All Wiring Diagrams for Lexus IS 300 2002 model

AIR CONDITIONING

Air Conditioning Wiring Diagrams for Lexus IS 300 2002

List of elements for Air Conditioning Wiring Diagrams for Lexus IS 300 2002:

(behind right kick panel) ih
(below center of dash, behind center console) a/c control assembly
(dash harn, top center of dash)
(front side of intake manifold) ea
(left side of engine compt, near ecm) j/c 3
(rear of left front fender)
(rear of left front fender) ec
(right side of radiator) water temperature switch
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)
A12
A13
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
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
Gnd
H10
H12
Hazd
Heater fuse 40a
Hot at all times
Hot in on or acc
Hot in on or start
Htr relay
I12
Ig (behind right end of dash)
Ih (behind right kick panel)
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 10 (behind upper right side of dash)
J/c 19 (right side of dash)
J/c 8 (behind upper right side of dash)
Lck1
Mpx+
Mpx-
Mpx-b fuse 10a
Mpx1
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
Single
Snow
Tam
Tpi
Tpm
Transmission system
Warning systems

ANTI-LOCK BRAKES

Anti-lock Brake Wiring Diagrams, with VSC (1 of 2) for Lexus IS 300 2002

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List of elements for Anti-lock Brake Wiring Diagrams, with VSC (1 of 2) for Lexus IS 300 2002:

+bi
Abs & ba & trac & vsc actuator (on left side of engine compt)
Abs 1 fuse 60a
Abs mtr relay
Abs no.4 fuse 7.5a
Abs sol relay
Ast
Brake fluid level warning switch (on brake fluid level reservoir)
Ec (right front fender)
Ecu-b2 fuse 7.5a
Engine room no. 1 r/b (on right rear of eng compt)
Engine room no. 2 r/b (on right rear of eng compt)
Fl+
Fl-
Fr+
Fr-
Fss
Gnd1
Gnd2
Gnd3
Gnd4
Hot at all times
Hot in on or start
I6 (left end of dash)
Ih (behind right kick panel)
J/c j5 (behind left end of dash, above driver side j/b)
Lbl-
Left front abs speed sensor
Mrf
Nca
Passenger side j/b (behind lower right end of dash)
Pmc
Pmc2
Pressure sensor 1
Pressure sensor 2
Red
Relay
Right front abs speed sensor
S15
S18
Sflh
Sflr
Sfrh
Sfrr
Skid control ecu (behind left side of dash)
Sm1+
Sm1-
Sm2+
Sm2-
Src1
Src2
Srlh
Srlr
Srm1
Srm2
Srrh
Srrr
Vcm
Vcm2

Anti-lock Brake Wiring Diagrams, with VSC (2 of 2) for Lexus IS 300 2002

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List of elements for Anti-lock Brake Wiring Diagrams, with VSC (2 of 2) for Lexus IS 300 2002:

+bo
Abs
Bat
Bj (base of left "b" pillar)
Brake
Brake pedal load sensing switch
C10
Combi- nation meter
Computer data lines system
Csw
D/g
Driver side j/b (behind lower left end of dash)
Driver side j/b (behind lower left eng of dash)
Driver side j/b (behind right side of dash)
Ecu-ig fuse 10a
Eng+
Eng-
Engine control module (on left front of engine compt, in protective case)
Ess
Fro
Fsw+
Fsw-
Gauge fuse 10a
Gss
Headlights system
Hot at all times
Hot in on or start
Ig1
Ih (behind right kick panel)
Ind
J/c j6 (behind left side of dash, forward of instrument cluster)
J/c j7 (behind upper right side of dash)
Lblo
Left rear abs speed sensor
Neo
Parking brake switch (at base of parking brake lever)
Passenger side j/b (behind lower right side of dash)
Pkb
Pnk
Red
Right rear abs speed sensor
Rl+
Rl-
Rr+
Rr-
S16
S17
Skid control ecu (behind left side of dash)
Slip
Sp1
Speed- ometer
Ss-
Ss1+
Ss1-
Steering sensor
Stop fuse 15a
Stoplight switch (above brake pedal, on bracket)
Stp
Trac off
Trac off switch
Trc+
Trc-
Trig
Vsc
Vsc warning buzzer
Vscw

Anti-lock Brake Wiring Diagrams, without VSC (1 of 2) for Lexus IS 300 2002

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List of elements for Anti-lock Brake Wiring Diagrams, without VSC (1 of 2) for Lexus IS 300 2002:

+bi
Abs & ba & trac & vsc actuator (on left side of engine compt)
Abs 1 fuse 60a
Abs mtr relay
Abs no.4 fuse 7.5a
Abs sol relay
Ast
Brake fluid level warning switch (on brake fluid level reservoir)
Ec (right front fender)
Ecu-b2 fuse 7.5a
Engine room no. 1 r/b (on right rear of eng compt)
Engine room no. 2 r/b (on right rear of eng compt)
Fl+
Fl-
Fr+
Fr-
Fss
Gnd1
Gnd2
Gnd3
Gnd4
Hot at all times
Hot in on or start
Ih (behind right kick panel)
J/c j5 (behind left end of dash, above driver side j/b)
Lbl-
Left front abs speed sensor
Mrf
Nca
Passenger side j/b (behind lower right end of dash)
Pmc2
Pressure sensor
Relay
Right front abs speed sensor
S15
S18
Sflh
Sflr
Sfrh
Sfrr
Skid control ecu (behind left side of dash)
Sm1+
Sm1-
Sm2+
Sm2-
Src1
Src2
Srlh
Srlr
Srm1
Srm2
Srrh
Srrr
Vcm2

Anti-lock Brake Wiring Diagrams, without VSC (2 of 2) for Lexus IS 300 2002

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List of elements for Anti-lock Brake Wiring Diagrams, without VSC (2 of 2) for Lexus IS 300 2002:

(a/t)
(m/t)
A/c control assembly
Abs
Brake
Brake pedal load sensing switch
C10
Combi- nation meter
Computer data lines system
Csw
D/g
Driver side j/b (behind lower left end of dash)
Driver side j/b (behind lower left eng of dash)
Ecu-ig fuse 10a
Eng+
Eng-
Engine control module (on left front of engine compt, in protective case)
Fro
Fsw+
Fsw-
Gauge fuse 10a
Headlights system
Hot at all times
Hot in on or start
Ig+
Ig1
Ih (behind right kick panel)
Ind
J/c j2 (left side of eng compt, near ecm)
J/c j6 (behind left side of dash, forward of instrument cluster)
J/c j7 (behind upper right side of dash)
Lblo
Left rear abs speed sensor
Mpx-
Mpx1
Neo
Parking brake switch (at base of parking brake lever)
Passenger side j/b (behind lower right side of dash)
Pkb
Pnk
Red
Right rear abs speed sensor
Rl+
Rl-
Rr+
Rr-
S16
S17
Skid control ecu (behind left side of dash)
Slip
Snow
Sp1
Speed- dometer
Stop fuse 15a
Stoplight switch (above brake pedal, on bracket)
Stp
Trac off
Trac off switch and snow switch
Trc+
Trc-
Vehicle speed sensor (in combination meter)
Vsc
Vscw

ANTI-THEFT

Anti-theft Wiring Diagram (1 of 3) for Lexus IS 300 2002

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List of elements for Anti-theft Wiring Diagram (1 of 3) for Lexus IS 300 2002:

(below center of rear window, on speaker shelf) wireless door lock control receiver
(sedan)
(sedan) (wagon)
(wagon)
A10
Acc
B10
B14
B15
B16
B19
Back door courtesy switch
Becu
Body ecu (behind lower left end of dash, integral with driver side junction block)
Bsub
Bzr
Bzr2
C d
Dcty
Door fuse 20a
Driver side junction block (behind lower left end of dash)
Ecu-ig fuse 10a
Exterior lights system
Flasher relay
Gnd2
Ground
Haz
Hot at all times
Hot in acc or run
Hot in run or start
I2 (behind left side of dash)
J/c 12 (above left left rear wheelwell) j/c 17 (base of left "d" pillar)
Junction conenctor j/c 5 (behind left side of dash)
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
Sedan
Tail relay
Wagon

Anti-theft Wiring Diagram (2 of 3) for Lexus IS 300 2002

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List of elements for Anti-theft Wiring Diagram (2 of 3) for Lexus IS 300 2002:

(in left front door) junction connector j/c 11
(sedan)
(wagon)
Alt fuse 120a
Bdm
Bk (under right front seat)
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)
Headlight relay
Headlights system
Horn fuse 10a
Horn relay
Horn system
Hot at all times
Ih (behind right kick panel)
J/c 12 (above left rear fenderwell) j/c 17 (base of left "d" pillar)
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
Sedan
Unlk
Wagon

Anti-theft Wiring Diagram (3 of 3) for Lexus IS 300 2002

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List of elements for Anti-theft Wiring Diagram (3 of 3) for Lexus IS 300 2002:

(a12-a18 not used)
(a20-a21 not used)
(a7-a9 not used)
(b5-b6 not used)
(b9-b11 not used)
(behind upper left side of dash) diode (fog light)
+b1
A/c control assembly
A10
A11
A12
A13
A17
A18
A19
A20
A21
A22
A30
A31
B10
B12
B23
B24
Batt
C10
Code
Combination meter
Data link connector 3 (behind lower left side of dash)
Dome fuse 7.5a
Door dl fuse 15a
Dswh
Ec (rear of left front fender)
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
G11
Ground
Head
Horn
Hot at all times
Hot in run or start
I11
I2 (behind left side of dash)
Ign fuse 7.5a
Igsw
Ih (behind right kick panel)
Imld
Ind
J/c 3 (left side of engine compt)
J/c 5 (left side of dash)
J/c 7 (upper right side of dash)
Junction connector j/c 6 (behind left side of dash)
Ksw
Lug
Mpx+
Mpx-
Mpx-b fuse 10a
Mpx1
Mpx2
Mrel
Multi- display
Nav
Passenger side junction block (behind lower right end of dash)
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 2002

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List of elements for Body Computer Wiring Diagrams for Lexus IS 300 2002:

(wagon only)
Acc
Act+
Act-
Actd
Anti-theft system
B10
Bcty
Bdsu
Becu
Body ecu (behind lower left end of dash, integral with driver side j/b)
Bsub
Bzr
Bzr2
Computer data lines
Dbkl
Dclp
Dcty
Defogger system
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
Gnd
Gnd2
H10
Haz
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, above driver side j/b)
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 2002

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List of elements for Computer Data Lines for Lexus IS 300 2002:

(on left side of engine compt, near engine control module) j/c j3
(under right front seat) bk
A/c control assembly
A11
A12
A13
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 3 (behind lower left side of dash)
Driver side j/b
Driver side j/b (behind lower left end of dash)
Eb (on side of intake manifold)
Engine control module (on left front of engine compt, in protective case)
G11
Hot at all times
Ih (behind right kick panel)
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
S16
S17
Sil
Tac
Tach
Theft deterrent ecu (behind left end of dash)
Wfse

COOLING FAN

Cooling Fan Wiring Diagram for Lexus IS 300 2002

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List of elements for Cooling Fan Wiring Diagram for Lexus IS 300 2002:

A/c comp relay
A/c condenser fan motor
A/c control assembly
A/c diode (behind right end of dash)
A/c single pressure switch
A12
A13
Acc
Acmg
Cds fan fuse 30a
Computer data lines system
Driver side j/b (behind lower left end of dash)
Ec (rear of left front fender)
Ecu-ig fuse 10a
Engine control module (left front of engine compt)
Engine room 1 r/b (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
Gnd
H10
Hot at all times
Hot in on or acc
Hot in on or start
Ih (behind right kick panel)
J/c 10 (behind upper right side of dash)
J/c 3 (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)
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 2002

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List of elements for Cruise Control Wiring Diagram (1 of 2) for Lexus IS 300 2002:

(left side of engine compt)
(m/t)
+b2
+bm
A/t
B11
Batt
Ccs
Cl+
Cl-
Computer data lines system
Cruise control clutch switch
D/clsw
Driver side j/b (behind lower left end of dash)
E01
E03
Ea (front side of intake manifold)
Eb (center side of intake manifold)
Ec (rear of left front fender)
Ecu- ig fuse 10a
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
Gauge fuse 10a
Ge01
Hot at all times
Hot in on or start
Ign fuse 7.5a
Igsw
Ih (behind right kick panel)
J/c 1
J/c 2
J/c 3 (left side of engine compt)
J/c 4 (left side of engine compt)
J/c 6 (behind left side of dash)
M/t
Me01
Mpx1
Mpx2
Mrel
Park/neutral position switch (on right side of transmission)
Passenger side j/b (behind lower right end of dash)
Passenger side j/b (beinind lower right end of dash)
Red
Shield
Stop fuse 15a
Stoplight switch (on brake pedal bracket)
Stp
Stt-
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 2002

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List of elements for Cruise Control Wiring Diagram (2 of 2) for Lexus IS 300 2002:

(behind lower left side of dash) data link connector 3
(left side of engine compt)
(left side of engine compt) j/c 4
(m/t)
(top left side of engine) e8
A/t
Accel position sensor (on center rear of engine, on throttle body)
Bat
C10
Cancel
Combination meter
Computer data lines system
Cruise
Cruise control switch
Cruise ind
Driver side j/b (behind lower left end of dash)
E10 (top left side of engine)
Ea (front side of intake manifold)
Eb (center side of intake manifold)
Hot at all times
Ie (lower left center of dash, forward of center floor console)
Ig+
Ih (behind right kick panel)
J/c 1
J/c 2
J/c 7 (behind upper right side of dash)
M/t
Mpx-b fuse 10a
Obd fuse 7.5a
Passenger side j/b (behind lower right end of dash)
Red
Res/acc
S16
Set/coast
Skid control ecu (left end of dash)
Speedometer
Throttle position sensor (on throttle body)
Vehicle speed sensor (on right rear of transmission)

DEFOGGERS

Defogger Wiring Diagram for Lexus IS 300 2002

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List of elements for Defogger Wiring Diagram for Lexus IS 300 2002:

A12
A13
Alt fuse 120a
Bm (lower left side of luggage compt)
Body ecu
Combin -ation meter
Dfg
Driver side j/b (behind lower left end of dash)
Engine control module (on left front of engine compt)
Engine room 1 relay block (right rear of engine compt)
Gauge fuse 10a
H11
Hot at all times
Hot in on or start
Ih (behind right kick panel)
J/c 11 (in left front door)
J/c 5 (behind left end of dash)
K12
L10
Left mirror heater
Mhtr
Mir htr fuse 15a
Mir htr relay
Mpx+
Mpx-
Mpx1
Mpx2
Noise filter
Passanger side j/b (below lower right end of dash)
R11
R12
R19
R20
Rear window defogger
Rear window defogger switch
Right mirror heater
Rr def fuse 40a
Rr def relay
Sedan
Theft deterent ecu (behind left end of dash)
Wagon

ENGINE PERFORMANCE

3.0L

3.0L, Engine Performance Wiring Diagrams (1 of 6) for Lexus IS 300 2002

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List of elements for 3.0L, Engine Performance Wiring Diagrams (1 of 6) for Lexus IS 300 2002:

(near ecm) j/c 3
(w/a/t)
(w/m/t)
+b2
+bm
A/c system
Accel position sensor (on center rear of engine, on throttle body)
Acmg
Anti-theft system
Batt
Ccs
Circuit opening relay
Clsw
Code
Computer data lines system
Cruise control system
Data link connector 3 (behind lower left side of dash)
Ec (rear of left front fender)
Efi fuse 25a
Efi relay
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 2 (on right rear of engine compt)
Eom
Etcs fuse 15a
F/ps
Fpr
Gnd
Hot at all times
Ht1b
Ht2b
Igsw
Ih (behind right kick panel)
Imld
J/c 1, j/c 2 (near ecm)
J/c 3 (near ecm)
J/c 5 (behind left kick panel)
Ksw
Mpx1
Mpx2
Mrel
Neo
Ox1b
Ox2b
Passenger side j/b (behind lower right end of dash)
Pnk
Ptnk
Rxck
S16
S17
Sftd
Sftu
Sil
Skid control ecu (behind left end of dash)
Spd
St1-
Sta
Starting/charging system
Stp
Tach
Tbp
Transponder key amplifier (on steering column, near ignition switch)
Trc+
Trc-
Txct
Vapor pressure sensor (under center rear of vehicle)
Vcc
Vpa
Vpa2
Wfse

3.0L, Engine Performance Wiring Diagrams (2 of 6) for Lexus IS 300 2002

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List of elements for 3.0L, Engine Performance Wiring Diagrams (2 of 6) for Lexus IS 300 2002:

(behind lower left end of dash) driver side j/b
(on left side of engine compt) fuel pump resistor
(under left side of vehicle) fuel pump & sender
A/c control assembly
A/t shift main switch (integral to combination switch)
A12
B11
E4 (engine harn, left front of engine compt)
Ea (front side of intake manifold)
Ecc
Electronically controlled transmission pattern select switch
Engine room r/b 3 (on left side of engine compt)
Fuel pmp relay
H13
Ign fuse 7.5a
Ih (behind right kick panel)
J/c 15 (on left side of luggage compt)
J/c 7 (behind upper right side of dash)
Mpx-
Passenger side j/b (behind lower right end of dash)
Pnk
Pwr
Sftd
Sftu
Snow
Vsv (acis) (on left side of engine)
Vsv (canister closed valve) (on right front of engine)
Vsv (pressure switching valve) (under center rear of engine)

3.0L, Engine Performance Wiring Diagrams (3 of 6) for Lexus IS 300 2002

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List of elements for 3.0L, Engine Performance Wiring Diagrams (3 of 6) for Lexus IS 300 2002:

(above brake pedal, on bracket) stoplight switch
(behind left side of dash) j/c 6
(behind lower left end of dash) driver side j/b
(engine harn, top left side of engine) e10
Acc
Acis
Ccv
Driver side j/b (behind lower left end of dash)
E01
E02
Ea (front side of intake manifold)
Eb (center side of intake manifold)
Engine control module (ecm) (on left front of engine compt, in protective case)
Engine coolant temperature sensor (on left front of engine)
Evg
Gauge fuse 10a
Gnd
Hot at all times
Hot in on or start
Ht2a
Igf
Ignition switch
Igt
J/c 5 (behind left kick panel)
Lock
Mass airflow meter (on right side of engine compt, behind air box)
Me01
Ox2a
Pnk
Power steering oil pressure sensor (on left front of engine)
Psp
Red
Start
Stop fuse 15a
Tha
Thw
Unlock warning switch
Vout

3.0L, Engine Performance Wiring Diagrams (4 of 6) for Lexus IS 300 2002

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List of elements for 3.0L, Engine Performance Wiring Diagrams (4 of 6) for Lexus IS 300 2002:

(behind lower right end of dash) passenger side j/b
(engine harn, top left side of engine) e6
(on left side of engine compt, on strut tower) igniter
(on left side of engine) noise filter (ignition)
A (or d)
Braided
Combination meter
E5 (engine harn, top left side of engine)
E7 (engine harn, top left side of engine)
Ea (front side of intake manifold)
Fuel injector
Gnd
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) (on right side of engine, on exhaust system)
Igf
Ignition coil 1
Ignition coil 2
Ignition coil 3
In1
In2
In3
J/c 16 (above right rear fenderwell)
Mil
Pnk
Red
Speedometer
Tachometer

3.0L, Engine Performance Wiring Diagrams (5 of 6) for Lexus IS 300 2002

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List of elements for 3.0L, Engine Performance Wiring Diagrams (5 of 6) for Lexus IS 300 2002:

(near ecm) j/c 1, j/c 2
A/t indicator light switch (integral to park/neutral position switch) (on right side of trans)
Braided
D n
Ec (rear of left front fender)
Electronically controlled transmission solenoid (on left side of transmission)
Engine oil level sensor (on lower left front of engine)
Level
Mt3
O/d direct clutch speed sensor (on left side of trans)
Red
Sln+
Sln-
Slt+
Slt-
Slu+
Slu-
Temp
Transmission control switch (d-4) (integral to shift lock control ecu) nssd
Transmission control switch (l-2)

3.0L, Engine Performance Wiring Diagrams (6 of 6) for Lexus IS 300 2002

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List of elements for 3.0L, Engine Performance Wiring Diagrams (6 of 6) for Lexus IS 300 2002:

(engine harn, left front of engine compt)
(front side of intake manifold) ea
(near ecm) j/c 1, j/c 2
(near ecm) j/c 4
Braided
Camshaft position sensor (on left rear of cyl head)
Camshaft timing oil control valve (on left front of cyl head)
Cl+
Cl-
Cooling fans system
Crankshaft position sensor (on right side of engine)
E03
E11
Eb (center side of intake manifold)
Engine control module (ecm) (on left front of engine compt, in protective case)
Engine oil pressure switch (on left front of engine)
Fan
Ge01
Ht1a
Igt2
Igt3
Knk1
Knk2
Knock sensor 1 (on left front of engine block)
Knock sensor 2 (on left rear of engine block)
Mol
Mops
Nco+
Nco-
Ne-
Ocv+
Ocv-
Oil
Ox1a
Prg
Red
Sln+
Sln-
Slt+
Slt-
Slu+
Slu-
Sp2+
Sp2-
Throttle control motor (on throttle body)
Throttle position sensor (on throttle body)
Vehicle speed sensor (on left rear of trans)
Vsv (evap) (on top rear of engine)
Vta
Vta2

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Lexus IS 300 2002

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List of elements for Back-up Lamps Wiring Diagram for Lexus IS 300 2002:

(a/t)
(m/t)
B/u
Back-up light switch (integral to park/ neutral position switch)
Driver side j/b (behind lower left end of dash)
Gauge fuse 10a
Hot in on or start
I11
J1 f
J2 d
Junction connector j/c 15 (on left side of luggage compt, behind left fenderwell)
Junction connector j1, j2 (left side of eng compt, near eng control module)
Left rear combination light
Right rear combination light

Exterior Lamps Wiring Diagram, Sedan (1 of 2) for Lexus IS 300 2002

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List of elements for Exterior Lamps Wiring Diagram, Sedan (1 of 2) for Lexus IS 300 2002:

Alt fusible link 120a
Auto
Bulb
C10
Combination meter
Combination switch
Driver side j/b (behind lower left end of dash)
Engine room no.1 r/b (on right rear of engine compartment)
Gauge fuse 10a
H13
Head
High mounted stop light
Hot at all times
Hot in on or start
I12
I6 (left side of dash)
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, behind driver side j/b)
Junction connector j13 (above left rear fender- well)
Junction connector j14 (left side of luggage compt)
K12
Led
Left license plate lights
Left rear combination light
Light failure sensor (on left side of luggage compartment)
Noise filter (above left rear fender- well)
Off
Passenger side j/b (behind lower right side of dash)
Rear light warning light
Red
Right license plate lights
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, Sedan (2 of 2) for Lexus IS 300 2002

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List of elements for Exterior Lamps Wiring Diagram, Sedan (2 of 2) for Lexus IS 300 2002:

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)
Ec (rear of left front fender)
Engine room no. 1 r/b (on right rear of engine compartment)
Flasher relay
Gauge fuse 10a
H11
Haz
Hazard switch (a/c control assembly)
Hot at all times
Hot in on 0r start
I10
Ih (behind right kick panel)
Junction connector j/c 5 (behind left side of dash, above driver side j/b)
Junction connector j/c 7 (behind upper right 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

Exterior Lamps Wiring Diagram, Wagon (1 of 2) for Lexus IS 300 2002

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List of elements for Exterior Lamps Wiring Diagram, Wagon (1 of 2) for Lexus IS 300 2002:

(center rear of trunk) junction connector j/c 18
Alt fusible link 120a
Auto
Bm (lower left side of luggage compt)
Bn (lower right side of luggage compt)
C10
Combination meter
Combination switch
Driver side j/b (behind lower left end of dash)
Engine room no.1 r/b (on right rear of engine compartment)
Gauge fuse 10a
H13
Head
High mounted stop light
Hot at all times
Hot in on or start
I12
I6 (left side of dash)
Junction connector j/c 15 (on left side of luggage compt, behind left fenderwell)
Junction connector j/c 18 (center reat of trunk)
Junction connector j/c 5 (behind left side of dash, behind driver side j/b)
Junction connector j13 (above left rear fender- well)
Junction connector j17 (above left rear fenderwell)
K12
Left license plate light
Left rear combination light
Light failure sensor (on left side of luggage compartment)
Noise filter (above left rear fender- well)
Off
Passenger side j/b (behind lower right side of dash)
Rear light warning light
Rear side marker light
Red
Right license plate light
Right rear combination light
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, Wagon (2 of 2) for Lexus IS 300 2002

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List of elements for Exterior Lamps Wiring Diagram, Wagon (2 of 2) for Lexus IS 300 2002:

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)
Ec (rear of left front fender)
Engine room no. 1 r/b (on right rear of engine compartment)
Flasher relay
Gauge fuse 10a
H11
Haz
Hazard switch (a/c control assembly)
Hot at all times
Hot in on 0r start
I10
Ih (behind right kick panel)
Junction connector j/c 5 (behind left side of dash, above driver side j/b)
Junction connector j/c 7 (behind upper right 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 2002

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List of elements for Ground Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2002:

(sedan)
(wagon)
B3 (body harness, behind left rear wheelwell)
B4 (body harness, behind left rear wheel well)
B5 (body harness, under left front seat)
Back door courtesy switch and opener motor
Back door opener relay
Bj (base of left "b" pillar)
Body ecu
Center airbag sensor assembly
Cigarette lighter
Driver side j/b (behind lower left end of dash)
Flash relay
From splice b2 (diagram 2 of 3)
Front and rear wiper and washer switch (combination switch)
Fuel pump
High mounted stop light
I2 (dash harn, behind left side 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 door lock motor and door lock detection switch
Left rear power window control switch
Left remote control mirror
Left stop light (left rear combination light)
Left taillight (left rear combination light)
Light control switch and dimmer switch (combination switch)
Light failure sensor
Luggage compartment door key unlock switch
Luggage compartment door opener relay
Noise filter (def cds)
Noise filter (stop light)
Power seat control switch (driver's seat)
Power window master switch
Rear fog light switch
Rear side marker light
Remote control mirror switch
Right license plate light
Right stop light (right rear combination light)
Right taillight (right rear combination light)
Seat heater (driver's seat)
Sedan
Sedan only
Steering sensor
Theft deterrent ecu
To ground bm (diagram 2 of 3)
To j/c 5 (diagram 2 of 3)
Transponder key amplifier
Turn signal switch (combination switch)
Unlock warning switch
W/ power seat
W/o power seat
Wagon
Wagon only
Wireless door lock control receiver

Ground Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2002

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List of elements for Ground Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2002:

A/c dual pressure switch
A/c magnetic clutch and lock sensor
A/c single pressure switch
A/t
A12
A25
B2 (body harness, center of headliner)
B8 (body harness, center of liftgate)
Back door opener switch
Blower motor controller
Bm (lower left side of luggage compartment)
Bn (lower right side of luggage compartment)
Brake fluid level warning switch
Combination switch
D15
D22
E2 (engine harness, left front of engine compartment)
E3 (engine harness, left front of engine compartment)
E9 (engine harness, top left side of engine)
Ea (front side of intake manifold)
Ec (rear of left front fender)
Engine control module
Engine hood courtesy switch
Engine oil level sensor
Engine room no. 3 r/b
Fan no. 2 relay
From junction connector j/c 15 (diagram 1 of 3)
From pin g5, driver side j/b (diagram 1 of 3)
Front window deicer
Front wiper motor
Headlight cleaner control relay
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)
High mounted stop light
I3 (dash harness, behind left side of dash)
If (lower right center of dash, forward of center floor console)
Ig (behind upper right end of dash)
Igniter
Inner mirror
Junction connector j/c 1/2 (on left side of engine compartment, near engine control module)
Junction connector j/c 3 (on left side of engine compartment, near engine control module)
Junction connector j/c 4 (on left side of engine compartment, near engine control module)
Junction connector j/c 5 (behind left side of dash, behind driver side j/b)
Junction connector j/c 7 (behind upper right side of dash)
Left front fog light
Left front parking light
Left front side marker light
Left front side turn signal light
Left front turn signal light
Left headlight control ecu
Left license plate light
Left rear combination light
Left vanity light
M/t
Moon roof control ecu
Moon roof control switch
Multi- display
Personal light
Radiator fan motor
Radio and player
Rear window defogger
Rear wiper motor
Remote controller (navigation)
Right license plate light
Right rear combination light
Right vanity light
Skid control ecu
Stereo component amplifier
To ground bj (diagram 1 of 3)
W/ moon roof
W/o moon roof
Wagon only
Wire to fcc holder (in roof, near moon roof ecu)

Ground Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2002

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List of elements for Ground Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2002:

(body harness, under right front seat)
(wagon)
A/c control assembly
A/t
A18
Abs & ba & trac & vsc actuator
Abs & ba & trac actuator
B17
B28
B7 (body harness, behind left wheelwell)
B7 (body harness, under right front seat) (sedan)
Bk (under right front seat)
Center air bag sensor assembly
Combination meter
Data link connector (dlc) 3
Daytime running light relay (main)
Daytime running light relay no. 3
Daytime running light relay no. 4
Daytime running light resistor
Efi relay
Electronically controlled transmission pattern select switch
Engine room no. 1 r/b (right rear of engine compt)
Engine room no. 2 r/b (right rear of engine compt)
Glove box light
Headlight beam level control ecu
I5 (dash harn, behind right end of dash)
Ih (behind right kick panel)
Junction connector j/c 16 (above right rear fender- well)
Junction connector j/c 7 (behind upper right side of dash)
M/t
Navigation ecu
Passenger side j/b (behind lower right end of dash)
Power outage (luggage)
Power outlet
Power outlet relay
Power seat control switch (front passenger's seat)
Rheostat
Right buckle switch and seat belt warning occupant detection sensor
Right door lock control switch
Right front door lock motor and door lock detection switch
Right front fog light
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 mirror heater (remote control mirror)
Right rear door lock motor and door lock detection switch
Right rear power window control switch
Seat heater (front passenger's seat)
Seat heater switch (driver's seat)
Seat heater switch (front passenger's seat)
Sedan
Shift lock control ecu
Starter relay
Trac off switch
Trac off switch and snow switch
W/ power seats
W/ vsc
W/o power seats
W/o vsc
Wagon
Water temperature switch
Wireless door lock control receiver
Woofer

HEADLIGHTS

Headlamps Wiring Diagram (1 of 2) for Lexus IS 300 2002

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List of elements for Headlamps Wiring Diagram (1 of 2) for Lexus IS 300 2002:

(behind upper left side of dash, behind combination meter) diode (fog light)
+b1
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, integral with driver side j/b)
Bsub
Cltb
Clte
Clts
Combination switch
Computer data lines system
Dcty
Dimmer switch
Door fuse 20a
Driver side j/b (behind lower left end of dash)
Ecu-b2 fuse 7.5a
Exterior lights system
Flash
Fog lights
Foglight switch
Head
Headlight switch
High
Hot at all times
Hot in acc or run
Junction connector j/c 5 (behind left end of dash, behind driver side j/b)
Lgcy
Low
Lsr
Lswp
Mpx-b fuse 10a
Mpx1
Mpx2
Mpx3
Obd2
Off
Passenger side j/b (behind lower right end of dash)
Pcty
Radio 2 fuse 10a
Rcty
Red
Tail
Theft deterrent ecu (behind left end of dash)

Headlamps Wiring Diagram (2 of 2) for Lexus IS 300 2002

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List of elements for Headlamps Wiring Diagram (2 of 2) for Lexus IS 300 2002:

(on right rear of engine compartment) engine room no. 1 r/b
C10
Chg-
Combination meter
Daytime running light relay 3 & 4 (on right front of engine compt, beside air box)
Daytime running light resistor (on right side of eng compt, on strut tower)
Dimmer relay
Driver side j/b (behind lower left end of dash)
Drl 1 fuse 7.5a
Drl 2 fuse 30a
E1 (engine harness, right front of eng compt)
Ec (rear of left front fender)
Ecu-b2 fuse 7.5a
Ecu-ig fuse 10a
Engine room no. 1 r/b (on right rear of engine compartment)
Engine room no. 2 r/b (on right rear of engine compartment)
Engine room no. 3 r/b (on left side of engine compartment)
Fr fog fuse 15a
Fr fog relay
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
Hi beam indicator
Hot at all times
Hot in run or start
Ih (behind right kick panel)
Junction connector j/c 6 (behind left side of dash)
Junction connector j/c 7 (upper right side of dash)
Left fog light
Left headlight control ecu
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 j/b (behind lower right end of dash)
Passenger side junction block (behind lower right end of dash)
Red
Right fog light
Right headlight control ecu
Right high beam headlight

Headlamps Leveling Wiring Diagram for Lexus IS 300 2002

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List of elements for Headlamps Leveling Wiring Diagram for Lexus IS 300 2002:

A11
Anti-lock brakes system
Auto
Combination meter
Combination switch
Diode (fog light) (behind upper left side of dash, behind combination meter)
Driver side j/b (behind lower left end of dash)
Ecu-ig fuse 10a
End of dash)
Engine room no. 1 r/b (on right rear of engine compt)
Flash
Gauge fuse 10a
H10
Head
Head lp relay
Headlight beam level control ecu (behind left side of dash)
Headlight beam level control warning light
Headlight switch
High
Hot at all times
Hot in run or start
I10
Ih (behind right kick panel)
Junction connector j/c 5 (behind left a
Junction connector j/c 6 (behind left c
Junction connector j/c 7 (behind upper right 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
Side of dash)
Spdr
Tail
Theft deterrent ecu (behind left side of dash)
Wng

HORN

Horn Wiring Diagram for Lexus IS 300 2002

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List of elements for Horn Wiring Diagram for Lexus IS 300 2002:

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

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for Lexus IS 300 2002

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List of elements for Instrument Cluster Wiring Diagram for Lexus IS 300 2002:

(rear of left front fender) ec
A/c control assembly
A/t
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
Abs
Anti-lock brakes system
Anti-theft system
Beam
Beam level
Body ecu
Brake
Brake fluid level warning switch (in brake fluid reservoir)
Brl
Buzzer
C10
Charge
Combination meter
Computer data lines system
Cruise
Door
Driver side j/b (behind lower left end of dash)
Driver side side j/b (lower left end of dash)
Ect pwr
Engine control module (left front of engine compt)
Engine controls system & navigation system engine controls system
Engine oil level 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)
Gauge fuse 10a
Headlights system
Hot at all times
Hot in on or start
Hot w/ tail relay energized
Id (behind driver side j/b)
Ie (lower left center of dash)
Ig+
Ih (behind right kick panel)
Illumination
Interior lights system
J/c 5
J/c 6 (behind left side of dash)
J/c 7 (upper right side of dash)
Lbl
Lcd
M/t
Malfunction indicator lamp
Mol
Momentary fuel consumption
Mops
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 (lower right end of dash)
Pkb
Rear lights
Red
S15
S16
Seat belt
Security
Skid control ecu (behind left end of dash)
Slip
Snow
Sp1
Speedometer
Srs
Srs-b fuse 7.5a
Tachometer
Trac off
Turn lh
Turn rh
Vehicle speed sensor (left rear of transmission)
Volt
Vsc
Vscw
Water temp

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for Lexus IS 300 2002

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List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Lexus IS 300 2002:

(behind lower left side of dash) data link connector 3
Acc
B10
Becu
Bk (under right front seat)
Body ecu (behind lower left end of dash)
Bsub
Dclp
Dcty
Dome fuse 7.5a
Door fuse 20a
Driver side j/b (behind lower left end of dash)
Eb (on side of intake manifold)
Ecu-ig fuse 10a
Fenderwell)
G11
Gauge fuse 10a
Gnd
Gnd2
Hot at all times
Hot in on or acc
Hot in on or start
Ignition key cylinder light
Ih (behind right kick panel)
Ile
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
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
Sedan
Srs-b fuse 7.5
Wagon

Courtesy Lamps Wiring Diagram (2 of 2) for Lexus IS 300 2002

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List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Lexus IS 300 2002:

(s/d)
(w/g)
A/c control assembly (behind center of dash)
A12
A13
B2 (center front of roof)
B4 (behind left rear fenderwall)
Back door courtesy switch
Bj (base of left "b" pillar)
Bk (under right front seat)
Combination meter
Door
Engine control module (left front of engine compt)
Ie (forward of center console)
Interior light
J/c 11 (in left front door)
J/c 12 (sedan) j/c 17 (wagon) (above left rear fenderwall)
J/c 15 (left side of luggage compartment, behind left fenderwall)
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 speakr shelf)
Off
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 rear fenderwall)
Right vanity light
Sedan
Theft deterrent ecu (behind left end of dash)
Unlk
Wagon
Wire to ffc holder
Wireless door lock control receiver

Instrument Illumination Wiring Diagram for Lexus IS 300 2002

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List of elements for Instrument Illumination Wiring Diagram for Lexus IS 300 2002:

(a/t) 2
(a/t) 3
(m/t) 1
(m/t) 6
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
Electronically controled transmission pattern select switch
Glove box light
Head
Head- light cleaner switch
Hot at all times
I3 (dash harn, behind left side of dash)
Ih (behind right kick panel)
Ill-
J/c 5 (behind left side 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)
Multi- display
Off
Panel fuse 7.5a
Passenger side j/b (behind lower right end of dash)
Radio & player
Rear fog light switch
Red
Remote controller (navigation)
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 (a/t)
Traction "off" switch and snow switch (m/t)
Transmission control switch (a/t position illumination)

NAVIGATION

Navigation Wiring Diagram for Lexus IS 300 2002

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List of elements for Navigation Wiring Diagram for Lexus IS 300 2002:

(below left end of dash)
(m/t) k8 (a/t) e1
(right side of dash)
(upper right side of dash) j/c 10
+b1
2 (a/t) 1 (m/t)
3 (a/t) 2 (m/t)
A/t
A10
A14
A15
A16
A17
A18
A22
A25
Acc
Aui+
Aui-
Auo+
Auo-
B10
B11
B12
B13
B14
B15
B16
B17
B18
Bk (under right front seat)
Braided
C10
Clutch start switch
Combination meter
Ctx+
Ctx-
Data link connector (left side of dash)
Driver side j/b (left end of dash)
Driver side junction block
Ecu-ig fuse 10a
Fl+
Fl-
Gauge fuse 10a
Gnd
Gnd1
Gtx+
Gtx-
Hot at all times
Hot in accy or run
Hot in start
Hot in start or run
I10
I9 (behind center of dash)
Ie (front of center console)
If (under center of dash, forward of center console)
Ig+
J/c 1 & j/c 2 (left side of engine compartment, near engine control module)
J/c 1 & j/c 2 (left side of engine compt,near ecm
J/c 16 (above right rear fenderwall)
J/c 6 (behind left end of dash forward of instrument cluster)
J/c 6 (left side of dash, forward of instrument cluster)
Left tweeter
M/t
Multi-display
Mute
Navi
Navigation ecu (at right rear corner of luggage compt)
Park/neutral position switch (a/t) back up switch (m/t)
Parking brake switch (behind left side of dash)
Passenger side junction block (lower right end of dash)
Pkb
Pnk
Radio 2 fuse 10a
Re1
Red
Remote controller
Rev
Sedan
Sgnd1
Skid control ecu
Sp1
Spd
St1
Starter fuse 7.5a
Stereo component amplifier (mark levinson: right rear corner of luggage compt) (except: behind right side of dash)
Sync
Theft deterrent ecu (behind left end of dash)
Tv fuse 7.5a
Tx+
Tx-
Tx1+
Tx1-
Vehicle speed sensor (left rear of transmission)
Wagon

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2002

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List of elements for Power Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2002:

(behind lower right end of dash) passenger side junction block
(on right rear of engine compartment) engine room relay block 1
Abs 1 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
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 rr p/w fuse 20a
P/seat fuse 30a
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
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)
To power outlet fuse (diagram 3 of 3)
Turn/ hazard fuse 15a
Wiper/ washer system

Power Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2002

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List of elements for Power Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2002:

(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
Deicer relay
Door fuse 20a
Exterior lights system
Fr def fuse 20a
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
Ignition switch
J/c j10 (behind right side of dash)
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
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)
To power outlet relay (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 2002

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List of elements for Power Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2002:

(behind instrument cluster) i1
(behind lower left end of dash) driver side junction block
(behind right kick panel) ih
(under right front seat) bk
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 system
Anti-theft, exterior lights & headlights systems
Bk (right front floor panel)
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
Door dl fuse 15a
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)
From junction connector j10 (diagram 2 of 3)
From passenger side g junction block (diagram 1 of 3)
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)
L10
Navigation system
Passenger side junction block (behind lower right end of dash)
Pnk
Power outlet
Power outlet (luggage)
Power outlet fuse 15a
Power outlet relay
Power tops system
Power windows systems
Rr def relay
Tv fuse 7.5a

POWER DOOR LOCKS

Power Door Lock Wiring Diagram (1 of 3) for Lexus IS 300 2002

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List of elements for Power Door Lock Wiring Diagram (1 of 3) for Lexus IS 300 2002:

(below center of rear window, on speaker shelf) wireless door lock control receiver
(wagon) (sedan)
A10
Acc
Act+
Act-
Actd
B10
B13
B14
B15
B16
B19
B20
Back door opener switch
Bdsu
Becu
Body ecu (behind lower left end of dash, integral with driver side junction block)
Bsub
Bzr
Bzr2
C (sedan) (wagon)
C d
D c
Dcty
Door fuse 20a
Driver side junction block (behind lower left end of dash)
Ecu-ig fuse 10a
Flasher relay
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 side 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 2002

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List of elements for Power Door Lock Wiring Diagram (2 of 3) for Lexus IS 300 2002:

(above left rear fenderwell) j/c 17 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
(sedan)
(wagon)
(wagon) (sedan)
Back door operner relay luggage compartment door opener relay
Bdm
Bk (under right front seat)
Compt, near fuel filler door) (wagon)
Driver side junction block (behind lower left end of dash)
J/c 15 (on left side of luggage compt, behind left fenderwell)
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
Sedan
Unlk
Wagon

Power Door Lock Wiring Diagram (3 of 3) for Lexus IS 300 2002

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List of elements for Power Door Lock Wiring Diagram (3 of 3) for Lexus IS 300 2002:

(on side of intake manifold) eb
A/c control assembly
A12
A13
A20
A21
B10
B20
B21
Back door courtesy switch & opener motor
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
Hot at all times
Ih (behind right kick panel)
J/c 12 (above left rear fenderwell)
J/c 15 (left side of luggage compt, behind left fenderwell)
J/c 17 (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)
Sedan
Theft deterrent ecu (behind left end of dash)
Wagon

POWER MIRRORS

Electrochromic Mirror Wiring Diagram for Lexus IS 300 2002

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List of elements for Electrochromic Mirror Wiring Diagram for Lexus IS 300 2002:

(dash harn, behind left side of dash) i7
Bj (base of left "b" pillar)
Driver side j/b (lower left end of dash)
Ec+
Ec-
Ecu-ig fuse 10a
Hot in run or start
Inner mirror
Left remote control mirror
Right remote control mirror
Wire to fcc holder

Power Mirrors Wiring Diagram for Lexus IS 300 2002

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List of elements for Power Mirrors Wiring Diagram for Lexus IS 300 2002:

B12
Down
Driver side j/b (behind lower left end of dash)
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
Mhl
Mhr
Mvl
Mvr
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 2002

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List of elements for Heated Seats Wiring Diagram for Lexus IS 300 2002:

Bj (base of left "b" pillar)
Bk (under right front seat)
Driver side j/b (behind lower left end of dash)
Driver's seat heater
Driver's seat heater switch
Hot in on or start
Ih (behind right kick panel)
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 2002

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List of elements for Power Seats Wiring Diagram for Lexus IS 300 2002:

Bj (base of left "b" pillar)
Bk (under right front seat)
Down
Driver side j/b (behind lower left end of dash)
Driver's power seat control switch
Front
Front vertical control motor (under seat)
G10
Hot at all times
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 2002

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List of elements for Power Top/Sunroof Wiring Diagrams for Lexus IS 300 2002:

(base of left "b" pillar)
(on front center of roof) moon roof control ecu
B1 (front of roof)
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
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 30a
Solid state

POWER WINDOWS

Power Window Wiring Diagram for Lexus IS 300 2002

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List of elements for Power Window Wiring Diagram for Lexus IS 300 2002:

(behind lower left end of dash) driver side j/b
(behind right kick panel) ih
(under right front seat) bk
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
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 end 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
Sedan
Sgnd
Wagon

RADIO

Radio Wiring Diagrams, Sedan for Lexus IS 300 2002

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List of elements for Radio Wiring Diagrams, Sedan for Lexus IS 300 2002:

Acc
Ant
Antenna amplifier (behind center of dash)
Aui+
Aui-
Auo+
Auo-
B12
Cdl+
Cdl-
Cdr+
Cdr-
Ctx+
Ctx-
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-
Gnd
Gtx+
Gtx-
Hot at all times
Hot in acc or on
If (lower right center of dash, forward of center floor console)
J/c 10 (behind upper upper right side of dash)
Left front door speaker
Left rear speaker & woofer
Left tweeter
Multi-display
Mute
Navi mute
Navigation ecu (right rear of luggage compt.)
Nca
Passenger side j/b (behind lower right end if dash)
Pnk
Radio & player
Radio fuse 1 20a
Radio fuse 2 10a
Rear speaker
Red
Right front door speaker
Right rear speaker & woofer
Right tweeter
Rr+
Sgnd
Stereo component amplifier (behind right end of dash)
Tx+
Tx-
W/ navigation
W/o navigation
Wfl+
Wfl-
Wfr+
Wfr-
Woofer

Radio Wiring Diagrams, Wagon for Lexus IS 300 2002

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List of elements for Radio Wiring Diagrams, Wagon for Lexus IS 300 2002:

(below right end of dash) i10
Acc
Amp+
Ant
Antenna amplifier (behind center of dash)
Aui+
Aui-
Auo+
Auo-
B12
Bk (under right front seat)
Cdl+
Cdl-
Cdr+
Cdr-
Ctx+
Ctx-
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-
Gnd
Gtx+
Gtx-
Hot at all times
Hot in acc or on
I10 (below right end of dash)
If (lower right center of dash, forward of center floor console)
J/c 10 (behind upper upper right side of dash)
J/c 13 (above left rear fender- well)
J/c 16 (above right rear fender- well)
Left front door speaker
Left rear speaker
Left squawker
Left tweeter
Mtr
Multi-display
Mute
Navi mute
Navigation ecu (right rear of luggage compt.)
Nca
Passenger side j/b (behind lower right end if dash)
Pnk
Radio & player
Radio fuse 1 20a
Radio fuse 2 10a
Red
Right front door speaker
Right rear speaker
Right squawker
Right tweeter
Rl+
Rl-
Rr+
Rr-
Sgnd
Stereo component amplifier (behind right end of dash)
Tx+
Tx-
W/ navigation
W/o navigation
Wf+
Wf-
Wfl+
Wfl-
Wfr+
Wfr-
Woofer (right rear of luggage compt.)

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram for Lexus IS 300 2002

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List of elements for Shift Interlock Wiring Diagram for Lexus IS 300 2002:

(behind left end of dash)
(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)
Gauge fuse
H10
Hot at all times
Hot in acc or on
Hot in on or start
I13
Ih (behind right kick panel)
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 switch (right side of trans)
Passenger side j/b (behind lower right end of dash)
Radio 2 fuse
Shift lock control ecu (right side of trans shift lever)
Shift lock control switch
Shift lock solenoid
Sls+
Sls-
Stop fuse
Stoplight switch
Stp

STARTING/CHARGING

Charging Wiring Diagram for Lexus IS 300 2002

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List of elements for Charging Wiring Diagram for Lexus IS 300 2002:

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 no.1 r/b (on right rear of engine compt)
Gauge fuse 10a
Generator
Hot at all times
Hot in on or start
Ie (lower left center of dash, forward of center floor console)
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 2002

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List of elements for Starting Wiring Diagram for Lexus IS 300 2002:

A/t
Acc
Am2
Am2 fuse 20a
Battery
Ce3
Clutch starter switch
Driver side j/b (behind lower left end of dash)
Engine control module (on left front of eng compt, in protective case)
Engine room no. 1 r/b (on right rear of engine compartment)
Ignition switch
Ih (behind right kick panel)
Junction connector j/c 19 (right side of dash)
Lock
M/t
Main fuse 40a
Nca
Park/neutral position switch (on right side of transmission)
St2
Sta
Start
Starter
Starter fuse 7.5a
Starter relay

SUPPLEMENTAL RESTRAINTS

Supplemental Restraint Wiring Diagram for Lexus IS 300 2002

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List of elements for Supplemental Restraint Wiring Diagram for Lexus IS 300 2002:

(at base of left "b" pillar) left side air bag sensor
(under right front seat) bk
+sl
+sr
-sl
-sr
A11
Acc
Air bag squib (front passenger's air bag assembly)
Air bag squib (steering wheel pad)
Bj (base of left "b" pillar)
Bk (under right front seat)
Center air bag sensor assembly (below center of dash, on transmission tunnel)
Combination meter
Data link connector 3 (partial) (behind lower left side of dash)
Driver side j/b (behind lower left end of dash)
Engine controls system
Esl
Esr
Gsw2
Hot at all times
Hot in acc or on
Hot in on or start
Icl+
Icl-
Icr+
Icr-
Ig2
Ign fuse 7.5a
J/c 13 (above left rear fenderwell)
J/c 15 (on left side of luggage compt, behind left fenderwell)
J/c 5 (behind left end of dash, behind driver side j/b)
Lbe+
Left buckle switch (inside left front seat belt buckle)
Left curtain shield air bag squib
Left front air bag sensor (on left side of radiator support)
Left pretensioner
Left side air bag squib
Others
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 curtain shield air bag squib
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
Sedan w/ power seat
Sfl+
Sfl-
Sfr+
Sfr-
Sil
Spiral cable
Srs warning indicator
Srs- acc fuse 10a
Srs-b fuse 7.5a
Ssl+
Ssl-
Ssr+
Ssr+ esr
Ssr-
Vupl
Vupr

TRANSMISSION

A/T Wiring Diagram (1 of 2) for Lexus IS 300 2002

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List of elements for A/T Wiring Diagram (1 of 2) for Lexus IS 300 2002:

(engine harn, right front of engine compt)
(engine harn, top left side of engine)
(near ecm) j/c 1, j/c 2
+b2
+bm
A/c control assembly
A/t shift main switch (integral to combination switch)
B11
Batt
Computer data lines system
Data link connector 3 (behind lower left side of dash)
Driver side j/b (behind lower left end of dash)
E01
E02
E10
Ea (front of intake manifold)
Eb (center side of intake manifold)
Ec (left front fender apron)
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)
Ih (right side of firewall)
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)
Me01
Mpx-
Mpx1
Mpx2
Mrel
Passenger side j/b (behind lower right end of dash)
Pwr
Red
Sftd
Sftu
Sil
Snow
Sta
Starting/ charging system
Stop fuse 15a
Stoplight switch (above brake pedal, on bracket)
Stp
Tha
Thw
Wfse

A/T Wiring Diagram (2 of 2) for Lexus IS 300 2002

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List of elements for A/T Wiring Diagram (2 of 2) for Lexus IS 300 2002:

(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)
E03
E8 (top left side of engine)
Ea (front of intake manifold)
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)
Mil
Nca
Nco+
Nco-
O/d direct clutch speed sensor (left side of transmission)
Oil
Passenger side j/b (behind lower right end of dash)
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) (below front right side of center console)
Transmission control switch (l-2) (below front right side of center console)
Vehicle speed sensor (left rear of transmission)
Vpa
Vpa2
Vta
Vta2