Diagram sections — 31 (81 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING ELECTRONIC SUSPENSION ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS NAVIGATION POWER ANTENNA POWER DISTRIBUTION POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING Automatic A/C Wiring Diagram, Rear (1 of 2) for Lexus LX 470 2003 List of elements for Automatic A/C Wiring Diagram, Rear (1 of 2) for Lexus LX 470 2003: 53 (in body harness, at center of roof) b12 (under front of right front seat) bk (under left front seat) bj Auto Auto-1 Auto-s B/l-i B/l-s B10 B12 (in body harness, at center of roof) B52 B71 Bi-level Cool Engine room j/b (on left inner fender panel) Face Face-i Face-s Foot Foot-i Foot-s Hi-i Hi-s Hot Hot at all times Hot in on or start Ill Illum Junction connector (at left rear wheelwell) K18 K42 Lo-i Lo-s Me-i Me-s Middle Off Off-s Rear a/c control switch Rear cooler blower motor (in rear heater- a/c unit) Rear cooler power transistor (in rear heater-a/c unit) Rear heater blower motor (in rear heater-a/c unit) Rear heater power transistor (in rear heater-a/c unit) Rear inlet air temperature sensor (on rear heater-a/c unit) Red Right kick panel j/b (at right kick panel) Room temperature sensor (rear) (on middle of roof) Rr a/c fuse 30a Rr htr fuse 10a Rr htr relay Solid state Srg T-set Automatic A/C Wiring Diagram, Rear (2 of 2) for Lexus LX 470 2003 List of elements for Automatic A/C Wiring Diagram, Rear (2 of 2) for Lexus LX 470 2003: 81 (on rear heater- a/c unit) rear cooler magnetic valve (under front of right front seat) bk A/c amplifier (at right side of cargo area) A/c control assembly A/c fuse 15a A18 A33 A34 A35 A47 A48 A49 Atin B/l B16 Blin Blwc Blwh Cid Clkf Csd E19 Ecu-b2 fuse 10a Ecu-ig2 fuse 10a F10 Face Fcin Foot Frcid Frclk Frcsd Ftin Gnd Hiin Hot at all times Hot in on or start Hrc Hrh Ig+ Ill+1 Ill- Interior lights system J/b 4 (behind upper center of dash) Junction connector (at right rear wheelwell) Junction connector 14 (behind left center of dash, near windshield) Junction connector 24 (at right rear wheelwell) K19 K35 K39 Left kick panel j/b (at left kick panel) Loin M cool M hot Mch Mein Mhh Nca Q22 Q71 Rear air mix control servo motor (below rear of center console) Rear cooler relay (on right rear corner of vehicle, in cargo area) Rear evaporator temperature sensor (on rear heater- a/c unit) Red Right kick panel j/b (at right kick panel) Rly Rrao Rrat Rrhi Rrlo Rrme Rrmgv Sgnd Tec Tinh Tph Tset Ver1 Ver2 Ver4 Vmc Vmh
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram (1 of 3) for Lexus LX 470 2003 List of elements for Anti-lock Brakes Wiring Diagram (1 of 3) for Lexus LX 470 2003: 79 (at left rear of engine compt) e8 (in engine harness, at left rear of engine compt) e8 +bi +bo A39 A42 A43 A44 A45 A46 Abs & ba & trac & vsc actuator (at left rear corner of engine compt) Abs & ba & trac & vsc ecu (behind left side of dash) Abs 1 fuse 50a Abs 2 fuse 40a Abs mtr 1 relay Abs mtr 2 relay Abs sol relay Afs+ Afs- Ast B20 B22 Bm1 Bm2 Braided Ecu-b2 fuse 10a Ee (at left side of engine compt) Electronic suspension system Engine room r/b (integral to engine room junction block) Fl+ Fl- Fr+ Fr- Fss Gauge 2 fuse 10a Gnd Gnd1 Gnd2 Hot at all times Hot in on or start If (behind left side of dash) Ig2 Ign fuse 7.5a Lbl Left kick panel j/b (at left kick panel) Met fuse 7.5a Mr1 Mr2 Mss Mt+ Mt- Mtt Phg Plg Pmc Pnk Q36 R1+ R2+ Red Red braided Right kick panel j/b (at right kick panel) Sa1 Sa2 Sa3 Sflh Sflr Sfrh Sfrr Srlh Srlr Srrh Srrr Str Trig Vcm Vsc+ Vsc- Wahc Anti-lock Brakes Wiring Diagram (2 of 3) for Lexus LX 470 2003 List of elements for Anti-lock Brakes Wiring Diagram (2 of 3) for Lexus LX 470 2003: 47 (on brake master cylinder) master cylinder pressure sensor (on inside of left front wheel) left front abs speed sensor (on inside of right front wheel) right front abs speed sensor +bi Afs+ Afs- B18 Braided C12 C13 C14 C15 C16 C18 C19 D11 D13 D31 D35 Ecu-ig1 fuse 10a Flo Fro Gnd Hot at all times Hot in on or start J/b 5 (behind left side of dash) J/b 6 (behind right side of dash, near engine control module) Junction connector 2 Left kick panel j/b (at left kick panel) Left rear abs speed sensor (on inside of left rear wheel) Park/neutral position switch (on right side of transmission) Pnk Red Red braided Right rear abs speed sensor (on inside of right rear wheel) Ss1+ Ss1- Steering sensor Stop fuse 15a Stoplight switch (on bracket, above brake pedal) Trig Vcc Vgrs ecu (behind left side of dash) Vout Vsc warning buzzer (behind left side of dash, near base of "a" pillar) Vsc+ Vsc- Anti-lock Brakes Wiring Diagram (3 of 3) for Lexus LX 470 2003 List of elements for Anti-lock Brakes Wiring Diagram (3 of 3) for Lexus LX 470 2003: 75 A11 A40 A41 Abs & ba & trac & vsc ecu (behind left side of dash) Abs ind Active trac ind (except usa) Ahco B14 B18 Braided Brake ind Brl C14 C15 C16 C17 Combination meter D/g D12 Data link connector (dlc) 1 (on right inner fender panel) Data link connector (dlc) 3 (behind left side of dash, right of steering column) E10 Ec (at rear of right cylinder head) Ee (at left front of engine compt) Electronic suspension system Eng+ Eng- Engine control module (behind right side of dash) Exi Exi2 Flo Fro Gl1 Gl2 Gnd3 Gnd4 Gss Gyaw If (behind left side of dash) Ig1 Ind Ind vsc off Ind vsc trac Infr J/b 5 (behind left side of dash) J/b 7 (behind right side of dash) K27 Left kick panel j/b (at left kick panel) Neo Parking brake switch (on base of park brake lever) Pkb Q26 Q27 Red Right kick panel j/b (at right kick panel) Rl+ Rl- Rr+ Rr- Rss Sil Slip ind Ss1+ Ss1- Stp Trac ind (usa) Transmissions system Trc+ Trc- Vscw Vys Yaw Yaw rate sensor (below center of dash, forward of gear selector) Yaw2 Yss
ANTI-THEFT Immobilizer Wiring Diagram for Lexus LX 470 2003 List of elements for Immobilizer Wiring Diagram for Lexus LX 470 2003: 52 (at left kick panel) (behind right side of dash) transponder key computer Agnd Ant1 Ant2 Code Cty D10 D12 D18 Data link connector (dlc) 3 (behind left side of dash, right of steering column) E16 E18 E19 E23 E25 E27 Ecu-b2 fuse 10a Efii Efio Engine control module (behind right side of dash) Gnd Gnd1 gnd2 Hot at all times Hot in on or start Ign fuse 7.5a Ii (behind right side of dash) Imi Imo Ind J/b 4 (behind upper center of dash) J/b 7 (behind right side of dash) J/c 16 K10 Ksw Left front door courtesy switch Left kick panel j/b Left kick panel j/b (at left kick panel) Lp scty M15 M16 Multi-display Q22 Q71 Right kick panel j/b (at right kick panel) Sil Transponder key amplifier (behind left center of dash) Txct Unlock warning switch Vc5 W/ navigation system W/o navigation system Power Door Locks Wiring Diagram (1 of 3) for Lexus LX 470 2003 List of elements for Power Door Locks Wiring Diagram (1 of 3) for Lexus LX 470 2003: 78 (at right kick panel) right kick panel j/b (in body harness, above left rear wheelwell) (in body harness, at kick panel, at rear of left front door) (in body harness, in tailgate) b14 (under front of right front seat) bk Acc Acc fuse 7.5a Act+ Act- Actd B10 B10 (in body harness, above left rear wheelwell) B21 B22 B24 B49 B58 Back door lock motor & door unlock detection switch Bdr1 Body ecu (at left kick panel) Dcty Door fuse 25a E39 E40 E42 Ecu-ig1 fuse 10a Engine room j/b (on left inner fender panel) G11 Head relay Headlights system Horn fuse 10a Horn relay Horns system Hot at all times Hot in acc or on Hot in on or start Hrly Idl J/b 5 (behind left side of dash) J13 J14 Junction connector (at left rear wheelwell) K25 K29 K34 K38 K42 Left front door lock motor & door unlock detection switch Left kick panel j/b (at left kick panel) Left rear door lock motor & door unlock detection switch Left rear power window control switch Lsr Lswp Mpx1 Mpx4 Mpx5 Mpx6 Pcty Q10 Q11 Q21 Q30 Q35 Q41 Q42 Right front door lock motor & door unlock detection switch Right front power window control switch Right kick panel j/b (at right kick panel) Right rear door lock motor & door unlock detection switch Right rear power window control switch Rlcy Rrcy Sig Tail fuse 25a Tail relay Trly Ul1 Ul2 Power Door Locks Wiring Diagram (2 of 3) for Lexus LX 470 2003 List of elements for Power Door Locks Wiring Diagram (2 of 3) for Lexus LX 470 2003: 50 (behind left side of dash) tilt & telescopic ecu (under front of center console) center airbag sensor assembly A40 B10 B2 (in body harness, in left front door) Back door key lock & unlock switch Bdr Bj (under left front seat) Cpub D12 D13 D41 Dome fuse 10a E15 E42 Ecu-b2 fuse 10a Engine room j/b (on left inner fender panel) Gauge2 fuse 10a Generator Gnd Hot at all times If (behind left kick panel) Ii (behind right side of dash) J/b 6 (behind right side of dash, near engine control module) K10 K24 K26 Keye Kul Left door key lock & unlock switch Left front door courtesy switch Left kick panel j/b (at left kick panel) Left rear door courtesy switch Lswe Mpx1 Mpx2 P/w (fl) fuse 20a Park/ neutral position switch (on right side of transmission) Power window master switch Q12 Q17 Q71 Q72 Right door key lock & unlock switch Right door lock control switch Right front door courtesy switch Right kick panel j/b (at right kick panel) Right rear door courtesy switch Security fuse 7.5a Sig Power Door Locks Wiring Diagram (3 of 3) for Lexus LX 470 2003 List of elements for Power Door Locks Wiring Diagram (3 of 3) for Lexus LX 470 2003: 85 (at left kick panel) body ecu (at right front of engine compartment) ea +b1 +b2 B12 B21 Back door courtesy switch Bcty Becu Bus Bzr Bzr2 D10 D12 D14 Data link connector (dlc) 3 (behind left side of dash, right of steering column) Dome relay Door control receiver (at left "d" pillar) Dswh E10 E12 E13 E18 E20 E23 E36 Ehw Engine hood courtesy switch (on top center of radiator support) Gnd Gnd1 Gnd2 Haz Horn If (behind left kick panel) Ig (behind left side of dash) Ii (behind right side of dash) Ind Instrument cluster system Interior lights J/b 4 (behind upper center of dash) J/b 7 (behind right side of dash) J/c 18 (behind right center of dash, near windshield) Junction connector 16 (behind upper right side of dash) Junction connector 18 (behind right center of dash, near windshield) Junction connector 23 (at left rear wheelwell) Ksw L20 Left kick panel j/b (at left kick panel) Lmry M12 Moon roof control ecu (on roof, in front of moon roof) Mpx1 Mpx2 Mpx3 Multi- display Obd2 Prg Q20 Q22 Q25 Q26 Q70 Q73 Q74 Q76 Q78 Q79 Q82 Q84 Rda Rev Right kick panel j/b (at right kick panel) Scty Sh- Sil Spd System Tac Theft deterrent ecu (behind center of dash) Theft deterrent horn (on right side inner fender panel) Turn signal flasher (behind left side of dash) Unlock warning switch W/ navigation system W/o navigation system Wireless door lock buzzer (at rear of left front fender)
BODY CONTROL MODULES Body Control Modules Wiring Diagram (1 of 2) for Lexus LX 470 2003 List of elements for Body Control Modules Wiring Diagram (1 of 2) for Lexus LX 470 2003: 71 Acc Acc fuse 7.5a Act+ Act- Actd B12 B21 B24 Bdr1 Bdsu Body ecu Bzr Bzr2 Computer data lines system Cruise control system D35 Dbkl Dcyl Def Door fuse 25a Door locks system Drl E11 Ecu-ig1 fuse 10a Electronic suspension system Els1 Engine controls system Exterior lights system G11 Gnd1 Gnd2 Haz Headlights system Hot at all times Hot in acc or on Hot in on or start Hrly Idl Idle up fuse 7.5a Interior lights system K23 K25 K29 K35 K38 K42 Left kick panel j/b (at left kick panel) Lmry Lsr Lswp Memory systems Mpx1 Mpx2 Mpx4 Pcyl Power windows system Q10 Q11 Q25 Q46 Q70 Red Sig Spd Starting/charging system Stp1 Trly Ul1 Ul2 Warning system Wiper/washer system Body Control Modules Wiring Diagram (2 of 2) for Lexus LX 470 2003 List of elements for Body Control Modules Wiring Diagram (2 of 2) for Lexus LX 470 2003: 83 Acan Air conditioning system B10 Bcty Becu Bj (under left front seat) Body ecu Bstp Btil Cltb Clte Clts Computer data lines system Cspt Dcty Dcy2 Door locks system Drlp E15 Ecu-b2 fuse 10a Exterior lights system Gill Gnd Head Headlights system Hf2 Hot at all times Hot in on or start Ile Ilen Instrument cluster system Interior lights system K15 K20 Ksw L/fs L16 Lcyl Left kick panel j/b (at left kick panel) Lspt Mpx+ Mpx3 Mpx5 Mpx6 Obd2 Overhead j/b (at front center of roof) Pcty Pkb Pnk Power windows system Prg Q22 Q26 Q71 Rbd1 Rbd2 Rcyl Rda Red Rev Right kick panel j/b (at right kick panel) Rlcy Rr wiper fuse 15a Rrcy Rspt Rwlm Rwsm S/m S26 S27 Sig Stp1 Stp2 Sub body ecu (at left rear quarterpanel) Tail Til1 Til2 Transmissions system Warning system Wiper/washer system Wrin Wrlo Wrsw
COMPUTER DATA LINES Data Link Connector Wiring Diagram for Lexus LX 470 2003 List of elements for Data Link Connector Wiring Diagram for Lexus LX 470 2003: 63 (at rear of right (behind right side of dash) ii A/b A40 Abs & ba & trac & vsc ecu (behind left side of dash) B22 Bat Body ecu (at left kick panel) C/opn relay C10 C32 Center air bag sensor assembly (under front of center console) Combination meter Cylinder head) D/g D12 D14 D18 D19 D20 D22 Data link connector (dlc) 1 (on right inner fender panel) Data link connector (dlc) 3 (behind left side of dash, right of steering column) E10 E11 E12 E13 E14 E17 E20 E21 Eb (at right side of Engine compt) Engine control module (behind right Engine room r/b (integral to engine room junction block) F10 Hot at all times Hot in on or start Ign fuse 7.5a J/b 4 (behind upper center of dash) J/b 7 (behind right side of dash) Left kick panel j/b (at left kick panel) Multi-display Obd 2 fuse 7.5a Obd2 Of dash) Q11 Q14 Q53 Q73 Rev Right kick panel j/b (at left kick panel) Right kick panel j/b (at right kick panel) Side of dash) Sil Suspension control ecu (behind left center of dash) Tac Tach Theft deterrent ecu (behind center Transponder key computer (behind center V11 Vgrs ecu (behind left side of dash) Wfse High/Low Bus Wiring Diagram for Lexus LX 470 2003 List of elements for High/Low Bus Wiring Diagram for Lexus LX 470 2003: 64 (behind center of dash) (behind left (behind left side of dash) (behind right (on roof, in front of moon roof) moon roof control ecu (under center console) (under front of A/c control A10 Assembly (w/ navigation system) Auto wiper ecu B21 Body ecu (at left kick panel) Bus C12 Center Center air bag Center console) Combination meter Control switch D12 D34 D40 D41 E24 E41 Engine control module (behind right side of dash) Gateway ecu J/b 4 (behind upper center of dash) J/c 18 K14 L20 Left kick panel j/b (at left kick panel) Left rear power window Master switch Mayday ecu Mpd1 Mpd2 Mpx Mpx+ Mpx- Mpx1 Mpx2 Mpx3 Mpx4 Mpx5 Mpx6 Of dash) Of moon roof) Power window Q37 Q66 Rain sensor (on roof, in front Remote control mirror ecu (behind left side of dash) Right front power window Right kick panel j/b (at right kick panel) Right rear power window Seat ecu Sensor assembly Side of dash) Sub body ecu (at left rear quarterpanel) Telescopic ecu Theft deterrent ecu Tilt &
CRUISE CONTROL
DEFOGGERS Heated Mirrors Wiring Diagram for Lexus LX 470 2003 List of elements for Heated Mirrors Wiring Diagram for Lexus LX 470 2003: 29 A/c control assembly A47 A49 B13 B48 B66 Bk (under front of right front seat) D20 Engine room j/b (on left inner fender panel) F10 G12 Gnd Hot at all times Hot in on or start J/b 4 (behind upper center of dash) J/b 5 (behind left side of dash) Junction connector 14 (behind left center of dash, near windshield) Junction connector 24 (at right rear wheelwell) Left kick panel j/b (at left kick panel) Left remote control mirror Mir htr fuse 15a Mir htr relay Mrrhr Red Right kick panel j/b (at right kick panel) Right remote control mirror Ver1 Ver2 Ver4 Rear Defogger Wiring Diagram for Lexus LX 470 2003 List of elements for Rear Defogger Wiring Diagram for Lexus LX 470 2003: 33 (at left rear quarterpanel) bm (under front of right front seat) bk A/c control assembly A47 A49 B13 B14 Body ecu (at left kick panel) C10 D24 Def Defog fuse 20a Defogger relay Els Engine control module (behind right side of dash) Esl1 F10 Gnd Hot at all times Hot in on or start Idle up fuse 7.5a If (behind left kick panel) J/b 4 (behind upper center of dash) J/b 5 (behind left side of dash) Junction connector 14 (behind left center of dash, near windshield) Junction connector 24 (at right rear wheelwell) K31 Left kick panel j/b (at left kick panel) Rdfgr Rear window defogger Ver1 Ver2 Ver4
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram for Lexus LX 470 2003 List of elements for Electronic Power Steering Wiring Diagram for Lexus LX 470 2003: 68 (behind left side of dash) vgrs ecu (behind upper left side of dash) j/b 5 +b1 +bo A41 A42 Abs & ba & trac & vsc ecu (behind left side of dash) Afs+ Afs- Bat C11 C12 C13 C14 C15 C16 C17 C18 C19 Combination meter Computer data lines system D16 D28 D29 D30 D32 D33 D34 D35 E31 E34 Ec (at rear of right cylinder head) Ecu-ig1 fuse 10a Ess Flo Fro Gnd Gnd2 Hot at all times Hot in on or start Ig1 Junction connector 9 Left kick panel j/b (at left kick panel) Met fuse 7.5a Pgnd Pig Q16 Q23 Right kick panel j/b (at right kick panel) Sil Ss1 Ss1+ Ss1- Ss2 Ss2+ Ss2- Ss3 Steering sensor Suspension control ecu (behind left center of dash) Ta+ Ta- Trig V10 V11 Vgrs fuse 40a Vgrs ind Vsc+ Vsc-
ELECTRONIC SUSPENSION Electronic Suspension Wiring Diagram (1 of 2) for Lexus LX 470 2003 List of elements for Electronic Suspension Wiring Diagram (1 of 2) for Lexus LX 470 2003: 91 (at left kick panel) body ecu (at left kick panel) left kick panel j/b (behind left side of dash) vgrs ecu (behind left side of dash, below steering column) ahc main relay (behind upper center of dash) j/b 4 (on bracket, above brake pedal) stoplight switch Ahc fuse 50a Ahc relay Ahc-b fuse 15a Ahc-ig fuse 20a Anti-lock brakes system B b B39 B42 C15 C17 Combination meter D12 D15 D18 D21 D22 D31 D35 Damping mode select & height control switch Dnsw Door Drlp E19 E32 E33 E34 E35 Ec (at rear of right cylinder head) Ee (at left side of Electronic power steering system Engine compt) Engine room j/b (on left inner fender panel) Engine room r/b (integral to engine room junction block) Exi Flo Fro Gauge 1 fuse 10a Gnd Hot at all times Hot in on or start Ill Interior lights system J/b 4 (behind upper center of dash) J/b 5 (behind left side of dash) J/c 18 (behind right center of dash, near windshield) J/c 9 L4sw Left kick panel j/b (at left kick panel) Mod2 Mod4 Mrly Nsw Off Pacc Q22 Q65 Red Reg Right kick panel j/b (at right kick panel) Shb Shfl Shfr Shg Shrr Sil Slac Slb Slfg Slfl Slrg Slrl Speedometer Ss2+ Ss2- Starting/charging system Stop fuse 15a Stp Suspension control ecu (behind left center of dash) Ta+ Ta- Toil Transmissions system Tsw1 Tsw2 Upsw Electronic Suspension Wiring Diagram (2 of 2) for Lexus LX 470 2003 List of elements for Electronic Suspension Wiring Diagram (2 of 2) for Lexus LX 470 2003: 56 Accumulator solenoid (at base of left "b" pillar) Ahc pump motor (at right rear of engine compt) Ahc temperature sensor (in right rear of engine compt) B11 B11 (in body harness, under rear seat) B11 (under rear seat) Bm (at left rear quarterpanel) C12 C13 C14 C15 C16 C17 C18 C19 Control valve assembly (on left side of vehicle, near driver's seat) D27 D28 D29 D30 D31 D32 D33 D34 D35 D36 D37 Data link connector (dlc) 1 (on right inner fender panel) Data link connector (dlc) 3 (behind left side of dash, right of steering column) E35 Ecu-b2 fuse 10a Fa+ Fa- Fb+ Fb- Fluid pressure sensor (in right rear corner of engine compt) Gnd Hot at all times J/b 7 (behind right side of dash) J/c 7 (forward of instrument cluster) Left front damping force control actuator (on left front suspension assembly) Left front height control sensor (on left inner fender panel) Left rear damping force control actuator (on left rear suspension assembly) Q44 Ra+ Ra- Rb+ Rb- Rear height control sensor (above left rear wheelwell) Red Right front damping force control actuator (on right front suspension assembly) Right front height control sensor (on right front inner fender panel) Right kick panel j/b (at right kick panel) Right rear damping force control actuator (on right rear suspension assembly) Sil Suspension control ecu (behind left center of dash)
ENGINE PERFORMANCE
4.7L 4.7L, Engine Performance Wiring Diagram (1 of 6) for Lexus LX 470 2003 List of elements for 4.7L, Engine Performance Wiring Diagram (1 of 6) for Lexus LX 470 2003: 89 (behind left side of dash) (left front of engine) crankshaft position sensor (on right side of transmission) park/neutral position switch (on right side of transmission) transfer l position detection switch (rear of right cyl head) (rear of right cyl head) ec (top left side of engine) camshaft position sensor +b2 A/c system Abs & ba & trac & vsc ecu (behind left side of dash) Accel position sensor (under left side of dash) Batt Body ecu (at left kick panel) C10 C13 C15 C16 C17 C18 C19 C20 Computer data lines system D12 D13 D17 D22 D27 D28 D30 D31 D34 E03 E10 Ec (rear of right cyl head) Els Els1 Eng+ Eng- Engine control module (ecm) (behind right side of dash) Eom Ep1 Ep2 Epa Epa2 F/ps G2+ G2- Gauge 2 fuse 10a Ge01 Gnd Hot in on and start Igsw Inj 7 Inj 8 J/b 5 J/b 5 (behind left side of dash) J/b 6 (behind right sid of dash) J/b 6 (behind right side of dash) J/c 17 (behind right center of dash) Lcki Left kick panel j/b Me01 Mrel Nca Ne+ Ne- Neo Ptnk Red Right kick panel j/b (at right kick panel) Sil Slu+ Slu- Starting/ charging system Stsw Tach Tbp Tfn Transfer neutral position detection switch (on right side of transmission) Trc+ Trc- Vapor pressure sensor (on fuel tank) Vcc Vcp1 Vcp2 Vpa1 Vpa2 Vsv (pressure switching valve) Wfse 4.7L, Engine Performance Wiring Diagram (2 of 6) for Lexus LX 470 2003 List of elements for 4.7L, Engine Performance Wiring Diagram (2 of 6) for Lexus LX 470 2003: 39 (engine harn, (engine harn, left rear of engine compt) e8 (engine harn, left side of engine compt) (engine harn, right rear of engine) Acc cut relay B10 C/opn relay D13 D15 D16 D31 D34 D36 Ea (right front of engine compt) Ec (rear of right cyl head) Efi or ecd 2 fuse 10a Efi or ecd relay Engine room r/b (integral to engine room j/b) Fuel pump (in fuel tank) Fuel pump relay Fuel pump resistor (right side of engine compt) Heated oxygen sensor (bank 1 sensor 1) (on exhaust pipe, left rear of engine) Heated oxygen sensor (bank 1 sensor 2) (on exhaust pipe, left underside of vehicle) Heated oxygen sensor (bank 2 sensor 1) (on exhaust pipe, right side of engine) Heated oxygen sensor (bank 2 sensor 2) (on exhaust pipe, right underside of vehicle) Hot at all times If (behind left kick panel) J/b 5 (behind right side of dash) J/c 17 (behind right center of dash) K16 Left kick panel j/b Left kick panel j/b (at left kick panel) Left rear of engine compt) Nca Q45 Q51 Red Right kick panel j/b (at right kick panel) Stop fuse 10a 4.7L, Engine Performance Wiring Diagram (3 of 6) for Lexus LX 470 2003 List of elements for 4.7L, Engine Performance Wiring Diagram (3 of 6) for Lexus LX 470 2003: 47 (at right kick panel) right kick panel j/b Acc B11 B22 D35 E14 E26 Ec (rear of right cyl head) Efi or ecd 1 fuse 25a Engine control module (ecm) (behind right side of dash) Engine room j/b (on left inner] fender panel) Hot at all times Hot in on and start Ht1a Ht1b Ht2a Ht2b Ign fuse 7.5a Ignition switch Inj 6 J/b 5 (behind left side of dash) J/c 17 (behind right center of dash) J/c 8 (behind left side of dash) Knk1 Knk2 Knock sensor 1 (top left of engine block) Knock sensor 2 (top right of engine block) Left kick panel j/b (at left kick panel) Lock Nca Ox1a Ox1b Ox2a Ox2b Red Right kick panel j/b (at right kick panel) Sl1+ Sl1- Sl2+ Sl2- Slt+ Slt- Star Start Stoplight switch (on bracket, above brake pedal) Th01 Th02 4.7L, Engine Performance Wiring Diagram (4 of 6) for Lexus LX 470 2003 List of elements for 4.7L, Engine Performance Wiring Diagram (4 of 6) for Lexus LX 470 2003: 34 (at left kick panel) left kick panel j/b (engine harn, on top of transmission) e5 (engine harn, right rear of engine) (on left side of transmission) vehicle speed sensor 2nd strt ind A/t oil temp ind At/ p C14 C15 C17 Combination meter Cpu D32 Ec (rear of right cyl head) Ect pwr ind Electronically controlled transmission solenoid (on left side of transmission) Hot in on and start Met fuse 7.5a Mil ind Ot+ Ot- Ot2+ Ot2- Q78 Red Right kick panel j/b (at right kick panel) Sl2+ Sl2- Slt+ Slt- Slu+ Slu- Speedometer Tachometer 4.7L, Engine Performance Wiring Diagram (5 of 6) for Lexus LX 470 2003 List of elements for 4.7L, Engine Performance Wiring Diagram (5 of 6) for Lexus LX 470 2003: 32 (engine harn, left rear of engine compt) e8 (engine harn, right rear of engine compt) (engine harn, right rear of engine compt) e4 (on intake, next to air cleaner box) mass airflow (maf) meter (on upper left side of engine) (ignition) noise filter 2nd strt D10 E18 E2g E7 (engine harn, at top left of engine) Ec (rear of right cyl head) Electronically controlled transmission pattern select switch Engine coolant temperature sensor (on top front of engine) If (behind left kick panel) 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 J/b 5 (behind upper left side of dash) J/b 6 (behind upper left side of dash) Left kick panel j/b M10 Pwr Red Right kick panel j/b (at right kick panel) Tha Vsv (canister closed valve) (left side of engine compt) Vsv (evap) (on left side of engine) 4.7L, Engine Performance Wiring Diagram (6 of 6) for Lexus LX 470 2003 List of elements for 4.7L, Engine Performance Wiring Diagram (6 of 6) for Lexus LX 470 2003: 94 (engine harn, at top left of engine) (engine harn, right rear of engine compt) (on right side of transmission) (on throttle body) throttle control motor & position sensor (rear of right cyl head) +bm A/c system A/cs Accr Acld At4 Atc C12 Ccs Ccv Cruise control system D14 D15 E01 E02 E24 E28 E2g Efii Efio Engine control module (ecm) (behind right side of dash) Engine room j/b (on left inner fender panel) Etcs fuse 10a Fpr Fuel inj 1 Fuel inj 2 Fuel inj 3 Fuel inj 4 Fuel inj 5 Fuel inj 6 Fuel inj 7 Fuel inj 8 Hot at all times If (behind left kick panel) Igf1 Igf2 Igt1 Igt2 Igt3 Igt5 Igt6 Igt7 Igt8 Imi Imo Inj 1 Inj 2 Inj 3 Inj 4 Inj 5 J/b 4 (behind upper center of dash) J/b 6 (behind right side of dash) J/c 17 (behind right center of dash) J/c 18 (behind right center of dash) Left kick panel j/b Left kick panel j/b (at left kick panel) M15 M16 Mpx1 Mpx2 Nssd Nssl Nsw P/n P10 P12 P13 P14 Park/neutral position switch Prg Pwr Q66 Q70 Red Right kick panel j/b (at right kick panel) Right side of dash) Shift lock control ecu (below center of dash) Snwi Spd St1 Sta Stp Tha The Thw Thwo Transponder key computer (behind upper Vta1 Vta2
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Lexus LX 470 2003 List of elements for Back-up Lamps Wiring Diagram for Lexus LX 470 2003: 15 B10 (in body harness, above left rear wheelwell) B17 B17 (in body harness, at right rear of luggage compt) Back-up light Bm (at left rear quarterpanel) E38 Gauge 2 fuse 10a Hot in on or start K39 Left kick panel j/b (at left kick panel) Left rear combination light (inner) Park/neutral position switch (on right side of transmission) Right kick panel j/b (at right kick panel) Right rear combination light (inner) Trailer socket Exterior Lamps Wiring Diagram (1 of 2) for Lexus LX 470 2003 List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Lexus LX 470 2003: 68 (in body harness, in tailgate) b14 A30 A36 A37 A43 A47 A50 A59 At right rear of luggage compt) B10 B13 B14 B17 B17 (in body harness, B24 B35 B37 B39 B40 B49 B58 B60 Bj (under left front seat) Bk (under front of right front seat) Bm (at left rear quarterpanel) Body ecu (at left kick panel) Bstp Btil Combination switch E35 Ea (at right front of engine compt) Ee (at left side of engine compt) Engine room j/b (on left inner fender panel) F16 Fusible link block (at left side of engine compt, near battery) Haz Head Hot at all times Idl J/b 1 fuse 120a J/b 5 (behind left side of dash) Junction connector 7 (behind left side of dash, forward of instrument cluster) Left front turn signal light Left kick panel j/b (at left kick panel) Left license plate light Left parking light Light control switch Off Q25 R12 R13 Right front turn signal light Right kick panel j/b (at right kick panel) Right license plate light Right parking light Right rear combination light S26 Stop Stp1 Stp2 Sub body ecu (at left rear quarterpanel) Tail Tail fuse 15a Tail relay Til1 Til2 Trly Turn Exterior Lamps Wiring Diagram (2 of 2) for Lexus LX 470 2003 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Lexus LX 470 2003: 67 (in body harness, above left rear wheelwell) b10 (in body harness, at right rear quarterpanel) A/c control assembly (w/o navigation system) A12 A13 A47 A49 B10 B14 B15 B17 B24 B65 Bj (under left front seat) Bm (at left rear quarterpanel) C11 C14 C17 C18 Center cluster integration panel (w/ navigation system) Combination meter Combination switch D25 D31 D35 E18 E26 E31 E32 E35 E36 Ec (at rear of right cylinder head) Ecu-ig2 fuse 10a Ehw Engine room j/b (on left inner fender panel) Gnd Haz- trn fuse 15a High mounted stop light Hot at all times Hot in run or start Hzr J/b 6 (behind right side of dash, near engine control module) Junction connector 14 (behind left center of dash, near windshield) Junction connector 7 (behind left side of dash, forward of instrument cluster) K35 K40 Left kick panel j/b (at left kick panel) Left rear combination light Left turn ind M14 Q39 Q78 R10 R11 Right kick panel j/b (at right kick panel) Right turn ind Stop Stop fuse 15a Stoplight switch (on bracket, above brake pedal) Tail Towing brake controller Towing converter relay (on left rear of cargo area) Turn Turn signal flasher (behind left side of dash) Turn signal switch W/ navigation W/o navigation Trailer Tow Wiring Diagram for Lexus LX 470 2003 List of elements for Trailer Tow Wiring Diagram for Lexus LX 470 2003: 47 (at left kick panel) (at right kick panel) right kick panel j/b A12 B15 B61 B67 B69 B72 Batt charge fuse 30a Bk (under front of right front seat) Brk C11 D31 D35 E26 E31 E34 E38 Engine room j/b (on left inner fender panel) Gauge 2 fuse 10a Gnd Hot at all times Hot in on or start Hot w/ tail relay energized Ii (behind right side of dash) J/b 6 (behind right side of dash, near engine control module) K35 K39 K40 Left kick panel j/b Left kick panel j/b (at left kick panel) M14 Park/neutral position switch (on right side of transmission) Red Right kick panel j/b (at right kick panel) Stop Stop fuse 15a Stoplight switch (on bracket, above brake pedal) Tail Tail fuse 15a Towing brake controller Towing brk fuse 30a Towing converter relay (on left rear of cargo area) Towing fuse 30a Towing tail fuse 30a Trailer socket Turn signal flasher (behind left side of dash)
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 4) for Lexus LX 470 2003 List of elements for Ground Distribution Wiring Diagram (1 of 4) for Lexus LX 470 2003: 91 A/c control assembly A39 A40 A43 A44 A46 A49 A51 Abs & ba & trac & vsc actuator Abs & ba & trac & vsc ecu Acc relay Air vent mode control servo motor Auto antenna control relay Auto wiper ecu B13 B2 (body harness, in left front door) B3 (body harness, at kick panel, near middle of left front door) B5 (body harness, at center of windshield header) Body ecu C11 Center cluster integration panel Cigarette lighter D18 D22 D23 Damping mode select switch & height control switch Data link conn 3 Defog relay Driving position memory switch E10 E18 E22 E34 E8 engine harness, at left rear of engine compt) Ee (left side of engine compartment) Electronically controlled transmission pattern select switch Engine control module From a on a this page From d on page 2 of 4 From e on page 2 of 4 From g on b this page Front interior light, rear personal light Front personal light Front power outlet Fuel pump I2 (dash harn, behind left side of dash) Ign no.2 relay Inner mirror J/b n0.4 (behind upper left side of dash) Junction connector j14 (behind upper right side of dash) Junction connector j15 & j16 (behind upper right side of dash) Junction connector j9 (behind upper center of dash) K33 Key interlock solenoid L11 L14 Left door key lock & unlock switch Left door lock motor, left front door unlock detection switch Left kick panel j/b (left kick panel) Left rear power window control switch Left remote control mirror Left vanity mirror M10 M11 Mayday ecu Moon roof control ecu Moon roof control switch Night view ecu Overhead j/b Power window master switch Q20 Q23 Q43 Rain sensor Rear heater power transistor Remote control mirror ecu Right kick panel j/b (right kick panel) Right vanity mirror Seat ecu Shift lock control ecu Steering sensor Suspension control ecu Theft deterrent ecu To a on this page To b on this page To c on page 2 of 4 Transponder key computer Unlock warning switch V10 V11 Vgrs ecu Ground Distribution Wiring Diagram (2 of 4) for Lexus LX 470 2003 List of elements for Ground Distribution Wiring Diagram (2 of 4) for Lexus LX 470 2003: 87 A23 A24 A30 A34 A36 A37 A42 A43 A45 A52 A53 Ahc relay B10 (body harness, above left rear wheelwell) B11 (body harness, under rear seat) B14 (body harness, in tailgate) B17 (body harness, at right rear of luggage compartment) B35 B39 B4 (body harness, at kick panel, at rear of left front door) B40 B42 B43 B44 B56 Back door courtesy switch Back door key unlock and lock switch Back door lock motor, back door unlock detection switch Bj (under left front seat) Bm (at left rear quarter panel) Daytime running light relay no.3 Door control receiver Driver side j/b (behind lower left end of dash) E1 (engine harness, behind right headlight) E10 (engine harness, behind left headlight) Ea (at right front of engine compartment) Efi or ecd relay Engine hood courtesy switch Engine room j/b Engine room relay block Exhaust gas sensor From c on page 1 of 4 From g on page 3 of 4 Glove box light Headlight cleaner control relay Headlight cleaner motor High mounted stop light Htr relay I3 (dash harness, behind left side of dash) Ig1 no.1 relay Junction connector j19 (behind right side of dash) Junction connector j23 (at left rear wheelwell) Left buckle switch Left front damping force control actuator Left front fog light Left front turn signal light Left headlight (high) Left headlight (low) Left license plate light Left parking light Left power quarter window switch Left rear combination light Left rear damping force control actuator Luggage compartment power outlet Night view switch Pressure switch Rear left door lock motor, rear left door unlock detection switch Rear window defogger Rear wiper motor Remote control mirror switch Rheostat Right front damping force control actuator Right front fog light Right front turn signal light Right headlight (high) Right headlight (low) Right license plate light Right parking light Right power quarter window switch Right rear combination light Right rear damping force control actuator Roll sensing of curtain shield airbag cutoff switch Starter relay Sub body ecu To d on page 1 of 4 To e on page 1 of 4 To f on page 3 of 4 Washer level warning switch Ground Distribution Wiring Diagram (3 of 4) for Lexus LX 470 2003 List of elements for Ground Distribution Wiring Diagram (3 of 4) for Lexus LX 470 2003: 79 A/c amplifier A/c amplifier shields A/c control assembly A49 Ahc main relay Ahc pump motor Auto antenna motor Auto antenna motor shields B13 (body harness, above right rear wheelwell) B26 (body harness, (below right front seat) B7 (body harness, in right front door) B9 (body harness, at kick panel, at rear of right front door) Bk (under front of right front seat) Blower motor controller Center diff lock control relay Combination switch D10 D16 D18 D42 Data link conn 1 Driver's seat heater switch Dvd automatic changer E2 (engine harness, at right rear of engine compt) E34 E35 Eb (right side of engine compt) F10 From f on page 2 of 4 From h on h this page Front passenger's seat heater switch Front right power seat control switch Front right seat cushion heater Front suspension control ecu Front wiper motor Gateway ecu I6 (dash harness, behind left side of dash) Ign no.3 relay J/b (right kick panel) J/b no.4 (behind upper center of dash) Junction connector j1 (behind left side of dash) Junction connector j10 & j11 (behind upper left center of dash) Junction connector j15 & j16 (behind upper right side of dash) Junction connector j22 (behind upper right side of dash) Junction connector j24 (at right rear wheelwell) Junction connector j7 (behind left side of dash) Junction connector j9 (behind upper center of dash) K31 M12 Mayday ecu shields Middle of rear bumper) Multi- display Navigation ecu Navigation ecu shields Q58 Rear console power outlet Rear cooler power transistor Right door key lock & unlock switch Right door lock control switch Right door lock motor, right front door unlock detection switch Right front power window control switch Right kick panel Right kick panel j/b (right kick panel) Right rear combination light Right rear door lock motor, right rear door unlock detection switch Right rear power window control switch Right remote control mirror Telescope motor shield Tilt motor shield Tilt & telescope ecu To g on page 2 of 4 To h on this page Towing brake controller Towing converter relay Trailer socket Turn signal flasher Vgrs ecu W/ nav W/o nav Ground Distribution Wiring Diagram (4 of 4) for Lexus LX 470 2003 List of elements for Ground Distribution Wiring Diagram (4 of 4) for Lexus LX 470 2003: 54 A/c lock sensor, a/c magnetic clutch B9 (body harness, at kick panel, at rear of right front door) Bl (under rear of right front seat) Body ecu C17 C32 Camshaft position sensor shield Center airbag sensor assembly Center differental lock control motor Center differental lock detection switch Combination meter Combination switch Crankshft position sensor shield Data link connector 3 E10 E4 (engine harness, at right rear of engine) E6 (engine harness, on top of transmission) Ec (at rear of right cylinder head) Ed (at rear of left cylinder head) Engine control module Gateway ecu Heated oxygen sensor (bank 1 sensor 1) shield Heated oxygen sensor (bank 1 sensor 2) shield Heated oxygen sensor (bank 2 sensor 1) shield Heated oxygen sensor (bank 2 sensor 2) shield Ignition coil and ignitor no.1 Ignition coil and ignitor no.2 Ignition coil and ignitor no.3 Ignition coil and ignitor no.4 Ignition coil and ignitor no.5 Ignition coil and ignitor no.6 Ignition coil and ignitor no.7 Ignition coil and ignitor no.8 Ignition noise filter Junction connector j17 (behind (right center of dash) Knock sensor 1 shield Knock sensor 2 shield Left kick panel j/b (left kick panel) Of engine) Oil pressure sender shield Q14 Q40 Q53 R37 Radio and player Rear seat audio controller Right kick panel j/b (right kick panel) S18 Seat ecu Shielded Stereo component amplifier Sub body ecu Transfer neutral position detection switch Vehicle speed sensor
HEADLIGHTS Headlights Wiring Diagram, with DRL (1 of 2) for Lexus LX 470 2003 List of elements for Headlights Wiring Diagram, with DRL (1 of 2) for Lexus LX 470 2003: 73 (at left kick panel) left kick panel j/b A16 A40 A61 A62 A64 Acc Acc fuse 7.5a Auto Automatic light control sensor (on top right side of dash) B24 B38 B59 Bdr1 Becu Body ecu (at left kick panel) Cltb Clte Clts Combination switch Dcty Dimmer switch Door fuse 25a Drl E10 E11 E14 E18 E23 E35 Ea (at right front of engine compt) Ecu-ig1 fuse 10a Engine room j/b (on left inner fender panel) Exterior lights system Flash Fog light switch Foglight Fr fog fuse 15a Fr fog relay Generator Gnd1 Gnd2 Head Hf2 High Hot at all times Hot in acc or on Hot in on or start Hrly If (behind left kick panel) Ig (behind left side of dash) Interior lights system Junction connector 15 (behind left center of dash, near windshield) Junction connector 3 (behind upper left side of dash) Junction connector 7 (behind left side of dash, forward of instrument cluster) K10 Ksw Left front Left kick panel j/b (at left kick panel) Light control switch Low Off Pkb Q22 Q37 Q53 Red Right front Right kick panel j/b (at right kick panel) Sig Tail Trly Unlock warning switch Headlights Wiring Diagram, with DRL (2 of 2) for Lexus LX 470 2003 List of elements for Headlights Wiring Diagram, with DRL (2 of 2) for Lexus LX 470 2003: 39 (at right front of engine compt) ea (in engine harness, behind right headlight) e1 A12 A19 A22 A24 A26 A30 B10 B13 B22 C14 C16 Combination meter Daytime running light relay 3 (at right side of engine compt) E1 (in engine harness, behind right headlight) Ea (at right front of engine compt) Ecu-b2 fuse 10a Engine room j/b (on left inner fender panel) Head hi relay Head relay Hot at all times Indicator high beam Junction connector 20 (behind right side of dash, near windshield) K27 Left front door courtesy switch Left headlight (high) Left headlight (low) Left kick panel j/b (at left kick panel) Left lower head fuse 10a Left upper head fuse 20a Parking brake switch (on base of park brake lever) Q31 Q71 Right headlight (high) Right headlight (low) Right kick panel j/b (at right kick panel) Right lower head fuse 10a Right upper head fuse 20a Headlights Wiring Diagram, without DRL (1 of 2) for Lexus LX 470 2003 List of elements for Headlights Wiring Diagram, without DRL (1 of 2) for Lexus LX 470 2003: 66 A16 A61 A62 A64 Acc Acc fuse 7.5a Auto Automatic light control sensor (on top right side of dash) B24 B59 Bdr1 Becu Body ecu (at left Cltb Clte Clts Combination switch Dcty Dimmer switch Door fuse 25a Drl E10 E11 E18 E23 E35 Ea (at right front of engine compt) Ecu-ig1 fuse 10a Engine room j/b (on left inner fender panel) Exterior lights system Flash Fog light switch Foglight Fr fog fuse 15a Fr fog relay Gnd1 Gnd2 Head Hf2 High Hot at all times Hot in acc or on Hot in on or start Hrly If (behind left kick panel) Ig (behind left side of dash) Interior lights system Junction connector 15 (behind left center of dash, near windshield) Junction connector 3 (behind upper left side of dash) Junction connector 7 (behind left side of dash, forward of instrument cluster) Kick panel) Ksw Left front Left kick panel j/b (at left kick panel) Light control switch Low Off Q22 Q53 Red Right front Right kick panel j/b (at right kick panel) Sig Tail Trly Unlock warning switch Headlights Wiring Diagram, without DRL (2 of 2) for Lexus LX 470 2003 List of elements for Headlights Wiring Diagram, without DRL (2 of 2) for Lexus LX 470 2003: 36 A12 A19 A22 A23 A24 A26 A30 B10 B13 B22 C14 C17 Combination meter E1 (in engine harness, behind right headlight) Ea (at right front of engine compt) Ec (at rear of right cylinder head) Ecu-b2 fuse 10a Engine room j/b (on left inner fender panel) Head hi relay Head relay High beam indicator Hot at all times Junction connector 20 (behind right side of dash, near windshield) K10 Left front door courtesy switch Left headlight (high) Left headlight (low) Left kick panel j/b (at left kick panel) Left lower head fuse 10a Left upper head fuse 20a Q71 Right headlight (high) Right headlight (low) Right kick panel j/b (at right kick panel) Right lower head fuse 10a Right upper head fuse 20a
HORN Horn Wiring Diagram for Lexus LX 470 2003 List of elements for Horn Wiring Diagram for Lexus LX 470 2003: 15 A15 B21 Combination switch Engine room j/b (on left inner fender panel) Horn Horn fuse 10a Horn relay Horn switch Hot at all times Junction connector 18 (behind right center of dash, near windshield) Left horn Left kick panel j/b (at left kick panel) Q24 Right horn Theft deterrent ecu (behind center of dash)
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram (2 of 2) for Lexus LX 470 2003 List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Lexus LX 470 2003: 70 (except usa) (usa) A11 A12 A22 Abs B11 B13 B14 B15 B16 B17 B18 B19 B33 B63 Beam ind Body ecu (at left kick panel) Brake C18 C19 C20 Center diff lock ind Combination meter D14 D17 Dcy2 Door ind E14 Ec (at rear of right cylinder head) Engine room j/b (on left inner fender panel) From combination meter (diagram 1 of 2) Fuel pump & sender (in fuel tank) Head lh-lwr fuse 10a Head rh-upr fuse 20a Hot w/ head hi relay energized Hot w/ head relay energized Hot w/ tail relay energized Junction connector 17 (behind right center of dash, near windshield) Junction connector 19 (behind right side of dash, near windshield) K13 K19 K21 K27 Left kick panel j/b (at left kick panel) Left turn ind Malfunction indicator lamp Nca Night view ind Oil pressure sender (on lower left front side of engine) Panel fuse 7.5a Parking brake switch (on base of park brake lever) Pkb Q31 Q37 Q42 Q61 Q62 Q63 Q83 Rear light ind Right turn ind Rsca off ind Slip ind Trac ind active trac ind Vgrs ind Vsc off ind Vsc trac ind W/o drl Washer ind Night Vision Wiring Diagram (1 of 2) for Lexus LX 470 2003 List of elements for Night Vision Wiring Diagram (1 of 2) for Lexus LX 470 2003: 76 (behind left kick panel) (behind left side of dash) (j/c 15: behind left center of dash, near windshield) (j/c 16: behind upper right side of dash) 6vout 6vret A54 Auto Automatic light control sensor (on top right side of dash) B18 B51 Becu Body ecu (at left kick panel) Cb+ Cgnd Cltb Clte Clts Cntsv Combination switch Con Cv+ D10 Dimmer switch E10 E11 E35 Ecu-b2 fuse 10a Ecu-ig1 fuse 10a Engine room j/b (on left inner fender panel) Flash Flash low Gauge 1 fuse 10a Gauge 2 fuse 10a Gnd Gnd1 Gnd2 Head Herly Hf2 High Hot at all times Hot in on or start Hrly Ind1 Ind2 J/c 15 & 16 J/c 15 & 16 (j/c 15: (behind left center of dash, near windshield) (j/c 16: behind upper right side of dash) J/c 19 (behind right side of dash, near windshield) J/c 20 (behind right side of dash, near windshield) J/c 7 (behind left side of dash, forward of instrument cluster) J15 J16 Lamp Left kick panel j/b (at left kick panel) Light control switch Low Met fuse 7.5a Nca Night view camera (on roof, in front of moon roof) Night view ecu (behind left side of dash) Night view switch Ntsc Ntscre Nvsw Off Q22 Q43 Q44 Q65 Q71 Red Reo Right kick panel j/b (at right kick panel) Sg2 Sig Tail Night Vision Wiring Diagram (2 of 2) for Lexus LX 470 2003 List of elements for Night Vision Wiring Diagram (2 of 2) for Lexus LX 470 2003: 63 -tl -tr 6vin 6vout A11 B17 B22 B36 Battery ecu C/c fh C/c out C14 C17 Com Combination meter Csync Dim Display E1 (in engine harness, behind right headlight) Ea (at right front of engine compartment) Ec (at rear of right cylinder head) Engine room j/b (on left inner fender panel) Engine room relay block F16 Fusible link block (at left side of engine compt, near battery) Gnd Head lights system Head relay Hot at all times Hot in on or start Hsy Ir relay J/c 18 (behind right center of dash, near windshield) J/c 20 (behind right side of dash, near windshield) Led Left night view projector (at left front of engine compt, below headlight) Lp/f relay Lp1 Lp2 Main fuse 120a Md1 Md2 Ms1 Ms2 Mscom Night view Night view ecu (behind left side of dash) Night view ind Nv ir fuse 20a Polc Pols Right night view projector (at right front of engine compt, below headlight) Short pin (b) Speedometer Tel fuse 7.5a Vdd Vdd2 Vee2 Vehicle speed sensor (combination meter) (on left side of transmission) Vgh Vgl Vsy Wrn
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram (1 of 3) for Lexus LX 470 2003 List of elements for Courtesy Lamps Wiring Diagram (1 of 3) for Lexus LX 470 2003: 66 (in body harness, at kick panel, at rear of left front door) Acc Acc fuse 7.5a B10 B2 (in body harness, in left front door) B3 (in body harness, at red kick panel, near middle of left front door) B7 (in body harness, in right front door) B9 (in body harness, at kick panel, at rear of right front door) Bdr1 Bj (under left front seat) Body ecu (at left kick panel) Dcty Dcyl Door fuse 25a E40 Ecu-ig1 fuse 10a Gnd Gnd1 Gnd2 Hot at all times Hot in acc or on Hot in on or start J13 J14 K22 K23 K29 Lcyl Left front door courtesy light Left front inside door handle illumination Left kick panel j/b (at left kick panel) Left rear door courtesy light Left rear inside door handle illumination Left side step light left & outer foot light Left spot light illumination Lspt Mpx1 Pcty Pcyl Q10 Q11 Q30 Q35 Q41 Q42 Q80 Rbd1 Rbd2 Rcyl Red Right front door courtesy light Right front inside door handle illumination Right kick panel j/b (at right kick panel) Right rear door courtesy light Right rear inside door handle illumination Right side step light right & outer foot light Right spot light illumination Rlcy Rrcy Rspt S26 S27 Sig Sub body ecu (at left rear quarterpanel) Ul1 Ul2 Courtesy Lamps Wiring Diagram (2 of 3) for Lexus LX 470 2003 List of elements for Courtesy Lamps Wiring Diagram (2 of 3) for Lexus LX 470 2003: 41 B10 B2 (in body harness, in left front door) Back door key lock & unlock switch Bdr Bj (under left front seat) Cpub D12 D13 Dome fuse 10a E15 E42 Ecu-b2 fuse 10a Gauge2 fuse 10a Gnd Hot at all times Hot in on or start J/b 6 (behind right side of dash, near engine control module) J/c 23 (at left rear wheelwell) K10 K24 K26 Keye Kul Left door key lock & unlock switch Left front door courtesy switch Left kick panel j/b (at left kick panel) Left rear door courtesy switch Mpx1 P/w (fl) fuse 20a Park/ neutral position switch (on right side of transmission) Power window master switch Q12 Q17 Q71 Red Right door key lock & unlock switch Right door lock control switch Right front door courtesy switch Right kick panel j/b (at right kick panel) Right rear door courtesy switch Sig Courtesy Lamps Wiring Diagram (3 of 3) for Lexus LX 470 2003 List of elements for Courtesy Lamps Wiring Diagram (3 of 3) for Lexus LX 470 2003: 36 (in body harness, at center of windshield header) b5 Back door courtesy switch Bcty Becu Body ecu (at left kick panel) Dome relay Door Door control receiver (at left "d" pillar) E12 E15 E22 Front interior light & rear personal light Front personal light Ignition key cylinder light Ile J/c 18 (behind right center of dash, near windshield) J/c 23 (at left rear wheelwell) K22 L11 L18 Left kick panel j/b (at left kick panel) Left vanity light Lmry Mpx1 Mpx3 Off Prg Q13 Q22 Q27 Q79 Rda Rear interior light Red Right vanity light Theft deterrent ecu (behind center of dash) Instrument Illumination Wiring Diagram for Lexus LX 470 2003 List of elements for Instrument Illumination Wiring Diagram for Lexus LX 470 2003: 97 (at left kick panel) left kick panel j/b (at right kick panel) right kick panel j/b (behind left side of dash) auto wiper ecu (behind upper left side of dash) j/c 4 (behind upper right side of dash) j/c 16 (in dash harness, behind left side of dash) (in dash harness, behind left side of dash) i3 (near windshield) j/c 15 A/c amplifier (at right side of cargo area) A/c control assembly A/t shift lever illum A11 A13 A14 A33 Acc Ashtray illum B11 B13 B24 B49 B63 Bk (under front of right front seat) Body ecu (at left kick panel) C13 C14 C15 C17 C20 Center cluster integration panel Cigarette lighter illum Combination meter Combination switch D13 D15 D16 D35 Damping mode select switch & height control switch Driver's seat heater switch E35 Ec (at rear of right cylinder head) Electronically controlled transmission pattern select switch Engine room j/b (on left inner fender panel) Front pass- enger's seat heater switch Fusible link block (at left side of engine compt, near battery) Gauge 1 fuse 10a Glove box light Head Hot at all times Hot in on or start Ilen Ill- J/b 1 fuse 120a J/b 4 (behind upper center of dash) J/c 10 & 11 (j/c 11: behind upper left center of dash) J/c 12 (below instrument cluster) J/c 13 (near windshield) J/c 18 (behind right center of dash, near windshield) J/c 19 (behind right side of dash, near windshield) J/c 24 (at right rear wheelwell) J/c 3 (behind upper left side of dash) J/c 4 (behind upper left side of dash) J/c 7 (behind left side of dash, forward of instrument cluster) J10 J11 J12 J13 J15 J16 K20 L14 Left kick panel j/b (at left kick panel) Left power quarter window switch Light control switch (combination switch) M12 Multi- display Night view switch Off Overhead gill j/b (at front center gnd of roof) Panel fuse 7.5a Q43 Q55 Q58 Q65 Q68 Q83 Remote control mirror switch Rheostat Right kick panel j/b (at right kick panel) Right power quarter window switch Roll sensing of curtain shield air bags cutoff switch Sub body ecu (at left rear quarterpanel) Tail Tail relay Trly W/ navigation W/o navigation
MEMORY SYSTEMS Memory Systems Wiring Diagram (1 of 3) for Lexus LX 470 2003 List of elements for Memory Systems Wiring Diagram (1 of 3) for Lexus LX 470 2003: 75 (in body harness, in left front door) Acc Acc fuse 7.5a Bdr1 Becu Body ecu C14 C32 Center air bag sensor assembly (under front of center console) D12 D13 D34 D37 D38 D39 Dcty Defogger system Door fuse 25a Driving position memory switch E18 E23 Ecu-b2 fuse 10a Ecu-ig1 fuse 10a Ecu-ig2 fuse 10a Gauge 2 fuse 10a Gnd Gnd1 Gnd2 Hot at all times Hot in on or acc Hot in on or start Hsrl Hsrr I11 J/b 4 (behind upper center of dash) J/b 6 (behind right side of dash, near engine control module) J12 J13 K10 K14 K15 K23 Ksw Left front door courtesy switch Left kick panel j/b (at left kick panel) Left remote control mirror M+l M+r Mhl Mhr Mirb Mire Mpx1 Mpx2 Mvl Mvr P r Park/ neutral position switch (on right side of transmission) Q22 Q44 Q71 Rcan Red Remote control mirror ecu (behind left side of dash) Rev Right kick panel j/b (at right kick panel) Set Sig Swhr Swvr Til & tel fuse 20a Unlock warning switch Vdd Vsrl Vssr Memory Systems Wiring Diagram (2 of 3) for Lexus LX 470 2003 List of elements for Memory Systems Wiring Diagram (2 of 3) for Lexus LX 470 2003: 57 (at left kick panel) left kick panel j/b (at right kick panel) right kick panel j/b (behind right side of dash, near windshield) (in dash harness, behind left side of dash) (on steering A nca Column) Com1 Com2 Combination switch D40 D41 D42 Defogger system E41 Ecub F/b1 F/b2 Gnd J/c 1 (behind left side of dash, near steering column) J/c 19 J/c 3 (behind upper left side of dash) J14 Left kick panel j/b (at left kick panel) Mpx1 Mpx2 Msw Nca Nca a Operation Pnk Q31 Q32 Q33 Q37 Q59 Q60 Red Remote control mirror switch Right kick panel j/b (at right kick panel) Right remote control mirror S5v1 S5v2 Select switch Sg1 Sg2 Sin1 Sin2 Switch Tele long Tele short Telescopic motor (on steering column) Tilt & telescopic ecu (behind left side of dash) Tilt down Tilt motor Tilt up Vdd Memory Systems Wiring Diagram (3 of 3) for Lexus LX 470 2003 List of elements for Memory Systems Wiring Diagram (3 of 3) for Lexus LX 470 2003: 19 Driver's seat lumbar support control switch Hot at all times K33 Left kick panel j/b (at left kick panel) Left seat fuse 30a Nca Power seat control switch (driver's seat) Power seat ecu (below driver's seat) Power seat motor (driver's seat front vertical control) Power seat motor (driver's seat lumbar support control) Power seat motor (driver's seat rear vertical control) Power seat motor (driver's seat reclining control) Power seat motor (driver's seat slide control) Power seat position sensor (driver's rear vertical control) Power seat position sensor (driver's seat front vertical control) Power seat position sensor (driver's seat reclining control) Power seat position sensor (driver's seat slide control) Red S28
NAVIGATION Mayday Wiring Diagram for Lexus LX 470 2003 List of elements for Mayday Wiring Diagram for Lexus LX 470 2003: 60 (at right rear wheelwell) junction connector 24 (under front of right front seat) bk Acc Acc fuse 7.5a Antenna B13 B23 B23 (in body harness, below right front seat) B36 Back up battery Bus buffer computer C32 Center air bag sensor assembly (under front of center console) Console) D11 D13 D34 E37 Engine room j/b (on left inner fender panel) Gnd Hot at all times Hot in on or acc Hot in on or start Ignition switch lock Ind1 Ind2 Junction connector Junction connector 24 (at right rear wheelwell) L11 L14 Left kick panel j/b (at left kick panel) Left rear door speaker M10 M11 Mayday ecu Mayday ecu (under center Mic+ Mic- Mpx1 Multi- display Navigation ecu (under right front seat) Nca Overhead j/b (at front center of roof) Pnk Red Right kick panel j/b (at right kick panel) Rl+ Rl- S18 S19 Sgnd Snse Start Stereo component amplifier (under right front seat) Tacc Tel fuse 7.5a Tmut Transceiver Tx+ Tx- Navigation Wiring Diagram (1 of 2) for Lexus LX 470 2003 List of elements for Navigation Wiring Diagram (1 of 2) for Lexus LX 470 2003: 78 (at front center of roof) (w/o lexus link) overhead j/b (at right rear wheelwell) j/c 24 (behind center of dash) theft deterrent ecu (behind center of dash) transponder key computer (in body harness, in left front door) b2 (under center console) mayday ecu (under front of right front seat) Acan Acc Aui+ Aui- Auo+ Auo- B13 B23 B23 (below right front seat) pnk Bk (under front of right front seat) Body ecu (at left kick panel) D11 D12 D13 E19 E21 E27 E38 Ecu-b2 fuse 10a Fl+ Fl- Front seat) Gauge 2 fuse 10a Gnd Hot at all times Hot in on or start Ind J/b 4 (behind upper center of dash) J/c 18 (behind right center of dash) K16 K27 K32 K39 Left front door speaker Left kick panel j/b (at left kick panel) Left tweeter (7 speaker) M10 Macc Mic+ Mic- Mute N-mu Navigation ecu (under right Nca Park/neutral position switch (on right side of transmission) Parking brake switch (on base of park brake lever) Pnk Q22 Q29 Q43 Q44 Q71 Q76 Radio fuse 10a Red Rev Right kick panel j/b (at right kick panel) S18 S19 Sgnd Snse Spd Stereo component amplifier (under right front seat) Sync Tacc Tx+ Tx- W/ lexus link W/ lexus link system W/o lexus link W/o lexus link system Navigation Wiring Diagram (2 of 2) for Lexus LX 470 2003 List of elements for Navigation Wiring Diagram (2 of 2) for Lexus LX 470 2003: 75 (at right kick panel) right kick panel j/b (behind upper center of dash) j/b 4 +b1 A/c control assembly A10 A47 Acc Acc fuse 7.5a Batt Behind upper right side of dash) C12 C17 Combination meter D10 D11 D12 D16 D21 D33 Data link connector (dlc) 1 (on right inner fender panel) Data link connector (dlc) 3 (behind left side of dash, right of steering column) Dvd automatic changer E10 E24 Ec (at rear of right cylinder head) Ecu-b1 fuse 10a Ecu-ig1 fuse 10a Engine control module (behind right side of dash) Gateway ecu (behind center of dash) Gauge 1 fuse 10a Gnd Gnd1 Gtx+ Gtx- Hot at all times Hot in on or acc Hot in on or start J/b 4 (behind upper center of dash) J/b 7 (behind right side of dash) J/c 15 & 16 (j/c 15: behind left center of dash) (j/c 16: j16 J/c 18 (behind right center of dash) J15 J16 Junction connector 16 (behind upper right side of dash) Left kick panel j/b (at left kick panel) Mpd1 Mpd2 Mpx+ Mpx- Mpx1 Mpx2 Multi-display Nca Ntcs Ntsc Pkb Pnk Q18 Q57 Q65 Q66 R36 Radio & player Red Right kick panel j/b (at right kick panel) Sgd1 Sgnd Spd Speedometer Sync Tx+ Tx- Tx3+ Tx3- Vehicle spped sensor (combination meter) (on left side of transmission)
POWER ANTENNA Power Antenna Wiring Diagram for Lexus LX 470 2003 List of elements for Power Antenna Wiring Diagram for Lexus LX 470 2003: 46 A/c control assembly A47 A49 Acc Acc fuse 7.5a Ant Antd Antu Auto antenna control relay (behind glove box) Auto antenna motor (at right rear of engine compt) B10 Center cluster integration panel D15 D17 D22 D24 D29 Down E11 E18 Ecu-ig2 fuse 10a Gnd Hot at all times Hot in acc or on Hot in on or start J/b 4 (behind center of dash) J/b 4 (behind upper center of dash) J/c 14 (behind left center of dash, J/c 22 (behind upper right side of dash) Left kick panel j/b (at left kick panel) Nca Near windshield) R37 Radio & player Radio fuse 10a Red Right kick panel j/b (at right kick panel) S-antd S-antu Sdwn Sgnd Sig Sup Vcc W/ navigation W/o navigation
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 3) for Lexus LX 470 2003 List of elements for Power Distribution Wiring Diagram (1 of 3) for Lexus LX 470 2003: 99 A39 A49 A50 A58 A59 A60 A63 Abs 1 fuse 50a Abs 2 fuse 40a Abs mtr2 relay Abs sol relay Ahc fuse 50a Ahc relay Air conditioning system Alt fuse 140a Alt s fuse 7.5a Am2 fuse 15a Amp fuse 30a B11 B24 B36 B39 B47 B49 B50 B58 B60 B61 B62 B63 B65 B67 B69 B70 B72 Bat fuse 30a Battery Body ecu Ee (at left front of engine compartment) Efi or ecd 1 fuse 15a Efi or ecd relay Engine control, transmission, cruise control system Engine room j/b (on left inner fender panel) Engine room r/b Etcs fuse 10a Exterior lights system Exterior lights, antitheft system F16 F17 F18 F19 F20 Fr fog fuse 15a Fr fog relay Fr ig fuse 10a From b on this page From i on page 2 of 3 Fusible link block (at left side of engine compt, near battery) Haz trn fuse 15a Head clner fuse 20a Head hi relay Head relay Headlights system Horn fuse 10a Horn relay Htr fuse 50a Ig1 no.1 relay Instrument cluster navigation system Instrument cluster system Interior lights, instrument cluster system J/b 1 fuse 120a J/b 2 fuse 120a J/b 3 fuse 120a Left kick panel j/b Main fuse 120a Mir htr fuse 15a Mir htr relay Nca Not used Nv ir fuse 20a Panel fuse 7.5a Rr htr fuse 10a Rr htr relay Short pin Sound system Starter fuse 30a Starting/ charging system Tail fuse 15a Tail relay Tel fuse 7.5a To a on page 2 of 3 To b on this page To c on page 3 of 3 To d on page 3 of 3 To e on page 2 of 3 Towing brk fuse 30a Towing fuse 30a Towing tail fuse 30a Trly Power Distribution Wiring Diagram (2 of 3) for Lexus LX 470 2003 List of elements for Power Distribution Wiring Diagram (2 of 3) for Lexus LX 470 2003: 104 A/c fuse 15a A10 Acc Acc fuse 7.5a Acc relay Ahc b fuse 15a Ahc ig fuse 20a Air conditioning system Am1 Am1 fuse 7.5a Am2 Antilock brakes system B18 Batt charge fuse 30a Bdr1 Bm (at left rear quarter panel) Body computer system Body ecu Cig fuse Cigarette lighter D10 D11 D14 D16 D17 D19 D20 D21 D25 D31 Defog fuse 20a Defog relay Door fuse 25a E31 E32 E37 E39 E40 E41 Ecu b1 fuse 10a Ecu ig1 fuse 10a Electronic steering system Electronic suspension system Engine control, instrument cluster, interior lights, wiper/washer, transmission, cruise control, electronic suspension, power windows, warnings, navigation, body computer system Engine controls system Engine controls, exterior lights, wiper/washer, transmission, cruise control, antilock brakes, electronic suspension, bodu computer, shiftlock system Exterior lights system From a on page 1 of 3 From e on page 1 of 3 From f on this page Front power outlet Gauge 1 fuse 10a I11 Ig1 Ig1 no.2 relay Ig2 Ignition switch Instrument cluster, body computer, warnings, navigation, system J/c 14 (top right side of dash) J/c 15 & 16 (top right side of dash) K23 L10 L19 Left kick panel j/b (at left kick panel) Lh seat fuse 30a Lock Luggage compt power outlet Navigation instrument cluster system Navigation system Navigation, instrument cluster shiftlock. system Navigation, instrument cluster, sound system Not used Obd 2 fuse 7.5a Power mirror system Power seats system Power tops system Power tops, power mirrors system Pwr outlet fuse 15a Q16 Q17 Q21 Q44 Q57 Q64 Q65 Q77 Rear console box power outlet Right kick panel j/b (at right kick panel) Rr wiper fuse 15a Shiftlock, sound system Sig St2 Start Stop fuse 15a Sun roof fuse 25a To f on this page To g on page 3 of 3 To h on page 3 of 3 To i on page 1 of 3 To j on page 3 of 3 To k on page 3 of 3 Transmission, air conditioning system Warnings, air conditioning system Wiper/ washer, body computer system Power Distribution Wiring Diagram (3 of 3) for Lexus LX 470 2003 List of elements for Power Distribution Wiring Diagram (3 of 3) for Lexus LX 470 2003: 94 Acc cut relay Air conditioning system Anti theft, body computer system Anti theft, headlight, exterior lights, instrument cluster, wiper/washer, power window, power tops, door locks, power seats, power steering, power mirror, warnings, navigation, air conditioning, body computer system Antilock brakes system B11 B22 B25 D14 D24 D29 D31 D36 D37 D38 D39 Diff fuse 20a Dome fuse 10a Door locks, body computer system E16 E32 E33 Ecu b2 fuse 10a Ecu ig2 fuse 10a Electronic steering system Engine control system Engine control, anti lock brakes system Engine control, anti theft, transmission, cruise control system Engine control, instrument cluster, wiper/washer, transmission, cruise control, electronic suspension, warnings, navigation, body computer system Engine control, interior lights, exterior lights, instrument cluster, wiper/washer, transmission, cruise control, anti lock brakes, electronic suspension, door locks, anti theft power seats, power steering, power mirrors, navigation system Exterior lights system From c on page 1 of 3 From d on page 1 of 3 From g on page 2 of 3 From h on page 2 of 3 From j on page 2 of 3 From k on page 2 of 3 From l l on this page G11 Gauge 2 fuse 10a Headlight system I10 I11 Ign 1 no.3 relay Ign fuse 7.5a Interior lights, garage door opener, power window, power tops, anti theft, door locks, body computer system Interior lights, instrument cluster, body computer system J/b no.6 (behind right side of dash) J/c 8 (behind left center of dash) K11 K16 K19 K23 K24 K33 K35 K37 K39 K41 K42 Met fuse 7.5a Navigation system Not used P/w (fl) fuse 20a P/w (fr) fuse 20a P/w (rl) fuse 20a P/w (rr) fuse 20a Power seats system Power steering system Power window, anti theft, door locks, body computer system Power window, body computer system Q17 Q39 Q44 Q45 Q50 Q51 Q52 Q71 Q72 Radio fuse 10a Rh seat fuse 30a Right kick panel j/b (at right kick panel) Rr a/c fuse 30a Seat htr fuse 15a Security fuse 7.5a Sound system Til & tel fuse 20a To l on this page Transmission system Vgrs fuse 40a Washer fuse 15a Wiper fuse 25a Wiper/ washer system
POWER MIRRORS Power Mirrors Wiring Diagram for Lexus LX 470 2003 List of elements for Power Mirrors Wiring Diagram for Lexus LX 470 2003: 15 Ec+ Ec- Ecu-ig1 fuse 10a Hot in on or start Inner mirror L11 L17 L19 Left kick panel j/b (at left kick panel) Left remote control mirror Q15 Q16 Q81 Right kick panel j/b (at right kick panel) Right remote control mirror
POWER SEATS Heated Seats Wiring Diagram for Lexus LX 470 2003 List of elements for Heated Seats Wiring Diagram for Lexus LX 470 2003: 26 (behind upper left center of dash) B j12 B j13 B21 B26 Cushion heater D j13 Driver's seat Driver's seat heater switch E j10 E j12 Front passenger's seat heater switch Heater Hot in on or start Interior lights system J/c 10 & 11 J/c 12 & 13 (behind left side of dash, below instrument cluster) J11 d K31 K33 Left kick panel j/b (at left kick panel) Power seat ecu (below driver's seat) Right kick panel j/b (at right kick panel) Seat heater (front passenger's seat cushion) Seat heater (front passenger's seat) Seat htr fuse 15a Passenger Seat Wiring Diagram for Lexus LX 470 2003 List of elements for Passenger Seat Wiring Diagram for Lexus LX 470 2003: 16 B26 Bk (under front of right front seat) Down Front Front passenger's power seat control switch Hot at all times Power seat motor (front passenger's seat front vertical control) Power seat motor (front passenger's seat rear vertical control) Power seat motor (front passenger's seat reclining control) Power seat motor (front passenger's seat slide control) Rear Reclining Right kick panel j/b (at right kick panel) Right seat fuse 30a Slide Vertical
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram for Lexus LX 470 2003 List of elements for Power Top/Sunroof Wiring Diagram for Lexus LX 470 2003: 47 Bdr1 Becu Bj (under left front seat) Body ecu (at left kick panel) Bus Close Dcty Dome fuse 10a Door control receiver (at left "d" pillar) Door fuse 25a Down E15 Ecu-b2 fuse 10a Ecu-ig1 fuse 10a Gnd1 Gnd2 Hot at all times Hot in on or start K10 K26 L10 L11 L19 L20 Left front door courtesy switch Left kick panel j/b (at left kick panel) Moon roof control ecu (on roof, in front of moon roof) Moon roof control switch Mpx2 Mtr+ Mtr- Open Pcty Prg Psw1 Psw2 Q17 Q22 Q71 Q79 Rda Red Right front door courtesy switch Right kick panel j/b (at right kick panel) Sgnd Sig Sun roof fuse 25a
POWER WINDOWS Power Windows Wiring Diagram for Lexus LX 470 2003 List of elements for Power Windows Wiring Diagram for Lexus LX 470 2003: 81 (at left kick panel) left kick panel j/b (at right kick panel) right kick panel j/b (behind left kick panel) Acc Acc fuse 7.5a B2 (in body harness, in left front door) Bdr Bdr1 Becu Bj (under left front seat) Bk (under front of right front seat) Body ecu (at left kick panel) Cpub Dcty Dome fuse 10a Door control receiver (at left "d" pillar) Door fuse 25a E15 E18 E42 Ecu-b2 fuse 10a Ecu-ig1 fuse 10a Gnd Gnd1 Gnd2 Hot at all times Hot in acc or on Hot in on or start If (behind left side of dash) Ig (behind left side of dash) Ii (behind right side of dash) J10 Junction connector 8 (behind left side of dash, forward of instrument cluster) K10 K26 K30 Keye Ksw Kul Left door key lock & unlock switch unlock Left front door courtesy switch Left front door unlock detection switch Left front power window motor Left kick panel j/b (at left kick panel) Left kick panel j/b (at left kick panel) if Left rear power window control switch Left rear power window motor Lmt Lock Lswd Mpx1 Mpx4 Mpx5 Mpx6 P/w(fl) fuse 20a P/w(fr) fuse 20a P/w(rl) fuse 20a P/w(rr) fuse 20a Pct Pcti Pcty Pls Power window master switch Prg Q19 Q22 Q74 Q79 Rda Right front door courtesy switch Right front power window control switch Right front power window motor Right kick panel j/b (at right kick panel) Right rear power window control switch Right rear power window motor Sel1 Sel2 Sgnd Sig Unlock warning switch Wlsw Rear Quarter Windows Wiring Diagram for Lexus LX 470 2003 List of elements for Rear Quarter Windows Wiring Diagram for Lexus LX 470 2003: 27 (in dash harness, behind left side of dash) i4 Close Cls Gauge 1 fuse 10a Hot in on or start I3 (in dash harness, behind left side of dash) If (behind left kick panel) Junction connector (behind right center of dash, near windshield) Junction connector (behind right side of dash, near windshield) K36 K37 K40 Left kick panel j/b (at left kick panel) Left power quarter window switch Left power vent window motor Open Pnk Q43 Q47 Q48 Q59 Q60 Q65 Red Right kick panel j/b (at right kick panel) Right power e quarter window switch Right power vent window motor
RADIO Radio Wiring Diagram, with Navigation (1 of 2) for Lexus LX 470 2003 List of elements for Radio Wiring Diagram, with Navigation (1 of 2) for Lexus LX 470 2003: 68 (j/c 16: behind upper right side of dash) (j/c 15: behind left center of dash, near windshield) j/c 15 & 16 Acan Acc Acc fuse 7.5a Adim Ant Au1 Au2 Auto antenna control relay (behind glove box) Bl (under rear of right front seat) Body ecu (at left kick panel) Cdl+ Cdl- Cdr+ Cdr- Combination switch D10 D33 Dvd automatic changer E11 E21 E26 Eau Gnd Hot all all times Hot in acc or on J/b 4 (behind upper center of dash) J15 J16 Left kick panel j/b (at left kick panel) Lmut Multi-display Mute Nca Ntcs Ntsc Pnk Q18 R36 R37 R38 Radio & player Radio fuse 10a Rear seat audio controller Red Right kick panel j/b (at right kick panel) Rmut Rmute Rsa l+ Rsa l- Rsa r+ Rsa r- Rsl+ Rsl- Rsr+ Rsr- Sgd1 Sgnd Sld Stsm1 Stsm2 Swgnd Tx+ Tx- Txl+ Txl- Txm+ Txm- Radio Wiring Diagram, with Navigation (2 of 2) for Lexus LX 470 2003 List of elements for Radio Wiring Diagram, with Navigation (2 of 2) for Lexus LX 470 2003: 65 (under right front seat) stereo component amplifier +b2 7 speaker Acc Amp fuse 30a Aui+ Aui- Auo+ Auo- B7 (in body harness, in right front door) Bl (under rear of right front seat) C17 Combination meter Engine room j/b (on left inner fender panel) Fl+ Fl- Fr+ Fr- Gnd Hot at all times J/c 18 (behind right center of dash, near windshield) J/c 24 (at right rear wheelwell) K38 Left center speaker (w/ 9 speaker) Left front door speaker Left rear door speaker Left tweeter M10 Mayday ecu (under center console) Ml+ Ml- Mr+ Mr- Mute N-mu Navigation ecu (under right front seat) Nca Pnk Q43 Red Right center speaker (w/ 9 speaker) Right front door speaker Right kick panel j/b (at right kick panel) Right rear door speaker Right tweeter Rl+ Rl- Rr+ Rr- S18 S19 Sgnd Spd Tmut Tx+ Tx- W/ link system W/o link system Wf+ Wf- Wfl+ Wfl- Wfr+ Wfr- Woofer (speaker) Radio Wiring Diagram, without Navigation (1 of 2) for Lexus LX 470 2003 List of elements for Radio Wiring Diagram, without Navigation (1 of 2) for Lexus LX 470 2003: 49 (under rear of right front seat) bl Acc Acc fuse 7.5a Ant Au1 Au2 Auto antenna control relay (behind glove box) Bl (under rear of right front seat) Combination switch D33 E11 Eau Gnd Hot all all times Hot in acc or on J/b 4 (behind upper center of dash) J/c 15 & 16 (j/c 16: behind upper right side of dash) (j/c 15: behind left center of dash, near windshield) J15 J16 Left kick panel j/b (at left kick panel) Mute Nca Pnk Q18 R36 R37 R38 Radio & player Radio fuse 10a Rear seat audio controller Red Right kick panel j/b (at right kick panel) Rmut Rmute Rsa l+ Rsa l- Rsa r+ Rsa r- Rsl+ Rsl- Rsr+ Rsr- Sgnd Sld Stsm1 Stsm2 Swgnd Tx+ Tx- Radio Wiring Diagram, without Navigation (2 of 2) for Lexus LX 470 2003 List of elements for Radio Wiring Diagram, without Navigation (2 of 2) for Lexus LX 470 2003: 61 (under right front seat) stereo component amplifier +b2 7 speaker Acc Amp fuse 30a Asgd B2 (in body harness, in left front door) B7 (in body harness, in right front door) Bl (under rear of right front seat) C17 Combination meter Engine room j/b (on left inner fender panel) Fl+ Fl- Fr+ Fr- Gnd2 Hot at all times J/c 18 (behind right center of dash, near windshield) J/c 24 (at right rear wheelwell) K38 Left center speaker (w/ 9 speaker) Left front door speaker Left rear door speaker Left tweeter M10 Mayday ecu (under center console) Ml+ Ml- Mr+ Mr- Mute Nca Option connector (cellular mobile telephone) z2 Pnk Q43 Red Right center speaker (w/ 9 speaker) Right front door speaker Right kick panel j/b (at right kick panel) Right rear door speaker Right tweeter Rl+ Rl- Rr+ Rr- S18 S19 Spd Tmut Tx+ Tx- W/ link system W/o link system Wf+ Wf- Wfl+ Wfl- Wfr+ Wfr- Woofer (speaker)
SHIFT INTERLOCK Shift Interlock Wiring Diagram for Lexus LX 470 2003 List of elements for Shift Interlock Wiring Diagram for Lexus LX 470 2003: 28 Acc Acc fuse 7.5a D10 D15 D16 D17 D31 D35 E18 E26 Ecu-ig1 fuse 10a Hot at all times Hot in acc or on Hot in on or start J/b 4 (behind upper center of dash) Key interlock solenoid (on steering column, behind ignition key cylinder) Kls+ Left kick panel j/b (at left kick panel) P11 Right kick panel j/b (at right kick panel) Shift lock control ecu (below center dash) Shift lock control switch Shift lock solenoid Sls+ Sls- Stop fuse 15a Stoplight switch (on bracket, above brake pedal) Stp
STARTING/CHARGING Charging Wiring Diagram for Lexus LX 470 2003 List of elements for Charging Wiring Diagram for Lexus LX 470 2003: 29 39a Alt fuse 140a Alt-s fuse 7.5a B38 Battery Battery ground Body ecu (at left kick panel) C12 C14 combination meter C17 Charge indicator D35 E27 Ec (at rear of right cylinder head) Engine control module (behind right side of e6 dash) Engine room j/b (on left inner fender panel) F20 Fr-ig fuse 10a Fusible link block (at left side of engine compt, near battery) Generator Hot at all times Hot in on or start J/b 6 (behind right side of dash) Left kick panel j/b (at left kick panel) Met fuse 7.5a Nca Reg Right kick panel j/b (at right kick panel) Suspension control ecu (behind left center of dash) Starting Wiring Diagram for Lexus LX 470 2003 List of elements for Starting Wiring Diagram for Lexus LX 470 2003: 35 (behind left side of dash) A10 Acc Am2 fuse 15a B39 B43 Battery Battery ground D14 D15 E41 Ee (at left front of engine compt) Engine Engine control module (behind right side of dash) Engine room r/b (integral to engine room junction block) F16 Fusible link block (at left side of engine compartment, near battery) Ignition switch J/b 5 J/b 6 (behind right side of dash) Junction connector 17 (behind right center of dash) Left kick panel j/b (at left kick panel) Lock Main fuse 120a Nca Nsw Park/ neutral position switch (on right side of transmission) Room j/b (on left inner fender panel) Sta Star Start Starter Starter fusible link 30a Starter relay Stsw
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram (1 of 2) for Lexus LX 470 2003 List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Lexus LX 470 2003: 67 (at bottom of left "b" pillar) left pretensioner (on upper right side of radiator support crossbar) right front air bag sensor +sl +sr -sl -sr C31 C32 C33 Center air bag sensor assembly (under front of center console) Csl+ Csl- Csr+ Csr- D2+ D2- Escl Escr Esl Esr Gsw2 Hot in on or start Icl+ Icl- Icr+ Icr- Ig2 Ign fuse 7.5a Lbe+ Left curtain shield air bag squib Left front air bag sensor (on upper left side of radiator support crossbar) Left rear side air bag sensor (near top front of left rear wheelwell) Left side air bag squib Lsp+ Lsp- Met fuse 7.5a Mpx1 Mpx2 P2+ P2- Pl+ Pl- Pnk Pr+ Pr- Red Right curtain shield air bag squib Right front side air bag sensor (at base of right "b" pillar) Right kick panel j/b (at right kick panel) Right pretensioner (at bottom of right "b" pillar) Right rear side air bag sensor (near top front of right rear wheelwell) Right side air bag squib Rmil Rmsw Sfl+ Sfl- Sfr+ Sfr- Sil Ssl+ Ssl- Ssr+ Ssr- Vucl Vucr Vupl Vupr Supplemental Restraints Wiring Diagram (2 of 2) for Lexus LX 470 2003 List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Lexus LX 470 2003: 55 (at base of left "b" pillar) left front side air bag sensor (behind left side of dash, right of steering column) (front passenger air bag assembly) air bag squib (steering wheel pad) air bag squib Air bag (srs) B10 (in body harness, above left rear wheelwell) Bj (under left front seat) Body ecu (at left kick panel) C14 C15 C16 Combination meter Curtain shield air bags cutoff switch (roll sensing) D30 D34 D41 Data link connector 3 (partial) Dbkl E10 E11 E12 E14 E19 Engine control module (behind right side of dash) Esl F/ps F10 G10 J/b 4 (behind upper center of dash) J/b 7 (behind right side of dash) J/c 19 (behind right side of dash, near windshield) J/c 21 (behind upper right side of dash) J/c 23 (at left rear wheelwell) J/c 4 (behind upper left side of dash) K18 Left buckle switch Left buckle switch & seat position sensor (in left front seat belt buckle) Left kick panel j/b (at left kick panel) M11 May day ecu (under center console) Mpx1 Mpx2 Q11 Q37 Q43 Q69 Red Right kick panel j/b (at right kick panel) Rsca off Seat position sensor Solid state Ssl+ Ssl- Tilt & telescopic ecu (behind left side of dash) Vupl
TRANSMISSION A/T Wiring Diagram (2 of 2) for Lexus LX 470 2003 List of elements for A/T Wiring Diagram (2 of 2) for Lexus LX 470 2003: 33 (engine harn, on top of trans- mission) (engine harn, rear of engine) (left side of trans- mission) turbine speed sensor (left side of trans- mission) vehicle speed sensor (rear of right cylinder head) ec E01 E02 E03 Electronically controlled transmission solenoid (on transaxle) Engine control module (ecm) (behind right side of dash) Engine coolant temperature sensor (on top front of engine) Ge01 Me01 Nca Nt+ Nt- Red Sl1+ Sl1- Sl2+ Sl2- Slt+ Slt- Slu+ Slu- Sp2+ Sp2- Tho1 Tho2 Throttle control motor & sensor (top left front of engine) Thw Vta1 Vta2 Center Differential Lock Wiring Diagram for Lexus LX 470 2003 List of elements for Center Differential Lock Wiring Diagram for Lexus LX 470 2003: 69 (rear of right cylinder head) ec 2wd 4wd A/c control assembly A/t p A10 Abs & ba & trac & vsc actuator (left rear of engine compt) B20 Body ecu (at left kick panel) C12 C14 C15 C17 Center cluster integration panel Center diff lock Center differential lock control motor (on center differential) Center differential lock control relay (behind right side of dash) Center differential lock detection switch (on center of diff- erential) Combination meter D12 D13 D17 D19 D31 D32 D38 D39 Defc Diff fuse 20a E10 E24 Ec (rear of right cylinder head) Ecu-b2 fuse 10a Engine control module (behind right side of dash) Exi Exi2 Gateway ecu Gauge 1 fuse 10a Gauge 2 fuse 10a Gnd Hot at all times Hot in on or start J/b 4 (behind upper center of dash) J/b 6 (behind right side of dash) J/c 18 (behind right center of dash) Left kick panel j/b (at left kick panel) Met fuse 7.5a Mpd1 Mpd2 Mpx+ Mpx- Mpx1 Park/ neutral position switch (right side of trans- mission) Q28 Q44 Q54 Q56 Q65 Q66 Rel1 Rel2 Right kick panel j/b Right kick panel j/b (at right kick panel) Suspension control ecu Tfn Transfer "l" position detection switch (right side of trans- mission) Transfer neutral position detection switch (right side of trans- mission) W/ lexus navigation system W/o lexus navigation system
WARNING SYSTEMS Warning Systems Wiring Diagram for Lexus LX 470 2003 List of elements for Warning Systems Wiring Diagram for Lexus LX 470 2003: 71 A/c control assembly A/c fuse 15a A45 A47 Acc Acc fuse 7.5a B13 Bdr1 Becu Bj (under left front seat) Bk (under front of right front seat) Body ecu (at left kick panel) Buzzer C12 C13 C14 C17 Center air bag sensor assembly (under front of center console) Center cluster integration panel (w/ navigation) Combination meter D25 D26 Dbkl Dcty Dome fuse 10a Door fuse 25a Door indicator Drlp E18 E19 Ec (at rear of right cylinder head) Ecu-b2 fuse 10a Ecu-ig1 fuse 10a G10 Gauge1 fuse 10a Gnd1 Gnd2 Hot at all times Hot in acc or on Hot in on or start I-sbw If (behind left kick panel) Ig (behind left side of dash) J/c 18 (behind right center of dash, near windshield) K10 K18 K21 Ksw Lbe+ Left buckle switch (in left front seat belt buckle) Left front door courtesy switch Left kick panel j/b (at left kick panel) Met fuse 7.5a N11 N21 Q22 Q41 Q44 Q45 Q57 Q65 Q71 Right buckle switch (in right front seat belt buckle) Right kick panel j/b (at right kick panel) S/bw Seat belt indicator Seat belt warning occupant detection sensor (under right front seat) Sig Unlock warning switch W/ navigation W/o navigation
WIPER/WASHER Front Wiper/Washer Wiring Diagram (1 of 2) for Lexus LX 470 2003 List of elements for Front Wiper/Washer Wiring Diagram (1 of 2) for Lexus LX 470 2003: 51 (at left side of engine compt) ee (at right kick panel) right kick panel j/b (on left inner fender panel) engine room j/b A10 A13 A15 A45 A56 Auto B17 B34 B39 B68 C14 C21 Combination meter Combination switch D38 E35 Eb (at right side of engine compt) Ecu-b2 fuse 10a Ecu-ig2 fuse 10a Engine room j/b (on left inner fender panel) Front wiper motor (on right side of firewall) G11 G12 Gauge 2 fuse 10a High Hot at all times Hot in on or start I6 (behind left side of dash) Ii (behind right side of dash) Junction connector 5 (behind upper left side of dash) Junction connector 6 (behind upper left side of dash) Junction connector 7 (at left kick panel) K41 Left kick panel j/b (at left kick panel) Low Met fuse 7.5a Off Q33 Q44 Q71 Right kick panel j/b (at right kick panel) Washer fuse 15a Washer ind Washer level warning switch (washer motor) (at left front of engine compt, below headlight) Washer motor (on washer fluid reservoir) Washer switch Wiper fuse 25a Wiper switch Front Wiper/Washer Wiring Diagram (2 of 2) for Lexus LX 470 2003 List of elements for Front Wiper/Washer Wiring Diagram (2 of 2) for Lexus LX 470 2003: 60 (at left (on right side of transmission) park/neutral position switch A50 A51 Auto wiper ecu (behind left side of dash) Becu Body ecu C11 Center of dash, near windshield) Combination Connector 18 (behind right D12 D13 D17 D18 D31 D35 D36 D37 E26 Ec (at rear of right cylinder Ecu-ig1 fuse 10a Evr Gauge 1 fuse 10a Gnd Gnd1 Gnd2 Hot at all times Hot in on or start J/b 6 (behind right side of dash, near engine control module) Junction Kick panel) Left kick panel j/b Left kick panel j/b (at left kick panel) M14 Meter Mpx Mpx1 Mpx2 Q22 Q65 Q70 Rain sensor (on roof, in front of moon roof) Right kick panel j/b (at right kick panel) S/m S/s Sht Sig Spd Stop fuse 15a Stop light switch (on bracket, above brake pedal) Stp Stp1 Vehicle speed sensor (combination meter) (on left side of transmission) Wash Wig Wsau Wse Wshi Wslo Headlamp Washer Wiring Diagram for Lexus LX 470 2003 List of elements for Headlamp Washer Wiring Diagram for Lexus LX 470 2003: 35 (at left kick panel) left kick panel j/b A42 A43 A53 A55 A63 Auto B39 B53 Body ecu (at left kick panel) C18 Combination switch E35 Ea (at right front of engine compt) Ee (at left side of engine compt) Engine room j/b (on left inner fender panel) Head Head clner fuse 20a Headlight cleaner control relay (at left front of engine compt, behind headlight) Headlight cleaner motor (at left front of engine compt, below headlight) Headlight cleaner switch Hot at all times Hot in on or start Hrly Ii (behind right side of dash) Junction connector 3 (behind upper left side of dash) Junction connector 7 (behind left side of dash, forward of instrument cluster) Left kick panel j/b (at left kick panel) Light control switch Mtr Off Q46 Right kick panel j/b (at right kick panel) Tail Washer fuse 15a Rear Wiper/Washer Wiring Diagram for Lexus LX 470 2003 List of elements for Rear Wiper/Washer Wiring Diagram for Lexus LX 470 2003: 66 A14 A48 B10 B14 B54 Becu Bj (under left front seat) Body ecu (at left kick panel) C17 Combination meter Combination switch D39 E35 E38 Ec (at rear of right cylinder head) Ecu-b2 fuse 10a Ecu-ig1 fuse 10a Engine room j/b (on left inner fender panel) Gauge 1 fuse 10a Gauge 2 fuse 10a Gnd Gnd1 Gnd2 Hot at all times Hot in on or start Ig (behind left side of dash) Ii (behind right side of dash) Int Junction connector 18 (behind right center of dash, near windshield) Junction connector 7 (behind left side of dash, forward of instrument cluster) K14 K34 K39 Left kick panel j/b Left kick panel j/b (at left kick panel) Mpx+ Mpx2 Off Park/ neutral position switch (on right side of transmission) Pnk Q22 Q44 Q65 Q70 Q71 Rear wiper motor (on center of rear door) Rear wiper/ washer switch Rev Right kick panel j/b Right kick panel j/b (at right kick panel) Rr wiper fuse 15a Rwlm Rwsm S26 S27 Sig Spd Sub body ecu (at left rear quarterpanel) Vehicle speed sensor (combination meter) (on left side of transmission) Washer 1 Washer 2 Washer fuse 15a Washer motor (on washer fluid reservoir) Wrin Wrlo Wrsw
