Diagram sections — 34 (71 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS NAVIGATION PASSIVE RESTRAINTS POWER ANTENNA POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT 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 SC 430 2009 List of elements for Automatic A/C Wiring Diagram (1 of 2) for Lexus SC 430 2009: 75 (center of dash) air foot control servo motor (under steering column) A/c control assembly (center of dash) A/c room temperature sensor (center of dash) A/c thermistor (center of dash) A10 Acc Aif Air Amcdr Amcpa Amhdr Amhpa Aod Aof Automatic light control sensor & a/c solar sensor (upper right side of dash) Blower motor (right side of dash) Blower motor controller (right side of dash) Blw C11 Close Cls Computer data lines system Dgs Driver side j/b (left kick panel) Emop Emt1 Engine room 1 r/b (right side of engine compt) Exhaust gas sensor (left front of engine compt) Exterior lights system F11 Fan 2 fuse 40a Fan fuse 40a Ft2cl Ft2op Gas Gnd Hazd Heater fuse 10a Heater fuse 50a Hot at all times Hot w/ ig1 relay energized Ill+ Instrument panel j/b (upper center of dash) Interior lights system Junction connector j14 (right side of dash) Mpx+ Mpx- Mpx-ig fuse 7.5a Multi- display Navigation door & tilt control switch Open Open open/ Pnk Power tops system Red Reos S5-1 S5-2 Sg-1 Sg-2 Sg-3 Sg-4 Sw1 Sw2 Swe Tilt close Tp1 Tpdr Tpo Tppa Tsdr Tsl Tspa Tsr Automatic A/C Wiring Diagram (2 of 2) for Lexus SC 430 2009 List of elements for Automatic A/C Wiring Diagram (2 of 2) for Lexus SC 430 2009: 55 (left side of engine compt) engine room 2 r/b (right kick panel) passenger side j/b ecu A/c ambient temperature sensor (center of front bumper, behind grille) A/c comp relay A/c fuse 5a A/c magnetic clutch & lock sensor (on a/c compressor) Acmg Air bag Air inlet control servo motor (right side of dash) Air mix control servo motor (driver side) (left center of dash) Air mix control servo motor (passenger side) (right center of dash) Air vent mode servo motor (center of dash) C13 Computer data lines system Cooling fan ecu (front of engine compt) Driver side j/b (left kick panel) Dual E17 Ec (left side of cylinder head) Ed (rear of left fender) Engine control module (left side of engine compt) Engine coolant temperature sensor (top right side of engine) F11 Fan relay Gnd Gnd (vz) Gnd(m) Gnd(s) Heater relay Hot at all times Hot w/ acc relay energized Ii (left side dash brace) Junction connector j1 Junction connector j3 (engine room 2 r/b) Junction connector j4 (in ecu box) Junction connector j8 (left end of dash) Lcki M+(m) M+(s) M-(m) M-(s) Mcool Mhot Mpos 1 Mpos 2 Mpos 6 Passenger side j/b (right kick panel) Pr2 Pressure switch (upper left radiator support) Radio 2 fuse 10a Rfc Single Tam Thw Vz (gnd)
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram (1 of 2) for Lexus SC 430 2009 List of elements for Anti-lock Brakes Wiring Diagram (1 of 2) for Lexus SC 430 2009: 64 (left front wheel hub assembly) left front abs speed sensor (left side dash brace) ii (rear of left fender) ed (right front wheel hub assembly) right front abs speed sensor Abs 1 fuse 60a Abs 2 fuse 40a Abs motor relay Abs sol relay Ast Brake actuator (left rear of engine compt) Brake fluid level warning switch (in brake fluid reservoir) Driver side j/b (left kick panel) Ee (rear of left fender) Eng+ Eng- Engine room 1 j/b (right side of engine compt) Engine room 1 r/b (right side of engine compt) Engine room 2 r/b (left side of engine compt) Fl+ Fl- Fr+ Fr- Fss Gnd1 Gnd2 Gnd3 Gnd4 Hot at all times Junction connector j8 (left end of dash) Lbl Master cylinder pressure sensor (left rear of engine compt) Mr1 Mr2 Mt+ Mt- Mtt Nca Pmc Pnk Pps solenoid (right front of engine) R1+ R2+ Red Sa1 Sa2 Sa3 Sflh Sflr Sfrh Sfrr Short pin 3 Skid control ecu (left end of dash) Sol+ Sol- Srlh Srlr Srrh Srrr Str Trac motor relay Translate ecu (left side of dash) Trc+ Trc- Vcm Anti-lock Brakes Wiring Diagram (2 of 2) for Lexus SC 430 2009 List of elements for Anti-lock Brakes Wiring Diagram (2 of 2) for Lexus SC 430 2009: 82 (center of dash) ig (left side of dash) parking brake switch (right center of dash) center j/b +bi +bo A30 A31 Abs ind Abs-ig fuse 7.5a Afs ecu (left end of dash) Bat Brake ind Center j/b (right center of dash) Combination meter Computer data lines system Csw D-ig fuse 10a D/g D20 Driver side j/b (left kick panel) Driver side j/b ecu (left kick panel) E10 E14 E16 Engine room 2 r/b (left side of engine compt) Ess Flo Ggnd Gl1 Gl2 Gyaw Hot at all times Hot w/ ig 1 relay energized Hot w/ ig 2 relay energized Ig+ Ig1 Ig2 Ign fuse 5a Ih (under steering column) Junction connector 13 (right side of dash) Junction connector j2 (engine room 2 r/b) Left rear abs speed sensor (left rear wheel hub assembly) Mpx- b2 fuse 7.5a Mpx1 Mpx2 Nca Passenger side j/b (right kick panel) Pkb Pnk Red Right rear abs speed sensor (right rear wheel hub assembly) Rl+ Rl- Rr+ Rr- Skid control ecu (left end of dash) Slip ind Sp1 Spdl Ss+ Ss- Ss1 Ss1+ Ss1- Ss2+ Ss2- Steering sensor (on steering column) Stop fuse 5a Stop light switch (left side of dash) Stp Stp1 Stpa Trig Vgs Vsc off ind Vsc off switch Vsc warning buzzer (left side of dash) Vys Yaw Yaw rate sensor (under center console) Yaw2 Yss
ANTI-THEFT Anti-theft Wiring Diagram (1 of 2) for Lexus SC 430 2009 List of elements for Anti-theft Wiring Diagram (1 of 2) for Lexus SC 430 2009: 71 (right rear of luggage compt) j/c j18 (right side of dash) junction connector j13 Bdr Bl (under driver's seat) C16 Computer data lines system Cpse Cpub Cty D-door fuse 25a D17 D18 D19 Dle Driver door ecu (driver's door) Driver side j/b (left kick panel) E17 E18 Engine room 1 r/b (right side of engine compt) F11 F17 Gnd Hot at all times Hot in on or acc Hot in on or start I15 I21 Ill Instrument panel j/b (upper center of dash) Kul L22 L24 Lcm+ Lct Lcte Lcty Left door courtesy switch Left door lock motor, door key lock & unlock switch, & door unlock detection switch Lsw Luggage compartment door lock motor & detection switch (luggage compt lock assembly) Luggage room j/b (left rear of luggage compt) Luggage room j/b ecu (left rear of luggage compt) Mpx+ Mpx- Mpx-b1 fuse 7.5a Mpx-ig fuse 7.5a Mpx1 Mpx2 Mul P-door fuse 25a P10 P11 Passenger door ecu (front passenger's door) Passenger side j/b (right kick panel) Pnk Power window master switch Pwe Pws Radio 2 fuse 10a Red Right door courtesy switch Right door lock control switch Right door lock motor & door unlock detection switch S17 S18 Security fuse 7.5a Sig Sliding roof control ecu (left rear of luggage compt) Tail fuse 7.5a Wls1 Wlsw Anti-theft Wiring Diagram (2 of 2) for Lexus SC 430 2009 List of elements for Anti-theft Wiring Diagram (2 of 2) for Lexus SC 430 2009: 93 (16-19 not used) (25-28 not used) (34-40 not used) (6-12 not used) (front center of engine compt) engine hood courtesy switch (left kick panel) driver side j/b (left side dash brace) ii (left side of dash) transponder key computer (under steering column) ih +b2 Acc Agnd Air bag Ant1 Ant2 B11 B20 Buzzer Bzr Bzr2 Canh Canl Center j/b (right center of dash) Cncl Code Computer data lines system Cpub Cra relay D19 Data Driver side j/b (left kick panel) Driver side j/b ecu (left kick panel) Ed (rear of left fender) Efii Efio Engine control module (left side of engine compt) Engine room 1 r/b (right side of engine compt) Engine room 2 r/b (left side of engine compt) Exterior lights system F17 Front controller Gnd Haz Hdcy Head lp relay Headlights system Horn fuse 10a Horn relay Horn-rly Horns system Hot at all times Hot in on or start Hrly Ig2 Ign fuse 5a Ih (under steering column) Ile Imi Imo Ind Inner mirror Interior lights system J10 Junction connector j2 (engine room 2 r/b) Junction connector j3 (in engine room 2 r/b) Junction connector j9 & j10 (top left end of dash) Ksw Main fuse 50a Main luggage compartment door opener switch Mpx- Mpx1 Mpx2 Passenger side j/b (right kick panel) Passenger side j/b ecu (right kick panel) Pnk Rco Rda Red Rssi Rxck Security indicator light & headlight cleaner switch Sh- Tail-rly Theft deterrent ecu (left end of dash) Theft deterrent horn (right front of engine compt) Transponder key amplifier (behind left side of dash) Transponder key coil Turn- haz fuse 15a Txct Unlock warning switch (left side of dash) Vc12 Wireless door lock buzzer (left rear of engine compt) Wireless door lock control receiver
BODY CONTROL MODULES Driver Side J/B ECU Wiring Diagram for Lexus SC 430 2009 List of elements for Driver Side J/B ECU Wiring Diagram for Lexus SC 430 2009: 93 A31 Acc Afs ecu (left end of dash) Am1 fuse 5a Anti-lock brakes system Anti-theft system Bklr Bu+ Bu- Bubs C10 C11 Cltb Clte Clts Cncl Combination switch Dbil Dbkl Driver side j/b (left kick panel) Driver side j/b ecu E12 E17 E20 Engine controls system Engine room 1 r/b (right side of engine compt) Exterior lights system F12 Fuel Gnd Gnd2 Haz Hdcl Hdcy Hdlo Head Headlights system Hot at all times Hot in run or start Hrly Ig (center of dash) Ignition switch Ii (left side dash brace) Interior lights system J/c j13 (right side of dash) L24 Lock Luggage room j/b (left rear of luggage compt) Luggage room j/b ecu Mirrors system Mpx Mpx-b Mpx-b3 fuse 7.5a Mpx-ig Mpx-ig fuse 7.5a Mpx1 Mpx2 Mpx3 Msw Of dash) Panel fuse 5a Panel1 Panel2 Passenger side j/b (right kick panel) Passenger side j/b ecu Passive restraint system Pnk R/e Red Ret Run off Shift interlock system Start Stp Stpa Stpi Stpo Sw1 Sw2 Sw3 Tilt & telescopic ecu (left end Tr+ Tr1 Tr2 Tr3 Trunk, tailgate, fuel doors system Tsw Turn lh Turn rh Turn-haz fuse 15a Tx1 Warning systems Wiper/washer system Front Controller Wiring Diagram for Lexus SC 430 2009 List of elements for Front Controller Wiring Diagram for Lexus SC 430 2009: 36 (right kick panel) passenger side j/b A31 Afs ecu (left end of dash) Driver side j/b (left kick panel) E10 Ed (rear of left fender) Engine room 1 r/b (right side of engine compt) Engine room 2 r/b (left side of engine compt) Exterior lights system Ffog-rly Fhhi(1) Fhhi(2) Fmb3 Fmig Front controller Gateway ecu (right side of dash) Gnd H-lp upr fuse 20a Headlights system Hlhl Hlhr Horn-rly Horns system Hot at all times Hot in on or start Junction connector j3 (engine room 2 r/b) Mpl2 Mpx-b3 fuse 7.5a Mpx-ig fuse 7.5a Mpx1 Mpx2 Passenger side j/b (right kick panel) Tail-rly Wiper/washer system Wsh-rly Wslv Luggage Room J/B ECU Wiring Diagram for Lexus SC 430 2009 List of elements for Luggage Room J/B ECU Wiring Diagram for Lexus SC 430 2009: 56 Bck1 Bk/up Bu- Bubs C11 Combination switch Def Defogger system Driver side j/b (left kick Driver side j/b ecu (left kick panel) Engine room 1 r/b (right side of engine compt) Exterior lights system F12 F13 Fuel opn fuse 10a Fuel opn(o) Fuel opn(p) Gateway ecu (right side of dash) Hic Hot at all times Interior lights system J/c j13 (right side of dash) J/c j17 (left rear of luggage compt) L o/c(p) L22 L23 L24 Lce1 Lcm+ Lcty Lgcy Luggage room j/b (left rear of luggage compt) Luggage room j/b ecu Mpl1 Mpx+ Mpx- Mpx-b Mpx-b3 fuse 7.5a Mpx-ig Mpx-ig fuse 7.5a Mpx2 P-gnd Panel) Passenger side j/b (right kick panel) Pnk Red Rr j/b fuse 50a Stop1 Stop2 Stp1 Stp3 Tail 1 Tail 2 Til1 Til2 Trunk, tailgate, fuel doors system Passenger Side J/B ECU Wiring Diagram for Lexus SC 430 2009 List of elements for Passenger Side J/B ECU Wiring Diagram for Lexus SC 430 2009: 47 A/c control assembly (center of dash) A10 Acc Air bag Air conditioning system Am1 fuse 5a Back Bkll Driver side j/b (left kick panel) Driver side j/b ecu circuit E17 F11 Fspt Gnd Gnd1 Hot at all times Hot in on or start Ig (center of dash) Ignition switch Ih (under steering column) Ile Instrument panel j/b (upper center of dash) Interior lights system Lock Mpx+ Mpx- Mpx-b Mpx-b2 fuse 7.5a Mpx-ig Mpx-ig fuse 7.5a Navigation system Off Passenger side j/b (right kick panel) Passenger side j/b ecu (right kick panel) Passive restraint system Pbil Pwr Red Run S/m S/s Snow Start Transmissions system Wip Wiper fuse 30a Wiper/washer system
COMPUTER DATA LINES Data Link Connector Wiring Diagram for Lexus SC 430 2009 List of elements for Data Link Connector Wiring Diagram for Lexus SC 430 2009: 35 (center of dash) ig (under center console) air bag sensor assembly (under steering column) ih A21 B16 B18 Bat Ca1h Ca1l Canh Canl Center j/b (right center of dash) Combination meter D/g D20 Data link connector (dlc) 3 (left side of dash) Driver side j/b (left kick panel) Ec (left side of cylinder head) Engine control module (left side of engine compt) F16 Gateway ecu (right side of dash) Hot at all times J/c j25 (right side of dash) J/c j4 & j5 (in ecu box) J/c j9 & j10 (top left end of dash) J10 Multi- display Obd fuse 7.5a Pnk Red Sil Skid control ecu (left end of dash) Tac Tach Translate ecu (left side of dash) High/Low Bus Wiring Diagram for Lexus SC 430 2009 List of elements for High/Low Bus Wiring Diagram for Lexus SC 430 2009: 98 (behind left kick panel) driver side j/b (center of dash) (top left end of dash) j/c j9 & j10 (upper center of dash) instrument panel j/b A/c control assembly (center of dash) A10 A21 A31 Acc Afs ecu (left end of dash) Air Air bag sensor assembly (under center console) Atx+ Atx- Bag Bu+ Bu- Bubs C10 C11 Ca1h Canh Canl Center j/b (right center of dash) Combination meter Combination switch D17 D20 Data link connector (dlc) 3 (left side of dash) Driver door ecu (driver's door) Driver side j/b ecu (left kick panel) Driver's power seat ecu (under driver's seat) E10 E16 E17 Engine compt) Engine control module (left side of Engine room 2 r/b (left side of engine compt) F11 F13 F18 Front passenger's power seat ecu (under driver's seat) Gateway ecu (right side of dash) Gnd Gtx+ Gtx- Hot at all times Hot in on or acc Hot in or or start Ig (behind center of dash) Ih (under steering column) J/c j13 (right side of dash) J/c j25 (right side of dash) J10 L24 Luggage room j/b ecu (left rear of luggage compt) Mpd1 Mpi1 Mpi2 Mpl1 Mpl2 Mpx Mpx+ Mpx- Mpx-b2 fuse 7.5a Mpx-ig fuse 7.5a Mpx1 Mpx1 front controller Mpx2 Mpx3 Multi- display Multi-display P21 P23 Passenger door ecu (front passenger's door) Passenger mpx- Passenger side j/b (right kick kick panel) Passenger side j/b (right kick panel) Pnk Radio & player Radio 2 fuse 10a Red S18 Side j/b ecu Sil Skid control ecu (left end of dash) Sliding roof control ecu (left rear of luggage compt) Theft deterrent ecu (left end of dash) Tilt & telescopic ecu (left end of dash) Tire pressure warning ecu & receiver Translate ecu (left side of dash) Transponder key computer (left side of dash) Tx1 Tx1+ Tx1- Txs+ Txs- W/ navigation
COOLING FAN Cooling Fan Wiring Diagram for Lexus SC 430 2009 List of elements for Cooling Fan Wiring Diagram for Lexus SC 430 2009: 31 C11 C13 Cooling fan ecu (front of engine compt) Driver side j/b (left kick panel) Dual Ed (rear of left fender) Engine control module (left side of engine compt) Engine coolant temperature sensor (top right side of engine) Engine room 1 r/b (right side of engine compt) Engine room 2 r/b (left side of engine compt) Fan 2 fuse 40a Fan fuse 40a Fan relay Gnd(m) Gnd(s) Heater fuse 10a Hot at all times Hot w/ ig1 relay energized Ii (left side dash brace) Junction connector j3 (engine room 2 r/b) Junction connector j53 Junction connector j8 (left end of dash) M+(m) M+(s) M-(m) M-(s) Pr2 Pressure switch (upper left radiator support) Rfc Single Thw
CRUISE CONTROL Cruise Control Wiring Diagram for Lexus SC 430 2009 List of elements for Cruise Control Wiring Diagram for Lexus SC 430 2009: 81 (left side of dash) data link connector (dlc) 3 (right side of cylinder head) +b1 +bm +res -set Accel pedal position sensor (left center of dash) Batt C10 Cancel Ccs Center j/b (right center of dash) Combination meter Combination switch Computer data lines system Controlled transmission) (on transmission) Cruise control switch Cruise ind D-ig fuse 10a Driver side j/b (left kick panel) Driver side j/b ecu (left kick panel) E01 E02 E03 E19 Eb (right side of cylinder head) Ec (left side of cylinder head) Ecc Ed (rear of left fender) Efi fuse 25a Efi relay Engine control module (left side of engine compt) Engine room 1 r/b (right side of engine compt) Engine room 2 r/b (left side of engine compt) Epa Epa2 Etcs fuse 15a F15 Ge01 Hot at all times Hot w/ ig1 relay energized Hot w/ ig2 relay energized Ign fuse 5a Igsw Ih (under steering column) Junction conn- ector 2 (engine room 2 r/b) Junction connector (left side of engine compt) Junction connector 2 (engine room 2 r/b) Junction connector 3 (engine room 2 r/b) Junction connector 4 & 5 (in ecu box) Junction connectors (in ecu box) Me01 Mpx1 Mpx2 Mrel Nca On/off Park/ neutral position switch (on transmission) Passenger side j/b (right kick panel) Pnk Red Skid control ecu (left end of dash) Sp1 Sp2+ Sp2- Speedometer St1- Stop fuse 5a Stop light switch (left side of dash) Stp Stpi Stpo Throttle body assembly (top center of engine) Vcp2 Vcpa Vehicle speed sensor (electronically Vpa Vpa2 Vta Vta1 Vta2
DEFOGGERS Heated Mirrors Wiring Diagram for Lexus SC 430 2009 List of elements for Heated Mirrors Wiring Diagram for Lexus SC 430 2009: 43 (right side of dash) j/c j13 (under driver's seat) bl A/c control assembly (center of dash) A10 Acc Bdr Computer data lines system Cpub D-door fuse 25a D17 D19 Driver door ecu (driver's door) Driver side j/b (left kick panel) E17 Engine room 1 r/b (right side of engine compt) F11 Gnd Hot at all times Hot in acc or on Hot in on or start Htr+ Htr- I15 Ih (under steering column) Instrument panel j/b (upper center of dash) J/c j18 (right rear of luggage compt) Left remote control mirror Luggage room j/b (left rear corner of luggage compt) Mirror Mirror heater Mpx+ Mpx- Mpx- b1 fuse 7.5a Mpx-ig fuse 7.5a Mpx1 Mpx2 P-door fuse 25a P11 Passenger door ecu (front passenger's door) Passenger side j/b (right kick panel) Radio 2 fuse 10a Right remote control mirror heater Sig Rear Defogger Wiring Diagram for Lexus SC 430 2009 List of elements for Rear Defogger Wiring Diagram for Lexus SC 430 2009: 28 A/c control assembly (center of dash) A10 Acc Bn (left quarterpanel) Computer data lines system Def Defog fuse 30a Defog relay Dome fuse 7.5a E13 E17 Gnd Hot at all times Hot in acc or on Ih (under steering column) Instrument panel j/b (upper center of dash) L24 Luggage room j/b (left rear of luggage compt) Luggage room j/b ecu (left rear of luggage compt) Mpx+ Mpx- Noise filter (rear window defogger) (left front of luggage compt) Passenger side j/b (right kick panel) R12 R13 Radio 2 fuse 10a Rear window defogger (rear window) Red
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram for Lexus SC 430 2009 List of elements for Electronic Power Steering Wiring Diagram for Lexus SC 430 2009: 51 +bi +bo A30 A31 Abs-ig fuse 7.5a Afs ecu (left end of dash) Bat Center j/b (right center of dash) Combination meter D/g Data link connector (dlc) 3 (left side of dash) Driver side j/b (left kick panel) E10 E14 E16 Ed (rear of left fender) Ee (rear of left fender) Ess Flo Gnd1 Gnd2 Gnd3 Gnd4 Hot at all times Hot w/ ig1 relay energized Ig1 Ih (under steering column) J10 Junction connector j13 (right side of dash) Junction connector j9 & j10 (top left end of dash) Mpx- Mpx-b2 fuse 7.5a Mxp1 Passenger side j/b (right kick panel) Pnk Pps solenoid (right front of engine) Red Sil Skid control ecu (left end of dash) Sol+ Sol- Sp1 Spdl Ss+ Ss- Ss1+ Ss1- Ss2+ Ss2- Steering sensor (on steering column) Trig
ENGINE PERFORMANCE
4.3L 4.3L, Engine Performance Wiring Diagram (1 of 6) for Lexus SC 430 2009 List of elements for 4.3L, Engine Performance Wiring Diagram (1 of 6) for Lexus SC 430 2009: 62 (left kick panel) driver side j/b ecu (left side of dash) stop light switch +b1 Accel pedal position sensor (left center of dash) Acmg Air conditioning system B13 B16 Bat Batt Canh Canl Center j/b (right center of dash) Combination meter Computer data lines system Cooling fans system D12 Data link connector 3 (left side of dash) Ect pwr ind Ect snow ind Engine control module (ecm) (left side of engine compt) Epa Epa2 Fpr Ht1b Ht2b Ig+ Igsw Ih (under steering column) Imi Imo Mil ind Mpmp Mpx+b Mrel O1b- O2b- Ox1b Ox2b Pnk Ppmp Pr2 Red Rfc S6 mpx1 Skid control ecu (left end of dash) Sp1 Spd Speedometer Sta Stp Stpi Stpo Tac Tach Tachometer Tam Vcp2 Vcpa Vpa Vpa2 Vpmp 4.3L, Engine Performance Wiring Diagram (2 of 6) for Lexus SC 430 2009 List of elements for 4.3L, Engine Performance Wiring Diagram (2 of 6) for Lexus SC 430 2009: 25 (left side of dash) transponder key computer Cir opn relay D-ig fuse 10a Driver side j/b (left kick panel) Ed (rear of left fender) Efi fuse 25a Efi relay Efii Efio Engine room 1 r/b (right side of engine compt) Engine room 2 r/b (left side of engine compt) Etcs fuse 15a F/ pmp relay F16 Fuel pump & sender (in fuel tank) Fuel pump resistor (left rear of engine compt) Hot at all times Hot in on or start Ign fuse 5a J/c j17 (left rear of luggage compt) J/c j2 (engine room 2 r/b) J/c j3 (engine room 2 r/b) a Obd fuse 7.5a Red Stop fuse 5a 4.3L, Engine Performance Wiring Diagram (3 of 6) for Lexus SC 430 2009 List of elements for 4.3L, Engine Performance Wiring Diagram (3 of 6) for Lexus SC 430 2009: 28 (engine room 2 r/b) j/c j2 (left side of engine compt) engine room 2 r/b Acc Efi 2 fuse 10a Ekn2 Eknk Engine control module (ecm) (left side of engine compt) Hot at all times Ignition switch Knk1 Knk2 Knock sensor (bank 1) Knock sensor (bank 2) Lock Mol Mops Nca Nsw Oil pressure switch (left front side of engine) Red Short pin 1 Short pin 2 Sp2+ Sp2- Start Starter fuse 7.5a Starter relay Vehicle speed sensor (electronically controlled transmission) (on transmission) 4.3L, Engine Performance Wiring Diagram (4 of 6) for Lexus SC 430 2009 List of elements for 4.3L, Engine Performance Wiring Diagram (4 of 6) for Lexus SC 430 2009: 26 (left kick panel) driver side j/b (on transmission) park/neutral position switch (right front of engine) engine oil level sensor (right kick panel) passenger side j/b C14 Canister pressure sensor Canister pump module (rear of vehicle chassis) Eb (right side of cylinder head) Ec (left side of cylinder head) F14 F15 Gnd Ih (under steering column) J/c j23 J/c j24 J/c j4 & j5 (in ecu box) J/c j4 (in ecu box) Leak detection pump Level Nca P/n Sgnd Temp Vcc Vent valve Vout 4.3L, Engine Performance Wiring Diagram (5 of 6) for Lexus SC 430 2009 List of elements for 4.3L, Engine Performance Wiring Diagram (5 of 6) for Lexus SC 430 2009: 17 (injectors 1, 2, 4, 6 & 8: top right of engine) (injectors 3, 5 & 7: top left of engine) fuel injectors (top rear of engine) E2g Engine coolant temperature sensor (top right side of engine) Engine room 2 r/b (left side of engine compt) Heated oxygen sensor (bank 1 sensor 1) (left exhaust manifold) Heated oxygen sensor (bank 1 sensor 2) (exhaust system, near catalytic converter) Heated oxygen sensor (bank 2 sensor 1) (right exhaust manifold) Heated oxygen sensor (bank 2 sensor 2) (exhaust system, near catalytic converter) Hot in on or start Inj fuse 10a J/c j23 Mass airflow (maf) meter (right side of engine compt) Nca Tha Vsv (acis) (top right rear of engine) Vsv (purge) 4.3L, Engine Performance Wiring Diagram (6 of 6) for Lexus SC 430 2009 List of elements for 4.3L, Engine Performance Wiring Diagram (6 of 6) for Lexus SC 430 2009: 80 (right side of cylinder head) eb (top left side of engine) (top right side of engine) +bm Acis Air conditioning system Camshaft position sensor (left front of engine) Crankshaft position sensor (left front of engine) E01 E02 E03 E2g Eb (right side of cylinder head) Engine control module (ecm) (left side of engine compt) G2- Ge01 Ht1a Ht2a Igf Igf1 Igf2 Ignition coil & igniter 1 Ignition coil & igniter 2 Ignition coil & igniter 3 Ignition coil & igniter 4 Ignition coil & igniter 5 Ignition coil & igniter 6 Ignition coil & igniter 7 Ignition coil & igniter 8 Igt Igt1 Igt2 Igt3 Igt4 Igt5 Igt6 Igt7 Igt8 Inj 1 Inj 2 Inj 3 Inj 4 Inj 5 Inj 6 Inj 7 Inj 8 J/c j23 J/c j23 & j24 J23 J24 Lcki Left camshaft timing oil control valve (top left of engine) Left vvt sensor (top left side of engine) Me01 Nca Ne+ Ne- O1a- O2a- Oc1+ Oc1- Ocr+ Ocr- Ox1a Ox2a Prg Red Right camshaft timing oil control valve (top right of engine) Right vvt sensor (top right side of engine) Starting/charging system Tha Throttle body assembly (top center of engine) Thw Vta Vta1 Vta2 Vv1+ Vv1- Vv2+ Vv2-
EXTERIOR LIGHTS Backup Lamps Wiring Diagram for Lexus SC 430 2009 List of elements for Backup Lamps Wiring Diagram for Lexus SC 430 2009: 44 (right side of dash) A31 Afs ecu (left end of dash) Backup light switch (on transmission) Bck1 Bk/up Bl (under driver's seat) C11 Ca1h Ca1l Canh Canl Combination switch D-ig fuse 10a Drive side j/b (left kick panel) Driver side j/b ecu (left kick panel) E10 Engine control module (left side of engine compt) Engine room 1 r/b (right side of engine compt) Engine room 2 r/b (left side of engine compt) Front controller Gateway ecu (right side of dash) Hot at all times Hot in on or start Junction connector j17 (left rear of luggage compt) Junction connector j25 Junction connector j5 (in ecu box) L22 L24 Left back- up light Luggage room j/b (left rear of luggage compt) Luggage room j/b ecu Mpl1 Mpl2 Mpx+ Mpx- Mpx1 Mpx2 P-gnd Passenger side j/b (right kick panel) Red Right back- up light Rr j/b fuse 50a Tilt & telescopic ecu (left end of dash) Exterior Lamps Wiring Diagram (1 of 2) for Lexus SC 430 2009 List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Lexus SC 430 2009: 81 (left side of engine compt) engine room 2 r/b (rear of left fender) ed Bl (under driver's seat) Bubs C11 C12 C16 Center j/b (right center of dash) Combination switch Computer data lines system Cra relay Cty D10 D20 Driver side j/b (left kick panel) Engine room 1 r/b (right side of engine compt) F11 Fmb3 Fmig Front controller Gnd High mounted stop light Hot at all times Hot in on or start Htr- Ig (center of dash) Instrument panel j/b (upper center of dash) Interior lights system Junction connector j1 (engine room 2 r/b) Junction connector j13 (right side of dash) Junction connector j14 (right side of dash) Junction connector j17 (left rear of luggage compt) Junction connector j18 (right rear of luggage compt) Junction connector j3 (engine room 2 r/b) Junction connector j8 (left end of dash) L22 L23 L24 Lce lp fuse 7.5a Lce1 Left front parking light Left front side marker light Left rear combination light Left rear side marker light Left stop light License plate light Luggage room j/b ecu Luggage room j/b ecu (left rear of luggage compt) Mpx+ Mpx- Mpx-b3 fuse 7.5a Mpx-ig fuse 7.5a Mpx1 Mpx2 P-gnd P11 Passenger door ecu (front passenger's door ) Passenger side j/b (right kick panel) Pnk Red Right front parking light Right front side marker light Right rear combination light Right rear side marker light Right remote control mirror Right stop light Rr j/b fuse 50a Stop1 Stop2 Stp1 Stp3 Tail fuse 7.5a Tail light Tail-rly Tail1 Tail2 Til1 Til2 Turn Turn signal light Tx1 Exterior Lamps Wiring Diagram (2 of 2) for Lexus SC 430 2009 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Lexus SC 430 2009: 62 (under steering column) ih +ig A/c control assembly (center of dash) Afs ecu (left end of dash) Bl (under driver's seat) Bu+ Bu- Center j/b (right center of dash) Combination meter Computer data lines system Cty D-ig fuse 10a D17 D19 Driver door ecu (driver's door) Driver side j/b (left kick panel) Driver side j/b ecu E13 E18 Ed (rear of left fender) Engine room 1 r/b (right side of engine compt) F15 Gnd Haz Hazard switch Hot at all times Hot in on or start Htr- Ig+ Ih (under steering column) Interior lights system Junction connector j12 (right side of dash) Junction connector j13 (right side of dash) Junction connector j14 (right side of dash) Junction connector j25 (right side of dash) Junction connector j3 (engine room 2 r/b) Left front turn signal light Left remote control mirror Left turn Left turn ind Luggage room j/b (left rear of luggage compt) Mpx+ Mpx+b Mpx- Mpx-b Mpx-b2 fuse 7.5a Mpx1 Mpx2 Passenger side j/b (right kick panel) Pnk Rear lights ind Red Right front turn signal light Right turn Right turn ind Stop fuse 5a Stop light switch (left side of dash) Stpi Tail ind (canada) Turn Turn signal flasher relay (left side of dash) Turn- haz fuse 15a
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 3) for Lexus SC 430 2009 List of elements for Ground Distribution Wiring Diagram (1 of 3) for Lexus SC 430 2009: 83 (if equipped) multi- display (if equipped) seat heater switch A/c control assembly A10 A21 A31 Acc relay Afs ecu Afs off switch Air bag sensor assembly Audio door control switch B10 B11 B20 B21 B22 Brake actuator Brake fluid level warning switch C11 C13 Center j/b (right center of dash) Cigarette lighter Combi- nation switch Combination meter D10 D16 D17 D18 D19 D20 Data link connector Driver side j/b (left kick panel) Driver side j/b ecu E j10 E12 E14 E20 Electronically controlled transmission pattern select switch F j9 F14 F15 F16 F17 F18 Fuel lid opener switch Gateway ecu Glove box light H j10 Ig (center of dash) Ig 1 relay Ih (under steering column) Ii (left side dash brace) Ij (right side dash brace) Inner mirror J/c j11 (center of dash) J/c j9 & j10 (top left end of dash) Left vanity light Luggage compartment door opener main switch Luggage compartment door opener switch Mirror retractor switch, headlight cleaner switch & security indicator light Multi- display Passenger side j/b (right kick panel) Passenger side j/b ecu Personal light, garage door opener Power outlet Pressure switch Radio & player Right vanity light Shift lock control ecu Steering sensor Telltale light assembly Theft deterrent ecu Tilt & telescopic ecu Tire pressure warning ecu and receiver Tire pressure warning reset switch Tire pressure warning select switch Trans- ponder key computer Translate ecu Transmission control switch Turn signal flasher relay Unlock warning switch & key interlock solenoid Vsc off switch W/ mirror retractor Ground Distribution Wiring Diagram (2 of 3) for Lexus SC 430 2009 List of elements for Ground Distribution Wiring Diagram (2 of 3) for Lexus SC 430 2009: 78 (left side of engine compartment) engine room 2 r/b A/c magnetic clutch & lock sensor B j4 B j5 B j9 Blower motor Brake actuator C10 Camshaft position sensor shield Canister pump module Combi- nation switch Controller Cooling fan ecu Crankshaft position sensor shield Data link connector Driver side j/b (left kick panel) E19 Ea (rear of right fender) Eb (right side of cylinder head) Ec (left side of cylinder head) Ed (rear of left fender) Ee (rear of left fender) Efi relay Engine control module Engine hood courtesy switch Engine oil level sensor Engine room 1 r/b (right side of engine compartment) Exhaust gas sensor Fan relay Front controller Front wiper motor Headlight cleaner control relay Heated oxygen sensor (bank 1 sensor 1) shield Heated oxygen sensor (bank 1 sensor 2) shield Heated oxygen sensor (bank 2 sensor 1) shield Heated oxygen sensor (bank 2 sensor 2) shield If (left kick panel) Ig2 relay Ignition coil & igniter 1 Ignition coil & igniter 2 Ignition coil & igniter 3 Ignition coil & igniter 4 Ignition coil & igniter 5 Ignition coil & igniter 6 Ignition coil & igniter 7 Ignition coil & igniter 8 Ik (right kick panel) J/c j14 J/c j23 J/c j24 (left side of engine compt) J/c j3 (engine room 2 r/b) J/c j4 & j5 (in ecu box) J/c j8 J/c j9 & j10 (top left end of dash) J10 J4 b Knock sensor (bank 1) knock sensor (bank 2) shield Left front fog light Left front parking light Left front side marker light Left front turn signal light Left headlight (high) Left headlight assembly Left vvt sensor shield Multi- display Nca Park/neutral position switch, a/t indicator light switch & backup light switch Pressure switch Right front fog light Right front parking light Right front side marker light Right front turn signal light Right headlight (high) Right headlight assembly Right vvt sensor shield Skid control ecu Washer level sensor Washer motor Ground Distribution Wiring Diagram (3 of 3) for Lexus SC 430 2009 List of elements for Ground Distribution Wiring Diagram (3 of 3) for Lexus SC 430 2009: 61 (if equipped) navigation amplifier Auto antenna control relay Bl (under driver's seat) Bm (under front passenger's seat) Bn (left quarterpanel) Bo (near stereo component amplifier) Bp (left quaterpanel) Bq (right quarterpanel) D19 Driver door ecu Fuel lid opener motor Fuel pump High mounted stop light J/c j17 J/c j18 J/c j19 (under driver's seat) J/c j20 (under driver's seat) J/c j21 (under front passenger's seat) J/c j22 (under front passenger's seat) L24 Left backup light Left buckle switch Left rear combi- nation light Left rear side marker light Luggage room j/b (left rear of luggage compartment) Luggage room j/b ecu Lumbar support control switch (driver's seat) Lumbar support control switch (front passenger's seat) Navigation ecu Occupant classification ecu P11 P21 P22 P23 P24 Passenger door ecu Power seat control switch (driver's seat) Power seat control switch (front passenger's seat) Power seat ecu (driver's seat) Power seat ecu (front passenger's seat) Power seat position sensor (driver's seat front vertical control) Power seat position sensor (driver's seat lifter control) Power seat position sensor (driver's seat reclining control) Power seat position sensor (driver's seat slide control) Power seat position sensor (front passenger's seat front vertical control) Power seat position sensor (front passenger's seat lifter control) Power seat position sensor (front passenger's seat reclining control) Power seat position sensor (front passenger's seat slide control) R13 Rear window defogger Right backup light Right buckle switch & occupant detection sensor Right rear combi- nation light Right rear side marker light S18 S19 S22 Seat heater controller (driver's seat) Seat heater controller (front passenger's seat) Sliding roof control ecu Stereo component amplifier
HEADLIGHTS Adaptive Front Lighting Wiring Diagram for Lexus SC 430 2009 List of elements for Adaptive Front Lighting Wiring Diagram for Lexus SC 430 2009: 84 (behind left headlamp assembly) (behind right headlamp assembly) (center of dash) ig (on steering column) steering sensor A30 A31 Abs-ig fuse 7.5a Afs ecu (left end of dash) Afs off indicator Afs off switch Bl1+ Bl1- Bl2+ Bl2- Br1+ Br1- Br2+ Br2- Center j/b (right center of dash) Combination meter Computer data lines system D-ig fuse 10a D19 D20 Driver side j/b (left kick panel) E10 red Ess Flo Front height control sensor (forward of left front strut tower) H-lp lvl fuse 10a Hot at all times Hot in Hot in on or start Ig+ Ig1 Ih (under steering column) Interior lights system J/c j9 & j10 (top left end of dash) J10 Junction connector j13 (right side of dash) Left headlight beam level control actuator (behind left headlight assembly) Light headlight swivel motor Ll1+ Ll1- Ll2+ Ll2- Lr1+ Lr1- Lr2+ Lr2- Motor Mpx+ Mpx+b Mpx- Mpx-b2 fuse 7.5a Mpx1 Mpx2 Msw On or start Passenger side j/b (right kick panel) Pnk Rear height control sensor (under left rear of vehicle) Red Right headlight beam level control actuator (behind right headlight assembly) Right headlight swivel motor Sbf Sbr Sensor Sgf Sgr Shfl Shrl Skid control ecu (left end of dash) Smbl Smbr Smgl Smgr Sml Smr Spdl Ss+ Ss- Ss2+ Ss2- Headlamps Wiring Diagram (1 of 2) for Lexus SC 430 2009 List of elements for Headlamps Wiring Diagram (1 of 2) for Lexus SC 430 2009: 66 (left kick panel) driver side j/b Automatic light control sensor (upper right side of dash) Bu+ Bu- Bubs C12 C16 Center j/b (right center of dash) Cltb Clte Clts Combination meter Combination switch Computer data lines system D-ig fuse 10a D10 D20 Driver side j/b (left kick panel) Driver side j/b ecu E14 E16 F11 F15 Fr fog fuse 15a Front fog ind Gateway ecu (right side of dash) Gnd Gnd2 Head Head indicator (usa) High beam indicator Hot at all times Hot in on or start Hrly Ig (center of dash) Ig+ Ih (under steering column) Ii (left side dash brace) Instrument panel j/b (upper center of dash) Junction connector j13 (right side of dash) L24 Luggage room j/b ecu (left rear of luggage compartment) Mpd1 Mpd2 Mpi1 Mpi2 Mpl1 Mpl2 Mpx+ Mpx+b Mpx- Mpx-b Mpx-b2 fuse 7.5a Mpx-b3 fuse 7.5a Mpx-ig Mpx-ig fuse 7.5a Mpx1 Mpx2 Parking brake switch (left side of dash) Passenger side j/b (right kick panel) Pkb Red Skid control ecu (left end of dash) Tail fuse 7.5a Tilt & telescopic ecu (left end of dash) Tx1 Headlamps Wiring Diagram (2 of 2) for Lexus SC 430 2009 List of elements for Headlamps Wiring Diagram (2 of 2) for Lexus SC 430 2009: 46 (left side of engine compt) engine room 2 r/b (right side of engine compt) engine room 1 r/b Afs ecu (left end of dash) Computer data lines system Control ecu light Cra relay Cty Driver door ecu (driver's door) E10 Ed (rear of left fender) Exterior lights system Ffog-rly Fhhi(1) Fhhi(2) Fmb3 Fmig Fr fog relay Front controller Gnd H-lp l lwr fuse 15a H-lp r lwr fuse 15a H-lp upr fuse 20a Head lp relay Hlhl Hlhr Hot at all times Junction connector j14 (right side of dash) Junction connector j3 (engine room 2 r/b) Junction connector j8 (left end of dash) Left door courtesy switch Left front fog light Left headlight (high) Left headlight assembly Low (hid) Main fuse 50a Mpx1 Mpx2 Mpx2 d17 Passenger door ecu (front passenger's door) Passenger side j/b (right kick panel) Red Right door courtesy switch Right front fog light Right headlight (high) Right headlight assembly Tail-rly
HORN Horn Wiring Diagram for Lexus SC 430 2009 List of elements for Horn Wiring Diagram for Lexus SC 430 2009: 23 Combination switch Computer data lines system Driver side j/b (left kick panel) Driver side j/b ecu (left kick panel) Ed (rear of left fender) Engine room 1 r/b (right side of engine compt) Engine room 2 r/b (left side of engine compt) Front controller Gnd Horn fuse 10a Horn relay Horn rly Horn switch Hot at all times Junction connector j3 (engine room 2 r/b) Left horn (behind grille) Mpx Mpx1 Mpx2 Mpx3 Pnk Right horn (behind grille) Security fuse 7.5a
INSTRUMENT CLUSTER
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram (1 of 2) for Lexus SC 430 2009 List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for Lexus SC 430 2009: 68 A/c control assembly (center of dash) A10 Afs ecu (left end of dash) Air bag C10 Center j/b (right center of dash) D19 D20 Data Dbil Dome fuse 7.5a Door Driver side j/b (left kick panel) Driver's side j/b ecu E10 E13 E16 Engine room 2 r/b (left side of engine compt) Front mpx1 controller Fspt Gateway ecu (right side of dash) Gnd Gnd1 Hot at all times Ig (center of dash) Ignition key cylinder light Ih (under steering column) Ile Instrument panel j/b (upper center of dash) J/c j13 (right side of dash) J/c j18 (right rear of luggage compt) J/c j9 & j10 (top left end of dash) J10 Ksw Left foot light Left vanity light Map Mpd1 Mpd2 Mpi1 Mpi2 Mpl1 Mpl2 Mpx Mpx+ Mpx- Mpx-b Mpx-b2 fuse 7.5a Mpx-b3 fuse 7.5a Mpx1 Mpx2 Passenger side j/b (right kick panel) Passenger side j/b ecu Pbil Personal light Rco Rda Red Right buckle switch (front passenger's seat belt buckle) Right foot light Right scuff plate light Right vanity light Rssi Theft deterrent ecu (left end of dash) Tire pressure warning ecu & receiver (center of dash) Transponder key computer (left side of dash) Unlock warning switch (left side of dash) Wireless door lock control receiver Courtesy Lamps Wiring Diagram (2 of 2) for Lexus SC 430 2009 List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for Lexus SC 430 2009: 60 (driver's seat belt buckle) left buckle switch (under driver's seat) (under steering column) ih Air bag sensor assembly (under center console) Bdr Bl (under driver's seat) Combination meter Combination switch Cty Ctyb Cyl D-door fuse 25a D-ig fuse 10a Driver door ecu (driver's door) Driver side j/b (left kick panel) Engine room 1 r/b (right side of engine compt) F12 F13 F15 F18 Gnd Gnd d19 Hot at all times Hot in on or start Ig+ J/c j13 (right side of dash) J/c j17 (left rear of luggage compt) a J/c j18 (right rear of luggage compt) L22 L24 Left door courtesy light Left door courtesy switch Left luggage compartment light Left scuff plate light Lgcy Luggage room j/b (left rear of luggage compt) Luggage room j/b ecu Mpx+ Mpx+b Mpx- Mpx-b Mpx1 Mpx2 Mpx2 d17 Open door ind P-door fuse 25a P-gnd P11 Passenger door ecu (front passenger's door) Passenger side j/b (right kick panel) Pnk Power seat ecu (driver's seat) Power seat ecu (front passenger's seat) (under front passenger's seat) Red Right door courtesy light Right door courtesy switch Right luggage compartment light Skid control ecu (left end of dash) Sliding roof control ecu (left rear of luggage compt) Tilt & telescopic ecu (left end of dash) Instrument Illumination Wiring Diagram (1 of 2) for Lexus SC 430 2009 List of elements for Instrument Illumination Wiring Diagram (1 of 2) for Lexus SC 430 2009: 77 A/c control assembly (center of dash) A10 Afs ecu (left end of dash) Afs off switch Audio door control switch B19 Bu+ Bu- C j10 C j9 Center j/b (right center of dash) Cigarette lighter Combination switch D10 D18 D20 Driver side j/b (left kick panel) Driver side j/b ecu E10 E15 Electronically controlled transmission pattern select switch Engine room 2 r/b (left side of engine compt) F10 F11 Front controller Gateway ecu (right side of dash) Gnd Gnd1 Gnd2 Hot at all times Hot in on or start Ig (center of dash) Ih (under steering column) Ii (left side dash brace) Ill+ Instrument panel j/b (upper center of dash) J/c j13 (right side of dash) J/c j9 & j10 (top left end of dash) Mpd1 Mpd2 Mpi1 Mpi2 Mpl1 Mpl2 Mpx+ a10 Mpx- a9 Mpx-b3 fuse 7.5a Mpx-ig fuse 7.5a Mpx1 Mpx2 Multi- display Multi- display (w/ navi- gation) Panel fuse 5a Panel1 Panel2 Passenger side j/b (right kick panel) Pnk Radio & player Red Remote control mirror switch Reos Rheostat Seat heater switch (if equipped) Sw1 Sw2 Sw3 Tail Tilt & tele- scopic ecu (left end of dash) Tire pressure warning ecu & receiver (center of dash) Tr+ Tr1 Tr2 Tr3 Transmission control switch Transponder key computer (left side of dash) Tx1 Vsc off switch Instrument Illumination Wiring Diagram (2 of 2) for Lexus SC 430 2009 List of elements for Instrument Illumination Wiring Diagram (2 of 2) for Lexus SC 430 2009: 69 Air bag Air bag sensor assembly (under center console) Bdr Bl (under driver's seat) Bubs Center j/b (right center of dash) Combination meter D-door fuse 25a D-ig fuse 10a D19 D20 Data Dle Driver door ecu (driver's door) Driver side j/b (left kick panel) E14 E16 Engine room 1 r/b (right side of engine compt) F13 F15 F18 Glove box light Gnd Gnd d19 Hot at all times Hot in on or start Ig (center of dash) Ig+ Ih (under steering column) J/c 13 (right side of dash) J/c j17 (left rear of luggage compt) J/c j18 (right rear of luggage compt) J/c j9 & j10 (top left end of dash) J10 L24 Luggage room j/b (left rear of luggage compt) Luggage room j/b ecu Mpx Mpx+ Mpx+b Mpx- Mpx-b2 fuse 7.5a Mpx1 Mpx1 d17 Mpx2 P-door fuse 25a P-gnd P11 Passenger door ecu (front passenger's door) Passenger side j/b (right kick panel) Passenger side j/b ecu Pnk Power seat ecu (driver's seat) (under driver's seat) Power seat ecu (front passenger's seat) (under front passenger's seat) Power window master switch Pwe Pws Rco Rda Red Right door lock control switch Right power window control switch Rss1 Rssi Skid control ecu (left end of dash) Sliding roof control ecu (left rear of luggage compt) Theft deterrent ecu (left end of dash) Wireless door lock control receiver Wls1
MEMORY SYSTEMS Memory Systems Wiring Diagram (1 of 3) for Lexus SC 430 2009 List of elements for Memory Systems Wiring Diagram (1 of 3) for Lexus SC 430 2009: 80 (if equipped) mirror retractor switch (under a2 A/t indicator light switch (on transmission) Bdr Canh Canl Computer data lines system Cpub D-door fuse 25a D-ig fuse 10a D17 D18 D19 De2 Defogger system Dm+r Dmhr Dmvr Driver door ecu (driver's door) Driver side j/b (left kick panel) Driver side j/b ecu Driving position memory switch (driver's seat) Dvc Engine control module (left side of engine compt) Engine room 1 r/b (right side of engine compt) Exterior lights system F11 Gnd Hot at all times Hot in on or start Hssr I15 I17 I19 I22 Ii (left side dash brace) Instrument panel j/b (upper center of dash) Interior lights system J/c j13 (right side of dash) J/c j18 (right rear of luggage compt) J/c j5 (in ecu box) L/r Left remote control mirror Luggage room j/b (left rear of luggage compt) Mirrors system Mpx-b Mpx-b1 fuse 7.5a Mpx-b3 fuse 7.5a Mpx-ig Mpx-ig fuse 7.5a Mpx1 Mpx2 Mr+ Mr- Mry Msw Mswe P-door fuse 25a P11 Passenger door ecu (front passenger's door) Passenger side j/b (right kick panel) Pe2 Pm+r Pmhr Pmvr Pnk Pvc R/e Red Remote control mirror switch Ret Retrac Right remote control mirror Seat) bl Sensor Sig Turn Up/dn m Vssr W/ mirror retractor Memory Systems Wiring Diagram (2 of 3) for Lexus SC 430 2009 List of elements for Memory Systems Wiring Diagram (2 of 3) for Lexus SC 430 2009: 64 (under driver's seat) driver's seat reclining motor (under driver's seat) driver's seat slide motor Bl (under driver's seat) Center j/b (right center of dash) Computer data lines system D p/seat fuse 30a Driver side j/b (left kick panel) Driver's power seat control switch Driver's power seat ecu (under driver's seat) Driver's seat front vertical control sensor (under driver's seat) Driver's seat front vertical motor (under driver's seat) Driver's seat lifter control sensor (under driver's seat) Driver's seat lifter motor (under driver's seat) Driver's seat lumbar support control motor (driver's seat back) Driver's seat lumbar support control switch Driver's seat reclining control sensor (under driver's seat) Driver's seat slide control sensor (under driver's seat) Ecub Ecue Fdwn Frv+ Frv- Fup G10 Gnd Hot at all times Ih (under steering column) Ii (left side dash brace) J/c j19 (under driver's seat) J/c j20 (under driver's seat) J10 Ksw Ldwn Lft+ Lft- Lup Mpx1 Mpx2 P21 P22 Pvcc Rcl+ Rcl- Rclf Rclr Red Sgnd Sld+ Sld- Sldf Sldr Ssfv Ssrr Ssrs Ssrv Sysb Tem+ Tem- Ti & te fuse 15a Tilt & telescopic ecu (left end of dash) Tim+ Tim- Transponder key computer (left side of dash) Unlock warning switch (left side of dash) Memory Systems Wiring Diagram (3 of 3) for Lexus SC 430 2009 List of elements for Memory Systems Wiring Diagram (3 of 3) for Lexus SC 430 2009: 49 Bm (under front passenger's seat) Bm (under passenger's seat) Computer data lines system Fdwn Front passenger's power seat control switch Front passenger's seat front vertical control sensor (under front passenger's seat) Front passenger's seat front vertical motor (under front passenger's seat) Front passenger's seat lifter control sensor (under front passenger's seat) Front passenger's seat lifter motor (under front passenger's seat) Front passenger's seat lumbar support control motor (front passenger's seat back) Front passenger's seat lumbar support control switch Front passenger's seat reclining control sensor (under front passenger's seat) Front passenger's seat reclining motor (under front passenger's seat) Front passenger's seat slide control sensor (under front passenger's seat) Front passenger's seat slide motor (under front passenger's seat) Frv+ Frv- Fup Gnd Hot at all times J/c j21 (under front passenger's seat) J/c j22 (under front passenger's seat) Ldwn Lft+ Lft- Lup Mpx1 Mpx2 P p/seat fuse 30a P23 P24 Passenger side j/b (right kick panel) Passenger's power seat ecu (under front passenger's seat) Pvcc Rcl+ Rcl- Rclf Rclr Red Sgnd Sld+ Sld- Sldf Sldr Ssfv Ssrr Ssrs Ssrv Sysb
NAVIGATION Navigation Wiring Diagram (1 of 2) for Lexus SC 430 2009 List of elements for Navigation Wiring Diagram (1 of 2) for Lexus SC 430 2009: 75 (under steering column) ih Acc Air bag Aui+ Aui- Auo+ Auo- B13 B18 Back Bo (near stereo component amplifier) Center j/b (right center of dash) Computer data lines system D11 D18 D20 Data link connector (dlc) 3 (left side of dash) E10 E11 E17 Engine room 1 r/b (right side of engine compt) G10 Gnd Gnd1 Gps antenna Hot at all times Hot in on or acc Hot in on or start Ig (center of dash) Instrument cluster system Instrument panel j/b (upper center of dash) J/c j12 (right side of dash) J/c j15 (above right rear wheel) J/c j18 (right rear of luggage compt) J/c j9 & j10 (top left end of dash) J10 Left door speaker (squawker & tweeter) Mic+ Mic- Mpx- Mtx+ Mtx- Mut2 N-mu Nav+ Nav- Navi Navigation amplifier (right rear of luggage compt) Navigation ecu (right rear of luggage compt) Navo Nca P-ig fuse 10a Passenger side j/b (right kick panel) Passenger side j/b ecu Pnk Radio 1 fuse 30a Radio 2 fuse 10a Red Rev S23 Snse Sp+ Sp- Spd Stereo component amplifier (right rear of luggage compt) Sync Tdx+ Tdx- Tfl+ Tfl- Tv fuse 5a Tx+ Tx- Voi+ Voi- Navigation Wiring Diagram (2 of 2) for Lexus SC 430 2009 List of elements for Navigation Wiring Diagram (2 of 2) for Lexus SC 430 2009: 63 +b1 Acc Air conditioning system Atx+ Atx- B j9 Center j/b (right center of dash) Close Combination switch Computer data lines system Driver side j/b (left kick panel) E16 E19 Ec (left side of cylinder head) Ecc Engine room 2 r/b (left side of engine compt) F17 Gnd1 Hot in start Ih (under steering column) Interior lights system Ivo+ Ivo- J/c j4 & j5 (in ecu box) J/c j9 & j10 (top left end of dash) J4 b J5 b Macc Maco Mco+ Mco- Mic+ Mic- Microphone (navigation) Microphone amplifier assembly (right kick panel) Min+ Min- Multi-display Navigation door & tilt control Nca Open Open/ close Parking brake switch (left side of dash) Pkb Pnk Radio & player Red Sgnd Sld Spd St1 Starter fuse 7.5a Sync Tail Tilt Tlsw Tsw- Tx+ Tx- Tx1+ Tx1- Txs+ Txs-
PASSIVE RESTRAINTS Passive Restraints Wiring Diagram for Lexus SC 430 2009 List of elements for Passive Restraints Wiring Diagram for Lexus SC 430 2009: 23 A21 Air bag Air bag sensor assembly (under center console) Bkll Bklr Bp (left quarterpanel) Computer data lines system D-ig fuse 10a Dbkl Driver side j/b (left kick panel) Driver side j/b ecu (left kick panel) E11 Hot in on or start J/c j17 (left rear of luggage compt) Left buckle switch (driver's seat belt buckle) Left tension reducer solenoid (base of left "b" pillar) Mpx1 Mpx2 Passenger side j/b (right kick panel) Passenger side j/b ecu Red Right buckle switch (front passenger's seat belt buckle) Right tension reducer solenoid (base of right "b" pillar)
POWER ANTENNA Power Antenna Wiring Diagram for Lexus SC 430 2009 List of elements for Power Antenna Wiring Diagram for Lexus SC 430 2009: 21 Anta Auto antenna control relay (right side of luggage compt) Center j/b (right center of dash) E13 E17 Engine room 1 r/b (right side of engine compt) Hot at all times Hot in acc or on Hot in on or start Instrument panel j/b (upper center of dash) J/c j12 (right side of dash) J/c j15 (above right rear wheel) J/c j18 (right rear of luggage compt) J/c j9 (top left end of dash) P-ig fuse 10a Passenger side j/b (right kick panel) R1 antb R3 ant Radio & player Radio 1 fuse 30a Radio 2 fuse 10a
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 3) for Lexus SC 430 2009 List of elements for Power Distribution Wiring Diagram (1 of 3) for Lexus SC 430 2009: 71 (rear of right fender) ea Abs 1 fuse 60a Abs 2 fuse 40a Acc Air conditioning system Alt fuse 140a Alt-s fuse 5a Am1 Am1 fuse 5a Am2 Am2 fuse 30a Anti-lock brakes system Battery C13 Cooling fans system Cruise control, engine controls & transmissions systems Cruise control, transmissions, engine controls, anti-theft & anti-lock brakes systems D-door fuse 25a D/c cut fuse 15a Driver side j/b (left kick panel) E17 Efi fuse 25a Efi relay Engine controls system Engine room 1 j/b (right side of engine compt) Engine room 1 r/b (right side of engine compartment) Engine room 2 r/b (left side of engine compartment) Etcs fuse 15a Exterior lights, door locks, anti-theft & body computer systems F17 Fan 2 fuse 40a Fan fuse 40a From ignition switch (diagram 1 of 3) H-lp upr fuse 20a Headlamp relay Headlights & body computer systems Heater fuse 50a Horn fuse 10a Horns, door locks, anti-theft & body computer systems Ig1 Ig2 Ig2 fuse 7.5a Ig2 main fuse 20a Ig2 relay Ign fuse 5a Ignition switch Inj fuse 10a Interior lights, defogger, power windows, mirrors, power tops, door locks & anti-theft systems Lock Main fuse 50a Navigation, sound & power antenna systems Off P-door fuse 25a Passenger side j/b (right kick panel) Pnk Radio 1 fuse 30a Short pin 1 Short pin 2 St2 Start Starter fuse 7.5a Starter relay Starting/ charging system Starting/charging & engine controls systems To driver side j/b (diagram 3 of 3) To engine room 2 r/b (diagram 1 of 3) To passenger side j/b (diagram 2 of 3) To rr j/b fuse (diagram 2 of 3) To tail fuse (diagram 3 of 3) Transmissions, engine controls, starting/charging & navigation systems Turn-haz fuse 15a Power Distribution Wiring Diagram (2 of 3) for Lexus SC 430 2009 List of elements for Power Distribution Wiring Diagram (2 of 3) for Lexus SC 430 2009: 80 A/c fuse 5a Acc relay Accy Air conditioning, navigation & instrument cluster systems Bk/up Body computer & exterior lights systems C10 C12 C17 Cig fuse 15a Cigarette lighter Def Defog fuse 30a Defog relay Defogger system Dome fuse 7.5a E13 E16 E17 Engine controls, mirrors, seats, power windows, power tops, door locks, anti-theft, body computer & defogger systems Engine room 1 j/b (right side of engine compt) Engine room 1 r/b (right side of engine compartment) F11 From abs 1 f fuse (diagram 1 of 3) From engine room 1 r/b (diagram 1 of 3) From ignition switch (diagram 1 of 3) Fuel Fuel opn fuse 10a G10 Gnd H-lp cln fuse 30a H-lp lvl fuse 10a Headlights system Headlights, exterior lights, wiper/washer & body computer systems Headlights, interior lights, body computer, mirrors, exterior lights, wiper/washer, memory & trunk, tailgate, fuel doors systems Hic I19 Ig (center of dash) Ig1 relay Ii (left side dash brace) Interior lights system Interior lights systems J/c j11 (center of dash) L o/c (p) Lce-lp fuse 7.5a Lgg lh fuse 20a Lgg rh fuse 20a Luggage room j/b (left rear of luggage compartment) Luggage room j/b ecu Mpx-b1 fuse 7.5a Mpx-b2 fuse 7.5a Mpx-b3 fuse 7.5a Navigation system Opn(p) P p/seat fuse 30a P-ig fuse 10a P-tray fuse 20a Passenger mpx-b side j/b ecu Passenger side j/b (right kick panel) Passenger side j/b ecu Pnk Power tops system Radio 2 fuse 10a Red Roof lh fuse 20a Roof rh fuse 20a Rr j/b fuse 50a Seat htr fuse 20a Seats system Stop 1 Stop 2 Tail 1 Tail 2 To driver side j/b (diagram 3 of 3) Trunk, tailgate, fuel doors, body computer, sound, defogger, anti-theft, door locks & Tv fuse 5a Warning, navigation, seats, shift interlock, mirrors & power antenna systems Washer fuse 20a Wiper/ washer system Wiper/washer system Power Distribution Wiring Diagram (3 of 3) for Lexus SC 430 2009 List of elements for Power Distribution Wiring Diagram (3 of 3) for Lexus SC 430 2009: 61 Abs-ig fuse 7.5a Acc relay Accy Air conditioning system Air conditioning, headlights, navigation, interior lights, mirrors, defogger, body computer, memory, power tops, exterior lights, anti-theft, door locks, wiper/washer & power windows systems Anti-lock brakes & headlights systems Anti-lock brakes system Body computer & wiper/washer systems Body computer system Body computer, door locks, power windows & anti-theft systems C11 C16 Computer data lines, air conditioning & cooling fans systems Cruise control & transmissions systems Cruise control, engine controls, transmissions, body computer, shift interlock, exterior lights & anti-lock brakes systems D p/seat fuse 30a D-ig fuse 10a Driver side j/b (left kick panel) Driver side j/b ecu E10 E11 Exterior lights, starting/charging, cruise control, mirrors, wiper/washer, power tops & transmissions systems F11 F16 F17 Fr fog fuse 15a From fuse am1 (diagram 1 of 3) From ignition switch (diagram 1 of 3) From passenger side j/b (diagram 2 of 3) G10 Gnd Headlights & body computer systems Headlights, exterior lights, door locks, anti-theft & body computer systems Heater fuse 10a Horns, body computer & sound systems I15 I16 I17 Ig1 relay Ii (left side dash brace) J10 Memory systems Mpx-ig Mpx-ig fuse 7.5a Obd fuse 7.5a Panel fuse 5a Panel1 Passive restraints & body computer systems Pnk Power outlet Power windows, power tops, mirrors, defogger, body computer, anti-theft & door locks systems Pwr outlet fuse 15a Red Seats & memory systems Seats system Security fuse 7.5a Stop fuse 5a Tail fuse 7.5a Ti & te fuse 15a Wiper fuse 30a Wiper/washer, exterior lights, body computer & headlights systems
POWER DOOR LOCKS Power Door Locks Wiring Diagram (1 of 2) for Lexus SC 430 2009 List of elements for Power Door Locks Wiring Diagram (1 of 2) for Lexus SC 430 2009: 71 (right rear of luggage compt) j/c j18 (right side of dash) junction connector j13 Bdr Bl (under driver's seat) C16 Computer data lines system Cpse Cpub Cty D-door fuse 25a D17 D18 D19 Dle Driver door ecu (driver's door) Driver side j/b (left kick panel) E17 E18 Engine room 1 r/b (right side of engine compt) F11 F17 Gnd Hot at all times Hot in on or acc Hot in on or start I15 I21 Ill Instrument panel j/b (upper center of dash) Kul L22 L24 Lcm+ Lct Lcte Lcty Left door courtesy switch Left door lock motor, door key lock & unlock switch, & door unlock detection switch Lsw Luggage compartment door lock motor & detection switch (luggage compt lock assembly) Luggage room j/b (left rear of luggage compt) Luggage room j/b ecu (left rear of luggage compt) Mpx+ Mpx- Mpx-b1 fuse 7.5a Mpx-ig fuse 7.5a Mpx1 Mpx2 Mul P-door fuse 25a P10 P11 Passenger door ecu (front passenger's door) Passenger side j/b (right kick panel) Pnk Power window master switch Pwe Pws Radio 2 fuse 10a Red Right door courtesy switch Right door lock control switch Right door lock motor & door unlock detection switch S17 S18 Security fuse 7.5a Sig Sliding roof control ecu (left rear of luggage compt) Tail fuse 7.5a Wls1 Wlsw Power Door Locks Wiring Diagram (2 of 2) for Lexus SC 430 2009 List of elements for Power Door Locks Wiring Diagram (2 of 2) for Lexus SC 430 2009: 93 (16-19 not used) (25-28 not used) (34-40 not used) (6-12 not used) (front center of engine compt) engine hood courtesy switch (left kick panel) driver side j/b (left side dash brace) ii (left side of dash) transponder key computer (under steering column) ih +b2 Acc Agnd Air bag Ant1 Ant2 B11 B20 Buzzer Bzr Bzr2 Canh Canl Center j/b (right center of dash) Cncl Code Computer data lines system Cpub Cra relay D19 Data Driver side j/b (left kick panel) Driver side j/b ecu (left kick panel) Ed (rear of left fender) Efii Efio Engine control module (left side of engine compt) Engine room 1 r/b (right side of engine compt) Engine room 2 r/b (left side of engine compt) Exterior lights system F17 Front controller Gnd Haz Hdcy Head lp relay Headlights system Horn fuse 10a Horn relay Horn-rly Horns system Hot at all times Hot in on or start Hrly Ig2 Ign fuse 5a Ih (under steering column) Ile Imi Imo Ind Inner mirror Interior lights system J10 Junction connector j2 (engine room 2 r/b) Junction connector j3 (in engine room 2 r/b) Junction connector j9 & j10 (top left end of dash) Ksw Main fuse 50a Main luggage compartment door opener switch Mpx- Mpx1 Mpx2 Passenger side j/b (right kick panel) Passenger side j/b ecu (right kick panel) Pnk Rco Rda Red Rssi Rxck Security indicator light & headlight cleaner switch Sh- Tail-rly Theft deterrent ecu (left end of dash) Theft deterrent horn (right front of engine compt) Transponder key amplifier (behind left side of dash) Transponder key coil Turn- haz fuse 15a Txct Unlock warning switch (left side of dash) Vc12 Wireless door lock buzzer (left rear of engine compt) Wireless door lock control receiver
POWER MIRRORS Power Mirrors Wiring Diagram for Lexus SC 430 2009 List of elements for Power Mirrors Wiring Diagram for Lexus SC 430 2009: 30 Center j/b (right center of dash) D19 D20 Data Door locks system Driver door ecu (driver's door) Ec mirror Ec+ Ec- Eci+ Eci- F14 F16 Gnd Hot in on or start I12 Ig (center of dash) Ih (under steering column) Inner mirror J10 Junction connector j9 & j10 (top left end of dash) Left remote control mirror P-ig fuse 10a P11 Passenger door ecu (front passenger's door) Passenger side j/b (right kick panel) Pnk Red Right remote control mirror Rssi
POWER SEATS Power Seats Wiring Diagram for Lexus SC 430 2009 List of elements for Power Seats Wiring Diagram for Lexus SC 430 2009: 25 B14 Bl (under driver's seat) Bm (under front passenger's seat) Center j/b (right center of dash) D20 Driver's seat heater controller (under driver's seat) Hot in on or start Ig (center of dash) Ih (under steering column) Ill Interior lights system J/c j20 (under driver's seat) J/c j21 (under front passenger's seat) P-ig fuse 10a Passenger side j/b (right kick panel) Passenger's seat heater controller (under passenger's seat) Red Rvl Rvr Seat heater switch Seat htr fuse 20a Swl Swr Thl Thr
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram (1 of 2) for Lexus SC 430 2009 List of elements for Power Top/Sunroof Wiring Diagram (1 of 2) for Lexus SC 430 2009: 81 Blgl Blgr Bpt Brfl Brfr C10 red Cls Computer data lines system Cpub Hot at all times J/c j17 (left rear of luggage compartment) L22 L24 Lct Lcte Lcty Left quarter power window motor (front of left quarterpanel) Lfl+ Lfl- Lfr+ Lfr- Lgg lh fuse 20a Lgg rh fuse 20a Limit switch (left luggage front lock) (left rear side of luggage compt) Limit switch (package tray 1) (left side of package tray) Limit switch (roof close, left) (left side of roof) Limit switch (roof close, right) (right side of roof) Limit switch (roof lock) (left side of roof) Limit switch (roof position 3) (above right rear wheel) Limit switch (tonneau cover) (front of luggage compartment) Lll Llle Lml+ Lml- Lpl Lplb Lple Luggage compartment door closer motor (left) (left side of luggage compt) Luggage compartment door closer motor (right) (right side of luggage compt) Luggage compartment door lock motor & detection switch (luggage compt lock assembly) Luggage room j/b (left rear of luggage compt) Luggage room j/b ecu (left rear of luggage compt) Mpx+ Mpx- Open P-tray fuse 20a Package tray motor (under center of package tray) Pnk Ptm+ Ptm- Ptp1 Ptp2 Ptpe Qwl+ Qwl- Rcl Rcle Rcr Rcre Red Rhl Rhle Rll Rlle Rlm+ Rlm- Rml+ Rml- Roof lh fuse 20a Roof lock motor (front of roof) Roof rh fuse 20a Rpl Rplb Rple S17 S19 S21 Sliding roof control ecu (left rear of luggage compt) Swe Tcs Tcse Power Top/Sunroof Wiring Diagram (2 of 2) for Lexus SC 430 2009 List of elements for Power Top/Sunroof Wiring Diagram (2 of 2) for Lexus SC 430 2009: 63 (above right rear wheel) limit switch (package tray 2) (forward of left rear wheel) limit switch (roof position 1 & 2) (rear center of vehicle) limit switch (roof open) (right rear side of luggage compt) limit switch (right luggage front lock) A/c control assembly (center of dash) A10 Bm (under front passenger's seat) Cls Computer data lines system Driver side j/b (left kick panel) Gnd Hot at all times Hot in on or start I20 Ign Ih (under steering column) Instrument panel j/b (upper center of dash) J/c j13 (right side of dash) J/c j18 (right rear of luggage compartment) Lcr Lcre Left luggage compartment door drive motor (left side of luggage compt) Left roof drive motor (base of left "c" pillar) Limit switch (luggage compartment door open & close) Llr Llre Lmr+ Lmr- Lor Lpr Lprb Lpre Mpx+ Mpx- Mpx-b1 fuse 7.5a Mpx-ig fuse 7.5a Mpx1 Mpx2 Open Passenger side j/b (right kick panel) Pnk Qwr+ Qwr- Red Rhr1 Rhr2 Rhre Right luggage compartment door drive motor (right side of luggage compt) Right quarter power window motor (front of right quarterpanel) Right roof drive motor (base of right "c" pillar) Rmr+ Rmr- Ror Rore Rpr Rprb Rpre S18 S20 Sgnd Sig Sliding roof control ecu (left rear of luggage compt) Swe
POWER WINDOWS Power Windows Wiring Diagram for Lexus SC 430 2009 List of elements for Power Windows Wiring Diagram for Lexus SC 430 2009: 88 (left kick panel) driver side j/b (under steering column) (upper center of dash) instrument panel j/b +b1 +b2 Acc Auto Bdr Bl (under driver's seat) Bzr Bzr2 Center j/b (right center of dash) Computer data lines system Cpse Cpub Cty D-door fuse 25a D17 D18 D19 Ddn Dn auto Dn man Driver door ecu (driver's door) Dt1 Dup E17 E18 Engine room 1 r/b (right side of engine compt) F11 F17 Gnd Hot at all times Hot in on or acc Hot in on or start I15 I21 Inner mirror J10 J9 f Junction connector 13 (right side of dash) Junction connector 18 (right rear of luggage compartment) Junction connector 9 & 10 (top left end of dash) Kul Left door courtesy switch Left door lock motor, door key lock & unlock switch & door unlock detection switch (driver's door) Left power window motor (left door) Lmt Luggage room j/b (left rear of luggage compt) Mdn Mpx Mpx-b1 fuse 7.5a Mpx-ig fuse 7.5a Mpx1 Mpx2 Mul Mup P-door fuse 25a P11 Passenger door ecu (front passenger's door) Passenger side j/b (right kick panel) Pct Pls Power window master switch Pwe Pws Radio 2 fuse 10a Rco Rda Red Right door courtesy switch Right power window control switch Right power window motor (front passenger's door) Rssi Sc1 Sc2 Sc3 Security fuse 7.5a Sgnd Sig Theft deterrent ecu (left end of dash) Up auto Up man W/l Wireless door lock buzzer (left rear of engine compt) Wireless door lock control receiver Wls1 Wlsw
RADIO Radio Wiring Diagram (1 of 2) for Lexus SC 430 2009 List of elements for Radio Wiring Diagram (1 of 2) for Lexus SC 430 2009: 67 (top left end of dash) j/c j9 & j10 (under steering column) ih Acc Ant Anta Antb Antenna Atx+ Atx- Audio door control switch Auo+ Auo- B13 Center j/b (right center of dash) Combination meter D-ig fuse 10a D20 Dome fuse 7.5a Dos1 Driver side j/b (left kick panel) E10 E13 E16 E17 Engine room 1 r/b (right side of engine compt) F14 F15 Gateway ecu (right side of dash) Gnd Gtx+ Gtx- Hot at all times Hot in acc or on Hot in on or start Ig (center of dash) Ig+ Ih (under steering column) Ij (right side dash brace) Ill Instrument panel j/b (upper center of dash) Interior lights system J/c j12 (right side of dash) J/c j13 (right side of dash) J10 Mpx+b Mpx-b2 fuse 7.5a Multi- display Multi-display Mut2 Mute Navigation ecu (if equipped) (right rear of luggage compt) Nca Passenger side j/b (right kick panel) Pnk Power antenna system Radio & player Radio 1 fuse 30a Radio 2 fuse 10a Red Sgnd Tx+ Tx- Tx1+ Tx1- Txs+ Txs- W/ navigation Radio Wiring Diagram (2 of 2) for Lexus SC 430 2009 List of elements for Radio Wiring Diagram (2 of 2) for Lexus SC 430 2009: 50 (above right rear wheel) j/c j15 (rear center of luggage compt) short connector (navigation amplifier) Acc Aui+ Aui- Bo (near stereo component amplifier) Fl+ Fl- Fr+ Fr- Gnd Left door speaker (squawker & tweeter) Left front woofer Left rear speaker Mtx+ Mtx- Mute N-mu Nav+ Nav- Navi Navigation amplifier (if equipped) (right rear of luggage compt) Navo Pnk Rear woofer Red Right door speaker (squawker & tweeter) Right front woofer Right rear speaker Rl+ Rl- Rr+ Rr- S22 S23 S28 Sp+ Sp- Spd Stereo component amplifier (right rear of luggage compt) Tdx+ Tdx- Tfl+ Tfl- Tfr+ Tfr- W/ navigation W/o navigation Wf+ Wf-
SHIFT INTERLOCK Shift Interlock Wiring Diagram for Lexus SC 430 2009 List of elements for Shift Interlock Wiring Diagram for Lexus SC 430 2009: 36 A/t indicator light switch (on transmission) Acc B10 Canh Canl Center j/b (right center of dash) Computer data lines system D-ig fuse 10a D16 D20 Driver side j/b (left kick panel) Driver side j/b ecu (left kick panel) E17 Engine control module (left side of engine compt) F10 Hot at all times Hot w/ acc relay energized Hot w/ ig 1 relay energized Hot w/ ig1 relay energized Ig (center of dash) Ih (under steering column) Instrument panel j/b (upper center of dash) J/c j5 (in ecu box) Key interlock solenoid (left side of dash) Kls+ Mpx1 Mpx2 P-ig fuse 10a Passenger side j/b (right kick panel) Radio 2 fuse 10a Red Shift lock control ecu (under center console) Stop fuse 5a Stop light switch (left side of dash) Stp Stpi
STARTING/CHARGING Charging Wiring Diagram for Lexus SC 430 2009 List of elements for Charging Wiring Diagram for Lexus SC 430 2009: 23 (right side of engine compt) engine room 1 j/b (right side of engine compt) engine room 1 r/b Alt fuse 140a Alt-s fuse 5a Battery Canh Canl Charge indicator Combination meter Computer data lines system D-ig fuse 10a Driver side j/b (left kick panel) Engine control module (left side of engine compt) F15 Generator Hot w/ ig 1 relay energized Ig+ Ih (under steering column) Junction connector (in ecu box) Mpx+ Passenger side j/b (right kick panel) Red Starter Starting Wiring Diagram for Lexus SC 430 2009 List of elements for Starting Wiring Diagram for Lexus SC 430 2009: 23 Acc Am2 Am2 fuse 30a Battery Ed (rear of left fender) Engine control module (left side of engine compt) Engine room 1 j/b (right side of engine compt) Engine room 1 r/b (right side of engine compt) Engine room 2 r/b (left side of engine compt) Ignition switch Junction connector (left side of engine compt) Junction connector 3 (in engine room 2 r/b) Lock Off Park/neutral position switch (on transmission) Short pin 1 Short pin 2 St2 Sta Start Starter Starter fuse 7.5a Starter relay
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram (1 of 3) for Lexus SC 430 2009 List of elements for Supplemental Restraints Wiring Diagram (1 of 3) for Lexus SC 430 2009: 65 (base of left "b" pillar) pretensioner (left) (left door) door side air bag sensor (left) (left side of driver's seat) side air bag squib (left) (right side of front passenger's seat) side air bag squib (right) +sl +sr -sl -sr A20 A21 A22 Air bag sensor assembly (center of dash) Air bag squib (front passenger air bag assembly) (right side of dash) Air bag squib (steering wheel pad) (center of steering wheel) Buckle switch Buckle switch (left) (driver's seat belt buckle) D2+ D2- Dk+ Dk- Door side air bag sensor (right) (front passenger's door) Escl Escr Esl Esr F17 Fsr+ Fsr- Hot in on or start Ig2 Ig2 fuse 7.5a Knee air bag squib (driver) (driver's lower side of dash) Knee air bag squib (front passenger) (front passenger's lower side of dash) Lbe+ Lbe- Lsp+ Lsp- Mpx1 Mpx2 P-ab P2+ P2- Paon Passenger side j/b (right kick panel) Pk+ Pk- Pl+ Pl- Pnk Pr+ Pr- Pretensioner (right) (base of right "b" pillar) Red Seat position air bag sensor Sfl+ Sfl- Sfr+ Sfr- Side air bag sensor (left) (forward of left rear wheels) Side air bag sensor (right) (forward of right rear wheels) Sil Vucl Vucr Vupl Vupr Supplemental Restraints Wiring Diagram (2 of 3) for Lexus SC 430 2009 List of elements for Supplemental Restraints Wiring Diagram (2 of 3) for Lexus SC 430 2009: 61 (center of dash) a/c control assembly (left side dash brace) ii (right kick panel) passenger side j/b (top left end of dash) j/c j9 & j10 (under steering column) ih A10 Acan Afs ecu (left end of dash) Air bag Air bag sensor (left front) (left front of engine compt) Air bag sensor (right front) (right front of engine compt) Buckle switch (left) (driver's seat belt buckle) Ca1h Ca1l Center j/b (right center of dash) Combination meter D-ig fuse 10a D19 D20 Data link connector (dlc) 3 (left side of dash) Dbkl Driver side j/b (left kick panel) E16 E17 F13 F15 Gateway ecu (right side of dash) Gnd Hot at all times Hot in on or acc Hot in on or start Ig (center of dash) Ig+ Instrument panel j/b (upper center of dash) J/c j13 (right side of dash) J/c j18 (right rear of luggage compt) J/c j9 & j10 (top left end of dash) J10 Mpd1 Mpd2 Mpi1 Mpi2 Mpl1 Mpl2 Mpx+ Mpx+b Mpx- Mpx-b2 fuse 7.5a Mpx1 Mpx2 P-ab Paon Passenger side j/b (right kick panel) Passenger side j/b ecu Radio 2 fuse 10a Red Sil Skid control ecu (left end of dash) Srs ind Telltale light assembly Tire pressure warning ecu & receiver (center of dash) Supplemental Restraints Wiring Diagram (3 of 3) for Lexus SC 430 2009 List of elements for Supplemental Restraints Wiring Diagram (3 of 3) for Lexus SC 430 2009: 48 (left end of dash) tilt & telescopic ecu (left rear of luggage compt) luggage room j/b ecu (left side of engine compt) engine control module Bgnd Bsw Can h Can l Combination switch D17 Dia Driver door ecu (driver's door) E10 Engine room 2 r/b (left side of engine compt) F18 Front controller Fsr+ Fsr- Gbt Gnd Gps J/c j18 (right rear of luggage compartment) J/c j25 (right side of dash) L24 Mpx + Mpx - Mpx 1 Mpx 2 Mpx1 Mpx2 Occupant classification ecu (under front passenger's seat) Occupant classification sensor (under front passenger's seat) P21 P23 Passenger door ecu (front passenger's door) Passenger side j/b (right kick panel) Pnk Power seat ecu (driver's seat) (under driver's seat) Power seat ecu (front passenger's seat) (under front passenger's seat) Red Right buckle switch (front passenger's seat belt buckle) S18 Seat belt tension sensor (base of right "b" pillar) Sliding roof control ecu (left rear of luggage compt) T13 Theft deterrent ecu (left end of dash) Transponder key ecu Vbt Vps
TRANSMISSION Transmission Wiring Diagram (1 of 2) for Lexus SC 430 2009 List of elements for Transmission Wiring Diagram (1 of 2) for Lexus SC 430 2009: 74 (right center of dash) +b1 +bm Accelerator pedal position sensor (left center of dash) B16 Batt Canh Canl Center j/b Center j/b (right center of dash) Circuit Combination meter Computer data lines system Crankshaft position sensor (left front of engine) D-ig fuse 10a D17 Data link connector (dlc) 3 (left side of dash) Driver side j/b (left kick panel) Driver side j/b ecu (left kick panel) Ect pwr ind Ect snow ind Ed (rear of left fender) Efi fuse 25a Efi relay Electronically controlled transmission pattern select switch Engine control module (left side of engine compt) Engine room 1 r/b (right side of engine compt) Engine room 2 r/b (left side of engine compt) Epa Epa2 Etcs fuse 15a F15 Hot at all times Hot in on or start I16 Ig+ Ign fuse 5a Igsw Ih (under steering column) Interior lights system J/c j2 (engine room 2 r/b) J/c j23 & j24 (left side of engine compt) J/c j3 (engine room 2 r/b) J/c j4 & j5 (in ecu box) J/c j5 (in ecu box) J23 J24 Mil ind Mpx+b Mpx- Mrel Nca Nca d Ne+ Ne- Passenger side j/b (right kick panel) Passenger side j/b ecu (right kick panel) Pnk Pwr Red Snow Speedometer Stop fuse 5a Stop light switch (left side of dash) Stp Stpi Stpo Tac Tach Tachometer Vcp2 Vcpa Vpa Vpa2 Transmission Wiring Diagram (2 of 2) for Lexus SC 430 2009 List of elements for Transmission Wiring Diagram (2 of 2) for Lexus SC 430 2009: 45 (in transmission) electronically controlled transmission solenoid (on transmission) a/t indicator light switch Center j/b (right center of dash) D20 E01 E02 E03 Eb (right side of cylinder head) Ec (left side of cylinder head) Engine control module (left side of engine compt) Engine coolant temperature sensor (top right side of engine) Eoil F16 Ge01 Ig (center of dash) Interior lights system J/c j23 (left side of engine compt) J/c j4 (in ecu box) Me01 Nca Nt+ Nt- Oil Pnk Red Sftd Sftu Sl1+ Sl1- Sl2+ Sl2- Slt+ Slt- Slu+ Slu- Sp2+ Sp2- Throttle body assembly (top center of engine) Thw Transmission control switch Turbine speed sensor (on transmission) Vehicle speed sensor (electronically controlled transmission) (on transmission) Vta Vta1 Vta2
TRUNK, TAILGATE, FUEL DOOR Fuel Door Release Wiring Diagram for Lexus SC 430 2009 List of elements for Fuel Door Release Wiring Diagram for Lexus SC 430 2009: 28 (right side of dash) j/c 13 Bl (under driver's seat) Computer data lines system Driver side j/b (left kick panel) Driver side j/b ecu E20 Fuel Fuel lid opener motor (left side of luggage compt) Fuel lid opener switch Fuel opn (0) Fuel opn (p) Fuel opn fuse 10a Gnd Hot at all times Ii (left side dash brace) J/c j17 (left rear of luggage compartment) L24 Luggage room j/b (left rear of luggage compt) Luggage room j/b ecu Mpx+ Mpx- Mpx-b Mpx-b3 fuse 7.5a Mpx1 Mpx2 P-gnd Passenger side j/b (right kick panel) Red Trunk Release & Pull Down Wiring Diagram for Lexus SC 430 2009 List of elements for Trunk Release & Pull Down Wiring Diagram for Lexus SC 430 2009: 41 (right side of dash) j/c j13 B20 Bl (under driver's seat) Center j/b (right center of dash) Cncl Computer data lines system D20 Driver side j/b (left kick panel) Driver side j/b ecu E12 F17 Fuel opn fuse 10a Gnd Hot at all times Ig (center of dash) Ih (under steering column) Ii (on left side dash brace) J/c j17 (left rear of luggage compartment) L-o/c (p) L22 L24 Lcm+ Lct Lcte Lcty Luggage compartment door lock motor & detection switch (luggage compt lock assembly) Luggage compartment door opener main switch Luggage compartment door opener switch Luggage room j/b (left rear of luggage compt) Luggage room j/b ecu Mpx+ Mpx- Mpx-b Mpx-b3 fuse 7.5a Mpx1 Mpx2 P-gnd Passenger side j/b (right kick panel) Red Sliding roof control ecu (left rear of luggage compt) Tsw
WARNING SYSTEMS Seat Belt Warning Wiring Diagram for Lexus SC 430 2009 List of elements for Seat Belt Warning Wiring Diagram for Lexus SC 430 2009: 59 A21 A22 Airbag sensor assembly (under center console) Bgnd Bsw Buckle switch Buzzer Center j/b (right center of dash) Combination meter Computer data lines system Cty D-ig fuse 10a D17 Dbkl Driver door ecu (driver's door) Driver side j/b (left kick panel) Driver side j/b ecu (left kick panel) E16 F15 Front passenger seat belt warning light Fsr+ Fsr- Gateway ecu (right side of dash) Hot at all times Hot in acc or on Hot in on or start Ig+ Ih (under steering column) J/c j13 (right side of dash) J/c j17 (left rear of luggage compt) Ksw Lapb Left buckle switch (driver's seat belt buckle) Left door courtesy switch Mpd1 Mpd2 Mpi1 Mpi2 Mpl1 Mpl2 Mpx+ Mpx+b Mpx- Mpx-b2 fuse 7.5a Mpx1 Mpx2 Occupant classification ecu (under front passenger's seat) Open door ind P-ig fuse 10a Passenger side j/b (right kick panel) Pbew Pblt Red Right buckle switch (front passenger's seat belt buckle) Seat belt ind Speedometer Telltale light assembly Transponder key computer (left side of dash) Unlock warning switch (left side of dash) Tire Pressure Monitoring Wiring Diagram for Lexus SC 430 2009 List of elements for Tire Pressure Monitoring Wiring Diagram for Lexus SC 430 2009: 46 Ant B21 B22 Buzzer Center j/b (right center of dash) Clsw Combination meter Computer data lines system D-ig fuse 10a D19 D20 Driver side j/b (left kick panel) E16 F15 F17 Gnd Hot at all times Hot in on or start Idsw Ig (center of dash) Ig+ Ih (under steering column) J/c j13 (right side of dash) J/c j9 & j10 (top left end of dash) J10 Left front tire pressure warning antenna (left front wheelwell) Left rear tire pressure warning antenna (left rear wheelwell) Mpx+ Mpx+b Mpx- Mpx-b2 fuse 7.5a Mpx1 Mpx2 Nca P-ig fuse 10a Passenger side j/b (right kick panel) Pnk Right front tire pressure warning antenna (right front wheelwell) Right rear tire pressure warning antenna (right rear wheelwell) Skid control ecu (left end of dash) Sp1 T10 Tire pressure ind Tire pressure warning ecu & receiver (center of dash) Tire pressure warning reset switch Tire pressure warning select switch
WIPER/WASHER Front Wiper/Washer Wiring Diagram for Lexus SC 430 2009 List of elements for Front Wiper/Washer Wiring Diagram for Lexus SC 430 2009: 35 Air bag C11 Combination meter Combination switch Computer data lines system D-ig fuse 10a Driver side j/b (left kick panel) Ed (rear of left fender) Engine room 2 r/b (left side of engine compt) Front controller Front wiper motor (left side of firewall) Headlamp washer circuit Hot at all times Hot in on or start Ig+ J/c j3 (engine room 2 r/b) J/c j8 (left end of dash) Mpx+ Mpx- Mpx1 Mpx2 Passenger side j/b (right kick panel) Passenger side j/b ecu (right kick panel) Red S/m S/s Wash relay Washer fuse 20a Washer ind Washer level sensor (left front of engine compartment) Washer motor (left front of engine compartment) Wip Wiper fuse 30a Wsh-rly Wslv Headlamp Washer Wiring Diagram for Lexus SC 430 2009 List of elements for Headlamp Washer Wiring Diagram for Lexus SC 430 2009: 32 Bu+ C11 Combination switch Computer data lines system D-ig fuse 10a Driver side j/b (left kick panel) Driver side j/b ecu (left kick panel) Ed (rear of left fender) Engine room 1 r/b (right side of engine compt) Engine room 2 r/b (left side of engine compt) Front controller Front wiper/ washer circuit Frwa H-lp cln fuse 30a Hdcl Hdlo Head Headlight cleaner control relay (left front of engine compt) Headlight cleaner motor (behind left headlight assembly) Headlight cleaner switch & security indicator light Hot at all times Hot in on or start J/c j3 (engine room 2 r/b) J/c j5 (in ecu box) Mpx1 Mpx2 Passenger side j/b (right kick panel) Red Tx1 Wash relay Washer fuse 20a Wsh-rly
