Lexus SC II (2001-2005) center j/b (behind right center of dash) 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

+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

15 7 5 8 6 12 TAIL-RLY FMIG 5 13 2 10 12 1 SG MPX- MPX+ BUBS BL (UNDER DRIVER'S SEAT) BLK WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BP (AT LEFT QUARTERPANEL) CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMBINATION SWITCH (ON STEERING COLUMN, BEHIND STEERING WHEEL) COMPUTER DATA LINES SYSTEM CRA RELAY DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ENGINE ROOM 1 R/B (ON RIGHT SIDE OF ENGINE COMPT, BEHIND STRUT TOWER) FRONT CONTROLLER GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HIGH MOUNTED STOP LIGHT HOT AT ALL TIMES HOT AT ALL TIMES PASSENGER SIDE J/B (BEHIND FUSE RIGHT KICK PANEL) HOT WITH IG (LEFT SIDE OF STEERING COLUMN) INSTRUMENT PANEL J/B (BEHIND UPPER CENTER JC-17 JUNCTION CONNECTOR JUNCTION CONNECTOR 1 (IN ENGINE ROOM 2 R/B) JUNCTION CONNECTOR 14 (BEHIND RIGHT SIDE OF DASH) JUNCTION CONNECTOR 3 (IN ENGINE ROOM 2 R/B) JUNCTION CONNECTOR 8 (BEHIND LEFT END OF DASH) IF IK LCE LP FUSE LEFT FRONT PARKING LIGHT RIGHT FRONT SIDE MARKER LIGHT LEFT FRONT SIDE MARKER LIGHT LEFT REAR COMBINATION LIGHT LEFT REAR SIDE MARKER LIGHT LEFT STOP LICENSE PLATE LIGHT LIGHT LT GRN/BLK WIRE LUGGAGE ROOM J/B (AT LEFT REAR CORNER OF LUGGAGE COMPARTMENT) LUGGAGE ROOM J/B ECU MPX-IG FUSE OF DASH) P-GND RED WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT PARKING LIGHT RIGHT REAR COMBINATION LIGHT RIGHT REAR SIDE MARKER LIGHT RIGHT STOP RR J/B FUSE TAIL FUSE TAIL- LIGHT TURN SIGNAL TURN SIGNAL TAIL LIGHT VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK 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

A/C CONTROL ASSEMBLY AIRBAG SENSOR ASSEMBLY AUDIO DOOR CONTROL SWITCH BLK WIRE BRAKE ACTUATOR BRAKE FLUID LEVEL WARNING SWITCH BRN WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) CIGARETTE LIGHTER COMBI- NATION SWITCH MULTI- DISPLAY COMBINATION METER DATA LINK CONNECTOR 3 DRIVER SIDE J/B (LEFT KICK PANEL) DRIVER SIDE J/B ECU DRIVER SIDE J/B ECU A/C SINGLE PRESSURE SWITCH ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SWITCH FUEL LID OPENER SWITCH GATEWAY ECU HEADLIGHT BEAM LEVEL CONTROL ECU GLOVE BOX LIGHT SWITCH PASSENGER SIDE J/B ECU IG (LEFT SIDE OF STEERING COLUMN) IH (UNDER STEERING COLUMN) II (LEFT DASH BRACE) IJ (RIGHT DASH BRACE) INNER MIRROR LEFT VANITY LIGHT LUGGAGE COMPARTMENT DOOR OPENER MAIN SWITCH LUGGAGE COMPARTMENT DOOR OPENER SWITCH MIRROR RETRACTOR SWITCH, HEAD LIGHT CLEANER SWITCH, SECURITY INDICATOR LIGHT PASSENGER SIDE J/B (RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PERSONAL LIGHT, GARAGE DOOR OPENER, TELEPHONE MICROPHONE POWER OUTLET RADIO, PLAYER RELAY RIGHT VANITY LIGHT SEAT HEATER SWITCH STEERING SENSOR SHIFT LOCK CONTROL ECU THEFT DETERRENT ECU TILT, TELESCOPIC ECU TIRE PRESSURE MONITOR RECEIVER TIRE SELECT SWITCH TRANS- PONDER KEY COMPUTER TURN SIGNAL FLASHER RELAY UNLOCK WARNING SWITCH, KEY INTERLOCK SOLENOID VSC OFF SWITCH 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 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

+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