Diagram sections — 35 (67 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY COMPUTER COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING ELECTRONIC SUSPENSION ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS NAVIGATION PASSIVE RESTRAINTS POWER ANTENNA POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCKS STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING Automatic A/C Wiring Diagram (2 of 2) for Lexus LS 400 2000 List of elements for Automatic A/C Wiring Diagram (2 of 2) for Lexus LS 400 2000: 58 (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 (at front of engine compartment, near right side of radiator support) engine coolant temperature switch (engine room main wire harness, near left headlight) (engine room main wire harness, near left headlight) e8 (front side of right fender) g101 (on left side of engine compartment, forward of strut tower) engine room j/b (right rear side of cylinder head) g117 A/c ambient temperature sensor (behind right center of bumper) A/c evaporator temperature sensor (behind right center of dash) A/c fuse 7.5a A/c magnetic clutch (on a/c compressor) A/c room temperature sensor (behind center of dash) A/c single pressure switch (at upper left radiator support, integral to a/c triple pressure switch) A/c solar sensor (at upper right side of dash) B12 B13 Blower controller (behind right side m+ of dash) Blower motor (behind lower right side of dash) C12 C21 Center j/b (behind instrument cluster) Combination meter D11 Driver side j/b (behind left kick panel) Duct sensor (driver side) (behind left side of dash) Duct sensor (passenger side) (behind upper right side of dash) E11 Engine room j/b (on left side of engine compartment, forward of strut tower) Exhaust gas sensor (at front of engine compartment, near right center of radiator support) Fusible link block (on left side of engine compartment, forward of strut tower) 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 (at rear of parking brake release lever) J/c 10 (behind right side of dash) J/c 13 (behind upper center of dash) J/c 3 (behind right kick panel) J11 Mg clt relay Open R/b 6 (under left headlight) Radiator fan motor & resistor (at right front of engine compartment) Rdi fan 1 relay Rdi fan 2 relay Rdi fan fuse 30a Red Shut Water valve servo motor (behind center of dash)
ANTI-LOCK BRAKES Anti-lock Brake Wiring Diagrams (1 of 3) for Lexus LS 400 2000 List of elements for Anti-lock Brake Wiring Diagrams (1 of 3) for Lexus LS 400 2000: 49 (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 2000 List of elements for Anti-lock Brake Wiring Diagrams (2 of 3) for Lexus LS 400 2000: 40 (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 2000 List of elements for Anti-lock Brake Wiring Diagrams (3 of 3) for Lexus LS 400 2000: 67 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 2000 List of elements for Anti-theft Wiring Diagram (1 of 2) for Lexus LS 400 2000: 99 (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 2000 List of elements for Anti-theft Wiring Diagram (2 of 2) for Lexus LS 400 2000: 62 (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 2000 List of elements for Body Computer Wiring Diagrams (1 of 2) for Lexus LS 400 2000: 70 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 2000 List of elements for Body Computer Wiring Diagrams (2 of 2) for Lexus LS 400 2000: 41 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 2000 List of elements for Computer Data Lines for Lexus LS 400 2000: 81 (dash harn, upper right end of dash) (left side of dash) (right kick panel) j/c 3 (right rear side of engine) (right side of instrument panel brace) A/c control assembly A12 A13 A14 A15 A16 A39 A40 Abs & trac & vsc ecu (behind right side of dash) Abs indicator Air bag sensor assembly (behind front of center console) Air suspension ecu (behind right side of dash) Anti-lock brakes system (abs sol relay) B10 B12 B13 B14 Bat Body ecu (left side of dash) Bus Bus buffer (behind right side of dash) C10 C14 C16 Center j/b Combination meter D/g D12 D12 mpx1 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 G117 G202 (behind combination meter) G206 Height indicator Hot at all times I42 Instrument panel j/b J/c 10 (behind right side of dash) J/c 6 Left rear door ecu Moon roof control relay (front of moon roof opening) Mpx+ Mpx- Mpx1 Mpx2 Multi display Ob2 Obd fuse 7.5a Pnk Power seat ecu (under driver's seat) Right rear door ecu Short pin Sil Srs indicator Tem Tilt & 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 2000 List of elements for Cooling Fan Wiring Diagram for Lexus LS 400 2000: 23 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 2000 List of elements for Cruise Control Wiring Diagram for Lexus LS 400 2000: 95 (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 2000 List of elements for Defogger Wiring Diagram for Lexus LS 400 2000: 28 (at left front corner of engine compt) noise filter (rear window defogger) (center of instrument panel) g206 (left side of dash) g202 (right side of instrument panel) g201 A/c control assembly A18 A19 A21 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 upper right of dash) J/c 6 (behind upper left side 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 2000 List of elements for Electronic Power Steering Wiring Diagram for Lexus LS 400 2000: 17 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 2000 List of elements for Electronic Suspension Wiring Diagram (1 of 2) for Lexus LS 400 2000: 72 (combination switch) steering sensor (electronically controlled transmission pattern select switch) height control switch 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 j/b (behind instrument cluster) 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 j/b (behind left kick panel) E16 Ecu-ig fuse 10a Engine controls system Engine room j/b (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 j/b (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 2000 List of elements for Electronic Suspension Wiring Diagram (2 of 2) for Lexus LS 400 2000: 62 (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 j/b (behind instrument cluster) Combination meter Driver side j/b (behind left kick panel) Engine room r/b (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) Gnd 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 I12 (dash harn, right kick panel) J/c 8 (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 R/b 6 (under left headlight) Rar+ Rar- Rbr+ Rbr- Rear height control valve (under right rear of vehicle) Red 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 W/ headlight beam level control W/o headlight beam level control
ENGINE PERFORMANCE
4.0L 4.0L, Engine Performance Wiring Diagrams (1 of 4) for Lexus LS 400 2000 List of elements for 4.0L, Engine Performance Wiring Diagrams (1 of 4) for Lexus LS 400 2000: 96 (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 (behind 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 2000 List of elements for 4.0L, Engine Performance Wiring Diagrams (2 of 4) for Lexus LS 400 2000: 48 (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 2000 List of elements for 4.0L, Engine Performance Wiring Diagrams (3 of 4) for Lexus LS 400 2000: 64 (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 E10 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 (at right side of luggage compt) Vcc Vsv (canister closed valve) (on right side of firewall)
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Lexus LS 400 2000 List of elements for Back-up Lamps Wiring Diagram for Lexus LS 400 2000: 11 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 2000 List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Lexus LS 400 2000: 86 (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 2000 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Lexus LS 400 2000: 68 (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 2000 List of elements for Ground Distribution Wiring Diagram (1 of 4) for Lexus LS 400 2000: 49 (canada) (on left side of engine compt, forward of strut tower) engine room relay block (under left headlight) relay block 6 (w/ hid) (w/o hid) A/c dual pressure switch A/c single pressure switch A34 Abs & trac & vsc actuator Abs sol relay Air sus relay Daytime running light relay 3 Daytime running light relay 4 E7 (engine harn, right radiator support) E8 (engine harn, behind left headlight) E8 (engine harness, behind left headlight) Efi relay Engine coolant temperature switch Engine hood courtesy switch Engine main relay Engine room j/b (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 Right fog- light Right front side marker light Right front turn signal light 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 2000 List of elements for Ground Distribution Wiring Diagram (2 of 4) for Lexus LS 400 2000: 62 A/c control assembly A/c magnetic clutch A15 A21 Airbag sensor assembly B14 B33 (body harn, under right front seat) Cruise control switch D22 Data link connector 1 Data link connector 3 E13 E14 E15 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 (behind right side of dash) Junction connector j/c 16 (behind upper center of dash) Junction connector j/c 3 (behind 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 Seat heater switch 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 2000 List of elements for Ground Distribution Wiring Diagram (3 of 4) for Lexus LS 400 2000: 58 (canada) (left side of dash) (left side of dash) junction connector j/c 6 (w/ hid) A16 A38 Abs & trac & vsc ecu B1 (body harn, inside right front door) B31 B31 (body harn, right "a" pillar) Body ecu Brake fluid level warning switch Combination meter D12 Data link connector 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 door opener G202 G202 (behind combination meter) 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 (behind left side of dash) Junction connector j/c 6 (left side of dash) Junction connector j/c 9 (behind 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 2000 List of elements for Ground Distribution Wiring Diagram (4 of 4) for Lexus LS 400 2000: 75 (body harn, inside right rear door) (body harness, right rear door sill) (left rear seat harness) (w/ air ride) (w/ hid) (w/ memory) (w/o air ride) A14 A39 Abs & trac & vsc ecu Air suspension ecu Arm rest switch B16 B29 (body harn, base of left "c" pillar) B30 (body harn, left side of trunk lid) B36 B36 (body harness, left side of left front seat back) B38 Blower controller C20 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 side 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 passenger's seat head rest turning control motor Left rear personal light Left rear suspension control actuator Light failure sensor Luggage compartment door key unlock switch Navigation ecu P10 P11 P29 Power outlet Power seat ecu Rear audio control panel Rear height control valve Rear passenger's seat control switch 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 passenger's seat head rest turning control motor 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 2000 List of elements for Headlamps Wiring Diagram, with DRL (1 of 2) for Lexus LS 400 2000: 86 (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 (bhind left side 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 2000 List of elements for Headlamps Wiring Diagram, with DRL (2 of 2) for Lexus LS 400 2000: 50 (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 left 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 Headlight control ecu (left low beam) (w/ hid) left low beam headlight (w/o hid) Headlight control ecu (right low beam) (w/ hid) right low beam headlight (w/o hid) 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 side of dash) Junction connector j/c 9 (right kick panel) K10 Left fog light Left high beam headlight 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 Starting/ charging system Headlamps Wiring Diagram, without DRL (1 of 2) for Lexus LS 400 2000 List of elements for Headlamps Wiring Diagram, without DRL (1 of 2) for Lexus LS 400 2000: 84 (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 (behind left side 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 2000 List of elements for Headlamps Wiring Diagram, without DRL (2 of 2) for Lexus LS 400 2000: 42 (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 (behind combination meter) 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 Headlight control ecu (left lowbeam) Headlight control ecu (right lowbeam) 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 side of dash) Left foglight Left high beam head- light Left low beam head- light Main fuse 80a Mpx-b fuse 10a Red Right foglight Right high & low beam headlight Right high beam head- light Short pin W/ hid W/o hid Headlamps Leveling Wiring Diagram for Lexus LS 400 2000 List of elements for Headlamps Leveling Wiring Diagram for Lexus LS 400 2000: 56 (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 2000 List of elements for Horn Wiring Diagram for Lexus LS 400 2000: 15 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 2000 List of elements for Instrument Cluster Wiring Diagram for Lexus LS 400 2000: 86 (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 2000 List of elements for Courtesy Lamps Wiring Diagram (1 of 3) for Lexus LS 400 2000: 51 (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 (forward of left rear wheelwell) 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 2000 List of elements for Courtesy Lamps Wiring Diagram (2 of 3) for Lexus LS 400 2000: 74 (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 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) Floor harness, near right rear door sill) b41 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 2000 List of elements for Courtesy Lamps Wiring Diagram (3 of 3) for Lexus LS 400 2000: 51 B17 B19 Bdr Center junction block (behind instrument cluster) Computer data lines system Cpub Cty Ctyb Ctye Cyl D rr door fuse 20a D11 F27 F28 F38 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) R40 R42 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 2000 List of elements for Instrument Illumination Wiring Diagram for Lexus LS 400 2000: 49 (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 2000 List of elements for Memory System Wiring Diagrams (1 of 2) for Lexus LS 400 2000: 93 (dash harn, behind combination meter) (forward of left rear wheelwell) j/c 17 (left side of (left side of dash) Acc B17 B19 Bdr Becu Bem+ Bem- Body ecu (behind left side of dash) C12 C17 Center j/b (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 j/b (behind left kick panel) Driver's shoulder belt adjust switch Driving position & memory control switch Dsdn Dsup Dsw Dvc E13 E15 Engine room j/b F27 F28 F38 Front door open detection switch Fuse holder (behind left side of dash) G202 (behind combination meter) 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 j/b 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 Power shoulder belt anchor relay (left) Pvc Pwr-ig fuse 15a Radio 2 fuse 15a Red Remote control mirror switch Right Right remote control mirror Select switch Set Sig To shoulder belt anchor motor (diagram 2 of 2) To tilt & telescopic ecu (diagram 2 of 2) Usw Vsrl Vssr
NAVIGATION Navigation Wiring Diagram for Lexus LS 400 2000 List of elements for Navigation Wiring Diagram for Lexus LS 400 2000: 60 (behind upper center of dash) 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 j/b (behind left kick panel) E12 Engine room j/b (on left side of engine compt, forward of strut tower) F10 Fl+ Fl- G12 G206 (left side of instrument panel brace) G407 (right side of trunk rear panel) Gnd1 Grd1 Hot at all times Hot in accy or run Instrument cluster system Instrument panel j/b (at rear of parking brake release lever) J10 Junction connector j/c 12 (behind upper center of dash) Junction connector j/c 17 (forward of left rear wheelwell) Junction connector j/c 4 (upper left side of dash) Left front door speaker Mpx1 Mpx2 Multi-display Mute N-mu Navigation ecu (at left rear corner of luggage compt) Pbew Pnk R37 R38 R39 Radio & player Radio 1 fuse 20a Radio 2 fuse 15a Red S27 S28 Sgnd Spd Stereo component amplifier (under front passenger's seat) Sync Tx+ Tx- Tx1+ Tx1-
PASSIVE RESTRAINTS Electric Tension Reducer Wiring Diagram for Lexus LS 400 2000 List of elements for Electric Tension Reducer Wiring Diagram for Lexus LS 400 2000: 13 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 2000 List of elements for Power Shoulder Belt Anchorage Wiring Diagram for Lexus LS 400 2000: 13 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 ANTENNA Power Antenna Wiring Diagram for Lexus LS 400 2000 List of elements for Power Antenna Wiring Diagram for Lexus LS 400 2000: 17 (forward of left rear wheelwell) j/c 17 Auto antenna control relay & motor B17 B29 (body harn, base of left "c" pillar) Driver side j/b Engine room j/b G300 (under driver's seat) Hot at all times Hot in acc or on Hot in on or start Instrument panel j/b J/c 12 (upper center of dash) J/c 4 (left side of dash) Pwr-ig fuse 15a Radio & player Radio 1 fuse 20a Radio 2 fuse 15a
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 2) for Lexus LS 400 2000 List of elements for Power Distribution Wiring Diagram (1 of 2) for Lexus LS 400 2000: 83 (canada) (on left side of engine compt, forward of strut tower) engine room j/b (on left side of engine compt, forward of strut tower) engine room r/b (on left side of engine, room j/b strut tower) (usa) Abs fuse 60a Air conditioning, cooling fans systems Alt fuse 120a Alt-s fuse 7.5a Am1 fuse 40a Am2 fuse 30a Anti-lock brakes system Anti-lock brakes, headlights systems Battery Body computer, instrument cluster, electronic power steering, interior lights, passive restraints, warnings, power windows, door locks systems Cellular phones system Cir opn relay Coil Computer data lines 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 Electronic suspension, body computer, instrument cluster, interior lights, headlights, memory, sound, door locks systems Engine controls system Engine main relay Engine room j/b Engine room j/b (on left side of engine compt, forward of strut tower) Etcs fuse 15a Exterior lights system Fr s/htr fuse 15a From e engine room j/b (diagram 1 of 2) From f engine room j/b (diagram 1 of 2) From fusible link block (diagram 1 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 Horn relay J10 K10 L lwr h-lp fuse 15a L upr h-lp fuse 10a Main fuse 80a Mg clt relay 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, power antenna, navigation systems St fuse 30a Starter Starter relay Starting/ charging system Tel fuse 15a To engine room j/b (diagram 1 of 2) To engine room r/b (diagram 1 of 2) To ignition switch (diagram 2 of 2) To instrument panel j/b (diagram 2 of 2) To instrument panel junction block (diagram 2 of 2) Wiper/ washer system Power Distribution Wiring Diagram (2 of 2) for Lexus LS 400 2000 List of elements for Power Distribution Wiring Diagram (2 of 2) for Lexus LS 400 2000: 95 (at rear of parking brake release lever) instrument panel j/b (body harn, left door sill) (dash harn, behind combination meter) (left side of instrument panel brace) g206 (right side of instrument panel brace) g206 A/c fuse 7.5a Acc Air air conditioning, instrument cluster, sound systems Air conditioning system Air conditioning, body computer, sound, navigation, shift interlock instrument cluster, power antenna interior lights, power windows, warnings systems Air sus fuse 20a Anti-lock brakes, starting/charging, electronic power steering, electronic suspension, headlights systems B16 B28 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 system Exterior lights system Exterior lights, anti-lock brakes, cruise control, shift interlock, electronic suspension, transmission body computer system F11 Fog- light relay Fr cig fuse 15a Fr fog fuse 15a From engine room j/b (diagram 1 of 2) 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 (left side of instrument panel brace) G206 (right side of instrument panel brace) G300 (under driver's seat) 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, exterior lights, transmissions, cruise control, starting/charging, shift interlock systems Instrument panel j/b (at rear of parking brake release lever) Interior lights systems Interior lights, body computer, headlights, door locks, power windows, memory, power tops, power antenna, mirrors, telephone, warnings, shift interlock, electronic power steering, passive restraints, wiper/washer systems J11 J16 Junction connector j/c 16 (behind upper center of dash) Junction connector j/c 18 (upper right side of dash) Junction connector j/c 4 (upper left end of dash) K12 L10 L11 L12 Left rear cigarette lighter Left rear door ecu Lock P fr door fuse 20a P rr door fuse 20a Panel fuse 7.5a Pnk Power outlet Power tops, seats, passive restraints, electronic power steering systems Pwr fuse 30a Pwr-ig fuse 15a Radio 2 fuse 15a Red Right rear cigarette lighter Right rear door ecu Rr cig fuse 15a Run Seat fr fuse 30a Seats, memory systems Start Starter fuse 7.5a Starting/ charging, engine controls system Stop lp fuse 25a Stop-s fuse 7.5a Stoplight switch (brake pedal bracket) Tail fuse 7.5a Taillight control relay To instru- ment panel junction block (diagram 2 of 2) Trunk, tailgate, fuel doors, passive restraints system Turn fuse 7.5a Washer fuse 20a Wiper fuse 20a Wiper/ washer system Wiper/ washer systems
POWER DOOR LOCKS Power Door Lock Wiring Diagram (1 of 2) for Lexus LS 400 2000 List of elements for Power Door Lock Wiring Diagram (1 of 2) for Lexus LS 400 2000: 99 (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) Power Door Lock Wiring Diagram (2 of 2) for Lexus LS 400 2000 List of elements for Power Door Lock Wiring Diagram (2 of 2) for Lexus LS 400 2000: 62 (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 Mirror Wiring Diagram for Lexus LS 400 2000 List of elements for Electrochromic Mirror Wiring Diagram for Lexus LS 400 2000: 15 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 2000 List of elements for Heated Seats Wiring Diagram for Lexus LS 400 2000: 22 (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 2000 List of elements for Power Seats Wiring Diagram for Lexus LS 400 2000: 34 (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 Rear Power Seat Wiring Diagram for Lexus LS 400 2000 List of elements for Rear Power Seat Wiring Diagram for Lexus LS 400 2000: 13 G405 (right rear end of trunk) Hot at all times Instrument panel junction block (at rear of parking brake release lever) Left rear passenger's seat slide control motor (under seat) Left rear seat head rest top & bottom control motor (under seat) P29 P30 Power fuse 30a Rear passenger's seat power control switch Right rear passenger's seat slide control motor (under seat) Right rear seat head rest top & bottom control motor (under seat) Right rear seat head rest turning control motor (under seat) Seat harness)
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagrams for Lexus LS 400 2000 List of elements for Power Top/Sunroof Wiring Diagrams for Lexus LS 400 2000: 25 B31 (body harn, right "a" pillar) Body ecu (behind left side of dash) Bus Center j/b (behind instrument cluster) Close Down Driver door ecu Front passenger door ecu G201 (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) Left rear door ecu 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 Right rear door ecu 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 2000 List of elements for Power Window Wiring Diagram (1 of 3) for Lexus LS 400 2000: 84 (1999) (2000) (behind left kick panel) driver side j/b (body harn, inside left front door) (dash harness, behind combination meter) i9 (in driver's door) driver door ecu Acc Auto B17 B19 Bdr Becu Body ecu (behind left side of dash) C17 C20 Center j/b (behind instrument cluster) Computer data lines system Cpub Cty Ctye D fr door fuse 20a D10 D11 D12 D18 Dome fuse 10a Down Driver side j/b (behind left kick panel) Dt1 Dt2 Dt3 E13 Engine room j/b (on left side of engine compt, forward of strut tower) Front power window master switch Fuse holder (behind left side of dash) G201 g206 (right side of instrument panel brace) G202 (behind combination meter) G202 (left side of dash) Gnd Gnd1 Gnd2 Grd Hot at all times Hot in accy or run Hot in run or start I6 (dash harn, left end of dash) Instrument panel j/b (at rear of parking brake release lever) J/c 9 (right kick panel) J10 Keye Kul Left front door key lock & unlock switch Left front 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 Rssi Sc1 Sc2 Sc3 Sgnd Sig To driver side junction block (diagram 2 of 3) Unlk Unlock 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 2000 List of elements for Power Window Wiring Diagram (2 of 3) for Lexus LS 400 2000: 49 (1999) (2000) (diagram 1 of 3) Auto B17 B19 Bdr Computer data lines system Cpub Cty Ctye D rr door fuse 20a D11 Driver side j/b (behind left kick panel) F27 F28 F38 From From engine room j/b (diagram 1 of 3) Fuse holder (behind left side of dash) G201 g206 (right side of instrument panel brace) Gnd Hot at all times Instrument panel j/b Instrument panel j/b (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 open detection switch Right front power window control switch Right front power window motor Sgnd Sig Unlk Power Window Wiring Diagram (3 of 3) for Lexus LS 400 2000 List of elements for Power Window Wiring Diagram (3 of 3) for Lexus LS 400 2000: 43 (in left rear door) left rear door ecu Auto B15 Bdr C15 Computer data lines system Cpub Cty Ctye D13 Driver side j/b (behind left kick panel) E17 G300 (under driver's seat) G301 (under front passenger's seat) G905 (under right "c" pillar) Gnd Left rear 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 R40 R41 R42 R43 Red Right rear door ecu (in right rear door) Right rear door open detection switch Right rear power window control switch Right rear power window motor Seli Sgnd Sig
RADIO Radio Wiring Diagrams, Nakamichi for Lexus LS 400 2000 List of elements for Radio Wiring Diagrams, Nakamichi for Lexus LS 400 2000: 77 A10 A11 A12 A13 A14 Acc Agnd Amp Amp+ Atx+ Atx- Automatic cd changer B10 B11 B12 B13 B14 Beep C10 C11 C12 C13 Cdl+ Cdl- Cdr+ Cdr- Ctx+ Ctx- Dome fuse 10a Driver's side j/b (behind left kick panel) E12 Engine room j/b (left side of engine compartment, forward of strut tower) Fl+ Fl- Fr+ Fr- G206 (left side of instrument panel brace) Gnd Gnd3 Hot at all times Hot in acc or on Illum Instrument panel j/b (at right rear parking brake release lever) Interior lights system J10 Junction connector j/c 12 (behind upper center of dash) Junction connector j/c 4 (behind upper left side of dash) Left front door speaker Left rear door speaker Mute Pnk Radio fuse 1 20a Radio fuse 2 15a Radio/cd player Red Red c20 Right front door speaker Right rear door speaker Rl+ Rl- Rr+ Rr- Rtx+ Rtx- Sgnd 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 2000 List of elements for Radio Wiring Diagrams, Pioneer for Lexus LS 400 2000: 87 (under front passenger's seat) stereo component amplifier A12 Acc Agnd Ant Anta Antb Atx+ Atx- Automatic cd changer B12 C10 C11 C12 C13 C14 Cdl+ Cdl- Cdr+ Cdr- Ctx+ Ctx- D10 D11 D12 D13 D14 Dome fuse 10a Driver's side j/b (behind left kick panel) E12 Engine room j/b (left side of engine compartment, forward of strut tower) F10 Fl+ Fl- Fr+ Fr- G10 G11 G12 G206 (left side of instrument panel bracket) Gnd Gnd3 Hot at all times Hot in acc or on I10 I11 I12 I13 I14 Illum Instrument panel j/b (at right rear parking brake release lever) Interior lights system J10 Junction connector j/c 12 (behind upper center of dash) Junction connector j/c 4 (behind upper left side of dash) Left front door speaker Left rear door speaker Mute Pnk Power antenna system Radio fuse 1 20a Radio fuse 2 15a Radio/cd player Red Red c20 Right front door speaker Right rear door speaker Rl+ Rl- Rr+ Rr- Rtx+ Rtx- Se1 Sgnd Sgnd2 Speaker Speaker relay Telephone transceiver Telephone transceiver & speaker relay (right side of luggage compartment) Tumt Tweeter Txm+ Txm- Wf+ Wf- Woofer speaker Radio Wiring Diagrams, with Navigation for Lexus LS 400 2000 List of elements for Radio Wiring Diagrams, with Navigation for Lexus LS 400 2000: 83 (under front passenger's seat) stereo component amplifier A12 Acc Agnd Atx+ Atx- Aui+ Aui- Auo+ Auo- Automatic cd changer B12 Cdl+ Cdl- Cdr+ Cdr- Ctx+ Ctx- Dome fuse 10a Driver's side j/b (behind left kick panel) E12 Engine room j/b (left side of engine compartment, forward of strut tower) F10 Fl+ Fl- Fr+ Fr- G10 G11 G12 G206 (left side of instrument panel bracket) Gnd Gnd3 Hot at all times Hot in acc or on I10 I11 I12 I13 I14 Illum Instrument panel j/b (at right rear parking brake release lever) Interior lights system J10 Junction connector j/c 12 (behind upper center of dash) Junction connector j/c 4 (behind upper left side of dash) Left front door speaker Left rear door speaker Multi display Mute N-nu Navigation ecu (left rear corner of luggage compartment) Pnk Radio fuse 1 20a Radio fuse 2 15a Radio/cd player Red Red c20 Right front door speaker Right rear door speaker Rl+ Rl- Rr+ Rr- Rtx+ Rtx- Sgnd Sgnd2 Speaker Speaker relay Telephone transceiver Telephone transceiver & speaker relay (right side of luggage compartment) Tumt Tweeter Tx+ Tx- Tx1+ Tx1- Txm+ Txm- Wf+ Wf- Woofer speaker
SHIFT INTERLOCKS Shift Interlock Wiring Diagram for Lexus LS 400 2000 List of elements for Shift Interlock Wiring Diagram for Lexus LS 400 2000: 41 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 2000 List of elements for Charging Wiring Diagram for Lexus LS 400 2000: 42 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 2000 List of elements for Starting Wiring Diagram for Lexus LS 400 2000: 27 (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
SUPPLEMENTAL RESTRAINTS Supplemental Restraint Wiring Diagram for Lexus LS 400 2000 List of elements for Supplemental Restraint Wiring Diagram for Lexus LS 400 2000: 80 (at rear of parking brake release lever) instrument panel j/b (left dash brace) g206 (on top left side of engine) (right rear side of cylinder head) g117 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 A27 A28 Acc Air bag sensor assembly (behind front of center console) Air bag squib (front passenger air bag assembly) Air bag squib (steering wheel pad) B10 B11 B12 B17 Body ecu (behind left side of dash) C10 C11 C12 C17 Center j/b (behind combination meter) Combination meter D18 Data link connector (dlc) 1 (partial) Data link connector (dlc) 3 (partial) (behind lower left side of dash) Engine room j/b (on left side of engine compartment, forward of strut tower) Esl Esr F10 Fl+ Fl- Fr cig fuse 15a Fr+ Fr- Fsl Fsr G206 (right dash brace) Gsw Hot at all times Hot in acc or on Hot in on or start Ig2 Ign fuse 10a Instrument panel j/b (at rear of parking brake release lever) J/c 3 (behind right kick panel) Left pretensioner (at base of left "b" pillar) Left side air bag sensor (near base of left "b" pillar) Left side air bag squib Mpx-b fuse 10a Pl+ Pl- Pnk Pr+ Pr- Right pretensioner (at base of right "b" pillar) Right side air bag sensor (near base of right "b" pillar) Right side air bag squib Sil Spiral cable Srs warning indicator Ssl+ Ssr+ Vupl Vupr
TRANSMISSION A/T Wiring Diagram for Lexus LS 400 2000 List of elements for A/T Wiring Diagram for Lexus LS 400 2000: 88 (behind cluster) center j/b (dash harn, right kick panel) (engine harness, left side of engine) (right kick panel) g203 (right side of dash) j/c 18 +b1 A/t oil A20 Accel position sensor (top front of engine) Anti-lock brake system B18 B21 Batt Center j/b (behind cluster) D10 Data link connector 1 (top left side of engine) Driver side j/b (left kick panel) E01 E02 E03 E11 E12 E13 E14 E15 E16 E20 Efi 1 fuse 20a Efi relay Electronic controlled transmission pattern select switch Electronic controlled transmission solenoid Engine control module (behind right side of dash) Engine coolant temperature sensor (right front of engine) Engine room j/b (left side of engine compt) G100 (front of left front fender) G112 (left rear side of engine) Gauge fuse 10a Hot at all times Hot in on or start I13 I38 Ign fuse 10a Igsw Instrument panel j/b (at rear of parking brake release lever) Interior lights system L12 Mrel Nco+ Nco- No. 1 No. 2 No. 3 No. 4 O/d direct clutch speed sensor (on trans) Oil Park/ neutral position switch (on transmission) Pnk Pwr Red Sln Sln+ Sln- sln- Slt Slt+ Slt- Slu Slu+ Slu- Snwi Sp2+ Sp2- St1 Starting/ charging system Stop lp fuse 25a Stop-s fuse 7.5a Stoplight switch (on brake pedal bracket) Stp Temp Throttle position sensor (on throttle body) Thw Transmission control switch (front of gear selector) Vehicle speed sensor (on trans) Vpa Vpa2 Vta Vta2 W/ air susp W/o air susp
TRUNK, TAILGATE, FUEL DOOR Trunk, Tailgate, Fuel Door Wiring Diagrams for Lexus LS 400 2000 List of elements for Trunk, Tailgate, Fuel Door Wiring Diagrams for Lexus LS 400 2000: 18 B16 Body ecu (left side of dash) Fuel lid opener solenoid (at right side of luggage compartment) Fuel lid opener switch (left side of dash) Fuel opn fuse 10a G206 (left side of instrument panel brace) G407 (right side of trunk rear panel) G905 (under right c-pillar) Hot at all times Instrument panel junction block (at rear of parking brake release lever) J/c 16 (behind center air vents) Luggage compartment door key unlock switch Luggage compartment door opener motor (center rear of trunk) Luggage compartment door opener switch (left side of dash) Main Tkul Tr+ Tsw
WARNING SYSTEMS Warning System Wiring Diagrams for Lexus LS 400 2000 List of elements for Warning System Wiring Diagrams for Lexus LS 400 2000: 65 (forward of left rear wheelwell) A18 A21 Acc B12 B17 B19 Bdr Becu Body ecu (behind left side of dash) C16 C17 Center j/b Combination meter Computer data lines Cpub Cty Ctye D fr door fuse 20a D10 D11 D12 Dbkl Driver door ecu (in driver's door) Driver side junction block (left kick panel) E13 Engine room junction block Front passenger's seat belt warning light Fuse holder (behind left side of dash) G202 (behind combination meter) G202 (left side of dash) G300 (under driver's seat) G301 (under front passenger's seat) Gauge fuse 10a Gnd Gnd2 Hot at all times Hot in acc or run Hot in run or start I9 (behind combination meter) Instrument panel junction block J/c 12 (upper center of dash) J/c 17 J/c 5 (left side of dash) J/c 6 (left side of dash) Ksw Left buckle switch Left front door open detection switch Mpx+ Mpx-b fuse 10a Mpx1 Mpx2 Pbkl Pnk Pwr-ig fuse 15a Radio no. 2 fuse 15a Red Right buckle switch Seat belt ind Seat belt warning occupant detection sensor Sig Solid state Unlock warning switch (behind left side of dash) W/ navi- gation W/o navi- gation
WIPER/WASHER Wiper/Washer Wiring Diagram for Lexus LS 400 2000 List of elements for Wiper/Washer Wiring Diagram for Lexus LS 400 2000: 26 Body ecu (behind left side of dash) Combination switch G202 (behind combination meter) Hot in on or start I10 I45 (dash harn, left side of dash) I46 (dash harn, left side of dash) Instrument panel junction block (at rear of parking brake release lever) Instrument panel junction block (at rear of parking brake release lever) Int Intermittent time control switch J/c 6 (left end of dash) J12 Mist switch Off S/m S/s Vr1 Vr2 Washer fuse 20a Washer motor (at left front corner of engine compt) Washer switch Wig Wiper fuse 20a Wiper motor (on left side of firewall) Wiper switch
