Diagram sections — 32 (71 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ELECTRONIC SUSPENSION ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS NAVIGATION PASSIVE RESTRAINTS POWER DISTRIBUTION POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING Automatic A/C Wiring Diagram (1 of 2) for Lexus ES 300 2003 List of elements for Automatic A/C Wiring Diagram (1 of 2) for Lexus ES 300 2003: 68 (at dash reinforcement, right side) ie (behind right side of dash) blower motor controller (in dash harness, near right side footwell light) A/c ambient temperature sensor (below left center of front bumper) A/c control assembly (behind center of dash) A/c room temperature sensor (behind center of dash) A/c solar sensor (on top left side of dash) A/c thermistor (behind right side of dash) A/ci A/cs A14 A15 Ac1 Aif Air Air inlet control servo motor (behind right side of dash) Air mix control servo motor (driver) (behind lower left center of dash) Air mix control servo motor (passenger) (behind right center of dash) Air vent mode control servo motor (behind center of dash) Amdc Amdh Ampc Amph Aod Aof Blower motor (behind (right side of dash) Blw Cds fuse 30a Def E4 (near left front turn signal light) Ed (at left fender) Engine room j/b (on left side of engine compt) Face Fan 1 relay Gnd Hot at all times Htr fuse 50a Mfrs Mrec Pnk Psw Radiator fan motor Rdi fuse 30a S5-1 S5-2 S5-3 S5-4 Sg-1 Sg-2 Sg-3 Sg-4 Sg-5 Sg-6 Spd T11 Tam Telephone computer (on left side of luggage compt) Teli Tpd Tpi Tpo Tpp Tsd Tsl Tsp Tsr Water temperature switch 1 (on right front of engine compt) Water temperature switch 2 (on rear of engine) Automatic A/C Wiring Diagram (2 of 2) for Lexus ES 300 2003 List of elements for Automatic A/C Wiring Diagram (2 of 2) for Lexus ES 300 2003: 60 (at dash brace, right side) (at left left fender) (behind lower right side of dash) A/c condenser fan motor (on right front of engine compartment) A/c diode (in front of left front strut tower) A/c lock sensor & a/c magnetic clutch (on left front side of engine) a13 A/ci A/cs A13 A22 A24 A26 A29 A55 A56 A57 A59 A82 A87 Acmg B105 B106 B109 B118 B125 B126 B129 B54 B64 B74 B84 B86 B98 Combination meter Driver side j/b (behind left side of dash) Eb (at right fender) Ecu-b fuse 10a Ef (at intake side of cylinder block) Engine control module (behind right side of dash) Engine room r/b (on left side of engine compt) Fan 2 relay Fan 3 relay Fan rly fuse 10a G24 Gauge 1 fuse 10a Hot at all times Hot in on or start Htr fuse 10a Htr relay Ia (at dash reinforcement, left side) Junction connector Lcki Mg clt relay Passenger side j/b (behind right side of dash) Pressure switch (at right front corner of engine compt) Red Thr Thwo W/ vsc W/o vsc
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram, with VSC (1 of 2) for Lexus ES 300 2003 List of elements for Anti-lock Brakes Wiring Diagram, with VSC (1 of 2) for Lexus ES 300 2003: 59 (mounted on left front wheel hub assembly) left front abs speed sensor +bi Abs & ba & trac & vsc actuator (on left side of engine compt) Abs 2 fuse 40a Abs 3 fuse 40a Abs 4 fuse 7.5a Abs mtr relay Abs r/b (on left front corner of engine compt) Abs sol relay Ast Brake fluid level warning switch (on brake fluid level reservoir) Driver side j/b (behind left side of dash) Ea (at right fender) Eb (at right fender) Ecu-b fuse 10a Ed (at left fender) Engine room j/b (on left side of engine compt) Fl+ Fl- Fr+ Fr- Fss Gnd1 Gnd2 Gnd3 Gnd4 Gss Hot at all times Hot in on or start Junction connector 3 (behind left side of dash) Lbl- Mrf Nca Pmc Pmc2 Pressure sensor 1 Pressure sensor 2 Red Relay Right front abs speed sensor (mounted on right front wheel hub assembly) Sflh Sflr Sfrh Sfrr Skid control ecu (behind right side of dash) Sm1+ Sm1- Sm2+ Sm2- Src1 Src2 Srlh Srlr Srm1 Srm2 Srrh Srrr Vcm Vcm2 Anti-lock Brakes Wiring Diagram, with VSC (2 of 2) for Lexus ES 300 2003 List of elements for Anti-lock Brakes Wiring Diagram, with VSC (2 of 2) for Lexus ES 300 2003: 92 (behind left center of dash) junction connector 4 (behind right side of dash) passenger side j/b (on steering column) steering sensor +bo A/t indicator l A110 A51 A57 A61 A87 Abs ind B27 B28 B29 B30 a100 B68 B70 B85 B86 B96 b75 Bat Brake Combi- nation meter Computer data lines system Connector 6 (behind upper right side of dash) Csw D/g Driver side j/b (behind left side of dash) Ecu-ig fuse 10a Electronic suspension system Eng+ Eng- Engine control module (behind right side of dash) Engine room j/b (on left side of engine compt) Ess Fro G11 Gauge 1 fuse 10a Gauge2 fuse 10a Gl1 Gl2 Gyaw Hard Headlights system Hot at all times Hot in on or start Ia (at dash reinfor- cement, left side) Ib (at dash brace, left side) Ig1 Ig2 fuse 10a Ind Junction Junction connector 1 (behind upper left side of dash) Lblo Left rear abs speed sensor (mounted on left rear wheel hub assembly) Light switch (on tran- saxle) Micro computer Nca Neo Parking brake switch (behind left side of dash) Passenger side j/b (behind right side of dash) Pkb Pnk Power Red Right rear abs speed sensor (mounted on right rear wheel hub assembly) Rl+ Rl- Rr+ Rr- Skid control ecu (behind right side of dash) Slip ind Sp1 Ss- Ss1+ Ss1- Stop fuse 15a Stoplight switch (behind left side of dash) Stp Trac off ind Trac off switch Trc+ Trc- Trig Vsc ind Vsc warning buzzer (behind center of dash) Vscw Vys Yaw Yaw rate sensor (below rear of center floor console) Yaw2 Yss Anti-lock Brakes Wiring Diagram, without VSC for Lexus ES 300 2003 List of elements for Anti-lock Brakes Wiring Diagram, without VSC for Lexus ES 300 2003: 68 (at right fender) ea (at right side of +bm +bs A/t indicator light switch (on transaxle) A110 A57 A87 A90 Abs 2 fuse 40a Abs 3 fuse 40a Abs ind B55 B65 B66 B89 B99 Brake Brl Combination meter Computer data lines system D/g Driver side j/b (behind left side of dash) Eb (at right fender) Ecu-ig fuse 10a Engine compt) Engine room j/b (on left side of eng compt) Fl+ Fl- Fr+ Fr- Fro G11 G13 G19 G21 G23 Gauge1 fuse 10a Gauge2 fuse 10a Gnd1 Gnd2 Headlights system Hot at all times Hot in on or start Ig1 Ind Left front abs speed sensor (mounted on left front wheel hub assembly) Left rear abs speed sensor (mounted on left rear wheel hub assembly) Micro computer P/n Parking brake switch (behind left side of dash) Passenger side j/b (behind right b76 side of dash) Passenger side j/b (behind right side of dash) Pkb Pnk Power Red Right front abs speed sensor (mounted on right front wheel hub assembly) Right rear abs speed sensor (mounted on right rear wheel hub assembly) Rl+ Rl- Rr+ Rr- Skid control ecu with actuator Sp1 Stop fuse 15a Stoplight switch (behind left side of dash) Stp
ANTI-THEFT Power Door Locks Wiring Diagram (2 of 2) for Lexus ES 300 2003 List of elements for Power Door Locks Wiring Diagram (2 of 2) for Lexus ES 300 2003: 87 (15-23 not used) (7-9 not used) (at left fender) ed (behind center of dash) a/c control assembly (behind left side of dash) driver side j/b (behind right side of dash) engine control module (behind right side of dash) passenger side j/b (in dash harness, near accelerator position sensor) i2 (near hood latch) engine hood courtesy switch (w/ vsc) (w/o vsc) b24 b44 +b1 A14 Ant1 Ant2 B13 b33 B14 b34 Ba (under driver's seat) Batt Bdr Code Cpub Door 1 fuse 25a Driver door ecu (in middle of left front door) Driver side j/b (behind left side of dash) Dswh E01 E02 E03 E04 E05 E10 Ee (at rear of cylinder head) Ef (at intake side of cylinder block) Efi fuse 20a Efi relay Engine room j/b (on left side of engine compt) Eom Front passenger door ecu (in middle of right front door) G17 G20 Gnd H11 Head relay Headlights system Horn fuse 10a Horn relay Horns system Hot at all times Hot in on or start Ia (at dash reinforcement, left side) Ib (at dash brace) If (at dash reinforcement, right side) Ig2 fuse 10a Igsw Imld Ind Junction connector (behind lower right side of dash) Junction connector 1 (behind upper left side of dash) Junction connector 4 (behind left center of dash) Junction connector 6 (behind upper right side Junction connector 8 & 9 (behind upper right side of dash) Keye Ksw Kul Left front door key lock & unlock switch, door lock motor & door lock detection switch Left rear door lock motor & door unlock detection switch Lswd Lswp Main fuse 40a Me01 Mpx1 Mpx2 Mrel Of dash) Red Right front door lock motor & door unlock detection switch Right rear door lock motor & door unlock detection switch Rxck Sh- Sig Theft deterrent ecu (behind right side of dash) Theft deterrent horn (on left rear of engine compt) Transponder key amplifier (on right side of steering column) Transponder key coil Txct Unlock warning switch
BODY CONTROL MODULES Body Control Modules Wiring Diagram for Lexus ES 300 2003 List of elements for Body Control Modules Wiring Diagram for Lexus ES 300 2003: 80 Acc Act+ Act- Actd Altl Anti-lock brakes system Anti-theft system Auto B11 B12 Bdr1 Bdr2 Body ecu (attached to driver side j/b) Bzr Cltb Clte Clts Computer data lines system Cyl Dcty Door 1 fuse 25a Door 2 fuse 25a Door locks system Driver side j/b (behind left side of dash) Drl Drlp Ecu-acc fuse 5a Ecu-b fuse 10a Ecu-ig fuse 10a Engine room j/b (on left side of engine compt) Exterior lights system Fspt G11 G14 G22 Gnd Gsw Haz Head Headlights system Horn Horns system Hot at all times Hot in on or acc Hot in on or start Hrly Ia (at dash reinforcement, left side) Id (at dash brace, right side) Instrument cluster system Interior lights system Ksw Lgcy Lsr Mpx1 Mpx2 Mpx3 Mpx4 Mpx5 Obd2 Pcty Pkb Pnk Power tops system Prg Pws Rda Red Rlcy Rrcy Sdrl Sgnd Sig Spd Starting/charging system Tail Tkul Tr+ Transmissions system Trly Trunk, tailgate, fuel doors system
COMPUTER DATA LINES Computer Data Lines Wiring Diagram for Lexus ES 300 2003 List of elements for Computer Data Lines Wiring Diagram for Lexus ES 300 2003: 69 7.5a A/c A22 A31 Absorber control ecu (behind left end of dash) Air bag sensor assembly (under front of center floor console) B109 B11 B118 B12 B129 B21 B22 B32 B41 B42 B50 B51 B52 B58 B60 B62 B70 B71 B72 B78 B80 B91 B98 Bat Body ecu (attached to driver side j/b) D/g Data link connector 3 (at lower left side of dash) Driver door ecu (in middle of left front door) Driver side j/b (behind left side of dash) Ef (at intake side of cylinder block) Engine control module (behind right side of dash) Eom Front passenger door ecu (in middle of right front door) G18 Headlight beam level control ecu (behind lower center of dash) Hot at all times Ia (at dash reinforcement, left side) Junction connector 11 (behind lower right side of dash) Junction connector 3 (behind left side of dash) Left rear door ecu (in middle of left rear door) Mpx1 Mpx2 Mpx3 Mpx4 Mpx5 Obd fuse Obd2 Passenger side j/b (behind right side of dash) Pnk Prst Red Right rear door ecu (in middle of right rear door) Sil Skid control ecu (behind right side of dash) Skid control ecu w/ actuator (w/ vsc: at right side of engine compt) Tem Theft deterrent ecu (behind right side of dash) Vsc W/ W/ vsc W/o W/o vsc Wfse
COOLING FAN Cooling Fan Wiring Diagram for Lexus ES 300 2003 List of elements for Cooling Fan Wiring Diagram for Lexus ES 300 2003: 29 (in dash harness, near grommet on right side of firewall) i6 A/c condenser fan motor (on right front of engine compt) A/c diode (in front of left front strut tower) Acmg Air conditioning system Cds fuse 30a Driver side j/b (behind left side of dash) E10 Eb (at right fender) Ec (at left fender) Ed (at left fender) Engine control module (behind right side of dash) Engine controls system Engine coolant temperature sensor (on top front of engine) Engine room j/b (on left side of engine compt) Engine room r/b (on left side of engine compt) Fan 1 relay Fan 2 relay Fan 3 relay Fan rly fuse 10a Hot at all times Hot in on or start Pressure switch (at right front corner of engine compt) Radiator fan motor Rdi fuse 30a Red Thw Water temperature switch 1 (on right front of engine compt) Water temperature switch 2 (on rear of engine)
CRUISE CONTROL
DEFOGGERS Defoggers Wiring Diagram for Lexus ES 300 2003 List of elements for Defoggers Wiring Diagram for Lexus ES 300 2003: 26 A/c control assembly (behind center of dash) A15 A24 A55 Ba (under driver's seat) Choke coil (at left "c" pillar) Def fuse 40a Def relay Driver side j/b (behind left side of dash) Gauge 2 fuse 10a Gnd Heater Hot at all times Hot in on or start Ia (at dash reinforcement, left side) If (at dash reinforcement, right side) K18 Left remote control mirror Mir htr fuse 10a Noise filter Passenger side j/b (behind right side of dash) Rdef Rear window defogger Right remote control mirror W/ driving position memory W/o driving position memory
ELECTRONIC SUSPENSION Electronic Suspension Wiring Diagram for Lexus ES 300 2003 List of elements for Electronic Suspension Wiring Diagram for Lexus ES 300 2003: 82 (in dash harness, near accelerator position sensor) i2 (on left front strut tower) (on steering column) steering sensor A21 A22 Absorber control ecu (behind left end of dash) Absorber control switch B11 B12 B20 B70 B71 B72 B89 B99 Combination meter Data link connector 3 (at lower left side of dash) Driver side j/b (behind left side of dash) Eb (at right fender) Ed (at left fender) Engine controls system Ess Fal+ Fal- Fan rly fuse 10a Far+ Far- Fbl+ Fbl- Fbr+ Fbr- Fro Ggnd Gl1 Gnd Hard Headlights system Hot at all times Hot in on or start Ia (at dash reinforcement, left side) Interior lights system J/c 1 (behind upper left side of dash) J/c 12 (forward of left rear fenderwell) J/c 13 (near right front of luggage compt) J/c 3 (behind left side of dash) J/c 4 (behind left center of dash) Left front absorber control actuator Left front acceleration control sensor (behind upper right side of dash) Left rear absorber control actuator (on top of left rear shock absorber) Mod2 Passenger side j/b (behind right side of dash) Pnk Ral+ Ral- Rar Rar- Rbl+ Rbl- Rbr+ Rbr- Red Right front absorber control actuator (on right front strut tower) Right rear absorber control actuator (on top of right rear shock absorber) Right rear acceleration control sensor (at base of right "c" pillar) Sbl Sbr Sgfl Sgl Sgr Sgrr Sil Skid control ecu (behind right side of dash) Ss2+ Ss2- Stop fuse 15a Stoplight switch (behind left side of dash) Stp Sw1 Sw2 Tach Tem Vgs
ENGINE PERFORMANCE
3.0L 3.0L, Engine Performance Wiring Diagram (2 of 6) for Lexus ES 300 2003 List of elements for 3.0L, Engine Performance Wiring Diagram (2 of 6) for Lexus ES 300 2003: 43 (behind left side of dash) stoplight switch (in fuel tank) fuel pump & fuel sender (left dash reinforcement) A/f htr relay Accelerator pedal position sensor (behind left center of dash) Code Data link connector 3 (at lower left side of dash) Driver side j/b (behind left side of dash) Eng+ Eng- Engine room r/b (on left side of engine compt) G13 G16 Gauge1 fuse 10a Gauge2 fuse 10a Gnd Hot at all times Hot in on or start Hot w/ def relay energized Hot w/ tail relay energized J/c 12 (forward of left rear fenderwell) J/c 4 (behind left center of dash) J/c 6 (behind upper right side of dash) Left vvt solenoid (on left rear of engine) Mir htr fuse 10a Neo Pnk Ptnk Red Right vvt solenoid (on right rear of engine) Rxck Sil Skid control ecu (behind right side of dash) Stop fuse 15a Tail fuse 10a Transponder key amplifier (on right side of steering column) Trc+ Trc- Txct Unlock warning switch Vapor pressure sensor (under rear of vehicle) Vcc Wfse 3.0L, Engine Performance Wiring Diagram (3 of 6) for Lexus ES 300 2003 List of elements for 3.0L, Engine Performance Wiring Diagram (3 of 6) for Lexus ES 300 2003: 43 (behind left side of dash) driver side j/b (behind right side of dash) passenger side j/b (dash harn, near stereo component amplifier) (on transaxle) a/t indicator light switch (integral to park/neutral position switch) A55 A57 A85 A87 Braided Ccv Cooling fans system E03 Ee (left side of cylinder head) Ef (intake side of cylinder block) Engine control module (ecm) (behind right side of dash) Evp1 Ge01 Ht1b Ht2b Ia (left dash reinforcement) Left vvt sensor (on left rear of engine) Me01 Mt2 Mt4 Mtd Mtl Nssd Nssl Oc1+ Oc1- Oc2+ Oc2- Power steering oil pressure switch (near front of engine) Red Throttle control motor (on throttle body) Transmission control switch Vsv (canister closed valve) (at left rear of engine compt) Vsv (evap) (on top of engine) Vv1+ Vv2+ Vv2- Vvl+ Vvl- 3.0L, Engine Performance Wiring Diagram (4 of 6) for Lexus ES 300 2003 List of elements for 3.0L, Engine Performance Wiring Diagram (4 of 6) for Lexus ES 300 2003: 23 Combination meter Counter gear speed sensor (near rear of engine) E2 (engine harn, near fuel inj 2) Ef (intake side of cylinder block) Gnd Igf Ignition coil & igniter 1 Ignition coil & igniter 2 Ignition coil & igniter 3 Ignition coil & igniter 4 Ignition coil & igniter 5 Ignition coil & igniter 6 Igt Micro computer Mil ind Noise filter (ignition) (at top of engine) Pnk Power Red Right vvt sensor (on right rear of engine) Speedometer Tachometer Turbine speed sensor (near left rear of engine) 3.0L, Engine Performance Wiring Diagram (5 of 6) for Lexus ES 300 2003 List of elements for 3.0L, Engine Performance Wiring Diagram (5 of 6) for Lexus ES 300 2003: 29 (behind lower right side of dash) j/c 11 (dash harn, near grommet on right side of firewall) (dash harn, near j/c 10) (engine harn, near power steering oil pressure switch) Acc E2 (engine harn, near fuel inj 2) E2g Ef (intake side of cylinder block) Engine coolant temp sensor (on top front of engine) Engine room j/b (on left side of engine compt) Fuel injector Heated oxygen sensor (bank 1 sensor 2) (near left side of engine) Heated oxygen sensor (bank 2 sensor 2) (on left exhaust manifold) Hot at all times Hot in on or start I6 (dash harn, near grommet on right side of firewall) Ign fuse 15a Ignition switch L10 Lock Mass airflow meter (on left side of engine compt, part of air intake assembly) Pnk Red Start Tha Vsv (acis 1) (on top of engine) Vsv (acis 2) (on top of engine) Vsv (acm) (on left front of engine compt) Vsv (aicv) (on left rear of engine) 3.0L, Engine Performance Wiring Diagram (6 of 6) for Lexus ES 300 2003 List of elements for 3.0L, Engine Performance Wiring Diagram (6 of 6) for Lexus ES 300 2003: 78 (dash harn, near stereo component amplifier) (right side of dash) (right side of dash) i6 Aci1 Acis Acm1 Af+ Af- Afl+ Afl- Afr+ Afr- Aicv Air fuel ratio sensor (bank 1 sensor 1) (on right side of engine, in exhaust pipe) Air fuel ratio sensor (bank 2 sensor 1) (on left side of engine, in exhaust pipe) Crankshaft position sensor (on lower left front of engine) Dsl E01 E02 E04 E05 E1 ot E1 s4 E10 E2 slt+ E2g Ee (left side of cylinder head) Electronically controlled transmission solenoid (on transaxle) Engine control module (ecm) (behind right side of dash) Engine room j/b (on left side of engine compt) Hafl Hafr I6 (dash harn, near grommet on right side of firewall) Igf Igt1 Igt2 Igt3 Igt4 Igt5 Igt6 Inj 1 Inj 2 Inj 3 Inj 4 Inj 5 Inj 6 Knkl Knkr Knock sensor 1 (on top of engine) Knock sensor 2 (on top of engine) Nc+ Nc- Ne+ Ne- Nsw Nt+ Nt- Ox1b Ox2b P/n Park/ neutral position switch (on transaxle) Pnk Red Sl1+ Sl1- Sl2+ Sl2- Sl3+ Sl3- Slt+ Slt- Sta Tha Tho Throttle position sensor (on throttle body) Thw Vta1 Vta2
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Lexus ES 300 2003 List of elements for Back-up Lamps Wiring Diagram for Lexus ES 300 2003: 10 (in body harness, behind left rear combination light) b18 B18 Back- up Back-up light switch (on transaxle) Driver side j/b (behind left side of dash) Gauge 2 fuse 10a Hot in on or start Junction connector 12 (forward of left rear fenderwell) Left rear combination light Right rear combination light Exterior Lamps Wiring Diagram for Lexus ES 300 2003 List of elements for Exterior Lamps Wiring Diagram for Lexus ES 300 2003: 94 (at left fender) ec (at right fender) eb (behind left center of dash) j/c 4 (behind left kick panel) turn signal flasher relay (except (in dash harness, near accelerator position sensor) i2 (w/ vsc) b74 b54 (w/o vsc) A57 A58 A77 A87 A88 A97 Alt fuse 120a B13 (at top of left wheel- well) B15 B15 (at left side of trunk) B17 B17 (behind left rear combination light) B18 B18 (in body harness, behind left rear combination light) B20 B84 (w/ vsc) (w/o vsc) b64 Back- up Back-up lamps circuit Be (at lower center of back panel) Body ecu Combi- nation switch Combination meter Combination switch Driver side j/b (behind left side of dash) Ehw Engine room j/b (on left side of engine compt) Engine room r/b (on left side of engine compt) G13 G15 Gauge 1 fuse 10a Gnd Haz Haz fuse 15a Hazard switch Head High mounted stop light Hot at all times Hot in on or start Hot w/ tail relay energized Ia (at dash reinforce- ment, left side) Ib (at dash brace, left side) Id (at dash brace, right side) J/c 1 (behind upper left side of dash) J/c 12 (forward of left rear fenderwell) J/c 4 (behind left center of dash) J/c 6 & 7 (behind upper right side of dash) K15 K19 K20 Left front side marker light Left front turn signal light Left license plate light Left parking light Left rear combination light Left rear side marker light Left rear turn signal light Left turn ind Light ctrl sw Light failure sensor (near left "c" pillar) Micro computer Noise filter Off Panel fuse 10a Passenger side j/b (behind right side of dash) Power Rear lights ind Red Relay Right front side marker light Right front turn signal light Right license plate light Right parking light Right rear combination light Right rear side marker light Right rear turn signal light Right turn ind St+ St- Stop Stop fuse 15a Stop- light switch (behind left side of dash) Tail Tail fuse 10a Tail ind Trly Usa)
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 3) for Lexus ES 300 2003 List of elements for Ground Distribution Wiring Diagram (1 of 3) for Lexus ES 300 2003: 80 (*) (left side of engine compt) engine room j/b (left side of engine compt) engine room r/b (right side of dash) passenger side j/b (w/ abs) (w/ vsc) (w/ mem) (w/o mem) (w/ vsc) (w/ abs) (w/o m levinson) (w/ m levinson) (w/o m levison & navigation sys) A/f htr relay A12 b12 c7 A21 Abs & ba & trac & vsc actuator Absorber control ecu Adj pdl relay Airbag sensor assembly B11 B14 B23 B28 B4 (right front door) B54 b74 B84 b64 Blower motor controller Body ecu Brake fluid level warning switch Combination meter D20 Drl 3 relay Drl 4 relay Drl resistor E1 (right front of engine compt) E4 (left front of engine compt) Ea (right front fender) Eb (right front fender) Ec (left front fender) Ed (left front fender) Efi relay Engine hood courtesy switch Fan 2 relay Front passenger door ecu Front wiper motor Htr relay Ic (right dash brace) Id (right dash brace) Ie (right dash reinforcement) If (right dash reinforcement) Keyless buzzer Left front absorber control ecu Left front fog light Left front side marker light Left front turn signal light Left headlight (low) Left headlight control ecu Left parking light Passenger side j/b (right side of dash) Pressure switch Radiator fan motor Radio & player Radio & player w/ display Right front absorber control actuator Right front fog light Right front side marker light Right front turn signal light Right headlight (low) Right headlight control ecu Right mirror heater Right parking light Skid control ecu Skid control ecu w/ actuator St relay Stereo component amplifier W/ drl W/ hid W/ navi- gation system W/ vsc W/o hid W/o navi- gation system W/o vsc, w/ abs Washer level sensor Water temperature switch 1 Ground Distribution Wiring Diagram (2 of 3) for Lexus ES 300 2003 List of elements for Ground Distribution Wiring Diagram (2 of 3) for Lexus ES 300 2003: 83 (left rear door ecu (left side of driver's seat back) b22 (top center of engine) e2 (w/ abs) (w/ vsc) (w/ mem) (w/o mem) (w/ vsc) (w/ abs) A/c lock sensor A15 A17 B1 (driver's door) B11 (front of right rear quarter wheel house) B128 b108 B129 b109 B13 B18 B20 B20 (right rear of trunk) B24 (seat back of passenger's seat) B5 (under driver's seat) B7 (left rear door) B78 b58 B98 b118 B98 b78 Ba (under front passenger's seat) Bb (under front passenger's seat) Bc (front of left rear quarter wheel house) Bd (front of right rear quarter wheel house) Be (center rear of trunk) Combination switch Data link connector Door lock control receiver Driver door ecu Driving position memory switch Ee (left side of cylinder head) Ef (intake side of cylinder block) Engine control module Engine oil level sensor Fuel lid opener solenoid Fuel pump Heated oxygen sensor (bank 1 sensor 2) Heated oxygen sensor (bank 2 sensor 2) High mounted stop light I6 (right side of dash) Ignition coil & igniter 1 Ignition coil & igniter 2 Ignition coil & igniter 3 Ignition coil & igniter 4 Ignition coil & igniter 5 Ignition coil & igniter 6 J/c j11 (right side of dash) J/c j12 J/c j13 Left buckle switch Left license plate light Left mirror heater Left rear absorber control actuator Left rear combi- nation light Left rear door unlock detection switch Left rear side marker light Left rear turn signal light Left seat heater Light failure sensor Memory seat ecu Navi- gation ecu Of driver's seat) Passenger side j/b (right side of dash) Power seat control switch (driver's seat) Power seat control switch (front passenger) Power seat control switch (lumbar control) Rear of trunk lid) Rear sunshade control relay Right buckle switch Right license plate light Right rear absorber control actuator Right rear combi- nation light Right rear door ecu Right rear door unlock detection switch Right rear side marker light Right rear turn signal light Right seat heater Stereo component amplifier Telephone computer W/ mark levinson Ground Distribution Wiring Diagram (3 of 3) for Lexus ES 300 2003 List of elements for Ground Distribution Wiring Diagram (3 of 3) for Lexus ES 300 2003: 64 (center front of roof) (w/ abs) (w/ vsc) (w/ vsc) (w/ abs) A/c control assembly A115 A116 A24 A55 A65 A75 A85 Absorber control switch Acc relay Adjustable pedal switch Airbag sensor assembly B20 B21 B27 B30 B40 b20 B50 b70 B80 b60 B90 b70 Body ecu Cigarette lighter Clock Combination meter Combination switch Data link connector Driver side j/b (left side of dash) Glove box light & switch Hazard switch Headlight beam level control ecu Ia (left dash reinforcement) Ib (left dash brace) Ig1 relay Inner mirror & compass Interior light J/c j1 (left side of dash) J/c j4 Left vanity mirror Luggage compartment door opener switch Memory mirror ecu Moon roof control ecu & motor Noise filter 1 1 Noise filter 2 Overhead j/b Passenger side j/b (right side of dash) Power outlet Rain sensor Rear sunshade control switch Remote control mirror switch Right vanity mirror Shift lock control ecu Steering sensor Theft deterrent ecu Trac off switch Transponder key amplifier Turn signal flasher relay Unlock warning switch W/ moon roof W/o auto wiper W/o memory system Wiper relay
HEADLIGHTS Headlamps Wiring Diagram, with DRL (1 of 2) for Lexus ES 300 2003 List of elements for Headlamps Wiring Diagram, with DRL (1 of 2) for Lexus ES 300 2003: 74 (behind left side of dash) driver side j/b (on left side of engine compartment) engine room j/b (w/ vsc) b92 (w/o vsc) b72 A55 A85 Acc Altl Auto Automatic light control sensor (on top left side of dash) B11 B62 (w/o vsc) B82 (w/ vsc) Body ecu C10 Cltb Clte Clts Combination meter Combination switch Dcty Dimmer switch Driver side j/b (behind left side of dash) Drl Eb (at right fender) Ec (at left fender) Ecu-acc fuse 5a Ecu-b fuse 10a Ecu-ig fuse 10a F j8 Flash Fog fuse 15a Fog relay Foglight switch Front fog indicator G11 G12 Gnd H11 Head Head indicator (usa) Head relay High High beam indicator Hot at all times Hot in acc or on Hot in on or start Hrly I2 (in dash harness, near accelerator position sensor) Ia (at dash reinforcement, left side) Ib (at dash brace, junction connector 4 Id (at dash brace, right side) Junction connector 8 & 9 (behind upper right side of dash) Left front door courtesy switch Left front fog light Left side) Light control switch Low Main fuse 40a Off Parking brake switch (behind left side of dash) Passenger side j/b (behind right side of dash) Pkb Pnk Red Right front fog light Sdrl Sgnd Sig Starting/ charging system Tail Tail relay Trly Usa Headlamps Wiring Diagram, with DRL (2 of 2) for Lexus ES 300 2003 List of elements for Headlamps Wiring Diagram, with DRL (2 of 2) for Lexus ES 300 2003: 24 (on left side of engine compartment) engine room j/b (on left side of engine compartment) engine room r/b Daytime running light resistor (at left front of engine compt, near engine room r/b) Drl 2 relay Drl 3 relay Drl 4 relay Drl fuse 5a E4 (in engine harness, near left front turn signal light) Eb (at right fender) Ec (at left fender) Except hid type Head left lwr fuse 15a Head left upr fuse 10a Head right lwr fuse 15a Head right upr fuse 10a Hid type Left headlight (high) Left headlight (low) Left headlight control ecu (behind left headlight) Red Right headlight (high) Right headlight (low) Right headlight control ecu (behind right headlight) Usa Headlamps Wiring Diagram, without DRL (1 of 2) for Lexus ES 300 2003 List of elements for Headlamps Wiring Diagram, without DRL (1 of 2) for Lexus ES 300 2003: 45 A55 A85 Acc Auto Automatic light control sensor (on top left side of dash) B11 Body ecu Cltb Clte Clts Combination meter Combination switch Dcty Dimmer switch Driver side j/b (behind left side of dash) Ecu-acc fuse 5a Ecu-b fuse 10a Ecu-ig fuse 10a Flash Foglight switch Front fog indicator G10 Gnd Head High High beam indicator Hot at all times Hot in acc or on Hot in on or start Hrly Ia (at dash reinforcement, left side) Ib (at dash brace, junction connector 4 Id (at dash brace, right side) Left front door courtesy switch Left side) Light control switch Low Off Passenger side j/b (behind right side of dash) Red Sgnd Sig Tail Tail relay Trly Headlamps Wiring Diagram, without DRL (2 of 2) for Lexus ES 300 2003 List of elements for Headlamps Wiring Diagram, without DRL (2 of 2) for Lexus ES 300 2003: 28 (on left side of engine compartment) engine room j/b (on left side of engine compartment) engine room r/b B11 C10 Driver side j/b (behind left side of dash) Eb (at right fender) Ec (at left fender) Engine room j/b (on left side of engine compartment) Fog fuse 15a Fog relay G12 H11 Head left lwr fuse 15a Head left upr fuse 10a Head relay Head right lwr fuse 15a Head right upr fuse 10a Hot at all times I2 (in dash harness, near accelerator position sensor) Junction connector 8 & 9 (behind upper right side of dash) Left front fog light Left headlight (high) Left headlight control ecu (behind left headlight) Main fuse 40a Red Right front fog light Right headlight (high) Right headlight control ecu (behind right headlight) Headlamps Leveling Wiring Diagram for Lexus ES 300 2003 List of elements for Headlamps Leveling Wiring Diagram for Lexus ES 300 2003: 58 (in dash harness, near accelerator position sensor) A32 Absorber control ecu (behind left end of dash) (w/ electric modulated suspension system) Air bag sensor assembly (under front of center floor console) Bb (under front passenger's seat) Combination meter Computer data lines system Driver side j/b (behind left side of dash) Engine room j/b (on left side of engine compartment) Fro Gauge 2 fuse 10a Gnd H11 Hdlp Head relay Headlight beam level control ecu (behind lower center of dash) Headlight beam level indicator Height control sensor (beneath center rear of vehicle) Hot at all times Hot in on or start Ib (at dash brace, left side) Ig2 fuse 10a Junction connector 1 (behind upper left side of dash) Junction connector 10 (behind lower right side of dash) Junction connector 14 (near right front kick panel) Junction connector 2 (behind upper center of dash) Junction connector 4 Junction connector 5 (behind upper left side of dash) Left headlight beam level control actuator (behind left headlight) Lh1 Lh2 Lh3 Lh4 Main fuse 40a Occupant detection sensor Prst Rbe+ Rh1 Rh2 Rh3 Rh4 Right buckle switch (on right front seat belt buckle) Right headlight beam level control actuator (behind right headlight) S7 fro Sbr Sgr Shb Shg Shr Shrr Skid control ecu (behind right side of dash) Skid control ecu w/ actuator Spdr Ss1 Ss2 W/ vsc W/o vsc Wng
HORN Horn Wiring Diagram for Lexus ES 300 2003 List of elements for Horn Wiring Diagram for Lexus ES 300 2003: 10 Combination switch Driver side j/b (behind left side of dash) Engine room j/b (on left side of engine compartment) G22 High horn Horn fuse 10a Horn relay Horn switch Hot at all times Low horn
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram (2 of 2) for Lexus ES 300 2003 List of elements for Instrument Cluster Wiring Diagram (2 of 2) for Lexus ES 300 2003: 59 (behind left side of dash) driver side j/b A/c control assembly (behind center of dash) A14 A15 A22 A32 A41 A42 A55 A60 A65 A69 A72 A74 A82 A84 A92 B105 B106 B125 B126 B37 (w/o vsc) B47 (w/o vsc) B54 B57 (w/ vsc) B64 B67 (w/ vsc) B74 B84 B86 Body ecu (attached to driver side j/b) Brake fluid level warning switch (on brake fluid reservoir) Clock Dome fuse 7.5a Driver side j/b (behind left side of dash) Drlp Ecu-acc fuse 5a Ed (at left fender) Engine control module (behind right side of dash) Engine room j/b (on left side of engine compt) Hot at all times Hot in acc or on Hot in on or start Ia (at dash reinforcement, left side) Id (at dash brace, right side) Ign fuse 15a L10 Navigation ecu (at left side of luggage compt) Oil pressure switch (on lower left front of engine block) Passenger side j/b (behind right side of dash) Radio & player w/ display Red Rheostat Spd Stereo component amplifier (mark levinson) (on right side of luggage compt) Thwo W/ navigation system W/ vsc W/o vsc
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram for Lexus ES 300 2003 List of elements for Courtesy Lamps Wiring Diagram for Lexus ES 300 2003: 87 (at dash reinforcement, left side) ia (in body harness, behind left rear combination light) b17 (in body harness, at right rear door sill) +b rda prg e A b6 A119 A120 A40 A56 A57 A60 A70 A74 A79 A84 A86 A87 Acc B10 B14 (in body harness, behind left rear combination light) B3 (in center of roof) B3 red (in center of roof) B54 b74 B64 b84 B8 (in body harness, at left rear door sill) Body ecu Combination meter Cyl b4 Cyl b6 Cyl rrcy rlcy pcty b4 Dcty b6 Diode (at left "c" pillar) Dome fuse 7.5a Door Door lock control receiver (at right "c" pillar) Driver side j/b (behind left side of dash) Ecu-acc fuse 5a Ecu-b fuse 10a Ecu-ig fuse 10a Fspt b5 Gauge 1 fuse 10a Gnd Hot at all times Hot in acc or on Hot in on or start Ia (at dash reinforcement left side) Id (at dash brace, right side) Ignition key cylinder light Interior light Junction connector 13 (near right front front of luggage compartment) Junction connector 5 (behind upper center of dash) K13 Left foot light Left front door courtesy light Left front door courtesy switch Left rear door courtesy light Left rear door courtesy switch Left vanity light Left visor switch Lgcy b6 Luggage compartment light Luggage compartment light switch Micro computer Noise filter (near left rear wheelwell) Off Opener garage door Overhead j/b (on front center of roof) Passenger side j/b (behind right side of dash) Passsenger side j/b (behind right (side of dash) Personel light Power Prg b5 Rda Red Rheostat Right foot light Right front door courtesy light Right front door courtesy switch Right rear door courtesy light Right rear door courtesy switch Right vanity light Right visor switch Sig W/ moon roof W/ vsc W/o moon roof W/o vsc Instrument Illumination Wiring Diagram for Lexus ES 300 2003 List of elements for Instrument Illumination Wiring Diagram for Lexus ES 300 2003: 61 A/c control assembly (behind center of dash) A/t shift lever illumination A115 A118 A13 A14 A17 A18 A19 A23 A28 A33 A38 A43 A48 A55 A56 A57 A58 A63 A64 A65 A68 A85 A86 A87 A88 A98 Absorber control switch B54 B64 B74 B84 Body ecu Cigarette lighter illumination Clock Combination meter Console box illumination Driver side j/b (behind left side of dash) Ecu-b fuse 10a Gauge 1 fuse 10a Glove box light switch Hazard switch Hot at all times Hot in on or start Hot w/ tail relay energized Ia (at dash reinforcement) left side) Id (at dash brace, right side) Junction connector 3 (behind left side of dash) Micro computer Panel fuse 10a Passenger side j/b (behind right side of dash) Power Radio & player radio & player with display Rear sunshade control switch Remote control mirror switch Rheostat W/ navigation W/ vsc W/o navigation W/o vsc
MEMORY SYSTEMS Memory Mirrors Wiring Diagram for Lexus ES 300 2003 List of elements for Memory Mirrors Wiring Diagram for Lexus ES 300 2003: 64 (w/ vsc) (w/o vsc) A j9 A/t indicator light switch (on transaxle) A100 A110 Acc B23 B67 b47 B77 b57 Ba (under driver's seat) Defogger system Down Driver side j/b (behind left side of dash) Driving position memory switch Ecu-acc fuse 5a Ecu-b fuse 10a Ecu-ig fuse 10a Gauge 2 fuse 10a Gnd Hot at all times Hot in acc or on Hot in on or start Hsrl Hssr Interior lights system J/c 1 (behind upper left side of dash) J/c 10 (behind lower right side of dash) J/c 3 (behind left side of dash) J/c 4 (behind left center of dash) J/c 6 & 7 (behind upper right side of dash) J/c 8 & 9 (behind upper right side of dash) K12 Left Left remote control mirror M+l M+r Memory mirror ecu (behind lower center of dash) Memory seat ecu (below left front seat) Mhl Mhr Mmry Mvl Mvr Operation switch Passenger side j/b (behind right side of dash) Pnk Pwr seat fuse 30a Remote control mirror switch Right Right remote control mirror Select switch Set Sw1 Sw2 Swb Swe Swlh Swlv Swrh Swrv Sysb Vsr Vsrl Vssr Memory Seat Wiring Diagram for Lexus ES 300 2003 List of elements for Memory Seat Wiring Diagram for Lexus ES 300 2003: 62 A/t indicator light switch (on transaxle) A100 A110 B22 B23 Ba (under driver's seat) Ba (under driver;s seat) Dcty Down Driver side j/b (behind left side of dash) Driver's power seat control switch Driving position memory switch Ecu-b fuse 10a Ecu-ig fuse 10a Fdwn Front Front vertical Frv+ Frv- Fup Gauge 2 fuse 10a Gnd Hot at all times Hot in on or start J/c 3 (bewhind left side of dash) J/c 6 & 7 (behind upper right side of dash) K12 Left front door courtesy switch Lifter Memory mirror ecu (behind lower center of dash) Memory seat ecu (below left front seat) Mmry Passenger side j/b (behind right side of dash) Pnk Power seat control switch (driver's seat lumbar support control) Power seat motor (driver's seat front vertical control) Power seat motor (driver's seat lifter control) Power seat motor (driver's seat lumbar support control) Power seat motor (driver's seat reclining control) Power seat motor (driver's seat slide control) Pwr seat fuse 30a Rcl+ Rcl- Rclf Rclr Rdwn Rear Reclining Red Rrv+ Rrv- Rup Set Sld+ Sld- Sldf Sldr Slide Sw1 Sw2 Swe Sysb
NAVIGATION Navigation Wiring Diagram for Lexus ES 300 2003 List of elements for Navigation Wiring Diagram for Lexus ES 300 2003: 53 A42 A82 Acc Aui+ Aui- Auo+ Auo- B16 B16 (in body harness, near navigation ecu) Combination meter D j6 Door speaker Driver side j/b (behind left side of dash) Exterior lights system Fl+ Fl- Gnd Hot at all times Hot in acc or on J/c 12 (forward of left rear fenderwell) J/c 6 & 7 (behind upper right side of dash) J6 d J6 e J7 d Left front Left tweeter Mobile telephone Navigation ecu (at left side of luggage compt) Nca Passenger side j/b (behind right side of dash) Pnk Rad 1 fuse 20a Rad 2 fuse 10a Radio & player with display Red Rev S19 Spd Stereo component amplifier (behind right side of dash) Sync Sync1 T15 Telephone computer (on left side of luggage compt) Tx+ Tx- Tx1+ Tx1- Vg1 Vr1 W/ cellular W/ mark levinson W/o cellular W/o mark levinson
PASSIVE RESTRAINTS Passive Restraints Wiring Diagram for Lexus ES 300 2003 List of elements for Passive Restraints Wiring Diagram for Lexus ES 300 2003: 14 B9 (on floor, behind right front seat) Ba (under driver's seat) Bb (under front passenger's seat) Driver side j/b (behind left side of dash) Gauge 2 fuse 10a Headlight beam level control ecu (behind lower center of dash) Hot in run or start J/c 10 (behind lower right side of dash) Left buckle switch (in buckle) Left tension reducer solenoid (at base of left "b" pillar) Right buckle switch (in buckle) Right tension reducer solenoid (at base of right "b" pillar) Ss2 W/ headlight beam level control system
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 3) for Lexus ES 300 2003 List of elements for Power Distribution Wiring Diagram (1 of 3) for Lexus ES 300 2003: 75 (behind left side of dash) driver side j/b (not used) A10 A11 A12 Abs, air conditioning, charging, combination meter, cruise control, electronic modulated suspension, electronically controlled transmission & a/t indicator, engine control Abs, automatic glare-resistant ec mirror & compass, back- up light, cruise control, electro- nically controlled transmission & a/t indicator, headlight beam level control, moon roof, multiplex communication system, power seat, rear sunshade, rear window defogger & mirror heater, remote control mirror, tension reducer, vsc, power adjustable pedals Abs, automatic light control, cellular mobile telephone, headlight (w/drl), headlight (w/o drl), interior light, key reminder, light auto turn off, moon roof, multiplex communication system, power seat, power window, remote control mirror, seat belt warning, srs, theft deterrent & door lock control, vsc, wireless door lock. Acc Acc relay Air conditioning system, seat belt warning, srs Alt fuse 120a Am1 fuse 5a Automatic light control, cellular mobile telephone, clock, interior light, key reminder, light auto turn off, multiplex communication system, remote control mirror, theft deterrent & door lock control Battery Body ecu Cig fuse 15a Cigarette lighter Clock, combination meter, taillight & stop light, illumination D10 Def fuse 40a Def relay Ecu- acc fuse 5a Ecu-ig fuse 10a Electronic modulated suspension, radiator fan & condenser fan Engine control, rear window defogger & mirror heater Engine control, taillight & stop light Engine room relay block (on left side of eng compt) Fan rly fuse 10a From alt fuse (diagram 1 of 3) From ig1 relay (diagram 1 of 3) From ignition switch (diagram 2 of 3) G15 G16 G21 G24 Gauge1 fuse 10a Gauge2 fuse 10a Generator H13 Htr fuse 10a Ia (left dash reinforce- ment) Ib (left dash brace) Ig1 relay Illumination, interior light, key reminder, lexus navigation system, radio & player, multiplex communication system, seat belt warning, shift lock, srs, taillight & stop light, turn signal & hazard warning light, vsc J/c j4 K12 K18 K19 Lexus navigation system, radio & player Mir htr fuse 10a Noise filter Panel fuse 5a Pnk Power outlet Power point fuse 15a Rad fuse 10a Rear sunshade Seat heater Seat htr fuse 20a Sig Sun- shade fuse 15a Tail fuse 10a Tail relay To acc relay (diagram 1 of 3) To driver side j/b (diagram 1 of 3) To driver side j/b (diagram 2 of 3) To engine room j/b (diagram 2 of 3) To engine room j/b (diagram 3 of 3) To ignition switch (diagram 2 of 3) Washer fuse 15a Window defogger Wiper & washer Wiper fuse 25a Wiper washer Power Distribution Wiring Diagram (2 of 3) for Lexus ES 300 2003 List of elements for Power Distribution Wiring Diagram (2 of 3) for Lexus ES 300 2003: 77 +bm Abs & ba & trac & vsc actuator Abs 2 fuse 40a Abs 3 fuse 30a Abs 4 fuse 7.5a Abs mtr relay Abs sol relay Abs, cruise control, electronic modulated suspension, taillight & stop light vsc Acc Adj pdl fuse 30a Am1 Am2 Amp fuse 25a Ast B10 B12 Bdr2 Body ecu C/opn relay Cds fuse 30a Charging, combination meter, cruise control, electronically controlled transmission & a/t indicator, engine control, engine immobilizer system, headlight beam level control, seat belt warning, srs, vsc Combination meter Door 2 fuse 25a Driver side j/b (behind left side of dash) Electronically controlled transmission & a/t indicator, engine control, shift lock Engine control Engine control module, park neutral position switch Engine control, starting & ignition Engine room j/b (on left side of eng compt) Engine room r/b (on left side of eng compt) Fan 1 relay Fog fuse 15a Fog light Fog relay From driver j From driver side j/b (diagram 1 of 3) From engine room j/b (diagram 3 of 3) From engine room relay block (diagram 1 of 3) Fuel lid opener Fuel open fuse 5a G12 G13 Htr fuse 50a Htr relay Ig1 Ig2 Ig2 fuse 10a Ign fuse 15a Ignition switch L10 Lexus navigation system, radio & player Lock Moon roof, multiplex communication system, power window, theft deterrent & door lock control, wireless door lock Multiplex communication system, power window Multiplex communication system, power window, theft deterrent & door lock control, wireless door lock Obd fuse 7.5a Power adjustable pedals Power seat, remote control mirror Pwr 1 fuse 30a Pwr 2 fuse 20a Pwr 3 fuse 20a Pwr 4 fuse 20a Pwr seat fuse 30a Radiator fan & condenser fan Rdi fuse 30a Red Side j/b (diagram 1 of 3) Skid control ecu St fuse 5a St relay St1 St2 Start Starter Stop fuse 15a To driver side j/b (diagram 1 of 3) W/ vsc Power Distribution Wiring Diagram (3 of 3) for Lexus ES 300 2003 List of elements for Power Distribution Wiring Diagram (3 of 3) for Lexus ES 300 2003: 50 (not used) A/f fuse 25a Air conditioning, automatic light control, combination meter, headlight, illumination, interior light, key reminder, lexus navigation system, radio & player, light auto turn off, luggage compartment door opener, moon roof, multiplex communication system, power seat, power window, remote control mirror, theft deterrent & door lock control, vsc, wireless door lock Alt-s fuse 5a Am2 fuse 30a B11 Bdr2 Body ecu Cellular mobile telephone Charging Clock, garage door opener, interior light, luggage compartment door opener, moon roof, multiplex communication system, power window, theft deterrent & door lock control, wireless door lock Combi- nation meter, fog light headlight, multiplex commu- nication system Cruise control, electro- nically controlled transmission & a/t indicator engine control engine immo- biliser system Cruise control, engine control D.c.c. fuse 30a Dome fuse 7.5a Door1 fuse 25a Driver side j/b (behind left side of dash) Drl fuse 5a Drl relay Ecu-b fuse 10a Efi fuse 20a Efi relay Engine control Engine room j/b (on left side of eng compt) Engine room r/b (on left side of egn compt) Etcs fuse 10a From engine room relay block (diagram 1 of 3) Haz fuse 15a Head lh lwr fuse 15a Head lh upr fuse 10a Head relay Head rh lwr fuse 15a Head rh upr fuse 10a Headlight, multiplex commu- nication system Headlight, multiplex communication system Horn fuse 10a Horn relay K11 K13 Lexus navigation system, radio & player Luggage compartment door opener, multiplex communication system, power window, theft deterrent & door lock control, wireless door lock Main fuse 40a Rad 1 fuse 20a Red Tel fuse 5a To ignition switch (diagram 2 of 3) Turn signal & hazard warning light W/ drl W/o drl
POWER MIRRORS Electrochromic Mirror Wiring Diagram for Lexus ES 300 2003 List of elements for Electrochromic Mirror Wiring Diagram for Lexus ES 300 2003: 17 Driver side j/b (behind left side of dash) Ec+ Ec- Gauge 2 fuse 10a Gnd Gnd5 Hot in on or start Ia (at dash reinforcement, left side) Ig1 Inner mirror & compass J/c 10 (behind lower right side of dash) J/c 5 (behind upper left side of dash) Left remote control mirror Overhead j/b (moon roof) (on front center of roof) Right remote control mirror W/ moon roof W/o moon roof Power Mirrors Wiring Diagram for Lexus ES 300 2003 List of elements for Power Mirrors Wiring Diagram for Lexus ES 300 2003: 28 B47 B57 B67 B77 Defogger system Down Driver side j/b (behind left side of dash) Ecu-acc fuse 5a Hot in on or acc Interior lights system J/c 1 (behind upper left side of dash) J/c 3 (behind left side of dash) J/c 4 (behind left center of dash) J/c 8 & 9 (behind upper right side of dash) Left Left remote control mirror Mlh Mlv Mrh Mrv Operation switches Passenger side j/b (behind right side of dash) Remote control mirror switch Right Right remote control mirror Select switches W/ vsc W/o vsc
POWER SEATS Adjustable Pedal Wiring Diagram for Lexus ES 300 2003 List of elements for Adjustable Pedal Wiring Diagram for Lexus ES 300 2003: 19 A/t indicator light switch (on transaxle) A110 Adj pdl fuse 30a Adj pdl relay Adjustable pedal motor (behind left side of dash) Adjustable pedal switch Back Driver side j/b (behind left side of dash) Ec (at left fender) Engine room j/b (on left side of engine compt) Engine room r/b (on left side of engine compt) Front Gauge 2 fuse 10a Hot at all times Hot in on or start J/c 4 (behind left center of dash) J/c 6 & 7 (behind upper right side of dash) b Passenger side j/b (behind right side of dash) Red Heated Seats Wiring Diagram for Lexus ES 300 2003 List of elements for Heated Seats Wiring Diagram for Lexus ES 300 2003: 19 A/c control assembly (behind center of dash) B22 B24 Ba (under driver's seat) Bb (under front passenger's seat) Driver side j/b (behind left side of dash) Hot in on or start Left seat heater Right seat heater Seat htr fuse 20a Sgnd Shd+ Shd- Shde Shdt Shp+ Shp- Shpe Shpt Power Seats Wiring Diagram for Lexus ES 300 2003 List of elements for Power Seats Wiring Diagram for Lexus ES 300 2003: 28 (driver's seat lumbar support control) B23 B24 Ba (under driver's seat) Bb (under front passenger's seat) Down Driver side j/b (behind left side of dash) Driver's power seat control switch Front Front passenger's power seat control switch Hot at all times Lifter Power seat control switch Power seat motor (driver's seat front vertical control) Power seat motor (driver's seat lifter control) Power seat motor (driver's seat lumbar support control) Power seat motor (driver's seat reclining control) Power seat motor (driver's seat slide control) Power seat motor (front passenger's seat front vertical control) Power seat motor (front passenger's seat lifter control) Power seat motor (front passenger's seat reclining control) Power seat motor (front passenger's seat slide control) Pwr seat fuse 30a Rear Reclining Red Slide Vertical
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram for Lexus ES 300 2003 List of elements for Power Top/Sunroof Wiring Diagram for Lexus ES 300 2003: 53 (under driver's seat) ba A40 A60 B10 Body ecu (attached to driver side j/b) Buzzer Bzr Close/up D12 Dcty Dome fuse 7.5a Door lock control receiver (at right "c" pillar) Down/ open Driver door ecu (in middle of left front door) Driver side j/b (behind left side of dash) Eb (at right fender) Ecu-b fuse 10a Ecu-ig fuse 10a Gauge 2 fuse 10a Gnd Hot at all times Hot in on or start Ia (at dash reinforcement, left side) Id (at dash brace, right side) J/c 10 (behind lower right side of dash) J/c 13 (near right front of luggage compt) Keye Keyless buzzer Keyless buzzer on/off switch Kul Left front door courtesy switch Left front door key lock & unlock switch Left rear door courtesy switch Moon roof control ecu & motor (at center front of roof) Moon roof ecu Mpx1 Open/down Overhead j/b (on front center of roof) Passenger side j/b (behind right side of dash) Pcty Prg Pwr 1 fuse 30a Pws Rda Red Right front door courtesy switch Right rear door courtesy switch Rlcy Rrcy Sgnd Sig Up/ close Wopn
POWER WINDOWS Power Windows Wiring Diagram for Lexus ES 300 2003 List of elements for Power Windows Wiring Diagram for Lexus ES 300 2003: 83 (at dash reinforcement, ia (at dash reinforcement, right side) if (at front side of left rear wheelwell) (forward of left rear fenderwell) j/c 12 A40 A56 A60 A66 A70 B11 Ba (under driver's seat) Bd (at front side of right rear wheelwell) Bdr Bdr1 Bdr2 Body ecu (attached to driver side j/b) Buzzer Bzr Cpub Dcty Dome fuse 7.5a Door Door 1 fuse 25a Door 2 fuse 25a Door lock control receiver (at right "c" pillar) Driver door ecu (in middle of left front door) Driver side j/b (behind left side of dash) Eb (at right fender) Ecu-b fuse 10a Ecu-ig fuse 10a Engine room j/b (on left side of engine compartment) Front passenger door ecu (in middle of right front door) G14 Gnd Hot at all times Hot in on or start Id (at dash brace, right side) Ignition key cylinder light Interior light J8 b Junction connector 13 (near right front of luggage compartment) Junction connector 8 & 9 (behind upper right side of dash) K11 K12 Keye Keyless buzzer (at right front corner of engine compartment) Keyless buzzer on/off switch Kul Left front door courtesy switch Left front door key lock/ unlock switch Left front power window motor Left rear door courtesy switch Left rear door ecu (in middle of left rear door) Left rear power window motor Left side) Lmt Mdn Mpx1 Mpx2 Mpx4 Mpx5 Mup Passenger side j/b (behind right side of dash) Pct Pcty Pls Prg Pwr 1 fuse 30a Pwr 2 fuse 20a Pwr 3 fuse 20a Pwr 4 fuse 20a Rda Red Right front door courtesy switch Right front power window motor Right rear door courtesy switch Right rear door ecu (in middle of right rear door) Right rear power window motor Rlcy Rrcy Sgnd Sig Wlsw Rear Window Sun Shade Wiring Diagram for Lexus ES 300 2003 List of elements for Rear Window Sun Shade Wiring Diagram for Lexus ES 300 2003: 14 Back-up light switch (on transaxle) Bc (at front side of left rear wheelwell) Driver side j/b (behind left side of dash) Gauge 2 fuse 10a H13 Hot in on or start Ib (at dash brace, left side) Junction connector 1 (behind upper left side of dash) Junction connector 12 (forward of left rear fenderwell) Junction connector 4 (behind left center of of dash) Rear sunshade control relay (near front center of luggage compartment) Rear sunshade control switch Rev Sunshade fuse 15a
RADIO Radio Wiring Diagram, 1 CD without Mark Levinson without Navigation for Lexus ES 300 2003 List of elements for Radio Wiring Diagram, 1 CD without Mark Levinson without Navigation for Lexus ES 300 2003: 52 Acc Amp Amp+ Beep Driver side j/b (behind left side of dash) Fl+ Fl- Fr+ Fr- Gnd Hot at all times Hot in acc or on Ic (at dash brace, right side) J/c 6 & 7 (behind upper right side of dash) Left front door speaker Left tweeter Mute Nca Pnk Rad 1 fuse 20a Rad 2 fuse 10a Radio & player Red Right front door speaker Right rear door speaker Right tweeter Rl+ Rl- Rr+ Rr- S10 S11 S12 S14 S15 Sgd3 Sgnd Short connector (near left side of luggage compt) Spin+ Spin- Spout+ Spout- Stereo component amplifier (behind right side of dash) T11 T12 T13 Telephone computer (on left side of luggage compartment) W/ telephone W/o telephone Wf+ Wf- Woofer Radio Wiring Diagram, 6 CD without Mark Levinson without Navigation for Lexus ES 300 2003 List of elements for Radio Wiring Diagram, 6 CD without Mark Levinson without Navigation for Lexus ES 300 2003: 50 Acc Driver side j/b (behind left side of dash) Fl+ Fl- Fr+ Fr- Gnd Hot at all times Hot in acc or on I4 (in dash harness, near stereo component amplifier) Ic (at dash brace, right side) J/c 6 & 7 (behind upper right side of dash) Left front door speaker Left tweeter Mute Nca Pnk Rad 1 fuse 20a Rad 2 fuse 10a Radio & player Red Right front door speaker Right rear door speaker Right tweeter Rl+ Rl- Rr+ Rr- S10 S11 S14 S15 Sgnd Short connector (near left side of luggage compartment) Spin+ Spin- Spout+ Spout- Stereo component amplifier (behind right side of dash) T11 T12 T13 Telephone computer (on left side of luggage compartment) Tx+ Tx- W/ telephone W/o telephone Wf+ Wf- Woofer Radio Wiring Diagram, with Mark Levinson with Navigation with Telephone (1 of 2) for Lexus ES 300 2003 List of elements for Radio Wiring Diagram, with Mark Levinson with Navigation with Telephone (1 of 2) for Lexus ES 300 2003: 42 (in dash harness, near ih1) (near stereo component amplifier) A32 A41 A42 A82 Acc Acc+b Amp fuse 25a Aui+ Aui- Auo+ Auo- Bu+b Cd automatic changer Combination meter Driver side j/b (behind left side of dash) Exterior lights system Gnd Hot at all times Hot in acc or on Ic (at dash brace, right side) J/c 12 (forward of left rear fenderwell) J/c 6 & 7 (behind upper right side of dash) Left front door speaker Mute Navigation ecu (at left side of luggage compt) Nca Passenger side j/b (behind right side of dash) Pnk Rad 1 fuse 20a Rad 2 fuse 10a Radio & player w/ display Red Rev Sld Sld2 Spd Sync Tlmt Tx+ Tx- Radio Wiring Diagram, with Mark Levinson with Navigation with Telephone (2 of 2) for Lexus ES 300 2003 List of elements for Radio Wiring Diagram, with Mark Levinson with Navigation with Telephone (2 of 2) for Lexus ES 300 2003: 53 (in body harness, near navigation ecu) Acc B16 B16 (in body harness, near navigation ecu) B21 Fl+ Fl- Fr+ Fr- Gnd Ic (at dash brace, right side) J/c 13 (near right front of luggage compartment) Left rear door speaker Left tweeter Mute Mute t11 Pnk Red Right front door speaker Right rear door speaker Right tweeter Rl+ Rl- Rr+ Rr- S18 S19 Spd Spin+ Spin- Spout+ Spout- Stereo component amplifier (on right side of luggage compartment) Sync Sync1 T12 T13 T14 T15 Telephone computer (on left side of luggage compartment) Tfl+ Tfl- Tfr+ Tfr- Tx+ Tx- Tx1 Tx1+ Vg1 Vr1 Wf+ Wf- Woofer speaker Radio Wiring Diagram, with Mark Levinson with Navigation without Telephone (1 of 2) for Lexus ES 300 2003 List of elements for Radio Wiring Diagram, with Mark Levinson with Navigation without Telephone (1 of 2) for Lexus ES 300 2003: 41 (forward of left rear fenderwell) (in dash harness, near ih1) (near stereo component amplifier) A32 A41 A42 A82 Acc Acc+b Aui+ Aui- Auo+ Auo- B16 (in body harness, near navigation ecu) Bu+b Cd automatic changer Combination meter Driver side j/b (behind left side of dash) Exterior lights system Gnd Hot at all times Hot in acc or on J/c 12 J/c 6 & 7 (behind upper right side of dash) Left front door speaker Mute Navigation ecu (at left side of luggage compartment) Nca Passenger side j/b (behind right side of dash) Pnk Rad 1 fuse 20a Rad 2 fuse 10a Radio & player w/ display Red Rev Sld Sld2 Spd Sync Tx+ Tx- Radio Wiring Diagram, with Mark Levinson with Navigation without Telephone (2 of 2) for Lexus ES 300 2003 List of elements for Radio Wiring Diagram, with Mark Levinson with Navigation without Telephone (2 of 2) for Lexus ES 300 2003: 40 Acc Amp fuse 25a B21 Driver side j/b (behind left side of dash) Fl+ Fl- Fr+ Fr- Gnd Hot at all times Ic (at dash brace, right side) J/c 13 (near right front of luggage compartment) Left rear door speaker Left tweeter Mute Pnk Red Right front door speaker Right rear door speaker Right tweeter Rl+ Rl- Rr+ Rr- S14 S15 S18 S19 Short connector (near left side of luggage compartment) Spd Stereo component amplifier (on right side of luggage compt) Tfl+ Tfl- Tfr+ Tfr- Tx+ Tx- Wf+ Wf- Woofer speaker Radio Wiring Diagram, with Mark Levinson without Navigation for Lexus ES 300 2003 List of elements for Radio Wiring Diagram, with Mark Levinson without Navigation for Lexus ES 300 2003: 61 (behind upper right side of dash) Acc Amp fuse 25a B21 Bb (under front passenger's seat) Driver side j/b (behind left side of dash) Fl+ Fl- Fr+ Fr- Gnd Hot at all times Hot in acc or on I4 (in dash harness, near stereo component amplifier) Ic (at dash brace, right side) Instrument cluster system J/c 13 (near right front of luggage compartment) J/c 6 Left front door speaker Left tweeter Mute Nca Pnk Rad 1 fuse 20a Rad 2 fuse 10a Radio & player Red Right front door speaker Right rear door speaker Right tweeter Rl+ Rl- Rr+ Rr- S14 S15 S18 S19 Sgnd Short connector (near left side of luggage compartment) Spd Spin+ Spin- Spout+ Spout- Stereo component amplifier (on right side of luggage compt) T11 T12 T13 Telephone computer (on left side of luggage compartment) Tfl+ Tfl- Tfr+ Tfr- Tx+ Tx- W/ telephone W/o telephone Wf+ Wf- Woofer Radio Wiring Diagram, without Mark Levinson with Navigation with Telephone (1 of 2) for Lexus ES 300 2003 List of elements for Radio Wiring Diagram, without Mark Levinson with Navigation with Telephone (1 of 2) for Lexus ES 300 2003: 40 (in dash harness, near ih1) A41 A42 A82 Acc Acc+b Aui+ Aui- Auo+ Auo- Bu+b Cd automatic changer Combination meter Driver side j/b (behind left side of dash) Exterior lights system Gnd Hot at all times Hot in acc or on I4 (in dash harness, near stereo component amplifier) J/c 12 (forward of left rear fenderwell) J/c 6 & 7 (behind upper right side of dash) Left front door speaker Left tweeter Mute Navigation ecu (at left side of luggage compt) Nca Passenger side j/b (behind right side of dash) Pnk Rad 1 fuse 20a Rad 2 fuse 10a Radio & player w/ display Red Rev Sld Sld2 Spd Sync Tlmt Tx+ Tx- Radio Wiring Diagram, without Mark Levinson with Navigation with Telephone (2 of 2) for Lexus ES 300 2003 List of elements for Radio Wiring Diagram, without Mark Levinson with Navigation with Telephone (2 of 2) for Lexus ES 300 2003: 43 (in body harness, near navigation ecu) Acc B16 B16 (in body harness, near navigation ecu) Fl+ Fl- Fr+ Fr- Ic (at dash brace, right side) Left rear door speaker Mute Mute t11 Pnk Red Right front door speaker Right rear door speaker Right tweeter Rl+ Rl- Rr+ Rr- S10 S11 Spin+ Spin- Spout+ Spout- Stereo component amplifier (behind right side of dash) Sync Sync1 T12 T13 Telephone computer (on left side of luggage compartment) Tx+ Tx- Tx- t14 Tx1 Tx1+ Vf1 Vg1 t15 Wf+ Woofer speaker Wr- Radio Wiring Diagram, without Mark Levinson with Navigation without Telephone (1 of 2) for Lexus ES 300 2003 List of elements for Radio Wiring Diagram, without Mark Levinson with Navigation without Telephone (1 of 2) for Lexus ES 300 2003: 40 (in body harness, at left kick panel) (in dash harness, near ih1) A41 A42 A82 Acc Acc+b Aui+ Aui- Auo+ Auo- Bu+b Cd automatic changer Combination meter Driver side j/b (behind left side of dash) Exterior lights system Gnd Hot at all times Hot in acc or on I4 (in dash harness, near stereo component amplifier) J/c 12 (forward of left rear fenderwell) J/c 6 & 7 (behind upper right side of dash) Left front door speaker Left tweeter Mute Navigation ecu (at left side of luggage compt) Nca Passenger side j/b (behind right side of dash) Pnk Rad 1 fuse 20a Rad 2 fuse 10a Radio & player w/ display Red Rev Sld Sld2 Spd Sync Tx+ Tx- Radio Wiring Diagram, without Mark Levinson with Navigation without Telephone (2 of 2) for Lexus ES 300 2003 List of elements for Radio Wiring Diagram, without Mark Levinson with Navigation without Telephone (2 of 2) for Lexus ES 300 2003: 28 Acc Fl+ Fl- Fr+ Fr- Ic (at dash brace, right side) Left rear door speaker Mute Pnk Red Right front door speaker Right rear door speaker Right tweeter Rl+ Rl- Rr+ Rr- S10 S11 S14 S15 Short connector (near left side of luggage compt) Stereo component amplifier (behind right side of dash) Tx+ Tx- Wf+ Woofer speaker Wr-
SHIFT INTERLOCK Shift Interlock Wiring Diagram for Lexus ES 300 2003 List of elements for Shift Interlock Wiring Diagram for Lexus ES 300 2003: 20 A111 A116 A117 A51 A55 A57 Driver side j/b (behind left side of dash) G13 Gauge 1 fuse 10a Hot at all times Hot in on or start Ia (at dash reinforcement, left side) Passenger side j/b (behind right side of dash) Shift lock control ecu (under center floor console) Shift lock solenoid Sls+ Sls- Stop fuse 15a Stoplight switch (behind left side of dash) Stp
STARTING/CHARGING Charging Wiring Diagram for Lexus ES 300 2003 List of elements for Charging Wiring Diagram for Lexus ES 300 2003: 31 A107 A57 Acc Alt fuse link 120a Alt-s fuse 5a Altl Am2 fuse 30a B105 B115 B75 B85 B95 Battery Battery ground Body ecu (attached to driver side j/b) Charge indicator Comb- ination meter Driver side j/b (behind left side of dash) Engine room j/b (on left side of engine compt) Engine room r/b (on left side of engine compt) Gauge 1 fuse 10a Generator Hot in on or start Ig2 fuse 10a Ignition switch Lock Nca Passenger side j/b (behind right side of dash) Start W/ vsc W/o vsc Starting Wiring Diagram for Lexus ES 300 2003 List of elements for Starting Wiring Diagram for Lexus ES 300 2003: 27 Acc Alt fuse link 120a Am1 Am1 fuse 5a Am2 Am2 fuse 30a Battery Battery ground Driver side j/b (behind left side of dash) Ec (at left fender) Engine control module (behind right side of dash) Engine room j/b (on left side of engine compt) Engine room r/b (on left side of engine compartment) Engine room r/b (on left side of engine compt) Ignition switch Instrument cluster system Lock Nca Nsw Park/neutral position switch (on transaxle) St fuse 5a St1 St2 Sta Start Starter Starter relay
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram (1 of 2) for Lexus ES 300 2003 List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Lexus ES 300 2003: 67 (above left rear fenderwell) left curtain shield air bag sensor (under front passenger's seat) bb +sl +sr -sl -sr A30 A31 A32 Air bag sensor assembly (under front of center floor console) Air bag squib (steering wheel pad) Body ecu Csl+ Csl- Csr+ Csr- D10 D2+ D2- Driver side j/b (behind left side of dash) Ecu-ig fuse 10a Engine room j/b (on left side of engine compartment) Escl Escr Esl Esr Gsw Hot in on or start Icl+ Icl- Icr+ Icr- Id (at right side dash brace) Ig1 Ig2 Ig2 fuse 10a J/c 14 (near right front kick panel) Lbe+ Left curtain shield air bag squib Left pretensioner Left side air bag squib Lsp+ Lsp- Occupant detection sensor P2+ P2- Pbew Pl+ Pl- Pnk Pr+ Pr- Rbe+ Right buckle switch (on right front seat belt buckle) Right curtain shield air bag sensor (above right rear fenderwell) Right curtain shield air bag squib Right pretensioner Right side air bag squib Sfl+ Sfl- Sfr+ Sfr- Sil Vucl Vucr Vupl Vupr Supplemental Restraints Wiring Diagram (2 of 2) for Lexus ES 300 2003 List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Lexus ES 300 2003: 49 (at left side dash reinforcement) 1a (at lower left "b" pillar) left side air bag sensor (at right side dash brace) id (front passenger air bag assembly no.1) air bag squib (front passenger air bag assembly no.2) air bag squib (on left front seat belt buckle) left buckle switch (under driver's seat) ba (w/o vsc) (w/vsc) (w/vsc) (w/o vsc) A/c control assembly (behind center of dash) A14 A15 A29 A57 A59 A87 B41 B42 B51 B52 B54 b74 B61 B62 B71 B72 B84 b64 Combination meter Connector 3 (partial) (at lower left side of dash) Data link Driver side j/b (behind left side of dash) Esl Gauge 1 fuse 10a Hot in on or start Htr fuse 10a J/c 5 (behind upper left side of dash) K14 Left front air bag sensor (on left front of engine compartment) P2+ P2- Passenger side j/b (behind right side of dash) Passenger side j/b (right side of dash) Pbew Right front air bag sensor (on right front of engine compartment) Seat position air bag sensor Solid state Srs Vupl W/ vsc W/o vsc
TRANSMISSION A/T Wiring Diagram (2 of 2) for Lexus ES 300 2003 List of elements for A/T Wiring Diagram (2 of 2) for Lexus ES 300 2003: 58 (dash harn, near grommet on right side of firewall) (dash harn, near grommet on right side of firewall) i6 (dash harn, near stereo component amplifier) Acc B109 B118 B129 B78 B98 Counter gear speed sensor (near rear of engine) Dsl E01 E02 E03 E04 E05 E10 Ee (left side of cylinder head) Ef (intake side of cylinder block) Electronically controlled transmission solenoid (on transaxle) Engine control module (ecm) (behind right side of dash) Engine controls system Engine coolant temperature sensor (on top front of engine) Engine room j/b (on left side of engine compt) Eom Hot at all times Ignition switch J/c 11 (behind lower right side of dash) Lock Me01 Nc+ Nc- Nca Nsw Nt+ Nt- P/n Park/ neutral position switch (on transaxle) Passenger side j/b (behind right side of dash) Red Sl1+ Sl1- Sl2+ Sl2- Sl3+ Sl3- Slt+ Slt- Sta Start Tho Throttle position sensor (on throttle body) Thw Turbine speed sensor (near left rear of engine) Vta1 Vta2 W/ vsc W/o vsc
TRUNK, TAILGATE, FUEL DOOR Trunk, Tailgate, Fuel Door Wiring Diagram for Lexus ES 300 2003 List of elements for Trunk, Tailgate, Fuel Door Wiring Diagram for Lexus ES 300 2003: 35 B11 B17 (behind (left rear combination light) B20 Bdr1 Bdr2 Be (at lower center of back panel) Body ecu Diode (at left "c" pillar) Dome fuse 7.5a Door 1 fuse 25a Door 2 fuse 25a Driver side j/b (behind left side of dash) Ecu-b fuse 10a Engine room j/b (on left side of engine compt) Fuel lid opener solenoid (on left side of luggage compt) Fuel lid opener switch Fuel open fuse 5a G14 Gnd Hot at all times Ia (at dash reinforcement, left side) Id (at dash brace, right side) Junction connector 1 (behind upper left side of dash) Junction connector 4 (behind left center of dash) K13 Lgcy Luggage com- partment light Luggage compartment door opener motor & light switch (on center rear of luggage compt lid) Luggage compartment door opener switch Main luggage compartment door opener switch Noise filter (near left rear wheelwell) Red Sgnd Tkul Tr+
WARNING SYSTEMS Warning Systems Wiring Diagram for Lexus ES 300 2003 List of elements for Warning Systems Wiring Diagram for Lexus ES 300 2003: 72 (behind left side of dash) driver side j/b (under driver's seat) ba (under front passenger's seat) bb A/c control assembly (behind center of dash) A14 A15 A29 A30 A31 A55 A56 A57 A59 A75 A86 A87 Acc Air bag sensor assembly (under front of center floor console) B11 B26 B27 B46 B47 B54 B64 B74 B84 Body ecu (attached to driver side j/b) Buzzer Combination meter D10 Dcty Door ind Drlp Ecu-acc fuse 5a Ecu-b fuse 10a Ecu-ig fuse 10a Engine room j/b (on left side of engine compt) Gauge1 fuse 10a Gnd Hot at all times Hot in acc or on Hot in on or start Htr fuse 10a Ia (left dash reinforcement, left side) Id (at dash brace, right side) Ig1 Ig2 Ig2 fuse 10a Junction connector 14 (near right front kick panel) Junction connector 5 (behind upper left side of dash) K14 Ksw Lbe+ Left buckle switch (on left front seat belt buckle) Left front door courtesy switch Lsp+ Lsp- Micro computer Occupant detection sensor Passenger side j/b (behind right side of dash) Pbew Power Rbe+ Right buckle switch (on right front seat belt buckle) Seat belt indicator Seat position air bag sensor Sgnd Sig Unlock warning switch W/ vsc W/o vsc
WIPER/WASHER Wiper/Washer Wiring Diagram, with Auto Wiper System for Lexus ES 300 2003 List of elements for Wiper/Washer Wiring Diagram, with Auto Wiper System for Lexus ES 300 2003: 40 (behind upper center of dash) j/c 2 +2s +sm +ssw A11 A57 A87 Auto Combination meter Combination switch Driver side j/b (behind left side of dash) Eb (at right fender) Ed (at left fender) Front wiper motor (on left side of firewall) Gauge 1 fuse 10a High Hot in on or start Ia (at dash reinforcement, left side) Ib (at dash brace, left side) J/c 2 (behind upper center of dash) J/c 4 Low Off Pa1 Passenger side j/b (behind right side of dash) Pnk Rain sensor (on front center of roof) Sig Spd Vr1 Vr2 Washer fuse 15a Washer level ind Washer level sensor (at right front corner of engine compt) Washer motor (at right front corner of engine compt) Washer switch Wip Wiper fuse 25a Wiper relay (behind lower center of dash) Wiper switch Wiper/Washer Wiring Diagram, without Auto Wiper System for Lexus ES 300 2003 List of elements for Wiper/Washer Wiring Diagram, without Auto Wiper System for Lexus ES 300 2003: 28 (at right front corner of engine compt) washer level sensor A11 A57 A87 Combination meter Combination switch Driver side j/b (behind left side of dash) Eb (at right fender) Ed (at left fender) Front washer switch Front wiper motor (on left side of firewall) Front wiper switch Gauge 1 fuse 10a High Hot in on or start Ib (at dash brace, left side) Int Int. time J/c 4 Low Off Passenger side j/b (behind right side of dash) Pnk Solid state Washer fuse 15a Washer level ind Washer motor (at right front corner of engine compt) Wiper fuse 25a
