Lexus GS III facelift (2007-2011) (right rear of engine compt) Wiring diagrams

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 LOUT 3 1 2 +B GND SI A/C AMPLIFIER (BEHIND RIGHT SIDE OF DASH) A/C FUSE A/C PRESSURE SENSOR (LEFT FRONT OF ENGINE COMPT) A/C ROOM TEMPERATURE SENSOR (UNDER CENTER OF DASH) A/C W/P FUSE BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLLH BLRH BLU WIRE BLW BRN WIRE COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DGS TSD ENGINE COOLANT TEMPERATURE SENSOR (TOP RIGHT SIDE OF ENGINE) FDEF GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) HEATER FUSE HOT IN ON OR START HOT IN ON OR START ECU-IG RH FUSE LEFT CENTER J/B (BEHIND RIGHT SIDE OF DASH) LEFT COWL SIDE J/B (BEHIND LEFT END LH-IG FUSE LT BLU WIRE LT GRN WIRE MPX+ MPX- OF DASH) ORG/ WIRE PNK WIRE PRE TSP RH TR PNK WIRE RED WIRE RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RIGHT COWL SIDE J/B (BEHIND RIGHT END OF DASH) ROUT SEAT HEATER SWITCH SEATS SYSTEM SG-1 GND IG+ SG-2 SG-6 SG-4 SMOG VENTILATION SENSOR (RIGHT FRONT OF ENGINE COMPT) SOLAR SENSOR AUTOMATIC LIGHT CONTROL SENSOR (UNDER UPPER CENTER OF DASH) SVSG SW 4 SW 5 TSL TSR VIO 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

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

A/C COMPRESSOR AIR FUEL INJECTOR RATIO DRIVER SENSOR (EDU) (BANK 2 SHIELD SENSOR 1) SHIELD AIR FUEL RATIO SENSOR (BANK 1 SENSOR 1) SHIELD BLK WIRE BLOWER MOTOR BRN WIRE CANISTER PUMP MODULE CRANKSHAFT SPILL POSITION CONTROL SENSOR VALVE SHIELD SHIELD DATA LINK CONNECTOR 3 DEFOG RELAY DISTANCE CONTROL ECU ENGINE CONTROL MODULE ENGINE ENGINE IGNITION CONTROL CONTROL COIL 5 MODULE MODULE ENGINE OIL LEVEL SENSOR ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) FAN MAIN RELAY GRN WIRE GRY WIRE IGNITION IGNITION COIL 2 IGNITION COIL 3 COIL 1 IGNITION IGNITION COIL 6 COIL 4 JUNCTION CONNECTOR KNOCK CONTROL SENSOR (BANK 1, 2) SHIELDS LEFT CENTER J/B (BEHIND MILLIMETER WAVE RADAR SENSOR NCA WIRE NOISE FILTER NOISE FILTER (GHOST BUSTER) POWER STEERING ECU RIGHT CENTER J/B (BEHIND SKID CONTROL ECU SPIRAL CABLE STARTER RELAY STEERING CONTROL ECU TRANSMISSION CONTROL SWITCH WHT WIRE WHT/BLK WIRE YEL WIRE

BATB BLU WIRE BODY ECU BRN WIRE COMPT) DCTY ENGINE OIL LEVEL SENSOR GRN WIRE GRN/RED WIRE GRY WIRE GRY/BLU WIRE HEADLAMP SWIVEL ECU (UNDER LEFT END OF DASH) HOT AT ALL TIMES LCTY LEFT FRONT DOOR COURTESY SWITCH LEFT REAR DOOR COURTESY SWITCH LT BLU WIRE LT GRN/BLK WIRE OF ENGINE COMPT) ORG/ WIRE PARKING BRAKE SWITCH (BEHIND LEFT SIDE OF DASH) PCTY PRESSURE SWITCH RCTY RED WIRE RH FR RH FR DOOR FUSE DOOR FUSE RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) RIGHT FRONT DOOR COURTESY SWITCH RIGHT REAR DOOR COURTESY SWITCH VIO WIRE W/ ADAPTIVE FRONT LIGHTING W/O ADAPTIVE FRONT LIGHTING WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE YEL/BLK WIRE

ABS 1 FUSE (3.5L) ABS 1 FUSE (4.6L) ABS MAIN 2 FUSE ABS MOTOR FUSE ABS- MAIN 1 FUSE AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BL (+) BLK WIRE BLU WIRE BR- CDS FUSE COOLING FANS, AIR CONDITIONING SYSTEMS D/C CUT FUSE DEFOG FUSE DEFOGGER SYSTEM DOME FUSE ENGINE ROOM J/B 1, ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) FAN-2 FUSE FROM ECU-B FUSE (DIAGRAM 1 OF 5) FUSE FUSE (DIAGRAM 1 OF 5) GLW GRN WIRE HEAD LP RELAY HEATER FUSE LH J/B-AM (4.6L) RH J/B-AM (3.5L) FUSE LT BLU WIRE LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) LUGGAGE ROOM J/B ECU LUGGAGE ROOM J/B ECU IG MAIN FUSE MAIN FUSE (DIAGRAM 3 OF 5) MPX-B FUSE NOISE FILTER (GHOST BUSTER) (RIGHT REAR OF ENGINE COMPT) +B PASSIVE RESTRAINT SYSTEM PSB FUSE RED WIRE RELAY RH J/B-AM (4.6L) RR J/B (3.5L) FUSE RR FOG RELAY RR J/B (4.6L) LH J/B-AM (3.5L) FUSE RR S/SHADE RELAY RR TAIL FUSE RR+B RR-B FUSE STOP LP L FUSE STOP LP R FUSE SUPPLEMENTAL RESTRAINTS SYSTEM TLIN TO A/C FUSE (DIAGRAM 4 OF 5) TO LEFT COWL SIDE J/B (DIAGRAM 5 OF 5) TO STOP SW FUSE (DIAGRAM 4 OF 5) WHT WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 +BO 1 2 3 4 5 6 7 8 9 10 IG ESS BAT 1 2 3 4 5 6 7 8 BMV BMU BMW 8 7 SS- SS+ AFS+ IG CAN+ AFS- BLK WIRE BLK/YEL WIRE BLU WIRE BMU+ BMV+ BMW+ BRN WIRE CANL CANH COMBINATION METER COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR 3 (BEHIND LEFT SIDE OF DASH) ECU-B FUSE ECU-IG LH FUSE ENGINE ROOM J/B 1, ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) 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 SIDE J/B (BEHIND LEFT LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF DASH) LG+ LT BLU WIRE LT GRN WIRE LV (+) MPX NCA WIRE PGND PIG CAN- +BI RED WIRE RG+ RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RV SIL RV+ SIDE OF DASH) SIL SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) STEERING ACTUATOR (BEHIND LEFT SIDE OF DASH, NEAR STEERING COLUMN) STEERING CONTROL ECU (UNDER GLOVE COMPARTMENT) STEERING SENSOR (BEHIND LEFT OF DASH, NEAR STEERING COLUMN) VGRS FUSE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 TX- TX+ 10 9 TX- TX+ 24 25 CANL CANH 9 10 TXM+ TXM- BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CAIL CAIH GTX+ GTX- COMPUTER DATA LINES SYSTEM DEFOG FUSE DEFOG RELAY 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) GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GRN/BLK 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 MULTI-DISPLAY NOISE FILTER POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RADIO RECEIVER ASSEMBLY RDEF REAR WINDOW DEFOGGER REAR WINDOW DEFOGGER SWITCH RELAY RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) WHT WIRE WHT/BLK WIRE YEL WIRE

19 31 27 25 STSW KSW 4.6L 3.5L ACCR BATTERY 1 BLK WIRE BLK/ WHT WIRE BLK/BLU WIRE BLK/YEL WIRE BLU WIRE BLU/YEL (OR BLU/RED) WIRE BLU/YEL WIRE 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) ENGINE ROOM R/B 2 (LEFT SIDE OF ENGINE COMPT) GRY WIRE JUNCTION JUNCTION CONNECTOR LT BLU WIRE LT GRN WIRE PARK/NEUTRAL POSITION SWITCH (ON TRANSMISSION) POWER DISTRIBUTION SYSTEM POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RELAY SKSW STSW CTSW ST CUT RELAY STAR STARTER STARTER FUSE STARTER RELAY VIO WIRE WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/BLK WIRE