Lexus GS III facelift (2007-2011) 3.5l Wiring diagrams

3.5L 4.6L BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM FLO FRO FRONT HEIGHT CONTROL SENSOR (NEAR LEFT FRONT SHOCK TOWER) GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE H-LP LVL FUSE HEADLAMP LEVELING MOTOR HEADLAMP SWIVEL ECU (UNDER LEFT END OF DASH) HEADLAMP SWIVEL MOTOR HOT IN ON OR START LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) LEFT HEADLAMP ASSEMBLY LT BLU WIRE LT GRN WIRE LT GRN/RED WIRE MOTOR ORG/ WIRE PNK WIRE PNK/GRN WIRE REAR HEIGHT CONTROL SENSOR (UNDER LEFT REAR OF VEHICLE) RED WIRE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RIGHT HEADLAMP ASSEMBLY SENSOR SGF SMGR SMGL SGR SHB SHFL SHG SHRL SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) SKID CONTROL ECU (W/ ACTUATOR) (LEFT REAR OF ENGINE COMPT) SMBL SMBR SMBR SMBL SMR SML SMGL SMGR SML SMR SPDL SPDR SS+ SS- SHRL SBR VIO WIRE VIO/RED WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

3.5L A/C AMPLIFIER (BEHIND CENTER RIGHT OF DASH) A/C FUSE AIR SUS FUSE AMBIENT TEMPERATURE SENSOR (4.6L) (BEHIND LEFT SIDE OF FRONT FASCIA) AUTOMATIC LIGHT CONTROL SENSOR (BEHIND UPPER CENTER OF DASH) BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLLH BLRH BLU WIRE BLU/BLK WIRE BLW BRN WIRE COMPUTER DATA LINES SYSTEM DGS TSD TAM SG SG-2 SG-6 ECU-IG RH FUSE ELECTRONIC SUSPENSION SYSTEM GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT CENTER J/B (BEHIND RIGHT SIDE OF DASH) LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) LH-IG FUSE LOUT LT BLU WIRE LT GRN WIRE MPX+ MPX- ORG/ WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) PRE TSP RH TR PNK WIRE RED WIRE RELAY RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) ROUT SEAT HEATER SWITCH SEATS SYSTEM SG-1 GND IG+ SG-4 SMOG VENTILATION SENSOR (RIGHT FRONT OF ENGINE COMPT) SOL + SVSG TSL TSR VIO WIRE VIO/RED WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 SOL- SOL+ 3 1 2 +B GND 3.5L 4.6L 4.6L 3.5L 4.6L 3.5L SUB FAN MOTOR A/C COMP FUSE A/C COMP RELAY (3.5L) A/C COMPRESSOR (3.5L) (LEFT FRONT OF ENGINE) A/C COMPRESSOR (LEFT FRONT ACMG BLK WIRE BLOWER MOTOR (UNDER LOWER RIGHT SIDE OF DASH) BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE CAN L COMPUTER DATA LINES SYSTEM COOLING FAN ECU ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) ETAM FAN MAIN RELAY FLOW CONTROL VALVE FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN/YEL WIRE GRY WIRE HEATER FUSE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) HOT AT ALL TIMES ENGINE ROOM R/B 2 (LEFT SIDE OF ENGINE COMPT) LCKI LOCK SENSOR LT GRN WIRE MAGNETIC CLUTCH MAIN FAN MOTOR OF ENGINE) RED WIRE RFC TAM VIO/RED WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/BLK WIRE

3.5L A/C AMPLIFIER (BEHIND CENTER RIGHT OF DASH) A/C BLOWER ASSEMBLY (BEHIND RIGHT SIDE OF DASH) A/C EVAPORATOR TEMPERATURE SENSOR BBUS BLK WIRE BLK/YEL WIRE BLU WIRE BUS - BUSG COMBUSTION HEATER GLOW PLUG 1 (AT REAR OF ENGINE) COMBUSTION HEATER GLOW PLUG 2 (AT REAR OF ENGINE) DAMPER SERVO MOTOR (AIR INLET) DAMPER SERVO MOTOR (AIR MIX DRIVER SIDE) DAMPER SERVO MOTOR (AIR MIX FRONT PASSENGER SIDE) DAMPER SERVO MOTOR (AIR VENT MODE) DAMPER SERVO MOTOR (COOL AIR BYPASS) ECU-IG LH FUSE ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) ENGINE ROOM R/B 4 (RIGHT SIDE OF ENGINE COMPT) FUSE GLW GLW RLY 1 RELAY (3.5L) GLW RLY 2 RELAY (3.5L) HOT AT ALL TIMES LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) RED WIRE RELAY ENERGIZED SG-10 WHT WIRE YEL WIRE

11 8 4.6L 3.5L 3.5L BACKUP LIGHT BLK WIRE BLU WIRE BODY ECU BRN WIRE CANL CANH ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT) ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) FRONT CONTROLLER ENGINE ROOM R/B 1 FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE GRY WIRE HEADLAMP SWIVEL ECU (UNDER LEFT END OF DASH) HOT AT ALL TIMES HOT IN ON OR START LEFT CENTER J/B (BEHIND RIGHT SIDE OF DASH) LEFT COWL LEFT COWL SIDE J/B (BEHIND BODY ECU LEFT SIDE OF DASH) LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) LEFT REAR COMBINATION LAMP LH-IG FUSE SIDE J/B (BEHIND LEFT SIDE OF DASH) LUGGAGE ROOM J/B ECU ECUB MPX-B FUSE ORG/ WIRE P-GND PARK/NEUTRAL POSITION SWITCH (ON TRANSMISSION) RED WIRE RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) RIGHT REAR COMBINATION LAMP ROOM J/B RR+B RR-B FUSE ST-PLUG W/ ADAPTIVE FRONT LIGHTING SYSTEM W/O ADAPTIVE FRONT-LIGHTING SYSTEM WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

3.5L 30 31 13 26 38 MPX+ MPX- PRE 4.6L 4.6L 3.5L SUB FAN MOTOR A/C AMPLIFIER (BEHIND CENTER RIGHT OF DASH) A/C PRESSURE SENSOR (LEFT FRONT OF ENGINE COMPT) BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CAN L COMPUTER DATA LINES SYSTEM COOLING FAN ECU CRANKSHAFT POSITION SENSOR (4.6L) (LEFT FRONT OF ENGINE) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT) ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) FAN MAIN RELAY FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) LH-IG FUSE LT BLU WIRE LT GRN WIRE MAIN FAN MOTOR NCA WIRE NE+ PNK NE- WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED (OR RED/BLU) WIRE RED WIRE RELAY RFC SG-2 VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

3.5L 3.5L 4.6L 3.5L 4.6L 4.6L 3.5L ABSORBER CONTROL ECU BLK WIRE BLK) (OR YEL/ WIRE BLU WIRE BODY ECU BRN (OR WHT/BLK) WIRE BRN WIRE CENTER AIR BAG SENSOR ASSEMBLY CG SG CANH SIL D/G DATA LINK CONNECTOR 3 (BEHIND LEFT SIDE OF DASH) DIA ECU (RIGHT REAR OF LUGGAGE COMPT) ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT) FREE FRONT STABILIZER CONTROL ECU (RIGHT FRONT CORNER OF ENGINE COMPT) GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN/BLK WIRE GRY WIRE HIGH/LOW BUS CIRCUIT HOT AT ALL TIMES LEFT CENTER J/B (BEHIND RIGHT SIDE OF DASH) LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MAYDAY ECU (CENTER REAR OF LUGGAGE COMPT) MULTI-DISPLAY OBD FUSE OCCUPANT CLASSIFICATION ECU ORG/ WIRE PNK PNK WIRE PNK WIRE POWER STEERING ECU RED WIRE RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) SIL SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) SKID CONTROL ECU W/ ACTUATOR (3.5L) (LEFT REAR OF ENGINE COMPT) STEERING CONTROL ECU (UNDER GLOVE COMPT) TAC TACH TS TC CANL WFSE BAT VIO WIRE WFSE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

3.5L 4.6L A/C COMPRESSOR BLK WIRE BRAKE ACTUATOR BRAKE FLUID LEVEL WARNING SWITCH BRAKE PEDAL STROKE SENSOR SHIELD BRN WIRE CLEARANCE WARNING ECU COMBINATION METER WIRELESS DOOR LOCK BUZZER EFI 2 RELAY EFI MAIN FRONT RELAY CONTROLLER ENGINE CONTROL MODULE ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) HEADLAMP BEAM LEVEL CONTROL ECU HEADLAMP CLEANER CONTROL RELAY HEADLAMP SWIVEL ECU IG 2 A/F ST CUT RELAY RELAY RELAY JUNCTION JUNCTION CONNECTOR LEFT COWL SIDE J/B (BEHIND LEFT FRONT ABSORBER CONTROL ACTUATOR WATER LEVEL WARNING SWITCH WHT WIRE WHT/BLK WIRE WINDSHIELD DEICER WINDSHIELD WASHER MOTOR WINDSHIELD WIPER MOTOR

1 2 CANH CANL 10 9 CANH CANL 3 2 CANH CANL 3.5L 4.6L 4.6L 3.5L 8 9 CANH CANL 9 10 14 13 CAN- CAN+ CANH CANL 9 22 CANH CANL BLK WIRE BLU WIRE BRN WIRE CAN (+) DISTANCE CONTROL ECU (BEHIND LEFT SIDE OF DASH) ELECTRONIC MODULATED SUSPENSION ENGINE CONTROL MODULE (AT LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) GATEWAY ECU 2 (FRONT OF LUGGAGE COMPT) GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IGN FUSE LEFT CENTER J/B (BEHIND RIGHT SIDE OF DASH) LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) LH-IG FUSE LT GRN WIRE MPX-B FUSE ORG/ WIRE PNK WIRE RED WIRE RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) SEAT BELT CONTROL ECU SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) ST-PLUG STEERING SENSOR (BEHIND LEFT SIDE OF DASH, NEAR STEERING COLUMN) TRANSMISSION CONTROL ECU (4.6L) (LEFT FRONT OF ENGINE COMPT) VIO WIRE WHT WIRE WHT/BLK WIRE YAW RATE SENSOR (UNDER FRONT OF CENTER FLOOR CONSOLE) YEL WIRE

25 24 24 14 13 30 CANH CANL SPD 26 18 14 5 MOL MOPS 3.5L A/C MPX+ AMPLIFIER (BEHIND CENTER MPX- RIGHT OF DASH) AIR BAG SENSOR ASSEMBLY CENTER (UNDER CENTER FLOOR CONSOLE) BLK WIRE BLU WIRE BRN WIRE DISP FUEL SENDER GAUGE FUEL SUCTION PUMP, GAUGE ASSEMBLY GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRY WIRE GRY/BLU (OR GRN/RED) WIRE GRY/BLU WIRE LEFT CENTER J/B (BEHIND LEFT SIDE OF DASH) LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE MULTI-DISPLAY ORG/ WIRE OUTER MIRROR SWITCH ASSEMBLY PBEW PHS PHSG PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) ST-PLUG STEREO COMPONENT AMPLIFIER (AT RIGHT REAR CORNER OF LUGGAGE COMPT) SUN BEAM SENSOR (NEAR CENTER STOPLIGHT) BRAKE FLUID LEVEL WARNING SWITCH (3.5L) TACH TIRE PRESSURE WARNING ECU (BEHIND CENTER OF DASH) VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/BLK WIRE