All Wiring Diagrams for Lexus LS 400 1998 – Schemi elettrici per auto

AIR CONDITIONING

Air Conditioning Wiring Diagrams (1 of 2) for Lexus LS 400 1998

List of elements for Air Conditioning Wiring Diagrams (1 of 2) for Lexus LS 400 1998:

(a/c sub 1 right wire harness, top right center of dash) i48
(engine room main wire harness, behind left headlight) e8
(instrument panel wire harness, top right center of dash) (w/o lexus navigation) i25 (w/lexus navigation) 126
A/c control assembly (center of dash)
A/c dual pressure switch (left side of radiator grille)
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
Abol
Abor
Absl
Absr
Acc
Acmg
Aif
Air
Air inlet control servo motor (right side of dash)
Air mix control servo motor (driver side) (left side of dash, right of steering column)
Air mix control servo motor (front passenger side) (behind center of dash)
Air vent mode control servo motor (driver side) (top left side of dash, right of steering column)
Air vent mode control servo motor (front passenger side) (top right center of dash)
Aml1
Aml2
Aml3
Aml4
Amr1
Amr2
Amr3
Amr4
Aol1
Aol2
Aol3
Aol4
Aor1
Aor2
Aor3
Aor4
Blw
Body ecu (left side of dash)
C10
C11
C12
C18
Cool air bypass servo motor (driver side) (left side of dash, right of steering column)
Cool air bypass servo motor (front passenger side) (center of dash)
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
Defogger system
Dgs
E11
E13
E16
Engine control module (behind right side of dash)
F11
F21
F22
F23
F24
G206 (left dash brace)
Gnd
Hot in acc or on
Ig+
Ill+
Instrument cluster system
Instrument panel j/b (rear of parking brake release lever)
Interior lights system
J/c 12 (top center of dash)
J/c 16 (top center of dash)
Lcki
Mpx+
Mpx-
Mpx1
Mpx2
Multi display (w/lexus navigation system)
Pbew
Pnk
Pre
Radio no.2 fuse 15a
Rdfg
Rec- irc
Reost
Right fender) g101
Tam
Tel1
Telephone transceiver & speaker relay (left side of luggage compartment)
Tfal
Tfar
Tpbl
Tpbr
Tpi
Tsl
Tsr
W/o lexus navigation system
W/o navigation system
Wvo
Wvs

Air Conditioning Wiring Diagrams (2 of 2) for Lexus LS 400 1998

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List of elements for Air Conditioning Wiring Diagrams (2 of 2) for Lexus LS 400 1998:

(a/c sub 1 left wire harness, top left center of dash)
(a/c sub 1 right wire harness, top right center of dash) i48
(engine room main wire harness, near left headlight)
(left front of engine compartment) engine room j/b
(left rear side of cylinder head) g114
A/c ambient temperature sensor (center front of engine compartment)
A/c evaporator temp. sensor (top right center of dash)
A/c fuse 7.5a
A/c magnetic clutch (left side of engine)
A/c room temp. sensor (left side of dash)
A/c single pressure switch (left side of radiator grille)
A/c solar sensor (top right side of dash)
B12
B13
Blower controller (behind right side m+ of dash)
Blower motor (behind right side of dash)
C12
C21
Center j/b (behind combination meter)
Combination meter
D11
Driver side j/b (left kick panel)
Duct sensor (driver side) (left side of dash)
Duct sensor (front passenger side) (top right side of dash)
E11
E8 (engine room main wire harness, near left headlight)
Engine coolant temperature switch (near left headlight)
Engine room j/b (left side of engine compartment)
Exhaust gas sensor (left side of radiator grille)
Fusible link block (left side of engine compartment)
G101 (front side of right fender)
G201 (right side of dash)
Gas
Gnd
Heater fuse 10a
Heater fuse 50a
Heater relay
Hot at all times
Hot in on or start
Hot in on or start
I47
In line diode
Instrument panel j/b (rear of parking brake release lever)
J/c 10 (lower right side of dash)
J/c 13 (top center of dash)
J/c 3 (right kick panel)
J11
Mg clt relay
Open
R/b 6 (under left headlight)
Rad fan no.1 relay
Rad fan no.2 relay
Radiator fan motor & resistor (center front of engine compartment)
Rdi fan fuse 30a
Red
Shut
Water valve servo motor (top left side of dash, right of steering column)

ANTI-LOCK BRAKES

Anti-lock Brake Wiring Diagrams (1 of 3) for Lexus LS 400 1998

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List of elements for Anti-lock Brake Wiring Diagrams (1 of 3) for Lexus LS 400 1998:

(front of right front fender)
A38
A41
Abs & trac & vsc actuator (at right front corner of engine compt)
Abs & trac & vsc ecu (behind right side of dash)
Abs fuse 60a
Abs motor relay
Abs sol relay
Ast
Braided
C10
C11
C12
Engine room r/b (on left side of engine compt, forward of strut tower)
Fl+
Fl-
Fr+
Fr-
Fss
Fusible link block (on left side of engine compt, forward of strut tower)
G100 (front of left front fender)
G101
G206 (right side of instrument panel brace)
Grd1
Grd2
Hot at all times
Junction connector j/c 9 (right kick panel)
Left front abs speed sensor (left front wheel assembly)
Master cylinder pressure sensor (at right front of engine compt)
Mr2
Pmc
Pnk
Red
Right front abs speed sensor (right front wheel assembly)
Sflh
Sflr
Sfrh
Sfrr
Smfl
Smr
Spfl
Spfr
Srcf
Srcr
Srlh
Srlr
Srrh
Srrr
Vcm

Anti-lock Brake Wiring Diagrams (2 of 3) for Lexus LS 400 1998

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List of elements for Anti-lock Brake Wiring Diagrams (2 of 3) for Lexus LS 400 1998:

(behind lower left side of dash) data link connector 3
(on top left side of engine) data link connector 1
A12
A13
B10
B11
B18
Brake fluid level warning switch (in brake fluid reservoir)
C11
C13
C14
Center j/b (behind instrument cluster)
D12
D15
D17
Driver side j/b (behind left kick panel)
E14
E16
Ecu-b fuse 7.5a
Ecu-ig fuse 10a
Engine room j/b (on left side of engine compt, forward of strut tower)
G202 (behind combination meter)
G202 (left side of dash)
G206 (right side of instrument panel brace)
Hot at all times
Hot in run or start
Instrument panel j/b (at rear of parking brake release lever)
Junction connector j/c 16 (behind center air vents)
Junction connector j/c 5 (upper left end of dash)
Junction connector j/c 6 (left end of dash)
K10
L12
Park/neutral position switch (on transmission)
Pnk
Steering sensor (combination switch)
Stop lp fuse 25a
Stop-s fuse 7.5a
Stoplight switch (brake pedal bracket)
Vsc buzzer (behind lower left side of dash)
Vsc off switch

Anti-lock Brake Wiring Diagrams (3 of 3) for Lexus LS 400 1998

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List of elements for Anti-lock Brake Wiring Diagrams (3 of 3) for Lexus LS 400 1998:

A11
A15
A39
A40
Abs & trac & vsc ecu (behind right side of dash)
Abs indic
B12
B15
B17
Bat
Braided
Combination meter
Csw
D/g
Driver side j/b (behind left kick panel)
E13
E14
E20
E21
E22
Electronic suspension system
Eng+
Eng-
Engine control module (behind right side of dash)
Ex02
Flo
Fro
G203 (right kick panel)
Gauge fuse 10a
Ggrd
Gl1
Gl2
Grd3
Gss
Gyaw
Headlight beam level control ecu (behind right side of dash)
Hot in run or start
Ig1
Ind
Instrument panel j/b (at rear of parking brake release lever)
Junction connector j/c 18 (upper right end of dash)
Lbl-
Lblo
Left rear abs speed sensor (left rear wheel assembly)
Neo
Pnk
Red
Right rear abs speed sensor (right rear wheel assembly)
Rl+
Rl-
Rr+
Rr-
Slip indic
Sp1
Ss1+
Ss1-
Stp
Trc+
Trc-
Vgs
Vsc deceleration sensor (under front of center console)
Vsc off indic
Vscw
Vys
Yaw
Yaw rate sensor (near right side of luggage compartment)
Yss

ANTI-THEFT

Anti-theft Wiring Diagram (1 of 2) for Lexus LS 400 1998

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List of elements for Anti-theft Wiring Diagram (1 of 2) for Lexus LS 400 1998:

(behind combination meter) i9
(in driver's door) driver door ecu
A10
A13
A14
A15
A17
A20
Acan
Acc
B13
B14
B15
B16
B17
B19
Bdr
Becu
Body ecu (behind left side of dash)
Bzr
Bzr2
C10
C12
C17
C18
C20
Center junction block (behind instrument cluster)
Computer data lines system
Cpub
Cty
Ctye
D fr door fuse 20a
D10
D11
D12
D15
D16
D18
Dome fuse 10a
Driver side junction block (behind left kick panel)
E13
Engine room junction block (on left side of engine compt, forward of strut tower)
Exterior lights system
Fuse holder (behind left side of dash)
G202 (behind combination meter)
G202 (left side of dash)
G206 (right side of instrument panel brace)
G407 (right side of trunk rear panel)
Grd
Grd1
Grd2
Haz
Hdcy
Headlights system
Horn
Horns system
Hot at all times
Hot in accy or run
Hot in run or start
Hrly
I6 (dash harn, left end of dash)
Ind
Instrument panel junction block (at rear of parking brake release lever)
J10
Junction connector j/c 9 (right kick panel)
Keye
Keyless buzzer (at left rear corner of engine compt)
Keyless buzzer on/off switch
Ksw
Kul
Left front door key lock & unlock switch
Left front door lock control motor, door unlock detection switch & door open detection switch
Left front door lock control switch (power window master switch)
Lock
Lsw
Lswe
Luggage compartment door key unlock switch
Mpx+
Mpx-
Mpx-b fuse 10a
Mpx1
Mpx2
Mul
Open
Pnk
Pwe
Pwr-ig fuse 15a
Pws
Radio 2 fuse 15a
Rco
Rda
Red
Sig
Theft deterrent horn (at right rear corner of engine compt)
Tkul
To center junction block (diagram 2 of 2)
Trly
Unlk
Wireless door lock control ecu (behind right side of dash)

Anti-theft Wiring Diagram (2 of 2) for Lexus LS 400 1998

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List of elements for Anti-theft Wiring Diagram (2 of 2) for Lexus LS 400 1998:

(left side of dash)
(right side of instrument panel brace) g206
A12
A18
B14
B15
B16
B17
B19
Bdr
C14
C15
Center junction block (behind instrument cluster)
Computer data lines system
Cpub
Cty
Ctye
D rr door fuse 20a
D11
Dle
Engine hood courtesy switch (engine compartment)
From engine room junction block (diagram 1 of 2)
From instrument panel junction block (diagram 1 of 2)
Fuse holder (behind left side of dash)
G101 (front of right front fender)
G202
G206 (right side of instrument panel brace)
G300 (under driver's seat)
G301 (under front passenger's seat)
G905 (under right c-pillar)
Grd
Hot at all times
Instrument panel junction block (at rear of parking brake release lever)
Junction connector j/c 16 (behind center air vents)
K10
K12
Keye
Kul
Left rear door ecu (in left rear door)
Left rear door lock control motor, door unlock detection switch & door open detection switch
Lock
Lsw
Lswe
Mpx1
Mpx2
Mul
Not used
Open
P fr door fuse 20a
P rr door fuse 20a
Passenger door ecu (in right front door)
Pnk
Rheostat & security indicator light
Right front door key lock & unlock switch
Right front door lock control motor, door unlock detection switch & door open detection switch
Right front door lock control switch
Right rear door ecu (in right rear door)
Right rear door lock control motor, door unlock detection switch & door open detection switch
Sig
System engine controls
Unlk
Unlock warning switch (behind left side of dash)

BODY COMPUTER

Body Computer Wiring Diagrams (1 of 2) for Lexus LS 400 1998

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List of elements for Body Computer Wiring Diagrams (1 of 2) for Lexus LS 400 1998:

Acan
Acc
Acty
Anti-theft system
B14
B17
B19
Body ecu (behind left side of dash)
Bus
Bzr
Bzr2
C10
C17
Computer data lines system
Data link connector 3 (behind lower left side of dash)
Dbkl
Door locks system
Driver side j/b
Driver's door ecu
Electronic suspension system
Exterior lights system
Front passenger door ecu
G112 (left rear side of engine)
G202 (left side of dash)
Gnd2
Gsw
Haz
Hdcy
Hot in acc or run
Hot in run or start
I46 (dash harn, left side of dash)
Ile
Ind
Instrument panel j/b
Interior lights system
J/c 3 (right kick panel)
Ksw
Left rear door ecu
Moon roof control relay (front of moon roof opening)
Mpx+
Mpx1
Mpx2
Ob2
Pbil
Pnk
Power seat ecu (under driver's seat)
Power windows system
Pwr-ig fuse 15a
Pws
Radio no. 2 fuse 15a
Rco
Rda
Right rear door ecu
S/m
S/s
Sig
Sil
Tilt & telescopic ecu (behind left side of dash)
Trunk, tailgate, fuel doors system
Tsw
Vr1
Vr2
W/ memory
W/ moon roof
W/0 memory
W/o moon roof
Warning system
Wig
Wiper fuse 20a
Wiper/washer system

Body Computer Wiring Diagrams (2 of 2) for Lexus LS 400 1998

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List of elements for Body Computer Wiring Diagrams (2 of 2) for Lexus LS 400 1998:

Anti-theft system
Bdr
Becu
Body ecu (behind left side of dash)
C11
Cl tb
Clte
Clts
D fr door fuse 20a
Dbil
Door locks system
Driver side j/b
Engine controls system
Engine room j/b
Exterior lights system
Fuse holder (behind left side of dash)
G202 (left side of dash)
Gnd
Head
Headlights system
Horn
Horn system
Hot at all times
Hrly
I9 (dash harn, behind combination meter)
Interior lights system
Lgcy
Mpx-
Mpx-b fuse 10a
Mpx1
Parking brake switch (behind left side of dash)
Pbkl
Pkb
Red
Stpi
Tail
Tkul
Tr+
Trly
Trunk, tailgate, fuel doors system
Warning system

COMPUTER DATA LINES

Computer Data Lines for Lexus LS 400 1998

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List of elements for Computer Data Lines for Lexus LS 400 1998:

(left end of dash) j/c 6
(left side of instrument panel brace)
(right kick panel)
A/c control assembly
A12
A14
A15
A39
A40
Abs & trac & vsc ecu (behind right side of dash)
Air suspension ecu (behind right side of dash)
Airbag sensor assembly (behind front of center console)
Anti-lock brakes system (abs sol relay)
B10
Bat
Body ecu (behind left side of dash)
Bus
C14
C16
Center j/b
Combination meter
D/g
D12
D18
Data link connector 1 (top left side of engine)
Data link connector 2 (behind lower left side of dash)
Data link connector 3 (behind lower left side of dash)
Driver's door ecu
Driver's side j/b
E11
E15
E16
E18
Engine control module (behind right side of dash)
Engine controls system (efi relay)
Engine room j/b
F10
Front passenger door ecu
G112 (left rear side of engine)
G202 (behind combination meter)
G206
Hot at all times
Instrument panel j/b
J/c 10 (lower right end of dash)
J/c 3
Left rear door ecu
Moon roof control relay (behind right side of dash)
Mpx+
Mpx-
Mpx1
Mpx2
Multi display
Obd fuse 7.5a
Pnk
Power seat ecu (under driver's seat)
Right rear door ecu
Sil
Tilt and telescopic ecu (behind left side of dash)
W/ memory
W/ moon roof
W/ navigation
W/0 memory
W/o moon roof
W/o navigation

COOLING FAN

Cooling Fan Wiring Diagram for Lexus LS 400 1998

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List of elements for Cooling Fan Wiring Diagram for Lexus LS 400 1998:

1994 vftc c
1998-99
A/c single pressure switch (at upper left radiator support)
Alt fusible link 120a
Battery
E5 (dash harn, left radiator support)
E8 (engine harness, behind left headlight)
Engine coolant temperature switch (near right side of radiator support)
Engine main relay
Engine room j/b (on left side of engine compartment forward of strut tower)
Fusible link block (on left side of engine compartment, forward of strut tower)
G100 (front of left front fender)
G101 (front of right front fender)
Heater fuse 10a
Hot in run or start
Instrument panel j/b (at rear of parking brake release lever)
J11
Nca
R/b 6 (under left headlight)
Radiator fan motor & resistor (at right front of engine compt)
Rdi fan 1 relay
Rdi fan 2 relay
Rdi fan fuse 30a

CRUISE CONTROL

Cruise Control Wiring Diagram for Lexus LS 400 1998

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List of elements for Cruise Control Wiring Diagram for Lexus LS 400 1998:

(dash harn, right kick panel)
(engine harn, left side of engine)
(right rear of engine)
(top left side of engine) data link connector 1
+b1
+bm
A a a
A/t indi- cator switch
Accel position sensor (top front of engine)
B12
B18
Batt
Braided
Cancel
Ccs
Center junction block
Cl+
Cl-
Combination meter
Compartment)
Computer data lines system
Conn e11
Conn e12
Conn e13
Conn e14
Conn e15
Conn e16
Cruise
Cruise control switch
Cruise ind
D10
Driver side junction block
E01
E02
E03
E11
E16
E20
E2g
Efi 1 fuse 20a
Efi 2 fuse 10a
Efi relay
Engine control module (right side of dash)
Engine coolant temperature sensor (top right front of engine)
Engine room junction block
Etcs fuse 15a
Evg
G100 (front of left front fender)
G112 (left rear side of engine)
G112 (rear side of left cyl head)
G117
G117 (rear side of right cyl head)
G202 (left side of dash)
Gauge fuse 10a
Ge01
Hot at all times
Hot in on or start
I1 (dash harn, right kick panel)
I13
I38
Ign fuse 10a
Igsw
Instrument panel junction block
J/c 10 j/c 10 j/c 10 (right side (right side (right side of dash) of dash) of dash)
J/c 6 (left side of dash)
L12
Mass airflow meter (in air intake duct)
Me01
Mpx1
Mpx2
Mrel
Pnk
Ptnk
Red
Res/ acc
Set/ coast
Solid state
Sp 2-
Sp2+
St1-
Stop lp fuse 25a
Stop- light switch
Stop-s fuse 7.5a
Stp
Tha
Throttle control motor & clutch (left front of eng)
Throttle position sensor (on throttle body)
Thw
Vapor pressure sensor (right side of luggage
Vcc
Vehicle speed sensor (on transmission)
Vpa
Vpa2
Vta
Vta2

DEFOGGERS

Defogger Wiring Diagram for Lexus LS 400 1998

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List of elements for Defogger Wiring Diagram for Lexus LS 400 1998:

(at left front corner of engine compt) noise filter (rear window defogger)
(left side of dash) g202
(right side of instrument panel brace) g206
A/c control assembly
A19
D22
Def fuse 50a
Defog relay
Driver side junction block (behind left kick panel)
Engine room junction block (on left side of engine compt, forward of strut tower)
Fusible link block (on left side of engine compt, forward of strut tower)
Gnd
Heater fuse 10a
Hot at all times
Hot in on or start
Instrument panel junction block (at rear of parking brake release lever)
J/c 16 (behind center air vents)
J/c 6 (left end of dash)
J/c 9 (right kick panel)
J11
Left remote control mirror
Mir htr fuse 15a
Mirror heater
Rdfgr
Rear window defogger
Right remote control mirror

ELECTRONIC POWER STEERING

Electronic Power Steering Wiring Diagram for Lexus LS 400 1998

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List of elements for Electronic Power Steering Wiring Diagram for Lexus LS 400 1998:

A17
B12
Center j/b (behind instrument cluster)
Combination meter
Driver side j/b (behind left kick panel)
Ecu-ig fuse 10a
G202 (left side of dash)
Gauge fuse 10a
Gnd
Hot in on or start
Instrument panel j/b (at rear of parking brake release lever)
J/c 5 (upper left end of dash)
Pps ecu (behind left side of dash)
Pps solenoid (at left front corner of engine)
Sol+
Sol-
Spd

ELECTRONIC SUSPENSION

Electronic Suspension Wiring Diagram (1 of 2) for Lexus LS 400 1998

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List of elements for Electronic Suspension Wiring Diagram (1 of 2) for Lexus LS 400 1998:

(combination switch) steering sensor
A12
A13
Air sus fuse 20a
Air suspension ecu (behind right side of dash)
B16
B18
B29
Body computer system
C13
C16
C18
C20
Center junction block (behind instrument cluster)
D12
D14
D18
Data link connector 1 (on top left side of engine)
Dome fuse 10a
Door
Driver side junction block (behind left kick panel)
E16
Ecu-ig fuse 10a
Electronically controlled transmission pattern select switch & height control switch
Engine controls system
Engine room junction block (on left side of engine compt, forward of strut tower)
Fal+
Fal-
Fbl+
Fbl-
G202 (left side of dash)
G203 (right kick panel)
G407 (right side of trunk rear panel)
Gauge fuse 10a
Hot at all times
Hot in run or start
Hsw
Instrument panel junction block (at rear of parking brake release lever)
J10
Junction connector j/c 18 (upper right end of dash)
Junction connector j/c 5 (upper left end of dash)
Junction connector j/c 6 (left end of dash)
L12
Left front height control sensor & acceleration sensor (at left front side of engine compt)
Left front suspension control actuator (at left front strut tower)
Left rear height control sensor (under left rear of vehicle)
Left rear suspension control actuator (at left rear strut tower)
Pnk
Ral+
Ral-
Rbl+
Rbl-
Red
Reg
Right rear acceleration sensor (center of luggage compt)
Right rear height control sensor (under right rear of vehicle)
Sbl
Sgfl
Sgl
Shfl
Shfr
Shrl
Shrr
Spd
Ss1
Ss2
Starting/charging system
Stop fuse 25a
Stop-s fuse 7.5a
Stoplight switch (brake pedal bracket)
Stp

Electronic Suspension Wiring Diagram (2 of 2) for Lexus LS 400 1998

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List of elements for Electronic Suspension Wiring Diagram (2 of 2) for Lexus LS 400 1998:

(dash harn, right kick panel)
(front of right frt fender) g101
(right side of instru- ment panel brace) g206
(under right c-pillar) g905
A10
A14
Air sus relay
Air suspension ecu (behind right side of dash)
Anti-lock brakes system
B12
B16
Bat
C10
Center junction block (behind instrument cluster)
Combination meter
Driver side junction block (behind left kick panel)
Engine room relay block (on left side of engine compt, forward of strut tower)
Far+
Far-
Fbr+
Fbr-
Front height control valve (at right frt corner of engine compt)
G100 (front of left front fender)
G101 (front of right front fender)
G202 (left side of dash)
G203 (right kick panel)
Grd
H/ctrl fuse 40a
Hard (ex02)
Height control compressor (at right front side of engine compt)
Height control exhaust valve (at right front strut tower)
Height indic
Hot at all times
I11
I12 (dash harn, right kick panel)
Junction connector j/c 18 (upper right end of dash)
Junction connector j/c 5 (upper left end of dash)
Junction connector j/c 8 (right kick panel)
Junction connector j/c 9 (right kick panel)
Pnk
Rar+
Rar-
Rbr+
Rbr-
Rear height control valve (under right rear of vehicle)
Red
Relay block 6 (under left headlight)
Right front height control sensor & acceleration sensor (at right front side of engine compt)
Right front suspension control actuator (at right front strut tower)
Right rear suspension control actuator (at right rear strut tower)
Rm+
Rm-
Sbr
Sgfr
Sgr
Sgrr
Slex
Slfl
Slfr
Slrl
Slrr

ENGINE PERFORMANCE

4.0L

4.0L, Engine Performance Wiring Diagrams (1 of 4) for Lexus LS 400 1998

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List of elements for 4.0L, Engine Performance Wiring Diagrams (1 of 4) for Lexus LS 400 1998:

(dash harn, lower right end of dash)
(eng harn, left side of eng)
(eng harn, left side of engine)
(eng harn, rear of engine)
(engine harn, left side of engine)
(engine harn, rear of engine)
(rear side of left cyl head)
(rear side of right cyl head)
(rear side of right cyl head) g117
A braided
Acis
Braided
Camshaft position sensor (left front of engine)
Cl-
Conn e13
Conn e14
Crankshaft position sensor (left front of engine)
E01
E02
E03
E10
E10 (engine harness, rear of engine)
E11
E12
E13
E14
E15
E16
E2g
Engine control module (right side of dash)
Evg
G112
G112 (rear side of left cyl head)
G117
Ge01
Htl
Htr
Igf1
Igf2
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
Injector 1
Injector 2
Injector 3
Injector 4
Injector 5
Injector 6
Injector 7
Injector 8
J/c 10 (right side of dash)
Knkl
Knkr
Knock sensor 1 (left center of engine)
Knock sensor 2 (left center of engine)
Left camshaft timing oil control valve (top left front of eng)
Left vvt sensor (left side of engine)
Mass airflow meter (in air intake duct)
Me01
Ne+
Ne-
Noise filter (top left rear of engine)
Ocv+
Ocv-
Oxl1
Oxr1
Pnk
Prg
Red
Right vvt sensor (right side of engine)
Tha
Throttle control motor & clutch (left front of eng)
Thw
Vpa
Vpa2
Vsv (acis) (top right side of engine)
Vsv (evap) (top left rear of engine)
Vta
Vta2
Vvl+
Vvl-
Vvr+
Vvr-

4.0L, Engine Performance Wiring Diagrams (2 of 4) for Lexus LS 400 1998

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List of elements for 4.0L, Engine Performance Wiring Diagrams (2 of 4) for Lexus LS 400 1998:

(dash harn, right kick panel)
(engine harn, e16
A19
Acc
Accel position sensor (top front of engine)
Am2
Braided
C12
Cir opn relay
Driver side junction block
E14
E14 (engine harn, rear of engine)
E16
Efi 1 fuse 20a
Efi 2 fuse 10a
Efi relay
Engine coolant temperature sensor (top right front of engine)
Engine room junction block
Fuel pump (in fuel tank)
Fuel pump relay
Fuel pump resistor (left front corner of engine compt)
G100 (front of left front fender)
G112 (rear side of left cyl head)
G407 (right side of back panel)
Heated oxygen sensor (bank 1 sensor 1) (on left side of engine, in exhaust manifold)
Heated oxygen sensor (bank 2 sensor 1) (on right side of engine, in exhaust manifold)
Hot at all times
Ht1
Ig2
Ign fuse 10a
Ignition switch
Instrument panel junction block
J/c 10 (right side of dash)
L10
L11
Left side of engine)
Lock
Oxl1
Oxr1
P/n
Park/neutral position switch (on transmission)
Pnk
Red
St2
Start
Starter fuse 7.5a
Starting/ charging system
Throttle position sensor (on throttle body)

4.0L, Engine Performance Wiring Diagrams (3 of 4) for Lexus LS 400 1998

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List of elements for 4.0L, Engine Performance Wiring Diagrams (3 of 4) for Lexus LS 400 1998:

(behind center of dash) a/c control assembly
(behind left side of dash)
(dash harn, upper right side of dash)
(engine harn, left side of engine)
(left side of dash)
(rear side of left cyl head)
(right instrument panel brace)
(under center console) transmission control switch
(w/o navigation)
A/t indicator light switch (integral to park/neutral position switch) (on transmission)
A20
B11
B18
B22
Body ecu (behind left side of dash)
C20
Center junction block
Combination meter
Cpu
D10
D17
Driver side junction block
E16
Ect pwr
Ect snow
Electronically controlled transmission pattern select switch
Engine oil level warning switch oil level (right front side of eng)
G112
G202
G206
Gauge fuse 10a
Heated oxygen sensor (bank 1 sensor 2) (on exhaust system, near catalytic converter)
Heated oxygen sensor (bank 2 sensor 2) (on exhaust system, near catalytic converter)
Hot at all times engine room junction block
Hot in on or start
Htl2
Htr2
I43
I44
Instrument panel junction block
J/c 10 (right side of dash)
J/c 3 (right kick panel)
Mpx+
Mpx-
Mpx1
Mpx2
Mt4
Mtl
Multi- display (w/navigation)
Nssd
Nssl
Obd fuse 7.5a
Oil temp
Oxl2
Oxr2
Ptnk
Pwr
Red
Snow
Stop-s fuse 7.5a
Vapor pressure sensor (left front corner of engine compt)
Vcc

4.0L, Engine Performance Wiring Diagrams (4 of 4) for Lexus LS 400 1998

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List of elements for 4.0L, Engine Performance Wiring Diagrams (4 of 4) for Lexus LS 400 1998:

(dash harn, left side of dash)
(dash harn, right kick panel)
(lower left side of dash) data link connector 3
(on transmission) o/d direct clutch speed sensor
(rear side of left cyl head)
(right instrument panel brace)
(top left side of engine) data link connector 1
+b1
+bm
A39
A40
Abs & trac & vsc ecu (right side of dash)
Acmg
Air conditioning system
B12
Bat
Batt
Ccs
Center junction block
Cl+
Code
Conn e11
Conn e12
Conn e15
Conn e16
Cruise control system
E18
Electronic suspension system
Electronically controlled transmission solenoid (in transmission)
Eng+
Eng-
Engine control module (behind right side of dash)
Engine room junction block
Eom
Etcs fuse 15a
Fpr
G112
G112 (rear side of left cyl head)
G202 (behind left side of dash)
G206
Generator
Grd
Hot at all times
Htr2
I13
I38
Igsw
Imld
Instrument panel junction block
J/c 10 (right side of dash)
J/c 18 (right side of dash)
J/c 4 (left side of dash)
J/c 5 (left side of dash)
Ksw
Lcki
Mol
Mpx1
Mpx2
Mrel
Nco+
Nco-
Neo
Ocr+
Ocr-
Oil
Ox1b
Oxl2
Oxr2
Pnk
Pre
Ptnk
Pwr
Red
Right camshaft timing oil control valve (top right front of eng)
Rspd
Rxck
Security indicator
Shift lock ecu
Sil
Sln+
Sln-
Slt+
Slt-
Slu+
Slu-
Snwi
Sp2+
Sp2-
Sta
Sti-
Stp
Tach
Tachometer
Tam
Tpc
Transponder key amplifier (left center of dash)
Trc+
Trc-
Txct
Unlock warning switch (behind left side of dash)
Vehicle speed sensor (on transmission)
Vsv (vapor pressure sensor) (left front corner of engine compt)

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for Lexus LS 400 1998

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List of elements for Back-up Lamps Wiring Diagram for Lexus LS 400 1998:

B17 (left trunk lid hinge)
B30
Back- up
G407 (right side of trunk rear panel)
Gauge fuse 10a
Hot in run or start
Instrument panel junction block (at rear of parking brake release lever)
Junction connector j/c 4 (upper left side of dash)
Left rear combination light (inner)
Park/neutral position switch (on transmission)
Right rear combination light (inner)

Exterior Lamps Wiring Diagram (1 of 2) for Lexus LS 400 1998

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List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Lexus LS 400 1998:

(behind combination meter) i9
(in driver's door) driver door ecu
(left side of dash)
A14
A20
Acc
Auto
Automatic light control sensor (behind upper left side of dash)
B14
B15
B16
B17
B19
B30
Bdr
Becu
Body ecu (behind left side of dash)
C11
C12
C17
C18
C20
Center junction block (behind instrument cluster)
Cltb
Clte
Clts
Computer data lines system
Cpub
Cty
Ctye
D fr door fuse 20a
D10
D11
D12
D13
D14
D15
D16
Dome fuse 10a
Driver side junction block (behind left kick panel)
E13
E9 (engine harn, left radiator support)
Engine room junction block (on left side of engine compt, forward of strut tower)
Fuse holder (behind left side of dash)
G100 (front of left front fender)
G101 (front of right front fender)
G202
G202 (behind combination meter)
G202 (left side of dash)
G407 (right side of trunk rear panel)
Gnd2
Grd
Grd1
Haz
Head
Headlight switch
Headlights system
Hot at all times
Hot in accy or run
Hot in run or start
Hrly
Instrument panel junction block (at rear of parking brake release lever)
J10
Junction connector j/c 5 (behind left side of dash)
Left front door open detection switch
Left front side marker light
Left license plate light
Left parking light
Mpx+
Mpx-
Mpx-b fuse 10a
Mpx1
Mpx2
Off
Pwr-ig fuse 15a
Radio 2 fuse 15a
Rco
Rda
Red
Right front side marker light
Right license plate light
Right parking light
Sig
Tail
Trly
Wireless door lock control ecu (behind right side of dash)

Exterior Lamps Wiring Diagram (2 of 2) for Lexus LS 400 1998

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List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Lexus LS 400 1998:

(behind combination meter)
(behind left kick panel) driver side junction block
(body harn, center rear of trunk)
(body harn, left rear wheel arch)
(body harn, left trunk lid hinge) b18
(body harn, left trunk lid hinge) b20
(left side of dash) junction connector j/c 7
A16
Alt fuse 120a
B16
B19 (body harn, left trunk lid hinge)
B21
B22 (body harn, center rear of trunk)
B24
B29
B30
B4 (body harn, center front of trunk)
Combination meter
Engine room junction block (on left side of engine compt, forward of strut tower)
Fusible link block (on left side of engine compt, forward of strut tower)
G100 (front of left front fender)
G101 (front of right front fender)
G206 (right side of instru- ment panel brace)
G407 (right side of trunk rear panel)
G905 (under right c-pillar)
Gauge fuse 10a
Grd
Haz fuse 10a
Hazard switch
Hi mount st
High mounted stop light
Hot at all times
Hot in run or start
I13
I14
Instrument panel junction block (at rear of parking brake release lever)
Interior lights
Junction connector j/c 5 (behind left side of dash)
Junction connector j/c 6 (left side of dash)
L12
Left
Left & right rear combination lights (inner)
Left front turn signal light
Left rear combination light (outer)
Left turn indic
Light failure sensor (at left side of luggage compartment)
Markr
Pwr
Right
Right front turn signal light
Right rear combination light (outer)
Right turn indic
Rr lights warning
Signal
Stop
Stop lp fuse 25a
Stop lts
Stop sw
Stop- light switch (brake pedal bracket)
Stp
Tail
Tail fuse 7.5a
Taillight control relay
Taillt pwr
Turn
Turn fuse 7.5a
Turn signal flasher (behind left side of dash)
Turn signal light switch

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 4) for Lexus LS 400 1998

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List of elements for Ground Distribution Wiring Diagram (1 of 4) for Lexus LS 400 1998:

(canada)
(engine harn, right radiator support) e7
(engine harness, behind left headlight) e8
(engine harness, right radiator support) e7
(w/ hid)
(w/o hid)
A/c single pressure switch
A34
Abs & trac & vsc actuator
Abs solenoid relay
Air suspension relay
Daytime running light relay 3
Daytime running light relay 4
E8 (engine harness, behind left headlight)
Efi relay
Engine coolant temperature switch
Engine hood courtesy switch
Engine main relay
Engine room junction block (on left side of engine compt, forward of strut tower)
Engine room relay block (on left side of engine compt, forward of strut tower)
Exhaust gas sensor
Front height control valve
G100 (front of left front fender)
G101 (front of right front fender)
Headlight cleaner motor
Headlight cleaner relay
Heater relay
Height control compressor
Height control exhaust valve
I8 (dash harness, left side of dash)
Left fog light
Left front side marker light
Left front turn signal light
Left high & low beam headlight
Left high & low beam headlight control ecu
Left high beam headlight
Left high beam headlight control ecu
Left parking light
Radiator fan motor & resistor
Relay block 6 (under left head- light)
Right fog light
Right front side marker light
Right front turn signal
Right high & low beam headlight
Right high & low beam headlight control ecu
Right high beam headlight
Right high beam headlight control ecu
Right parking light
Starter relay

Ground Distribution Wiring Diagram (2 of 4) for Lexus LS 400 1998

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List of elements for Ground Distribution Wiring Diagram (2 of 4) for Lexus LS 400 1998:

A/c control assembly
A/c magnetic clutch
A15
A21
A25
A27
A28
Airbag sensor assembly
B14
B33 (body harn, under right front seat)
C17
Cruise control switch
D21
D22
D31
Data link conn- ector 3
Data link connector 1
Data link connector 3
E13
E14
E15 (engine harn, rear of engine)
Engine control module
Front cigarette lighter
Front passenger's seat control switch
Front passenger's seat heater
G112 (left rear side of engine)
G117 (right rear side of engine)
G206 (left side of instrument panel brace)
G206 (right side of instrument panel brace)
G301 (under front passenger's seat)
Glove box light switch 1
Glove box light switch 2
Hazard switch
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)
I1 (dash harn, right kick panel)
I24 (dash harn, upper left side of dash)
I36 (dash harn, right of center air vents)
Ignition main relay
Igntion coil & ignitor 1
Igntion coil & ignitor 2
Igntion coil & ignitor 3
Igntion coil & ignitor 4
Igntion coil & ignitor 5
Igntion coil & ignitor 6
Igntion coil & ignitor 7
Igntion coil & ignitor 8
Instrument panel junction block (at rear of parking brake release lever)
Junction connector j/c 10 (lower right end of dash)
Junction connector j/c 16 (behind center air vents)
Junction connector j/c 3 (right kick panel)
Luggage compartment door opener switch
Multi- display
Nakamichi
Nca
Pioneer
R42
Radio & player
Rheostat & security indicator light
Right buckle switch & buckle light
Right rear door ecu
Stereo component amplifier
To g905 (diagram 4 of 4)
Vsc off switch
W/ navigation system

Ground Distribution Wiring Diagram (3 of 4) for Lexus LS 400 1998

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List of elements for Ground Distribution Wiring Diagram (3 of 4) for Lexus LS 400 1998:

(canada)
(left end of dash) junction connector j/c 6
(usa/w hid & canada)
A12
A16
A20
A31
A38
Abs & trac & vsc ecu
B1 (body harn, inside right front door)
B31 (body harn, right a-pillar)
Body ecu
Brake fluid level warning switch
C12
Combination meter
D12
D15
Data link conn- ector 2
Dimmer switch
Driver's door ecu
Engine oil level warning switch
F27
From junction connector j/c 6 (diagram 3 of 4)
Front personal light & garage opener
G202 (behind combination meter)
G202 (left side of dash)
G206 (right side of instrument panel brace)
Headlight beam level control ecu
I39 (dash harn, behind combination meter)
Inner mirror
Junction connector j/c 5 (upper left end of dash)
Junction connector j/c 6 (left end of dash)
Junction connector j/c 9 (right kick panel)
Left front suspension control actuator
Left remote control mirror
Left vanity light
Light control switch
Main daytime running light relay
Moon roof control relay
Moon roof control switch
Passenger's door ecu
Power shoulder belt anchor relay
Pps ecu
Right front suspension control actuator
Right remote control mirror
Right shoulder belt adjust switch
Right vanity light
Steering sensor
Theft deterrent horn
Tilt & telescopic ecu
To g203 (diagram 4 of 4)
To junction connector j/c 6 (diagram 3 of 4)
Turn signal flasher
Turn signal switch
Unlock warning switch & key interlock solenoid
W/ memory
W/o memory
Washer level switch
Wiper & washer switch
Wiper motor
Wireless door lock control ecu

Ground Distribution Wiring Diagram (4 of 4) for Lexus LS 400 1998

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List of elements for Ground Distribution Wiring Diagram (4 of 4) for Lexus LS 400 1998:

(usa/w hid & canada)
(w/ air ride)
(w/ memory)
(w/o air ride)
A14
A39
Abs & trac & vsc ecu
Air suspension ecu
B11
B16 (body harness, right rear door sill)
B29 (body harn, base of left c-pillar)
B3 (body harn, inside right rear door)
B30 (body harn, left side of trunk lid)
B36 (body harness, left side of left front seat back)
Blower controller
C20
C26
Cellular phone
Driver's power seat control switch
Driver's power seat front vertical motor
Driver's power seat rear vertical motor
Driver's power seat recline motor
Driver's power seat slide motor
Driver's seat heater
E16
Electronically controlled transmission pattern select switch
Electronically controlled transmission pattern select switch & height control switch
Engine control module
From g206 (diagram 3 of 4)
From g301 (diagram 2 of 4)
Fuel lid opener solenoid
Fuel pump
G203 (right kick panel)
G300 (under driver's seat)
G407 (right side of trunk rear panel)
G905 (under right c-pillar)
Head rest position sensor
Headlight beam level control ecu
High mounted stop light
Junction connector j/c 18 (upper right end of dash)
Left buckle switch & buckle light
Left license plate light
Left rear cigarette lighter
Left rear combination light
Left rear door ecu
Left rear interior light noise filter
Left rear personal light
Left rear suspension control actuator
Light failure sensor
Luggage compartment door key unlock switch
Memory) (w/
Navigation ecu
P10
Power outlet
Power seat ecu
Rear height control valve
Right license plate light
Right rear abs speed sensor & pad wear indicator
Right rear cigarette lighter
Right rear combination light
Right rear door ecu
Right rear personal light
Right rear suspension control actuator
Shift lock ecu
T17
Telephone transceiver & speaker relay
Transponder key amplifier

HEADLIGHTS

Headlamps Wiring Diagram, with DRL (1 of 2) for Lexus LS 400 1998

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List of elements for Headlamps Wiring Diagram, with DRL (1 of 2) for Lexus LS 400 1998:

(behind combination meter) i9
(in driver's door) driver door ecu
(left side of dash)
A14
A20
Acc
Auto
Automatic light control sensor (behind upper left side of dash)
B14
B15
B16
B17
B19
B22
Bdr
Becu
Body ecu (behind left side of dash)
C11
C12
C17
C18
C20
C22
Center junction block (behind instrument cluster)
Cltb
Clte
Clts
Computer data lines system
Cpub
Cty
Ctye
D fr door fuse 20a
D10
D11
D12
D13
D14
D15
D16
Dimmer switch
Diode (drl) (behind left kick panel)
Dome fuse 10a
Driver side junction block (behind left kick panel)
E10
E13
Engine room junction block (on left side of engine compt, forward of strut tower)
Exterior lights system
Flash
Fog lights
Foglight switch
Fuse holder (behind left side of dash)
G202
G202 (behind combination meter)
G202 (left side of dash)
Grd
Grd1
Grd2
Head
Headlight switch
Headlights system (headlight beam level control)
High
Hot at all times
Hot in accy or run
Hot in run or start
Hrly
Instrument panel junction block (at rear of parking brake release lever)
J10
Junction connector j/c 5 (upper left end of dash)
Left front door open detection switch
Low
Mpx+
Mpx-
Mpx-b fuse 10a
Mpx1
Mpx2
Off
Pwr-ig fuse 15a
Radio 2 fuse 15a
Rco
Rda
Red
Sig
Tail
Trly
Wiper/ washer system (headlight cleaner switch)
Wireless door lock control ecu (behind right side of dash)

Headlamps Wiring Diagram, with DRL (2 of 2) for Lexus LS 400 1998

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List of elements for Headlamps Wiring Diagram, with DRL (2 of 2) for Lexus LS 400 1998:

(engine harn, left radiator support) e3
(front of right front fender)
(on left side of engine compt, forward of strut tower) engine room relay block
C11
Center junction block (behind instrument cluster)
Combination meter
Daytime running light relay 3 & 4 (at right front corner of engine compt)
Driver side junction block (behind left kick panel)
Drl 2 relay
Drl fuse 10a
E1 (engine harn, right radiator support)
E19
E2 (engine harness, right radiator support)
E21
Ecu-b fuse 7.5a
Ecu-ig fuse 10a
Engine room junction block (on left side of engine compt, forward of strut tower)
Fog light relay
Fr fog fuse 15a
Fusible link block (on left side of engine compt, forward of strut tower)
G100 (front of left front fender)
G101
G202 (left side of dash)
G206 (right side of instrument panel brace)
H-lp l lwr fuse 15a
H-lp l upr fuse 10a
H-lp r lwr fuse 15a
H-lp r upr fuse 10a
Head lp relay
Hi beam indic
Hot at all times
Hot in run or start
I10 (dash harn, left side of dash)
Instrument panel junction block (at rear of parking brake release lever)
J15
Junction connector j/c 6 (left end of dash)
Junction connector j/c 9 (right kick panel)
K10
Left fog light
Left high beam headlight control ecu
Left low & hi beam headlight control ecu
Main daytime running light relay (behind right end of dash)
Main fuse 80a
Parking brake switch (behind left side of dash)
Pnk
Red
Right fog light
Right high beam headlight control ecu
Right low & hi beam headlight control ecu
Starting/charging system

Headlamps Wiring Diagram, without DRL (1 of 2) for Lexus LS 400 1998

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List of elements for Headlamps Wiring Diagram, without DRL (1 of 2) for Lexus LS 400 1998:

(behind combination meter) i9
(in driver's door) driver door ecu
(left side of dash)
A14
A20
Acc
Auto
Automatic light control sensor (behind upper left side of dash)
B14
B15
B16
B17
B19
Bdr
Becu
Body ecu (behind left side of dash)
C11
C12
C17
C18
C20
C22
Center junction block (behind instrument cluster)
Cltb
Clte
Clts
Computer data lines system
Cpub
Cty
Ctye
D fr door fuse 20a
D10
D11
D12
D13
D14
D15
D16
Dimmer switch
Dome fuse 10a
Driver side junction block (behind left kick panel)
E10
E13
Engine room junction block (on left side of engine compt, forward of strut tower)
Exterior lights system
Flash
Fog lights
Foglight switch
Fuse holder (behind left side of dash)
G202
G202 (behind combination meter)
G202 (left side of dash)
Grd
Grd1
Grd2
Head
Headlight switch
Headlights system (headlight beam level control) (w/ hid only)
High
Hot at all times
Hot in accy or run
Hot in run or start
Hrly
Instrument panel junction block (at rear of parking brake release lever)
J10
Junction connector j/c 5 (upper left end of dash)
Left front door open detection switch
Low
Mpx+
Mpx-
Mpx-b fuse 10a
Mpx1
Mpx2
Off
Pwr-ig fuse 15a
Radio 2 fuse 15a
Rco
Rda
Red
Short connector s24/s25 (upper left end of dash)
Sig
Tail
Trly
Wireless door lock control ecu (behind right side of dash)

Headlamps Wiring Diagram, without DRL (2 of 2) for Lexus LS 400 1998

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List of elements for Headlamps Wiring Diagram, without DRL (2 of 2) for Lexus LS 400 1998:

(front of right front fender)
(on left side of engine compt, forward of strut tower) engine room relay block
A16
B17
C17
Center junction block (behind instrument cluster)
Combination meter
Dimmer relay
Engine room junction block (on left side of engine compt, forward of strut tower)
Fog light relay
Fr fog fuse 15a
Fusible link block (on left side of engine compt, forward of strut tower)
G100 (front of left front fender)
G101
G101 (front of right front fender)
G202 (left side of dash)
H-lp l lwr fuse 15a
H-lp l upr fuse 10a
H-lp r lwr fuse 15a
H-lp r upr fuse 10a
Head ind
Head lp relay
Hi beam indic
Hot at all times
I39
Instrument panel junction block (at rear of parking brake release lever)
J15
Junction connector j/c 6 (left end of dash)
Left fog light
Left high & low beam headlight
Left high beam head- light
Left high beam headlight control ecu
Left low & hi beam headlight control ecu
Main fuse 80a
Mpx-b fuse 10a
Red
Right fog light
Right high & low beam headlight
Right high beam head- light
Right high beam headlight control ecu
Right low & hi beam headlight control ecu
Short pin
W/ hid
W/o hid

Headlamps Leveling Wiring Diagram for Lexus LS 400 1998

Ottieni l'accesso a tutti gli schemi elettrici dell'auto

List of elements for Headlamps Leveling Wiring Diagram for Lexus LS 400 1998:

(left side of dash)
(right kick panel)
(right kick panel) i12
Anti-lock brakes system
Auto
Body ecu (behind left side of dash)
C19
C22
Chg-
Driver side junction block (behind left kick panel)
E10
Engine room junction block (on left side of engine compt, forward of strut tower)
Fusible link block (on left side of engine compt, forward of strut tower)
G202
G203 (right kick panel)
Hdlp
Head
Head lp relay
Headlight beam level control ecu (behind right side of dash)
Headlight switch
Hot at all times
Hot in run or start
Hrly
I11
Instrument cluster system
Instrument panel junction block (at rear of parking brake release lever)
Junction connector j/c 18 (upper right end of dash)
Junction connector j/c 5 (upper left end of dash)
Left headlight beam level control actuator (left headlight assembly)
Lh 1
Lh 2
Lh 3
Lh 4
Main fuse 80a
Off
Pnk
Pwr-ig fuse 15a
Red
Rh 1
Rh 2
Rh 3
Rh 4
Right front height control sensor & acceleration sensor (at right front side of engine compt)
Right headlight beam level control actuator (right headlight assembly)
Right rear height control sensor (under right rear of vehicle)
Sbf
Sgf
Shf
Shr
Spdl
Spdr
Starting/charging system
Tail
W/ air suspension
W/o air suspension
Wng

HORN

Horn Wiring Diagram for Lexus LS 400 1998

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List of elements for Horn Wiring Diagram for Lexus LS 400 1998:

A14
A15
A16
Body ecu (behind left side of dash)
Combination switch
Driver side j/b (behind left kick panel)
Engine room j/b (on left side of engine compt, forward of strut tower)
Horn
Horn fuse 10a
Horn relay
Horn switch
Hot at all times
K11
Left horn
Right horn

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram for Lexus LS 400 1998

Ottieni l'accesso a tutti gli schemi elettrici dell'auto

List of elements for Instrument Cluster Wiring Diagram for Lexus LS 400 1998:

(body harness, right rear door sill)
(dash harn, behind combination meter)
A/c system
A10
A11
A12
A13
A14
A15
A16
Abs ind
Anti-lock brake system
B10
B11
B12
B13
B14
B15
B16
B17
B18
B20
Body ecu (behind left side of dash)
Brake ind
C16
C17
C20
Center junction block
Charge ind
Combination meter
Cruise ind
D10
D11
D12
Dome fuse 10a
Driver's side junction block
Electronic suspension system
Engine controls system
Engine oil pressure switch (left front of engine)
Engine room junction block
Exterior lights system
Front pad wear indicator
Fuel gauge
Fuel ind
Fuel sender (in fuel tank)
G202 (behind combination meter)
G202 (left side of dash)
G905 (under right c-pillar)
Gauge fuse 10a
Head ind (usa)
Headlight system
Height ind
High beam ind
Hot at all times
Hot in run or start
I39
Instrument panel junction block
J/c 5 (upper left end of dash)
J10
Left turn ind
Mpx-b fuse 10a
Multi- display
Navigation & electronic suspension systems (speed sig) anti-lock brake system
Nvm
Odo/trip
Odometer/ tripmeter
Pwr ind
Rear pad wear indicator
Red
Reset
Rheostat
Right turn ind
Seat belt ind
Slip ind
Snow ind
Solid state
Speedometer
Srs ind
Steering control switch
Tacho- meter
Tail ind
Trip switch
Vsc off ind
Warning system
Washer level switch (left front of engine compt)
Water temp gauge

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 3) for Lexus LS 400 1998

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List of elements for Courtesy Lamps Wiring Diagram (1 of 3) for Lexus LS 400 1998:

(base of left c-pillar) b25
(center of windshield header) b32
A14
A20
Acc
B10
B13
B14
B16
B29
B31
Bdr
Becu
Body ecu (behind left side of dash)
C10
C13
Computer data lines system
D10
D15
D16
Diode (left rear interior light) (near base of left c-pillar)
Diode (mpx body 1) (at left side of trunk, above wheelwell)
Diode (mpx body 2) (at left side of trunk, above wheelwell)
Driver side junction block (behind left kick panel)
Front personal light
G202 (left side of dash)
G206 (right side of instrument panel brace)
G407 (right side of trunk rear panel)
Grd1
Grd2
Ignition key cylinder light
Ile
Junction connector j/c 17 (under left rear seat)
Left rear door courtesy light
Left rear interior light
Left rear personal light
Left step light
Left vanity light
Lgcy
Luggage compartment light switch (luggage compartment)
Mpx+
Mpx-
Mpx1
Mpx2
Noise filter (left rear interior light) (near base of left c-pillar)
Rco
Rda
Red
Right step light
Right vanity light
Sig

Courtesy Lamps Wiring Diagram (2 of 3) for Lexus LS 400 1998

Ottieni l'accesso a tutti gli schemi elettrici dell'auto

List of elements for Courtesy Lamps Wiring Diagram (2 of 3) for Lexus LS 400 1998:

(behind combination meter) i9
(body harn, below right c-pillar)
(body harn, right rear door sill)
(body harn, under right rear seat)
(in driver's door) driver door ecu
(under right c-pillar)
A10
A12
A15
B10
B14
B15
B16
B17
B19
B20
B37
Bdr
C12
C17
C18
C20
Center junction block (behind instrument cluster)
Computer data lines system
Cpub
Cty
Ctyb
Ctye
Cyl
D fr door fuse 20a
D10
D11
D12
D18
Diode (right rear interior light) (near base of right c-pillar)
Dome fuse 10a
Driver side junction block (behind left kick panel)
E13
Engine room junction block (on left side of engine compt, forward of strut tower)
Exterior lights system (high mounted stoplight)
Fuse holder (behind left side of dash)
G202 (behind combination meter)
G206 (right side of instrument panel brace)
G905
Grd
Hot at all times
Hot in accy or run
Hot in run or start
I6 (dash harn, left end of dash)
Instrument panel junction block (at rear of parking brake release lever)
J10
Junction connector j/c 9 (right kick panel)
Left front door courtesy light
Left front door lock control motor, door unlock detection switch & door open detection switch
Lsw
Lswe
Luggage compartment light
Mpx-b fuse 10a
Mpx1
Mpx2
Noise filter (stoplight & right rear interior light) (near base of right c-pillar)
Open
Pwr-ig fuse 15a
Radio 2 fuse 15a
Rco
Rda
Red
Right rear door courtesy light
Right rear interior light
Right rear personal light
Sig
To center junction block (diagram 3 of 3)
Unlk
Wireless door lock control ecu (behind right side of dash)

Courtesy Lamps Wiring Diagram (3 of 3) for Lexus LS 400 1998

Ottieni l'accesso a tutti gli schemi elettrici dell'auto

List of elements for Courtesy Lamps Wiring Diagram (3 of 3) for Lexus LS 400 1998:

A12
A18
B10
B12
B14
B15
B17
B19
Bdr
C14
C15
Center junction block (behind instrument cluster)
Computer data lines system
Cpub
Cty
Ctyb
Ctye
Cyl
D rr door fuse 20a
D11
From engine room junction block (diagram 2 of 3)
From instrument panel junction block (diagram 2 of 3)
Fuse holder (behind left side of dash)
G206 (right side of instrument panel brace)
G300 (under driver's seat)
G301 (under front passenger's seat)
G905 (under right c-pillar)
Grd
Hot at all times
Instrument panel junction block (at rear of parking brake release lever)
K12
Keye
Kul
Left rear door courtesy light
Left rear door ecu (in left rear door)
Left rear door lock control motor, door unlock detection switch & door open detection switch
Lock
Lsw
Lswe
Mpx1
Mpx2
Open
P fr door fuse 20a
P rr door fuse 20a
Passenger door ecu (in right front door)
Right front door courtesy light
Right front door key lock & unlock switch
Right front door lock control motor, door unlock detection switch & door open detection switch
Right rear door courtesy light
Right rear door ecu (in right rear door)
Right rear door lock control motor, door unlock detection switch & door open detection switch
Rrlp
Sig
Unlk

Instrument Illumination Wiring Diagram for Lexus LS 400 1998

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List of elements for Instrument Illumination Wiring Diagram for Lexus LS 400 1998:

(behind left kick panel) driver side junction block
(dash harn, right side of radio)
A/c control assembly
A17
Acan
Anti-theft system
B18
C16
C18
Combination meter
D10
E14
Electronically controlled transmission pattern select switch (height control switch)(w/ air susp)
Electronically controlled transmission pattern select switch (w/o air susp)
Front cigarette lighter
G206 (right side of instrument panel brace)
G300 (under driver's seat)
G301 (under front passenger's seat)
G905 (under right c-pillar)
Gauge fuse 10a
Glove box light 1
Glove box light 2
Glove box light switch 1
Glove box light switch 2
Grd
Hazard switch
Hot in park or head
Hot in start or run
I24
I36
I37
Indic
Instrument panel junction block (at rear of parking brake release lever)
Junction connector j/c 14 (behind upper center of dash)
Junction connector j/c 15 (behind center air vents)
Junction connector j/c 16 (behind upper center of dash)
Left rear cigarette lighter
Left rear door ecu (in left rear door)
Multi-display
Panel fuse 7.5a
Radio & player
Remote control mirror switch
Rheostat (security indicator light)
Right rear cigarette lighter
Right rear door ecu (in right rear door)
Seat heater switch
Transmission control switch
Vsc off & head- light cleaner switch
Whe1

MEMORY SYSTEMS

Memory System Wiring Diagrams (1 of 2) for Lexus LS 400 1998

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List of elements for Memory System Wiring Diagrams (1 of 2) for Lexus LS 400 1998:

(below left rear seat) j/c 17
(dash harn, behind combination meter)
(left side of
Acc
B17
B19
Bdr
Becu
Body ecu (behind left side of dash)
C12
C17
Center junction block (behind instrument cluster)
Computer data lines system
Cpub
Cty
Ctye
D fr door fuse 20a
D10
D11
D12
De2
Dmfr
Dmhr
Dmvr
Down
Driver door ecu (in driver's door)
Driver side junction block (behind left kick panel)
Driver's shoulder belt adjust switch
Driving position and memory control switch
Dsdn
Dsup
Dvc
E13
E15
Engine room junction block
F27
F28
F38
Front door open detection switch
Fuse holder (behind left side of dash)
G202 (left side of dash)
G206
G206 (left side of instrument panel)
Gnd
Gnd2
Hot at all times
Hot in acc or on
Hot in on or start
Hsrl
Hssr
I6 (dash harn, left end of dash)
Instrument
Instrument panel junction block
Left
Left remote control mirror
Mpx+
Mpx-
Mpx-b fuse 10a
Mpx1
Mpx2
Mswe
No 1
No 2
Operation switch
P fr door fuse 20a
Panel)
Passenger door ecu (in right front door)
Pe2
Pm+r
Pmhr
Pmvr
Pnk
Pvc
Pwr-ig fuse 15a
Radio 2 fuse 15a
Red
Remote control mirror switch
Right
Right remote control mirror
Select switch
Set
Sig
Vsrl
Vssr

Memory System Wiring Diagrams (2 of 2) for Lexus LS 400 1998

Ottieni l'accesso a tutti gli schemi elettrici dell'auto

List of elements for Memory System Wiring Diagrams (2 of 2) for Lexus LS 400 1998:

(behind left side of dash) telescopic position sensor and motor
(dash harn, behind steering column)
(under driver's seat)
B34
B35
B35 (body harn, under left front seat)
B36
Bem+
Bem-
Bes
C20
Computer data lines system
Dome fuse 10a
Driver side junction block (behind left kick panel)
Driver's power seat switch
Driver's seat front vertical motor
Driver's seat headrest motor
Driver's seat lumbar motor
Driver's seat rear vertical motor
Driver's seat reclining motor
Driver's seat slide control motor
Ecub
Ecue
Engine room junction block
Fdwn
Frt vert down
Frt vert up
Frv+
Frv-
Fup
G202 (behind combi- nation meter)
G202 (left side of dash)
G300
Gnd
Hdwn
Head down
Head up
Headrest position sensor
Hot at all times
Hup
I12
I18
Instrument panel junction block
J10
Lumbar front
Lumbar rear
Mirb
Mire
Mirg
Mpx1
Mpx2
Msw
P10
P11
Power seat ecu (under driver's seat)
Pvcc
Pwr fuse 30a
Rcl+
Rcl-
Rclf
Rclr
Rdwn
Rear vert down
Rear vert up
Recline front
Recline rear
Red
Rrv+
Rrv-
Rup
Seat fr fuse 30a
Sgnd
Shoulder belt anchor motor
Sld+
Sld-
Sldf
Sldr
Slide front
Slide rear
Ssfv
Ssrh
Ssrr
Ssrs
Ssrv
Sysb
Tem+
Tem-
Tes
Tilt & telescopic ecu (behind left side of dash)
Tilt and telescopic unit
Tilt position sensor (behind left side of dash)
Tim+
Tim-
Tis
Vc2
Vc3
Vcs

NAVIGATION

Navigation Wiring Diagram for Lexus LS 400 1998

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List of elements for Navigation Wiring Diagram for Lexus LS 400 1998:

(behind center air vents) junction connector j/c 16
+b1
Acc
Aui+
Aui-
Auo+
Auo-
B17
B29
Braided
C 1995 vftc
C20
Computer data lines system
Crt fuse 15a
Dome fuse 10a
Driver side junction block (behind left kick panel)
E12
Engine room junction block (on left side of engine compt, forward of strut tower)
F10
Fl+
Fl-
G12
G206 (right side of instrument panel brace)
G407 (right side of trunk rear panel)
Grd1
Hot at all times
Hot in accy or run
Illum
Instrument cluster system
Instrument panel junction block (at rear of parking brake release lever)
Interior lights system
J10
Junction connector j/c 12 (behind center air vents)
Junction connector j/c 17 (under left rear seat)
Junction connector j/c 4 (top left end of dash)
Left front door speaker
Mpx1
Mpx2
Multi-display
Mute
N-mu
Navigation ecu (at left rear corner of luggage compt)
Pbew
Pnk
Radio & player
Radio 1 fuse 20a
Radio 2 fuse 15a
Red
Spd (vss)
Stereo component amplifier (under front passenger's seat)
Sync
Tx+
Tx-
Tx1+
Tx1-

PASSIVE RESTRAINTS

Electric Tension Reducer Wiring Diagram for Lexus LS 400 1998

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List of elements for Electric Tension Reducer Wiring Diagram for Lexus LS 400 1998:

Center j/b
Driver side j/b
G300 (under driver's seat)
G301 (under front passenger's seat)
Hot in run or start
Instrument panel j/b
J/c 17 (below left rear seat)
J/c 17 (foward of left rear wheelwell)
Left buckle switch
Left tension reducer solenoid
Pwr-ig fuse 15a
Right buckle switch
Right tension reducer solenoid

Power Shoulder Belt Anchorage Wiring Diagram for Lexus LS 400 1998

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List of elements for Power Shoulder Belt Anchorage Wiring Diagram for Lexus LS 400 1998:

Bem+
Bem-
Dsw
F11
Fuel opn fuse 10a
G206 (right side of instrument panel brace)
Hot at all times
Instrument panel j/b
J/c 9 (right kick panel)
Power shoulder belt anchor relay (behind right side of dash)
Right shoulder belt adjust switch
Right shoulder belt anchor motor
Usw

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 2) for Lexus LS 400 1998

Ottieni l'accesso a tutti gli schemi elettrici dell'auto

List of elements for Power Distribution Wiring Diagram (1 of 2) for Lexus LS 400 1998:

(canada)
(front of left front fender) g100
(on left side of engine compt, forward of strut tower) engine room junction block
(on left side of engine compt, forward of strut tower) engine room relay block
(usa)
Abs fuse 60a
Alt fuse 120a
Alt-s fuse 7.5a
Am1 fuse 40a
Am2 fuse 30a
Anti-lock brakes system
Anti-lock brakes, instrument cluster systems
Battery
Body computer, door locks, instrument cluster, power windows, memory systems
Body computer, horns systems
Cellular phones system
Cooling fans system
Crt fuse 15a
Defog fuse 50a
Defog relay
Defogger system
Dimmer relay (usa)
Dome fuse 10a
Drl 2 relay (canada)
Drl fuse (can) 10a
Ecu-b fuse 7.5a
Efi 1 fuse 20a
Efi 2 fuse 10a
Efi relay
Electronic suspension system
Engine controls system
Engine main relay
Engine room junction block (on left side of engine compt, forward of strut tower)
Etcs fuse 15a
Exterior lights system
Fr s/htr fuse 20a
From e engine room junction block (diagram 1 of 2)
From engine room junction block (diagram 1 of 2)
From f engine room junction block (diagram 1 of 2)
From instrument panel junction block (diagram 2 of 2)
Fusible link block (on left side of engine compt, forward of strut tower)
H/ctrl fuse 40a
Haz fuse 10a
Head lamp relay
Headlights system
Heater fuse 50a
Heater relay
Horn fuse 10a
J10
K10
L lwr h-lp fuse 15a
L upr h-lp fuse 10a
Main fuse 80a
Mir htr fuse 15a
Mpx-b fuse 10a
Navigation system
Noise filter (rear window defogger)
Obd fuse 7.5a
R lwr h-lp fuse 15a
R upr h-lp fuse 10a
Radio 1 fuse 20a
Rdi fan fuse 30a
Red
Seats system
Short pin
Sound systems
St fuse 30a
Starter relay
Starting/ charging system
Tel fuse 15a
To engine room junction block (diagram 1 of 2)
To engine room relay block (diagram 1 of 2)
To ignition switch (diagram 2 of 2)
To instrument panel junction block (diagram 2 of 2)

Power Distribution Wiring Diagram (2 of 2) for Lexus LS 400 1998

Ottieni l'accesso a tutti gli schemi elettrici dell'auto

List of elements for Power Distribution Wiring Diagram (2 of 2) for Lexus LS 400 1998:

(at rear of parking brake release lever) instrument panel junction block
(dash harn, behind combination meter) i5
(left side of instrument panel brace) g206
A/c fuse 7.5a
Acc
Air air conditioning conditioning system system
Air conditioning, body computer, sound, navigation, shift interlock systems
Air sus fuse 20a
Anti-lock brakes, starting/charging, electronic power steering, cruise control systems
B29
Body computer, wiper/ washer systems
D fr door fuse 20a
D rr door fuse 20a
D11
Door locks, power windows systems
Ecu-ig fuse 10a
Electronic suspension system
Engine controls, cooling fans, air conditioning systems
Exterior lights system
Exterior lights, cruise control systems
Fog light relay
Fr cig fuse 15a
Fr fog fuse 15a
From fusible link block (diagram 1 of 2)
From fusible link block a (diagram 1 of 2)
From instru- h ment panel junction block (diagram 2 of 2)
Front cigarette lighter
Fuel opn fuse 10a
Fuse holder (behind left side of dash)
G206 (right side of instrument panel brace)
G407 (right side of trunk rear panel)
G905 (under right c-pillar)
Gauge fuse 10a
Heater fuse 10a
I10
I12
I13
I14
I7 (dash harn, behind steering column)
Ign fuse 10a
Ignition main relay
Ignition switch
Instrument cluster, anti- lock brakes, computer data lines, engine controls, exterior lights, transmissions, shift interlock systems
Instrument panel junction block (at rear of parking brake release lever)
Interior lights, body computer, headlights, door locks, power windows, seats, power tops systems
Interior lights, door locks, power windows systems
J11
J16
Junction connector j/c 16 (behind center air vents)
Junction connector j/c 4 (upper left end of dash)
K12
L11
L12
Left rear cigarette lighter
Lock
P fr door fuse 20a
P rr door fuse 20a
Panel fuse 7.5a
Pnk
Power tops system
Pwr fuse 30a
Pwr-ig fuse 15a
Radio 2 fuse 15a
Red
Right rear cigarette lighter
Rr cig fuse 15a
Run
Seat fr fuse 30a
Seats system
Start
Starter fuse 7.5a
Starting/ charging system
Stop lp fuse 25a
Stop-s fuse 7.5a
Stoplight switch (brake pedal bracket)
Tail fuse 7.5a
Taillight control relay
To engine room junction block (diagram 1 of 2)
To instru- ment panel junction block (diagram 2 of 2)
Trunk, tailgate, fuel doors system
Turn fuse 7.5a
Washer fuse 20a
Wiper fuse 20a
Wiper/ washer system

POWER DOOR LOCKS

Keyless Entry & Anti-Theft Wiring Diagram (1 of 2) for Lexus LS 400 1998

Ottieni l'accesso a tutti gli schemi elettrici dell'auto

List of elements for Keyless Entry & Anti-Theft Wiring Diagram (1 of 2) for Lexus LS 400 1998:

(behind combination meter) i9
(in driver's door) driver door ecu
A10
A13
A14
A15
A17
A20
Acan
Acc
B13
B14
B15
B16
B17
B19
Bdr
Becu
Body ecu (behind left side of dash)
Bzr
Bzr2
C10
C12
C17
C18
C20
Center junction block (behind instrument cluster)
Computer data lines system
Cpub
Cty
Ctye
D fr door fuse 20a
D10
D11
D12
D15
D16
D18
Dome fuse 10a
Driver side junction block (behind left kick panel)
E13
Engine room junction block (on left side of engine compt, forward of strut tower)
Exterior lights system
Fuse holder (behind left side of dash)
G202 (behind combination meter)
G202 (left side of dash)
G206 (right side of instrument panel brace)
G407 (right side of trunk rear panel)
Grd
Grd1
Grd2
Haz
Hdcy
Headlights system
Horn
Horns system
Hot at all times
Hot in accy or run
Hot in run or start
Hrly
I6 (dash harn, left end of dash)
Ind
Instrument panel junction block (at rear of parking brake release lever)
J10
Junction connector j/c 9 (right kick panel)
Keye
Keyless buzzer (at left rear corner of engine compt)
Keyless buzzer on/off switch
Ksw
Kul
Left front door key lock & unlock switch
Left front door lock control motor, door unlock detection switch & door open detection switch
Left front door lock control switch (power window master switch)
Lock
Lsw
Lswe
Luggage compartment door key unlock switch
Mpx+
Mpx-
Mpx-b fuse 10a
Mpx1
Mpx2
Mul
Open
Pnk
Pwe
Pwr-ig fuse 15a
Pws
Radio 2 fuse 15a
Rco
Rda
Red
Sig
Theft deterrent horn (at right rear corner of engine compt)
Tkul
To center junction block (diagram 2 of 2)
Trly
Unlk
Wireless door lock control ecu (behind right side of dash)

Keyless Entry & Anti-Theft Wiring Diagram (2 of 2) for Lexus LS 400 1998

Ottieni l'accesso a tutti gli schemi elettrici dell'auto

List of elements for Keyless Entry & Anti-Theft Wiring Diagram (2 of 2) for Lexus LS 400 1998:

(left side of dash)
(right side of instrument panel brace) g206
A12
A18
B14
B15
B16
B17
B19
Bdr
C14
C15
Center junction block (behind instrument cluster)
Computer data lines system
Cpub
Cty
Ctye
D rr door fuse 20a
D11
Dle
Engine hood courtesy switch (engine compartment)
From engine room junction block (diagram 1 of 2)
From instrument panel junction block (diagram 1 of 2)
Fuse holder (behind left side of dash)
G101 (front of right front fender)
G202
G206 (right side of instrument panel brace)
G300 (under driver's seat)
G301 (under front passenger's seat)
G905 (under right c-pillar)
Grd
Hot at all times
Instrument panel junction block (at rear of parking brake release lever)
Junction connector j/c 16 (behind center air vents)
K10
K12
Keye
Kul
Left rear door ecu (in left rear door)
Left rear door lock control motor, door unlock detection switch & door open detection switch
Lock
Lsw
Lswe
Mpx1
Mpx2
Mul
Not used
Open
P fr door fuse 20a
P rr door fuse 20a
Passenger door ecu (in right front door)
Pnk
Rheostat & security indicator light
Right front door key lock & unlock switch
Right front door lock control motor, door unlock detection switch & door open detection switch
Right front door lock control switch
Right rear door ecu (in right rear door)
Right rear door lock control motor, door unlock detection switch & door open detection switch
Sig
System engine controls
Unlk
Unlock warning switch (behind left side of dash)

POWER MIRRORS

Electrochromic Mirrors Wiring Diagram for Lexus LS 400 1998

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List of elements for Electrochromic Mirrors Wiring Diagram for Lexus LS 400 1998:

A12
A13
A20
B21
Center junction block (behind instrument cluster)
Ec+
Ec-
G206 (right side of instrument panel brace)
Gnd
Hot in on or start
Inside rear view mirror
Instrument panel junction block (at rear of parking brake release lever)
Left remote control mirror
Pwr-ig fuse 15a
Right remote control mirror

POWER SEATS

Heated Seats Wiring Diagram for Lexus LS 400 1998

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List of elements for Heated Seats Wiring Diagram for Lexus LS 400 1998:

(front of left front fender)
Alt fuse 120a
Driver's seat heater
Engine main relay
Engine room junction block (on left side of engine compt, forward of strut tower)
Fr s/htr fuse 15a
Front passenger's seat heater
Fusible link block (on left side of engine compt, forward of strut tower)
G100
G206 (left side of instrument panel brace)
G300 (under driver's seat)
G301 (under front passenger's seat)
Heater fuse 10a
Hot at all times
Hot in on or start
Instrument panel junction block (at rear of parking brake release lever)
J/c 16 (behind center air vents)
J11
Left
Right
Seat heater switch
Solid state

Power Seats Wiring Diagram for Lexus LS 400 1998

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List of elements for Power Seats Wiring Diagram for Lexus LS 400 1998:

(in
Down
Driver's head rest control motor (in driver's seatback)
Driver's lumbar support control motor (in driver's seatback)
Driver's power seat control switch
Driver's rear vertical control motor (under driver's seat)
Driver's reclining control motor (under driver's seat)
Driver's slide control motor (under driver's seat)
Drivers front vertical control motor (under driver's seat)
Front
Front passenger's power seat control switch
Front vertical
G300 (under driver's seat)
G301 (under front passenger's seat)
Head rest
Hot at all times
I12
I23 (dash harn, behind combination meter)
Instrument panel junction block (at rear of parking brake release lever)
Lumbar support
Passenger's front vertical control motor (under passenger's seat)
Passenger's head rest control motor
Passenger's lumbar support control motor
Passenger's rear vertical control motor (under passenger's seat)
Passenger's reclining control motor (under passenger's seat)
Passenger's seatback)
Passenger's slide control motor (under passenger's seat)
Rear
Rear vertical
Reclining
Red
Seat fr fuse 30a
Slide
Vertical

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagrams for Lexus LS 400 1998

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List of elements for Power Top/Sunroof Wiring Diagrams for Lexus LS 400 1998:

B31 (body harn, right a-pillar)
Body ecu (behind left side of dash)
Bus
Center junction block (behind instrument cluster)
Close
Down
Driver door ecu
Front passenger door ecu
G206 (right side of instrument panel brace)
Hot at all times
Hot in on or start
Instrument panel j/b (at rear of parking brake release lever)
Moon roof control relay (in front of moon roof opening)
Moon roof control switch
Mpx1
Mpx2
Open
Power fuse 30a
Power seat ecu
Pwr-ig fuse 15a
Rear door ecu (left)
Rear door ecu (right)
Tilt & telescopic ecu (behind left side of dash)
W/ memory
W/o memory

POWER WINDOWS

Power Window Wiring Diagram (1 of 3) for Lexus LS 400 1998

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List of elements for Power Window Wiring Diagram (1 of 3) for Lexus LS 400 1998:

(behind combination meter) i9
(behind left kick panel) driver side junction block
(body harn, inside left front door)
(in driver's door) driver door ecu
A11
A13
A14
A20
Acc
Auto
B10
B11
B12
B13
B14
B15
B16
B17
B19
Bdr
Becu
Body ecu (behind left side of dash)
C12
C17
C18
C20
Center junction block (behind instrument cluster)
Computer data lines system
Cpub
Cty
Ctye
D fr door fuse 20a
D10
D11
D12
D15
D16
D18
Dome fuse 10a
Down
Driver side junction block (behind left kick panel)
Dt1
Dt2
Dt3
E13
Engine room junction block (on left side of engine compt, forward of strut tower)
Exterior lights system
Front power window master switch
Fuse holder (behind left side of dash)
G202 (behind combination meter)
G202 (left side of dash)
G206 (right side of instrument panel brace)
Grd
Grd1
Grd2
Haz
Headlights system
Horn
Horns system
Hot at all times
Hot in accy or run
Hot in run or start
Hrly
I6 (dash harn, left end of dash)
Instrument panel junction block (at rear of parking brake release lever)
J10
Junction connector j/c 9 (right kick panel)
Keye
Kul
Left front door key lock & unlock switch
Left front door lock control motor, door unlock detection switch & door open detection switch
Lmt
Lock
Mdn
Mpx+
Mpx-
Mpx-b fuse 10a
Mpx1
Mpx2
Mul
Mup
Open
Pls
Pnk
Pwe
Pwr-ig fuse 15a
Pws
Radio 2 fuse 15a
Rco
Rda
Red
Sc1
Sc2
Sc3
Sgrd
Sig
To center junction block (diagram 2 of 3)
Trly
Unlk
Window lock switch
Wireless door lock control ecu (behind right side of dash)
Wlsw

Power Window Wiring Diagram (2 of 3) for Lexus LS 400 1998

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List of elements for Power Window Wiring Diagram (2 of 3) for Lexus LS 400 1998:

(right side of instrument panel brace) g206
A12
A18
Auto
B11
B13
B14
B17
B19
Bdr
C12
C13
C14
C15
C16
Center junction block (behind instrument cluster)
Computer data lines system
Cpub
Cty
Ctye
D rr door fuse 20a
D11
From engine room junction block (diagram 1 of 3)
From instrument panel junction block (diagram 1 of 3)
Fuse holder (behind left side of dash)
Grd
Hot at all times
Instrument panel junction block (at rear of parking brake release lever)
K12
Keye
Kul
Left front power window motor
Limit
Lmt
Lock
Mdn
Mpx1
Mpx2
Mup
Open
P fr door fuse 20a
P rr door fuse 20a
Passenger door ecu (in right front door)
Pls
Pulse
Pwe
Right front door key lock & unlock switch
Right front door lock control motor, door unlock detection switch & door open detection switch
Right front power window control switch
Right front power window motor
Sgrd
Sig
Unlk

Power Window Wiring Diagram (3 of 3) for Lexus LS 400 1998

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List of elements for Power Window Wiring Diagram (3 of 3) for Lexus LS 400 1998:

(in left rear door) left rear door ecu
A10
A11
A14
A15
A18
A20
A21
A22
A23
A24
A25
Auto
B15
Bdr
C15
Computer data lines system
Cpub
Cty
Ctye
D13
Driver side junction block (behind left kick panel)
E17
G300 (under driver's seat)
G301 (under front passenger's seat)
G905 (under right c-pillar)
Grd
Left rear door lock control motor, door unlock detection switch & door open detection switch
Left rear power window control switch
Left rear power window motor
Limit
Lmt
Mdn
Mpx1
Mpx2
Mup
Open
Pcti
Pcto
Pls
Pulse
Pwe
Red
Right rear door ecu (in right rear door)
Right rear door lock control motor, door unlock detection switch & door open detection switch
Right rear power window control switch
Right rear power window motor
Sgrd
Sig

RADIO

Radio Wiring Diagrams, Nakamichi for Lexus LS 400 1998

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List of elements for Radio Wiring Diagrams, Nakamichi for Lexus LS 400 1998:

(dash harness, rear of center console)
(right dash brace) g206
A10
A11
A12
A13
A14
Acc
Agnd
Amp
Amp+
Atx+
Atx-
Aud+
Aud-
Automatic cd changer
B10
B11
B12
B13
B14
Beep
C10
C11
C12
C13
C20
Cdl+
Cdl-
Cdr+
Cdr-
Ctx+
Ctx-
Dash harness, rear of center console
Dash harness, under radio
Dome fuse 10a
Driver's side j/b (behind left kick panel)
E12
Engine room j/b (on left side of engine compartment, forward of strut tower)
Fl+
Fl-
Fr+
Fr-
Gnd
Gnd3
Hot at all times
Hot in acc or on
I29
I30
I33
I35
Illum
Instrument panel j/b (at rear of parking brake release lever)
Interior lights system
J/c 12 (behind top center of dash)
J/c 4 (behind upper left side of dash)
J10
Left front door speaker
Left rear door speaker
Mute
Pnk
Radio & cd player
Radio fuse 1 20a
Radio fuse 2 15a
Red
Right front door speaker
Right rear door speaker
Rl+
Rl-
Rr+
Rr-
Rtx+
Rtx-
Se2
Sgnd
Sgnd2
Sp+
Sp-
Speaker
Speaker relay
Stereo component amplifier (under front passenger's seat)
Telephone transceiver
Telephone transceiver & speaker relay (right side of luggage compartment)
Tlmt
Tweeter
Txm+
Txm-
Wf+
Wf-
Woofer speaker

Radio Wiring Diagrams, Pioneer for Lexus LS 400 1998

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List of elements for Radio Wiring Diagrams, Pioneer for Lexus LS 400 1998:

A12
Acc
Agnd
Atx+
Atx-
Aud +
Aud -
Automatic cd changer
B12
C10
C11
C12
C13
C14
C20
Cdl+
Cdl-
Cdr+
Cdr-
Ctx+
Ctx-
D10
D11
D12
D13
D14
Dash harness, rear of center console
Dash harness, under radio
Dome fuse 10a
Driver's side j/b (behind left kick panel)
E12
Emut
Engine room j/b (on left side of engine compartment, forward of strut tower)
F10
Fl+
Fl-
Fr+
Fr-
G10
G11
G12
G206 (right dash brace)
Gnd
Gnd3
Hot at all times
Hot in acc or on
I10
I11
I12
I13
I14
I27
Illum
Instrument panel j/b (at rear of parking brake release lever)
Interior lights system
J/c 12 (top center of dash)
J/c 4 (behind right kick panel)
J10
Left front door speaker
Left rear door speaker
Mute
Pnk
Radio & cd player
Radio fuse 1 10a
Radio fuse 2 15a
Red
Right front door speaker
Right rear door speaker
Rl+
Rl-
Rr+
Rr-
Rtx+
Rtx-
Se1
Sgnd
Sgnd2
Side of dash)
Sp+
Sp-
Speaker
Speaker relay
Stereo component amplifier (under front passenger's seat)
Telephone transceiver
Telephone transceiver & speaker relay (at right side of luggage compartment)
Tumt
Tweeter
Txm+
Txm-
Wf+
Wf-
Woofer speaker (under center of rear shelf)

Radio Wiring Diagrams, with Navigation for Lexus LS 400 1998

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List of elements for Radio Wiring Diagrams, with Navigation for Lexus LS 400 1998:

A12
Acc
Agnd
Atx+
Atx-
Aud +
Aud -
Aui+
Aui-
Auo+
Auo-
Automatic cd changer
B12
C20
Cdl+
Cdl-
Cdr+
Cdr-
Ctx+
Ctx-
Dash harness, (rear of center console)
Dome fuse 10a
Driver side j/b (behind left kick panel)
E12
Engine room j/b (on left side of engine compartment, forward of strut tower)
Engine room junction block (on left side of engine compartment, forward of strut tower)
F10
Fl+
Fl-
Fr+
Fr-
G10
G11
G12
G206 (right dash brace)
Gnd
Gnd3
Hot at all times
Hot in acc or on
I10
I11
I12
I13
I14
I31
Illum
Instrument panel j/b (at rear of parking brake release lever)
Interior lights system
J/c 12 (behind top center of dash)
J/c 4 (behind top left side of dash)
J10
Left front door speaker
Left rear door speaker
Multi display
Mute
N-nu
Navigation ecu (left rear corner of luggage compartment)
Pnk
Radio & cd player
Radio fuse 1 20a
Radio fuse 2 15a
Red
Right front door speaker
Right rear door speaker
Rl+
Rl-
Rr+
Rr-
Rtx+
Rtx-
Sgnd
Sgnd2
Side of dash)
Sp +
Sp -
Speaker
Speaker relay
Stereo component amplifier (under front passenger's seat)
Telephone transceiver
Telephone transceiver & speaker relay (at right side of luggage compartment)
Tumt
Tweeter
Tx+
Tx-
Tx1+
Tx1-
Txm+
Txm-
Wf+
Wf-
Woofer speaker (center of rear shelf)

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram for Lexus LS 400 1998

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List of elements for Shift Interlock Wiring Diagram for Lexus LS 400 1998:

10a
15a
25a
7.5
Acc
B17
B18
C19
C21
Center junction block (behind instrument cluster)
Doff
Driver side junction block (behind left kick panel)
E11
E15
Engine control module (behind right side of dash)
G202 (left side of dash)
G203 (right kick panel)
Gauge fuse
Hot at all times
Hot in acc or on
Hot in on or start
Instrument panel junction block (at rear of parking brake release lever)
J/c 18 (upper right end of dash)
J/c 5 (upper left end of dash)
Key interlock solenoid
Kls+
L12
Park/neutral position switch (on transmission)
Pwr-ig fuse
Radio 2 fuse
Rspd
Shift lock control switch
Shift lock ecu (under center console, near selector lever)
Shift lock solenoid
Sls+
Sls-
Stop light switch
Stop lp fuse
Stop-s fuse
Stp
Unlock warning switch & key interlock solenoid (behind left side of dash)

STARTING/CHARGING

Charging Wiring Diagram for Lexus LS 400 1998

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List of elements for Charging Wiring Diagram for Lexus LS 400 1998:

A/c control assembly (behind center of dash)
Acc
Alt fusible link 120a
Alt-s fuse 7.5a
Am1 fusible link 40a
B12
B13
Battery
Battery ground
Body ecu (behind left side of dash)
Center junction block (behind instrument cluster)
Charge warning light
Comb- ination meter
Door locks system
Driver side junction block (behind left kick panel)
E16
Ecu-ig fuse 10a
Engine control module (behind right side of dash)
Engine room junction block (on left side of engine compt, forward of strut tower)
Fusible link block (on left side of engine compt, forward of strut tower)
G202 (left side of dash)
Gauge fuse 10a
Generator
I5 (dash harness, behind combination meter)
Ignition switch
Instrument panel junction block (rear of parking brake release lever)
J/c 5 (left side of dash)
J/c 6 (left side of dash)
Main fusible link 80a
Mpx+
Mpx-
Mpx1
Mpx2
Multi-display
Nca
Off
Pnk
Pnk a10
Solid state
Start
W/ navigation
W/o navigation

Starting Wiring Diagram for Lexus LS 400 1998

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List of elements for Starting Wiring Diagram for Lexus LS 400 1998:

(on transmission)
A19
Acc
Am2
Am2 fusible link 30a
Battery
Center junction block (behind instrument cluster)
E11
Engine control module (behind right side of dash)
Engine room junction block (on left side of engine compartment, forward of strut tower)
Fusible link block (on left side of engine compartment, forward of strut tower)
G100 (front of left front fender)
Ignition switch
Instrument panel junction block (at rear of parking brake release lever)
L11
Lock
Main fusible link 80a
Nca
Park/ neutral position switch
Run
St fuse 7.5a
St fusible link 30a
St2
Sta
Start
Starter motor
Starter relay