All Wiring Diagrams for Lexus LS 430 2002 model

AIR CONDITIONING

Front A/C Wiring Diagram (1 of 2) for Lexus LS 430 2002

List of elements for Front A/C Wiring Diagram (1 of 2) for Lexus LS 430 2002:

(right dash side panel)
(right kick panel) passenger side j/b
(right side of shift lever)
A/c control assembly (behind right side of dash)
A/c fuse 7.5a
A/c pressure sensor (left front of engine compt)
A/c room temp switch (driver)
A/c room temp switch (passenger) (center of dash)
A/c solar sensor (front)
A/c solar sensor (rear) (rear speaker shelf)
A/c solenoid (right side of engine)
A11
A12
Acc
Atx+
Atx-
Audio & rear a/c control switch (w/ rear controls)
Blower motor (lower right side of dash)
Blw
Clock (w/o navigation)
Combination meter
Computer data lines system
Defogger system
Dgs
Dome fuse 10a
Down
Driver side j/b (left kick panel)
Ds1
Ds2
Ds3
Ds4
Dual
Duind+
Duind-
Drdn
Drgnd
Drup
E13
E14
E16
E17
Eb (under fusible link block)
F11
F12
F15
Fusible link block (right rear of engine compt)
G j12
G j13
Gateway ecu (behind left end of dash)
Gauge fuse 10a
Gnd
Gtx+
Gtx-
Heater control switch (w/ navigation)
Heater control switch (w/o navigation)
Heater fuse 50a
Hot at all times
Hot in on or acc
Hot in on or start
Ig+
Ik (right dash side panel)
Ill+
Ill-
Ind+
Ind-
Instrument panel register
Interior lights system
J/c 10 (behind center of dash)
J/c 12, j/c 13 (behind center of dash)
J/c 14, j/c 15 (behind center of dash)
J/c 16, j/c 17 (behind center of dash)
J12 g
J13 h
J14 g
J15 g
J16 c
J17 c
Mpi1
Mpi2
Mpx+
Mpx-
Mpx-b2 fuse 7.5a
Mpx-ig fuse 7.5a
Mtx+
Mtx-
P-acc fuse 7.5a
P-ig fuse 7.5a
Passenger side j/b (right kick panel)
Pnk
Prs
Ps+b
Ps1
Ps2
Ps3
Ps4
Padn
Pagnd
Paup
Radio & player
Rdfgr
Red
Rtx+
Rtx-
S28
S29
S5-2
S5-4
Sol+
Sol-
Stereo component amplifier (right side of luggage compt)
Stereo component tuner
Tamo
Tamout
Tsdr
Tspa
Tsrr
Tx+
Tx-
Txs+
Txs-
W/ navigation
W/o navigation

Front A/C Wiring Diagram (2 of 2) for Lexus LS 430 2002

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List of elements for Front A/C Wiring Diagram (2 of 2) for Lexus LS 430 2002:

(left radiator side support) ec
(near ecm, in protective case) j/c 1
(near ecm, in protective case) short connector s1, s2
+b1
A/c ambient temperature sensor (behind left side of bumper fascia)
A/c comp relay
A/c control assembly (behind right side of dash)
A/c evaporative temperature sensor
A/c ig fuse 7.5a
A/c magnetic clutch & lock switch (right side of engine)
A/c room temperature sensor (left center of dash)
A13
Abodr
Abopa
Absdr
Abspa
Acmg
Aif
Air
Air inlet control servo motor
Air mix control servo motor (driver)
Air mix control servo motor (passenger)
Air vent mode control servo motor (driver)
Air vent mode control servo motor (passenger)
Amdb
Amdr1
Amdr2
Amdr3
Amdr4
Ampb
Ampa1
Ampa2
Ampa3
Ampa4
Aodb
Aodr1
Aodr2
Aodr3
Aodr4
Aopb
Aopa1
Aopa2
Aopa3
Aopa4
C-gnd
Computer data lines system
Cool air bypass servo motor (driver)
Cool air bypass servo motor (passenger)
Cooling fan ecu (on radiator support)
D-sig
Duct sensor (driver) (left side of dash)
Duct sensor (passenger) (right side of dash)
Ed (left firewall, top side)
Ef (side of left cylinder head)
Engine control module (left front of engine compt, in protective case)
Engine room 1 j/b (left front of engine compt)
Etam
Exhaust gas sensor (right side of engine)
Fan fuse 50a
Fan relay
Fr ig fuse 7.5a
Frs
Fusible link block (right rear of engine compt)
Gnd
Hot at all times
Hot in on or start
J/c 3 (near ecm, in protective case)
J/c 4 (near ecm, in protective case)
J/c 7 (below engine room 1 j/b)
J/c 7 (below engine room 1 r/b)
Lcki
Magnetic field sensor (w/compass) (center of dash)
Mopen
Mpx1
Mpx2
Mshut
Nca
Nox
Open
Pnk
Rec
Red
Rfc
S5-3
S5-5
Sg-1
Sg-2
Sg-3
Sg-4
Sg-5
Sg-7
Shield
Shut
Tam
Tel1
Telephone transceiver & speaker relay (in luggage compt)
Telin
Tfacedr
Tfacepa
Tpbdr
Tpbpa
Tpi
Vmid
Water valve servo motor
Wvig
Wvo
Wvs

Rear A/C Wiring Diagram for Lexus LS 430 2002

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List of elements for Rear A/C Wiring Diagram for Lexus LS 430 2002:

(dash harn, behind right side of dash)
(right kick panel) passenger side j/b
(w/ cooler) rear magnetic valve
A/c control assembly (behind right side of dash)
A/c fuse 7.5a
A/c solar sensor (rear)
A11
A12
Acc
Atx+
Atx-
Audio & rear a/c control switch
Auto
C11
Combination meter
Computer data lines system
Cool box illum
Dio
Dome fuse 10a
Driver side j/b (left kick panel)
E13
E16
E17
Exo
F j15
F11
F12
F13
F15
Frs
Fusible link block (right rear of engine compt)
G j12
G j13
G201 (right side of dash)
Gateway ecu (behind left end of dash)
Gauge fuse 10a
Gnd
Gtx+
Gtx-
H j14
Heater control switch (w/ navigation)
Heater control switch (w/o navigation)
Hic
Hot at all times
Hot in on or acc
Hot in on or start
Ig+
Ii (right side of shift lever)
J/c 10 (behind center of dash)
J/c 12, j/c 13 (behind center of dash)
J/c 14, j/c 15 (behind center of dash)
J/c 16, j/c 17 (behind center of dash)
J/c 23 (rearward of left rear fenderwell)
J12 g
J13 h
J16 c
J17 c
L14
Lug j/b fuse 7.5a
Luggage room j/b (left side of luggage compt)
Luggage room j/b ecu
Mpi1
Mpi2
Mpl1
Mpx+
Mpx-
Mpx-b
Mpx-b2 fuse 7.5a
Mpx-b3 fuse 7.5a
Mpx-ig
Mpx-ig fuse 7.5a
Mtx+
Mtx-
P-acc fuse 7.5a
P-gnd
P-ig fuse 7.5a
Passenger side j/b (right kick panel)
R-b
Radio & player
Rauto
Rdo
Rear a/c amplifier
Rear a/c unit
Rear blower motor
Rear blower resistor
Rear damper servo motor
Red
Rfr
Rhr
Rmgv
Rr a/c fuse 7.5a
Rr ecu-b fuse 7.5a
Rtx+
Rtx-
S28
S29
S5-4
Sfrs
Smok
Smoke sensor
Stereo component amplifier (right side of luggage compt)
Stereo component tuner
Tsrr
Tx+
Tx-
Txs+
Txs-
W/ cooler
W/ nav
W/ navigation
W/o cooler
W/o nav
W/o navigation

ANTI-LOCK BRAKES

Anti-lock Brake Wiring Diagrams (1 of 2) for Lexus LS 430 2002

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List of elements for Anti-lock Brake Wiring Diagrams (1 of 2) for Lexus LS 430 2002:

(under fusible link block)
+bi
Abs & trac & vsc actuator (left rear of engine compt)
Abs 1 fuse 40a
Abs 2 fuse 40a
Abs 3 fuse 7.5a
Abs motor relay
Abs sol relay
Ast
B10
B12
B13
B14
B15
B16
B18
B19
B20
B21
B22
B23
B24
Brake fluid level switch (on master cylinder resevoir)
Computer data lines system
Eb (under fusible link block)
Ec (left radiator side support)
Eng+
Eng-
Engine control module (left front of engine compt)
Engine room r/b 3 (left rear of engine compt)
Fl+
Fl-
Flo
Fr+
Fr-
Fro2
Fss
Fusible link block (right rear of engine compt)
Gnd1
Gnd2
Gnd3
Gnd4
Headlight beam level control ecu (behind right side of dash)
Hot at all times
J/c 3 (left front of engine compt, in protective case)
Lbl-
Left front abs speed sensor
Master cylinder pressure sensor
Mpx1
Mpx2
Mr2
Neo
Pmc
Pnk
Pps solenoid (left front of engine compt)
R1+
R2+
Red
Right front abs speed sensor
S10
S13
Sflh
Sflr
Sfrh
Sfrr
Shield
Skid control ecu (behind left side of dash)
Smc1
Smc2
Smv1
Smv2
Sol+
Sol-
Spdl
Spdr
Srcf
Srcr
Srlh
Srlr
Srmf
Srmr
Srrh
Srrr
Trc+
Trc-
Vcm

Anti-lock Brake Wiring Diagrams (2 of 2) for Lexus LS 430 2002

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List of elements for Anti-lock Brake Wiring Diagrams (2 of 2) for Lexus LS 430 2002:

(left side of dash) ig
+bo
Abs ind
Abs-ig fuse 7.5a
Air suspension ecu (behind right side of dash)
Bat
Brake pedal load sensing switch (on brake pedal bracket)
Chs+
Chs-
Combination meter
Computer data lines system
Cpu
Csw
D/g
Data link connector 3 (below left side of dash)
Dome fuse 10a
Driver side j/b (at left kick panel)
Driver side j/b ecu (at left kick panel)
E10
E13
E14
E16
Ess
Fro
Fsw+
Fsw-
Gauge fuse 7.5a
Ggnd
Gl1
Gl2
Gyaw
Hot at all times
Hot in on or start
Ig1
Ih (right side of shift lever)
Ik (right dash side panel)
J/c 10 (behind upper center of dash)
J/c 12 (behind upper center of dash)
J/c 12, j/c 13 (behind upper center of dash)
J/c 16, j/c 17 (behind upper center of dash)
J12
J13
J16
J17
Left rear abs speed sensor
Mpx-b2 fuse 7.5a
Mpx1
Mpx2
Parking brake switch (on brake lever)
Passenger side j/b (at right kick panel)
Pkb
Pnk
Red
Right rear abs speed sensor
Rl+
Rl-
Rr+
Rr-
S11
S12
Shield
Skid control ecu (behind left side of dash)
Slip ind
Sp1
Speedo
Ss1+
Ss1-
Steering sensor (inside top of steering column)
Stop fuse 5a
Stoplight switch (on bracket, above brake pedal)
Stp
Traction control switch
Trig
Vgs
Vsc off ind
Vsc warning buzzer (below lower left side of dash)
Vys
Yaw
Yaw rate sensor (below rear of center console)
Yaw2
Yss

ANTI-THEFT

Anti-theft Wiring Diagram (1 of 2) for Lexus LS 430 2002

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List of elements for Anti-theft Wiring Diagram (1 of 2) for Lexus LS 430 2002:

(right side of shift lever) ih
+b1
+b2
Acc
Airbag sensor assembly (behind lower center of dash)
B j15
Bdr
Bzr
Bzr2
Bzr3
Bzrg
Cpse
Cpub
Cty
D-acc fuse 7.5a
D24
D25
Data
Dle
Door lock control receiver (inner mirror)
Driver door ecu (left front door)
Driver side j/b (at left kick panel)
E10
E11
Engine room r/b 2 (on left front of engine compt)
F11
F16
F17
F18
Front controller
Front passenger door ecu (in right front door)
Gateway ecu (behind left end of dash)
Ground
Gsw
Hot at all times
I15
I19
Ii (right side of shift lever)
Ill+
Ind
Ind2
J/c 10 & j/c 11 (behind upper center of dash)
J/c 21 (forward of left rear fenderwell)
J/c 27 (forward of right rear fenderwell)
J14
Junction connector (behind upper center of dash)
Keyless buzzer (inside top of left front fender, near base of "a" pillar)
Keyless buzzer on/off switch
Kul
Left front door courtesy switch
Left front door lock motor
Lsw
Mpd1
Mpd2
Mpl1
Mpl2
Mpx-ig fuse 7.5a
Mpx1
Mpx2
Mul
Passenger side j/b (at right kick panel)
Pct
Pnk
Power window master switch
Pwe
Pws
Rc0
Rda
Red
Right front door courtesy switch
Right front door lock control switch
Right front door lock motor
Rssi
Security fuse 7.5a
Security indicator light
Sh-
Sig
Theft deterrent ecu (behind upper right center of dash)
Theft deterrent horn (in right rear of engine compartment)
W/l
Warning systems
Wls1
Wlsw

Anti-theft Wiring Diagram (2 of 2) for Lexus LS 430 2002

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List of elements for Anti-theft Wiring Diagram (2 of 2) for Lexus LS 430 2002:

(behind upper center of dash) transponder key computer
(left radiator side support) ec
(right side of steering column) transponder key amplifier
Agnd
Ant1
Ant2
Bdr
Bu-
Bubs
Code
Coil
Cpse
Cpub
Cty
D door fuse 25a
Driver side j/b
Driver side j/b ecu (at left kick panel)
E18
Efii
Efio
Engine control modue (left side of engine compt)
Engine hood courtesy switch (on front center of engine compartment)
F17
G10
Gnd
Ground
Hdcy
Headlights system
Hot at all times
Hot in on or start
Hrly
I10
I13
I19
I21
I22
Ig2
Ig2 fuse 7.5a
Ih (right side of shift lever)
Imi
Imo
J/b 24 (left rear of luggage compt lid)
J/c 21 (forward of left rear fenderwell)
J/c 23 (rearward of left rear fenderwell)
J/c 27 (forward of right rear fenderwell)
J/c 30 (rearward of right rear fenderwell)
J/c 7 (below engine room 1 j/b & engine room 1 r/b)
J10
J11
J12
J13
Junction connector (behind upper center of dash)
Key
Ksw
L12
L14
Left rear door courtesy switch
Left rear door ecu (in left rear door)
Left rear door unlock motor
Lh rr door fuse 20a
Lsw
Luggage compartment door key unlock switch
Luggage room j/b
Luggage room j/b ecu (on left side of luggage compartment)
Mpx-
Mpx-b1 fuse 7.5a
Mpx1
Mpx2
P door fuse 25a
P-gnd
Passenger side j/b
Passenger side j/b (at right kick panel)
Pcti
R13
R14
Red
Rh rr door fuse 20a
Right rear door courtesy switch
Right rear door ecu (in right rear door)
Right rear door unlock motor
Rxck
Sel1
Sig
Tkul
Txct
Vc12
Warning systems

BODY COMPUTER

Driver Side J/B ECU Wiring Diagram for Lexus LS 430 2002

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List of elements for Driver Side J/B ECU Wiring Diagram for Lexus LS 430 2002:

(w/ compass)
(w/o compass)
Acc
Am1 fuse 7.5a
Anti-lock brakes system
Anti-theft system
B/anc
Bes
Bklr
Bu+
Bu-
Cltb
Clte
Clts
Computer data lines system
D b/anc fuse 5a
Dbil
Dbkl
Dbm+
Dmb-
Driver side j/b (at left kick panel)
Driver side j/b ecu (at left kick panel)
E17
Engine controls system
Exterior lights system
Fuel
Gnd
Haz
Haz fuse 15a
Hdcl
Hdcy
Head
Headlights system
Hot at all times
Hot in run or start
Hrly
Ig (left side of dash)
Ignition switch
Ih (right side of shift lever)
Instrument cluster system
Interior lights system
J/c12 & j/c13 (behind upper center of dash)
J/c14 & j/c15 (behind upper center of dash)
J12
J13
J14
J15
Lock
Mind
Mirrors system
Mpx-b
Mpx-b3 fuse 7.5a
Mpx-ig
Mpx-ig fuse 7.5a
Mpx1
Mpx2
Mpx3
Msw
Panel fuse 7.5a
Panel1
Panel2
Passenger side j/b (at right kick panel)
Passenger side j/b ecu (at right kick panel)
Passive restraint system
Pnk
R/e
Red
Ret
Rtr
Run
Shift interlock system
Start
Stp
Stpa
Stpi
Stpo
Sw1
Sw2
Sw3
Tr+
Tr1
Tr2
Tr3
Trunk, tailgate, fuel doors system
Tsw
Turn lh
Turn rh
Warning system
Wiper/washer system

Front Controller Wiring Diagram for Lexus LS 430 2002

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List of elements for Front Controller Wiring Diagram for Lexus LS 430 2002:

C12
Computer data lines system
Cral
Crar
Driver side j/b (at left kick panel)
Engine room no. 1 r/b (left front of engine compt, behind headlight)
Engine room no. 2 r/b (left front of engine compt, behind headlight)
Exterior lights system
Ffog
Fhhi
Fhor
Fmb3
Fmig
Fogl
Fogr
Fr fog fuse 15a
Front controller
Ftal
Fwas
H-lp hi fuse 20a
Headlights system
Hlhl
Hlhr
Horh
Horl
Horn
Horn fuse 10a
Hot at all times
Hot in on or start
Ig (left side of dash)
Instrument cluster system
Mpx-b3 fuse 7.5a
Mpx-ig fuse 7.5a
Mpx1
Mpx2
Passenger side j/b (at right kick panel)
Red
Sidl
Sidr
Tail fuse 7.5a
Washer fuse 20a
Wiper/washer system
Wlvl

Luggage Room J/B ECU Wiring Diagram for Lexus LS 430 2002

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List of elements for Luggage Room J/B ECU Wiring Diagram for Lexus LS 430 2002:

(rearward of left rear fenderwell) j/c23
Acc
Air conditioning system
Auto
Bck1
Bdcy
Bk/up
Bm (left quarter panel)
Bubs
Computer data lines system
Driver side j/b (at left kick panel)
Exterior lights
Exterior lights system
F12
F13
Frs
Fsme
Fsms
Fsmv
Fsse
Fsss
Fssv
Fuel opn fuse 10a
Fuel opn(o)
Fuel opn(p)
Fusible link block (on right rear of engine compt)
Hic
Hot at all times
Hot in on or start
Instrument cluster system
Interior lights system
L-ig1 relay & l-acc relay
L-o/c(p)
L12
L13
L14
Lce1
Lcls
Lcm+
Lcm-
Lcty
Lgcy
Lglp
Lopn
Lug j/b fuse 50a
Luggage room j/b (left side of luggage compt)
Luggage room j/b ecu (left side of luggage compt)
Mpx
Mpx+
Mpx-
Mpx-b
Mpx-b3 fuse 7.5a
Mpx-ig
Mpx-ig fuse 7.5a
Navigation system
P-gnd
Passenger side j/b (at right kick panel)
Power distribution system (l-acc relay)
Power distribution system (l-ig1 relay)
Power windows system (rr s/ shade relay)
Rbil
Red
Rfr
Rhr
Rmgv
Rss
Seats system
Smok
Stop1
Stop2
Stp1
Stp2
Stp3
Tail1
Tail2
Til1
Til2
Til3
Til4
Tkul
Trunk, tailgate & fuel doors system

Passenger Side J/B ECU Wiring Diagram for Lexus LS 430 2002

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List of elements for Passenger Side J/B ECU Wiring Diagram for Lexus LS 430 2002:

Acc
Airbag
Altl
Am1 fuse 7.5a
B/anc
Back
Bkll
Combination switch
Computer data lines system
Cspt
Driver side j/b (at left kick panel)
E17
Engine controls system
Engine room r/b 1 (left front of engine compt, behind headlight)
Fspt
Gnd
Gnd1
Hdlv
Headlights system
Hot at all times
Hot in on or start
Ignition switch
Ii (right side of shift lever)
Ik (right dash side panel)
Ile
Instrument cluster system
Interior lights system
Lcty
Lock
Memory & wiper/washer system
Mpx-
Mpx-b
Mpx-b2 fuse 7.5a
Mpx-ig
Navigation system
P b/anc fuse 5a
Passenger side j/b (at right kick panel)
Passenger side j/b ecu (at right kick panel)
Passive restraint system
Pbil
Pbm+
Pbm-
Per
Pind
Pnk
Power windows system
Rcty
Rev
Rrsw
Run
S/m
S/s
Snow
Start
Transmissions system
Warning system
Wip
Wip fuse 30a
Wiper/washer system
Wng

COMPUTER DATA LINES

Data Link Connector Wiring Diagram for Lexus LS 430 2002

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List of elements for Data Link Connector Wiring Diagram for Lexus LS 430 2002:

(right side of shift lever) ih
A21
Air suspension ecu (behind right side of dash)
Bat
C12
C15
Combination meter
Data link connector 3 (below left side of dash)
Driver side j/b (at left kick panel)
Ef (side of left cylinder head)
Engine control module (on left front of engine compt, in protective case)
F16
Hot at all times
J/c 13 (behind upper center of dash)
J/c j16, j17 (behind upper center of dash)
J/c j3, j4 (near engine control module, in protective case)
Obd fuse 7.5a
Opb
S11
Sil
Skid control ecu (behind left side of dash)
Tac
Tach
Wfse

High/Low Bus Wiring Diagram (1 of 2) for Lexus LS 430 2002

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List of elements for High/Low Bus Wiring Diagram (1 of 2) for Lexus LS 430 2002:

(behind left side of dash) data link connector 3
(right side of shift lever) ih
Acc
Atx+
Atx-
Batt
Bu-
Bubs
C13
C14
C17
Center cluster integration panel
Clearance sonar ecu (on left side of luggage compt)
Combination switch
D-acc fuse 7.5a
D28
Driver seat ecu (below left side of driver's seat)
Driver side j/b (at left kick panel)
Driver side j/b ecu (at left kick panel)
E16
Engine room r/b 2 (on left front of engine compt, behind headlight)
F11
F18
Front controller
Gateway ecu (behind left end of dash)
Gnd
Gtx+
Gtx-
Hot at all times
Hot in on or accy
Hot in on or start
I14
J/c 31 (behind left rear seat back)
J/c j10, j11 (behind upper center of dash)
J/c j12, j13 (behind upper center of dash)
L14
Left rear seat ecu (behind left rear seat back)
Luggage room j/b ecu (on left side of luggage compt)
Mpd1
Mpd2
Mpi1
Mpi2
Mpl1
Mpl2
Mpx
Mpx+
Mpx-
Mpx-b2 fuse 7.5a
Mpx-ig fuse 7.5a
Mpx1
Mpx2
Mpx3
Multi- display
Passenger side j/b (at right kick panel)
Power tilt & power telescopic ecu (behind left side of dash)
R25
R27
Radio & player
Rear seat control switch
Red
Sil
Theft deterrent ecu (behind upper right center of dash)
Transponder key computer (behind upper center of dash)
Tx+
Tx-
Txs+
Txs-
W/ navigation
W/ park assist
W/o navigation

High/Low Bus Wiring Diagram (2 of 2) for Lexus LS 430 2002

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List of elements for High/Low Bus Wiring Diagram (2 of 2) for Lexus LS 430 2002:

A/c control assembly (behind right side of dash)
A11
A24
Airbag
Airbag sensor assembly (behind lower center of dash, on transmission tunnel)
C12
C14
Combination meter
Cpu
D25
Driver door ecu
Driver side j/b (at left kick panel)
E10
E11
Engine control module (on left front of engine compt, in protective case)
F13
F17
F18
Front passenger door ecu
I18
Left rear door ecu
Moon roof control ecu (at front of roof opening)
Mpx
Mpx+
Mpx-
Mpx1
Mpx2
Overhead j/b (at front of roof opening)
Passenger side j/b
Passenger side j/b (at right kick panel)
Passenger side j/b ecu (at right kick panel)
R13
R14
R26
Rain sensor (near top center of windshield)
Right rear door ecu
Right rear seat ecu (behind right rear seat back)
Skid control ecu (behind left side of dash)
T15
Telephone transceiver & speaker relay (w/ link system: on right side of luggage compt, w/o link system: on left side of luggage compt)

COOLING FAN

Cooling Fan Wiring Diagram for Lexus LS 430 2002

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List of elements for Cooling Fan Wiring Diagram for Lexus LS 430 2002:

(left radiator side support) ec
(side of left cylinder head) ef
+b1
A/c comp relay
A/c control assembly (behind right side of dash)
A/c fuse 7.5a
A/c ig fuse 7.5a
A/c magnetic clutch & lock sensor (right side of engine)
A11
Acc
Acmg
Computer data lines system
Cooling fan ecu (on radiator support)
Driver side j/b (left kick panel)
E14
E17
Ed (left firewall, top side)
Engine control module (left front of engine compt, in protective case)
Engine coolant temperature sensor (on front center of engine)
Engine room 1 j/b (left front of engine compt)
Ethw
F12
Fan fuse 50a
Fan relay
Fr ig fuse 7.5a
Fusible link block (right rear of engine compt)
Gnd
Hot at all times
Hot in on or acc
Hot in on or start
Ik (right dash side panel)
J/c 1 (near ecm, in protective case)
J/c 14, j/c 15 (behind upper center of dash)
J/c 3 (near ecm, in protective case)
J/c 4 (near ecm, in protective case)
J/c 7 (behind left headlamp)
J/c 7 (below engine room 1 j/b)
J14 g
J15 g
Lcki
Mpx+
Mpx1
Mpx2
P-acc fuse 7.5a
P-ig fuse 7.5a
Passenger side j/b (right kick panel)
Passenger side j/b (right kick [panel)
Rfc
Short connector s1, s2
Thw

CRUISE CONTROL

Cruise Control Wiring Diagram, with Dynamic Laser Controls (1 of 2) for Lexus LS 430 2002

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List of elements for Cruise Control Wiring Diagram, with Dynamic Laser Controls (1 of 2) for Lexus LS 430 2002:

(below engine room j/b 1 & engine room r/b 1)
(engine harn, left front of engine compt)
(engine harn, near engine room r/b 1) e9
(near ecm box)
(near eng cont mod, in pro- tective case)
+b1
+bm
Accel position sensor (behind left center of dash)
At4
Batt
C10
C15
Cancel
Cchg
Ccs
Computer data lines system
Cruise
Cruise control switch
D position switch (park/neutral position switch)
Distance control ecu (behind right side of dash)
Driver side j/b (at left kick panel)
Driver side j/b ecu (at left kick panel)
E9 (engine harn, near engine room r/b 1)
Ec (left radiator side support)
Ef (side of left cylinder head)
Efi 1 fuse 30a
Efi main relay
Elc
Eng+
Eng+ neo eng-
Eng-
Engine control module (left front of engine compt, in protective case)
Engine room r/b 1 (in engine room j/b 1, behind left headlight)
Ep1
Ep2
Epa
Eptk
Etcs fuse 10a
F16
Fr ig fuse 7.5a
Gnd
Hot at all times
Hot in on or start
Igb
Ign fuse 7.5a
Igsw
J/c 1
J/c 1,2 (near eng cont mod, in protect- ive case)
J/c 2
J/c 3 (near engine control module, in protective case)
J/c 3, 4 (near ecm, in protec- tive case)
J/c 7
Laser radar sensor (behind right side of front bumper fascia)
Lcs
Lgnd
Lrdd
Lrrd
Mode
Mpx1
Mpx1 mpx2 s12
Mpx2
Mrel
Neo
Nssd
Obd fuse 7.5a
Passenger side j/b (right kick panel)
Pnk
Red
Res/ acc
S13
S2 short conn (near s1 eng cont mod, in pro- tective case)
Set/ coast
Sgnd
Shift lock control ecu (below shift lever, in center console)
Short conn
Sil
Skid control ecu (behind left side of dash)
Sp1 s11
St1-
Stop fuse 5a
Stoplight switch (on brake pedal bracket)
Stp
Stpi
Stpo
Trc+
Trc+ trc- s10
Trc-
Vcp1
Vcp2
Vcpa
Vpa
Vpa1
Vpa2
Vptk
Wfse

Cruise Control Wiring Diagram, with Dynamic Laser Controls (2 of 2) for Lexus LS 430 2002

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List of elements for Cruise Control Wiring Diagram, with Dynamic Laser Controls (2 of 2) for Lexus LS 430 2002:

(behind upper center of dash)
(below left side of dash) data link connector 3
(near engine control module, in protective case)
(right side of shift lever)
Bat
Combination meter
Computer data lines system
Cpu
Cruise ind
Dome fuse 10a
Driver side j/b (at left kick panel)
Driver side j/b (left kick panel)
E01
E02
E03
E13
E16
E19
Ee (side of right cylinder head)
Ef (side of left cylinder head)
Engine control module (left front of engine compt, in protective case)
Eoil
Eta
F15
Gauge fuse 7.5a
Ge01
Hot at all times
Hot in on or start
Ih (right side of shift lever)
J/c 10 (behind upper center of dash)
J/c 12 (behind upper center of dash)
J/c 13 (behind upper center of dash)
J/c 16
J/c 17
J/c 3
J/c 4
J/c 5 (near engine control module, in protective case)
Me01
Mpx-b2 fuse 7.5a
Oil
Passenger side j/b (at right kick panel)
Red
Shielded
Sil
Sln+
Sln-
Slt+
Slt-
Slu+
Slu-
Sp2+
Sp2-
Speedometer
Throttle control motor (on throttle body)
Throttle position sensor (on throttle body)
Transmission systems
Vehicle speed sensor (on transmission)
Vta
Vta2
Wfse

Cruise Control Wiring Diagram, without Dynamic Laser Controls (1 of 2) for Lexus LS 430 2002

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List of elements for Cruise Control Wiring Diagram, without Dynamic Laser Controls (1 of 2) for Lexus LS 430 2002:

(engine harn, left front of engine compt)
(engine harn, near engine room r/b 1) e9
(in ecu box)
(left radiator side support)
+b1
+bm
Accel position sensor (behind left center of dash)
At4
Batt
C10
C15
Cancel
Ccs
Computer data lines system
Cruise
Cruise control switch
D position switch (park/neutral position switch)
Driver side j/b (at left kick panel)
Driver side j/b ecu (at left kick panel)
E9 (engine harn, near engine room r/b 1)
Efi 1 fuse 30a
Efi main relay
Eng+
Eng-
Engine control module (left front of engine compt, in protective case)
Engine room r/b 1 (in engine room j/b 1, behind left headlight)
Ep1
Ep2
Epa
Eptk
Etcs fuse 10a
F16
Fr ig fuse 7.5a
Hot at all times
Hot in on or start
Ign fuse 7.5a
Igsw
J/c 1
J/c 2
J/c 3 (near engine control module, in protectivr case)
J/c 7 (below engine room j/b 1 & engine room r/b 1)
J1 junction connector (near engine control module, in protective case)
Mpx1
Mpx2
Mrel
Neo
Nssd
Obd fuse 7.5a
Passenger side j/b (right kick panel)
Pnk
Red
Res/ acc
S10
S11
S12
S13
S2 short connector (near ecm, in protec- tive case)
Set/ coast
Shift lock control ecu (below shift lever, in center console)
Sil
Skid control ecu (behind left side of dash)
St1-
Stop fuse 5a
Stoplight switch (on brake pedal bracket)
Stp
Stpi
Stpo
Trc+
Trc-
Vcp1
Vcp2
Vcpa
Vpa
Vpa1
Vpa2
Vptk
Wfse

Cruise Control Wiring Diagram, without Dynamic Laser Controls (2 of 2) for Lexus LS 430 2002

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List of elements for Cruise Control Wiring Diagram, without Dynamic Laser Controls (2 of 2) for Lexus LS 430 2002:

(behind upper center of dash)
(below left side of dash) data link connector 3
(near engine control module, in protective case)
(right side of shift lever)
(side of right cylinder head)
Bat
Combination meter
Computer data lines system
Cpu
Cruise ind
Dome fuse 10a
Driver side j/b (at left kick panel)
Driver side j/b (left kick panel)
E01
E02
E03
E13
E16
E19
Ef (side of left cylinder head)
Engine control module (left front of engine compt, in protective case)
Eoil
Eta
F15
Gauge fuse 7.5a
Ge01
Hot at all times
Hot in on or start
Ih (right side of shift lever)
J/c 10 (behind upper center of dash)
J/c 12 (behind upper center of dash)
J/c 13 (behind upper center of dash)
J/c 16
J/c 17
J/c 3
J/c 4
J/c 5 (near engine control module, in protective case)
Me01
Mpx-b2 fuse 7.5a
Oil
Passenger side j/b (at right kick panel)
Red
Shielded
Sil
Sln+
Sln-
Slt+
Slt-
Slu+
Slu-
Sp2+
Sp2-
Speedometer
Throttle control motor (on throttle body)
Throttle position sensor (on throttle body)
Transmission systems
Vehicle speed sensor (on transmission)
Vta
Vta2
Wfse

DEFOGGERS

Heated Mirrors Wiring Diagram for Lexus LS 430 2002

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List of elements for Heated Mirrors Wiring Diagram for Lexus LS 430 2002:

(forward of left rear fenderwell)
(forward of right rear fenderwell)
Bdr
Computer data lines system
Cpub
D door fuse 25a
D25
Driver door ecu (inside front of left front door)
Driver side junction block (at left kick panel)
F11
F17
Front passenger door ecu (inside right front door)
G10
Gnd
Hot at all times
Hot in on or start
Htr+
Htr-
I15
J/b 21
J/b 27
J/c 10, j/c 11 (behind upper center of dash)
J/c 12,
J/c 13 (behind upper center of dash)
J10
Left outside rear view mirror
Mirror heater
Mpx-b1 fuse 7.5a
Mpx-ig fuse 7.5a
Mpx1
Nca
P door fuse 25a
Passanger side junction block (at right kick panel)
Red
Right outside rear view mirror
Sig

Rear Defogger Wiring Diagram for Lexus LS 430 2002

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List of elements for Rear Defogger Wiring Diagram for Lexus LS 430 2002:

A/c control assembly (behind right side of dash)
A11
C13
Defog fuse 40a
Defog relay
Driver side junction block (at left kick panel)
E7 (engine harn, near ecm)
Engine room r/b 1 (left front of engine compt, behind headlight)
Engine room r/b 2 (left front of engine compt, behind headlight)
Fr ig fuse 5a
Fusible link block (right rear of engine compt)
Hot at all times
Ig (left side of dash)
J/c 1 (near engine control module, in protective case)
J/c 27 (forward of right rear fenderwell)
Noise filter (behind left headlight)
R22
R23
Rdfgr
Rear window defogger
Red

ELECTRONIC POWER STEERING

Electronic Power Steering Wiring Diagram for Lexus LS 430 2002

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List of elements for Electronic Power Steering Wiring Diagram for Lexus LS 430 2002:

+bi
+bo
Abs-ig fuse 7.5a
Bat
Combination meter
Connector no.3 (below left side of dash)
D/g
Data link
Driver side j/b (left kick panel)
E10
Eb (under fusible link block)
Ec (left radiator side support)
Ess
Gnd1
Gnd2
Gnd3
Gnd4
Hot at all times
Hot in on or start
Ig (left side of dash)
Ig1
J/c 12, 13 (behind upper center of dash)
J/c 16, 17 (behind upper center of dash)
J/c12
J/c13
J/c16
J/c17
Mpx-b2 fuse 7.5a
Mxp1
Passenger side j/b (right kick panel)
Pnk
Pps solenoid (on left front of engine compt)
S10
S11
S12
S13
Skid control ecu (behind left side of dash)
Sol+
Sol-
Sp1
Ss1+
Ss1-
Steering sensor (inside top of steering column)
Trig

ELECTRONIC SUSPENSION

Electronic Suspension Wiring Diagram (1 of 2) for Lexus LS 430 2002

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List of elements for Electronic Suspension Wiring Diagram (1 of 2) for Lexus LS 430 2002:

(behind right side of dash) air suspension ecu
(inside left front fenderwell)
(inside right front fenderwell)
(left front of engine compt)
(left side of engine compartment
(right side of engine compartment)
(under fusible link block)
A20
A21
Acceleration sensor (left side of luggage compt)
Airsus fuse 20a
Bn (right rear floor partition panel)
Chs+
Chs-
Computer data lines
Ec (left radiator side support)
Engine control module
Engine room j/b (on left side of engine compt, forward of strut tower)
Erl
Err
Ess
Fal+
Fal-
Far+
Far-
Fbl-
Fbr+
Fbr-
Fro
Ggnd
Gl1
Gnd
Height control sensor (left front)
Height control sensor (rear) (under center rear of vehicle)
Height control sensor (right front)
Hot in on or start
Hsw
Ig (left side of dash)
Instrument cluster
J/c 16/17 (behind upper center of dash)
J/c 18 (upper right side of dash)
J/c 27
J/c 28/29 (rearward of right rear fenderwell)
Mpx1
Mpx2
Pnk
Ral+
Ral-
Rar+
Rar-
Rbl+
Rbl-
Rbr+
Rbr-
Red
Rm+
Rm-
Sbl1
Sbl2
Sbl3
Sbr1
Sbr2
Sbr3
Sgfl
Sgfr
Sgl2
Sgl3
Sgr1
Sgr2
Sgr3
Sgrr
Shb
Shf2
Shfl
Shfr
Shg
Shr2
Shrl
Shrr
Sil
Slex
Slfl
Slfr
Slrl
Slrr
Ss2+
Ss2-
Steering sensor (top of steering column)
Suspension control actuator (left front)
Suspension control actuator (left rear) (base of left "c" pillar)
Suspension control actuator (right front)
Suspension control actuator (right rear) (base of right "c" pillar
Sw1
Tach
Vgs

Electronic Suspension Wiring Diagram (2 of 2) for Lexus LS 430 2002

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List of elements for Electronic Suspension Wiring Diagram (2 of 2) for Lexus LS 430 2002:

(above right kick panel) short connector (height control)
(behind right side of dash)
(left side of dash)
(right front of engine compt)
Absorber control switch
Air sus fusible link 40a
Air sus relay
Bm (left quarter panel)
C15
Chs+
Chs-
Computer data lines
Data link connector 3 (below left side of dash)
Ea (right radiator side support)
Eb (under fusible link block)
Fro
Front height control valve (on right front of engine compt)
Fusible link block (right rear of engine compartment)
Headlight beam level control ecu
Height control compressor
Height control exhaust valve (right front of engine compt)
Height control switch
Hot at all times
Ii (right side of shift lever)
Ik (right dash side panel)
Ik (right side of shift lever)
Ind light
Instrument cluster
J/c 12/13 (upper center of dash)
J/c 23
Lh+
Luggage room j/b (left side of luggage compt)
Mpx1
Mpx2
Passenger side j/b (at right kick panel)
Pnk
Rear height control valve (front of engine compt)
Rh+
Rm+
Rm-
S11
S12
Sbf
Sgf
Shfl
Shrl
Skid control ecu
Tems sport

ENGINE PERFORMANCE

4.3L

4.3L, Engine Performance Wiring Diagrams (1 of 6) for Lexus LS 430 2002

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List of elements for 4.3L, Engine Performance Wiring Diagrams (1 of 6) for Lexus LS 430 2002:

(at left kick panel) driver side j/b
(behind upper center of dash)
(right side of shift lever)
+b1
+bm
A/c system
A20
Accelerator position sensor (behind left center of dash)
Acmg
Air suspension ecu (behind right side of dash)
Anti-theft system (transponder key computer)
Batt
C12
C15
Combination meter
Computer data lines system
Cooling fans system
Cpu
Distance control ecu (behind right side of dash)
Ec (left radiator side support)
Elc
Eng+
Eng-
Engine control module (ecm) (on left front of engine compt, in protective case)
Ep1
Ep2
Epa
Eptk
Etam
Fpr
Htl2
Htr2
Igsw
Imi
Imo
J/c 10
J/c 12
J/c 13 (behind upper center of dash)
J/c 16, j/c 17
J/c 16, j/c 17 (behind upper center of dash)
J16
J17
Lcs
Mil ind
Mpx1
Mpx2
Mrel
Neo
Oxl2
Oxr2
Pnk
Ptnk
Pwr
Red
Rfc
S10 trc+
S11 sp1
S12 mpx2
S13
Short connector s1, s2
Sil
Skid control ecu (behind left side of dash)
Snow
Speedo- meter
Sta
Stp
Tach
Tam
Tbp
Trc+
Trc-
Vapor pressure sensor (below right rear of vehicle)
Vcc
Vcp1
Vcp2
Vcpa
Vpa
Vpa1
Vpa2
Vptk
Wfse

4.3L, Engine Performance Wiring Diagrams (2 of 6) for Lexus LS 430 2002

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List of elements for 4.3L, Engine Performance Wiring Diagrams (2 of 6) for Lexus LS 430 2002:

C/ opn relay
Data link connector 3 (below left side of dash)
Dome fuse 10a
Driver side j/b (at left kick panel)
Driver side j/b ecu (at left kick panel)
E13
E16
E9 (engine harn, near engine room r/b 1)
Ec (left radiator side support)
Efi 1 fuse 30a
Efi main relay
Engine room r/b 1 (on left front of engine compt, behind headlight)
Etcs fuse 10a
F/ pmp relay
Fuel pump & fuel sender (under left rear of vehicle)
Fuel pump resistor (on left side of engine compt)
Gauge fuse 7.5a
Hot at all times
Hot in on or start
J/c 1, j/c 2 (near ecm, in protective case)
J/c 23 (left quarter panel)
J/c 7 (below engine room j/b 1)
Mpx-b2 fuse 7.5a
Passenger side j/b (at right kick panel)
Red
Sil
Stpi
Stpo
Tac
Vsv (pressure switching valve) (below right rear of vehicle)
Wfse

4.3L, Engine Performance Wiring Diagrams (3 of 6) for Lexus LS 430 2002

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List of elements for 4.3L, Engine Performance Wiring Diagrams (3 of 6) for Lexus LS 430 2002:

(at left kick panel) driver side j/b
(below engine room j/b 1) j/c 7
(engine harn, near ecm)
(generator) charging system
(on right side of transmission) park/neutral position switch
Acc
Braided
C14
E10 (engine harn, right side of firewall)
Ee (side of right cyl head)
Efi 2 fuse 7.5a
Eknl
Engine control module (ecm) (on left front of engine compt, in protective case)
Engine room r/b 1 (on left front of engine compt, behind headlight)
Eoil
Eol1
F14
Fr ig fuse 7.5a
Fusible link block (on right rear of engine compt)
Hot at all times
Hot in on or start
Htl
Ign fuse 7.5a
Ignition switch
Knkl
Knkr
Left knock sensor (on left side of engine)
Lock
Mol
Nco+
Nco-
O/d direct clutch speed sensor (on left side of transmission)
Oil
Oxl1
P/n
Red
Right knock sensor (on right side of engine)
Sln+
Sln-
Slt+
Slt-
Slu+
Slu-
Sp2+
Sp2-
Sta fuse 7.5a
Start
Starter
Starter relay
Vehicle speed sensor (on transmission)

4.3L, Engine Performance Wiring Diagrams (4 of 6) for Lexus LS 430 2002

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List of elements for 4.3L, Engine Performance Wiring Diagrams (4 of 6) for Lexus LS 430 2002:

(above brake pedal, on bracket) stoplight switch
(at right kick panel) passenger side j/b
(below shift lever, in center console) shift lock control ecu
(on left center of engine) engine oil level sensor
(on right side of transmission) a/t indicator light switch (integral to park/neutral position switch)
At4
Atl
C10
C16
Driver side j/b
Driver side j/b (at left kick panel)
Ef (side of left cyl head)
Electronically controlled transmission solenoid (on left side of transmission)
Hot at all times
J/c 3, j/c 4 (near ecm, in protective case)
J/c 8 (behind left end of dash)
Nssd
Nssl
Red
Sln+
Sln-
Slt+
Slt-
Slu+
Slu-
Stop fuse 5a

4.3L, Engine Performance Wiring Diagrams (5 of 6) for Lexus LS 430 2002

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List of elements for 4.3L, Engine Performance Wiring Diagrams (5 of 6) for Lexus LS 430 2002:

(at right kick panel) passenger side j/b ecu
(dash harn, behind left side of dash)
(engine harn, e12
(engine harn, top left side of engine)
(near ecm, in protective case) j/c 5, j/c 6
(right front of engine) right bank noise filter (ignition)
Computer data lines system
E12
E13
E2g
Ef (side of left cyl head)
Electronically controlled transmission pattern select switch
Engine coolant temperature sensor (on front center of engine)
Engine room r/b 1 (on left front of engine compt, behind head- light)
Fuel inj 1
Fuel inj 2
Fuel inj 3
Fuel inj 4
Fuel inj 5
Fuel inj 6
Fuel inj 7
Fuel inj 8
Heated oxygen sensor (bank 1 sensor 1) (on exhaust system, on left side of engine)
Heated oxygen sensor (bank 1 sensor 2) (on exhaust system, below vehicle)
Heated oxygen sensor (bank 2 sensor 1) (on exhaust system, on right side of engine)
Heated oxygen sensor (bank 2 sensor 2) (on exhaust system, below vehicle)
Hot in on or start
Htl
Htr
Ik (right dash side panel)
Inj fuse 10a
Mass airflow meter (right side of engine compt, near air box)
Mpx-
Ox2
Pwr
Red
Snow
Tha
Top rear of engine)
Vsv (acis) (on right rear of engine)
Vsv (canister closed valve) (on right side of engine compt)
Vsv (evap) (on left rear of engine)

4.3L, Engine Performance Wiring Diagrams (6 of 6) for Lexus LS 430 2002

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List of elements for 4.3L, Engine Performance Wiring Diagrams (6 of 6) for Lexus LS 430 2002:

(engine harn, top left side of engine)
(engine harn, top rear of engine)
(engine harn, top right side of engine)
(left rear of engine) left bank noise filter (ignition)
(near ecm, in protective case) j/c 5, j/c 6
A/c system
Acis
Braided
Camshaft position sensor (on front of left cyl head)
Ccv
Crankshaft position sensor (on left front of engine)
E01
E02
E03
E11
E12
E13
Ee (side of right cyl head)
Ef (side of left cyl head)
Eg2
Ene
Engine control module (ecm) (on left front of engine compt, in protective case)
Eor1
Eta
Etha
Ethw
Evg
Evvl
Evvr
G2-
Ge01
Htr
If1l
If1r
If2l
If2r
Ignition coil & igniter 1
Ignition coil & igniter 2
Ignition coil & igniter 3
Ignition coil & igniter 4
Ignition coil & igniter 5
Ignition coil & igniter 6
Ignition coil & igniter 7
Ignition coil & igniter 8
Igt1
Igt2
Igt3
Igt4
Igt5
Igt6
Igt7
Igt8
Lcki
Left camshaft timing oil control valve (on front of left cyl head)
Left vvt sensor (on left side of engine)
Me01
Mops
Ne+
Ne-
Ocr+
Ocr-
Ocv+
Ocv-
Oil pressure switch (on lower left front of engine)
Oxr1
Prg
Red
Right camshaft timing oil control valve (on front of right cyl head)
Right vvt sensor (on right side of engine)
Tha
Throttle control motor (on front of of engine, on throttle body)
Throttle position sensor (on throttle body)
Thw
Vta
Vta2
Vvl+
Vvl-
Vvr+
Vvr-

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Lexus LS 430 2002

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List of elements for Back-up Lamps Wiring Diagram for Lexus LS 430 2002:

(behind left side of dash) gateway ecu
A/c control assembly (behind right side of dash)
Back-up light
Backup light switch (park/neutral position switch)
Bck1
Bk/up
Center cluster integration panel
Engine control module (on left front of eng compt)
Engine room j/b 1 (on left front of eng compt, behind headlight)
Fr ig fuse 7.5a
Fusible link block
Hot at all times
J/c 1, j/c 2 (near ecm in protective case)
J/c 23 (rearward of left rear fenderwell)
J/c 24, j/c 25 (left rear of luggage compt)
J24
J25
L12
L14
Left rear combination light
Lug j/b fuse 50a
Luggage room j/b (on left side of luggage compartment)
Luggage room j/b ecu
Mpx+
Mpx-
Mpx2
Red
Right rear combination light
W/ navigation
W/o navigation

Exterior Lamps Wiring Diagram (1 of 2) for Lexus LS 430 2002

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List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Lexus LS 430 2002:

Bubs
C12
Combination meter
Cpu
Dome fuse 10a
Driver side j/b (at left kick panel)
E13
E16
F15
Fuse link block
Gateway ecu (behind left side of dash)
Gauge fuse 7.5a
High mounted stop light
Hot at all times
Hot in run
Ii (right side side panel)
J/c 10, j/c 12 (behind upper center of dash)
J/c 16, j/c 17 (behind upper center of dash)
J/c 23 (rearward of left rear fenderwell)
J/c 24, j/c 25 (left rear of luggage compt)
J10
J12
J16
J17
J24
J24 c
J24 f
J25
J25 b
L12
L13
L14
Lce lp fuse 7.5a
Lce1
Left
Left rear combination light
License plate lights
Lug j/b fuse 50a
Luggage room j/b ecu (left side of luggage compartment)
Mpi2
Mpl1
Mpx+
Mpx-
Mpx-b2 fuse 7.5a
P-grd
Passenger side j/b (at right kick panel)
Red
Right
Right rear combination light
Stop light
Stop1
Stop2
Stp1
Stp2
Stp3
Tail lights
Tail1
Tail2
Til1
Til2
Til3
Til4
Turn signal light
Turn signal light

Exterior Lamps Wiring Diagram (2 of 2) for Lexus LS 430 2002

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List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Lexus LS 430 2002:

(left side of dash) ig
(w/ navigation)
(w/ navigation) (w/o navigation)
(w/o navigation)
Bu+
Bu-
C12
C14
Combination meter
Combination switch
Cral
Crar
Driver side j/b (at left kick panel)
Driver side j/b ecu
E13
E18
Ea (right radiator side support)
Ec (left radiator side support)
Engine room 2 r/b (left front of engine compt, behind headlight)
Engine room j/b 1 (on left front of engine compt, behind headlight)
F11
Front controller
Ftal
Haz
Haz fuse 15a
Hazard switch
Hot at all times
Hot in run
Ih (right side of shift lever)
Ii (right side of shift lever)
J/c 13, j/c 14, j/c 15 (behind upper center of dash)
J13
J14
J15
Left front parking light
Left front side marker light
Left front turn signal light
Left signal ind
Mpx-b3 fuse 7.5a
Mpx-ig fuse 7.5a
Mpx1
Mpx2
Passenger side j/b (at right kick panel)
Power tilt and power telescopic ecu (behind left side of dash)
Red
Right front parking light
Right front side marker light
Right front turn signal light
Right turn signal ind
Sidl
Sidr
Tail fuse 7.5a
Turn lh
Turn rh
Tx1
W/ compass
W/o compass

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 5) for Lexus LS 430 2002

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List of elements for Ground Distribution Wiring Diagram (1 of 5) for Lexus LS 430 2002:

(on left front of engine compartment, behind headlight) engine room 1 r/b
(on left rear of engine compartment) engine room 3 r/b
(on right rear of engine compartment) fusible link block
Abs & & trac & vsc actuator
Abs motor relay
Blower motor
Brake fluid level warning switch
Cooling fan ecu
E1 (engine harn, left front of engine compt, near protective case)
E4 (engine harn, behind right headlight)
E5 (engine harn, right side of engine compt)
E6 (engine harn, behind left headlight)
Ea (right radiator side support)
Eb (under fusible link block)
Ec (left radiator side support)
Ed (left firewall, top side)
Efi main relay
Engine control module
Engine hood courtesy switch
Exhaust gas sensor
Fan relay
Front height control valve
Front wiper motor
Gnd1
Gnd2
Gnd3
Gnd4
Headlight cleaner control relay
Headlight cleaner motor
Height control compressor
Height control exhaust valve
Ig1 relay
Ig2 relay
J/c 3 (near engine control module in protective case)
J/c 7 (below engine room 1 j/b & engine room 1 r/b)
Left front fog light
Left front parking light
Left front side marker light
Left front suspension control actuator
Left front turn signal light
Left headlight (high beam)
Left headlight control ecu
Right front fog light
Right front parking light
Right front side marker light
Right front suspension control actuator
Right front turn signal light
Right headlight (high beam)
Right headlight control ecu
S10
S13
Skid control ecu
Washer level sensor
Washer motor

Ground Distribution Wiring Diagram (2 of 5) for Lexus LS 430 2002

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List of elements for Ground Distribution Wiring Diagram (2 of 5) for Lexus LS 430 2002:

(dash harn, behind top right of dash) i6
(on left front of engine compt, behind headlight) engine room 2 r/b
A/c magnetic clutch & lock sensor
A24
Airbag sensor assembly
C12
C13
Combination meter
Combination switch
D-acc relay
D-ig1 relay
Data link connector 3
Defog relay
Distance control ecu
Driver side j/b (at left kick panel)
Driver side j/b ecu
E12
E12 (engine harn, top rear of engine)
E13
E13 (engine harn, top left side of engine)
E19
E20
Ee (side of right cylinder head)
Ef (side of left cylinder head)
Engine control module
Engine oil level sensor
Eo1
Eo2
Eo3
Front controller
Fuel lid opener switch
Gateway ecu
Gnd
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)
Ig (left side of dash)
Ignition coil & ignitor 1
Ignition coil & ignitor 2
Ignition coil & ignitor 3
Ignition coil & ignitor 4
Ignition coil & ignitor 5
Ignition coil & ignitor 6
Ignition coil & ignitor 7
Ignition coil & ignitor 8
Ih (right side of shift lever)
Ij (right dash brace)
J/c 3, j/c 4 (near engine control module in protective case)
J/c 5, j/c 6 (near engine control module in protective case)
J/c 8 (behind left end of dash)
Laser radar sensor
Luggage compartment door opener switch
Me01
Multi- display
Outer mirror switch
Park/ neutral position switch
Power tilt & power telescopic ecu
Radio & player
Rheostat
Sgnd
Sln-
Steering sensor
T15
Telephone transceiver & speaker relay
Theft deterrent ecu
Transponder key computer
Un-
Unlock warning switch

Ground Distribution Wiring Diagram (3 of 5) for Lexus LS 430 2002

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List of elements for Ground Distribution Wiring Diagram (3 of 5) for Lexus LS 430 2002:

(on right rear of engine compt) fusible link block
A/c control assembly
A11
A24
A35
Absorber control switch
Air sus relay
Airbag sensor assembly
B w/o navigation
B1 (roof harn, right front of roof)
C12
C15
Central cluster integration panel
Clock
Combination meter
Console box illumination
Door lock control receiver (inner mirror)
E14
Electronically controlled transmission pattern select switch
F15
Front cigarette lighter
Glove box light 1
Glove box light 2
Gnd
Gnd3
Hazard switch
Headlight beam level control ecu
Height control switch
I4 (dash harn, behind center of dash)
I6 (dash harn, behind top right of dash)
Ii (right side of shift lever)
Ik (right dash side panel)
Left rear interior light
Left vanity light
Moon roof control ecu
Overhead j/b
P-acc relay
P-ig1 relay
Passenger side j/b (at right kick panel)
Passenger side j/b ecu
Power outlet
Right front buckle switch
Right rear interior light
Right vanity light
Shift lock control ecu
Short connector (height control)
T15
Telephone transceiver & speaker relay
Traction control switch, left seat heater switch, right seat heater switch, left climate control seat switch, right climate control seat switch, headlight cleaner switch, rear sunshade switch, rear seat reset switch
W/ navigation a

Ground Distribution Wiring Diagram (4 of 5) for Lexus LS 430 2002

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List of elements for Ground Distribution Wiring Diagram (4 of 5) for Lexus LS 430 2002:

(seat harn, under driver's seat) b5
A35
Audio & rear a/c control switch
B6 (seat harn, under driver's seat)
B8 (seat harn, in left rear seat back)
Bp (left rear passenger seat back)
Clearance sonar ecu
Climate control seat ecu (driver's seat)
D25
D27
D28
Door lock switch (luggage)
Driver door ecu
Driver seat ecu
Fuel lid opener motor
Fuel pump
Gnd
High mounted stop light
J/c 21 (forward of left rear fenderwell)
J/c 23 (rearward of left rear fenderwell)
J/c 24, j/c 25 (on left rear of luggage compt)
J/c 31 (behind left rear seat back)
L14
Left front buckle switch
Left front seat heater
Left rear buckle switch
Left rear combin- ation light
Left rear door ecu
Left rear head rest limit switch
Left rear seat ecu
Left rear seat heater
Left rear suspension control actuator
Left vibration seat ecu
Luggage compartment door closer motor
Luggage compartment door key unlock switch
Luggage room j/b (on left side of luggage compt)
Luggage room j/b ecu
Noise filter
Power seat control switch (driver's seat cushion)
Power seat control switch (driver's seat lumbar support)
Power seat motor & position sensor (rear passenger's left seat head rest top & bottom control)
Power seat position sensor (driver's seat cushion control)
Power seat position sensor (driver's seat front vertical control)
Power seat position sensor (driver's seat head rest control)
Power seat position sensor (driver's seat reclining control)
Power seat position sensor (driver's seat seat lifter control)
Power seat position sensor (driver's seat slide control)
Power seat position sensor (rear passenger's left seat slide control)
R13
Rear a/c unit
Rear height control valve
Rear seat control switch
Rear sunshade control relay
Right rear combin- ation light
Sgnd
W/ rear power seat

Ground Distribution Wiring Diagram (5 of 5) for Lexus LS 430 2002

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List of elements for Ground Distribution Wiring Diagram (5 of 5) for Lexus LS 430 2002:

A22
A35
Air suspension ecu
Audio & rear a/c control switch
B10
B11
B11 (seat harn, in right rear seat back)
B3 (body harn, right front luggage compt)
B7 (seat harn, under passenger's seat)
Bq (right rear passenger seat back)
Climate control seat ecu (front passenger's seat)
F17
Front passenger door ecu
Gnd
Ill-
Ir (under front passenger's seat)
J/c 27 (forward of right rear fenderwell)
J/c 28, j/c 29 (rearward of right rear fenderwell)
J/c 30 (rearward of right rear fenderwell)
Left rear seat heater
Navigation ecu
Power seat control switch (front passenger's seat lumbar support)
Power seat control switch (front passenger's seat)
Power seat motor & position sensor (right rear passenger's seat & head rest top & bottom control)
Power seat position sensor (right rear passenger's seat slide control)
R14
R23
Rear cigarette lighter
Rear window defogger
Right front seat heater
Right rear buckle switch
Right rear door ecu
Right rear head rest limit switch
Right rear pad wear indicator switch (right rear abs speed sensor)
Right rear seat ecu
Right rear seat heater
Right rear suspension control actuator
Right vibration seat ecu
S30
Sel1
Sel2
Sgnd
Stereo component amplifier
Stereo component tuner
T15
Telephone transceiver & speaker relay
W/ rear power seat
W/o rear power seat
W/rear power seat

HEADLIGHTS

Headlamps Wiring Diagram (1 of 2) for Lexus LS 430 2002

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List of elements for Headlamps Wiring Diagram (1 of 2) for Lexus LS 430 2002:

(inner mirror) door lock control receiver
(left radiator side support) ec
Automatic light control sensor (behind upper center of dash)
B17
B23
Brake fluid level warning switch (on brake master cylinder reservoir)
Bu+
Bu-
Bubs
Cltb
Clte
Clts
Combination switch
Computer data lines system
Cty
Data
Driver door ecu (inside front of left front door)
Driver side j/b (at left kick panel)
Driver side j/b ecu
E14
F11
Gnd
Head
Hot at all times
Hot in run or start
Hrly
I14
Ig (left side of dash)
Ii (right side of shift lever)
J/c 13 (behind upper center of dash)
J/c 14 & 15 (behind upper center j15 of dash)
J/c 7 (below engine room 1 j/b)
J14
L14
Left front door courtesy switch
Luggage room j/b ecu (on left side of luggage compartment)
Mpx+
Mpx-
Mpx-b
Mpx-b3 fuse 7.5a
Mpx-ig
Mpx-ig fuse 7.5a
Mpx1
Mpx2
Parking brake switch (behind left side of dash)
Passenger side j/b (at right kick panel)
Pkb
Power tilt and power telescopic ecu (behind left side of dash)
Rco
Rda
Red
Rssi
S10
S11
S12
Skid control ecu (behind left side of dash)
Theft deterrent ecu (behind upper right center of dash)
Transponder key computer (behind upper center of dash)
Tx1

Headlamps Wiring Diagram (2 of 2) for Lexus LS 430 2002

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List of elements for Headlamps Wiring Diagram (2 of 2) for Lexus LS 430 2002:

(door courtesy switches)
(on left front of engine compt, behind headlight) engine room r/b 1
Combination meter
Computer data lines system
Cpu
Dome fuse 10a
Driver side j/b (at left kick panel)
E10
E13
E16
Ea (right radiator side support)
Ec (left radiator side support)
Engine room j/b 1
Engine room j/b 1 (on left front of engine compt, behind headlight)
Engine room r/b 1
Engine room r/b 2 (on left front of engine compt, behind headlight)
F15
Ffog
Fhhl
Fogl
Fogr
Fr fog fuse 15a
Front controller
Gateway ecu (behind left side of dash)
Gauge fuse 7.5a
H-lp hi fuse 20a
H-lp l lwr fuse 15a
H-lp r lwr fuse 15a
Head lp relay
Headlight control ecu
Hlhl
Hlhr
Hot at all times
Hot in run
Ii (right side side panel)
J/c 10, j/c 12 (behind upper center of dash)
J/c 16, j/c 17 (behind upper center of dash)
J10
J12
J16
J17
Left front fog light
Left high beam headlight
Main fusible link 14-ga
Mpd1
Mpd2
Mpi1
Mpi2
Mpl1
Mpl2
Mpx-b2 fuse 7.5a
Mpx1
Mpx2
Passenger side j/b (at right kick panel)
Red
Right front fog light
Right high beam headlight

Headlamps Leveling Wiring Diagram, with Air Suspension for Lexus LS 430 2002

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List of elements for Headlamps Leveling Wiring Diagram, with Air Suspension for Lexus LS 430 2002:

A20
A21
Air suspension ecu (behind right side of dash)
C17
Chg-
Combination meter
Combination switch
Computer data lines system
Cpu
Dome fuse 10a
Driver side j/b (at left kick panel)
Driver side j/b ecu (at left kick panel)
E10
E13
E16
Engine room r/b 2 (on left front of engine compt, behind headlight)
F15
Flo
Fro2
Front controller
Gateway ecu (behind left side of dash)
Gauge fuse 7.5a
H-lp lvl fuse 5a
Head
Headlight beam level control ecu (behind right side of dash)
Hot at all times
Hot in run
Hot in run or start
Ig (left side of dash)
Ii (right side side panel)
Ik (right side of shift lever)
J/c 10, j/c 12 (behind upper center of dash)
J/c 16, j/c 17 (behind upper center of dash)
J10
J12
J16
J17
Left headlight beam level control actuator (left headlight assembly)
Left height control sensor (inside left front wheelwell)
Lh+
Lh-
Lhe
Lhg
Lht
Mpi2
Mpl2
Mpx-b2 fuse 7.5a
Mpx1
Mpx2
Passenger side j/b (at right kick panel)
Passenger side j/b ecu (at right kick panel)
Pnk
Rear height control sensor (under center rear of vehicle)
Red
Rh+
Rh-
Rhe
Rhg
Rht
Right headlight beam level control actuator (right headlight assembly)
S10
S12
S13
Sbf
Sbl1
Sbl2
Sbl3
Sgf
Sgl1
Sgl2
Sgl3
Shf2
Shfl
Shr2
Shrl
Skid control ecu (behind left side of dash)
Spdl
Spdr
Wng

Headlamps Leveling Wiring Diagram, without Air Suspension for Lexus LS 430 2002

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List of elements for Headlamps Leveling Wiring Diagram, without Air Suspension for Lexus LS 430 2002:

(right side of shift lever)
Chg-
Combination meter
Combination switch
Computer data lines system
Cpu
Dome fuse 10a
Driver side j/b (at left kick panel)
Driver side j/b ecu (at left kick panel)
E10
E13
E16
Engine room r/b 2 (on left front of engine compt, behind headlight)
F15
Flo
Fro2
Front controller
Gateway ecu (behind left side of dash)
Gauge fuse 7.5a
H-lp lvl fuse 5a
Head
Headlight beam level control ecu (behind right side of dash)
Hot at all times
Hot in run
Hot in run or start
Ig (left side of dash)
Ii (right side side panel)
J/c 10, j/c 12 (behind upper center of dash)
J/c 16, j/c 17 (behind upper center of dash)
J/c 19, j/c 20 (behind upper right side of dash)
J10
J12
J16
J17
Left headlight beam level control actuator (left headlight assembly)
Left height control sensor (inside left front wheelwell)
Lh+
Lh-
Lhe
Lhg
Lht
Mpi2
Mpl2
Mpx-b2 fuse 7.5a
Mpx1
Mpx2
Passenger side j/b (at right kick panel)
Passenger side j/b ecu (at right kick panel)
Pnk
Rear height control sensor (under center rear of vehicle)
Red
Rh+
Rh-
Rhe
Rhg
Rht
Right headlight beam level control actuator (right headlight assembly)
S10
S12
S13
Sbf
Sgf
Shfl
Shrl
Skid control ecu (behind left side of dash)
Spdl
Spdr
Wng

HORN

Horn Wiring Diagram for Lexus LS 430 2002

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List of elements for Horn Wiring Diagram for Lexus LS 430 2002:

Driver side j/b (at left kick panel)
Driver side j/b ecu (at left kick panel)
Engine room 1 r/b (on left front of engine compt, behind headlight)
Engine room 2 r/b (on left front of engine compt, behind headlight)
F15
Fhor
Front controller
Horh
Horl
Horn (high)
Horn (low)
Horn fuse 10a
Horn switch (combination switch)
Hot at all times
Mpx
Mpx1
Mpx2
Mpx3
Security fuse 7.5a

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for Lexus LS 430 2002

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List of elements for Instrument Cluster Wiring Diagram for Lexus LS 430 2002:

(below left side of dash)
(lower left front of engine) engine oil pressure switch
(w/ navigation)
(w/o navigation)
A/b
A/t 2 ind
A/t 3 ind
A/t 4 ind
A/t d ind
A/t l ind
A/t n ind
A/t p ind
A/t r ind
A21
Abs ind
Air suspension ecu (behind right side of dash)
Beam ind
Brake fluid level warning switch (on master cylinder)
Brake ind
C14
Chg- ind
Chk
Clock
Combination meter
Computer data lines system
Cpu
Cruise ind
Data
Display multi
Dome fuse 10a
Door ind
Driver side junction block (behind left kick panel)
E13
E14
E16
Ec (left radiator side support)
Ef (side of left cylinder head)
Electronic suspension system
Engine control module (left front of engine compt)
Engine control system
Engine oil level sensor
Exterior lights system
F15
Fe2
Fr2
Front fog ind
Fsme
Fsms
Fsmv
Fsse
Fsss
Fssv
Fuel
Fuel gauge
Fuel sender (main) (under left rear of vehicle)
Fuel sender (sub) (under right rear of vehicle)
Fv2
Gauge fuse 7.5a
Head (usa) tail (canada)
Hot at all times
Hot in run or start
I20
Ih (right side of shift lever)
Ii (right side of shift lever)
Ill-
Interior lights system
J/c 10 (behind upper center of dash)
J/c 12 (behind upper center of dash)
J/c 16, j/c 17 (behind upper center of dash)
J/c 30 (rearward of right rear fenderwell)
J/c 4
J/c 7
J/c16
J/c16, j/c 17 (behind upper center of dash)
J/c17
J16
J17
L13
L14
Lbl-
Link conn
Luggage room j/b ecu (left side of luggage compt)
Master ind
Mil ind
Mol
Mops
Mpx+
Mpx-
Mpx-b2 fuse 7.5a
Mpx1
Mpx2
Mulit-display
Navigation, sound systems
Num
Pad wear indicator switch (right front)
Pad wear indicator switch (right rear)
Parking brake switch (left side of dash, on parking brake)
Passenger side j/b (right kick panel)
Passenger side j/b ecu (right kick panel)
Passenger side junction block (behind right kick panel)
Pbew
Pblt
Pind
Pkb
Pwr ind
Red
Rset
S10
S11
S12
Seat belt ind
Skid control ecu (behind left side of dash)
Slip ind
Snow ind
Speedometer
Srs ind
Tach
Tachometer
Tems
Tms sport ind
Trip odo/
Trip switch
Turn lh ind
Turn rh ind
Vsc off
Water temp gauge

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for Lexus LS 430 2002

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List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Lexus LS 430 2002:

(behind upper center of dash) j/c 12
(right dash side panel) ik
(right front of headliner) b1
(right side of roof)
(right side of shift lever)
(right side of shift lever) ii
+b1
+b2
A/c control assembly
A11
Airbag
Airbag sensor assembly (behind lower center of dash)
C12
Center cluster integration panel
Combination meter
Cspt
Cty
Dome fuse 10a
Door
Driver side j/b (left kick panel)
E13
E16
Engine control module (left front of engine compt)
F13
F15
Fspt
Gauge fuse 7.5a
Gnd
Gnd1
Gnd3
Hot at all times
Hot in run or start
Ignition key cylinder light
Ih (right side of shift lever)
Ii (right side of shift lever)
Ile
J/c 10
J/c 10, j/c 11 (behind upper center of dash)
J/c 11
J/c 16, j/c 17 (behind upper center of dash)
Lcty
Led
Left rear interior light
Left step light
Left vanity light
Mpx+
Mpx-
Mpx-b
Mpx-b2 fuse 7.5a
Mpx1
Mpx2
Overhead j/b (at front of roof opening)
Passenger side j/b (right kick panel)
Passenger side j/b ecu
Rcty
Red
Right rear interior light
Right step light
Right vanity light
Security fuse 7.5a
Skid control ecu (behind left side of dash)
W/ nav
W/o nav

Courtesy Lamps Wiring Diagram (2 of 2) for Lexus LS 430 2002

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List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Lexus LS 430 2002:

(rearward of left rear fenderwell) j/c 23
Bdcy
Bdr
Cty
Ctyb
Cyl
D door fuse 25a
D25
Data
Door lock control receiver
Door rr lh fuse 20a
Door rr rh fuse 20a
Driver door ecu (in door)
Driver side j/b (left kick panel)
E11
F17
G10
Gateway ecu (behind left end of dash)
Gnd
Hot at all times
Htr-
I14
J/c 21 (forward of left rear fender- well)
J/c 27 (rearward of right rear fender- well)
J10
L12
L14
Left front door courtesy light
Left front door courtesy switch
Left rear door courtesy light
Left rear door courtesy switch
Left rear door ecu (in door)
Left side outer rear view mirror
Lgcy
Lglp
Luggage compartment light 1
Luggage compartment light 2
Luggage door lock switch
Luggage room j/b (left side of luggage compt)
Luggage room j/b ecu
Mpd1
Mpd2
Mpi1
Mpi2
Mpl1
Mpx-
Mpx1
Mpx2
Nca
P door fuse 25a
P-gnd
Passenger door ecu (in door)
Passenger side j/b (right kick panel)
R14
Rc0
Rda
Red
Right front door courtesy light
Right front door courtesy switch
Right rear door courtesy light
Right rear door courtesy switch
Right rear door ecu (in door)
Right side outer rear view mirror
Rr ecu-b fuse 7.5a
Rssi
Theft deterrent ecu (behind right center of dash)
Transponder key computer (behind right center of dash)

Instrument Illumination Wiring Diagram (1 of 2) for Lexus LS 430 2002

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List of elements for Instrument Illumination Wiring Diagram (1 of 2) for Lexus LS 430 2002:

(left side of dash) ig
Ash+
Ash-
Ashtray illumination
Bdr
C12
Clearance sonar switch
Coin box illumi- nation
Combination meter
Combination switch
Computer data lines
D door fuse 25a
D24
D25
Driver door ecu (in door)
Driver side j/b (left kick panel)
Driver side j/b ecu
Driving position memory switch
E15
F10
F11
F16
F17
G10
Gnd
Hot at all times
Hot in run or start
I18
Inside handle illumination
J/c 13 (behind center of dash)
J/c 14, j/c 15 (behind center of dash)
J/c 21 (forward of left rear fender- well)
J/c 22 (rearward of left rear fenderwell)
J/c 23 (rearward of left rear fenderwall)
J/c 27 (foreward) of right rear fender- well)
J10
Led+
Led-
Left rear door ecu (in door)
Left rear seat memory switch
Mpx-b3 fuse 7.5a
Mpx-ig fuse 7.5a
Mpx1
Mpx2
P door fuse 25a
Panel fuse 7.5a
Panel1
Panel2
Passenger door ecu (in door)
Passenger side j/b (right kick panel)
R12
R13
R14
R15
Rear seat control switch
Red
Remote control mirror switch
Rheostat
Right rear door ecu (in door)
Rr door lh fuse 20a
Rr door rh fuse 20a
Sw1
Sw2
Sw3
Tr+
Tr1
Tr2
Tr3

Instrument Illumination Wiring Diagram (2 of 2) for Lexus LS 430 2002

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List of elements for Instrument Illumination Wiring Diagram (2 of 2) for Lexus LS 430 2002:

(at right kick panel) passenger side j/b
(behind center of dash) j/c 12, j/c 13
(dash harn, behind top right side of dash) i6
(dash harn, below center console) i5
(rearward of right rear fenderwell) j/c 28, j/c 29
(right dash side panel) ik
(w/o nav) (w/ nav)
A j16
A/t shift lever illumination
Absorber control switch (w/ electronic suspension)
Audio & rear a/c control switch
B j12
Center cluster integration panel (w/o navigation)
Cigarette lighter (front)
Cigarette lighter (rear)
Clock (w/o navigation)
Console box illumination
D j13
D j28
D j29
Driver's a/c room temperature switch
E j17
E j28
Electronically controlled transmission pattern select switch
Fuel lid opener switch
Glove box light 1
Glove box light 2
Hazard switch
Height control switch (w/ electronic suspension)
I16
Ii (right side of shift lever)
J/c 16, j/c 17 (behind center of dash)
J/c 27 (foreward of right rear fenderwell)
J29 e
Mirror switch
Multi-display (w/ navigation)
Overhead j/b (w/ garage door opener)
Passenger's a/c room temperature switch
Radio & player
Right rear seat memory switch
Traction control switch, seat heater switches, climate control seat switches, headlight cleaner switch, rear sunshade switch, rear seat reset switch

MEMORY SYSTEMS

Driver's Memory Seat Wiring Diagram for Lexus LS 430 2002

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List of elements for Driver's Memory Seat Wiring Diagram for Lexus LS 430 2002:

(body harn, under driver's seat)
C20
Climate control seat ecu (driver) (under left front seat)
Computer data lines system
Csnf
Csnr
D p/seat fuse 7.5a
D24
D25
D27
D28
Down
Driver door ecu (inside front of left front door)
Driver seat ecu (below left side of driver's seat)
Driver side j/b (at left kick panel)
Driver's seat cushion position sensor
Driver's seat cushion power seat motor
Driver's seat front vertical position sensor
Driver's seat front vertical power seat motor
Driver's seat head rest power seat motor & position sensor
Driver's seat lifter position sensor
Driver's seat lifter 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
Frv+
Frv-
Gnd
Hot at all times
Hot in on or start
I14
I17
Idl
J/c 10 (behind upper center of dash)
J/c 21 (forward of left rear fender- well)
J/c 21 (forward of left rear fenderwell)
J10
Memory seat switch
Mmry
Mpx-b1 fuse 7.5a
Mpx-ig fuse 7.5a
Mpx1
Mswe
O/p
P22
Passenger side j/b (at right kick panel)
Pnk
Power seat control switch (driver's seat cushion)
Power seat control switch (driver's seat lumbar support)
Power seat motor (driver's seat lumbar support lower side control)
Power seat motor (driver's seat lumbar support upper side control)
Pvcc
Rcl+
Rcl-
Red
Rrv+
Rrv-
Sgnd
Sld+
Sld-
Ssfv
Ssrc
Ssrh
Ssrr
Ssrs
Ssrv
Sysb
Vcc

Memory Mirrors Wiring Diagram for Lexus LS 430 2002

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List of elements for Memory Mirrors Wiring Diagram for Lexus LS 430 2002:

(forward of left rear wheelwell)
Bdr
C10
Computer data lines system
Cpub
D door fuse 25a
D24
D25
Data
Dle
Door lock control receiver (inner mirror)
Driver door ecu (inside front of left front door)
Driver side j/b (at left kick panel)
Driver side j/b ecu (at left kick panel)
Driving position memory switch
Engine control module (on left front of engine compartment, in protective case)
Engine controls system (park/neutral position switch)
F11
F16
F17
Front passenger door ecu (inside right front door)
Gnd
Hot at all times
Hssr
I15
Ig (left side of dash)
Ii (right side of shift lever)
J/c 10, j/c 11 (behind upper center of dash)
J/c 12, j/c 13 (behind upper center of dash)
J/c 14, j/c 15 (behind upper center of dash)
J/c 21
J/c 27 (forward of right rear fenderwell)
J10
J11
J12
J13
J14
J15
Left front door lock control switch (power window master switch)
Left outside rear view mirror
Left/right motor
M+r
Mhr
Mind
Mmry
Mpx-b
Mpx-b1 fuse 7.5a
Mpx-b3 fuse 7.5a
Mpx-ig
Mpx-ig fuse 7.5a
Mpx1
Mpx2
Mr+
Mr-
Msw
Mswe
Mul
Mvr
Outer mirror switch
Passenger side j/b (at right kick panel)
Pnk
Pwe
Rco
Rda
Red
Ret
Retractable motor
Right front door lock control switch
Right outside rear view mirror
Rssi
Rtr
Sensor
Sig
Theft deterrent ecu (behind upper right center of dash)
Up/down motor
Vssr

Memory Power Tilt & Power Telescopic Wiring Diagram for Lexus LS 430 2002

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List of elements for Memory Power Tilt & Power Telescopic Wiring Diagram for Lexus LS 430 2002:

(behind left end of dash
Com1
Com2
Computer data lines system
D24
D25
Driver door ecu (inside front of left front door)
Driver side j/b (at left kick panel)
Driving position memory switch
Ecub
F/b1
F/b2
F11
G10
Gnd
Hot at all times
Hot in on or start
I14
Ig (left side of dash)
Ih (right side of shift lever)
J/c 13 (behind upper center of dash)
J/c 14, j/c 15 (behind upper center of dash)
J/c 9
J14
J15
Ksw
Mmry
Mpx-b3 fuse 7.5a
Mpx-ig fuse 7.5a
Mpx1
Mpx2
Mswe
Nca
Passenger side j/b (at right kick panel)
Pnk
Power tilt & power telescopic ecu (behind left side of dash)
Red
S5v1
S5v2
Sg1
Sg2
Sin1
Sin2
Telescopic motor & position sensor
Ti & te fuse 20a
Tilt motor & position sensor
Transponder key computer (behind upper center of dash)
Unlock warning switch

Memory Rear Seat Wiring Diagram for Lexus LS 430 2002

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List of elements for Memory Rear Seat Wiring Diagram for Lexus LS 430 2002:

(behind upper center of dash) j/c 10, j/c 11
(left rear passenger seat back)
(right rear passenger seat back)
B10
Bm (rearward of left rear fenderwell)
Can
Computer data lines system
Cty
Down
Driver side j/b (at left kick panel)
G201 (right dash side panel)
Gnd
Hdwn
Hot at all times
Hrsw
Hup
I20
I21
Ind
J/c
J/c 27 (forward of right rear fenderwell)
J/c 30 (rearward of right rear fenderwell)
J/c 31 (behind left rear seat back)
J10
J11
Left rear door courtesy switch
Left rear head rest limit switch
Left rear seat memory switch
Luggage room j/b (on left side of luggage compartment)
Mpx
Mpx-
Mpx-b1 fuse 7.5a
Mpx1
Mpx2
Mswe
Passenger side j/b (at right kick panel)
Passenger side j/b ecu (at right kick panel)
Pcv2
Power seat motor & position sensor (left rear passenger's seat head rest top & bottom control)
Power seat motor & position sensor (right rear passenger's seat head rest top & bottom control)
Power seat motor (left rear passenger's seat slide control)
Power seat motor (right rear passenger's seat slide control)
Power seat position sensor (left rear passenger's seat slide control)
Power seat position sensor (right rear passenger's seat slide control)
Pvcc
R12
R13
R14
R15
Rear door ecu (left) (inside left rear door)
Rear door ecu (right) (inside right rear door)
Rear seat control switch
Rear seat ecu (left) (behind left rear seat back)
Rear seat ecu (right) (behind right rear seat back)
Rear seat reset switch (under front of center floor console)
Red
Right rear door courtesy switch
Right rear head rest limit switch
Right rear seat memory switch
Rr seat lh fuse 30a
Rr seat rh fuse 30a
Rrsw
Sel
Set
Sgnd
Sld+
Sld-
Ssrh
Ssrs
Ssrv
Sysb

NAVIGATION

Navigation Wiring Diagram for Lexus LS 430 2002

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List of elements for Navigation Wiring Diagram for Lexus LS 430 2002:

+b1
A10
A11
A12
A13
A14
A15
A16
A17
A18
Acc
Aui+
Aui-
Auo+
Auo-
B10
B11
B12
B13
B14
Braided
C10
C12
Combination meter
Computer data lines system
Crt fuse 7.5a
Driver side j/b at left kick panel)
E16
E17
Fl-
Gnd
Gnd1
Hot at all times
Hot in acc or run
Hot in start or run
Hot with l-acc realay energized
Ij (right dash brace)
J/c 14 & j/c 15 (behind upper center of dash)
J/c 28 (rearward of right rear fenderwell)
J/c 30 (rearward of right rear fenderwell)
J14
J15
Left front door speaker
Luggage room j/b (left side of luggage compt)
Macc
Mcmv
Mco+
Mco-
Mi1+
Multi-display
N-mu
Navigation ecu (on lower right side of luggage compt)
Nvmu
Panel fuse 7.5a
Parking brake switch
Passenger side j/b (at right kick panel)
Passenger side j/b ecu (at right kick panel)
Pbew
Pg-i fuse 7.5a
Pkb
Pnk
Red
Rev
Rr acc fuse 7.5a
S29
S30
Sgnd
Snse
Sound system
Spd
Spdo
Stereo component amplifier (right side of luggage compt, behind trim)
Sync
T14
Tel fuse 7.5a
Telephone transceiver & speaker relay (right side of luggage compt)
Tx+
Tx-

Parking Assistant Wiring Diagram for Lexus LS 430 2002

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List of elements for Parking Assistant Wiring Diagram for Lexus LS 430 2002:

(rear harness, behind left front bumper)
B4 (rear harness, behind center of rear bumper)
Clearance sonar ecu (on left side of luggage compt)
Clearance sonar switch
Clearance warning sonar buzzer (front) (behind left side of dash)
Clearance warning sonar buzzer (rear) (near center of rear speaker shelf)
Clsw
Computer data lines system
Driver side j/b (at left kick panel)
E11
E13
Fbz
Fbz+
Fcl
Fcr
Fgnd
Fls
Frs
Gauge fuse 7.5a
Hot in on or start
Hot with l-ig1 realay energized
J/c 23 (rearward of left rear fenderwell)
Luggage room j/b (left side of luggage compt)
Mgnd
Rbl
Rbr
Rbz
Rbz+
Red
Rgnd
Rr ig fuse 7.5a
Ultrasonic sensor (front left center)
Ultrasonic sensor (front left side)
Ultrasonic sensor (front left)
Ultrasonic sensor (front right center)
Ultrasonic sensor (front right side)
Ultrasonic sensor (front right)
Ultrasonic sensor (rear left center)
Ultrasonic sensor (rear left)
Ultrasonic sensor (rear right center)
Ultrasonic sensor (rear right)

PASSIVE RESTRAINTS

Electric Tension Reducer Wiring Diagram for Lexus LS 430 2002

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List of elements for Electric Tension Reducer Wiring Diagram for Lexus LS 430 2002:

A24
A25
Air bag sensor assembly (on transmission tunnel)
Driver side j/b (behind left kick panel)
Driver side j/b ecu (behind left kick panel)
Gauge fuse 7.5a
Hot in run or start
Ik (right dash side panel)
J/c 14 (behind upper center of dash)
J/c 23 (rearward of left rear fenderwell)
Left buckle switch (in buckle)
Left tension reducer solenoid (base of left "b" pillar)
P-ig fuse 7.5a
Passenger side j/b (behind right kick panel)
Passenger side j/b ecu (behind right kick panel)
Right buckle switch (in buckle)
Right tension reducer solenoid (base of right "b" pillar)

Power Shoulder Belt Anchorage Wiring Diagram for Lexus LS 430 2002

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List of elements for Power Shoulder Belt Anchorage Wiring Diagram for Lexus LS 430 2002:

B/anc
Bdr
Bn (right rear floor partition panel)
Computer data lines system
Cpub
F16
F17
Front passenger door ecu (in right fornt door)
Gnd
Gnd1
Hot at all times
Ii (right side of shift lever)
Ik (right dash side panel)
J/c 27 (forward of right rear fenderwell)
J10
Mpx-b1 fuse 7.5a
Mpx2
Mxp-
P b/anc fuse 5a
P door fuse 25a
Passenger side j/b (right kick panel)
Passenger side j/b ecu
Pbm+
Pbm-
Psdn
Pse
Psup
Red
Shoulder belt adjust switch (right) (on right front door)
Shoulder belt anchor motor (right) (near middle of right "b" pillar)

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 5) for Lexus LS 430 2002

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List of elements for Power Distribution Wiring Diagram (1 of 5) for Lexus LS 430 2002:

(at right kick panel) passenger side j/b
(see headlights system)
Abs 1 fuse 40a
Abs 2 fuse 40a
Air conditioning system
Air conditioning system & body computer system
Air sus fuse 40a
Alt fuse 140a
Alt-s fuse 5a
Am 2 fuse 30a
Anti-lock brake system & cruise control system
Anti-theft system, body computer system & horns system
Anti-theft system, body computer system, door locks system & power windows system
Anti-theft system, body computer system, door locks system, mirrors system, passive restraints system, power windows system & seats system
Battery
Battery fuse 30a
Body computer system
Body computer system & exterior lights system
Body computer system & headlights system systems
Body computer system, exterior lights system, headlights system, instrument cluster system, interior lights system, memory system, mirrors system, trunk, tailgate, fuel doors system & wiper/washer system
C12
C13
Crt fuse 7.5a
Cruise control system
Cruise control system, engine controls system & transmission systems
D-j/b fuse 80a
D/c cut fuse 20a
Defog fuse 40a
Defogger system
E16
Efi 1 fuse 30a
Efi 2 fuse 7.5a
Efi main relay
Electronic suspension system
Engine controls system
Engine room j/b 1 (on left front of engine compt, behind headlight)
Engine room r/b 1
Etcs fuse 10a
Fan fuse 50a
Fan relay
Fl main
From ignition switch (diagram 3 of 5)
Fusible link block
H-lp hi fuse 20a
Haz fuse 15a
Headlamp relay
Heater fuse 50a
Horn fuse 10a
I10
I21
Ig2 fuse 7.5a
Ig2 relay
Lug j/b fuse 50a
Mirrors system & passive restraints system
Mpx-b
Mpx-b1 fuse 7.5a
Mpx-b2 fuse 7.5a
Mpx-b3 fuse 7.5a
Navigation system
Nca
P-j/b fuse 80a
Passenger side j/b ecu
R/b fuse 60a
Radio 1 fuse 7.5a
Red
Seats system
Sound system
Starter
Starting/ charging system
To dome fuse (diagram 2 of 5)
To driver side j/b (d-acc relay) (diagram 4 of 5)
To engine room j/b 1 (r/b 1, h-lp cln fuse, 30a) (diagram 2 of 5)
To engine room j/b 1 (r/b 1, h-lp l lwr, fuse 15a) (diagram 2 of 5)
To engine room j/b 1 (r/b 1, ign fuse, 7.5a) (diagram 2 of 5)
To ignition switch (diagram 3 of 5)
To junction connector j3 (diagram 2 of 5)
To luggage room j/b (diagram 5 of 5)
To passenger side j/b (p door fuse, 25a) (diagram 3 of 5)
W/ compass
W/o compass

Power Distribution Wiring Diagram (2 of 5) for Lexus LS 430 2002

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List of elements for Power Distribution Wiring Diagram (2 of 5) for Lexus LS 430 2002:

(rb 1, ig2 relay) (diagram 1 of 5)
A/c ig fuse 7.5a
Air conditioning system
Air conditioning system, cooling fans system, cruise control system, defogger system, exterior lights system, mirrors system, navigation system, seats system, starting/charging system, transmissions system & wiper/washer system
Anti-theft system, body computer system, exterior lights system & headlights system
Body computer system & headlights system
Body computer system & wiper/ washer system
Body computer system & wiper/washer system
Cruise control system, engine controls system & transmissions system
Dome fuse 10a
E13
Ec (left radiator side support)
Engine controls system & starting/ charging system
Engine room j/b 1
Engine room j/b 1 (on left front of engine compt, behind headlight)
Engine room r/b 1
Engine room r/b 1 (on left front of engine compt, behind headlight)
Fr fog fuse 15a
Fr ig fuse 7.5a
From driver side j/b (d-ig1 relay) (diagram 4 of 5)
From engine room j/b 1 (r/b 1, headlamp relay) (diagram 1 of 5)
From engine room j/b 1 (r/b 1, ig2 relay) (diagram 1 of 5)
From engine room j/b 1 j
From fr fog fuse (diagram 2 of 5)
From fusible link block (r/b fuse, 60a) (diagram 1 of 5)
From passenger side j/b (mpx-b1 fuse, 7.5a) (diagram 1 of 5)
H-lp cln fuse 30a
H-lp l lwr fuse 15a
H-lp r lwr fuse 15a
Ig1 relay
Ign fuse 7.5a
Inj fuse 10a
J/c 3 (near engine control module, in protective case)
J/c 7 (below engine room room j/b 1 & engine room r/b 1)
Passenger side j/b (at right kick panel)
Red
Tail fuse 7.5a
To ig1 relay (diagram 2 of 5)
Washer fuse 20a
Wip fuse 30a
Wiper/ washer system

Power Distribution Wiring Diagram (3 of 5) for Lexus LS 430 2002

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List of elements for Power Distribution Wiring Diagram (3 of 5) for Lexus LS 430 2002:

20a
Acc
Air conditioning system, body computer system, instrument cluster system, mirrors system, navigation system, power tops system, seats system, warning system & wiper/washer system
Air conditioning system, instrument cluster system, navigation system & sound system
Am1
Am2
Anti-theft system, body computer system, door locks system, interior lights system, mirrors system, passive restraints system & power tops system
B/anc
C17
D door fuse 25a
Door lock system interior light system anti-theft system power window system
E17
Engine controls system, starting/ charging system & transmissions system
Engine room j/b 1 (on left front of engine compt, behind headlight)
Engine room r/b 1
F11
From driver side j/b (am1 fuse, 7.5a) (diagram 4 of 5)
From driver side j/b (d-acc relay) (diagram 4 of 5)
From driver side j/b (d-ig1 relay) (diagram 4 of 5)
From fusible link block (am2 fuse, 30a) (diagram 1 of 5)
From fusible link block (p-j/b fuse, 80a) (diagram 1 of 5)
Front cigarette lighter
Fusible link block (on right rear of engine compt)
G10
G302 (right side of shift lever)
H-lp lvl fuse 5a
Headlights system
Ig1
Ig2
Ignition switch
Ik (right side side panel)
J10
Junction connectors j/c 12 & j/c 13 (behind upper center of dash)
Lock
Navigation system & sound system
P b/anc fuse 5a
P door fuse 25a
P rr-ig fuse 10a
P s/htr fuse 15a
P-acc fuse 7.5a
P-acc relay
P-cig fuse 15a
P-ig fuse 7.5a
P-ig1 relay
Passenger side j/b (at right kick panel)
Passenger side j/b ecu
Pnk
Red
Rr door lh fuse 20a
Rr door rh fuse
Seats system
St2
Sta fuse 7.5a
Start
Starter relay
Tel fuse 7.5a
To passenger side j/b (ig2 fuse 7.5a) (diagram 1 of 5)

Power Distribution Wiring Diagram (4 of 5) for Lexus LS 430 2002

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List of elements for Power Distribution Wiring Diagram (4 of 5) for Lexus LS 430 2002:

(right side side panel) ik
A/c fuse 7.5a
Abs-ig fuse 7.5a
Air conditioning system
Air conditioning system & body computer system
Airsus fuse 20a
Am1 fuse 7.5a
Anti-theft system, body computer system, defogger system, door locks system, mirror system, passive restraints system & power windows system
Anti-theft system, body computer system, door locks system & power windows system
Anti-theft system, body computer system, door locks system, mirrors system, power windows system & shift interlock system
B/anc
Body computer system
Body computer system & horns system
Body computer system, cruise control system, electronic suspension system, engine controls system, exterior lights system, seats system, shift interlock system & transmission system
Body computer system, garage door system & interior lights system
Cruise control system
Cruise control system, electronic suspension system, engine controls system & transmission system
D b/anc fuse 5a
D p/seat fuse 30a
D rr-ig fuse 10a
D s/htr fuse 15a
D-acc fuse 7.5a
D-acc relay
D-cig fuse 15a
D-ig1 relay
Driver side j/b (at left kick panel)
Driver side j/b ecu
E10
E11
E17
Electronic suspension system
F11
F12
F15
F16
F17
F18
From d s/htr p fuse 15a (diagram 4 of 5)
From fusible link block (d-j/b fuse, 80a) (diagram 1 of 5)
From security q fuse 7.5a (diagram 4 of 5)
G10
G202 (left side of dash)
Gauge fuse 7.5a
I15
I17
J/c 30 (rearward of right rear fenderwell)
J10
Memory system
Mpx-ig fuse 7.5a
Navigation system
Obd fuse 7.5a
Panel fuse 7.5a
Passive restraints system & body computer system
Pnk
Power outlet
Pwr outlet fuse 15a
Rear cigarette lighter
Red
Seats system
Security fuse 7.5a
Shift interlock system
Stop fuse 5a
Ti & te fuse 20a
To engine room j/b 1 (r/b 1, ig1 relay) (diagram 2 of 5)
To gauge fuse 7.5a (diagram 4 of 5)
To ignition switch (diagram 3 of 5)
To j/c 12 & j/c 13 (diagram 3 of 5)
To panel fuse 7.5a (diagram 4 of 5)
To passenger side j/b (p-acc relay) (diagram 3 of 5)

Power Distribution Wiring Diagram (5 of 5) for Lexus LS 430 2002

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List of elements for Power Distribution Wiring Diagram (5 of 5) for Lexus LS 430 2002:

Acc
Air conditioning system & body computer system
Amp fuse 30a
Body computer system & interior lights system
Body computer system, exterior lights system & interior lights system
C10
C11
Cellular telephone system
Coil
Contact
E13
E19
F10
From fusible link block (lug j/b fuse, 50a) (diagram 1 of 5)
From rr s/shade r fuse 15a (diagram 5 of 5)
Fuel opn fuse 10a
Fuel opn(p)
J/c 23 (rearward of left rear fenderwell)
L-acc relay
L-ig1 relay
L-o/c (p)
Lce lp fuse 7.5a
Luggage room j/b (on left side of luggage compartment)
Luggage room j/b ecu
Navigation system
Noise filter
P p/seat fuse 30a
P-gnd
Power tops system
Rr a/c fuse 7.5a
Rr acc fuse 7.5a
Rr ecu-b fuse 7.5a
Rr ig fuse 7.5a
Rr s/htr fuse 20a
Rr s/shade fuse 15a
Rr s/shade relay
Rr seat lh fuse 30a
Rr seat rh fuse 30a
S roof fuse 25a
Seats system
Sound system
To fuel opn fuse 10a (diagram 5 of 5)

POWER DOOR LOCKS

Power Door Lock Wiring Diagram (1 of 2) for Lexus LS 430 2002

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List of elements for Power Door Lock Wiring Diagram (1 of 2) for Lexus LS 430 2002:

A1+
A1-
Anti-theft system
Bdr
Cps1
Cps2
Cps3
Cpse
Cpub
Cty
D24
D25
Dbls
Dle
Driver door ecu (in left front door)
Driver side j/b (at left kick panel)
F11
F16
F17
Front passenger door ecu (in right front door)
Full
Ground
Half
Hot at all times
I15
Ill+
J/c 21 (forward of left rear fenderwell)
J/c 27 (forward of right rear fenderwell)
Keye
Kul
Left front door courtesy switch
Left front door lock motor
Lsw
Mpx-ig fuse 7.5a
Mpx1
Mpx2
Mul
Pnk
Pole
Power window master switch
Pwe
Pws
Red
Right front door courtesy switch
Right front door lock control switch
Right front door lock motor
Sig
Warning systems

Power Door Lock Wiring Diagram (2 of 2) for Lexus LS 430 2002

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List of elements for Power Door Lock Wiring Diagram (2 of 2) for Lexus LS 430 2002:

A1+
A1-
Anti-theft system
Bdr
Cps1
Cps2
Cps3
Cpse
Cpub
Cty
D door fuse 25a
Dbls
Dlel
Driver side j/b
Full
G10
Ground
Half
Hot at all times
I10
I22
J/c 21 (forward of left rear fenderwell)
J/c 27 (forward of right rear fenderwell)
J/c 30 (rearward of right rear fenderwell)
J10
J11
J12
J13
Junction connector (behind upper center of dash)
Left rear door courtesy switch
Left rear door ecu (in left rear door)
Left rear door lock motor
Lh rr door fuse 20a
Lsw
Luggage room j/b (on left side of luggage compartment)
Mpx-b1 fuse 7.5a
Mpx1
Mpx2
P door fuse 25a
Passenger side j/b (at right kick panel)
Pole
R13
R14
Red
Rh rr door fuse 20a
Right rear door courtesy switch
Right rear door ecu (in right rear door)
Right rear door lock motor
Sel1
Sig

POWER MIRRORS

Power Mirror Wiring Diagram for Lexus LS 430 2002

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List of elements for Power Mirror Wiring Diagram for Lexus LS 430 2002:

Driver door ecu (in left front door)
Ec+
Ec-
Eci+
Eci-
F14
F16
Gnd
Gnd5
Hot in on or start
I12
Ig1
Ii (right side of shift lever)
Inner mirror
J/c 14 (behind upper center of dash)
Left outside rear view mirror
Overhead j/b (at front of roof opening)
P-ig fuse 15a
Passenger door ecu (in right front door)
Passenger side j/b (right kick panel)
Right outside rear view mirror

POWER SEATS

Climate Control Seats Wiring Diagram for Lexus LS 430 2002

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List of elements for Climate Control Seats Wiring Diagram for Lexus LS 430 2002:

(behind upper center of dash)
(under front
Bl (forward of left rear fenderwell)
Blr wtr lh
Blr wtr rh
Climate control seat switch
Computer data lines
D s/htr fuse 15a
Driver seat climate controller
Driver seat ecu (below seat)
Driver side j/b (at left kick panel)
Driver's climate control seat ecu under drivers seat
G j14
G j15
Hot in on or start
Idl
Ik (right dash side panel)
Ind
J/c
J/c 14, j/c 15
Lh chsh thrm
Lind
Lv5
Lvg
Lvs
Mpx1
P s/htr fuse 15a
P-ig fuse 7.5a
Passenger seat climate controller
Passenger side j/b (at right kick panel)
Passenger's climate control seat ecu
Passenger's seat)
Pnk
Red
Rind
Rlid
Rrid
Rsid
Rv5
Rvg
Rvs
Tb5
Tbs
Tdb+
Tdb-
Ted
Ted lh/cush
Under passengers seat

Driver's Lumbar Wiring Diagram for Lexus LS 430 2002

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List of elements for Driver's Lumbar Wiring Diagram for Lexus LS 430 2002:

(forward of left rear fenderwell)
D p/seat fuse 30a
Driver side j/b (at left kick panel)
Driver's lumbar support control switch
Hot at all times
J/c 21
J10
Lower side lumbar control motor
Red
Upper side lumbar control motor

Heated Seats Wiring Diagram, Front for Lexus LS 430 2002

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List of elements for Heated Seats Wiring Diagram, Front for Lexus LS 430 2002:

(behind upper center of dash)
(forward of left rear fenderwell)
D s/htr fuse 15a
Driver seat heater
Driver side j/b (at left kick panel)
G j14
G j15
Hot in on or start
Ik (right dash side panel)
Ir (under front passenger's seat)
J/c 14, j/c 15
J/c 21
P s/htr fuse 15a
P-ig fuse 7.5a
Passenger seat heater
Passenger side j/b (at right kick panel)
Seat heater switch
Thl
Thr

Heated Seats Wiring Diagram, Rear for Lexus LS 430 2002

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List of elements for Heated Seats Wiring Diagram, Rear for Lexus LS 430 2002:

(behind upper center of dash)
(forward of right rear fenderwell)
B10
B11
Bp (left rear passenger seat back)
G j14
G j15
Hil
Hir
Hot in on or start
Ik (right dash side panel)
Indc
J/c 14, j/c 15
J/c 27
Left rear seat heater
Luggage room j/b (left side of luggage compt)
P-ig fuse 7.5a
Passenger side j/b (at right kick panel)
Rear seat heater switch
Right rear seat heater
Rr s/htr fuse 20a
Seat heater switch
W/ rear power seats
W/o rear power seats

Passenger's Power Seat Wiring Diagram for Lexus LS 430 2002

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List of elements for Passenger's Power Seat Wiring Diagram for Lexus LS 430 2002:

Down
Front
Head rest
Head rest control motor (in seat)
Hot at all times
Ir (under front passenger's seat)
Lifter
Lifter control motor (in seat)
Luggage room j/b (left side of luggage compt)
Lumbar
Lumbar support control motor (in seat)
P p/seat fuse 30a
Passenger's power seat control switch
Passenger's power seat sub control switch
Passenger's seat lumbar support switch
Rear
Reclining
Reclining control motor (in seat)
Red
Slide
Slide control motor (in seat)
Vertical
Vertical control motor (in seat)

Rear Vibrating Seats Wiring Diagram for Lexus LS 430 2002

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List of elements for Rear Vibrating Seats Wiring Diagram for Lexus LS 430 2002:

B10
Bp (left rear passenger seat back)
Bq (right rear passenger seat back)
D rr-ig fuse 10a
Driver door ecu
Driver side j/b (at left kick panel)
Front passenger door ecu
G j10
Gnd1
Hot at all times
Hot in on or start
I14
I20
J/c 10, j/c 11 (behind upper center of dash)
J/c 31 (behind left rear seat back)
J11 g
Left rear door ecu
Left rear seat ecu
Left rear vibration seat ecu
Left vibrator
Mpx
Mpx-b1 fuse 7.5a
Mpx1
Mpx2
P rr-ig fuse 10a
Passenger side j/b (at right kick panel)
Right rear door ecu
Right rear seat ecu
Right rear vibration seat ecu
Right vibrator
Stop
Strt
Sysb
Vib+
Vib-
Vibe
Vibration switch (part of rear seat control switch)

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagrams for Lexus LS 430 2002

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List of elements for Power Top/Sunroof Wiring Diagrams for Lexus LS 430 2002:

Cls
Combination meter
Cpu
Cty
D25
Data
Dome fuse 10a
Door lock control receiver (inner mirror)
Down
Driver door ecu (inside left front door)
Driver side j/b (at left kick panel)
Dwn
E11
E13
E16
F15
F17
F18
Gateway ecu (behind left side of dash)
Gauge fuse 7.5a
Gnd
Hot at all times
Hot in on or start
Hot in run
I14
I19
Ig3
Ii (right side of shift lever)
Ik (right dash side panel)
J/c 10, j/c 12 (behind upper center of dash)
J/c 14 (behind upper center of dash)
J/c 16, j/c 17 (behind upper center of dash)
J12
J14
J16
J17
Left front door courtesy switch
Left rear door courtesy switch
Left rear door ecu (inside left rear door)
Luggage room j/b (left side of luggage compt)
Moon roof control ecu (at front of roof opening)
Mpd1
Mpd2
Mpi2
Mpx
Mpx-b2 fuse 7.5a
Mpx1
Mpx2
Opn
Overhead j/b (at front of roof opening)
P-ig fuse 7.5a
Passenger side j/b (at right kick panel)
R13
R14
Rc0
Rda
Red
Right front door courtesy switch
Right front door ecu (inside right front door)
Right rear door courtesy switch
Right rear door ecu (inside right rear door)
Rssi
S/roof fuse 25a
Theft deterrent ecu (behind right upper center of dash)
Transponder key computer (behind upper center of dash)

POWER WINDOWS

Power Windows Wiring Diagram (1 of 3) for Lexus LS 430 2002

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List of elements for Power Windows Wiring Diagram (1 of 3) for Lexus LS 430 2002:

(in front of left front door) driver door ecu
+b1
+b2
Acc
Auto
Bdr
Bl j/c 21 (forward of left rear fenderwell)
Bzr
Bzr2
Bzr3
Bzrg
C10
Cpub
Cty
D door fuse 25a
D-acc fuse 7.5a
D24
D25
Data
Ddn
Door lock control receiver (inner mirror)
Driver side j/b (at left kick panel)
Dt1
Dt2
Dt3
Dup
F11
F17
F18
Gnd
Hot at acc or on
Hot at all times
Hot in on or start
I14
I15
I19
I21
I22
Ii (right side of shift lever)
J10
J11 j/c 10, j/c 11 (behind upper center of dash)
J12
J13 j/c 12, j/c 13 (behind upper center of dash)
J14 j/c 14, j/c 15 (behind upper center of dash)
J15
Keyless buzzer (near base of "a" pillar)
Keyless buzzer on/off switch
Left front door courtesy switch
Left front power window motor
Lmt
Mdn
Mpx-ig fuse 7.5a
Mpx1
Mpx2
Mup
Open
Passenger side j/b (at right kick panel)
Pls
Power window master switch
Pwe
Pws
Rc0
Rda
Red
Rssi
Sc1
Sc2
Sc3
Security fuse 7.5a
Sgnd
Sig
Theft deterrent ecu (behind upper right center of dash)
Trans- ponder key computer (behind upper center of dash)
W/l
Wls1
Wlsw

Power Windows Wiring Diagram (2 of 3) for Lexus LS 430 2002

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List of elements for Power Windows Wiring Diagram (2 of 3) for Lexus LS 430 2002:

Auto
Bdr
Cpub
Cty
E11
E18
F16
F17
Front passenger door ecu (inside right front door)
Gateway ecu (behind left end of dash)
Gnd
Hot at all times
I10
I13
J/c 27 (forward of right rear fenderwell)
J10
J10 j/c 10, j/c 11 (behind upper center of dash)
J11
Lmt
Mdn
Mpd1
Mpd2
Mpx-b1 fuse 7.5a
Mpx1
Mpx2
Mup
P door fuse 25a
Passenger side j/b (at right kick panel)
Pct
Pls
Pwe
Red
Right front door courtesy switch
Right front power window control switch
Right front power window motor
Sgnd
Sig
Wls1

Power Windows Wiring Diagram (3 of 3) for Lexus LS 430 2002

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List of elements for Power Windows Wiring Diagram (3 of 3) for Lexus LS 430 2002:

(inside left rear door) left rear door ecu
Auto
Bdr
Cpub
Cty
Gnd
Hot at all times
J/c 21 (forward of left rear fenderwell)
J/c 27 (forward of right rear fendewell)
J/c 30 (rearward of right rear fendewell)
Left rear door courtesy switch
Left rear power window control switch
Left rear power window motor
Lmt
Mdn
Mpx1
Mpx2
Mup
Passenger side j/b (at right kick panel)
Pct
Pcti
Pcto
Pls
Pwe
R12
R13
R14
R15
Red
Right rear door courtesy switch
Right rear door ecu (inside right rear door)
Right rear power window control switch
Right rear power window motor
Rr door lh fuse 20a
Rr door rh fuse 20a
Sel1
Sgnd
Sig

Rear Window Sun Shade Wiring Diagram for Lexus LS 430 2002

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List of elements for Rear Window Sun Shade Wiring Diagram for Lexus LS 430 2002:

(right dash side panel) ik
Bp (left rear passenger seat back)
Ecu
Fsw
Hot at all times
J/c 23 (rearward of left rear fenderwell)
J/c 26 (near center of rear speaker shelf)
Lmt
Luggage room j/b (on left side of luggage compt)
Luggage room j/b ecu
P-gnd
Passenger side j/b ecu (at right kick panel)
R27
Rear sunshade control relay (below center of rear speaker shelf)
Rear sunshade switch
Rear sunshade switch (part of rear seat control switch) (w/ rear power seat only)
Rev
Rr s/shade fuse 15a
Rr s/shade relay
Rss
Rsw
W/ rear pwr seat and/or air suspension
W/o rear pwr seat and/or air suspension

RADIO

Radio Wiring Diagrams (1 of 2) for Lexus LS 430 2002

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List of elements for Radio Wiring Diagrams (1 of 2) for Lexus LS 430 2002:

Acc
Amp fuse 30a
Atx+
Atx-
C10
E17
Gateway ecu (behind left end of dash)
Gnd
Gtx+
Gtx-
Hot at all times
Hot in on & acc
Hot with l-acc relay energized
Ij (right dash brace)
J/c 14, j/c 15 (behind upper center of dash)
J/c 28, j/c 29 (rearward of right rear fenderwell)
J/c 30 (rearward of right rear fenderwell)
Luggage room j/b (on left side of luggage compt)
Mmut
Multi- display
Mute
Nca
P-acc fuse 7.5a
Passenger's side j/b (at right kick panel)
Radio & player
Radio fuse 1 7.5a
Red
Rr acc fuse 7.5
Rr ecu-b fuse 7.5
Sgnd
Stereo component tuner
Tel fuse 7.5a
Tsx-
Tx+
Tx-
Txs+
Txs-
W/ navigation

Radio Wiring Diagrams (2 of 2) for Lexus LS 430 2002

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List of elements for Radio Wiring Diagrams (2 of 2) for Lexus LS 430 2002:

+b1
+b2
7 speaker
9 speaker
Acc
Audio & rear a/c control switch
Aui+
Aui-
Auo+
Auo-
Bp (left rear passenger seat back)
C12
Combination meter
Fl+
Fl-
Fr+
Fr-
Gnd
Gnd4
Gnd5
J/c 30 (rearward of right rear fenderwell)
J/c j16, j17 (behind upper center of dash)
Left front door speaker
Left front tweeter
Left rear door speaker
Left rear tweeter
Ml+
Ml-
Mr+
Mr-
Mtx+
Mtx-
Mute
N-mu
Navigation ecu (right rear corner of luggage compartment)
Nvmu
Pnk
Red
Right front door speaker
Right front tweeter
Right rear door speaker
Right rear tweeter
Rl+
Rl-
Rr+
Rr-
Rtx+
Rtx-
S28
S29
S30
Sp+
Sp-
Spd
Spdo
Spi+
Spi-
Stereo component amplifier (on right side of luggage compt, behind trim)
T14
T15
Telephone transceiver & speaker relay (w/ link system: on right side of luggage compartment, w/o link system: on left side of luggage compartment)
Tmut
Tx+
Tx-
W/ navigation
W/o navigation
Wfl+
Wfl-
Wfr+
Wfr-
Woofer

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram for Lexus LS 430 2002

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List of elements for Shift Interlock Wiring Diagram for Lexus LS 430 2002:

Acc
D-acc fuse 7.5a
Driver side j/b (left kick panel)
Driver side j/b ecu (left kick panel)
F18
Gauge fuse 7.5a
Hot at all times
Hot in acc or on
Hot in on or start
Ih (right side of shift lever)
Ik (right dash side panel)
J/c 11 (behind upper center of dash)
Key interlock solenoid
Kls+
Red
Shift lock control ecu (below shift lever, in center comsole)
Stop fuse 5a
Stop light switch (on bracket, above brake pedal)
Stp
Stpi
Unlock warning switch

STARTING/CHARGING

Charging Wiring Diagram for Lexus LS 430 2002

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List of elements for Charging Wiring Diagram for Lexus LS 430 2002:

Alt fusible link 140a
Alt-s fusible link 5a
Battery
Battery ground
Chg
Combination meter
Computer data lines system
Cpu
Driver side j/b (left kick panel)
Engine control module (on left front of engine compartment in protective case)
Engine room no. 1 r/b (left front of engine compt, behind headlight)
Fr ig fuse 7.5a
Fusible link block (on right rear of engine compartment)
Gauge fuse 7.5a
Generator
Hot in on or start
Ih (right side of shift lever)
J/c 1 & 2 (near engine control module, in protective case)
J/c 16 & 17 (behind upper center of dash)
J16
J17
Mpx1
Nca
Red

Starting Wiring Diagram for Lexus LS 430 2002

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List of elements for Starting Wiring Diagram for Lexus LS 430 2002:

Acc
Am2
Am2 fuse 30a
Battery
E10 (engine harness, right side of firewall)
E2 (engine harness, near ecm)
Ee (side of right cylinder head)
Engine control module (on left front of engine compt, in protective case)
Engine room no. 1 j/b (left front of eng compt, behind headlight)
Fusible link block (on right rear of engine compt)
Ignition switch
J/c 5 & j/c 6 (near engine control module, in protective case)
Lock
Nca
Park/neutral position switch (on right side of transaxle)
St2
Sta fuse 7.5a
Start
Starter
Starter relay

SUPPLEMENTAL RESTRAINTS

Supplemental Restraint Wiring Diagram (1 of 2) for Lexus LS 430 2002

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List of elements for Supplemental Restraint Wiring Diagram (1 of 2) for Lexus LS 430 2002:

(near lower rear of left rear door opening) left rear side air bag sensor
(right side of shift lever) ik
+sl
+sr
-sl
-sr
A23
A24
A25
Air bag sensor assembly (behind lower center of dash, on transmission tunnel)
Air bag squib (steering wheel pad)
Anti-theft system
D2+
D2-
Driver side j/b (at left kick panel)
Escl
Escr
Esl
Esr
Fsr+
Fsr-
G404
Gsw
Hot in on or start
Icl+
Icl-
Icr+
Icr-
Ig1
Ig2
Ig2 fuse 7.5a
J/c 23 (rearward of left rear fenderwell)
Lbe+
Left air bag curtain shield squib
Left front buckle switch (in left front seat belt bukle)
Left front pretensioner
Left rear pretensioner
Left side air bag squib
Lsp+
Lsp-
Mpx-ig fuse 7.5a
Mpx1
Mpx2
P2+
P2-
Passenger side j/b (at right kick panel)
Pl+
Pl-
Plr+
Plr-
Pnk
Pr+
Pr-
Prr+
Prr-
Rbe+
Red
Right curtain shield air bag squib
Right front buckle switch (in right front seat belt buckle)
Right front pretensioner (near base of right "b" pillar)
Right front side air bag sensor (near base of right "b" pillar)
Right rear pretensioner (near base of right "c" pillar)
Right rear side air bag sensor
Right side air bag squib
Rl+
Rl-
Rr+
Rr-
Sfl+
Sfl-
Sfr+
Sfr-
Sil
Ssl+
Ssl-
Ssr+
Ssr-
Vucl
Vucr
Vupl
Vupr

Supplemental Restraint Wiring Diagram (2 of 2) for Lexus LS 430 2002

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List of elements for Supplemental Restraint Wiring Diagram (2 of 2) for Lexus LS 430 2002:

(right kick panel) ii
(right side of shift lever) ih
+sl
+sr
-sl
-sr
A/c control assembly
A11
Air bag
Air bag squib (front passenger air bag asssembly)
C12
Center cluster integration panel
Combination meter
Cpu
Data link connector 3 (partial) (below left side of dash)
Dbkl
Driver side j/b (at left kick panel)
Driver side j/b ecu (at left kick panel)
E10
Engine control module (on left front of engine compartment, in protective case)
Engine room 2 r/b (on left front of engine compartment, behind headlight)
Esl
F13
F15
Front controller
Gateway ecu (behind left end of dash)
Gauge fuse 7.5a
Hot in on or start
J16
J17
Junction connector (behind upper center of dash)
Junction connector 13 (behind upper center of dash)
Left front air bag sensor (on left front of engine compartment)
Left front side air bag sensor (near base of left "b" pillar)
Mpi1
Mpi2
Mpl2
Mpx +
Mpx -
Mpx-
Mpx1
Mpx2
Passenger side j/b (at right kick panel)
Passenger side j/b ecu
Right front air bag sensor (on right front of engine compartment)
Skid control ecu (behind left side of dash)
Solid state
Srs
Ssl+
Ssl-
Vupl
W/ lexus navigation system
W/o lexus navigation system

TRANSMISSION

A/T Wiring Diagram (1 of 2) for Lexus LS 430 2002

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List of elements for A/T Wiring Diagram (1 of 2) for Lexus LS 430 2002:

(engine harn, left side of engine compt, under engine room j/b 1)
+b1
+bm
2002-03
Accelerator position sensor (behind left center of dash)
Batt
C15
Combination meter
Computer data lines system
Data link connector 3 (below left side of dash)
Driver side j/b (behind left kick panel)
Driver side j/b ecu (left kick panel)
Ec (radiator left side support)
Ect pwr
Ect snow
Efi 1 fuse 30a
Efi main relay
Electronically controlled transmission pattern select switch
Engine control module (ecm) (left front of engine compt, in protective case)
Engine room r/b 1 (left front of engine compt, behind headlight)
Epa
Eptk
Etcs fuse 10a
F15
Fr ig fuse 7.5a
Gauge fuse 7.5a
Hot at all times
Hot in on or start
Hot in start
Ign fuse 7.5a
Igsw
Ii (right side of shift lever)
Ik (right dash side panel)
J/c 1, j/c 2 (near ecm) j2
J/c 13 (upper center of dash)
J/c 16, j/c 17 (upper center of dash)
J/c 3 (near ecm)
J16
J16 j/c 16, j/c 17 (upper center of dash)
J17
Mil
Mpx-
Mpx1
Mpx2
Mrel
Passenger side j/b (behind right kick panel)
Passenger side j/b ecu (behind right kick panel)
Pnk/nlk
Pwr
Red
Short connector sc1, sc2 (near ecm)
Sil
Snow
Speedo
Sta
Sta fuse 7.5a
Stop fuse 5a
Stoplight switch (above brake pedal, on bracket)
Stp
Stpi
Stpo
Tac
Tach
Vcpa
Vpa
Vpa2
Vptk
Wfse
Wsfe

A/T Wiring Diagram (2 of 2) for Lexus LS 430 2002

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List of elements for A/T Wiring Diagram (2 of 2) for Lexus LS 430 2002:

(behind right kick panel) passenger side j/b
(left side of transmission) electronically controlled transmission solenoid
(right side of transmission) (integral to park/neutral position switch) a/t indicator light switch
At4
Atl
Braided
C10
C16
E01
E02
E03
Ee (side of right cylinder head)
Ef (side of left cylinder head)
Engine control module (ecm) (left front of engine compt, in protective case)
Engine coolant temperature sensor (front center of engine)
Eoil
Eta
Ethw
Ge01
J/c 4 (near ecm)
J/c 5 (near ecm)
Me01
Nca
Nco+
Nco-
Nssd
Nssl
O/d direct clutch speed sensor (left side of transmission)
Oil
Red
Shift lock control ecu (in center console, below shift lever)
Sln+
Sln-
Slt+
Slt-
Slu+
Slu-
Sp2+
Sp2-
Throttle control motor (on throttle body)
Throttle position sensor (on throttle body)
Thw
Vehicle speed sensor (on transmission)
Vta
Vta2