All Wiring Diagrams for Lexus ES 300 2001

AIR CONDITIONING

Automatic A/C Wiring Diagram (1 of 2) for Lexus ES 300 2001

List of elements for Automatic A/C Wiring Diagram (1 of 2) for Lexus ES 300 2001:

(dash harn, center of dash) i23
(dash harn, top right side of dash)
(engine compt harn, left side of engine compt)
(on left side of luggage compartment) telephone transceiver & speaker relay
A/c
A/c ambient temperature sensor (behind right front grille)
A/c control assembly (under center of dash, behind center console)
A/c dual pressure switch (on refrigerant line, near receiver-drier, integral to a/c triple pressure switch)
A/c room temperature sensor (right of steering column)
A/c solar sensor (on top left side of dash)
A/c thermistor (behind right side of dash)
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
Ac1
Acmg
Aif
Air
Air inlet control servo motor (under right side of dash, behind glove compartment)
Air mix control servo motor (behind center of dash, forward of center console)
Amc
Amh
Anti-theft system
B/l
B10
B11
B12
B13
B14
B15
B16
B26
B27
Blw
Def
Defogger system
Ecu-b fuse 10a
Engine control module (behind right side of dash)
Engine room j/b (on left side of engine compartment)
F/d
Face
Foot
G108 (left radiator side support)
G206 (left dash panel brace)
Gnd
Hot at all times
I10
Ig+
Ign
Illum
Instrument cluster system
Instrument panel j/b (behind left side of dash)
Interior lights system
J/c 15
J/c 18 & 19 (behind right side of dash)
J/c 20 & 21 (behind right side of dash)
J/c 28, j/c 29 (right side of dash)
J/c 30 (behind right side of dash)
Lock
Pnk
Psw
Rdfg
Red
Secu
Spd
Tach
Tam
Teli
Thwo
Tpi
Tw2
V10
Ver 1

Automatic A/C Wiring Diagram (2 of 2) for Lexus ES 300 2001

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List of elements for Automatic A/C Wiring Diagram (2 of 2) for Lexus ES 300 2001:

(a/c harn, behind left side of dash)
(dash harn, behind combination meter)
(left dash panel brace) g206
A/c blower motor linear controller (behind left side of dash)
A/c condenser fan motor (in right front of engine compartment)
A/c diode (near rear of engine room j/b)
A/c magnetic clutch & lock sensor (on a/c compressor assembly)
A/c single pressure switch (on refrig line, near receiver- drier, integral to a/c triple pressure switch)
Air vent mode control servo motor (behind dash, between steering column & center console)
Alt fusible link 100a
B/l
Blower motor (behind right side of dash, behind glove compartment)
Blower resistor (behind left side of dash)
Cds fuse 30a
Control circuit
Def
Ecu-ig fuse 15a
Engine main relay
Engine room j/b (on left side of engine compart- ment)
Engine room j/b (on left side of engine compartment)
Engine room r/b (in engine room j/b, on left side of engine compartment)
F/d
Face
Fan 1 relay
Fan 2 relay
Fan 3 relay
Foot
Fusible link block (in engine room j/b, on left side of engine compartment)
G108 (left radiator side support)
Gnd
Heater fuse 10a
Heater relay
Hot at all times
Hot in on or start
Htr fusible link 50a
I4 (a/c harn, behind left side of dash)
Instrument panel j/b (behind left side of dash)
J/c 20 & 21 (behind right side of dash)
J13
Mg clt relay
Position switches
Radiator fan m0tor (in left front of engine compart- ment)
Rdi fuse 30a
Red
Water temp switch 1 (in left front of engine compart- ment)
Water temperature switch 2 (on top left rear of engine)

ANTI-LOCK BRAKES

Anti-lock Brake Wiring Diagrams, with Traction Control for Lexus ES 300 2001

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List of elements for Anti-lock Brake Wiring Diagrams, with Traction Control for Lexus ES 300 2001:

(a: a8)
(b: a7)
(behind left kick panel) j/c 1
A10
A11
A12
A19
A20
A21
Abs & traction actuator (in right front of engine compt)
Abs & traction ecu (behind right side of dash)
Abs fuse 60a
Abs ind
Abs motor relay
Abs sol relay
Ast
C10
Combination meter
Combination meter (speedometer)
Csw
D/g
Data link connector 1 (near right front corner of engine)
Data link connector 3 (under left side of dash)
Ecu-ig fuse 15a
Efi+
Efi-
Electronic suspension system
Engine control module (behind right side of dash)
Engine room relay block 3 (in right front of engine compt, on radiator upper support)
Fl+
Fl-
Fr+
Fr-
Fro
G109 (right radiator support)
G206
Gauge fuse 10a
Gnd1
Gnd2
Gnd3
Hot at all times
Hot in on or start
Ig1
Ind
Instrument panel junction block (behind left side of dash)
Instrument panel junction block (behind left side of dash, above kick panel)
J/c 1 (behind left kick panel)
J/c 15 (under left side of radio)
J/c 27 (right side of dash)
J/c 3 (behind left kick panel)
J/c 3 (left side of dash)
J/c 30 (behind right side of dash)
J/c 4 (left side of dash)
J/c 8, j/c 9 (behind left side of dash)
Left front abs speed sensor
Left rear abs speed sensor
Neo
Red
Right front abs speed sensor
Right rear abs speed sensor
Rl+
Rl-
Rr+
Rr-
Rro
Sflh
Sflr
Sfrh
Sfrr
Sil
Slip ind
Smc1
Smc2
Spi
Src1
Src2
Srlh
Srlr
Srrh
Srrr
Stop fuse 15a
Stoplight switch (on brake pedal bracket)
Stp
Trac off ind
Trac off switch
Trc+
Trc-

Anti-lock Brake Wiring Diagrams, with VSC (1 of 2) for Lexus ES 300 2001

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List of elements for Anti-lock Brake Wiring Diagrams, with VSC (1 of 2) for Lexus ES 300 2001:

A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A41
A42
A43
A46
A49
Abs & trac & vsc actuator (in right front of engine compt)
Abs & trac & vsc ecu (behind right side of dash)
Abs fuse 60a
Abs motor relay
Abs sol relay
Ast
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
Braid
Engine room r/b 3 (right front of engine compt, on radiator upper support)
Fl+
Fl-
Fr+
Fr-
Fss
G109 (right radiator support)
Grd1
Grd2
Hot at all times
Left front abs speed sensor
Master cylinder pressure sensor (on right front of engine compt)
Pmc
Red
Right front abs speed sensor
Sflh
Sflr
Sfrh
Sfrr
Smc1
Smc2
Smv1
Smv2
Src1
Src2
Srlh
Srlr
Srrh
Srrr
Vcm

Anti-lock Brake Wiring Diagrams, with VSC (2 of 2) for Lexus ES 300 2001

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List of elements for Anti-lock Brake Wiring Diagrams, with VSC (2 of 2) for Lexus ES 300 2001:

(behind right side of dash) engine control module
(below center console) abs deceleration sensor
A12 c7
A13
A14 e7
A20
A21
A47
A48
Abs & trac & vsc ecu (behind right side of dash)
Abs ind
Absorber control ecu (behind left sideof dash)
B16 e8
B4 c8
Braid
Brake fluid level warning switch (in brake fluid reservoir)
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
C24
C9 c9
Ccs
Combination meter
Cruise control system
Csw
D/g
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D3 c10
D6 c10
D7 c10
Data link connector 1 (near right front corner of engine)
Data link connector 3
Data link connector 3 (under left side of dash)
Ecu-ig fuse 15a
Eng+
Eng-
Exo
Fro
G206
Gauge fuse 10a
Ggnd
Gl1
Gl2
Grd3
Grd4
Gss
Gyaw
Hard
Headlight beam level control ecu (behind left side of dash)
Hot at all times
Hot in on or start
I22 (dash harn, right end of dash)
I3 (dash harn, behind center of dash)
Ig1
Ind
Instrument cluster system (brake warning indicator)
Instrument panel j/b (behind left side of dash, above kick panel)
J/c 1 (behind left kick panel)
J/c 15 (behind center of dash)
J/c 27 (behind right side of dash)
J/c 3 (behind left kick panel)
J/c 30 (right side of dash)
J/c 4 (behind left side of dash)
Lbl-
Lblo
Left rear abs speed sensor
Neo
Park/ neutral position switch
Pnk
Red
Right rear abs speed sensor
Rl+
Rl-
Rr+
Rr-
Rro
Sil
Slip ind
Sp1
Spdr
Speedometer
Ss1+
Ss1-
Steering sensor (behind left side of dash)
Stop fuse 15a
Stoplight switch (on bracket, above brake pedal)
Stp
Trc+
Trc-
Vgs
Vsc ind
Vsc off ind
Vsc off switch
Vsc warning buzzer (behind center of dash)
Vscw
Vys
Yaw
Yaw rate sensor (below center console)
Yaw2
Yss

Anti-lock Brake Wiring Diagrams, without Traction Control for Lexus ES 300 2001

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List of elements for Anti-lock Brake Wiring Diagrams, without Traction Control for Lexus ES 300 2001:

(a: a5) (b: a6)
(in right front of engine compt) abs actuator
(right radiator side support)
A22
A23
Abs ecu (behind right side of dash)
Abs fuse 60a
Abs ind
Abs motor relay
Abs sol relay
C10
Combination meter
D/g
Data link connector 1 (near right front corner of engine)
Data link connector 3 (under left side of dash)
Ecu-ig fuse 15a
Engine room r/b 3 (in right front of engine compt, on radiator upper support)
Fl+
Fl-
Fr+
Fr-
G109
G206
Gauge fuse 10a
Gnd1
Gnd2
Hot at all times
Hot in on or start
Ig1
Instrument panel j/b (behind left side of dash)
J/c 1 (behind left kick panel)
J/c 15 (behind center of dash)
J/c 27 (right side of dash)
J/c 3 (left side of dash)
J/c 30 (behind right side of dash)
J/c 4 (left side of dash)
Left front abs speed sensor
Left rear abs speed sensor
Op8
Red
Right front abs speed sensor
Right rear abs speed sensor
Rl+
Rl-
Rr+
Rr-
Sflh
Sflr
Sfrh
Sfrr
Sil
Srlh
Srlr
Srrh
Srrr
Stop fuse 15a
Stoplight switch (on bracket, above brake pedal)
Stp

ANTI-THEFT

Anti-theft Wiring Diagram for Lexus ES 300 2001

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List of elements for Anti-theft Wiring Diagram for Lexus ES 300 2001:

(left side of dash) junction connector j10/j11
+b1
+b2
A/c control assembly
B14
Cty
Diode (behind right side of dash, above kick panel)
Dome fuse 7.5a
Door fuse 25a
Door locks system
Dswd
Dswh
Dswl
Dswp
E (grd)
Ecu-ig fuse 15a
Engine controls system
Engine hood courtesy switch
Engine room junction block (on left side of engine compartment)
Exterior lights system
G106 (behind left headlight)
G109 (right radiator support)
G200 (left kick panel)
G206
G308
Gnd
Head
Headlights system
Horn
Horn fuse 10a
Horn relay
Horns system
Hot at all times
Hot in run or start
I13
I23
Ind
Instrument panel junction block (behind left side of dash, above kick panel)
Integration relay
J10
J11
J12
J34
J35
J5 junction connector j5/j6 (left side j6 of dash)
Junction connector j/c 15 (behind center of dash)
Junction connector j/c 2 (behind left kick panel)
Junction connector j/c 34 (behind right kick panel)
Junction connector j/c 37 (lower left "b" pillar)
Junction connector j10/j11 (left side of dash)
Junction connector j16 (center of dash)
Junction connector j34/j35 (behind right kick panel)
K10
Ksw
Left front door courtesy switch
Left rear door courtesy switch
Lswd
Lswp
Lswr
Lug
Luggage compartment key unlock switch
Luggage compartment light switch & door opener motor
Red
Right front door courtesy switch
Right rear door courtesy switch
S12
Secu
Sh-
Tail
Theft deterrent ecu (under center of dash, forward of center console)
Theft deterrent horn (in right rear corner of engine compartment)
Trunk, tailgate fuel doors system
Trunk, tailgate, fuel doors system
Tsw
Ul2
Ul3
Warning systems

COMPUTER DATA LINES

Computer Data Lines for Lexus ES 300 2001

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

(behind center of dash)
(behind left kick panel) j/c 3
(behind right side of dash) j/c 24
(dash harn, behind left side of dash)
(right side of surge tank) g120
(w/ abs & trac)
(w/ abs)
15a
7.5a
A19
A20
A23
A47
A48
Abs
Abs (w/ traction)
Abs (w/ vsc)
Abs ecu/ abs & traction ecu/ abs & ba & trac & vsc ecu (behind right side of dash)
Abs ind
Abs sol relay
Absorber control ecu (behind left side of dash)
Bat
C10
C22
Center air bag sensor assembly (under center of dash, forward of center console)
Combination meter
Cruise control ecu (behind left side of dash)
D/g
Data link connector 1 (near right front corner of engine)
Data link connector 3 (under left side of dash)
Efi fuse
Efi relay
Engine control module (behind right side of dash)
Engine room j/b (on left side of engine compt)
Engine room r/b 3 (in right front of engine compt, on radiator upper support)
G120 (right side of surge tank)
G206
Hot at all times
I15
Instrument panel j/b (behind left side of dash)
J/c 1 (behind left kick panel)
J/c 1 (left kick panel)
J/c 15
J/c 25 (right side of dash)
J/c 30 (right side of dash)
J/c 8, j/c 9 (behind left side of dash)
Obd fuse
Pnk
Sil
Srs ind
Te1
Tem

COOLING FAN

Cooling Fan Wiring Diagram for Lexus ES 300 2001

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

(left radiator side support)
(on left side of engine compt) engine room junction block
2000, 01 1998, 99
A/c condenser fan motor
A/c control assembly (center of dash)
A/c diode (near rear of engine room junction block)
A/c single pressure switch (on refrigerant line, near receiver-drier)
Alt fuse 100a
Cds fuse 30a
Ecu-ig fuse 15a
Engine control module (behind right side of dash)
Engine main relay
Engine room relay block (in engine room junction block)
Fan relay
Fusible link block (in engine room junction block)
G108
Hot at all times
Hot in run or start
Instrument panel junction block (behind left side of dash)
J13
Mgcr
Radiator fan motor
Rdi fuse 30a
Red
Water temperature switch 1 (in left front of engine compt)
Water temperature switch 2 (on top left rear of engine)

CRUISE CONTROL

Cruise Control Wiring Diagram for Lexus ES 300 2001

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List of elements for Cruise Control Wiring Diagram for Lexus ES 300 2001:

(left kick
(right side of instrument panel)
(under left
Abs & traction ecu (behind right side of dash)
C10
Cancel
Ccs
Cms
Combination meter
Combination switch
Cruise
Cruise control actuator (left center of engine compt)
Cruise control ecu (left side of dash)
Cruise control ind
Cruise control switch
D13
Data link connector 1 (right front of engine compt)
Data link connector 3
Ect
Ecu-ig fuse 15a
Engine control module (behind right side of dash)
F j29
G201
G202
Gauge fuse 10a
Gnd
Hot at all times
Hot in on & start
I/p junction block (left side of dash)
Idl
Idlo
J/c 1 (left kick panel)
J/c 15 (behind center of dash)
J/c 17 (top center of dash)
J/c 2
J/c 26 (right side of dash)
J/c 27 (right side of dash)
J/c 28, j/c 29 (right side of dash)
J/c 3 (left kick panel)
J/c 30 (right side of dash)
J/c 4 (left side of dash)
J/c 40 (right side of dash)
J/c 8, j/c 9 (left side of dash)
J28
J8 a
Od1
P/n
Panel)
Park/neutral position switch (on top of transaxle)
Resume/ accel
Set/ coast
Side of dash)
Sp1
Spd
Speedometer
Stop fuse 15a
Stoplight switch
Stp-

DEFOGGERS

Defogger Wiring Diagram for Lexus ES 300 2001

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

(behind right side of dash)
2000, 2001 w/ driving position memory
2000, 2001 w/o driving position memory
A14
Def fuse 40a
Defogger relay
G202 (left end of dash)
G203 (right kick panel)
G206 (center of instrument panel)
Gnd
Heater
Heater fuse 10a
Hot at all times
Hot in start or on
Instrument panel junction block (behind left side of dash)
J/c 15 (behind center of dash)
J/c 20
J/c 36 (in left front door)
J12
J13
Left remote control mirror
Mirror heater fuse 10a
Noise filter
R-def
R16
R17
Rear window defogger
Rear window defogger switch (a/c control assembly)
Right remote control mirror

ELECTRONIC SUSPENSION

Electronic Suspension Wiring Diagram for Lexus ES 300 2001

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List of elements for Electronic Suspension Wiring Diagram for Lexus ES 300 2001:

(behind left kick panel) j/c 1
(behind left kick panel) j/c 3
(dash harn, behind upper right side of dash)
(dash harn, upper left end of dash) i15
(dash harness, upper right center of dash) i21
A19
A48
Abs & traction & vsc ecu (behind right side of dash)
Abs & traction ecu (behind right side of dash)
Absorber control ecu (behind left side of dash)
Absorber control switch
Af j/c 28 & j/c 29 (behind right side of dash)
B6 (body harn, right front door sill)
Data link connector 1 (near right front corner of engine)
Data link connector 3 (under left side of dash)
Ecu-ig fuse 15a
Ecu1
Ecu2
Engine control module (behind right side of dash)
Exo
Fa+
Fa-
Fb+
Fb-
Fro
Fss
G109 (right radiator support)
G121 (center of firewall)
G206
G305 (lower right "b" pillar)
G308
Gnd
Hard
Headlight beam level control ecu (behind left side of dash)
Hot at all times
Hot in on & start
I22
Instrument panel j/b (behind left side of dash)
J/c 15 (behind center of dash)
J/c 24 (behind right side of dash)
J/c 27 (behind right side of dash)
J/c 3 (behind left kick panel)
J/c 3 (left kick panel)
J/c 37 (lower left "b" pillar)
J/c 8 & j/c 9 (behind left side of dash)
Left front absorber control actuator (left rear corner of engine compartment)
Left rear absorber control actuator (left front corner of luggage compartment)
Neo
Pnk
Ra+
Ra-
Rb+
Rb-
Red
Red d
Right front absorber control actuator (right rear corner of engine compartment)
Right rear absorber control actuator (right front corner of luggage compartment)
Rro
Spdr
Ss1
Ss2
Steering sensor (behind left side of dash)
Stop fuse 15a
Stoplight switch (on bracket, above brake pedal)
Stp
Sw1
Sw2
Tach
Tem
Upper left end of dash)
W/ vsc
W/o vsc

ENGINE PERFORMANCE

3.0L

3.0L, Engine Performance Wiring Diagrams (1 of 4) for Lexus ES 300 2001

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List of elements for 3.0L, Engine Performance Wiring Diagrams (1 of 4) for Lexus ES 300 2001:

(dash harn, right side of dash)
(engine harn, right front side of engine)
(on top left rear of engine) left camshaft timing oil control valve
(on top right rear of engine) right camshaft timing oil control valve
(on top right side of engine) j/c 39
(on transaxle) counter gear speed sensor
Aci1
Acis
Afl+
Afl-
Afr+
Afr-
Crankshaft position sensor (on left front side of engine)
Dsl
E01
E02
E03
E04
E05
E10
E11
E2g
Electronically controlled transmission solenoid (in transaxle)
Engine control module (behind right side of dash)
Evp1
Fuel injectors
G120 (rear side of surge tank)
G120 (right side of surge tank)
Hafl
Hafr
Idle air control valve (top right rear of engine)
Igf
Ignition coils and ignitors
Igt1
Igt2
Igt3
Igt4
Igt5
Igt6
J/c
J/c 26 (behind right side of dash)
Knkl
Knkr
Knock sensor 1 (top right side of engine)
Knock sensor 2 (top left side of engine)
Left vvt sensor (on left rear of engine)
Mass airflow meter (near air cleaner housing, on air duct)
Nc+
Nc-
Ne+
Ne-
Noise filter (in i/p j/b)
Oc1+
Oc1-
Oc2+
Oc2-
Pnk
Power steering oil pressure switch (in right rear of engine compt)
Red
Right vvt sensor (on right rear of engine)
Rso
Sl1+
Sl1-
Sl2+
Sl2-
Tha
Tho
Thw
Vta1
Vv1+
Vv2+

3.0L, Engine Performance Wiring Diagrams (2 of 4) for Lexus ES 300 2001

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List of elements for 3.0L, Engine Performance Wiring Diagrams (2 of 4) for Lexus ES 300 2001:

(dash harn, right side of dash)
(engine harn, right front side of engine)
(in engine room j/b) engine room r/b
(left front of engine compt) engine room r/b 2)
A/f htr fuse 25a
A/f htr relay
Acc
Air fuel ratio sensor (bank 1 sensor 1) (in right exhaust manifold)
Air fuel ratio sensor (bank 2 sensor 1) (in left exhaust manifold)
Am2
C10
Cir opn relay
Efi fuse 15a
Efi relay
Engine room j/b (on left side of engine compt)
Engine room r/b (in engine room j/b)
Fuel pump (in fuel tank)
G108 (left radiator side support)
G120 (rear side of surge tank)
G308
Heated oxygen sensor (bank 1 sensor 2) (in exhaust manifold, after twc)
Hot at all times
I11
I5 (dash harn, right side of dash)
Ig2
Ign fuse 5a
Ignition switch
Instrument panel j/b (behind left side of dash)
J/c 24 (behind right side of dash)
J/c 25 (behind right side of dash)
J/c 28, j/c 29 (behind right side of dash)
J/c 3 (behind left kick panel)
J/c 31, j/c 32 (behind right side of dash)
J/c 37 (lower left "b" pillar)
J/c 8, j/c 9 (behind left side of dash)
J28
J28 b
J31 d
J8 b
J9 c
Lock
P/n
Park/neutral position switch (on transaxle)
Red
St2
Start
Starter fuse 5a
Starting/ charging system

3.0L, Engine Performance Wiring Diagrams (3 of 4) for Lexus ES 300 2001

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List of elements for 3.0L, Engine Performance Wiring Diagrams (3 of 4) for Lexus ES 300 2001:

(behind right side of dash) j/c 25
(dash harn, right side of dash)
A/c control assembly
A/t indicator light switch (integral to park/ neutral position switch) (on transaxle)
Absorber control ecu
Anti-lock brakes system
Braided
C10
Combination meter
E4 (engine harn, right front side of engine)
Engine coolant temperature sensor (on top front of engine)
G200 (left kick panel)
G206 (right instrument panel brace)
Gauge fuse 10a
H10
Hot in on or start
Instrument panel j/b (behind left side of dash)
J/c 16 (behind top center of dash)
J/c 17 (behind top center of dash)
J/c 28, j/c 29
J/c 28, j/c 29 (behind right side of dash)
J/c 30 (behind right side of dash)
J/c 4 (behind left side of dash)
J/c 40 (behind right side of dash)
J28
J28 f
J29
Malf ind lamp
O/d main switch
O/d off ind
Pnk
Ptnk
Red
Speedometer
Tacho- meter
Throttle position sensor (on throttle body)
Vapor pressure sensor (above left rear wheelwell)
Vcc
Vsv (acis) (on top center of engine)
Vsv (acm) (on right front of engine compt)
Vsv (canister closed valve) (on left rear of engine compt)
Vsv (evap) (on top front of engine)
Vsv (intake air control) (on center top of engine)
Vsv (pressure switching valve) (above left rear wheelwell)

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

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

(behind center of dash) j/c 15
(behind left kick panel) j/c 1
(behind right side of dash) j/c 26
(dash harn, right side of dash)
(near right front corner of engine) data link connector 1
(under left side of dash) data link connector 3
A/c
A/c system
Acm1
Acmg
Anti-lock brakes system
Anti-theft system (theft deterrent ecu)
Bat
Batt
Braided
Ccv
Code
Cooling fans system
Cruise control ecu
Electronically controlled transmission solenoid (in transaxle)
Els
Els2
Eng+
Eng-
Engine control module (behind right side of dash)
Eom
G120 (rear side of surge tank)
G202 (left end of dash)
G206
Gnd
Hot at all times
Hot w/defogger relay energized
Hot w/taillight relay energized
Hts
I11
I5 (dash harn, right side of dash)
Idlo
Igsw
Imld
Instrument panel j/b
Instrument panel j/b (behind left side of dash)
J/c 15 (behind center of dash)
J/c 18, j/c 19 (behind right side j19 of dash)
J/c 24 (behind right side of dash)
J/c 27 (behind right side of dash)
J/c 8, j/c 9 (behind left side of dash)
J10
J18
Ksw
Mirror- heater fuse 10a j11
Mrel
Neo
Nsw
Nt+
Nt-
Obd fuse 7.5a
Od1
Odlp
Odms
Oxs
Pnk
Ptnk
Red
Rxck
Sil
Slt+
Slt-
Spd
Sta
Stop fuse 15a
Stoplight switch (on bracket, above brake pedal)
Stp
Tach
Tail fuse 10a
Tbp
Te1
Thwo
Transponder key amplifier (in steering column)
Trc+
Trc-
Turbine speed sensor (on transaxle housing)
Txct
Unlock warning switch

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Lexus ES 300 2001

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

(body harn, center rear of trunk lid) b14
(body harn, left side of trunk lid) b9
B/u
Back-up light switch (integral to park/ neutral position switch)
G308
Gauge fuse 10a
Hot in on or start
Instrument panel j/b (behind left side of dash)
J/c 28 (right side of dash)
J/c 28, j/c 29 (right side of dash)
J/c 37 (base of left "b" pillar)
J28
J29
Left rear combination light
Right rear combination light
S13

Exterior Lamps Wiring Diagram for Lexus ES 300 2001

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List of elements for Exterior Lamps Wiring Diagram for Lexus ES 300 2001:

(1999) (00-01)
(body harn, center of rear bumper) b13
(body harn, center of trunk lid) b12
(body harn, left quar- ter panel) b7
(body harn, left rear door sill) b5
(body harn, near left taillight) b11
(body harn, near right taillight)
(center rear of trunk) g407
(in instru- ment panel j/b)
(inner)
(top center of dash) j/c 17
A7 c7
Alt fuse 100a
B j31
B10
B11
B13
B15
C10
Combination meter
Combination switch
D3 c10
E2 (engine harness left front fender)
Engine room j/b (on left side of engine compt)
F11
From j/c 18, j/c 19 (diagram 1 of 1)
Fusible link block (in eng room j/b)
G108 (left radiator side support)
G109 (right radiator support)
G200 (left kick panel)
G206 (behind center of dash)
G308
G407 (center rear of trunk)
Gauge fuse 10a
Hazard fuse 10a 15a
Hazard switch
Head
High mount stop- light
Hot at all times
Hot in on or start
I13
I15
Instru- ment panel j/b (left side of dash)
Instrument panel j/b (behind left side of dash)
Instrument panel j/b (left side of dash)
Integration relay
J/c 15
J/c 16 (behind top center of dash)
J/c 18, j/c 19 (right side of dash)
J/c 2 (left kick panel)
J/c 31, j/c 32 (right side of dash)
J/c 37 (lower left "b" pillar)
J/c 4 (left side of dash)
J/c 8 (left side of dash)
J18
J19
J32
Left front turn signal/ parking light
Left rear combination lights (outer)
Left rear turn signal light
License plate lights
Light ctrl switch
Light failure sensor (left front corner of
Luggage compt)
Of trunk lid)
Off
Park
Rear light warning ind
Rear of trunk lid)
Rear side marker lights
Red
Right front turn signal/ parking light
Right rear combination lights (outer)
Right rear turn signal light
S11
Stop
Stop fuse 15a
Stop- light switch (above brake pedal)
Tail
Tail fuse 10a
Taillight relay
To j/c 31, j/c 32 (diagram 1 of 1)
Turn
Turn fuse 7.5a
Turn signal flasher relay (behind left side of dash)
Turn signal ind
Turn signal switch

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Lexus ES 300 2001

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List of elements for Ground Distribution Wiring Diagram (1 of 4) for Lexus ES 300 2001:

A/c dual pressure switch
A/f heater relay
A19
A21
A41
A46
Abs & ba & trac & vsc actuator
Abs & ba & trac & vsc ecu
Abs & traction actuator
Abs & traction ecu
Abs actuator
Abs sol relay
Combination meter
Data link connector
Drl relay
E1 (engine harness, behind right headlight)
E10
E11
E3 (engine harn, left front fender)
Efi relay
Engine control module
Engine hood courtesy switch
Engine main relay
Engine room j/b (on left side of engine compt)
Engine room r/b (in engine room junction block)
Engine room r/b 2 (on left front of engine compartment)
Engine room r/b 3 (in right front of engine compt, on radiator upper support)
Eo1
Eo2
Eo3
Eo4
Eo5
Eom
Except hid
Fan relay 2
From g109 (diagram 1 of 4)
Front wiper motor
G108 (left radiator side support)
G109 (right radiatior support)
G120 (rear side of surge tank)
G120 (right side of surge tank)
Grd1
Grd2
Grd3
Grd4
Headlight control ecu (left lowbeam)
Headlight control ecu (right lowbeam)
Heated oxygen sensor (bank 1, sensor 2)
Heater relay
Hid
I13
Idle air control valve
Ignition coil & igniter 1
Ignition coil & igniter 2
Ignition coil & igniter 3
Ignition coil & igniter 4
Ignition coil & igniter 5
Ignition coil & igniter 6
J/c 24 (behind right side of dash)
J/c 26 (behind right side of dash)
J/c 39 (top right side of engine)
J/c 8, j/c 9 (behind left side of dash)
J10
Left front fog- light
Left front turn signal/ parking light
Left low beam head- light
Noise filter (ignition)
Radiator fan motor
Right front absorber control actuator
Right front fog- light
Right front turn signal/ parking light
Right low beam headlight
Theft deterrent horn
To g108 (diagram 1 of 4)
Washer level warning switch
Water temperature switch 1

Ground Distribution Wiring Diagram (2 of 4) for Lexus ES 300 2001

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List of elements for Ground Distribution Wiring Diagram (2 of 4) for Lexus ES 300 2001:

(dash harn, behind center of dash)
(w/driving position memory) (w/o driving position memory)
A/c control assembly
A/c blower motor linear controller
A14
A15
A23
A47
Abs & ba & trac & vsc ecu
Abs ecu
Absorber control ecu
Absorber control switch
Air vent mode control servo motor
B19 (right front door harness, front of right front door)
Blower resistor
Brake fluid level warning switch
C10
C22
Cd automatic changer
Center airbag sensor assembly
Cigarette lighter
Combination meter
Combination switch
Cruise control actuator
Cruise control ecu
Cruise control switch
Data link connector
Engine oil level warning switch
Engine room j/b (on left side of engine compt)
Front wiper/ washer switch
Fuel sender
G203 (right kick panel)
G206
G206 (right instrument panel brace)
Headlight beam level control ecu
I23
I4 (dash harn, behind left side of dash)
Instrument panel j/b (behind left side of dash, above kick panel)
Integration relay
J/c 15 (behind center of dash)
J/c 20, j/c 21 (behind right side of dash)
J/c 8, j/c 9 (behind left side of dash)
J20
J21
Key interlock solenoid
Left front absorber control actuator
Noise filter
Power relay
Radio & player
Right front door key lock/ unlock switch
Right front door lock control switch
Right front door lock motor & door unlock detection switch
Right front power window control switch
Right front power window motor & ecu
Right mirror heater
Start relay
Steering sensor
Stereo component amplifier
To g200 (diagram 3 of 4)
To g201 (diagram 4 of 4)
Trac off switch
Turn signal flasher relay
Unlock warning switch
Vsc off switch
W/ vsc
W/o traction control
W/o vsc

Ground Distribution Wiring Diagram (3 of 4) for Lexus ES 300 2001

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List of elements for Ground Distribution Wiring Diagram (3 of 4) for Lexus ES 300 2001:

(body harn, below driver's seat)
(body harn, below driver's seat) b16
(w/ driving position memory)
(w/o driving position memory)
B13 (body harn, behind center of rear bumper)
B14
B14 (body harn, center rear of trunk lid)
B20
Buckle switch
C15
Cellular phone
Clock
Combination meter
Driver's lumbar seat control switch
Driver's power seat control switch
Driver's seat heater
Driver's seat heater switch
From g203 (diagram 2 of 4)
Fuel lid & luggage compartment door opener switch
Fuel lid opener motor
Fuel pump
G200 (left kick panel)
G308
G407 (center rear of trunk)
Glove box light switch
High mounted stop light
J/c 16 (behind center of dash)
J/c 37 (lower left "b" pillar)
Left license plate light
Left rear absorber control actuator
Left rear combination light
Left rear door lock motor & door unlock detection switch
Left rear side marker light
Left rear turn signal light
Light failure sensor
Luggage compartment door key unlock switch
O/d main switch
Passenger's seat heater switch
Remote control mirror ecu
Remote control mirror switch
Rheostat
Right license plate light
Right rear combination light
Right rear side marker light
Right rear turn signal light
S14
Seat position control ecu
Shift lock control ecu
Telephone transceiver/ speaker relay
Theft deterrent ecu
W/o driving position memory
Wireless door lock ecu

Ground Distribution Wiring Diagram (4 of 4) for Lexus ES 300 2001

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List of elements for Ground Distribution Wiring Diagram (4 of 4) for Lexus ES 300 2001:

(body harness, left side of windshield header)
(w/o moon roof) (w/ moon roof)
B18
B2 b4
B6 (body harn, right front door sill)
C22
Center air bag sensor assembly
Driver's power seat control switch
Driver's power seat position sensor (front vertical control)
Driver's power seat position sensor (rear vertical control)
Driver's power seat position sensor (reclining control)
Driver's power seat position sensor (slide control)
From j/c 15 b (diagram 2 of 4)
G200 (left kick panel)
G201 (right side of dash)
G202 (left end of dash)
G203 (right kick panel)
G305 (lower right "b" pillar)
G902 (left front of roof)
Inner mirror
Instrument panel j/b (behind left side of dash, above kick panel)
J/c 36 (left front door)
Left front door key lock/ unlock switch
Left front door lock motor & door unlock detection switch
Left front power window motor & ecu
Left mirror heater
Left vanity light
Moon roof control relay
Moon roof control switch
Passenger's power seat control switch
Passenger's seat heater
Personal light
Power outlet
Power window master switch
Right rear absorber control actuator
Right rear door lock motor & door unlock detection switch
Right vanity light
S15
Seat memory switch
Seat position control ecu
Transponder key amplifier

HEADLIGHTS

Headlamps Wiring Diagram, with DRL (1 of 2) for Lexus ES 300 2001

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List of elements for Headlamps Wiring Diagram, with DRL (1 of 2) for Lexus ES 300 2001:

Auto
Automatic light control sensor (top left or right side of dash)
Cltb
Clte
Clts
Combination switch
Dimmer switch
Exterior lights system (taillight relay)
Flash
Fog fuse 15a
Foglight switch
Front foglight relay (behind left side of dash)
G108 (left radiator side support)
G109 (right radiator side support)
G206
Gauge fuse 10a
Generator
Head
High
Hot at all times
Hot in on or start
I14
I15
I18 (dash harn, upper left end of dash)
Instrument cluster system
Instrument panel j/b (behind left side of dash)
Integration relay
J/c 15 (behind center of dash)
J/c 18, j/c 19 (right side of dash)
J/c 20 (behind right side of dash)
J/c 31, j/c 32 (behind right side of dash)
J/c 8, j/c 9 (left side of dash)
J18
J19
J31
J32
Left front door courtesy switch
Left front foglight
Light control switch
Low
Off
Parking brake switch (bottom of parking brake lever)
Red
Right front foglight
Tail

Headlamps Wiring Diagram, with DRL (2 of 2) for Lexus ES 300 2001

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List of elements for Headlamps Wiring Diagram, with DRL (2 of 2) for Lexus ES 300 2001:

A j20
B15 c8
B7 c8
C j21
C3 c9
C5 c9
Combination meter
Dome fuse 7.5a
Drl 2 fuse 5a
Drl 2 relay
Drl 3 relay
Drl 4 relay
Engine room j/b (on left side of engine compt)
Engine room r/b 2 (left front of engine compt)
Except hid
G108 (left radiator side support)
G109 (right radiator side support)
G200 (left kick panel)
Head ind (usa)
Head relay
Headlight control ecu (left highbeam)
Headlight control ecu (left lowbeam)
Headlight control ecu (right highbeam)
Headlight control ecu (right lowbeam)
Hid
High beam ind
Hot at all times
J/c 20, j/c 21 (behind right side of dash)
J12
Left high beam headlight
Left low beam headlight
Left lower head fuse 10a
Left upper head fuse 15a
Main fuse 40a
Red
Right high beam headlight
Right low beam headlight
Right lower head fuse 10a
Right upper head fuse 15a
Short pin

Headlamps Wiring Diagram, without DRL (1 of 2) for Lexus ES 300 2001

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List of elements for Headlamps Wiring Diagram, without DRL (1 of 2) for Lexus ES 300 2001:

Auto
Automatic light control sensor (top left or right side of dash)
Cltb
Clte
Clts
Combination switch
Dimmer switch
Exterior lights system (taillight relay)
Flash
Fog fuse 15a
Foglight switch
Front foglight relay (behind left side of dash)
G108 (left radiator side support)
G109 (right radiator side support)
G206
Gauge fuse 10a
Head
High
Hot at all times
Hot in on or start
I14
I15
Instrument panel j/b (behind left side of dash)
Integration relay
J/c 15 (behind center of dash)
J/c 18, j/c 19 (right side of dash)
J/c 31, j/c 32 (behind right side of dash)
J/c 8 (left side of dash)
J18
J19
J31
J32
Left front door courtesy switch
Left front foglight
Light control switch
Low
Off
Red
Right front foglight
Tail

Headlamps Wiring Diagram, without DRL (2 of 2) for Lexus ES 300 2001

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List of elements for Headlamps Wiring Diagram, without DRL (2 of 2) for Lexus ES 300 2001:

A j20
C j21
C3 c9
C5 c9
Combination meter
Dome fuse 7.5a
Engine room j/b (on left side of engine compt)
G108 (left radiator side support)
G109 (right radiator side support)
Head relay
High beam ind
Hot at all times
J/c 20, j/c 21 (behind right side of dash)
J/c 31, j/c 32 (behind right side of dash)
J12
J20 a
J31
J32
Left high beam headlight
Left low beam headlight
Left upper head fuse 15a
Main fuse 40a
Red
Right high beam headlight
Right low beam headlight
Right upper head fuse 15a
Short pin

Headlamps Leveling Wiring Diagram for Lexus ES 300 2001

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

Anti-lock brakes system
Auto
Engine room j/b (on left side of engine compartment)
G206
Hdlp
Head
Head lp relay
Headlight beam level control ecu (behind right side of dash)
Headlight switch
Height control sensor (under right side of vehicle)
Hot at all times
Hot in on or start
Instrument cluster system
Instrument panel j/b (above left side of dash, above kick panel)
Instrument panel j/b (behind left side of dash)
Integration relay (in instrument panel j/b)
J/c 15 (behind center of dash)
J/c 18, j/c 19 (behind right side of dash)
J/c 20, j/c 21 (behind right side of dash) j20
J/c 3 (behind left kick panel)
J/c 8, j/c 9 (left side of dash)
J18
J19
J21
Left headlight beam level control actuator
Lh 1
Lh 2
Lh 3
Lh 4
Main fuse 40a
Off
Pnk
Pwr-ig fuse 15a
Rh 1
Rh 3
Rh 4
Right headlight beam level control actuator
Sbr
Sgr
Shr
Spdr
Tail
Wng

HORN

Horn Wiring Diagram for Lexus ES 300 2001

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

Combination switch
Engine room j/b (left side of engine compartment)
Horn fuse 10a
Horn relay
Horn switch
Hot at all times
J/c 2 (behind left kick panel)
K10
Left horn
Right horn

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram (1 of 2) for Lexus ES 300 2001

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List of elements for Instrument Cluster Wiring Diagram (1 of 2) for Lexus ES 300 2001:

(canada)
(center of firewall)
(left side of dash)
(right front corner of engine compt)
(right side of dash) j/c 28, j/c 29
(top center of dash) j/c 17
(usa)
2 ind
A/c control assembly (center of dash)
A10
A13
A14
A48
Abs & trac & vsc ecu (1999) abs & ba & trac & vsc ecu (2000) (behind right side of dash)
Abs ind
Absorber control ecu (left side of dash)
Anti-lock brakes system
B10
B11
B12
B13
B14
B15
B16
Brake fluid level warning switch (in brake fluid reservoir)
Brake ind
Bulb check relay
C10
Charge ind
Combination meter
Cpu/solid state
Cruise control ecu (left side of dash)
Cruise control system
Cruise ind
D ind
D10
D11
D12
D13
Delay circuit
Diode (left kick panel)
Dome fuse 7.5a
Door ind
E10
Ecu-b fuse 10a
Engine control module (right side of dash)
Engine controls system
Engine room j/b (left side of engine compt)
Exterior lights system
Fuel gauge
Fuel ind
Fuel sender
G109 (right radiator support)
G121
G202
G206 (on right dash center support)
Headlight on ind
Headlights system
Headlights system (right head fuse)
High beam ind
Hot at all times
Hot in on or start
Hot with taillight relay energized
I18 (dash harn, upper left end of dash)
Ign
Ign fuse 5a
Instrument panel j/b (left side of dash)
Integration relay (in instrument panel j/b)
Interior lights system
J/c 12 (top left side of dash) a
J/c 15 (behind center of dash)
J/c 16 (behind center of dash)
J/c 2 (left kick panel)
J/c 4
J/c 5 (left side of dash)
J12
J28
J29
L ind
Lblo
Left turn ind
Malfunction indicator lamp
N ind
Neo
O/d off ind
Odometer/cpu
Oil level/ temperature ind
Oil pressure ind
Oil pressure switch (left front corner of engine)
P ind
Panel fuse 7.5a
Parking brake switch
Pnk
R ind
Rear light failure ind
Red
Rheostat
Right turn ind
Seat belt ind
Slip ind
Spd
Speedometer
Srs ind
Starting/charging system
Tach
Tachometer
Taillight on ind
Trac off ind
Warning system
Washer level ind
Washer level warning switch
Water temperature gauge
Water temperature sender (top front of engine)

Instrument Cluster Wiring Diagram (2 of 2) for Lexus ES 300 2001

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List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Lexus ES 300 2001:

(on transaxle) park/neutral position switch
(right side of dash) j/c 28, j/c 29
(right side of dash) j/c 30
A j28
A/t indicator light switch
C j29
Combination meter vehicle speed sensor (on transaxle housing)
E10
Engine control module (right side of dash)
Engine oil level warning switch (left front of engine)
G200 (left kick panel)
G202
Gauge fuse 10a
H10
Hot
Hot in on or start
Ig+
Instrument panel j/b (left side of dash)
J/c 15 (behind center of dash)
J/c 16 (behind center of dash)
J/c 25 (right side of dash)
J/c 28, j/c 29 (right side of dash)
J/c 4 (left side of dash)
J/c 7 (left side of dash)
J/c 8 (left side of dash)
J28
J29
Low
Normal
O/d main switch
Od2
Oil level switch
Oil temperature switch
Pnk
Red

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram for Lexus ES 300 2001

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List of elements for Courtesy Lamps Wiring Diagram for Lexus ES 300 2001:

(body harn, left "a" pillar) b2 (w/o moonroof)
(body harness, in roof, above left front window) b3
(left end of dash) g202
Anti-theft system
B2 (body harn, left "a" pillar)
B3 (body harness, in roof, above left front window)
B4 (w/ moonroof) (body harness, (center of windshield header)
B7 (body harness, left quarter panel)
B8 (body harness, behind left rear seat)
Combination meter
Condenser (at left front side of luggage compartment)
Diode (behind left kick panel)
Diode (behind right side of dash, above kick panel)
Dome fuse 7.5a
Door
Engine room junction block (on left side of engine compartment)
Exterior lights system
G206
H11
Hot at all times
I14
Ignition key cylinder light
Instrument panel junction block (behind left side of dash)
Integration relay
Interior light
J/c 10 (behind upper left side of dash)
J/c 15 (under left side of radio)
J/c 34, j/c 35 (behind right kick panel)
J/c 5 (behind left side of dash)
J12
J34
J35
Left door courtesy light
Left front door courtesy switch
Left rear door courtesy switch
Left vanity light
Luggage compartment light
Luggage compartment light switch
Off
Open door warning light
Personal light
Red
Right door courtesy light
Right front door courtesy switch
Right rear door courtesy switch
Right vanity light
S12

Instrument Illumination Wiring Diagram for Lexus ES 300 2001

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

(left kick panel) g200
A/c control assembly
A/t shift lever illumination (o/d main switch)
Absorber control switch
C10
Cigarette lighter illumination
Combination meter
Driver's seat heater switch
G206
Gauge fuse 10a
Glove box light
Glove box light switch
Hazard switch
Head
Hot at all times
Hot in on or start
I15
I16 (dash harness, right side of center console)
Ill-
Instrument panel junction block (behind left side of dash)
Integration relay (in instrument panel junction block)
J/c 12, j/c 13 (top left side of dash)
J/c 15 (under left side of radio)
J/c 16 (behind center of dash)
J/c 18, j/c 19 (right side of dash)
J/c 2 (left kick panel)
J/c 20, j/c 21 (right side of dash)
J/c 4 (left side of dash)
J/c 5, j/c 6 (behind left side of dash)
J/c 8 (behind left side of dash)
J12
J13
J18
J19 d
J20
J20 d
J21 e
Light control switch (part of combination switch)
Off
Panel fuse 7.5a
Passenger's seat heater switch
Radio & player
Remote control mirror switch
Rheostat
Tail
Taillight relay

MEMORY SYSTEMS

Memory Mirrors Wiring Diagram for Lexus ES 300 2001

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List of elements for Memory Mirrors Wiring Diagram for Lexus ES 300 2001:

(left kick panel)
Acc
B16
Com
Dcty
Defogger system
Down
Ecu-b fuse 10a
Engine room j/b (left side of engine compt)
G200
G200 (left kick panel)
Gnd
Hot at all times
Hsrl
Hsrr
Instrument panel j/b (behind left side of dash)
J/c 10, j/c 11 (behind top left side of dash)
J/c 14 (behind top center of dash)
J/c 16 (behind top center of dash)
J/c 4 (behind left side of dash)
J10
J11
Left
Left front door courtesy switch
Left remote control mirror
M+l
M+r
Mhl
Mhr
Mirb
Mire
Mmry
Mvl
Mvr
Operation switch
Pnk
Rad 2 fuse 7.5a
Red
Remote control mirror ecu (behind center of dash)
Remote control mirror switch
Right
Right remote control mirror
Seat memory switch
Seat position control ecu (under driver's seat)
Select switch
Set
Sgnd
Sw1
Sw2
Vsrl
Vsrr

Memory Seat Wiring Diagram for Lexus ES 300 2001

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List of elements for Memory Seat Wiring Diagram for Lexus ES 300 2001:

(body harness, below driver's seat)
B1 (body harn, left front door sill)
B16
Dcty
Down
Driver's power seat control switch
Driver's seat front vertical position sensor
Driver's seat front vertical power seat motor
Driver's seat lumbar support motor
Driver's seat rear vertical position sensor
Driver's seat rear vertical power seat motor
Driver's seat reclining position sensor
Driver's seat reclining power seat motor
Driver's seat slide position sensor
Driver's seat slide power seat motor
Ecu-b fuse 10a
Ecu-ig fuse 15a
Engine room j/b (on left side of engine compt)
Fdwn
Front
Front vertical
Frv+
Frv-
Fup
G200 (left kick panel)
G308
Gnd
Hot at all times
Hot in on or start
Instrument panel j/b (behind left side of dash)
J/c 30 (right side of dash)
J/c 37 (lower left "b" pillar)
J/c 5 (left side of dash)
Left front door courtesy switch
Lumbar support switch
Memory seat switch
Mmry
Park/neutral position switch
Pnk
Power fuse 30a
Pvcc
R18
Rcl+
Rcl-
Rclf
Rclr
Rdwn
Rear
Rear vertical
Reclining
Red
Remote control mirror ecu (behind center of dash)
Rrv+
Rrv-
Rup
S14
S15
Seat position control ecu (under driver's seat)
Set
Sgnd
Sld+
Sld-
Sldf
Sldr
Slide
Ssfv
Ssrr
Ssrs
Ssrv
Stop
Stop fuse 15a
Stoplight switch (on bracket, above brake pedal)
Sw1
Sw2
Sysb
V10

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 2) for Lexus ES 300 2001

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List of elements for Power Distribution Wiring Diagram (1 of 2) for Lexus ES 300 2001:

(canada)
(engine harness, left front fender)
(in right front of engine compt, on radiator upper support)
(not used)
(on left side of engine compt) engine room j/b
(usa)
A/f htr fuse 25a
A/f htr relay
Abs fuse 60a
Abs motor relay
Abs solenoid relay
Alt fuse 100a
Alt-s fuse 5a
Am2 fuse 30a
Anti- theft system
Battery
Cds fuse 30a
Charging circuit
Cooling fans system
Dome fuse 7.5a
Drl 2 relay
Drl no 2 fuse 5a
Ecu-b fuse 10a
Efi fuse 15a
Efi relay
Engine controls system, transmission system
Engine main relay
Engine room j/b (on left side of engine compt)
Engine room r/b (in engine room j/b)
Engine room r/b (in engine room junction block)
Engine room r/b 2
Engine room r/b 2 (on left front of engine compt)
Engine room r/b 3
Exterior lights system
F10
F11
Fan 1 relay
From b radio 1 fuse (diagram 1 of 2)
Fusible link block (in engine room junction block)
Generator
Hazard fuse 15a
Head relay
Headlights system
Headlights system, instrument cluster system
Headlights system, warning systems, interior lights system, anti-theft system, door locks system, garage door opener, power tops system, exterior lights system, instrument cluster system
Heater relay
Horn fuse 10a
Horn relay
Htr fuse 50a
J12
K11
Left lower head fuse 15a
Left upper head fuse 20a
Main fuse 40a
Radio 1 fuse 20a
Rdi fuse 30a
Red
Relay
Right lower head fuse 15a
Right upper head fuse 20a
Short pin
Sound system
Tel fuse 5a
Telephone
To am1 fuse (diagram 2 of 2)
To hazard fuse (diagram 1 of 2)
To ignition switch (diagram 2 of 2)

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

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

(behind left side of dash) instrument panel j/b
(behind left side of dash, above kick panel) instrument panel j/b
(not used)
40a
Acc
Am1 fuse
Cig fuse 15a
Cigarette lighter
Def fuse 40a
Defog- ger relay
Defogger system
Defogger system, air conditioning system
Door fuse 25a
Ecu-ig fuse 15a
Engine controls system
Engine controls system, computer data lines system
Engine controls system, defogger system
Engine controls system, exterior lights system
Exterior lights system
Exterior lights system, engine controls system, cruise control system, anti-lock brakes system, memory systems, transmission system, shift interlock system, electronic suspension system
Fog fuse 15a
From am1 fuse (diagram 2 of 2)
From am2 fuse (diagram 1 of 2)
From fusible link block (diagram 1 of 2)
G202 (left end of dash)
G206
Gauge fuse 10a
Headlights system
Heater fuse 10a
I1 (dash harn, upper left end of dash)
Ign fuse 5a
Ignition switch
Instrument cluster system, power window system, anti-lock brakes system, power top system, charging circuit, exterior lights system, headlights system, memory systems, cruise control system, transmission system, interior lights system
Instrument panel j/b (behind left side of dash)
Integration relay
Interior lights system, instrument cluster system
J/c 15 (behind center of dash)
J10
J11
Lock
Memory systems, door locks system, anti-theft system, cruise control system, electronic suspension system, anti-lock brakes system, cooling fans system, shift interlock system, mirrors system, telephone, headlights system
Memory systems, power windows system, seats system, power tops system
Mirr0r heater fuse 10a
Noise filter
Obd fuse 7.5a
Panel fuse 7.5a
Power fuse 30a
Power outlet
Power outlet fuse 15a
Power relay
Power windows system, door locks system, anti-theft system, trunk, tailgate, fuel door system, power tops system
Rad 2 fuse 7.5a
Red
Seat heater fuse 20a
Seats system
Sound system, memory systems
Start
Starter fuse 5a
Starting/ charging system, engine controls system, transmission system, instrument cluster system
Stop fuse 15a
Tail fuse 10a
Tail- light relay
To def fuse (diagram 2 of 2)
Turn fuse 7.5a
Wiper fuse 25a
Wiper/washer system

POWER DOOR LOCKS

Power Door Lock Wiring Diagram (1 of 2) for Lexus ES 300 2001

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List of elements for Power Door Lock Wiring Diagram (1 of 2) for Lexus ES 300 2001:

(behind left kick panel) diode
(behind right side of dash, above kick panel)
Diode
Dome fuse 7.5a
Door fuse 25a
Engine room j/b (on left side of engine compt)
G202 (left end of dash)
G206
Gauge fuse 10a
Hot at all times
Hot in on or start
Instrument panel j/b (behind left side of dash)
Integration relay
J/c 12, j/c 13 (behind top left side of dash)
J/c 15 (behind center of dash)
J/c 33 (right side of dash)
J/c 34, j/c 35 (right kick panel)
J/c 36 (inside left front door)
J/c 5, j/c 6 (left side of dash)
J12
J13
J34
J35
Left front door courtesy switch
Left rear door courtesy switch
Red
Right front door courtesy switch
Right rear door courtesy switch
S12
Unlock warning switch (steering column)

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

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

(behind left side of dash) j/c 7
(left kick panel) g200
(left side of dash) j/c 5, j/c 6
(right front corner of engine compt) wireless door lock buzzer
(right kick panel)
(right kick panel) g203
(right side of dash) j/c 33
(under center of dash, forward of center console) theft deterrent ecu
+b1
+b2
B14
B19
Bzr
Bzr2
Cty
Dswd
Dswp
Ecu-ig fuse 15a
Exterior lights system
G305 (lower right b-pillar)
G308
Gnd
Hot in on or start
Instrument panel j/b (behind left side of dash)
J/c 10, j/c 11 (behind top left side of dash)
J/c 16 (top center of dash)
J/c 34, j/c 35
J/c 37 (lower (left b-pillar)
J/c 37 (lower left "b" pillar)
J10
J11
J34
J35
Ksw
Left door lock control switch
Left front door key lock/ unlock switch
Left front door lock motor/door unlock detection switch
Left rear door lock motor/door unlock detection switch
Lock
Lswd
Lswp
Lswr
Lug
Luggage comp- artment door key unlock switch
Power window master switch
Red
Right door lock control switch
Right front door key lock/ unlock switch
Right front door lock motor/door unlock detection switch
Right rear door lock motor/door unlock detection switch
Trly
Ul2
Ul3
Unlock
Wireless door lock buzzer volume switch
Wireless door lock ecu (under center of dash, forward of center console)

POWER MIRRORS

Electrochromic Mirror Wiring Diagram for Lexus ES 300 2001

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List of elements for Electrochromic Mirror Wiring Diagram for Lexus ES 300 2001:

Ec+
Ec-
Ecu-ig fuse 15a
G902 (left front of roof)
Hot in on or start
Inner mirror
Instrument panel j/b (behind left side of dash)
J/c 3 (behind left kick panel)
Left remote control mirror

Power Mirrors Wiring Diagram for Lexus ES 300 2001

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

Cig fuse 15a
Down
G200 (left kick panel)
Hot in on or acc
Instrument panel j/b (behind left side of dash)
J/c 16 (behind center of dash)
J/c 4 (behind left side of dash)
J/c 7 (behind left side of dash)
Left
Left remote control mirror
Operation switch
Red
Remote control mirror switch
Right
Right remote control mirror
Select switch

POWER SEATS

Heated Seats Wiring Diagram for Lexus ES 300 2001

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

Driver's seat heater
Driver's seat heater switch
Front passenger's seat heater switch
G200 (left kick panel)
G203 (right kick panel)
G308
Hot in on or start
I16 (dash harn, right side of center console)
Instrument panel j/b (behind left side of dash) above kick panel)
Interior lights system
J/c 16 (behind top center of dash)
J/c 37 (lower left "b" pillar)
Passenger's seat heater
Red
Seat-heater fuse 20a

Power Seats Wiring Diagram for Lexus ES 300 2001

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

B20 (seat harn, below driver's seat)
B6 (body harn, right front door sill)
Down
Driver's power seat control switch or passenger's power seat control switch
Driver's power seat lumbar support control switch
Driver's seat
Driver's seat lumbar support control motor (under seat)
Front
Front passenger's seat
Front vertical control motor (under seat)
G305 (lower right "b" pillar)
G308
Hot at all times
Instrument panel j/b (behind left side of dash)
J/c 37 (lower left "b" pillar)
Power fuse 30a
Rear
Rear vertical control motor (under seat)
Reclining
Reclining control motor (under seat)
Red
Slide
Slide control motor (under seat)
Vertical

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagrams for Lexus ES 300 2001

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

(left front of roof)
B18 (body harness, left "a" pillar)
B2 (body harness, left "a" pillar)
Close/ up
Dome fuse 7.5a
Door fuse 25a
Engine room junction block (on left side of engine compartment)
Front door courtesy switch
G202 (left end of dash)
G203 (right kick panel)
G902
Gauge fuse 10a
Hot at all times
Hot in on or start
I20 (dash harness, above instrument panel j/b)
Ign
Instrument panel junction block (behind left side of dash)
Integration relay
J/c 28 (behind right side of dash)
J/c 33 (behind right end of dash)
J/c 34, j/c 35 (right kick panel)
J/c 36 (in left front door)
J/c 7 (behind left side of dash)
J12
J34
J35
Left
Left front door key lock & unlock switch
Ls1
Ls2
Moon roof control switch
Moon roof motor/limit switch & moon roof control relay (at front of moon roof opening)
Open/ down
Power fuse 30a
Pwr
Red
Right front door courtesy switch
Right front door key lock & unlock switch
Solid state
To power relay
Wcls
Wopn

POWER WINDOWS

Power Window Wiring Diagram (1 of 2) for Lexus ES 300 2001

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List of elements for Power Window Wiring Diagram (1 of 2) for Lexus ES 300 2001:

(behind center of dash)
Door fuse 25a
Down
G12
G13
G206
Gauge fuse 10a
Hot at all times
Hot in on or start
I20 (dash harness, above instrument panel j/b)
Instrument panel j/b (left side of dash)
Integration relay
J/c 15
J/c 34, j/c 35 (right kick panel)
J/c 38 (in right front door)
J/c 38 (right front door)
J34
J35
Left front power window switch
Left rear power window switch
Lock
Off
Pct
Power fuse 30a
Power main relay
Power window lock switch
Power window master switch
Red
Right front door courtesy switch
Right front power window control switch
Right front power window switch
Right rear power window switch
Rld
Rlu
Rrd
Rru
Solid state

Power Window Wiring Diagram (2 of 2) for Lexus ES 300 2001

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List of elements for Power Window Wiring Diagram (2 of 2) for Lexus ES 300 2001:

(left end of dash)
Auto
B a
B19 (right front door harness, front of right front door)
Down
Dwn1
Dwn2
G202
G203 (right kick panel)
I17 (dash harness, upper left end of dash)
I2 (dash harness, upper left end of dash)
I20 (dash harness, above instrument panel j/b)
Instrument panel j/b (left side of dash)
J/c 36 (left front door)
J/c 4 (left side of dash)
Kof
Left front door courtesy switch
Left front power window motor & ecu
Left rear power window control switch
Left rear power window motor
Red
Right front power window motor & ecu
Right rear power window control switch
Right rear power window motor
Up1
Up2

RADIO

Radio Wiring Diagrams for Lexus ES 300 2001

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

(instrument panel harn, right center of dash)
(nakamichi only)
Acc
Amp+
Automatic cd changer
B17
B17 (left front harness, front of left front door)
B19
B19 (right front harness, front of right front door)
Beep
Engine room j/b (left side of engine compartment)
Fl+
Fl-
Fr+
Fr-
G206 (right instrument panel brace)
Gnd
Hot at all times
Hot in acc or on
I24
Instrument panel j/b (behind left side of dash)
Junction connector j/c 14 (behind top center of dash)
K11
Left front door speaker
Left front tweeter speaker
Left rear door speaker
Mute
Nca
Pnk
Radio fuse 1 20a
Radio fuse 2 7.5a
Radio/cd player
Red
Right rear door speaker
Rl+
Rl-
Rli+
Rli-
Rlo+
Rlo-
Rr+
Rr-
Sgnd
Sld
Stereo component amplifier (behind right side of dash)
Telephone transceiver & speaker relay (left side of luggage compartment)
Tlmt
Tx+
Tx-
Txm+
Txm-
Wf+
Wf-
Woofer speaker

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram for Lexus ES 300 2001

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

Acc
Cig fuse 15a
Ecu-ig fuse 15a
G200 (left kick panel)
G206
Hot at all times
Hot in acc or on
Hot in on or start
Instrument panel junction block (behind left side of dash)
J/c 15 (behind center of dash)
J/c 16 (behind top center of dash)
J/c 5 (left side of dash)
J/c 7 (left side of dash)
J/c 8 (left side of dash)
Key interlock solenoid (in ignition switch assembly)
Kls+
Shift lock control ecu (under center console, beside shift lever)
Stop fuse 15a
Stop light switch (on bracket, above brake pedal)
Stp

STARTING/CHARGING

Charging Wiring Diagram for Lexus ES 300 2001

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

(on left side of engine compartment) engine room j/b
Acc
Alt fuse 100a
Alt-s fuse 5a
Am2 fuse 30a
Ami fuse 40a
Battery
Battery ground
Charge warning light
Comb- ination meter
E2 (engine harn, left front fender)
F11
Fusible link block (in engine room j/b)
Gauge fuse 10a
Generator
I14
I18 (dash harn, upper left end of dash)
Ign fuse 5a
Ignition switch
Instrument panel j/b (behind left side of dash)
Integration relay (in instrument panel j/b)
Nca
Off
Start

Starting Wiring Diagram for Lexus ES 300 2001

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

Acc
Am2 fuse 30a
Battery
Battery ground
Engine control module (right side of dash)
Engine room j/b (on left side of engine compartment)
Fusible link block (in engine room j/b)
G206
Ignition switch
Instrument panel j/b (behind left side of dash)
J/c 15 (behind center of dash)
J/c 3 (behind left kick panel)
J/c 8, j/c 9 (behind left side of dash)
J11
J8 b
Main fuse 40a
Nca
Nsw
Off
Park/neutral position switch (on transaxle)
Red
Sta
Start
Start relay
Starter
Starter fuse 5a

SUPPLEMENTAL RESTRAINTS

Supplemental Restraint Wiring Diagram for Lexus ES 300 2001

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

(behind left side of dash) instrument panel j/b
Air bag squib (front passenger air bag assembly)
Air bag squib (steering wheel pad)
C10
C22
C23
C24
Center air bag sensor assembly (under center of dash, forward of center console)
Cig fuse 15a
Combination meter
Data link connector (dlc) 1 (partial) (near right front corner of engine)
Data link connector (dlc) 3 (partial) (under left side of dash)
Ecu-b fuse 10a
Engine room j/b (on left side of engine compartment)
G200 (left kick panel)
G206
Hot at all times
Hot in acc or on
Hot in on or start
Ign fuse 5a
Instrument panel j/b (behind left side of dash)
J/c 1 (behind left kick panel)
J/c 15 (behind center of dash)
Left front air bag sensor (in left front corner of engine compartment, behind bumper)
Left pretensioner
Left side air bag sensor (at base of left "b" pillar)
Left side air bag squib
Pnk
Right front air bag sensor (in right front corner of engine compartment, behind bumper)
Right pretensioner
Right side air bag sensor (at base of right "b" pillar)
Right side air bag squib
Spiral cable
Srs warning indicator

TRANSMISSION

A/T Wiring Diagram for Lexus ES 300 2001

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List of elements for A/T Wiring Diagram for Lexus ES 300 2001:

"2" indic
"d" indic
"l" indic
"n" indic
"p" indic
"r" indic
(dash harn, right side of dash)
(left radiator side support)
(on transaxle) park/neutral position switch
(right side of surge tank
Batt
Counter gear speed sensor (on transaxle)
Cruise control ecu (left side of dash)
Data link connector 1 (near right front corner of engine)
Dsl
E10
E11
Efi fuse 15a
Efi relay
Electronically controlled transmission solenoid (in transaxle)
Engine control module (behind right side of dash)
Engine controls
Engine coolant
Engine room j/b (left side of engine compt)
Eo1
Eo2
Eo3
Gauge fuse 10a
Hot at all times
Hot in on or start
Hot in start
Idlo
Ig (left kick panel)
Ign fuse 5a
Igsw
Instrument cluster system
Instrument panel j/b (left side of dash)
J/c (behind center of dash)
J/c 24 (right side of dash)
J/c 26 (right side of dash)
J/c 27 (right side of dash)
J/c 3 (left kick panel)
J/c 32 (right side of dash)
J/c 40 (right side of dash)
Mrel
Nc+
Nc-
Nsw
Nt+
Nt-
O/d main switch
O/d off indic
Od1
Od2
Ods
Pnk
Red
Sl1+
Sl1-
Sl2+
Sl2-
Slt+
Slt-
Spd
Starter fuse 5a
Starting/ charging
Stop fuse 15a
Stoplight switch (on brake pedal bracket)
Stp
Te1
Temperature sensor (top front of engine)
Tho
Throttle position sensor (on throttle body)
Thw
Turbine speed sensor (on transaxle)
Vta1

TRUNK, TAILGATE, FUEL DOOR

Trunk, Tailgate, Fuel Door Wiring Diagrams for Lexus ES 300 2001

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List of elements for Trunk, Tailgate, Fuel Door Wiring Diagrams for Lexus ES 300 2001:

+b2
Door fuse 25a
Fuel lid & luggage compartment door opener switch
Fuel lid opener motor (on left side of luggage compartment)
G200 (left kick panel)
G407 (center rear of trunk)
Hot at all times
Instrument panel junction block (behind left side of dash)
J/c 16 (behind top center of dash)
J/c 34 & j/c 35 (right kick panel)
J34
J35
Luggage compartment door opener main switch (for lock-out) (in glove compartment)
Luggage compartment door opener motor (on center rear of deck lid)
Red
Theft deterrent ecu (under center of dash, forward of center console)
Tsw

WARNING SYSTEMS

Warning System Wiring Diagrams for Lexus ES 300 2001

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List of elements for Warning System Wiring Diagrams for Lexus ES 300 2001:

Buckle switch
C10
Dome fuse 7.5a
Engine room j/b (left side of eng compt)
G206 (on left dash center support)
G308 (lower left "b" pillar)
Gauge fuse 10a
Hot at all times
Hot in on or start
Instrument cluster
Instrument panel j/b (behind left side of dash)
Integration relay
J/c 15 (behind center of dash)
J/c 37 (near lower left "b" pillar)
J/c 4 (behind left side of dash)
J12
Left front door courtesy switch (near left front door latch)
Red
Seat belt warning light
Solid state
Unlock warning switch (in ignition switch)

WIPER/WASHER

Wiper/Washer Wiring Diagram for Lexus ES 300 2001

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List of elements for Wiper/Washer Wiring Diagram for Lexus ES 300 2001:

Combination switch
Engine room junction block (on left side of engine compt)
Front wiper motor (on left side of firewall)
G108 (left radiator side support)
G206
Hot in run or start
Instrument panel junction block (behind left side of dash)
Int
J/c 15 (behind center of dash)
J/c 17 (top center of dash)
J/c 31, j/c 32 (behind right side of dash)
J10
J31
J32
Off
Solid state
Washer motor (bottom of windshield washer reservoir)
Washer switch
Wiper fuse 25a
Wiper switch