Lexus GS IV (2011-2015) red Wiring diagrams

5 4 3 2 1 VCSK SKG SKS ABS MTR 1 RELAY BLK WIRE BLU WIRE BRN WIRE BUZZER COMPUTER DATA LINES SYSTEM CTY ENA ENERGIZED LEFT COWL SIDE J/B LH (LEFT END ECU IG OF DASH) FUSE ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 3 ABS MTR 2 RELAY (LEFT REAR OF ENGINE COMPT) FRR+ FRR- GRN WIRE GRY WIRE HALL IC 1 HALL IC 2 BRAKE PEDAL STROKE SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) HOT W/ LEFT J/C LBL LBL PFR LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (LEFT FRONT "B" PILLAR) LEFT REAR SPEED SENSOR (LEFT REAR WHEEL ASSEMBLY) LT GRN WIRE MTT NCA WIRE PNK RL+ RL- WIRE PNK WIRE PRL VBZ PNK WIRE RED WIRE RIGHT FRONT SPEED SENSOR (RIGHT FRONT WHEEL ASSEMBLY) RLA- RLA+ FRA- FRA+ FR+ FR- RLR+ RLR- SKG SKID CONTROL BUZZER ASSEMBLY (LEFT END OF DASH) SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) VCM VCS OFF SWITCH INTEGRATION CONTROL, PANEL ASSEMBLY VCSK VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

ABS 1 FUSE ABS 2 FUSE ABS MAIN 2 FUSE ABS MAIN 3 FUSE ABS- MAIN 1 FUSE ALT BLK WIRE BLU WIRE BRN WIRE CAN I/F COMBINATION METER COMPUTER DATA LINES SYSTEM ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) FUSE GAUGE FUSE GNDA (-) GNDB GRN WIRE GRY WIRE HOT AT ALL TIMES INTEGRATION RELAY LED DRIVER LT GRN WIRE P/I B P/I DC/DC FUSE PNK WIRE RED WIRE RELAY ENERGIZED SPEAKER STOP STOP LIGHT SWITCH (BRAKE PEDAL BRACKET) TELLTALES VIO WIRE WHT WIRE WHT/BLK WIRE YAW RATE SENSOR (UNDER CENTER FLOOR CONSOLE) YEL WIRE

BLK WIRE BLU WIRE BRAKE ACTUATOR ASSEMBLY (LEFT REAR CORNER OF ENGINE COMPT) BRN WIRE COMPUTER DATA LINES SYSTEM FLA- FLR FRA FRR+ GRN WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE HOT AT ALL TIMES HOT W/ HOT W/ LEFT HOT W/ RH LEFT COWL SIDE J/B (LEFT END OF DASH) LH ECU-IG FUSE LH-IG FUSE LT GRN WIRE MTT PFL PFR PNK WIRE PRL PRR- RED WIRE RH SIDE J/B ECU IG (RIGHT END FUSE OF DASH) RIGHT COWL RLA- RLR+ RRA+ RRR + SSI+ STOP FUSE VCM VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+BC BLK WIRE BLU WIRE BRAKE CONTROL POWER SUPPLY (CENTER FRONT OF HV SUPPLY BATTERY ASSEMBLY) BRN WIRE CAPACITOR (HV) FUSE COMPUTER DATA LINES SYSTEM CSS+ ENA ENERGIZED RH COWL ECU IG SIDE J/B FUSE (RIGHT END OF DASH) FAIL FLA- FLA+ FL+ FL- FLR+ FLR- FUSE GRN WIRE GRY WIRE HOLD SWITCH HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) MPX HOT W/ RH HZRI J/C LEFT "C" PILLAR) LEFT COWL SIDE J/B LEFT FRONT SPEED SENSOR (LEFT FRONT WHEEL ASSEMBLY) LH (LEFT END OF DASH) FUSE LT BLU WIRE LT GRN WIRE NCA WIRE NIGHT VIEW NIGHT VIEW ECU (RIGHT SIDE OF LUGGAGE COMPT) NVSW PFL PNK WIRE PRR- RED WIRE RELAY ENERGIZED RIGHT RIGHT REAR SPEED SENSOR (RIGHT REAR WHEEL ASSEMBLY) RR+ RR- CANH CANL RRA- RRA+ RRR+ RRR- SATELLITE SET SWITCH SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) VIO WIRE WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

1 2 3 4 5 6 SG-1 2 1 45 46 CANL CANH 22 20 13 14 9 2 CLTE CLTB CANL CANH 7 8 9 10 11 12 13 14 15 16 17 18 19 20 TSD TSP PRE TAM A/C AMPLIFIER (CENTER OF DASH) A/C FUSE A/C PRESSURE SENSOR (LIQUID TUBE SUB-ASSEMBLY) (LEFT FRONT OF ENGINE COMPT) A/C SWITCH ACCESSORY METER ASSEMBLY (W/ NAVIGATION) AUTOMATIC LIGHT CONTROL SENSOR (UPPER RIGHT SIDE OF DASH) BLK WIRE BLU WIRE BRN WIRE CLTB CLTE COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM CANH CANL DEFOGGER SYSTEM DGS ECO MODE SWITCH ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IG+ TX+ TX- RLIN LEFT COWL SIDE J/B (LEFT END OF DASH) LH ECU-IG FUSE LH-IG FUSE LT BLU WIRE LT GRN WIRE LUGGAGE MAIN BODY ECU (LEFT END OF DASH) MULTI-DISPLAY (W/O NAVIGATION) MULTIMEDIA MODULE RECEIVER ASSEMBLY NANO LOUT ROUT SEATS SYSTEM PNK 24 25 PNK WIRE PNK ECOS SHPE SHDE SEATS SYSTEM WIRE PNK PNK WIRE PNK TR TFAL TFAR TSL TSR WIRE PNK WIRE REAR CONTROL SWITCH REAR SIDE A/C SWITCH RED WIRE RELAY ENERGIZED RH-IG (RIGHT END FUSE OF DASH) RIGHT COWL SIDE J/B ROOM TEMPERATURE SENSOR (COOLER THERMISTOR) (LOWER LEFT CENTER OF DASH) RR ROOM ECU-IG J/B 1 FUSE (LEFT SIDE OF LUGGAGE COMPT) SEATS SYSTEM SEATS SYSTEM PNK RLIN NAIN IDH FDEF RDEF WIRE SHP+ SHD+ SEATS PNK SYSTEM WIRE SOLAR SENSOR TSL TSR TX- TX+ VIO WIRE W/ ION GENERATOR 1 SUB-ASSEMBLY WHT WIRE WHT/BLK WIRE YEL WIRE

+B GND SI 1 2 ACPE ACPB A/C AMPLIFIER (CENTER OF DASH) A/C W/P FUSE FAN 1 FUSE BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COOLING FAN ECU (ON COOLING FAN MOTOR) DGS E.F.I ENGINE COOLANT TEMPERATURE SENSOR (TOP RIGHT REAR OF ENGINE) ECM (ENGINE CONTROL MODULE) (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) FAN 1 RELAY GRN WIRE GRY WIRE HOT AT ALL TIMES HTR FUSE PTC 1 FUSE FUSE HUMIDITY SENSOR (A/C THERMISTOR ASSEMBLY) (IN OVERHEAD CONSOLE) IDH INVERTER W/ CONVERTER (RIGHT REAR CORNER OF ENGINE COMPT) ION GENERATOR 1 (IF EQUIPPED) (CENTER OF DASH) LT BLU WIRE LT GRN WIRE ORG/ WIRE PCL PTC 1 RELAY (IF EQUIPPED) PTC 2 + PTC 2 RELAY (IF EQUIPPED) RED WIRE RFC RIGHT END OF DASH) SEATS SEATS SYSTEM SYSTEM SG-2 SG-3 SG-4 SG-5 TFG TNG VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

+B MREL BATT 10 23 STP CCS 12 25 3 2 46 1 CANP CANN 125 128 126 127 108 30 29 ETA 25 24 22 PNK WIRE 4 1 3 6 MREL ACCELERATOR PEDAL SENSOR ASSEMBLY (TOP OF ACCELERATOR PEDAL ASSEMBLY) BLK WIRE BLU WIRE BLU/BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH CRUISE CONTROL MAIN SWITCH ECM (ENGINE CONTROL MODULE) (LEFT SIDE OF ENGINE COMPT) EFI MAIN FUSE EFI MAIN RELAY 1 EFI MAIN RELAY 2 ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) RH ECU-IG FUSE ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) F/PMP FUSE FUEL PUMP CONTROL ECU (LEFT SIDE OF LUGGAGE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES IGCT 1 FUSE IGCT 5 FUSE IGCT RELAY J/C LT BLU WIRE LT GRN WIRE M- M+ NCA WIRE ON OFF PNK PNK WIRE PNK WIRE POWER MANAGEMENT CONTROL ECU (RIGHT END OF DASH) RED WIRE SFTD SFTU SHIFT LEVER POSITION SENSOR (TRANSMISSION) SPIRAL CABLE (IN STEERING COLUMN) THROTTLE BODY W/ MOTOR ASSEMBLY (TOP REAR OF ENGINE) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

15 16 11 10 FL- FL+ RR+ RR- 8 9 CANL CANH ABS- MAIN 1 FUSE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CAN I/F COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CONTROL SWITCH ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) FUSE GND RL+ RL- FR+ FR- PNK WIRE GRN WIRE GRY WIRE HOT AT ALL TIMES J/C LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT SPEED SENSOR (LEFT FRONT WHEEL ASSEMBLY) LEFT REAR SPEED SENSOR (LEFT REAR WHEEL ASSEMBLY) NCA WIRE NETWORK GATEWAY ECU (RIGHT CENTER OF DASH) PNK WIRE RED WIRE RELAY ENERGIZED RELAY ENERGIZED ENGINE GAUGE ROOM R/B 1 FUSE (LEFT SIDE OF ENGINE COMPT) SFTD 1 2 SFTU SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) SPEED SENSOR STOP FUSE STOP LIGHT SWITCH (BRAKE PEDAL BRACKET) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+S +B 14 13 CANH CANL 2 4 1 ES SIG MPX PNK WIRE 4 5 20 2 8 3 7 PNK WIRE 4 7 EW WF AUTO WIPER SWITCH BLK WIRE BLU WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISPLAY DRIVER DOWN DRIVING SUPPORT ECU (LEFT END OF DASH) ENERGIZED RIGHT COWL SIDE WASH FUSE J/B (RIGHT END OF DASH) ENGINE ROOM R/B 3 (LEFT REAR OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE HI UP NORMAL HI UP NORMAL DOWN OFF HOT W/ INT RELAY LED DRIVER LEFT COWL SIDE J/B (LEFT END OF DASH) LT BLU WIRE LT GRN WIRE MAIN BODY ECU ACAN MAP LIGHT ASSEMBLY OF DASH) OFF WIPER SWITCH PNK 15 1 26 WIRE PNK WIRE RAIN SENSOR (FRONT CENTER OF ROOF) RED WIRE TAIL TELTALES I/F VIO WIRE VOLUME SWITCH INT SWITCH WASH WASHER SWITCH WATER LEVEL WARNING SWITCH (IN WASHER FLUID RESERVOIR) WHT WIRE WHT/BLK WIRE WINDSHIELD WASHER MOTOR, PUMP (ON WASHER FLUID RESERVOIR) WINDSHIELD WIPER SWITCH ASSEMBLY WIP RELAY WIP-S FUSE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 IG 1 2 3 4 5 FR+ FR- RR+ RR- GND 13 14 4 16 CANL CANH PRG RDA 2 1 F OT F IN 2 1 R OT R IN PNK WIRE 32 31 30 11 IG ALTB BECU 6 7 8 SIL ANTENNA ANTENNA AMPLIFIER ASSEMBLY (RIGHT "C" PILLAR) BLK WIRE BLU WIRE CAN I/F CERTIFICATION ECU (RIGHT END OF DASH) CLSW RDA PRG CSEL +B ALSI DATA +5 ASEL COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISPLAY DRIVER DRIVER TIRE PRESSURE MONITOR INITIATOR (W/ AUTO LOCATION) (RIGHT END OF DASH) ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) RH-IG FUSE ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) FRONT TIRE PRESSURE MONITOR INITIATOR (LEFT FRONT WHEELWELL) FUSE GAUGE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES LED DRIVER LEFT COWL SIDE J/B (LEFT END OF DASH) LH J/B-B LH-IG FUSE LT GRN WIRE LUGGAGE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) MAIN BODY ECU (LEFT END OF DASH) MPX-B FUSE NCA WIRE PNK 51 64 63 65 WIRE PNK 7 6 15 16 CSEL RDAM RCO ASEL WIRE PNK WIRE REAR TIRE PRESSURE MONITOR INITIATOR (LEFT SIDE OF LUGGAGE COMPT) RED WIRE RELAY ENERGIZED RR J/B-B FUSE TELLTALES TIRE PRESSURE WARNING RESET SWITCH (TIRE PRESSURE WARNING SWITCH 1) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE