Lexus SC II (2001-2005) skid control ecu (behind left end of dash) 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

+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

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

+B +BM 10 2 NSSD 19 20 11 13 18 NEO TRC+ ENG+ TRC- ENG- PNK WIRE 2 4 5 6 7 8 13 17 26 EC BATT 3 4 9 13 14 18 19 20 21 22 26 27 29 30 31 32 33 34 35 TC STP NEO 4 TRC+ ENG+ PNK WIRE ACCEL PEDAL POSITION SENSOR (BEHIND LEFT CENTER OF DASH) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMBINATION METER COMBINATION SWITCH CCS COMPUTER DATA LINES SYSTEM CRUISE CRUISE CONTROL SWITCH CRUISE IND DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) D-IG FUSE DRIVER SIDE J/B ECU (BEHIND LEFT KICK PANEL) STPI EB (RIGHT SIDE OF CYLINDER HEAD) EC (LEFT SIDE OF CYLINDER HEAD) ED (REAR OF LEFT FENDER) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT, IN ECU BOX) ENGINE ROOM 2 R/B (ON LEFT EFI RELAY ETA VC GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IH (UNDER STEERING COLUMN) JUNCTION CONN- ECTOR 2 (IN ENGINE ROOM 2 R/B) JUNCTION CONNECTOR 2 (IN ENGINE ROOM 2 R/B) JUNCTION CONNECTOR 3 (IN ENGINE ROOM 2 R/B) JUNCTION CONNECTOR 4 (IN ECU BOX) JUNCTION CONNECTOR 7 (IN ECU BOX) JUNCTION CONNECTOR 9 (BEHIND TOP LEFT END OF DASH) JUNCTION CONNECTORS 4, 5 (IN ECU BOX) LT GRN WIRE LT GRN/BLK WIRE M- M+ MREL IGSW SIL NCA WIRE PARK/ NEUTRAL POSITION SWITCH (ON TRANSMISSION) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PNK/BLK WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RES/ ECC SET/ COAST SG WFSE SIDE OF ENGINE COMPT, FORWARD OF STRUT TOWER) SIL SKID CONTROL ECU (BEHIND LEFT END OF DASH) SPEEDOMETER STOP FUSE STOPLIGHT SWITCH (ON TOP OF BRAKE PEDAL BRACKET) THROTTLE CONTROL MOTOR, SENSOR (ON THROTTLE BODY) VEHICLE SPEED SENSOR (ELECTONICALLY CONTROLLED TRANSMISSION) (ON TRANSMISSION) VIO WIRE VPA EPA VCPA WFSE EPTK VPTK TRC- ENG- CCS WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN 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

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

10 2 13 BUBS MPX+ MPX- AUTOMATIC LIGHT CONTROL SENSOR (BEHIND UPPER RIGHT SIDE OF DASH) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/YEL WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) CLTB CLTE CLTS COMBINATION METER COMBINATION SWITCH COMPUTER DATA LINES SYSTEM D-IG FUSE DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) DRIVER SIDE J/B ECU FR FOG FUSE FRONT FOG IND FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) HEAD HEAD INDICATOR (EXCEPT CANADA) HIGH BEAM INDICATOR HOT AT ALL TIMES HOT IN ON OR START IG (LEFT OF STEERING COLUMN) IG (LEFT SIDE OF STEERING COLUMN) IH (UNDER STEERING COLUMN) II (ON LEFT DASH BRACE) INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 13 (BEHIND RIGHT SIDE OF DASH) LUGGAGE ROOM J/B ECU (AT LEFT REAR CORNER OF LUGGAGE COMPARTMENT) MPX+ MPX- MPX-B MPX-IG MPX-IG FUSE MPXB ORG/ WIRE PARKING BRAKE SWITCH (BEHIND LEFT SIDE OF DASH) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE SKID CONTROL ECU (BEHIND LEFT END OF DASH) TAIL FUSE TILT, TELESCOPIC ECU (BEHIND LEFT END OF DASH) VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 GND 25 17 16 FLO AIRBAG BEAM LEVEL INDICATOR BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/ORG WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM D-IG FUSE DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) FRONT HEIGHT CONTROL SENSOR FUSE GRN WIRE H-LP LVL FUSE HDLV HEADLIGHT BEAM LEVEL CONTROL ECU (BEHIND LEFT END OF DASH) HOT AT ALL TIMES HOT IN ON OR START IG (LEFT SIDE OF STEERING COLUMN) IH (UNDER STEERING COLUMN) JUNCTION CONNECTOR 1 (IN ENGINE ROOM 2 R/B) JUNCTION CONNECTOR 13 (BEHIND RIGHT SIDE OF DASH) MLCOM MPX MRCOM ORG/ WIRE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PNK 1 2 3 4 5 6 WIRE PNK WIRE REAR HEIGHT CONTROL SENSOR RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RHG RH+ RHT RH- RHE IG SBF WNG LHG LH+ LHT LH- LHE SGF SHFL SHRL SKID CONTROL ECU (BEHIND LEFT END OF DASH) SPDL VIO WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE WNG YEL WIRE YEL/BLK WIRE YEL/RED 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

+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