Lexus LS III facelift (2003-2006) combination switch Wiring diagrams

+B STI- MREL IGSW CCHG CANL CANH SPD LGND 13 12 STPI STPO 2 4 5 6 8 13 17 20 24 25 22 29 EC BATT 4 3 9 19 26 27 30 31 32 33 34 35 STP TC ACCEL POSITION SENSOR (BEHIND LEFT CENTER OF DASH) BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE CANH CANL SGND COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CRUISE DISTANCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) DRIVER SIDE J/B STOP FUSE (AT LEFT KICK PANEL) EC (AT LEFT RADIATOR SIDE SUPPORT) ETCS FUSE EFI 1 FUSE FR IG FUSE GND IGB GRN/BLK WIRE GRN/ORG WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IGB IGN FUSE J/C J/C 1, 2 (LEFT FRONT OF ENGINE COMPT) J/C 35 (LEFT SIDE OF DASH) LASER RADAR SENSOR (BEHIND RIGHT SIDE OF FRONT BUMPER FASCIA) LGND LRDD LRDD LRRD LRRD LT GRN WIRE MODE R/N CRUISE CONTROL SWITCH OBD FUSE ORG/ WIRE PNK/BLK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/YEL WIRE RES+ SET/ COAST SFTD SFTU CCS SGND SHORT CONNECTOR (LEFT FRONT OF ENGINE COMPT) STOPLIGHT SWITCH (ABOVE BRAKE PEDAL, ON BRACKET) TRANSMISSIONS SYSTEM VIO WIRE VIO/WHT WIRE VIO/YEL WIRE VPA EPA VCPA WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL GRN/ WIRE YEL/BLK WIRE

13 12 STPI STPO 2 4 5 6 8 13 17 24 25 22 EC BATT ACCEL POSITION SENSOR (BEHIND LEFT CENTER OF DASH) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE CANCEL CRUISE CONTROL SWITCH COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CRUISE DRIVER SIDE J/B (AT LEFT KICK PANEL) STOP FUSE DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) EC (AT LEFT RADIATOR SIDE SUPPORT) EFI 1 FUSE ETCS FUSE ENGINE COMPT) ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) FR IG FUSE GRN/BLK WIRE GRN/ORG WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IGN FUSE J/C J/C 1, 2 (LEFT FRONT OF ENGINE COMPT) J/C 3 (LEFT FRONT OF J/C 35 (LEFT SIDE OF DASH) MREL IGSW CANL CANH SPD OBD FUSE ORG/ WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RED/YEL WIRE RES+ SET/ COAST SFTD SFTU CCS SHORT CONNECTOR (LEFT FRONT OF ENGINE COMPT) STOPLIGHT SWITCH (ABOVE BRAKE PEDAL, ON BRACKET) STP TC TRANSMISSIONS SYSTEM VIO/WHT WIRE VIO/YEL WIRE VPA EPA VCPA WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL/BLK WIRE

3 2 1 ES MPX SIG 31 26 12 30 15 MPX IG 6 4 26 31 32 FWAS W+ WLVL 9 1 2 S/M S/S +2 PNK WIRE AIR BAG BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BRN WIRE COMBINATION SWITCH COMPUTER DATA LINES SYSTEM EC (AT LEFT RADIATOR SIDE SUPPORT) ENGINE ROOM 1 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) ENGINE ROOM 2 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FRONT CONTROLLER FRONT WIPER MOTOR (BELOW LEFT SIDE OF WINDSHIELD) FUSE HOT AT ALL TIMES HOT IN ON OR START J/C 14, 15 (BEHIND UPPER CENTER OF DASH) J/C 7 (BELOW ENGINE ROOM 1 J/B, ENGINE ROOM 1 R/B) LT GRN WIRE LT GRN/RED WIRE OVERHEAD J/B (AT FRONT OF ROOF OPENING) P-IG FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B ECU (AT RIGHT KICK PANEL) PNK 3 1 9 10 WIRE PNK 3 WIRE PNK WIRE PNK/BLU WIRE RAIN SENSOR (NEAR TOP CENTER OF WINDSHIELD) RED WIRE RED/BLK WIRE RED/BLU WIRE VIO WIRE VIO/GRN WIRE WASHER FUSE WASHER LEVEL SENSOR (ON WASHER FLUID RESERVOIR, BELOW LEFT HEADLIGHT) WASHER MOTOR (ON WASHER FLUID RESERVOIR, BELOW LEFT HEADLIGHT) WHT WIRE WIP WIP FUSE

2 10 MPX+ BUBS BM (AT LEFT REAR QUARTERPANEL) COMBINATION SWITCH DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU FUEL FUEL LID OPENER SWITCH FUEL OPN FUSE FUEL OPN(O) FUEL OPN(P) FUSE GRN/WHT WIRE HOT AT ALL TIMES IG (AT LEFT SIDE OF DASH) J/C 23 (REARWARD OF LEFT REAR FENDERWELL) LUGGAGE ROOM J/B (ON LEFT SIDE OF LUGGAGE COMPARTMENT) LUGGAGE ROOM J/B ECU MPX-B P-GND PASSENGER SIDE J/B (AT RIGHT KICK PANEL) POWER TILT, POWER TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) RED WIRE RED/BLK WIRE VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLK WIRE

AIR BAG SENSOR ASSEMBLY BLK WIRE BLK/RED WIRE BRN WIRE CAMSHAFT POSITION SENSOR SHIELD COMBINATION SWITCH CRANKSHAFT POSITION SENSOR SHIELD D-ACC RELAY RELAY DEFOG RELAY FRONT CONTROLLER DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU EE (ON RIGHT CYLINDER HEAD) EF (ON LEFT CYLINDER HEAD) ENGINE COMPT) ENGINE CONTROL MODULE ENGINE CONTROL MODULE LASER SENSOR ENGINE OIL LEVEL SENSOR FUEL LID OPENER SWITCH OUTER MIRROR SWITCH HEATED OXYGEN SENSOR (BANK 1 SENSOR 1) SHIELD HEATED OXYGEN SENSOR (BANK 1 SENSOR 2) SHIELD HEATED OXYGEN SENSOR (BANK 2 SENSOR 1) SHIELD HEATED OXYGEN SENSOR (BANK 2 SENSOR 2) SHIELD IGNITION COIL, IGNITER 1 IGNITION COIL, IGNITER 2 IGNITION COIL, IGNITER 3 IGNITION COIL, IGNITER 4 IGNITION COIL, IGNITER 5 IGNITION COIL, IGNITER 6 IGNITION COIL, IGNITER 7 IGNITION COIL, IGNITER 8 IJ (AT RIGHT DASH BRACE) J/C 12, 13 (BEHIND UPPER CENTER OF DASH) J/C 3, 4 (LEFT FRONT OF J/C 33, 34 (LEFT FRONT OF ENGINE COMPT) J/C 8 (BEHIND LEFT END OF DASH) J/C 9 (BEHIND LEFT END OF DASH) JUNCTION CONNECTOR KEY INTERLOCK SOLENOID UNLOCK WARNING SWITCH KNOCK SENSORS SHIELD LEFT VVT SENSOR SHIELD LUGGAGE COMPARTMENT DOOR OPENER SWITCH MULTI-DISPLAY POWER TILT, POWER TELESCOPIC ECU RADIO, PLAYER RHEOSTAT RIGHT VVT SENSOR SHIELD SGND SHIELDED SHIELDED SHIELDED STEERING LOCK ECU IG (AT LEFT SIDE OF DASH) IH (AT RIGHT SIDE OF SHIFT LEVER) STEERING SENSOR TELEPHONE TRANSCEIVER, SPEAKER RELAY DISTANCE CONTROL ECU TELESCOPIC MOTOR, POSITION SENSOR SHIELD TILT MOTOR, POSITION SENSOR SHIELD TRANSMISSION CONTROL SWITCH DATA LINK CONNECTOR 3 UN- SLN- GND CG UNLOCK WARNING SWITCH GATEWAY ECU W/ NAVIGATION W/ SMART KEY SYSTEM W/O SMART KEY SYSTEM W/ SMART KEY W/O SMART KEY WHT WIRE WHT/BLK WIRE

10 13 2 BUBS MPX- MPX+ 10 5 7 8 BU+ MPX-B 2 13 14 CLTB CLTS CLTE 7 15 HRLY AUTOMATIC LIGHT CONTROL SENSOR (BEHIND UPPER CENTER OF DASH) BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU/YEL WIRE BRN WIRE CLTB CLTE CLTS COMBINATION SWITCH COMPUTER DATA LINES SYSTEM 25 11 28 10 CANL CANH PKB LBL DATA RSSI DRIVER DOOR ECU (INSIDE FRONT OF LEFT FRONT DOOR) CTY DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU FUSE GRN WIRE GRN/ORG WIRE HEAD HOT AT ALL TIMES HOT IN ON OR START IG (AT LEFT SIDE OF DASH) II (AT RIGHT SIDE OF SHIFT LEVER) JUNCTION CONNECTOR 13 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 14, 15 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 7 (BELOW ENGINE ROOM 1 J/B, ENGINE ROOM 1 R/B) LEFT FRONT DOOR COURTESY SWITCH (AT LEFT "B" PILLAR) LUGGAGE ROOM J/B ECU (ON LEFT SIDE OF LUGGAGE COMPARTMENT) MPX-IG MPX-IG FUSE OF DASH) ORG/ WIRE PARKING BRAKE SWITCH (BEHIND LEFT END OF DASH, ON PARKING BRAKE MECHANISM) PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK WIRE PNK/BLU WIRE PNK/GRN WIRE POWER TILT, POWER TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) RCO RDA RSSI RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE STEERING LOCK ECU (LEFT SIDE OF DASH) THEFT DETERRENT ECU (BEHIND UPPER RIGHT CENTER TRANSPONDER KEY COMPUTER (BEHIND UPPER CENTER OF DASH) VIO WIRE VIO/GRN WIRE VIO/WHT WIRE W/ SMART KEY W/O SMART KEY WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 IG PB HDLO BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE COMBINATION SWITCH DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) EC (AT LEFT RADIATOR SIDE SUPPORT) ENGINE ROOM 1 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FR IG FUSE FRONT CONTROLLER H-LP CLN FUSE HDCL HDLO HEAD HEADLIGHT CLEANER CONTROL RELAY (BEHIND LEFT HEADLIGHT) HEADLIGHT CLEANER MOTOR (BELOW LEFT HEADLIGHT) HEADLIGHT CLEANER SWITCH HOT AT ALL TIMES HOT IN ON OR START IG (AT LEFT SIDE OF DASH) J/C 1, 2 (LEFT FRONT OF ENGINE COMPT) LIGHT CONTROL SWITCH OFF HEAD PNK FRWA WIRE RED WIRE RED/BLK WIRE TAIL WHT WIRE WHT/BLK WIRE

11 25 CANH CANL 2 3 CANL CANH 24 25 CANL CANH 3 13 10 2 PNK MPX MPX- BUBS MPX+ WIRE 8 7 CANL CANH 9 10 CANL CANH 9 8 CANL CANH AFS ECU (RIGHT SIDE OF DASH) AIR SUSPENSION ECU (IF EQUIPPED) (BEHIND RIGHT SIDE OF DASH) BLK WIRE BLK/RED WIRE BLU WIRE BO (AT RIGHT REAR QUARTER- PANEL) BRN WIRE CLEARANCE SONAR ECU (W/ NAVIGATION) (ON LEFT SIDE OF LUGGAGE COMPARTMENT) COMBINATION SWITCH DATA LINK CONNECTOR 3 (BELOW LEFT SIDE OF DASH) 14 6 7 CANL CANH SIL DRIVER DOOR ECU (INSIDE FRONT OF LEFT FRONT DOOR) DRIVER SEAT ECU (BELOW LEFT SIDE OF DRIVER'S SEAT) DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) GRN WIRE IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) J/C 29 (REARWARD OF RIGHT REAR FENDERWELL) J/C 31 (W/ REAR POWER SEAT) (BEHIND LEFT REAR SEAT BACK) J/C 36, 37, 38, 39 40, 41, 42, 43 (CENTER OF DASH) J/C 44, 45, 46, 47, 48 (RIGHT SIDE OF DASH) J/C 49, 50, 51 (W/ NAVIGATION SYSTEM) (RIGHT REAR OF VEHICLE) LEFT REAR DOOR ECU (INSIDE LEFT REAR DOOR) LEFT REAR SEAT ECU (BEHIND LEFT SIDE OF REAR SEAT BACK) LT GRN WIRE LUGGAGE ROOM J/B ECU (ON LEFT SIDE OF LUGGAGE COMPARTMENT) MPX PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK M+ WIRE PNK WIRE PNK/BLU WIRE POWER SEAT CONTROL SWITCH (REAR SEAT) (LEFT SIDE OF REAR SEAT) POWER TILT, POWER TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) RED WIRE RED/BLU WIRE STEERING LOCK ECU (W/ SMART KEY SYSTEM) (LEFT SIDE OF DASH) STEERING SENSOR (INSIDE TOP OF STEERING COLUMN) TELEVISION CAMERA ECU (RIGHT REAR OF LUGGAGE COMPT) THEFT DETERRENT ECU (BEHIND UPPER RIGHT CENTER OF DASH) TRANSPONDER KEY COMPUTER (W/O SMART KEY SYSTEM) (BEHIND UPPER CENTER OF DASH) VIO WIRE VIO/GRN WIRE W/O NAVIGATION SYSTEM WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YAW RATE SENSOR (BELOW REAR OF CENTER CONSOLE) YEL WIRE

5 25 LED- ASH+ 6 17 1 26 BDR 6 26 1 17 BDR ANTI-THEFT SYSTEM ASH- BDR BL (AT LEFT REAR FLOOR PARTITION PANEL) BLK WIRE BLU WIRE BN (AT RIGHT REAR FLOOR PARTITION PANEL) CLEARANCE SONAR SWITCH (OUTER MIRROR SWITCH) (W/ PARKING ASSIST) COIN BOX ILLUMI- NATION COMBINATION METER COMBINATION SWITCH COMPUTER DATA LINES SYSTEM DRIVER DOOR ECU (INSIDE FRONT OF LEFT FRONT DOOR) DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) DRIVING POSITION MEMORY SWITCH FRONT PASSENGER DOOR ECU FUSE GRN WIRE GRN/ORG WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ON OR START IG (AT LEFT SIDE OF DASH) IR (UNDER RIGHT FRONT SEAT) J/C 13 (BEHIND UPPER CENTER OF DASH) J/C 14, 15 (BEHIND UPPER CENTER OF DASH) J/C 22 (REARWARD OF LEFT REAR FENDERWELL) J/C 27 JC-21 LED LEFT FRONT INSIDE HANDLE ILLUMINATION LEFT REAR ASHTRAY ILLUMINATION LEFT REAR DOOR ECU (INSIDE LEFT REAR DOOR) LEFT REAR INSIDE HANDLE ILLUMINATION LEFT REAR SEAT MEMORY SWITCH LP SEID LT BLU WIRE MPX-IG FUSE P DOOR FUSE PANEL FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B (AT RIGHT KICK PANEL) D DOOR FUSE PNK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE REMOTE CONTROL MIRROR SWITCH (OUTER MIRROR SWITCH) RHEOSTAT (LEFT SIDE OF DASH) RIGHT FRONT INSIDE HANDLE ILLUMINATION RIGHT REAR ASHTRAY ILLUMINATION RIGHT REAR DOOR ECU (INSIDE RIGHT REAR DOOR) RIGHT REAR INSIDE HANDLE ILLUMINATION RR DOOR LH FUSE RR DOOR RH FUSE TC RV TR+ VIO WIRE VIO/GRN WIRE W/ REAR POWER SEAT WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/GRN WIRE