gauge fuse 10a
Gnd2
Gnd3
Headlight beam level control ecu (behind left end of dash)
Hot at or start
Hot in on or start
Ig1
Ind
Interior lights system
J/c 3 (left side of engine compt)
J/c 5 (behind left end of dash)
J/c 6 (behind left side of dash)
J/c 7 (behind upper right side of dash)
Lbl+
Lbl-
Left rear abs speed sensor
Neo
Parking brake switch (on brake lever)
Passenger side j/b (behind lower right end of dash)
Pkb
Pnk
Red
Right rear abs speed sensor
Rl+
Rl-
Rr+
Rr-
Slip ind
Sp1
Spdr
Speedo
Stop fuse 15a
Stoplight switch (on bracket, above brake pedal)
Stp
Trac off ind
Traction off switch
Trc+
Trc-

ANTI-THEFT

Anti-theft Wiring Diagram (1 of 3) for Lexus IS 300 2001

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List of elements for Anti-theft Wiring Diagram (1 of 3) for Lexus IS 300 2001:

(below center of rear window, on speaker shelf) wireless door lock control receiver
(exterior lights system)
A10
Acc
B10
B14
B15
B16
B19
Becu
Body ecu (behind lower left end of dash, integral with driver side junction block)
Bsub
Bzr
Bzr2
Dcty
Door fuse 20a
Driver side junction block (behind lower left end of dash)
Ecu-ig fuse 10a
Flasher relay
G202
Gnd2
Ground
Haz
Hot at all times
Hot in acc or run
Hot in run or start
I2 (dash splice, behind left side of dash)
Junction conenctor j/c 5 (behind left end of dash)
Junction connector j/c 12 (above left rear fenderwell)
Junction connector j/c 16 (above right rear fenderwell)
Junction connector j/c 6 (behind left side of dash, forward of instrument cluster)
Keyless buzzer (near top of left front wheelwell, inside fender)
L10
Left front door courtesy switch
Left rear door courtesy switch
Left rear door lock detection switch
Lgcy
Lsr
Lswp
Luggage compt door courtesy switch
Mpx1
Mpx2
Mpx3
Obd2
Pcty
Prg
Radio 2 fuse 10a
Rcty
Rda
Right front door courtesy switch
Right rear door courtesy switch
Tail relay

Anti-theft Wiring Diagram (2 of 3) for Lexus IS 300 2001

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List of elements for Anti-theft Wiring Diagram (2 of 3) for Lexus IS 300 2001:

(above left rear fenderwell) junction connector j/c 12
(in left front door) junction connector j/c 11
Alt fuse 120a
Bdm
Driver side junction block (behind lower left end of dash)
Efi fuse 25a
Efi relay
Engine room relay block 1 (on right rear of engine compt)
Engine room relay block 2 (on right rear of engine compt)
G203 (behind right kick panel)
G301 (under right front seat)
G414
Headlight relay
Headlights system
Horn fuse 10a
Horn relay
Horn system
Hot at all times
Junction connector j/c 15 (on left side of luggage compt, behind left fenderwell)
Junction connector j/c 16 (above right rear fenderwell)
Kul
Left front door key lock & unlock switch & door lock detection switch
Lock
Lock detect
Lswd
Luggage compartment door key unlock switch
Main fuse 40a
Power window master switch
Red
Right front door lock detection switch
Right rear door lock detection switch
Unlk

Anti-theft Wiring Diagram (3 of 3) for Lexus IS 300 2001

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List of elements for Anti-theft Wiring Diagram (3 of 3) for Lexus IS 300 2001:

(a12-a18 not used)
(a20-a21 not used)
(a5-a9 not used)
(b5-b6 not used)
(b9-b11 not used)
(dash splice, behind left side of dash) i2
+b1
+b2
A/c control assembly
A10
A11
A12
A13
A18
A19
A20
A21
A22
A23
B10
B12
Batt
C10
C27
C28
Code
Combination meter
Data link connector 3 (behind lower left side of dash)
Dome fuse 7.5a
Dswh
Ecu-b2 fuse 7.5a
Engine control module (on left front of engine compt, in protective case)
Engine hood courtesy switch (on front center of engine compt, near hood latch)
Eom
G10
G104 (rear of left front fender)
G11
G203 (behind right kick panel)
Ground
Head
Horn
Hot at all times
Hot in run & start
I11
Ign fuse 7.5a
Igsw
Imld
Ind
Junction connector j/c 6 (behind left side of dash)
Ksw
Lug
Mpx+
Mpx-
Mpx-b fuse 10a
Mpx1
Mpx2
Mrel
Passenger side junction block (behind lower right end of dash)
Pnk
Rxck
Security ind
Sh-
Tail
Theft deterrent ecu (behind left end of dash)
Theft deterrent horn (on left side of engine compt, on strut tower)
Transponder key amplifier (on steering column, near ignition)
Txct
Unlock warning switch

BODY COMPUTER

Body Computer Wiring Diagrams for Lexus IS 300 2001

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List of elements for Body Computer Wiring Diagrams for Lexus IS 300 2001:

A10
A11
A12
A13
A14
Acc
Act+
Act-
Actd
Anti-theft system
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
Bcty
Becu
Body ecu (behind lower left end of dash, integral with driver side j/b)
Bsub
Bzr
Bzr2
Computer data lines
Dbkl
Dclp
Dcty
Dfg
Door fuse 20a
Door locks system
Door locks system door locks system
Driver side j/b (behind lower left end of dash)
Driver side junction block (behind lower left end of dash)
Ecu-ig fuse 10a
Engine controls system
Exterior lights system
G202
Gnd
Gnd2
H10
Haz
Hot always
Hot at all times
Hot in acc or on
Hot in on or start
Hot with tail relay energized
I2 (dash harness, behind left side of dash)
Ile
Instrument cluster system
Interior lights system
J/c 5 (behind left end of dash)
Ksw
L10
Lgcy
Lsr
Lswp
Mpx-b fuse 10a
Mpx1
Mpx2
Mpx3
Obd2
Panel fuse 7.5a
Passenger side j/b (behind lower right end of dash)
Pclp
Pcty
Pml
Pmul
Power tops system
Power windows system
Prg
Radio 2 fuse 10a
Rcty
Rda
Red
Rld
Rlu
Rrd
Rru
Tail
Tr+
Trunk, tailgate & fuel door system
Warning systems

COMPUTER DATA LINES

Computer Data Lines for Lexus IS 300 2001

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List of elements for Computer Data Lines for Lexus IS 300 2001:

(front side of intake manifold) g131
(on left side of engine compt, near engine control module) j/c j3
(on left side of engine compt, near engine control module) j/c j4
(under right front seat) g301
A/c control assembly
A11
A12
A13
A18
A19
Abs & traction ecu (behind left end of dash)
B10
Bat
Body ecu
Center airbag assembly (below center of dash, on transmission tunnel)
Combination meter
D/g
Data link connector 1 (on left front of engine compt, forward of engine room r/b 3)
Data link connector 3 (behind lower left side of dash)
Driver side j/b
Driver side j/b (behind lower left end of dash)
Engine control module (on left front of engine compt, in protective case)
Engine controls system (efi relay)
G11
G131 (on side of intake manifold)
G203 (behind right kick panel)
Hot at all times
Igniter (on left side of engine compt, on strut tower)
J/c j16 (above right rear fenderwell)
Mpx+
Mpx-
Mpx1
Mpx2
Mpx3
Obd fuse 7.5a
Obd2
Passenger side j/b (behind lower right end of dash)
Power window master switch
Sil
Tac
Theft deterrent ecu (behind left end of dash)
Wfse

COOLING FAN

Cooling Fan Wiring Diagram for Lexus IS 300 2001

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List of elements for Cooling Fan Wiring Diagram for Lexus IS 300 2001:

A/c comp relay
A/c condenser fan motor
A/c control assembly (below center of dash, behind center console)
A/c diode (behind right end of dash)
A/c single pressure switch (left front of engine compt)
A12
A13
A14
Acc
Acmg
Cds fan fuse 30a
Computer data lines system
Driver side j/b (behind left end of dash)
Ecu-ig fuse 10a
Engine control module (ecm) (left front of engine compt)
Engine room r/b 1 (right rear of engine compt)
Engine room r/b 3 (left side of engine compt)
Fan
Fan 1 relay
Fan 2 relay
Fan 3 relay
G104 (rear of left front fender)
G203 (behind right kick panel)
G301 (under right front seat)
Gnd
H10
Hot at all times
Hot in on or acc
Hot in on or start
J/c 10 (behind right side of dash)
J/c 16 (right rear fenderwell)
J/c 3 (left side of engine compt, near ecm)
Mpx+
Mpx-
Mpx-b fuse 10a
Passenger side j/b (behind right end of dash)
Radiator fan motor
Radio 2 fuse 10a
Rdi fan fuse 30a
Water temperature switch (right side of radiator)

CRUISE CONTROL

Cruise Control Wiring Diagram (1 of 2) for Lexus IS 300 2001

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List of elements for Cruise Control Wiring Diagram (1 of 2) for Lexus IS 300 2001:

(engine harn, left front of engine compt) e4
(left front of engine compt) data link connector 1
(left side of engine compt)
+b2
+bm
Anti-theft system computer data lines system
B11
Batt
Ccs
Cl+
Cl-
Driver side j/b (behind lower left end of dash)
E01
E02
E03
Efi fuse 25a
Efi relay
Engine control module (on left front of engine compt, in protective case)
Engine room relay block 1 (right rear of engine compt)
Eom
Etcs fuse 15a
G104 (rear of left front fender)
G131 (front side of intake manifold)
G131 (on side of intake manifold)
G203 (behind right kick panel)
Gauge fuse 10a
Ge01
Hot at all times
Hot in on or start
Igsw
J/c 1
J/c 2
J/c 3 (left side of engine compt)
J/c 4 (left side of engine compt)
Me01
Mpx1
Mpx2
Mrel
Park/neutral position switch (on right side of transmission)
Passenger side j/b (behind lower right end of dash)
Red
Shielded
St1-
Stop fuse 15a
Stoplight switch (on brake pedal bracket)
Stp
Throttle control motor (on throttle body)
Transmission control switch (in shift lock control ecu)
Vpa
Vpa2
Vta
Vta2

Cruise Control Wiring Diagram (2 of 2) for Lexus IS 300 2001

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List of elements for Cruise Control Wiring Diagram (2 of 2) for Lexus IS 300 2001:

(behind lower left side of dash)
(engine harn, top left side of engine)
(left side of engine compt)
Accel position sensor (on center rear of engine, on throttle body)
Anti-lock brakes system
Anti-theft system
Bat
Cancel
Combination meter
Computer data lines system
Cruise
Cruise control switch
Cruise ind
Data link connector 3
Driver side j/b (behind lower left end of dash)
E10
G131 (on side of intake manifold)
G201 (lower left center of dash, forward of center floor console)
G203 (behind right kick panel)
G301 (under right front seat)
Hot at all times
Hot in on or start
Ign fuse 7.5a
J/c 1
J/c 16 (above right rear fenderwell)
J/c 2
J/c 7 (behind upper right side of dash)
Mpx-b fuse 10a
Obd fuse 7.5a
Passenger side j/b (behind lower right end of dash)
Res/acc
Set/coast
Speedometer
Throttle position sensor (on throttle body)

DEFOGGERS

Defogger Wiring Diagram for Lexus IS 300 2001

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List of elements for Defogger Wiring Diagram for Lexus IS 300 2001:

(rear of left front fender) g104
(under right front seat) g301
A12
A13
Alt fuse 120a
Body ecu
Case)
Combin -ation meter
Driver side junction block (behind lower left end of dash)
Engine room 1 relay block (on right rear of engine compt)
G202
G203 (behind right kick panel)
Gauge fuse 10a
H11
Hot at all times
Hot in on or start
J/c 11 (in left front door)
J/c 16 (above right rear fender- well)
J/c 5 (behind left end of dash)
K12
L10
Left mirror heater
Mir htr fuse 15a
Mir htr relay
Mpx+
Mpx-
Mpx1
Mpx2
Noise filter
Passanger side junction block (below lower right end of dash)
R11
R12
Rear window defogger
Rear window defogger switch
Right mirror heater
Rr def fuse 40a
Rr def relay
Theft deterent ecu (behind left end of dash)

ENGINE PERFORMANCE

3.0L

3.0L, Engine Performance Wiring Diagrams (1 of 5) for Lexus IS 300 2001

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List of elements for 3.0L, Engine Performance Wiring Diagrams (1 of 5) for Lexus IS 300 2001:

(on left side of engine compt, on strut tower) fuel pump resistor
+b2
+bm
A/c control assembly
A/c system
A/t shift main switch (integral to combination switch)
A12 snow
Acmg
Anti-theft system (engine immobilizer circuit)
Batt
Ccs
Circuit opening relay
Code
Computer data lines system
Cooling fans system
Cruise control system
Driver side j/b
Ecc
Efi fuse 25a
Electronically controlled transmission pattern select switch
Eng+
Eng-
Engine control module (ecm) (on left front of engine compt, in protective case)
Engine room r/b 1 (on right rear of engine compt)
Engine room r/b 3 (on left side of engine compt)
Eom
Etcs fuse 15a
Fan
Fpr
Fuel pump & sender (beneath left side of vehicle)
Fuel pump relay
G104 (rear of left front fender)
G203 (behind right kick panel)
G414
Hot at all times
Hot in on or start
Htl2
Htr2
Ign fuse 7.5a
Igsw
Imld
J/c 15 (behind left rear fenderwell)
Ksw
Mpx-
Mpx1
Mpx2
Mrel
Neo
Oxl2
Oxr2
Passenger side j/b (behind lower right end of dash)
Pnk
Pre
Ptnk
Pwr
Rxck
Sftd
Sftu
Sil
Snow
St1-
Sta
Stp
Tam
Tbp
Trc+
Trc-
Txct
Wfse

3.0L, Engine Performance Wiring Diagrams (2 of 5) for Lexus IS 300 2001

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List of elements for 3.0L, Engine Performance Wiring Diagrams (2 of 5) for Lexus IS 300 2001:

(behind left end of dash) abs & traction ecu
(behind lower lower right end of dash) passenger side j/b
(on left side of engine compt, near ecm) j/c 3
A18
A19
B11
Combination meter
Data link connector 1 (on left front of engine compt, near engine room r/b 3)
Data link connector 3 (behind lower left side of dash)
Driver side j/b (behind lower left end of dash)
E4 (engine harn, in ecu box)
Efi relay
Eng+
Eng-
Engine oil level sensor (on lower left front of engine)
Engine oil pressure switch (on left front of engine)
Engine room r/b 2 (on right rear of engine compt)
G131 (on side of intake manifold)
G203 (behind right kick panel)
Hot at all times
Hot in on or start
Hot in start
J/c 16 (above right rear fenderwell)
Level
Neo
Park/neutral position switch (on right side of transmission)
Passenger side j/b (behind lower right end of dash)
Pnk
Sil
Sp1
Starter fuse 7.5a
Stop fuse 15a
Stoplight switch (above brake pedal, on bracket)
Temp
Trc+
Trc-
Vsv (pressure switching valve) (beneath center rear of vehicle)
Wfse

3.0L, Engine Performance Wiring Diagrams (3 of 5) for Lexus IS 300 2001

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List of elements for 3.0L, Engine Performance Wiring Diagrams (3 of 5) for Lexus IS 300 2001:

(engine harn, left side of engine)
(on left side of engine compt, near ecm) j/c 1, j/c 2
(on right side of transmission) a/t indicator light switch (integral to park/neutral position switch)
Braided
Driver side j/b (behind lower left end of dash)
G131 (front side of intake manifold)
Gauge fuse 10a
Heated oxygen sensor (bank 1 sensor 1) (on right side of engine, on exhaust system)
Heated oxygen sensor (bank 1 sensor 2) (on right side of engine, on exhaust system)
Heated oxygen sensor (bank 2 sensor 1) (on right side of engine, on exhaust system)
Heated oxygen sensor (bank 2 sensor 2) (beneath vehicle, on exhaust system)
Hot in on or start
J/c 1, j/c 2 (near ecm)
J/c 7 (behind upper right side of dash)
Mt3
Nssd
Pnk
Transmission control switch (d-4) (integral to shift lock control ecu)
Transmission control switch (l-2)
Vsv (acis) (on left side of engine)
Vsv (evap) (on top rear of engine)

3.0L, Engine Performance Wiring Diagrams (4 of 5) for Lexus IS 300 2001

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List of elements for 3.0L, Engine Performance Wiring Diagrams (4 of 5) for Lexus IS 300 2001:

(beneath center rear of vehicle) vapor pressure sensor
(center rear of engine, on throttle body) accel position sensor
(engine harn, left side of engine)
(on left front of engine) engine coolant temperature sensor
(on left front of engine) power steering oil pressure sensor
(on left side of engine compt, near ecm) j/c 1, j/c 2
(on right front of engine) vsv (canister closed valve)
(on right side of engine compt, behind air box) mass airflow meter
(on throttle body) throttle position sensor
Braided
Camshaft timing oil control valve (on left front of cyl head)
E10
E10 (engine harn, left side of engine)
E8 (engine harn, left side of engine)
Fuel inj 1
Fuel inj 2
Fuel inj 3
Fuel inj 4
Fuel inj 5
Fuel inj 6
G131 (front side of intake manifold)
G131 (on side of intake manifold)
Gnd
Igf
Igniter (on left side of engine compt, on strut tower)
Ignition coil 1
Ignition coil 2
Ignition coil 3
In1
In2
In3
Noise filter (on left side of engine)
Pnk
Ptnk
Red
Tac
Vcc
Vout

3.0L, Engine Performance Wiring Diagrams (5 of 5) for Lexus IS 300 2001

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List of elements for 3.0L, Engine Performance Wiring Diagrams (5 of 5) for Lexus IS 300 2001:

(engine harn, left side of engine)
(on left rear of transmission) vehicle speed sensor
(on left side of transmission) o/d direct clutch speed sensor
A/c system
Acis
Braided
Camshaft position sensor (on left rear of cyl head)
Ccv
Charging system
Cl+
Cl-
Crankshaft position sensor (on right side of engine)
E01
E02
E03
E11
Electronically controlled transmission solenoid (on left side of transmission)
Engine control module (ecm) (on left front of engine compt, in protective case)
Evg
G131 (front side of intake manifold)
Ge01
Htl
Htr
Igf
Igt
Igt2
Igt3
J/c 4 (on left side of engine compt, near ecm)
Knk1
Knk2
Knock sensor 1 (on left front of engine block)
Knock sensor 2 (on left rear of engine block)
Lck1
Me01
Mol
Mops
Nco+
Nco-
Ne-
Ocv+
Ocv-
Oil
Oxl1
Oxr1
Pnk
Prg
Psp
Red
Sln+
Sln-
Slt+
Slt-
Slu+
Slu-
Sp2+
Sp2-
Tha
Throttle control motor (on throttle body)
Thw
Vpa
Vpa2
Vta
Vta2

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Lexus IS 300 2001

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List of elements for Back-up Lamps Wiring Diagram for Lexus IS 300 2001:

B/u
Back-up light switch (integral to park/ neutral position switch)
Driver side j/b (behind lower left end of dash)
G414
Gauge fuse 10a
Hot in on or start
I11
Junction connector j/c 15 (on left side of luggage compt)
Junction connector j1, j2 (left side of eng compt)
Left rear combination light
Right rear combination light

Exterior Lamps Wiring Diagram (1 of 2) for Lexus IS 300 2001

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List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Lexus IS 300 2001:

Alt fusible link 120a
Auto
C10
Combination meter
Combination switch
Driver side j/b (behind lower left end of dash)
Engine room j/b 1 (on right rear of engine compartment)
G414
Gauge fuse 10a
H13
Head
High mounted stop light
Hot at all times
Hot in on or start
I12
Junction connector (above left rear fender- well)
Junction connector (above left rear fenderwell)
Junction connector (left side of luggage compt)
Junction connector 3 (on left side of eng compt, near engine control module)
Junction connector j/c 15 (on left side of lugg compt, behind left fenderwell)
Junction connector j/c 15 (on left side of luggage compt, behind left fenderwell)
Junction connector j/c 5 (behind left side of dash)
K12
Left
Left rear combination light
License plate lights
Light failure sensor (on side of luggage compartment)
Noise filter (above left rear fenderwell)
Off
Passenger side j/b (behind lower right side of dash)
Rear light warning light
Red
Right
Right rear combination light
Side marker
Stop fuse 15a
Stop light
Stoplight switch (above brake pedal, on bracket)
Tail
Tail fuse 10a
Tail light
Taillight relay
Theft deterrent ecu (behind left end of dash)
Turn signal light
Turn signal light

Exterior Lamps Wiring Diagram (2 of 2) for Lexus IS 300 2001

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List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Lexus IS 300 2001:

A10
A12
A13
Body ecu (behind lower left side of dash, integral with driver side j/b)
Combination meter
Driver side j/b (behind lower left end of dash)
Engine room j/b 1 (on right rear of engine compartment)
Flasher relay
G104 (rear of left front fender)
G203 (behind right kick panel)
Gauge fuse 10a
H11
Haz
Hazard switch (a/c control assembly)
Hot at all times
Hot in on 0r start
I10
Junction connector j/c 5 (behind left side of dash)
Left
Left front parking light
Left front side marker light
Left front side turn light
Left front turn light
Left turn signal ind
Passenger side j/b (behind lower right side of dash)
Right
Right front parking light
Right front side marker light
Right front side turn light
Right front turn light
Right turn signal ind
Turn signal switch (combination switch)
Turn-haz fuse 15a

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2001

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List of elements for Ground Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2001:

B3 (body harn, left side of trunk)
B4 (body harn, left side of trunk)
Body ecu
Center air bag sensor assembly
Cigarette lighter
Combination meter
Combination switch
Driver side j/b (behind lower left end of dash)
Driver's power seat control switch
Driver's seat heater
Flash relay
Fuel pump
G308 (base of left "b" pillar)
G414
Headlight beam level control ecu
High mounted stoplight
I2 (dash harn, behind left sie of dash)
Junction connector j/c 11 (in left front door)
Junction connector j/c 15 (on left side of luggage compartment, behind left fenderwell)
L10
Left buckle switch
Left front door key lock & unlock switch & door lock detection switch
Left license plate light
Left rear combination light
Left rear door lock detection switch
Left rear power window control switch
Left remote control mirror
Light failure sensor
Luggage compartment door key unlock switch
Luggage compartment door opener relay
Mir htr relay
Noise filter (def cds)
Noise filter (stop- light)
Passenger side j/b (behind lower right end of dash)
Power window master switch
Remote control mirror switch
Rheostat
Right license plate light
Right rear combination light
T10
Telephone transceiver & speaker relay
Theft deterrent ecu
To j/c 5 (diagram 2 of 3)
Transponder key amplifier
Unlock warning switch
W/ power seat
W/o power seat
Wireless door lock control receiver

Ground Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2001

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List of elements for Ground Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2001:

(from driver side j/b) diagram 1 of 3)
A/c dual pressure switch
A/c magnetic clutch & lock sensor
A/c single pressure switch
A17
A18
Abs & traction ecu
Blower motor controller
Brake fluid level warning switch
Combination meter
Combination switch
Data link connector (dlc) 1
Data link connector (dlc) 3
E9 (eng harn, left side of engine)
Engine control module
Engine hood courtesy switch
Engine oil level sensor
Engine room r/b 3 (left side of eng compt)
Eo1
Eo2
Eo3
Eom
Fan relay
Front wiper motor
G104 (rear of left front fender)
G131 (front side of intake manifold)
G131 (on side of intake manifold)
G201 (behind upper right end of dash)
G201 (lower left center of dash, forward of center floor console)
G201 (lower right center of dash, forward of center floor console)
G202
Gnd1
Gnd2
Gnd3
Headlight cleaner control relay
Headlight cleaner motor
Heated oxygen sensor (bank 1, sensor 1)
Heated oxygen sensor (bank 1, sensor 2)
Heated oxygen sensor (bank 2, sensor 1)
Heated oxygen sensor (bank 2, sensor 2)
Igniter
J2 j/c 1, j/c 2 (on left side of eng compt)
Junction connector j/c 4 (on left side of eng compt)
Junction connector j/c 5 (behind left end of dash)
Junction connector j/c 7 (behind upper right side of dash)
Left front foglight
Left front parking light
Left front side marker light
Left front side turn signal light
Left front turn signal light
Left headlight control ecu
Meo1
Radiator fan motor
Radio & player
Stereo component amplifier

Ground Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2001

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List of elements for Ground Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2001:

(w/o moon roof)
A/c control assembly
Abs & traction actuator
B2 (body harn, front of roof)
B6 (body harn, under right front seat)
Buckle switch (right) & seat belt warning occupant detection sensor
Center air bag sensor assembly
Data link connector (dlc) 3
Daytime running light relay (main)
Daytime running light relay 3
Daytime running light relay 4
Daytime running light resistor
Driver's seat heater switch
Efi relay
Electronically controlled transmission pattern select switch
Engine room r/b 1 (right rear of eng compt)
Engine room r/b 2 (right rear of eng compt)
Front passenger's power seat control switch
Front passenger's seat heater
Front passenger's seat heater switch
G203 (behind right kick panel)
G301 (under right front seat)
G908 (center front of roof)
Glove box light
I5 (dash harn, behind right end of dash)
Junction connector j/c 16 (above right rear fenderwell)
Junction connector j/c 7 (behind upper right side of dash)
Left vanity light
Moon roof control ecu
Moon roof control switch
Passenger side j/b (behind lower right end of dash)
Personal light
Power outlet
Right door lock control switch
Right front door lock detection switch
Right front foglight
Right front parking light
Right front power window control switch
Right front side marker light
Right front side turn signal light
Right front turn signal light
Right headlight control ecu
Right rear door lock detection switch
Right rear power window control switch
Right remote control mirror
Right vanity light
Shift lock control ecu
Starter relay
Trac off switch
W/ power seat
W/o power seat
Water temperature switch

HEADLIGHTS

Headlamps Wiring Diagram (1 of 2) for Lexus IS 300 2001

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List of elements for Headlamps Wiring Diagram (1 of 2) for Lexus IS 300 2001:

+b1
+b2
Acc
Anti-theft system
Anti-theft system (door switches)
Auto
Automatic light control sensor (top left side of dash)
B10
Becu
Body ecu (behind lower left end of dash)
Bsub
Cltb
Clte
Clts
Computer data lines system
Dcty
Dimmer switch
Dome fuse 7.5a
Door fuse 20a
Driver side junction block (behind lower left end of dash)
Ecu-b2 fuse 7.5a
Exterior lights system
Flash
Fog lights
Foglight switch
G202
G414
Head
Headlight switch
High
Hot at all times
Hot in acc or run
J/c 12 (above left rear fender- well)
J/c 15 (on left side of luggage compartment)
J/c 5 (behind left end of dash)
Lgcy
Low
Lsr
Lswp
Mpx-b fuse 10a
Mpx1
Mpx2
Mpx3
Obd2
Off
Passenger side junction block (behind lower right end of dash)
Pcty
Prg
Radio 2 fuse 10a
Rcty
Rda
Red
Tail
Theft deterrent ecu (behind left side of dash)
Wireless door lock control receiver (below center of rear window)

Headlamps Wiring Diagram (2 of 2) for Lexus IS 300 2001

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List of elements for Headlamps Wiring Diagram (2 of 2) for Lexus IS 300 2001:

(behind right kick panel)
(on right rear of engine compartment) engine room relay block 1
C10
Chg-
Combination meter
Daytime running light relay 3 & 4 (at left front corner of engine compt)
Daytime running light resistor (on right side of eng compt)
Dimmer relay
Driver side junction block (behind lower left end of dash)
Drl 1 fuse 7.5a
Drl 2 fuse 30a
E1 (engine harness, right front of eng compt)
Ecu-b2 fuse 7.5a
Ecu-ig fuse 10a
Engine room relay block 1 (on right rear of engine compartment)
Engine room relay block 2 (on right rear of engine compartment)
Engine room relay block 3 (on left side of engine compartment)
Fr fog fuse 15a
Fr fog relay
G104 (rear of left front fender)
G203
G203 (behind right kick panel)
H-lp l lwr fuse 15a
H-lp l upr fuse 10a
H-lp r lwr fuse 15a
H-lp r upr fuse 10a
Head lp relay
Headlight control ecu (left low beam)
Headlight control ecu (right low beam)
Hi beam indic
Hot at all times
Hot in run or start
J/c 6 (behind left side of dash)
J/c 7 (upper right side of dash)
Left fog light
Left high beam headlight
Main daytime running light relay (behind left end of dash)
Main fuse 40a
Parking brake switch (at base of parking lever)
Passenger side junction block (behind lower right end of dash)
Red
Right fog light
Right high beam headlight

Headlamps Leveling Wiring Diagram for Lexus IS 300 2001

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List of elements for Headlamps Leveling Wiring Diagram for Lexus IS 300 2001:

A11
Anti-lock brakes system
Auto
C10
Combination meter
Driver side j/b (behind lower left end of dash)
Ecu-ig fuse 10a
Engine room relay block 1 (on right rear of engine compt)
Flash
G202
Gauge fuse 10a
H10
Head
Head lp relay
Headlight beam level cntrl warning light
Headlight beam level control ecu (behind left side of dash)
Headlight switch
High
Hot at all times
Hot in run or start
I10
J/c 5 (behind left end of dash)
J/c 6 (behind left side of dash)
Left front height control sensor (left front of eng compt)
Left headlight beam level control actuator
Left rear height control sensor (under left rear of vehicle, attached to suspension control arm)
Lh+
Lh-
Lhe
Lht
Low
Main fuse 40a
Off
Passenger side j/b (behind lower right end of dash)
Red
Rh+
Rh-
Rhe
Rht
Right headlight beam level control actuator
Sbf
Sbr
Sgf
Sgr
Shfl
Shrl
Spdr
Tail
Theft deterrent ecu (behind left side of dash)
Wng

HORN

Horn Wiring Diagram for Lexus IS 300 2001

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List of elements for Horn Wiring Diagram for Lexus IS 300 2001:

Engine room r/b 1 (on right rear of engine compt)
Engine room r/b 2 (on right rear of engine compt)
Horn
Horn switch (combination switch)
Horn fuse 10a
Horn relay
Hot at all times
I11
Left horn
Passenger side j/b (behind lower right end of dash)
Right horn
Theft deterrent ecu (behind left end of dash)

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for Lexus IS 300 2001

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List of elements for Instrument Cluster Wiring Diagram for Lexus IS 300 2001:

(lower left center of dash, forward of center console)
(rear of left front fender)
A/c control assembly
A11
A12
A13
A15
A16
A17
A18
A19
A20
A21
A22
Abs
Abs & traction ecu (behind left end of dash)
Anti-lock brakes system
Anti-theft system
Beam
Beam level
Body ecu
Brake
Brake fluid level warning switch (in brake fluid reservoir)
Buzzer
C10
Charge
Combination meter
Computer data lines system
Cruise
Door
Driver side j/b (behind lower left end of dash)
Econo
Ect pwr
Engine control module (left front of engine compt)
Engine oil level & oil temp sensor (lower left front of engine)
Engine oil pressure switch (left front of engine)
Exterior lights system
Fuel
Fuel sender (beneath left side of vehicle, forward of left fenderwell)
Fuel sender (sub) (beneath right side of vehicle, forward of right fenderwell)
G104
G104 (rear of left front fender)
G201
G202 (behind left end of dash)
Gauge fuse 10a
Headlights system
Hot at all times
Hot in on or start
Hot with taillight relay energized
Igniter (left side of engine compt, on strut tower)
Illumination
Interior lights system
J/b 5
J/c 6 (behind left side of dash)
Lbl+
Lbl-
Lcd
Malfunction indicator lamp
Mpx+
Mpx-
Mpx-b fuse 10a
Mpx1
Mpx2
Oil level
Oil pressure
Panel fuse 7.5
Parking brake switch (base of parking brake lever)
Passenger side j/b (behind lower right end of dash)
Pkb
Rear lights
Red
Seat belt
Slip
Snow
Sp1
Speedometer
Srs
Srs-b fuse 7.5a
Tachometer
Trac off
Turn lh
Turn rh
Volt
Water temp

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for Lexus IS 300 2001

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List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Lexus IS 300 2001:

(behind lower left side of dash) data link connector 3
Acc
B10
Becu
Body ecu (behind lower left end of dash)
Bsub
Dclp
Dcty
Dome fuse 7.5a
Door
Door fuse 20a
Driver side j/b (behind lower left end of dash)
Ecu-ig fuse 10a
G11
G131 (on side of intake manifold)
G202
G203 (behind right kick panel)
G301 (under right front seat)
Gauge fuse 10a
Gnd
Gnd2
Hot at all times
Hot in on or acc
Hot in on or start
Ignition key cylinder light
Ile
Interior light
J/c 15 (left side of luggage compt)
J/c 16 (above right rear fender- well)
J/c 16 (above right rear fenderwell)
J/c 5 (behind left end of dash)
J/c 7 (behind upper right side of dash)
L10
Left front door courtesy light
Left front door courtesy switch
Left rear door lock detection switch
Lgcy
Lsr
Lswp
Mpx-b fuse 10a
Mpx1
Mpx2
Mpx3
Obd2
Off
Passenger side j/b (behind lower right end of dash)
Pclp
Pcty
Pml
Pmul
Prg
Radio 2 fuse 10a
Rcty
Rda
Red
Right front door courtesy light
Right front door courtesy switch
Right front door lock control switch
Right front door lock detection switch
Right rear door lock detection switch
Srs-b fuse 10a

Courtesy Lamps Wiring Diagram (2 of 2) for Lexus IS 300 2001

모든 배선 다이어그램에 액세스하십시오.

List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Lexus IS 300 2001:

A/c control assembly (behind center of dash)
A12
A13
B1 (body harn, at center headliner)
Combination meter
Door
Engine control module (left front of engine compt)
G201 (forward of center console)
G202
G908 (center front of roof)
J/c 11 (in left front door)
J/c 12 (above left rear fenderwell)
J/c 15 (left side of luggage compt)
Left front door lock/ unlock switch & lock detection switch
Left rear door courtesy switch
Left vanity light
Lock
Lock decect
Luggage compartment door courtesy switch
Luggage compartment light
Luggage compartment light diode (on rear speaker shelf)
Personal light (w/ moon roof) (part of moon roof control switch)
Personal light (w/o moon roof)
Power window master switch
Red
Right rear door courtesy switch
Right vanity light
Theft feterrent ecu (behind left end of dash)
Unlk
Wireless door lock control receiver

Instrument Illumination Wiring Diagram for Lexus IS 300 2001

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List of elements for Instrument Illumination Wiring Diagram for Lexus IS 300 2001:

A/c control assembly
Ashtray illumi- nation
Cigarette lighter illumi- nation
Combi- nation meter
Driver side j/b (behind lower left end of dash)
Electronic controlled transmission pattern select switch
G202
G203 (behind right kick panel)
Glove box light
Head
Headlight cleaner switch
Hot at all times
I1 (dash harn, behind left side of dash)
Ill-
J/c 5 (behind left end of dash)
J/c 7 (behind upper right side of dash)
J/c 8 (behind upper right side of dash)
J/c 9 (behind upper right side of dash)
Light control switch (part of combination switch)
Off
Panel fuse 7.5a
Radio & player
Red
Rheostat (behind left side of dash)
Seat heater switch (driver)
Seat heater switch (front passenger)
Tail
Tail relay
Theft deterrent ecu (behind left end of dash)
Traction "off" switch
Transmission control switch (a/t position illumination)

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2001

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List of elements for Power Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2001:

(behind lower right end of dash) passenger side junction block
(on right rear of engine compartment) engine room relay block 1
Abs fuse 60a
Air conditioning & instrument cluster systems
Alt fuse 120a
Alt-s fuse 7.5a
Am2 fuse 20a
Anti-lock brakes system
Anti-theft system
Anti-theft system & horns system
Anti-theft, body computer, cruise control, door locks, engine controls, exterior lights, headlights, interior lights, instrument cluster, power windows, starting/ charging, transmissions & warning systems
Anti-theft, body computer, door locks, exterior lights, garage door opener, headlights & interior lights systems
Anti-theft, body computer, exterior lights & headlight systems
Anti-theft, exterior lights & headlights systems
Battery
Body computer & interior lights systems
Body computer system & power windows system
Cds fan fuse 30a
Cellular phones system
Cooling fans system
Cruise control system, engine controls system & transmission systems
D rr p/w fuse 20a
Dimmer relay
Dome fuse 7.5a
Drl 1 fuse 7.5a
Drl 2 fuse 30a
Ecu-b1 fuse 20a
Ecu-b2 fuse 7.5a
Efi fuse 25a
Engine controls, cruise control & transmission systems
Engine controls, transmission, cruise control systems
Engine room relay block 2 (on right rear of engine compartment)
Engine room relay block 3 (on left side of engine compartment)
Etcs fuse 15a
Exterior lights system
Fr fog fuse 15a
Fr fog relay
From a engine room relay block 1 (diagram 1 of 3)
H-lp cln fuse 30a
Head- light relay
Headlights system
Heater fuse 40a
Heater relay
Horn fuse 10a
Left lower head fuse 15a
Left upper headlmp fuse 15a
Main fuse 40a
Mir heater relay
Mir htr fuse 15a
Mpx-b fuse 10a
Obd fuse 7.5a
P fr p/w fuse 20a
P p/ seat fuse 30a
P rr p/w fuse 20a
P/w relay
Passenger side junction block (behind lower right end of dash)
Radio 1 fuse 20a
Rdi fan fuse 30a
Red
Right lower head fuse 15a
Right upper headlmp fuse 15a
Seats system
Sound systems
Srs-b fuse 7.5a
Starter
Starter relay
Starting/ charging system
Tel fuse 7.5a
To driver side junction block (diagram 2 of 3)
To engine room relay block 1 (diagram 1 of 3)
To ignition switch (diagram 2 of 3)
Turn/ hazard fuse 15a
Wiper/ washer system

Power Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2001

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List of elements for Power Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2001:

(behind lower left end of dash) driver side junction block
A/c fuse 10a
Acc
Air conditioning system
Air conditioning, instrument cluster, shift interlock & sound systems
Am 1 fuse 40a
Anti-lock brakes, cruise control, engine controls, exterior lights, shift interlock & transmission systems
B11
B12
Body computer system & interior lights systems
Body ecu
Bsub
D fr p/w fuse 20a
D p/seat fuse 30a
Door fuse 20a
Exterior lights system
From am2 fuse, engine room relay block 1 (diagram 1 of 3)
From engine room relay block 1 (diagram 1 of 3)
G11
H12
H13
I13
Ignition switch
K12
Lock
Mirror system
Panel fuse 7.5a
Power tops system
Power windows system
Radio 2 fuse 10a
Red
Rr def fuse 40a
Rr def relay
Run
S/roof fuse 30a
Seat htr fuse 15a
Seat systems
Seats system
Srs acc fuse 10a
Start
Starter fuse 7.5a
Starting/ charging, engine controls & transmission systems
Stop fuse 15a
Tail fuse 10a
Tail relay
To driver side junction block (cig fuse, 15a) (diagram 3 of 3)
To driver side junction block (gauge fuse, 10a) (diagram 3 of 3)
To passenger side junction block (ign fuse, 7.5a) (diagram 3 of 3)
Trunk, tailgate & fuel door systems
Washer fuse 15a
Wiper fuse 25a
Wiper/ washer systems

Power Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2001

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List of elements for Power Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2001:

(behind left side of dash) i3
(behind lower left end of dash) driver side junction block
(behind right kick panel) g203
(under right front seat) g301
A11
Air conditioning, cooling fans, headlights, shift interlock & warning systems
Anti-lock brakes system
Anti-lock brakes, cruise control, engine controls, exterior lights, headlights, instrument cluster, interior lights, starting/ charging, transmission & warning systems
Anti-theft, exterior lights & headlights systems
Body ecu
Cellular telephone & exterior lights systems
Cig fuse 15a
Cigar- ette lighter
Cruise control system
Cruise control, engine controls & transmission systems
Cruise control, exterior lights, shift interlock, starting/charging & transmission systems
Defogger & power window systems
Ecu-ig fuse 10a
Engine controls system
Flasher relay
From driver side junction block (diagram 2 of 3)
From driver side junction block (radio 2 fuse, 10a) (diagram 2 of 3)
From e driver side junction block (seat htr fuse, 15a) (diagram 2 of 3)
G202
Gauge fuse 10a
H11
H13
Headlights system
Ign fuse 7.5a
J/c 16 (above right rear fenderwell)
Junction connector j/c 5 (behind left end of dash)
Passenger side junction block (behind lower right end of dash)
Pnk
Power outlet
Power tops system
Power windows systems
Rr def relay

POWER DOOR LOCKS

Power Door Lock Wiring Diagram (1 of 3) for Lexus IS 300 2001

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List of elements for Power Door Lock Wiring Diagram (1 of 3) for Lexus IS 300 2001:

(below center of rear window, on speaker shelf) wireless door lock control receiver
A10
Acc
Act+
Act-
Actd
B10
B14
B15
B16
B19
B20
Becu
Body ecu (behind lower left end of dash, integral with driver side junction block)
Bsub
Bzr
Bzr2
Dcty
Door fuse 20a
Driver side junction block (behind lower left end of dash)
Ecu-ig fuse 10a
Flasher relay
G202
Gnd2
Ground
H10
Haz
Hot at all times
Hot in acc or run
Hot in run or start
I2 (dash harn, behind left side of dash)
Junction conenctor j/c 5 (behind left end of dash)
Junction connector j/c 12 (above left rear fenderwell)
Junction connector j/c 16 (above right rear fenderwell)
Junction connector j/c 6 (behind left side of dash)
Keyless buzzer (near top of left front wheelwell, inside fender)
Ksw
L10
Left front door courtesy switch
Left rear door courtesy switch
Left rear door lock motor & door lock detection switch
Lgcy
Lsr
Lswp
Mpx1
Mpx2
Mpx3
Obd2
Pcty
Pml
Pmul
Prg
Radio 2 fuse 10a
Rcty
Rda
Right front door courtesy switch
Right rear door courtesy switch
Tr+
Unlock warning switch

Power Door Lock Wiring Diagram (2 of 3) for Lexus IS 300 2001

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List of elements for Power Door Lock Wiring Diagram (2 of 3) for Lexus IS 300 2001:

(above left rear fenderwell) junction connector j/c 12
(behind upper right side of dash) junction connector j/c 7
(in left front door) junction connector j/c 11
(on left side of luggage compt, near fuel filler door) luggage compartment door opener relay
Bdm
Driver side junction block (behind lower left end of dash)
G301 (under right front seat)
G414
Junction connector j/c 15 (on left side of luggage compt, behind left fenderwell)
Junction connector j/c 16 (above right rear fenderwell)
Kul
Left front door lock motor, door key lock & unlock switch & door lock detection switch
Lock
Lock detect
Lswd
Passenger side junction block (behind lower right end of dash)
Power window master switch
Right door lock control switch
Right front door lock motor & door lock detection switch
Right rear door lock motor & door lock detection switch
Unlk

Power Door Lock Wiring Diagram (3 of 3) for Lexus IS 300 2001

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List of elements for Power Door Lock Wiring Diagram (3 of 3) for Lexus IS 300 2001:

(on side of intake manifold) g131
A/c control assembly
A12
A13
A20
A21
C27
C28
Combination meter
Data link connector 3 (behind lower left side of dash)
Dome fuse 7.5a
Engine control module (on left front of engine compt, in protective case)
G11
G203 (behind right kick panel)
Hot at all times
Junction connector j/c 12 (above left rear fenderwell)
Luggage compt door courtesy switch & opener motor
Mpx+
Mpx-
Mpx-b fuse 10a
Mpx1
Mpx2
Passenger side junction block (behind lower right end of dash)
Theft deterrent ecu (behind left end of dash)

POWER MIRRORS

Power Mirrors Wiring Diagram for Lexus IS 300 2001

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List of elements for Power Mirrors Wiring Diagram for Lexus IS 300 2001:

B12
Down
Driver side j/b (behind lower left end of dash)
G202
Hot in on or acc
J/c 11 (in left front door)
J/c 5 (behind left end of dash)
L10
Left
Left remote control mirror
Operation switches
Radio 2 fuse 10a
Remote control mirror switch
Right
Right remote control mirror
Select switches

POWER SEATS

Heated Seats Wiring Diagram for Lexus IS 300 2001

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List of elements for Heated Seats Wiring Diagram for Lexus IS 300 2001:

Driver side j/b (behind lower left end of dash)
Driver's seat heater
Driver's seat heater switch
G203 (behind right kick panel)
G301 (under right front seat)
G308 (base of left "b" pillar)
Hot in on or start
Interior lights sysytem
J/c 7 (behind upper right side of dash)
Passenger side j/b (behind lower right end of dash)
Passenger's seat heater
Passenger's seat heater switch
Seat htr fuse 15a

Power Seats Wiring Diagram for Lexus IS 300 2001

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List of elements for Power Seats Wiring Diagram for Lexus IS 300 2001:

D p/seat fuse 30a
Down
Driver side j/b (behind lower left end of dash)
Driver's power seat control switch
Front
Front vertical control motor (under seat)
G301 (under right front seat)
G308 (base of left "b" pillar)
Hot at all times
I13
P p/seat fuse 30a
Passenger side j/b (behind lower right end of dash)
Passenger's power seat control switch
Rear
Rear vertical control motor (under seat)
Reclining
Reclining control motor (under seat)
Slide
Slide control motor (under seat)
Vertical

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagrams for Lexus IS 300 2001

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List of elements for Power Top/Sunroof Wiring Diagrams for Lexus IS 300 2001:

(center front of roof)
(on front center of roof) moon roof control ecu
Body ecu (behind lower left end of dash)
Close
Cls
Dcty
Down
Driver side junction block (behind lower left end of dash)
Dwn
Ecu-ig fuse 10a
G908
Gnd
Hot at all times
Hot in run or start
Left front door courtesy switch
Ls1
Ls2
Moon roof control switch
Open
Opn
Red
S/roof fuse 10a
Solid state

POWER WINDOWS

Power Window Wiring Diagram for Lexus IS 300 2001

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List of elements for Power Window Wiring Diagram for Lexus IS 300 2001:

(behind lower left end of dash) driver side j/b
(behind right kick panel) g203
(under right front seat) g301
Acc
B10
B11
Bcty
Bdm
Becu
Body ecu (behind lower left end of dash)
Bsub
Computer data lines system
D fr p/w fuse 20a
D rr p/w fuse 20a
Dcty
Door fuse 20a
Down
Driver side j/b (behind lower left end of dash)
Ecu-ig fuse 10a
G202
G414
Gauge fuse 10a
Gnd
Gnd2
H11
Hot at all times
Hot in acc or run
Hot in run or start
J/c 16 (above right rear fender- well)
Junction connector j/c 15 (on left side of luggage compt, behind left fenderwell)
Junction connector j/c 5 (behind left side of dash)
L10
Left front door courtesy switch
Left front power window motor
Left rear power window control switch
Left rear power window motor
Limit sw
Lmt
Mpx-b fuse 10a
Mpx1
Mpx2
Mpx3
Obd2
P fr p/w fuse 20a
P rr p/w fuse 20a
P/w relay
Passenger side j/b (behind lower right end of dash)
Pls
Power window master switch
Pulse sensor
Pwl
Pwr
Radio 2 fuse 10a
Red
Right front power window control switch
Right rear power window control switch
Right rear power window motor
Rigiht front power window motor
Rld
Rlu
Rrd
Rru
Sgnd

RADIO

Radio Wiring Diagrams for Lexus IS 300 2001

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List of elements for Radio Wiring Diagrams for Lexus IS 300 2001:

Acc
Amp
Ant
Antenna amplifier (behind center of dash)
B12
Cdl+
Cdl-
Cdr+
Cdr-
Driver side j/b (behind lower left side of dash)
Engine room r/b 1 (on right rear of engine compt)
Fl+
Fl-
Fr+
Fr-
G201 (lower right center of dash, forward of center floor console)
Gnd
Hot at all times
Hot in acc or on
J/c 10 (behind upper upper right side of dash)
Left front door speaker
Left rear speaker & woofer
Left tweeter
Mute
Nca
Passenger side j/b (behind lower right end if dash)
Pnk
Radio & player
Radio fuse 1 20a
Rear speaker
Red
Right front door speaker
Right rear speaker & woofer
Right tweeter
Rli+
Rli-
Rlo+
Rlo-
Rr+
Sgnd
Stereo component amplifier (behind right end of dash)
T10
T11
Telephone transceiver & speaker relay (left side of luggage compt, near fuel filler door)
Tx+
Tx-
Wfl+
Wfl-
Wfr+
Wfr-
Woofer

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram for Lexus IS 300 2001

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List of elements for Shift Interlock Wiring Diagram for Lexus IS 300 2001:

(above driver
(behind lower left end of dash)
10a
15a
Acc
Driver side j/b
Driver side j/b (behind lower left end of dash)
Ecu-ig fuse
Engine control module (left front of engine compartment)
G202 (behind left end of dash)
G203 (behind right kick panel)
Gauge fuse
H10
Hot at all times
Hot in acc or on
Hot in on or start
I13
J/c 1, j/c 2 (left side of engine compt)
J/c 10 (behind upper right side of dash)
J/c 5
J/c 7 (behind upper right side of dash)
Key interlock solenoid
Kls+
Mt3
Nssd
Park/neutral postion sw (right side of trans)
Passenger side j/b (behind lower right end of dash)
Radio 2 fuse
Shift lock control switch
Shift lock ecu (under center console, beside shift lever)
Shift lock solenoid
Side j/b)
Sls+
Sls-
Stop fuse
Stoplight switch
Stp

STARTING/CHARGING

Charging Wiring Diagram for Lexus IS 300 2001

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List of elements for Charging Wiring Diagram for Lexus IS 300 2001:

A/c control assembly
A12
A13
Alt fuse 120a
Alt-s fuse 7.5a
Battery
Charge
Combination meter
Computer data lines system
Driver side j/b (behind lower left end of dash)
Engine control module (on left front of engine compt, in protective case)
Engine room r/b 1 (on right rear of engine compt)
G201 (lower left center of dash, forward of center floor console)
Gauge fuse 10a
Generator
Hot at all times
Hot in on or start
J/c 1 & j/c 2 (left side of engine compt, near ecm)
Mpx+
Mpx-
Mpx-b fuse 10a
Mpx1
Mpx2
Passenger side j/b (behind lower right end of dash)
Theft deterrent ecu (behind left end of dash)

Starting Wiring Diagram for Lexus IS 300 2001

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List of elements for Starting Wiring Diagram for Lexus IS 300 2001:

Acc
Am2
Am2 fuse 20a
Battery
Driver side j/b (behind lower left end of dash)
Engine room r/b 1 (on right rear of engine compartment)
G200 (behind right kick panel)
Ignition switch
Lock
Main fuse 40a
Nca
Park/neutral position switch (on right side of transmission)
St2
Start
Starter
Starter fuse 7.5a
Starter relay

SUPPLEMENTAL RESTRAINTS

Supplemental Restraint Wiring Diagram for Lexus IS 300 2001

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List of elements for Supplemental Restraint Wiring Diagram for Lexus IS 300 2001:

(at base of left "b" pillar) left side air bag sensor
(left front floor panel) g300
(right front floor panel) g301
+sl
+sr
-sl
-sr
A11
Acc
Air bag squib (front passenger's air bag assembly)
Air bag squib (steering wheel pad)
Center air bag sensor assembly (below center of dash, on transmission tunnel)
Combination meter
Data link connector 1 (partial) (on left front of engine compartment, forward of engine room 3 r/b)
Data link connector 3 (partial) (behind lower left side of dash)
Driver side j/b (behind lower left end of dash)
Esl
Esr
Fsl
Fsr
G202
Hot at all times
Hot in acc or on
Hot in on or start
Ig2
Ign fuse 7.5a
J/c 13 (above left rear fenderwell)
J/c 16 (above right rear fender- well)
J/c 3 (on left side of engine compartment, near engine control module)
J/c 5 (behind left end of dash, above driver side j/b)
Lbe+
Left buckle switch (inside left front seat belt buckle)
Left front air bag sensor (on left side of radiator support)
Left pretensioner
Left side air bag squib
Passenger side j/b (behind lower right end of dash)
Pl+
Pl-
Pnk
Pr+
Pr-
Rbe+
Right buckle switch & seat belt warning occupant detection sensor (inside of right front seat belt buckle)
Right front air bag sensor (on right side of radiator support)
Right pretensioner
Right side air bag sensor (at base of right "b" pillar)
Right side air bag squib
Sfl+
Sfl-
Sfr+
Sfr-
Sil
Spiral cable
Srs warning indicator
Srs- acc fuse 10a
Srs-b fuse 7.5a
Ssl+
Ssr+
Vupl
Vupr

TRANSMISSION

A/T Wiring Diagram (1 of 2) for Lexus IS 300 2001

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List of elements for A/T Wiring Diagram (1 of 2) for Lexus IS 300 2001:

(engine harn, left front of engine compt)
+b2
+bm
A/c control assembly
A/t shift main switch (integral to combination switch)
B11
Batt
Computer data lines system
Data link connector 1 (left front of engine compt)
Driver side j/b (behind lower left end of dash)
E10 (engine harn, top left side of engine)
Ea (front side of intake manifold)
Ec (rear of left front fender)
Efi fuse 25a
Efi relay
Electronically controlled transmission pattern select switch
Engine control module (ecm) (left front of engine compt, in protective case)
Engine controls system
Engine coolant temperature sensor (on left front of engine)
Engine room r/b 1 (on right rear of engine compt)
Engine room r/b 2 (on right rear of engine compt)
Eom
Etcs fuse 15a
Evg
Hot at all times
Hot in run or start
Ign fuse 7.5a
Igsw
Ih (behind right kick panel)
J/c 3 (near ecm)
J/c 7 (behind upper right side of dash)
Mass airflow meter (right side of engine compt, behind air box)
Mpx-
Mpx1
Mpx2
Mrel
Passenger side j/b (behind lower right end of dash)
Pwr
Red
Sftd
Sftu
Snow
Sta
Starting/ charging system
Stop fuse 15a
Stoplight switch (above brake pedal, on bracket)
Stp
Tha
Thw

A/T Wiring Diagram (2 of 2) for Lexus IS 300 2001

모든 배선 다이어그램에 액세스하십시오.

List of elements for A/T Wiring Diagram (2 of 2) for Lexus IS 300 2001:

(front side of intake manifold) ea
(right side of transmission) (integral to park/neutral position switch) a/t indicator light switch
Accel position sensor (on center rear of engine, on throttle body)
Braided
Cl+
Cl-
Combi- nation meter
Computer data lines system
Driver side j/b (behind lower left end of dash)
E01
E02
E03
E8 (top left side of engine)
Eb (center side of intake manifold)
Electronically controlled transmission solenoid (left side of transmission)
Engine control module (ecm) (left front of engine compt, in protective case)
Engine controls system
Gauge fuse 10a
Ge01
Hot in on or start
J/c 1, j/c 2 (near ecm)
J/c 4 (near ecm)
Me01
Mil
Nca
Nco+
Nco-
O/d direct clutch speed sensor (left side of transmission)
Oil
Red
Sln+
Sln-
Slt+
Slt-
Slu+
Slu-
Sp2+
Sp2-
Speedo
Tach
Throttle control motor (on throttle body)
Throttle position sensor (on throttle body)
Transmission control switch (d-4) (integral to shift lock control ecu)
Transmission control switch (l-2)
Vehicle speed sensor (left rear of transmission)
Vpa
Vpa2
Vta
Vta2