Lexus SC II facelift (2005-2010) bl (under driver's seat) Wiring diagrams

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 BLU/YEL WIRE 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) 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 DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) MPX-IG FUSE ILL INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) LEFT DOOR COURTESY SWITCH LEFT DOOR LOCK CONTROL SWITCH (POWER WINDOW MASTER SWITCH) 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 (IN RIGHT FRONT DOOR) 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

AFS ECU (LEFT END OF DASH) BACK-UP LIGHT SWITCH (ON TRANSMISSION) BKUP BL (UNDER DRIVER'S SEAT) BLK WIRE BLK/RED WIRE BLU/YEL WIRE BP (AT LEFT QUARTERPANEL) COMBINATION SWITCH DRIVER SIDE J/B ECU (BEHIND LEFT KICK PANEL) ENGINE CANL 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 HOT IN ON OR START DRIVE D-IG FUSE SIDE J/B (BEHIND LEFT KICK PANEL) J/C 17 (LEFT REAR OF LUGGAGE COMPT) JUNCTION CONNECTOR 25 (BEHIND RIGHT SIDE OF DASH) JUNCTION CONNECTOR 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) RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE TILT, TELESCOPIC ECU (BEHIND LEFT END OF DASH) VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE

27 7 18 30 22 CTY CTYB CYL 6 1 BDR GND AIR BAG SENSOR ASSEMBLY (UNDER FRONT OF CENTER CONSOLE) BL (UNDER DRIVER'S SEAT) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER COMBINATION SWITCH CTY CTYB CYL D DOOR FUSE D-IG FUSE DOOR IND DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ENGINE ROOM 1 R/B (ON RIGHT SIDE OF ENGINE COMPARTMENT, BEHIND STRUT TOWER) GRN WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IH (UNDER STEERING COLUMN) J/C 13 (BEHIND RIGHT SIDE OF DASH) J/C 17 (LEFT REAR OF LUGGAGE COMPT) J/C 18 (RIGHT REAR OF LUGGAGE COMPT) LEFT DOOR COURTESY LIGHT LEFT DOOR COURTESY SWITCH LEFT LUGGAGE COMPARTMENT LIGHT LEFT SCUFF PLATE LIGHT LGCY LUGGAGE ROOM J/B (AT LEFT REAR CORNER OF OF LUGGAGE COMPARTMENT) LUGGAGE ROOM J/B ECU MPX MPX-B MPXB ORG/ WIRE P DOOR FUSE P-GND PASSENGER DOOR ECU (IN RIGHT DOOR) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PNK WIRE PNK/BLU WIRE POWER SEAT ECU (DRIVER'S SEAT) (UNDER DRIVER'S SEAT) POWER SEAT ECU (FRONT PASSENGER'S SEAT) (UNDER FRONT PASSENGER'S SEAT) RED WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT DOOR COURTESY LIGHT RIGHT DOOR COURTESY SWITCH RIGHT LUGGAGE COMPARTMENT LIGHT SKID CONTROL ECU (BEHIND LEFT END OF DASH) SLIDING ROOF CONTROL ECU (IN LEFT REAR OF LUGGAGE COMPT) TILT, TELESCOPIC ECU (BEHIND LEFT END OF DASH) VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL 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/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BP (AT LEFT QUARTERPANEL) CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMBINATION SWITCH 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/ORG 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 IN ON OR START IG (LEFT SIDE OF STEERING COLUMN) INSTRUMENT PANEL J/B (BEHIND UPPER CENTER JUNCTION CONNECTOR JUNCTION CONNECTOR 1 (IN ENGINE ROOM 2 R/B) JUNCTION CONNECTOR 14 (BEHIND RIGHT SIDE OF DASH) JUNCTION CONNECTOR 17 (LEFT REAR OF LUGGAGE COMPT) JUNCTION CONNECTOR 3 (IN ENGINE ROOM 2 R/B) 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 ECU LUGGAGE ROOM J/B ECU (AT LEFT REAR CORNER OF LUGGAGE COMPT) 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/BLU WIRE WHT/RED WIRE YEL WIRE

AUTO ANTENNA CONTROL RELAY BL (UNDER DRIVER'S SEAT) BLK WIRE BM (UNDER PASSENGER'S SEAT) BO BN (NEAR STEREO (AT LEFT COMPONENT QUARTERPANEL) AMPLIFIER) BRN WIRE DRIVER DOOR ECU FUEL LEFT BUCKLE PUMP SWITCH FUEL LID OPENER MOTOR HIGH MOUNTED STOP LIGHT LEFT BACK-UP LIGHT LEFT REAR COMBI- NATION LIGHT LEFT REAR SIDE MARKER LIGHT LUGGAGE ROOM J/B (AT LEFT REAR CORNER OF LUGGAGE COMPT) LUGGAGE ROOM J/B ECU LUMBAR SUPPORT CONTROL SWITCH (DRIVER'S SEAT) LUMBAR SUPPORT CONTROL SWITCH SLIDING (FRONT ROOF PASSENGER'S CONTROL SEAT) ECU NAVIGATION ECU OCCUPANT CLASSIFICATION ECU PASSENGER DOOR ECU POWER SEAT CONTROL SWITCH (FRONT PASSENGER'S SEAT) POWER SEAT ECU (DRIVER'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 (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) RIGHT BACK-UP LIGHT RIGHT BUCKLE SWITCH, OCCUPANT DETECTION SENSOR RIGHT REAR COMBI- NATION LIGHT RIGHT REAR SIDE MARKER LIGHT SEAT HEATER CONTROLLER (DRIVER'S SEAT) SLIDING ROOF CONTROL ECU STEREO REAR COMPONENT WINDOW AMPLIFIER DEFOGGER WHT WIRE WHT/BLK WIRE

BL (UNDER DRIVER'S SEAT) BLK WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BM (UNDER PASSENGER'S SEAT) CENTER J/B (BEHIND RIGHT CENTER OF DASH) DRIVER'S SEAT HEATER CONTROLLER (UNDER DRIVER'S SEAT) SWL THL FRONT PASSENGER'S SEAT HEATER CONTROLLER (UNDER PASSENGER'S SEAT) GRN WIRE HOT IN ON OR START IG (BEHIND CENTER OF DASH) IH (UNDER STEERING COLUMN) ILL J/C 20 (BELOW LEFT FRONT SEAT) J/C 21 (BELOW RIGHT FRONT SEAT) LT GRN WIRE P-IG FUSE PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) RED WIRE RED/BLU WIRE RVL SWL RVR SEAT HEATER SWITCH SEAT HTR FUSE SWR SWR THR WHT WIRE WHT/BLK WIRE YEL WIRE

10 9 5 8 DATA RSSI +5 21 29 30 22 PWS PWE 6 1 BDR GND AIR BAG AIR BAG SENSOR ASSEMBLY (UNDER FRONT OF CENTER CONSOLE) BL (UNDER DRIVER'S SEAT) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BRN WIRE BRN/WHT WIRE BUBS CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMBINATION METER D DOOR FUSE D-IG FUSE DRIVER DOOR ECU (IN DRIVER'S DOOR) DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) ENGINE ROOM 1 R/B (ON RIGHT SIDE OF ENGINE COMPARTMENT, BEHIND STRUT TOWER) FUSE GLOVE BOX LIGHT GRN WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IG (BEHIND CENTER OF DASH) IH (UNDER STEERING COLUMN) J/C 13 (BEHIND RIGHT SIDE OF DASH) J/C 17 (LEFT REAR OF LUGGAGE COMPT) J/C 18 (RIGHT REAR OF LUGGAGE COMPT) J/C 9, 10 (BEHIND TOP LEFT END OF DASH) LUGGAGE ROOM J/B (AT LEFT REAR CORNER OF LUGGAGE COMPARTMENT) LUGGAGE ROOM J/B ECU MPX MPX RCO MPXB ORG/ WIRE P DOOR FUSE P-GND PASSENGER DOOR ECU (IN RIGHT DOOR) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PNK WIRE PNK/BLU WIRE 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 DLE RED WIRE RED/BLU WIRE RED/YEL WIRE RIGHT DOOR LOCK CONTROL SWITCH SKID CONTROL ECU (BEHIND LEFT RIGHT POWER END OF DASH) WINDOW CONTROL SWITCH SLIDING ROOF CONTROL ECU (IN LEFT REAR OF LUGGAGE COMPT) THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE WIRELESS DOOR LOCK CONTROL RECEIVER YEL WIRE

1 2 3 4 5 6 7 8 9 10 ECUE IG 1 2 3 4 5 6 7 8 9 10 RCL- RCL+ SLD- SLD+ LFT- LFT+ GND +B FRV- FRV+ BL (UNDER DRIVER'S SEAT) BLK WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (BEHIND 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 (IN 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) FDWN FUP GND ECUB GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES D P/SEAT FUSE HOT AT ALL TIMES TI, TE FUSE IH (UNDER STEERING COLUMN) II (ON LEFT SIDE DASH BRACE) J/C 19 (BELOW LEFT FRONT SEAT) J/C 20 (BELOW LEFT FRONT SEAT) KSW TRANSPONDER KEY COMPUTER (LEFT SIDE OF DASH, BEHIND GAUGE ASSEMBLY) LDWN LT GRN WIRE LT GRN/BLK WIRE LUP ORG/ WIRE PNK/BLK WIRE PNK/BLU WIRE RCLF RCLF RCLR RCLR RED WIRE RED/BLU WIRE SGND SSRS SLDF SLDR LUP LDWN FUP SLDF SLDR SSFV SSRV SSRR PVCC FDWN IG SYSB TILT, TELESCOPIC ECU (BEHIND LEFT END OF DASH) TIM- TIM+ TEM- TEM+ UNLOCK WARNING SWITCH (BEHIND LEFT SIDE OF DASH) 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 YEL/RED 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 BLU/YEL WIRE 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) 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 DRIVER SIDE J/B (BEHIND LEFT KICK PANEL) MPX-IG FUSE ILL INSTRUMENT PANEL J/B (BEHIND UPPER CENTER OF DASH) LEFT DOOR COURTESY SWITCH LEFT DOOR LOCK CONTROL SWITCH (POWER WINDOW MASTER SWITCH) 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 (IN RIGHT FRONT DOOR) 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

1 2 3 4 5 6 10 11 21 GND DN UP CPUB SIG BDR LMT 1 2 3 4 5 6 10 11 21 GND DN UP CPUB SIG BDR LMT SGND PLS 2 5 8 9 14 15 16 19 20 21 22 23 25 27 29 30 AUTO 2 9 20 22 23 25 27 29 30 AUTO WLSW 4 13 20 KUL KL CPSE AUTO BL (UNDER DRIVER'S SEAT) BLK WIRE BLK/ WHT 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 BRN/WHT WIRE BZR CENTER J/B (BEHIND RIGHT CENTER OF DASH) COMPUTER DATA LINES SYSTEM D DOOR FUSE DATA DDN DN AUTO UP AUTO DN MAN UP MAN DRIVER DOOR ECU (IN DRIVER'S DOOR) DUP FUSE GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IG RDA RSSI IH (UNDER STEERING COLUMN) JUNCTION CONNECTOR 13 (BEHIND RIGHT SIDE OF DASH) JUNCTION CONNECTOR 18 (RIGHT REAR OF LUGGAGE BQ COMPARTMENT) JUNCTION CONNECTOR 9, 10 (BEHIND TOP LEFT END OF DASH) LEFT DOOR COURTESY SWITCH LEFT POWER WINDOW MOTOR (IN LEFT DOOR) LMT LMT PLS LUGGAGE ROOM J/B (AT LEFT REAR CORNER OF LUGGAGE COMPT) ML WLSW MPX RCO GND MPX-IG FUSE MUL MUP MDN CTY PWE ORG/ WIRE P DOOR FUSE PASSENGER DOOR ECU (IN RIGHT DOOR) PASSENGER SIDE J/B (BEHIND RIGHT KICK PANEL) PCT PLS PNK/BLU WIRE POWER WINDOW MASTER SWITCH PWS RADIO 2 FUSE RED WIRE RED/ BLU WIRE RED/BLU WIRE RED/WHT WIRE RIGHT DOOR COURTESY SWITCH RIGHT POWER WINDOW CONTROL SWITCH RIGHT POWER WINDOW MOTOR (IN RIGHT DOOR) RSSI SECURITY FUSE THEFT DETERRENT ECU (BEHIND LEFT END OF DASH) VIO WIRE VIO/WHT WIRE W/L WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE WIRELESS DOOR LOCK BUZZER WIRELESS DOOR LOCK CONTROL RECEIVER YEL WIRE YEL/BLK WIRE YEL/RED WIRE