Lexus SC II (2001-2005) mpx Wiring diagrams

+BI RL+ RL- RR+ RR- 1 2 3 4 5 6 7 8 9 10 VGS 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 CSW 12 13 14 15 16 17 18 19 20 21 22 23 24 TS ABS IG FUSE ABS IND. BLK WIRE BLK/ORG WIRE BLK/WHT WIRE BLU WIRE BLU/ORG WIRE BRAKE IND BRN WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM D/G DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) D-IG FUSE DRIVER SIDE J/B ECU (BEHIND LEFT KICK PANEL) ENGINE ROOM 2 R/B (ON LEFT SIDE OF ENGINE COMPT, FORWARD OF STRUT TOWER) FLO FUSE GGND GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE GYAW HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN ON OR START HOT IN RUN OR START IGN FUSE JUNCTION CONNECTOR 13 (BEHIND RIGHT SIDE OF DASH) JUNCTION CONNECTOR 2 (IN ENGINE ROOM 2 R/B) LEFT REAR ABS SPEED SENSOR (AT LEFT REAR WHEEL ASSEMBLY) LT GRN WIRE MPX NCA WIRE ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RIGHT REAR ABS SPEED SENSOR (AT RIGHT REAR WHEEL ASSEMBLY) SKID CONTROL ECU (BEHIND LEFT END OF DASH) STEERING SENSOR (ON STEERING COLUMN) STOP FUSE STOPLIGHT SWITCH (ON TOP OF BRAKE PEDAL BRACKET) TRIG TRIG +BO STP VIO WIRE VSC IND VSC OFF IND SLIP IND VSC OFF SWITCH VSC WARNING BUZZER (BEHIND LEFT SIDE OF DASH) VYS WHT WIRE WHT/BLK WIRE WHT/RED WIRE YAW - YAW RATE SENSOR (UNDER REAR OF CENTER CONSOLE) YEL WIRE YEL/RED WIRE YSS YD

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

A/C MPX- CONTROL ASSEMBLY (BEHIND MPX+ CENTER OF DASH) AIR BAG SENSOR ASSEMBLY (AT CENTER OF DASH, BELOW RADIO) BACK-UP LIGHT SWITCH BKUP BL (UNDER DRIVER'S SEAT) BLK WIRE BLK/RED WIRE BLU/ORG WIRE BLU/YEL WIRE BP (AT LEFT QUARTERPANEL) COMBINATION METER MPX+ COMBINATION SWITCH (ON STEERING COLUMN, BEHIND STEERING WHEEL) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B ECU (BEHIND LEFT KICK PANEL) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) ENGINE ROOM 2 R/B (ON LEFT SIDE OF ENGINE COMPT, FORWARD OF STRUT TOWER) FRONT CONTROLLER GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE JC-17 JUNCTION CONNECTOR 4, 5 (IN ECU BOX) LEFT BACK-UP LIGHT RIGHT BACK-UP LIGHT LUGGAGE ROOM J/B (AT LEFT REAR CORNER OF LUGGAGE COMPARTMENT) LUGGAGE ROOM J/B ECU MPX P-GND PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU MPX- RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE RELAY ENERGIZED DRIVE D-IG FUSE SIDE J/B (BEHIND LEFT KICK PANEL) SKID CONTROL ECU (BEHIND LEFT END OF DASH) TILT, TELESCOPIC ECU (BEHIND LEFT END OF DASH) TIRE PRESSURE MONITOR RECEIVER (BEHIND CENTER OF DASH, BELOW RADIO) VIO WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE

+IG REAR LIGHTS IND 13 15 STPI 2 10 HAZ BU+ A/C CONTROL BLK WIRE BLK/ORG WIRE BLU WIRE BLU/ORG WIRE BLU/YEL WIRE BRN WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM D-IG FUSE DASH, ABOVE STEERING COLUMN) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B ECU ED (REAR OF LEFT FENDER) FUSE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE HAZARD SWITCH ASSEMBLY (BEHIND CENTER OF DASH) HOT AT ALL TIMES IH (UNDER STEERING COLUMN) JUNCTION CONNECTOR 12 (BEHIND RIGHT SIDE OF DASH) JUNCTION CONNECTOR 13 (BEHIND RIGHT SIDE OF DASH) JUNCTION CONNECTOR 14 (BEHIND RIGHT SIDE OF DASH) JUNCTION CONNECTOR 3 (IN ENGINE ROOM 2 R/B) LEFT FRONT TURN SIGNAL LIGHT LEFT TURN LEFT TURN IND MPX MPX+B TAIL IND (CANADA) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) RED WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT FRONT TURN SIGNAL LIGHT RIGHT TURN RIGHT TURN IND STOP FUSE STOPLIGHT SWITCH (ON TOP OF BRAKE PEDAL BRACKET) TURN SIGNAL FLASHER RELAY (BEHIND LEFT SIDE OF WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL 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

BKUP BLK WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BP (AT LEFT QUARTERPANEL) BUBS COMPUTER DATA LINES SYSTEM DEF DEFOGGER SYSTEM DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) EXTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM FUEL OPN FUSE FUSE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE HOT AT ALL TIMES HOT IN ON OR START MPX-IG FUSE JC-17 LCM+ LCTY LUGGAGE ROOM J/B (AT LEFT REAR CORNER OF LUGGAGE COMPT) LUGGAGE ROOM J/B ECU MPX MPX-IG MPX-B HIC P-GND TAIL 2 L-O/C(P) FUEL OPN(P) FUEL OPN(O) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PNK LGCY WIRE RED WIRE RED/BLK WIRE RED/WHT WIRE TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE VIO/WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE

+SM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 S/S +2 1 2 3 4 5 6 7 8 9 10 BACK PBIL AIRBAG WIP 2 3 4 5 6 7 8 9 10 BKLL BLU WIRE BLU/RED WIRE COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B ECU CIRCUIT FSPT SNOW PWR FUSE GRN WIRE GRN/RED WIRE GRY/BLU WIRE HDLV HR WNG HEADLIGHTS SYSTEM AIR CONDITIONING SYSTEM HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN ON OR START HOT IN ON OR START DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) WIPER FUSE IG (LEFT SIDE OF STEERING COLUMN) IGNITION SWITCH IH (UNDER STEERING COLUMN) INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) INTERIOR LIGHTS SYSTEM TRANSMISSIONS SYSTEM TRANSMISSIONS SYSTEM LOCK MPX MPX-B MPX-IG MPX-IG FUSE NAVIGATION SYSTEM WARNING SYSTEM PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU (RIGHT SIDE KICK PANEL) PASSIVE RESTRAINT SYSTEM RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RUN WIRE SUPPLEMENTAL RESTRAINTS SYSTEM VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM YEL WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 CPUB 24 23 21 20 13 12 IMI IMO 5 4 3 2 1 GND TXCT RXCK CODE +B 7 15 16 HRLY COMPUTER DATA LINES SYSTEM 7 8 1 2 4 5 DL LL PL RL AIRBAG BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLU WIRE BLU/ WHT 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) CNCL CODE RXCK TXCT AGND GND COMPUTER DATA LINES SYSTEM CRA RELAY DATA DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B ECU (BEHIND LEFT KICK PANEL) ED (REAR OF LEFT FENDER) EFIO EFII ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) ENGINE ROOM 2 R/B (ON LEFT SIDE OF ENGINE COMPT, FORWARD OF STRUT TOWER) FRONT CONTROLLER GRN BLK/ WIRE GRN WIRE GRN/ YEL WIRE GRN/BLK WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE HDCY HEAD LP RELAY HEADLIGHTS SYSTEM HORN FUSE HORN RELAY HORN RLY HORNS SYSTEM HOT AT ALL TIMES HOT IN ON OR START IG (25-28 NOT USED) 29 30 31 32 33 RDA RSSI IGN FUSE IH (UNDER STEERING COLUMN) IND BZR JUNCTION CONNECTOR 2 (IN ENGINE JUNCTION CONNECTOR 3 (IN ENGINE ROOM 2 R/B) LT GRN/BLK WIRE MAIN FUSE MAIN LUGGAGE COMPARTMENT DOOR OPENER SWITCH MPX ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (ON TRANSMISSION) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU (RIGHT SIDE KICK PANEL) PNK WIRE PNK/BLU WIRE RCO (16-19 NOT USED) 20 21 22 23 24 RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE ROOM 2 R/B) RSSI SECURITY INDICATOR LIGHT TAIL-RLY THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) THEFT DETERRENT HORN (AT RIGHT FRONT OF ENGINE COMPT) TRANSPONDER KEY AMPLIFIER (BEHIND DASH, RIGHT OF STEERING COLUMN) TRANSPONDER KEY COIL UNLOCK WARNING SWITCH (BEHIND LEFT SIDE OF DASH) VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/YEL WIRE WIRELESS DOOR LOCK BUZZER YEL WIRE

BLK WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRAIDED BRAIDED 12 13 14 15 16 17 BRN WIRE ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SWITCH FUEL INJ 1 FUEL INJ 3 FUEL INJ 8 FUEL INJ 6 FUEL INJ 4 FUEL INJ 2 FUEL INJ 7 FUEL INJ 5 GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HEATED OXYGEN SENSOR (BANK 1 SENSOR 2) (ON EXHAUST SYSTEM, NEAR CATALYTIC CONV) IH (UNDER STEERING COLUMN) MPX PNK 4 5 6 7 WIRE PNK WIRE PNK/BLU WIRE PWR PWR SNOW SNOW THA WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE