Diagram sections — 28 (52 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY COMPUTER COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCKS STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING
ANTI-LOCK BRAKES Anti-lock Brake Wiring Diagrams (1 of 2) for Lexus IS 300 2001 List of elements for Anti-lock Brake Wiring Diagrams (1 of 2) for Lexus IS 300 2001: 67 A10 A11 A12 A13 A14 A15 A16 A17 A18 A19 A20 A21 A22 A23 A24 A25 A26 A27 A28 A29 A30 A31 Abs & traction ecu (behind left end of dash) Abs & traction actuator (right side of engine compt, forward of strut tower) Abs fuse 60a Abs motor relay Abs sol relay Ast D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D20 D21 D22 Engine room r/b 1 (right rear of engine compt) Engine room r/b 2 (right rear of engine compt) Fl+ Fl- Fr+ Fr- G202 G203 (behind right kick panel) Gnd1 Hot at all times J/c 5 (behind left end of dash) Left front abs speed sensor Pnk Red Right front abs speed sensor Sflh Sflr Sfrh Sfrr Smc Spc Src Srlh Srlr Srrh Srrr Anti-lock Brake Wiring Diagrams (2 of 2) for Lexus IS 300 2001 List of elements for Anti-lock Brake Wiring Diagrams (2 of 2) for Lexus IS 300 2001: 94 A10 A18 A19 Abs & traction ecu (behind left end of dash) Abs ind B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 B21 B22 B23 B24 Brake fluid level switch Brake ind C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 Combination meter Csw D/g Data link connector 1 (left front of engine compt) Data link connector 3 (behind lower left side of dash) Driver side j/b (behind lower left end of dash) Ecu-ig fuse 10a Eng+ Eng- Engine control module (left front of engine compt) Fro G104 (rear of left front fender) G201 (lower center of dash) G202 G203 (behind right kick panel) Gauge fuse 10a Gnd2 Gnd3 Headlight beam level control ecu (behind left end of dash) Hot at or start Hot in on or start Ig1 Ind Interior lights system J/c 3 (left side of engine compt) J/c 5 (behind left end of dash) J/c 6 (behind left side of dash) J/c 7 (behind upper right side of dash) Lbl+ Lbl- Left rear abs speed sensor Neo Parking brake switch (on brake lever) Passenger side j/b (behind lower right end of dash) Pkb Pnk Red Right rear abs speed sensor Rl+ Rl- Rr+ Rr- Slip ind Sp1 Spdr Speedo Stop fuse 15a Stoplight switch (on bracket, above brake pedal) Stp Trac off ind Traction off switch Trc+ Trc-
ANTI-THEFT Anti-theft Wiring Diagram (1 of 3) for Lexus IS 300 2001 List of elements for Anti-theft Wiring Diagram (1 of 3) for Lexus IS 300 2001: 52 (below center of rear window, on speaker shelf) wireless door lock control receiver (exterior lights system) A10 Acc B10 B14 B15 B16 B19 Becu Body ecu (behind lower left end of dash, integral with driver side junction block) Bsub Bzr Bzr2 Dcty Door fuse 20a Driver side junction block (behind lower left end of dash) Ecu-ig fuse 10a Flasher relay G202 Gnd2 Ground Haz Hot at all times Hot in acc or run Hot in run or start I2 (dash splice, behind left side of dash) Junction conenctor j/c 5 (behind left end of dash) Junction connector j/c 12 (above left rear fenderwell) Junction connector j/c 16 (above right rear fenderwell) Junction connector j/c 6 (behind left side of dash, forward of instrument cluster) Keyless buzzer (near top of left front wheelwell, inside fender) L10 Left front door courtesy switch Left rear door courtesy switch Left rear door lock detection switch Lgcy Lsr Lswp Luggage compt door courtesy switch Mpx1 Mpx2 Mpx3 Obd2 Pcty Prg Radio 2 fuse 10a Rcty Rda Right front door courtesy switch Right rear door courtesy switch Tail relay Anti-theft Wiring Diagram (2 of 3) for Lexus IS 300 2001 List of elements for Anti-theft Wiring Diagram (2 of 3) for Lexus IS 300 2001: 32 (above left rear fenderwell) junction connector j/c 12 (in left front door) junction connector j/c 11 Alt fuse 120a Bdm Driver side junction block (behind lower left end of dash) Efi fuse 25a Efi relay Engine room relay block 1 (on right rear of engine compt) Engine room relay block 2 (on right rear of engine compt) G203 (behind right kick panel) G301 (under right front seat) G414 Headlight relay Headlights system Horn fuse 10a Horn relay Horn system Hot at all times Junction connector j/c 15 (on left side of luggage compt, behind left fenderwell) Junction connector j/c 16 (above right rear fenderwell) Kul Left front door key lock & unlock switch & door lock detection switch Lock Lock detect Lswd Luggage compartment door key unlock switch Main fuse 40a Power window master switch Red Right front door lock detection switch Right rear door lock detection switch Unlk Anti-theft Wiring Diagram (3 of 3) for Lexus IS 300 2001 List of elements for Anti-theft Wiring Diagram (3 of 3) for Lexus IS 300 2001: 68 (a12-a18 not used) (a20-a21 not used) (a5-a9 not used) (b5-b6 not used) (b9-b11 not used) (dash splice, behind left side of dash) i2 +b1 +b2 A/c control assembly A10 A11 A12 A13 A18 A19 A20 A21 A22 A23 B10 B12 Batt C10 C27 C28 Code Combination meter Data link connector 3 (behind lower left side of dash) Dome fuse 7.5a Dswh Ecu-b2 fuse 7.5a Engine control module (on left front of engine compt, in protective case) Engine hood courtesy switch (on front center of engine compt, near hood latch) Eom G10 G104 (rear of left front fender) G11 G203 (behind right kick panel) Ground Head Horn Hot at all times Hot in run & start I11 Ign fuse 7.5a Igsw Imld Ind Junction connector j/c 6 (behind left side of dash) Ksw Lug Mpx+ Mpx- Mpx-b fuse 10a Mpx1 Mpx2 Mrel Passenger side junction block (behind lower right end of dash) Pnk Rxck Security ind Sh- Tail Theft deterrent ecu (behind left end of dash) Theft deterrent horn (on left side of engine compt, on strut tower) Transponder key amplifier (on steering column, near ignition) Txct Unlock warning switch
BODY COMPUTER Body Computer Wiring Diagrams for Lexus IS 300 2001 List of elements for Body Computer Wiring Diagrams for Lexus IS 300 2001: 86 A10 A11 A12 A13 A14 Acc Act+ Act- Actd Anti-theft system B10 B11 B12 B13 B14 B15 B16 B17 B18 B19 B20 Bcty Becu Body ecu (behind lower left end of dash, integral with driver side j/b) Bsub Bzr Bzr2 Computer data lines Dbkl Dclp Dcty Dfg Door fuse 20a Door locks system Door locks system door locks system Driver side j/b (behind lower left end of dash) Driver side junction block (behind lower left end of dash) Ecu-ig fuse 10a Engine controls system Exterior lights system G202 Gnd Gnd2 H10 Haz Hot always Hot at all times Hot in acc or on Hot in on or start Hot with tail relay energized I2 (dash harness, behind left side of dash) Ile Instrument cluster system Interior lights system J/c 5 (behind left end of dash) Ksw L10 Lgcy Lsr Lswp Mpx-b fuse 10a Mpx1 Mpx2 Mpx3 Obd2 Panel fuse 7.5a Passenger side j/b (behind lower right end of dash) Pclp Pcty Pml Pmul Power tops system Power windows system Prg Radio 2 fuse 10a Rcty Rda Red Rld Rlu Rrd Rru Tail Tr+ Trunk, tailgate & fuel door system Warning systems
COMPUTER DATA LINES Computer Data Lines for Lexus IS 300 2001 List of elements for Computer Data Lines for Lexus IS 300 2001: 42 (front side of intake manifold) g131 (on left side of engine compt, near engine control module) j/c j3 (on left side of engine compt, near engine control module) j/c j4 (under right front seat) g301 A/c control assembly A11 A12 A13 A18 A19 Abs & traction ecu (behind left end of dash) B10 Bat Body ecu Center airbag assembly (below center of dash, on transmission tunnel) Combination meter D/g Data link connector 1 (on left front of engine compt, forward of engine room r/b 3) Data link connector 3 (behind lower left side of dash) Driver side j/b Driver side j/b (behind lower left end of dash) Engine control module (on left front of engine compt, in protective case) Engine controls system (efi relay) G11 G131 (on side of intake manifold) G203 (behind right kick panel) Hot at all times Igniter (on left side of engine compt, on strut tower) J/c j16 (above right rear fenderwell) Mpx+ Mpx- Mpx1 Mpx2 Mpx3 Obd fuse 7.5a Obd2 Passenger side j/b (behind lower right end of dash) Power window master switch Sil Tac Theft deterrent ecu (behind left end of dash) Wfse
COOLING FAN Cooling Fan Wiring Diagram for Lexus IS 300 2001 List of elements for Cooling Fan Wiring Diagram for Lexus IS 300 2001: 40 A/c comp relay A/c condenser fan motor A/c control assembly (below center of dash, behind center console) A/c diode (behind right end of dash) A/c single pressure switch (left front of engine compt) A12 A13 A14 Acc Acmg Cds fan fuse 30a Computer data lines system Driver side j/b (behind left end of dash) Ecu-ig fuse 10a Engine control module (ecm) (left front of engine compt) Engine room r/b 1 (right rear of engine compt) Engine room r/b 3 (left side of engine compt) Fan Fan 1 relay Fan 2 relay Fan 3 relay G104 (rear of left front fender) G203 (behind right kick panel) G301 (under right front seat) Gnd H10 Hot at all times Hot in on or acc Hot in on or start J/c 10 (behind right side of dash) J/c 16 (right rear fenderwell) J/c 3 (left side of engine compt, near ecm) Mpx+ Mpx- Mpx-b fuse 10a Passenger side j/b (behind right end of dash) Radiator fan motor Radio 2 fuse 10a Rdi fan fuse 30a Water temperature switch (right side of radiator)
CRUISE CONTROL Cruise Control Wiring Diagram (1 of 2) for Lexus IS 300 2001 List of elements for Cruise Control Wiring Diagram (1 of 2) for Lexus IS 300 2001: 52 (engine harn, left front of engine compt) e4 (left front of engine compt) data link connector 1 (left side of engine compt) +b2 +bm Anti-theft system computer data lines system B11 Batt Ccs Cl+ Cl- Driver side j/b (behind lower left end of dash) E01 E02 E03 Efi fuse 25a Efi relay Engine control module (on left front of engine compt, in protective case) Engine room relay block 1 (right rear of engine compt) Eom Etcs fuse 15a G104 (rear of left front fender) G131 (front side of intake manifold) G131 (on side of intake manifold) G203 (behind right kick panel) Gauge fuse 10a Ge01 Hot at all times Hot in on or start Igsw J/c 1 J/c 2 J/c 3 (left side of engine compt) J/c 4 (left side of engine compt) Me01 Mpx1 Mpx2 Mrel Park/neutral position switch (on right side of transmission) Passenger side j/b (behind lower right end of dash) Red Shielded St1- Stop fuse 15a Stoplight switch (on brake pedal bracket) Stp Throttle control motor (on throttle body) Transmission control switch (in shift lock control ecu) Vpa Vpa2 Vta Vta2 Cruise Control Wiring Diagram (2 of 2) for Lexus IS 300 2001 List of elements for Cruise Control Wiring Diagram (2 of 2) for Lexus IS 300 2001: 34 (behind lower left side of dash) (engine harn, top left side of engine) (left side of engine compt) Accel position sensor (on center rear of engine, on throttle body) Anti-lock brakes system Anti-theft system Bat Cancel Combination meter Computer data lines system Cruise Cruise control switch Cruise ind Data link connector 3 Driver side j/b (behind lower left end of dash) E10 G131 (on side of intake manifold) G201 (lower left center of dash, forward of center floor console) G203 (behind right kick panel) G301 (under right front seat) Hot at all times Hot in on or start Ign fuse 7.5a J/c 1 J/c 16 (above right rear fenderwell) J/c 2 J/c 7 (behind upper right side of dash) Mpx-b fuse 10a Obd fuse 7.5a Passenger side j/b (behind lower right end of dash) Res/acc Set/coast Speedometer Throttle position sensor (on throttle body)
DEFOGGERS Defogger Wiring Diagram for Lexus IS 300 2001 List of elements for Defogger Wiring Diagram for Lexus IS 300 2001: 38 (rear of left front fender) g104 (under right front seat) g301 A12 A13 Alt fuse 120a Body ecu Case) Combin -ation meter Driver side junction block (behind lower left end of dash) Engine room 1 relay block (on right rear of engine compt) G202 G203 (behind right kick panel) Gauge fuse 10a H11 Hot at all times Hot in on or start J/c 11 (in left front door) J/c 16 (above right rear fender- well) J/c 5 (behind left end of dash) K12 L10 Left mirror heater Mir htr fuse 15a Mir htr relay Mpx+ Mpx- Mpx1 Mpx2 Noise filter Passanger side junction block (below lower right end of dash) R11 R12 Rear window defogger Rear window defogger switch Right mirror heater Rr def fuse 40a Rr def relay Theft deterent ecu (behind left end of dash)
ENGINE PERFORMANCE
3.0L 3.0L, Engine Performance Wiring Diagrams (1 of 5) for Lexus IS 300 2001 List of elements for 3.0L, Engine Performance Wiring Diagrams (1 of 5) for Lexus IS 300 2001: 69 (on left side of engine compt, on strut tower) fuel pump resistor +b2 +bm A/c control assembly A/c system A/t shift main switch (integral to combination switch) A12 snow Acmg Anti-theft system (engine immobilizer circuit) Batt Ccs Circuit opening relay Code Computer data lines system Cooling fans system Cruise control system Driver side j/b Ecc Efi fuse 25a Electronically controlled transmission pattern select switch Eng+ Eng- Engine control module (ecm) (on left front of engine compt, in protective case) Engine room r/b 1 (on right rear of engine compt) Engine room r/b 3 (on left side of engine compt) Eom Etcs fuse 15a Fan Fpr Fuel pump & sender (beneath left side of vehicle) Fuel pump relay G104 (rear of left front fender) G203 (behind right kick panel) G414 Hot at all times Hot in on or start Htl2 Htr2 Ign fuse 7.5a Igsw Imld J/c 15 (behind left rear fenderwell) Ksw Mpx- Mpx1 Mpx2 Mrel Neo Oxl2 Oxr2 Passenger side j/b (behind lower right end of dash) Pnk Pre Ptnk Pwr Rxck Sftd Sftu Sil Snow St1- Sta Stp Tam Tbp Trc+ Trc- Txct Wfse 3.0L, Engine Performance Wiring Diagrams (2 of 5) for Lexus IS 300 2001 List of elements for 3.0L, Engine Performance Wiring Diagrams (2 of 5) for Lexus IS 300 2001: 38 (behind left end of dash) abs & traction ecu (behind lower lower right end of dash) passenger side j/b (on left side of engine compt, near ecm) j/c 3 A18 A19 B11 Combination meter Data link connector 1 (on left front of engine compt, near engine room r/b 3) Data link connector 3 (behind lower left side of dash) Driver side j/b (behind lower left end of dash) E4 (engine harn, in ecu box) Efi relay Eng+ Eng- Engine oil level sensor (on lower left front of engine) Engine oil pressure switch (on left front of engine) Engine room r/b 2 (on right rear of engine compt) G131 (on side of intake manifold) G203 (behind right kick panel) Hot at all times Hot in on or start Hot in start J/c 16 (above right rear fenderwell) Level Neo Park/neutral position switch (on right side of transmission) Passenger side j/b (behind lower right end of dash) Pnk Sil Sp1 Starter fuse 7.5a Stop fuse 15a Stoplight switch (above brake pedal, on bracket) Temp Trc+ Trc- Vsv (pressure switching valve) (beneath center rear of vehicle) Wfse 3.0L, Engine Performance Wiring Diagrams (3 of 5) for Lexus IS 300 2001 List of elements for 3.0L, Engine Performance Wiring Diagrams (3 of 5) for Lexus IS 300 2001: 21 (engine harn, left side of engine) (on left side of engine compt, near ecm) j/c 1, j/c 2 (on right side of transmission) a/t indicator light switch (integral to park/neutral position switch) Braided Driver side j/b (behind lower left end of dash) G131 (front side of intake manifold) Gauge fuse 10a Heated oxygen sensor (bank 1 sensor 1) (on right side of engine, on exhaust system) Heated oxygen sensor (bank 1 sensor 2) (on right side of engine, on exhaust system) Heated oxygen sensor (bank 2 sensor 1) (on right side of engine, on exhaust system) Heated oxygen sensor (bank 2 sensor 2) (beneath vehicle, on exhaust system) Hot in on or start J/c 1, j/c 2 (near ecm) J/c 7 (behind upper right side of dash) Mt3 Nssd Pnk Transmission control switch (d-4) (integral to shift lock control ecu) Transmission control switch (l-2) Vsv (acis) (on left side of engine) Vsv (evap) (on top rear of engine) 3.0L, Engine Performance Wiring Diagrams (4 of 5) for Lexus IS 300 2001 List of elements for 3.0L, Engine Performance Wiring Diagrams (4 of 5) for Lexus IS 300 2001: 38 (beneath center rear of vehicle) vapor pressure sensor (center rear of engine, on throttle body) accel position sensor (engine harn, left side of engine) (on left front of engine) engine coolant temperature sensor (on left front of engine) power steering oil pressure sensor (on left side of engine compt, near ecm) j/c 1, j/c 2 (on right front of engine) vsv (canister closed valve) (on right side of engine compt, behind air box) mass airflow meter (on throttle body) throttle position sensor Braided Camshaft timing oil control valve (on left front of cyl head) E10 E10 (engine harn, left side of engine) E8 (engine harn, left side of engine) Fuel inj 1 Fuel inj 2 Fuel inj 3 Fuel inj 4 Fuel inj 5 Fuel inj 6 G131 (front side of intake manifold) G131 (on side of intake manifold) Gnd Igf Igniter (on left side of engine compt, on strut tower) Ignition coil 1 Ignition coil 2 Ignition coil 3 In1 In2 In3 Noise filter (on left side of engine) Pnk Ptnk Red Tac Vcc Vout 3.0L, Engine Performance Wiring Diagrams (5 of 5) for Lexus IS 300 2001 List of elements for 3.0L, Engine Performance Wiring Diagrams (5 of 5) for Lexus IS 300 2001: 63 (engine harn, left side of engine) (on left rear of transmission) vehicle speed sensor (on left side of transmission) o/d direct clutch speed sensor A/c system Acis Braided Camshaft position sensor (on left rear of cyl head) Ccv Charging system Cl+ Cl- Crankshaft position sensor (on right side of engine) E01 E02 E03 E11 Electronically controlled transmission solenoid (on left side of transmission) Engine control module (ecm) (on left front of engine compt, in protective case) Evg G131 (front side of intake manifold) Ge01 Htl Htr Igf Igt Igt2 Igt3 J/c 4 (on left side of engine compt, near ecm) Knk1 Knk2 Knock sensor 1 (on left front of engine block) Knock sensor 2 (on left rear of engine block) Lck1 Me01 Mol Mops Nco+ Nco- Ne- Ocv+ Ocv- Oil Oxl1 Oxr1 Pnk Prg Psp Red Sln+ Sln- Slt+ Slt- Slu+ Slu- Sp2+ Sp2- Tha Throttle control motor (on throttle body) Thw Vpa Vpa2 Vta Vta2
EXTERIOR LIGHTS Back-up Lamps Wiring Diagram for Lexus IS 300 2001 List of elements for Back-up Lamps Wiring Diagram for Lexus IS 300 2001: 11 B/u Back-up light switch (integral to park/ neutral position switch) Driver side j/b (behind lower left end of dash) G414 Gauge fuse 10a Hot in on or start I11 Junction connector j/c 15 (on left side of luggage compt) Junction connector j1, j2 (left side of eng compt) Left rear combination light Right rear combination light Exterior Lamps Wiring Diagram (1 of 2) for Lexus IS 300 2001 List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Lexus IS 300 2001: 45 Alt fusible link 120a Auto C10 Combination meter Combination switch Driver side j/b (behind lower left end of dash) Engine room j/b 1 (on right rear of engine compartment) G414 Gauge fuse 10a H13 Head High mounted stop light Hot at all times Hot in on or start I12 Junction connector (above left rear fender- well) Junction connector (above left rear fenderwell) Junction connector (left side of luggage compt) Junction connector 3 (on left side of eng compt, near engine control module) Junction connector j/c 15 (on left side of lugg compt, behind left fenderwell) Junction connector j/c 15 (on left side of luggage compt, behind left fenderwell) Junction connector j/c 5 (behind left side of dash) K12 Left Left rear combination light License plate lights Light failure sensor (on side of luggage compartment) Noise filter (above left rear fenderwell) Off Passenger side j/b (behind lower right side of dash) Rear light warning light Red Right Right rear combination light Side marker Stop fuse 15a Stop light Stoplight switch (above brake pedal, on bracket) Tail Tail fuse 10a Tail light Taillight relay Theft deterrent ecu (behind left end of dash) Turn signal light Turn signal light Exterior Lamps Wiring Diagram (2 of 2) for Lexus IS 300 2001 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Lexus IS 300 2001: 33 A10 A12 A13 Body ecu (behind lower left side of dash, integral with driver side j/b) Combination meter Driver side j/b (behind lower left end of dash) Engine room j/b 1 (on right rear of engine compartment) Flasher relay G104 (rear of left front fender) G203 (behind right kick panel) Gauge fuse 10a H11 Haz Hazard switch (a/c control assembly) Hot at all times Hot in on 0r start I10 Junction connector j/c 5 (behind left side of dash) Left Left front parking light Left front side marker light Left front side turn light Left front turn light Left turn signal ind Passenger side j/b (behind lower right side of dash) Right Right front parking light Right front side marker light Right front side turn light Right front turn light Right turn signal ind Turn signal switch (combination switch) Turn-haz fuse 15a
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2001 List of elements for Ground Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2001: 48 B3 (body harn, left side of trunk) B4 (body harn, left side of trunk) Body ecu Center air bag sensor assembly Cigarette lighter Combination meter Combination switch Driver side j/b (behind lower left end of dash) Driver's power seat control switch Driver's seat heater Flash relay Fuel pump G308 (base of left "b" pillar) G414 Headlight beam level control ecu High mounted stoplight I2 (dash harn, behind left sie of dash) Junction connector j/c 11 (in left front door) Junction connector j/c 15 (on left side of luggage compartment, behind left fenderwell) L10 Left buckle switch Left front door key lock & unlock switch & door lock detection switch Left license plate light Left rear combination light Left rear door lock detection switch Left rear power window control switch Left remote control mirror Light failure sensor Luggage compartment door key unlock switch Luggage compartment door opener relay Mir htr relay Noise filter (def cds) Noise filter (stop- light) Passenger side j/b (behind lower right end of dash) Power window master switch Remote control mirror switch Rheostat Right license plate light Right rear combination light T10 Telephone transceiver & speaker relay Theft deterrent ecu To j/c 5 (diagram 2 of 3) Transponder key amplifier Unlock warning switch W/ power seat W/o power seat Wireless door lock control receiver Ground Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2001 List of elements for Ground Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2001: 55 (from driver side j/b) diagram 1 of 3) A/c dual pressure switch A/c magnetic clutch & lock sensor A/c single pressure switch A17 A18 Abs & traction ecu Blower motor controller Brake fluid level warning switch Combination meter Combination switch Data link connector (dlc) 1 Data link connector (dlc) 3 E9 (eng harn, left side of engine) Engine control module Engine hood courtesy switch Engine oil level sensor Engine room r/b 3 (left side of eng compt) Eo1 Eo2 Eo3 Eom Fan relay Front wiper motor G104 (rear of left front fender) G131 (front side of intake manifold) G131 (on side of intake manifold) G201 (behind upper right end of dash) G201 (lower left center of dash, forward of center floor console) G201 (lower right center of dash, forward of center floor console) G202 Gnd1 Gnd2 Gnd3 Headlight cleaner control relay Headlight cleaner motor Heated oxygen sensor (bank 1, sensor 1) Heated oxygen sensor (bank 1, sensor 2) Heated oxygen sensor (bank 2, sensor 1) Heated oxygen sensor (bank 2, sensor 2) Igniter J2 j/c 1, j/c 2 (on left side of eng compt) Junction connector j/c 4 (on left side of eng compt) Junction connector j/c 5 (behind left end of dash) Junction connector j/c 7 (behind upper right side of dash) Left front foglight Left front parking light Left front side marker light Left front side turn signal light Left front turn signal light Left headlight control ecu Meo1 Radiator fan motor Radio & player Stereo component amplifier Ground Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2001 List of elements for Ground Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2001: 52 (w/o moon roof) A/c control assembly Abs & traction actuator B2 (body harn, front of roof) B6 (body harn, under right front seat) Buckle switch (right) & seat belt warning occupant detection sensor Center air bag sensor assembly Data link connector (dlc) 3 Daytime running light relay (main) Daytime running light relay 3 Daytime running light relay 4 Daytime running light resistor Driver's seat heater switch Efi relay Electronically controlled transmission pattern select switch Engine room r/b 1 (right rear of eng compt) Engine room r/b 2 (right rear of eng compt) Front passenger's power seat control switch Front passenger's seat heater Front passenger's seat heater switch G203 (behind right kick panel) G301 (under right front seat) G908 (center front of roof) Glove box light I5 (dash harn, behind right end of dash) Junction connector j/c 16 (above right rear fenderwell) Junction connector j/c 7 (behind upper right side of dash) Left vanity light Moon roof control ecu Moon roof control switch Passenger side j/b (behind lower right end of dash) Personal light Power outlet Right door lock control switch Right front door lock detection switch Right front foglight Right front parking light Right front power window control switch Right front side marker light Right front side turn signal light Right front turn signal light Right headlight control ecu Right rear door lock detection switch Right rear power window control switch Right remote control mirror Right vanity light Shift lock control ecu Starter relay Trac off switch W/ power seat W/o power seat Water temperature switch
HEADLIGHTS Headlamps Wiring Diagram (1 of 2) for Lexus IS 300 2001 List of elements for Headlamps Wiring Diagram (1 of 2) for Lexus IS 300 2001: 55 +b1 +b2 Acc Anti-theft system Anti-theft system (door switches) Auto Automatic light control sensor (top left side of dash) B10 Becu Body ecu (behind lower left end of dash) Bsub Cltb Clte Clts Computer data lines system Dcty Dimmer switch Dome fuse 7.5a Door fuse 20a Driver side junction block (behind lower left end of dash) Ecu-b2 fuse 7.5a Exterior lights system Flash Fog lights Foglight switch G202 G414 Head Headlight switch High Hot at all times Hot in acc or run J/c 12 (above left rear fender- well) J/c 15 (on left side of luggage compartment) J/c 5 (behind left end of dash) Lgcy Low Lsr Lswp Mpx-b fuse 10a Mpx1 Mpx2 Mpx3 Obd2 Off Passenger side junction block (behind lower right end of dash) Pcty Prg Radio 2 fuse 10a Rcty Rda Red Tail Theft deterrent ecu (behind left side of dash) Wireless door lock control receiver (below center of rear window) Headlamps Wiring Diagram (2 of 2) for Lexus IS 300 2001 List of elements for Headlamps Wiring Diagram (2 of 2) for Lexus IS 300 2001: 43 (behind right kick panel) (on right rear of engine compartment) engine room relay block 1 C10 Chg- Combination meter Daytime running light relay 3 & 4 (at left front corner of engine compt) Daytime running light resistor (on right side of eng compt) Dimmer relay Driver side junction block (behind lower left end of dash) Drl 1 fuse 7.5a Drl 2 fuse 30a E1 (engine harness, right front of eng compt) Ecu-b2 fuse 7.5a Ecu-ig fuse 10a Engine room relay block 1 (on right rear of engine compartment) Engine room relay block 2 (on right rear of engine compartment) Engine room relay block 3 (on left side of engine compartment) Fr fog fuse 15a Fr fog relay G104 (rear of left front fender) G203 G203 (behind right kick panel) H-lp l lwr fuse 15a H-lp l upr fuse 10a H-lp r lwr fuse 15a H-lp r upr fuse 10a Head lp relay Headlight control ecu (left low beam) Headlight control ecu (right low beam) Hi beam indic Hot at all times Hot in run or start J/c 6 (behind left side of dash) J/c 7 (upper right side of dash) Left fog light Left high beam headlight Main daytime running light relay (behind left end of dash) Main fuse 40a Parking brake switch (at base of parking lever) Passenger side junction block (behind lower right end of dash) Red Right fog light Right high beam headlight Headlamps Leveling Wiring Diagram for Lexus IS 300 2001 List of elements for Headlamps Leveling Wiring Diagram for Lexus IS 300 2001: 50 A11 Anti-lock brakes system Auto C10 Combination meter Driver side j/b (behind lower left end of dash) Ecu-ig fuse 10a Engine room relay block 1 (on right rear of engine compt) Flash G202 Gauge fuse 10a H10 Head Head lp relay Headlight beam level cntrl warning light Headlight beam level control ecu (behind left side of dash) Headlight switch High Hot at all times Hot in run or start I10 J/c 5 (behind left end of dash) J/c 6 (behind left side of dash) Left front height control sensor (left front of eng compt) Left headlight beam level control actuator Left rear height control sensor (under left rear of vehicle, attached to suspension control arm) Lh+ Lh- Lhe Lht Low Main fuse 40a Off Passenger side j/b (behind lower right end of dash) Red Rh+ Rh- Rhe Rht Right headlight beam level control actuator Sbf Sbr Sgf Sgr Shfl Shrl Spdr Tail Theft deterrent ecu (behind left side of dash) Wng
HORN Horn Wiring Diagram for Lexus IS 300 2001 List of elements for Horn Wiring Diagram for Lexus IS 300 2001: 12 Engine room r/b 1 (on right rear of engine compt) Engine room r/b 2 (on right rear of engine compt) Horn Horn switch (combination switch) Horn fuse 10a Horn relay Hot at all times I11 Left horn Passenger side j/b (behind lower right end of dash) Right horn Theft deterrent ecu (behind left end of dash)
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram for Lexus IS 300 2001 List of elements for Instrument Cluster Wiring Diagram for Lexus IS 300 2001: 84 (lower left center of dash, forward of center console) (rear of left front fender) A/c control assembly A11 A12 A13 A15 A16 A17 A18 A19 A20 A21 A22 Abs Abs & traction ecu (behind left end of dash) Anti-lock brakes system Anti-theft system Beam Beam level Body ecu Brake Brake fluid level warning switch (in brake fluid reservoir) Buzzer C10 Charge Combination meter Computer data lines system Cruise Door Driver side j/b (behind lower left end of dash) Econo Ect pwr Engine control module (left front of engine compt) Engine oil level & oil temp sensor (lower left front of engine) Engine oil pressure switch (left front of engine) Exterior lights system Fuel Fuel sender (beneath left side of vehicle, forward of left fenderwell) Fuel sender (sub) (beneath right side of vehicle, forward of right fenderwell) G104 G104 (rear of left front fender) G201 G202 (behind left end of dash) Gauge fuse 10a Headlights system Hot at all times Hot in on or start Hot with taillight relay energized Igniter (left side of engine compt, on strut tower) Illumination Interior lights system J/b 5 J/c 6 (behind left side of dash) Lbl+ Lbl- Lcd Malfunction indicator lamp Mpx+ Mpx- Mpx-b fuse 10a Mpx1 Mpx2 Oil level Oil pressure Panel fuse 7.5 Parking brake switch (base of parking brake lever) Passenger side j/b (behind lower right end of dash) Pkb Rear lights Red Seat belt Slip Snow Sp1 Speedometer Srs Srs-b fuse 7.5a Tachometer Trac off Turn lh Turn rh Volt Water temp
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram (1 of 2) for Lexus IS 300 2001 List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Lexus IS 300 2001: 61 (behind lower left side of dash) data link connector 3 Acc B10 Becu Body ecu (behind lower left end of dash) Bsub Dclp Dcty Dome fuse 7.5a Door Door fuse 20a Driver side j/b (behind lower left end of dash) Ecu-ig fuse 10a G11 G131 (on side of intake manifold) G202 G203 (behind right kick panel) G301 (under right front seat) Gauge fuse 10a Gnd Gnd2 Hot at all times Hot in on or acc Hot in on or start Ignition key cylinder light Ile Interior light J/c 15 (left side of luggage compt) J/c 16 (above right rear fender- well) J/c 16 (above right rear fenderwell) J/c 5 (behind left end of dash) J/c 7 (behind upper right side of dash) L10 Left front door courtesy light Left front door courtesy switch Left rear door lock detection switch Lgcy Lsr Lswp Mpx-b fuse 10a Mpx1 Mpx2 Mpx3 Obd2 Off Passenger side j/b (behind lower right end of dash) Pclp Pcty Pml Pmul Prg Radio 2 fuse 10a Rcty Rda Red Right front door courtesy light Right front door courtesy switch Right front door lock control switch Right front door lock detection switch Right rear door lock detection switch Srs-b fuse 10a Courtesy Lamps Wiring Diagram (2 of 2) for Lexus IS 300 2001 List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Lexus IS 300 2001: 30 A/c control assembly (behind center of dash) A12 A13 B1 (body harn, at center headliner) Combination meter Door Engine control module (left front of engine compt) G201 (forward of center console) G202 G908 (center front of roof) J/c 11 (in left front door) J/c 12 (above left rear fenderwell) J/c 15 (left side of luggage compt) Left front door lock/ unlock switch & lock detection switch Left rear door courtesy switch Left vanity light Lock Lock decect Luggage compartment door courtesy switch Luggage compartment light Luggage compartment light diode (on rear speaker shelf) Personal light (w/ moon roof) (part of moon roof control switch) Personal light (w/o moon roof) Power window master switch Red Right rear door courtesy switch Right vanity light Theft feterrent ecu (behind left end of dash) Unlk Wireless door lock control receiver Instrument Illumination Wiring Diagram for Lexus IS 300 2001 List of elements for Instrument Illumination Wiring Diagram for Lexus IS 300 2001: 31 A/c control assembly Ashtray illumi- nation Cigarette lighter illumi- nation Combi- nation meter Driver side j/b (behind lower left end of dash) Electronic controlled transmission pattern select switch G202 G203 (behind right kick panel) Glove box light Head Headlight cleaner switch Hot at all times I1 (dash harn, behind left side of dash) Ill- J/c 5 (behind left end of dash) J/c 7 (behind upper right side of dash) J/c 8 (behind upper right side of dash) J/c 9 (behind upper right side of dash) Light control switch (part of combination switch) Off Panel fuse 7.5a Radio & player Red Rheostat (behind left side of dash) Seat heater switch (driver) Seat heater switch (front passenger) Tail Tail relay Theft deterrent ecu (behind left end of dash) Traction "off" switch Transmission control switch (a/t position illumination)
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2001 List of elements for Power Distribution Wiring Diagram (1 of 3) for Lexus IS 300 2001: 73 (behind lower right end of dash) passenger side junction block (on right rear of engine compartment) engine room relay block 1 Abs fuse 60a Air conditioning & instrument cluster systems Alt fuse 120a Alt-s fuse 7.5a Am2 fuse 20a Anti-lock brakes system Anti-theft system Anti-theft system & horns system Anti-theft, body computer, cruise control, door locks, engine controls, exterior lights, headlights, interior lights, instrument cluster, power windows, starting/ charging, transmissions & warning systems Anti-theft, body computer, door locks, exterior lights, garage door opener, headlights & interior lights systems Anti-theft, body computer, exterior lights & headlight systems Anti-theft, exterior lights & headlights systems Battery Body computer & interior lights systems Body computer system & power windows system Cds fan fuse 30a Cellular phones system Cooling fans system Cruise control system, engine controls system & transmission systems D rr p/w fuse 20a Dimmer relay Dome fuse 7.5a Drl 1 fuse 7.5a Drl 2 fuse 30a Ecu-b1 fuse 20a Ecu-b2 fuse 7.5a Efi fuse 25a Engine controls, cruise control & transmission systems Engine controls, transmission, cruise control systems Engine room relay block 2 (on right rear of engine compartment) Engine room relay block 3 (on left side of engine compartment) Etcs fuse 15a Exterior lights system Fr fog fuse 15a Fr fog relay From a engine room relay block 1 (diagram 1 of 3) H-lp cln fuse 30a Head- light relay Headlights system Heater fuse 40a Heater relay Horn fuse 10a Left lower head fuse 15a Left upper headlmp fuse 15a Main fuse 40a Mir heater relay Mir htr fuse 15a Mpx-b fuse 10a Obd fuse 7.5a P fr p/w fuse 20a P p/ seat fuse 30a P rr p/w fuse 20a P/w relay Passenger side junction block (behind lower right end of dash) Radio 1 fuse 20a Rdi fan fuse 30a Red Right lower head fuse 15a Right upper headlmp fuse 15a Seats system Sound systems Srs-b fuse 7.5a Starter Starter relay Starting/ charging system Tel fuse 7.5a To driver side junction block (diagram 2 of 3) To engine room relay block 1 (diagram 1 of 3) To ignition switch (diagram 2 of 3) Turn/ hazard fuse 15a Wiper/ washer system Power Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2001 List of elements for Power Distribution Wiring Diagram (2 of 3) for Lexus IS 300 2001: 52 (behind lower left end of dash) driver side junction block A/c fuse 10a Acc Air conditioning system Air conditioning, instrument cluster, shift interlock & sound systems Am 1 fuse 40a Anti-lock brakes, cruise control, engine controls, exterior lights, shift interlock & transmission systems B11 B12 Body computer system & interior lights systems Body ecu Bsub D fr p/w fuse 20a D p/seat fuse 30a Door fuse 20a Exterior lights system From am2 fuse, engine room relay block 1 (diagram 1 of 3) From engine room relay block 1 (diagram 1 of 3) G11 H12 H13 I13 Ignition switch K12 Lock Mirror system Panel fuse 7.5a Power tops system Power windows system Radio 2 fuse 10a Red Rr def fuse 40a Rr def relay Run S/roof fuse 30a Seat htr fuse 15a Seat systems Seats system Srs acc fuse 10a Start Starter fuse 7.5a Starting/ charging, engine controls & transmission systems Stop fuse 15a Tail fuse 10a Tail relay To driver side junction block (cig fuse, 15a) (diagram 3 of 3) To driver side junction block (gauge fuse, 10a) (diagram 3 of 3) To passenger side junction block (ign fuse, 7.5a) (diagram 3 of 3) Trunk, tailgate & fuel door systems Washer fuse 15a Wiper fuse 25a Wiper/ washer systems Power Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2001 List of elements for Power Distribution Wiring Diagram (3 of 3) for Lexus IS 300 2001: 37 (behind left side of dash) i3 (behind lower left end of dash) driver side junction block (behind right kick panel) g203 (under right front seat) g301 A11 Air conditioning, cooling fans, headlights, shift interlock & warning systems Anti-lock brakes system Anti-lock brakes, cruise control, engine controls, exterior lights, headlights, instrument cluster, interior lights, starting/ charging, transmission & warning systems Anti-theft, exterior lights & headlights systems Body ecu Cellular telephone & exterior lights systems Cig fuse 15a Cigar- ette lighter Cruise control system Cruise control, engine controls & transmission systems Cruise control, exterior lights, shift interlock, starting/charging & transmission systems Defogger & power window systems Ecu-ig fuse 10a Engine controls system Flasher relay From driver side junction block (diagram 2 of 3) From driver side junction block (radio 2 fuse, 10a) (diagram 2 of 3) From e driver side junction block (seat htr fuse, 15a) (diagram 2 of 3) G202 Gauge fuse 10a H11 H13 Headlights system Ign fuse 7.5a J/c 16 (above right rear fenderwell) Junction connector j/c 5 (behind left end of dash) Passenger side junction block (behind lower right end of dash) Pnk Power outlet Power tops system Power windows systems Rr def relay
POWER DOOR LOCKS Power Door Lock Wiring Diagram (1 of 3) for Lexus IS 300 2001 List of elements for Power Door Lock Wiring Diagram (1 of 3) for Lexus IS 300 2001: 59 (below center of rear window, on speaker shelf) wireless door lock control receiver A10 Acc Act+ Act- Actd B10 B14 B15 B16 B19 B20 Becu Body ecu (behind lower left end of dash, integral with driver side junction block) Bsub Bzr Bzr2 Dcty Door fuse 20a Driver side junction block (behind lower left end of dash) Ecu-ig fuse 10a Flasher relay G202 Gnd2 Ground H10 Haz Hot at all times Hot in acc or run Hot in run or start I2 (dash harn, behind left side of dash) Junction conenctor j/c 5 (behind left end of dash) Junction connector j/c 12 (above left rear fenderwell) Junction connector j/c 16 (above right rear fenderwell) Junction connector j/c 6 (behind left side of dash) Keyless buzzer (near top of left front wheelwell, inside fender) Ksw L10 Left front door courtesy switch Left rear door courtesy switch Left rear door lock motor & door lock detection switch Lgcy Lsr Lswp Mpx1 Mpx2 Mpx3 Obd2 Pcty Pml Pmul Prg Radio 2 fuse 10a Rcty Rda Right front door courtesy switch Right rear door courtesy switch Tr+ Unlock warning switch Power Door Lock Wiring Diagram (2 of 3) for Lexus IS 300 2001 List of elements for Power Door Lock Wiring Diagram (2 of 3) for Lexus IS 300 2001: 21 (above left rear fenderwell) junction connector j/c 12 (behind upper right side of dash) junction connector j/c 7 (in left front door) junction connector j/c 11 (on left side of luggage compt, near fuel filler door) luggage compartment door opener relay Bdm Driver side junction block (behind lower left end of dash) G301 (under right front seat) G414 Junction connector j/c 15 (on left side of luggage compt, behind left fenderwell) Junction connector j/c 16 (above right rear fenderwell) Kul Left front door lock motor, door key lock & unlock switch & door lock detection switch Lock Lock detect Lswd Passenger side junction block (behind lower right end of dash) Power window master switch Right door lock control switch Right front door lock motor & door lock detection switch Right rear door lock motor & door lock detection switch Unlk Power Door Lock Wiring Diagram (3 of 3) for Lexus IS 300 2001 List of elements for Power Door Lock Wiring Diagram (3 of 3) for Lexus IS 300 2001: 24 (on side of intake manifold) g131 A/c control assembly A12 A13 A20 A21 C27 C28 Combination meter Data link connector 3 (behind lower left side of dash) Dome fuse 7.5a Engine control module (on left front of engine compt, in protective case) G11 G203 (behind right kick panel) Hot at all times Junction connector j/c 12 (above left rear fenderwell) Luggage compt door courtesy switch & opener motor Mpx+ Mpx- Mpx-b fuse 10a Mpx1 Mpx2 Passenger side junction block (behind lower right end of dash) Theft deterrent ecu (behind left end of dash)
POWER MIRRORS Power Mirrors Wiring Diagram for Lexus IS 300 2001 List of elements for Power Mirrors Wiring Diagram for Lexus IS 300 2001: 16 B12 Down Driver side j/b (behind lower left end of dash) G202 Hot in on or acc J/c 11 (in left front door) J/c 5 (behind left end of dash) L10 Left Left remote control mirror Operation switches Radio 2 fuse 10a Remote control mirror switch Right Right remote control mirror Select switches
POWER SEATS Heated Seats Wiring Diagram for Lexus IS 300 2001 List of elements for Heated Seats Wiring Diagram for Lexus IS 300 2001: 13 Driver side j/b (behind lower left end of dash) Driver's seat heater Driver's seat heater switch G203 (behind right kick panel) G301 (under right front seat) G308 (base of left "b" pillar) Hot in on or start Interior lights sysytem J/c 7 (behind upper right side of dash) Passenger side j/b (behind lower right end of dash) Passenger's seat heater Passenger's seat heater switch Seat htr fuse 15a Power Seats Wiring Diagram for Lexus IS 300 2001 List of elements for Power Seats Wiring Diagram for Lexus IS 300 2001: 20 D p/seat fuse 30a Down Driver side j/b (behind lower left end of dash) Driver's power seat control switch Front Front vertical control motor (under seat) G301 (under right front seat) G308 (base of left "b" pillar) Hot at all times I13 P p/seat fuse 30a Passenger side j/b (behind lower right end of dash) Passenger's power seat control switch Rear Rear vertical control motor (under seat) Reclining Reclining control motor (under seat) Slide Slide control motor (under seat) Vertical
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagrams for Lexus IS 300 2001 List of elements for Power Top/Sunroof Wiring Diagrams for Lexus IS 300 2001: 23 (center front of roof) (on front center of roof) moon roof control ecu Body ecu (behind lower left end of dash) Close Cls Dcty Down Driver side junction block (behind lower left end of dash) Dwn Ecu-ig fuse 10a G908 Gnd Hot at all times Hot in run or start Left front door courtesy switch Ls1 Ls2 Moon roof control switch Open Opn Red S/roof fuse 10a Solid state
POWER WINDOWS Power Window Wiring Diagram for Lexus IS 300 2001 List of elements for Power Window Wiring Diagram for Lexus IS 300 2001: 63 (behind lower left end of dash) driver side j/b (behind right kick panel) g203 (under right front seat) g301 Acc B10 B11 Bcty Bdm Becu Body ecu (behind lower left end of dash) Bsub Computer data lines system D fr p/w fuse 20a D rr p/w fuse 20a Dcty Door fuse 20a Down Driver side j/b (behind lower left end of dash) Ecu-ig fuse 10a G202 G414 Gauge fuse 10a Gnd Gnd2 H11 Hot at all times Hot in acc or run Hot in run or start J/c 16 (above right rear fender- well) Junction connector j/c 15 (on left side of luggage compt, behind left fenderwell) Junction connector j/c 5 (behind left side of dash) L10 Left front door courtesy switch Left front power window motor Left rear power window control switch Left rear power window motor Limit sw Lmt Mpx-b fuse 10a Mpx1 Mpx2 Mpx3 Obd2 P fr p/w fuse 20a P rr p/w fuse 20a P/w relay Passenger side j/b (behind lower right end of dash) Pls Power window master switch Pulse sensor Pwl Pwr Radio 2 fuse 10a Red Right front power window control switch Right rear power window control switch Right rear power window motor Rigiht front power window motor Rld Rlu Rrd Rru Sgnd
RADIO Radio Wiring Diagrams for Lexus IS 300 2001 List of elements for Radio Wiring Diagrams for Lexus IS 300 2001: 51 Acc Amp Ant Antenna amplifier (behind center of dash) B12 Cdl+ Cdl- Cdr+ Cdr- Driver side j/b (behind lower left side of dash) Engine room r/b 1 (on right rear of engine compt) Fl+ Fl- Fr+ Fr- G201 (lower right center of dash, forward of center floor console) Gnd Hot at all times Hot in acc or on J/c 10 (behind upper upper right side of dash) Left front door speaker Left rear speaker & woofer Left tweeter Mute Nca Passenger side j/b (behind lower right end if dash) Pnk Radio & player Radio fuse 1 20a Rear speaker Red Right front door speaker Right rear speaker & woofer Right tweeter Rli+ Rli- Rlo+ Rlo- Rr+ Sgnd Stereo component amplifier (behind right end of dash) T10 T11 Telephone transceiver & speaker relay (left side of luggage compt, near fuel filler door) Tx+ Tx- Wfl+ Wfl- Wfr+ Wfr- Woofer
SHIFT INTERLOCKS Shift Interlock Wiring Diagram for Lexus IS 300 2001 List of elements for Shift Interlock Wiring Diagram for Lexus IS 300 2001: 37 (above driver (behind lower left end of dash) 10a 15a Acc Driver side j/b Driver side j/b (behind lower left end of dash) Ecu-ig fuse Engine control module (left front of engine compartment) G202 (behind left end of dash) G203 (behind right kick panel) Gauge fuse H10 Hot at all times Hot in acc or on Hot in on or start I13 J/c 1, j/c 2 (left side of engine compt) J/c 10 (behind upper right side of dash) J/c 5 J/c 7 (behind upper right side of dash) Key interlock solenoid Kls+ Mt3 Nssd Park/neutral postion sw (right side of trans) Passenger side j/b (behind lower right end of dash) Radio 2 fuse Shift lock control switch Shift lock ecu (under center console, beside shift lever) Shift lock solenoid Side j/b) Sls+ Sls- Stop fuse Stoplight switch Stp
STARTING/CHARGING Charging Wiring Diagram for Lexus IS 300 2001 List of elements for Charging Wiring Diagram for Lexus IS 300 2001: 25 A/c control assembly A12 A13 Alt fuse 120a Alt-s fuse 7.5a Battery Charge Combination meter Computer data lines system Driver side j/b (behind lower left end of dash) Engine control module (on left front of engine compt, in protective case) Engine room r/b 1 (on right rear of engine compt) G201 (lower left center of dash, forward of center floor console) Gauge fuse 10a Generator Hot at all times Hot in on or start J/c 1 & j/c 2 (left side of engine compt, near ecm) Mpx+ Mpx- Mpx-b fuse 10a Mpx1 Mpx2 Passenger side j/b (behind lower right end of dash) Theft deterrent ecu (behind left end of dash) Starting Wiring Diagram for Lexus IS 300 2001 List of elements for Starting Wiring Diagram for Lexus IS 300 2001: 17 Acc Am2 Am2 fuse 20a Battery Driver side j/b (behind lower left end of dash) Engine room r/b 1 (on right rear of engine compartment) G200 (behind right kick panel) Ignition switch Lock Main fuse 40a Nca Park/neutral position switch (on right side of transmission) St2 Start Starter Starter fuse 7.5a Starter relay
SUPPLEMENTAL RESTRAINTS Supplemental Restraint Wiring Diagram for Lexus IS 300 2001 List of elements for Supplemental Restraint Wiring Diagram for Lexus IS 300 2001: 60 (at base of left "b" pillar) left side air bag sensor (left front floor panel) g300 (right front floor panel) g301 +sl +sr -sl -sr A11 Acc Air bag squib (front passenger's air bag assembly) Air bag squib (steering wheel pad) Center air bag sensor assembly (below center of dash, on transmission tunnel) Combination meter Data link connector 1 (partial) (on left front of engine compartment, forward of engine room 3 r/b) Data link connector 3 (partial) (behind lower left side of dash) Driver side j/b (behind lower left end of dash) Esl Esr Fsl Fsr G202 Hot at all times Hot in acc or on Hot in on or start Ig2 Ign fuse 7.5a J/c 13 (above left rear fenderwell) J/c 16 (above right rear fender- well) J/c 3 (on left side of engine compartment, near engine control module) J/c 5 (behind left end of dash, above driver side j/b) Lbe+ Left buckle switch (inside left front seat belt buckle) Left front air bag sensor (on left side of radiator support) Left pretensioner Left side air bag squib Passenger side j/b (behind lower right end of dash) Pl+ Pl- Pnk Pr+ Pr- Rbe+ Right buckle switch & seat belt warning occupant detection sensor (inside of right front seat belt buckle) Right front air bag sensor (on right side of radiator support) Right pretensioner Right side air bag sensor (at base of right "b" pillar) Right side air bag squib Sfl+ Sfl- Sfr+ Sfr- Sil Spiral cable Srs warning indicator Srs- acc fuse 10a Srs-b fuse 7.5a Ssl+ Ssr+ Vupl Vupr
TRANSMISSION A/T Wiring Diagram (1 of 2) for Lexus IS 300 2001 List of elements for A/T Wiring Diagram (1 of 2) for Lexus IS 300 2001: 49 (engine harn, left front of engine compt) +b2 +bm A/c control assembly A/t shift main switch (integral to combination switch) B11 Batt Computer data lines system Data link connector 1 (left front of engine compt) Driver side j/b (behind lower left end of dash) E10 (engine harn, top left side of engine) Ea (front side of intake manifold) Ec (rear of left front fender) Efi fuse 25a Efi relay Electronically controlled transmission pattern select switch Engine control module (ecm) (left front of engine compt, in protective case) Engine controls system Engine coolant temperature sensor (on left front of engine) Engine room r/b 1 (on right rear of engine compt) Engine room r/b 2 (on right rear of engine compt) Eom Etcs fuse 15a Evg Hot at all times Hot in run or start Ign fuse 7.5a Igsw Ih (behind right kick panel) J/c 3 (near ecm) J/c 7 (behind upper right side of dash) Mass airflow meter (right side of engine compt, behind air box) Mpx- Mpx1 Mpx2 Mrel Passenger side j/b (behind lower right end of dash) Pwr Red Sftd Sftu Snow Sta Starting/ charging system Stop fuse 15a Stoplight switch (above brake pedal, on bracket) Stp Tha Thw A/T Wiring Diagram (2 of 2) for Lexus IS 300 2001 List of elements for A/T Wiring Diagram (2 of 2) for Lexus IS 300 2001: 49 (front side of intake manifold) ea (right side of transmission) (integral to park/neutral position switch) a/t indicator light switch Accel position sensor (on center rear of engine, on throttle body) Braided Cl+ Cl- Combi- nation meter Computer data lines system Driver side j/b (behind lower left end of dash) E01 E02 E03 E8 (top left side of engine) Eb (center side of intake manifold) Electronically controlled transmission solenoid (left side of transmission) Engine control module (ecm) (left front of engine compt, in protective case) Engine controls system Gauge fuse 10a Ge01 Hot in on or start J/c 1, j/c 2 (near ecm) J/c 4 (near ecm) Me01 Mil Nca Nco+ Nco- O/d direct clutch speed sensor (left side of transmission) Oil Red Sln+ Sln- Slt+ Slt- Slu+ Slu- Sp2+ Sp2- Speedo Tach Throttle control motor (on throttle body) Throttle position sensor (on throttle body) Transmission control switch (d-4) (integral to shift lock control ecu) Transmission control switch (l-2) Vehicle speed sensor (left rear of transmission) Vpa Vpa2 Vta Vta2
WARNING SYSTEMS Warning System Wiring Diagrams for Lexus IS 300 2001 List of elements for Warning System Wiring Diagrams for Lexus IS 300 2001: 51 (behind lower left end of dash) driver side j/b A/c control assembly A12 A13 Acc B5 (w/ pwr seat only) B6 (w/ pwr seat only) Becu Body ecu (behind lower left end of dash) Bsub Buzzer Combination meter Computer data lines system Dbkl Dcty Door fuse 20a Driver side j/b (behind lower left end of dash) Ecu-ig fuse 10a Engine control module (left front of eng compt) G201 (lower left center of dash, forward of center floor console) G202 G301 (under right front seat) G308 (base of left "a" pillar) Gauge fuse 10a Gnd Gnd2 H10 Hot at all times Hot in acc or run Hot in run or start J/c 13 (above left rear fenderwell) J/c 6 (behind left side of dash) Junction connector j/c 5 (behind left side of dash) Ksw L10 Left buckle switch Left front door courtesy Mpx+ Mpx- Mpx-b fuse 10a Mpx1 Mpx2 Obd2 P-s/b Passenger side j/b (behind lower right end of dash) Radio 2 fuse 10a Right buckle switch and seat belt warning occupant detection sensor Seat belt ind Switch Theft deterrent ecu (behind left end of dash) Unlock warning switch
WIPER/WASHER Front Wiper/Washer Wiring Diagram for Lexus IS 300 2001 List of elements for Front Wiper/Washer Wiring Diagram for Lexus IS 300 2001: 18 (rear of left front fender) g104 Combination switch Driver side j/b (behind lower left end of dash) Front wiper motor (at base of left side of windshield) G202 High Hot in on or start Int Int. time J/c 5 (behind left end of dash) Low Off Solid state Washer fuse 15a Washer motor (below left headlight) Washer switch Wiper fuse 25a Wiper switch Headlamp Washer Wiring Diagram for Lexus IS 300 2001 List of elements for Headlamp Washer Wiring Diagram for Lexus IS 300 2001: 28 Combination switch Dimmer switch Driver side j/b (behind lower left end of dash) Engine room r/b 1 (right rear of engine compt) Flash G104 (rear of left front fender) G11 G202 H-lp cln fuse 30a Head Headlight cleaner control relay (below left headlight) Headlight cleaner diode (behind left side of dash) Headlight cleaner motor (below left headlight) Headlight cleaner switch High Hot at all times Hot in on or start Interior lights system J/c 5 (behind left end of dash) J/c 6 (behind left side of dash) Light control switch Low Mtr Off Passenger side j/b (behind right end of dash) Tail Theft deterrent ecu (behind left end of dash) Washer fuse 15a
