Lexus GS III facelift (2007-2011) a/c amplifier (behind center right of dash) Wiring diagrams

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

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

16 8 7 2 10 3 LOUT ROUT A/C AMPLIFIER (BEHIND CENTER RIGHT OF DASH) BLU WIRE CTB FR S/HTR RH FUSE GRN WIRE GRY WIRE HEATER 1 HEATER 2 SEAT BACK HOT AT ALL TIMES LT BLU WIRE LT GRN WIRE ORG/ WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RELAY RH-IG FUSE RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) RIGHT FRONT SEAT HEATER (IN FRONT PASSENGER'S SEAT CUSHION) SEAT CUSHION) SEAT HEATER CONTROL SG-4 SIGN SWR THR+ VIO WIRE VSVG WHT WIRE WHT/BLK 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 2 PNK WIRE 31 30 MPX- MPX+ A/C AMPLIFIER (BEHIND CENTER RIGHT OF DASH) AIR BAG SENSOR ASSEMBLY CENTER (UNDER CENTER FLOOR CONSOLE) ATX- BLK WIRE BLU WIRE BODY ECU BRN WIRE CERTIFICATION ECU (RIGHT REAR CORNER OF LUGGAGE COMPT) CMP DASH) GRN/RED WIRE GRY WIRE GRY/BLU WIRE HEADLAMP SWIVEL ECU (UNDER LEFT END OF DASH) LEFT COWL SIDE J/B (BEHIND LEFT SIDE OF LEFT FRONT DOOR ECU (IN DRIVER'S DOOR) LEFT REAR DOOR ECU (IN LEFT REAR DOOR LT BLU WIRE LT GRN WIRE LUGGAGE ROOM J/B ECU OUTER MIRROR SWITCH ASSEMBLY PNK 5 8 WIRE PNK WIRE POWER WINDOW MASTER SWITCH RADIO RECEIVER ASSEMBLY RED WIRE RIGHT FRONT DOOR ECU (IN RIGHT FRONT DOOR) RIGHT FRONT POWER WINDOW SWITCH RIGHT REAR DOOR ECU (IN RIGHT REAR DOOR) SGND STEREO COMPONENT AMPLIFIER (AT RIGHT REAR CORNER OF LUGGAGE COMPT) TXM- W/ ADAPTIVE FRONT LIGHTING SYSTEM W/O ADAPTIVE FRONT-LIGHTING SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE

+IG 11 12 6 7 15 13 14 FSR+ FSR- PS VPS GPS BSW BGND PNK PNK WIRE 18 10 17 9 RBE- RBE+ FSR- FSR+ 30 31 MPX+ MPX- 5 8 PNK WIRE A/C AMPLIFIER (BEHIND CENTER RIGHT OF DASH) AIR BAG SENSOR ASSEMBLY CENTER (UNDER CENTER FLOOR CONSOLE) BLK WIRE BLU WIRE BUCKLE SWITCH COMBINATION METER COMPUTER DATA LINES SYSTEM FRONT SEAT INNER BELT (DRIVER'S SIDE) (UNDER LEFT SIDE OF DRIVER'S SEAT) FRONT SEAT INNER BELT (FRONT PASSENGER'S SIDE) GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GAUGE FUSE GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) LBE+ LBE- LEFT CENTER J/B (BEHIND LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MPX+ MPX- MPX-B FUSE MULTI-DISPLAY MULTI-INFORMATION DISPLAY OCCUPANT CLASSIFICATION SENSOR OCCUPANT DETECTION SENSOR ORG/ WIRE OUTER MIRROR SWITCH ASSEMBLY PASSENGER SEAT BELT WARNING LAMP PBEW PBLT PNK WIRE PS VPS GPS RBE+ RED WIRE RELAY ENERGIZED RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) SEAT BELT IND TELLTALE LAMP ASSEMBLY TIRE PRESSURE MONITOR ECU (BEHIND CENTER OF DASH) VIO WIRE W/ OCCUPANT CLASSIFICATION SYSTEM W/O OCCUPANT CLASSIFICATION SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 IG CLSW IDSW 25 5 COMPUTER DATA LINES SYSTEM 30 31 MPX+ MPX- 5 8 PNK WIRE A/C AMPLIFIER (BEHIND CENTER RIGHT OF DASH) AIR BAG SENSOR ASSEMBLY CENTER (UNDER CENTER FLOOR CONSOLE) BLK WIRE BLU WIRE BLU/WHT WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM DISPLAY INFORMATION DOME FUSE ECU-IG RH FUSE GATEWAY ECU (BEHIND RIGHT SIDE OF DASH) GAUGE FUSE GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) MPX-B FUSE LT BLU WIRE LT GRN WIRE MASTER IND MULTI- OUTER MIRROR SWITCH ASSEMBLY PNK WIRE RED WIRE RELAY RELAY ENERGIZED RIGHT CENTER J/B (BEHIND RIGHT SIDE OF DASH) RIGHT COWL SIDE J/B (BEHIND RIGHT SIDE OF DASH) TIRE PRESSURE IND TIRE PRESSURE WARNING ANTENNA, RECEIVER (CENTER OF ROOF) TIRE PRESSURE WARNING ECU (BEHIND CENTER OF DASH) TIRE PRESSURE WARNING RESET SWITCH TIRE PRESSURE WARNING SELECT SWITCH VIO WIRE VIO/YEL WIRE WHT/BLK WIRE YEL WIRE