Lexus SC II (2001-2005) blk/yel Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 SRLR 1 2 3 VCM PMC 19 29 30 9 18 ENG+ TRC- ENG- NEO TRC+ ABS 1 FUSE ABS 2 FUSE ABS MTR RELAY ABS SOL RELAY BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE ACTUATOR BRAKE FLUID LEVEL WARNING SWITCH (IN BRAKE FLUID RESERVOIR) BRN WIRE EE (REAR OF LEFT FENDER) ENG+ LBL LBL TRC- SOL+ ENG- NEO TRC+ SOL- ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) ENGINE ROOM 1 R/B (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) ENGINE ROOM 2 R/B (ON LEFT SIDE OF ENGINE COMPT, FORWARD OF STRUT TOWER) FR- FR+ FL- FL+ FSS GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES IF (AT LEFT KICK PANEL) JUNCTION CONNECTOR 8 (BEHIND LEFT END OF DASH) LT GRN WIRE MASTER CYLINDER PRESSURE SENSOR (AT LEFT REAR CORNER OF ENGINE COMPT) MT- SR MTT MT+ NCA WIRE PNK WIRE PPS SOLENOID (AT RIGHT FRONT OF ENGINE) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE SFLH PMC SFLR SRRH SRRR VCM PH SFRH SRLH AST SFRR PL SHORT PIN 3 SKID CONTROL ECU (BEHIND LEFT END OF DASH) STR+ TRC MOTOR RELAY VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 REOS TELIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 IG A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) A/C ROOM TEMPERATURE SENSOR (BEHIND CENTER OF DASH) A/C THERMISTOR (BEHIND CENTER OF DASH) AIF AOF AMHPA AMHDR SG-4 AIR AOD AMCPA AMCDR BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER MOTOR (BEHIND LOWER RIGHT SIDE OF DASH) BLOWER MOTOR CONTROLLER (BEHIND RIGHT SIDE OF DASH) SI +B GND M+ M- BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DGS TSPA TR TPDR DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ENGINE ROOM 1 R/B (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) EXHAUST GAS SENSOR (AT LEFT FRONT OF ENGINE COMPT) FAN FUSE FAN-2 FUSE GAS GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HAZD SG-1 TSDR TE SG-2 HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START IH (UNDER STEERING COLUMN) INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 14 (BEHIND RIGHT SIDE OF DASH) LT GRN WIRE LT GRN/BLK WIRE MPX+ GND MPX-IG FUSE MULTI-DISPLAY OPEN CLS SWE BLW OPN ORG/ WIRE PNK EMOP WIRE PNK WIRE POWER TOPS SYSTEM RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SG-3 TELEPHONE COMPUTER (CENTER REAR OF LUGGAGE COMPARTMENT) TILT TPO TPPA MPX- TSL TSR VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

1 3 VZ GND 3 1 VZ (GND) GND (VZ) 3 1 VZ GND A/C AMBIENT TEMPERATURE SENSOR (AT CENTER OF FRONT BUMPER, BEHIND GRILLE) A/C COMP RELAY A/C FUSE A/C MAGNETIC CLUTCH, LOCK SENSOR (ON A/C COMPRESSOR) ACMG AIR BAG AIR INLET CONTROL SERVO MOTOR (BEHIND RIGHT SIDE OF DASH) AIR MIX CONTROL SERVO MOTOR (DRIVER SIDE) (BEHIND LEFT CENTER SIDE OF DASH) AIR MIX CONTROL SERVO MOTOR (PASSENGER SIDE) (BEHIND RIGHT CENTER SIDE OF DASH) AIR VENT MODE SERVO MOTOR (BEHIND CENTER OF DASH) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) EC (LEFT SIDE OF CYLINDER ED (REAR OF LEFT FENDER) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) ETAM FAN RELAY GND(S) GND(M) GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HEAD HOT AT ALL TIMES HOT IN ACC OR ON HTR RELAY IF (AT LEFT KICK PANEL) II (ON LEFT SIDE DASH BRACE) JUNCTION CONNECTOR 14 JUNCTION CONNECTOR 3 (IN ENGINE ROOM 2 R/B) JUNCTION CONNECTOR 7 (IN ECU BOX) JUNCTION CONNECTOR 8 (BEHIND LEFT END OF DASH) LCKI MCOOL MHOT MPOS 1 MPOS 2 MPOS 6 MPX ORG/ WIRE PASSENGER SIDE J/B PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PRE RADIO 2 FUSE RED WIRE RED/BLK WIRE RED/WHT WIRE RFC TAM VIO WIRE VZ (GND) GND (VZ) WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE

12 4 TS D/G 16 22 3 TACH WFSE TC AIR BAG SENSOR ASSEMBLY (AT CENTER OF DASH, BELOW RADIO) BLK GRN/ LT WIRE BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BRN WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) CG SG COMBINATION METER DATA LINK CONNECTOR (DLC) 3 (BEHIND LEFT SIDE OF DASH) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) EC (LEFT SIDE OF CYLINDER HEAD) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) HOT AT ALL TIMES J/C 13 (BEHIND RIGHT SIDE OF DASH) J/C 4, 5 (IN ECU BOX) J/C 7 (IN ECU BOX) J/C 9, 10 (BEHIND TOP LEFT END OF DASH) LT GRN/BLK WIRE MULTI-DISPLAY OBD FUSE PNK/BLK WIRE SIL SKID CONTROL ECU (BEHIND LEFT END OF DASH) TAC TC TS WFSE BAT WFSE WHT WIRE WHT/BLK WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 TC CLTB BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM ANTI-THEFT SYSTEM COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM HEADLIGHTS SYSTEM DBKL BKLR DBIL DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B ECU ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM ENGINE ROOM 1 R/B (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) EXTERIOR LIGHTS SYSTEM ANTI-LOCK BRAKES SYSTEM SHIFT INTERLOCK SYSTEM FUEL TSW FUSE GRN WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HAZ STPA STP MPX-B HDCY HDLO HRLY HEAD HOT AT ALL TIMES HOT IN RUN OR START IG (LEFT SIDE OF STEERING COLUMN) IGNITION SWITCH II (ON LEFT SIDE DASH BRACE) INTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM JUNCTION CONNECTOR 13 (BEHIND RIGHT SIDE OF DASH) LOCK LT GRN WIRE MPX-IG FUSE MPX-IG HAZ IG 2 3 4 5 6 7 8 9 10 PANEL FUSE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PNK WIRE PNK/BLU WIRE R/E RET CNCL MSW M+ TR+ CLTS CLTE RV HDCL RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RUN WIRE STPO STPI TURN LH GND TURN RH TURN, HAZ FUSE VIO WIRE VIO/WHT WIRE WARNING SYSTEM PASSIVE RESTRAINT SYSTEM WARNING SYSTEM WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE WIPER/WASHER SYSTEM HEADLIGHTS SYSTEM YEL WIRE

14 21 16 22 SOL+ SOL- 14 7 TS SIL 23 14 16 17 PNK WIRE 4 12 17 9 8 6 D/G TS +BI +BO TRIG ABS IG FUSE BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMBINATION METER DATA LINK CONNECTOR 3 (BEHIND LEFT SIDE OF DASH) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ED (REAR OF LEFT FENDER) EE (REAR OF OF FENDER) ESS BAT TRIG FUSE GRN/RED WIRE HOT AT ALL TIMES HOT IN ON OR START IH (UNDER STEERING COLUMN) JUNCTION CONNECTOR 13 (BEHIND RIGHT SIDE OF DASH) JUNCTION CONNECTOR 9, 10 (BEHIND TOP LEFT END OF DASH) LT GRN WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PNK WIRE PPS SOLENOID (AT RIGHT FRONT OF ENGINE) RED WIRE SKID CONTROL ECU (BEHIND LEFT END OF DASH) STEERING SENSOR (ON STEERING COLUMN) VIO WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE

BDR BLK/RED WIRE BLK/YEL WIRE BLU/ORG WIRE BQ (AT RIGHT QUARTERPANEL) COMPUTER DATA LINES SYSTEM CPUB DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) FUSE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START HTR INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) JC-18 LEFT REMOTE CONTROL MIRROR LUGGAGE ROOM J/B (AT LEFT REAR CORNER OF LUGGAGE COMPT) MIRROR HEATER MPX MPX-IG FUSE ORG/ WIRE P DOOR FUSE PASSENGER DOOR ECU (IN RIGHT DOOR) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) RED/BLU WIRE RED/WHT WIRE RIGHT REMOTE CONTROL MIRROR SIG VIO/WHT WIRE WHT/BLK WIRE

10 9 ATX+ ATX- 11 22 7 18 2 12 13 4 15 17 5 16 6 9 20 CG GND SIL WFSE IG BATT 13 2 10 MPX- MPX+ BUBS 13 33 MPX 19 8 TX- TX+ 6 3 PNK TXS- TXS+ WIRE A/C CONTROL ASSEMBLY (BEHIND CENTER OF DASH) AIR AIR BAG SENSOR ASSEMBLY (AT CENTER OF DASH, BELOW RADIO) BAG BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMBINATION METER COMBINATION SWITCH DATA LINK CONNECTOR 3 (BEHIND LEFT SIDE OF DASH) DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B ECU (BEHIND LEFT KICK PANEL) DRIVER'S POWER SEAT ECU (UNDER DRIVER'S SEAT) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN IN ECU BOX) ENGINE ROOM 2 R/B (ON LEFT SIDE OF ENGINE COMPT, FORWARD OF STRUT TOWER) FRONT CONTROLLER FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE GRY WIRE GTX+ GTX- PNK WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IG (LEFT SIDE OF STEERING COLUMN) IH (UNDER STEERING COLUMN) INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) J/C 13 (BEHIND RIGHT SIDE OF DASH) J/C 9, 10 (BEHIND TOP LEFT END OF DASH) LT GRN WIRE LT GRN/BLK WIRE LUGGAGE ROOM J/B ECU (AT LEFT REAR CORNER OF LUGGAGE COMPT) MPX MPX-IG FUSE MULTI-DISPLAY ORG/ WIRE PASSENGER DOOR ECU (IN RIGHT DOOR) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PASSENGER'S POWER SEAT ECU (UNDER PASSENGER'S SEAT) PNK/BLU WIRE RADIO 2 FUSE RADIO, PLAYER RED WIRE RED/BLU WIRE RED/WHT WIRE SIL SKID CONTROL ECU (BEHIND LEFT END OF DASH) SLIDING ROOF CONTROL ECU (IN LEFT REAR OF LUGGAGE COMPT) TELEPHONE COMPUTER THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) TILT, TELESCOPIC ECU (BEHIND LEFT END OF DASH) TIRE PRESSURE MONITOR RECEIVER (BEHIND CENTER OF DASH, BELOW RADIO) TRANSPONDER KEY COMPUTER (LEFT SIDE OF DASH, BEHIND GAUGE ASSEMBLY) VIO WIRE VIO/WHT WIRE W/ LINK SYSTEM W/ NAVIGATION WFSE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

1 4 5 6 GND CPUB SIG BDR 18 10 MUL 2 13 MPX+ MPX- 25 26 LCTE LCT 3 4 13 6 5 20 LSW KUL KL A+ A- CPSE 3 5 6 20 LSW A- A+ CPSE 4 8 LCTY LCM+ 8 19 20 22 27 29 30 ML MUL 8 9 19 21 22 27 28 30 ML WLSW MUL PWS BL (UNDER DRIVER'S SEAT) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BQ (AT RIGHT QUARTERPANEL) COMPUTER DATA LINES SYSTEM CTY DLE PNK WIRE CTY PWE D DOOR FUSE DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) MPX-IG FUSE ENGINE ROOM 1 R/B (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START ILL INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) JC-18 LEFT DOOR COURTESY SWITCH LEFT DOOR LOCK CONTROL SWITCH (POWER WINDOW MASTER SWITCH) LUGGAGE COMPARTMENT DOOR DETECTION SWITCH (IN LUGGAGE COMPT, NEAR LOCK ASSEMBLY) LUGGAGE COMPARTMENT DOOR LOCK MOTOR (IN LUGGAGE COMPT, NEAR LOCK ASSEMBLY) LUGGAGE ROOM J/B (AT LEFT REAR CORNER OF LUGGAGE COMPT) LUGGAGE ROOM J/B ECU (AT LEFT REAR CORNER OF LUGGAGE COMPT) ORG/ WIRE P DOOR FUSE PASSENGER DOOR ECU (IN RIGHT DOOR) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PNK WIRE RADIO 2 FUSE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT DOOR COURTESY SWITCH RIGHT DOOR LOCK CONTROL SWITCH RIGHT DOOR LOCK MOTOR, DOOR UNLOCK DETECTION SWITCH SECURITY FUSE SLIDING ROOF CONTROL ECU (IN LEFT REAR OF LUGGAGE COMPT) TAIL FUSE VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE

+B +BM A/C SYSTEM A/C SYSTEM A/C SYSTEM ACCEL PEDAL POSITION SENSOR (BEHIND LEFT CENTER OF DASH) BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM CRUISE CONTROL SYSTEM DATA LINK CONNECTOR 3 (BEHIND LEFT SIDE OF DASH) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ECT PWR. ECT SNOW ED (REAR OF LEFT FENDER) EFII EFIO ENG ENGINE CONTROL MODULE (ECM) (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HP PRE SIL J/C 9 (BEHIND TOP LEFT END OF DASH) LT GRN WIRE LT GRN/BLK WIRE MIL IND NEO NEO TBP ORG/ WIRE PNK TRC+ ENG+ WIRE PNK WIRE PNK/BLK WIRE PTNK RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RFC SIL SKID CONTROL ECU (BEHIND LEFT END OF DASH) SPEEDOMETER STA MREL FC FPR ACMG IGSW TAM ETAM TAC TACH TACHOMETER TC STP TRC+ TRC- ENG- CCS VAPOR PRESSURE SENSOR (UNDER LEFT REAR OF VEHICLE) VCC VIO WIRE VPA EPA VCPA WFSE IMO IMI PTNK EPTK VPTK WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WSFE YEL WIRE YEL/BLK WIRE