Lexus GS IV (2011-2015) (base of left kick panel) 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

+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

5 4 FRWA 6 3 1 2 PB IG HDLO 7 4 WF EW AUTO BLK WIRE DRIVING SUPPORT ECU (LEFT END OF DASH) ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE H-LP CLN FUSE HEAD HEADLIGHT CLEANER CONTROL RELAY (BELOW LEFT HEADLIGHT) HEADLIGHT CLEANER MOTOR, PUMP (ON WASHER FLUID RESERVOIR) HEADLIGHT CLEANER SWITCH HEADLIGHT DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES INTEGRATION CONTROL, PANEL ASSEMBLY LEFT COWL SIDE J/B (LEFT END OF DASH) LH-IG FUSE LIGHT CONTROL SWITCH LT GRN WIRE MAIN BODY ECU OFF TAIL WASH WASH FUSE WASHER SWITCH WHT WIRE WHT/BLK WIRE WINDSHIELD WASHER MOTOR, PUMP (ON WASHER FLUID RESERVOIR) WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

1 2 3 4 5 6 7 8 M- M+ 10 6 5 VT TSEN AUTO AUTO IND BLK WIRE BLU WIRE CAN I/F CANH CANL 28 29 COMPUTER DATA LINES SYSTEM COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ECU-B 3 FUSE ELECTRIC PARKING BRAKE SWITCH ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) EPB GAUGE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSIBLE LINK EPB FUSE BLOCK (LEFT REAR OF LUGGAGE COMPT) HOT AT ALL TIMES LUGGAGE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) HOT W/ IG AUTO PNK WIRE ILL ILL IND LED DRIVER LEFT COWL SIDE J/B (LEFT END OF DASH) LH ECU-IG FUSE LOCK LPA TX +B MPX-B FUSE NCA WIRE PARKING BRAKE ACTUATOR (LEFT REAR OF LUGGAGE COMPT) PARKING BRAKE ECU (LEFT SIDE OF LUGGAGE COMPT) PARKING LIGHT SWITCH ASSEMBLY PNK WIRE RED WIRE RELEASE RR ECU-IG FUSE TELLTALES TGND TGND 1 2 VIO WIRE VT TSEN WHT WIRE WHT/BLK WIRE YEL WIRE

13 14 CANL CANH 31 32 30 ALTB IG BECU 7 10 6 11 9 12 +B +5 CSEL ASEL DATA GND 7 12 CSWE 9 10 3 5 8 CANP CANN ASEL BLK WIRE BLU WIRE CERTIFICATION ECU (RIGHT END OF DASH) CLUTCH COMPUTER DATA LINES SYSTEM CPS+ CPSE CSEL CSG CSV PAWL SWG ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ LEFT COWL SIDE J/B (LEFT END OF DASH) LH J/B-B FUSE LH-IG FUSE LT BLU WIRE LUGGAGE CLOSER MOTOR ASSEMBLY (LEFT FRONT OF LUGGAGE COMPT) LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY (CENTER REAR OF LUGGAGE COMPT LID) LUGGAGE DOOR OPENING CANCEL LUGGAGE DOOR OPENING SWITCH ASSEMBLY LUGGAGE ELECTRICAL KEY SWITCH LUGGAGE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) MAIN BODY ECU (LEFT END OF DASH) MONITORING SYSTEM RECEIVER ASSEMBLY) MPX-B FUSE OF DASH) ORG/ WIRE PAWL HAWL CLS FSW PNK ECUB GND WIRE PNK WIRE POWER TRUNK LID CLOSE SWITCH DOOR CONTROL SWITCH PTL FUSE RDAM RED WIRE RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END RLY 1 RELAY ENERGIZED RR ECU-IG FUSE RR J/B-B FUSE SWITCH ASSEMBLY TMSW TSW WHT WIRE WHT/BLK WIRE YEL WIRE

+B PGND 1 2 3 4 5 6 7 8 9 10 MOR- MOR+ MOL+ MOL- 1 2 3 4 5 6 7 8 CANH CANL 29 30 COMPUTER DATA LINES SYSTEM 5 39 PBSW COMPUTER DATA LINES SYSTEM 17 18 40 BLK WIRE BLU WIRE CAN I/F CANH CANL 28 29 30 COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DRIVING SUPPORT ECU (LEFT END OF DASH) ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE HOT AT ALL TIMES LUGGAGE PSB FUSE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) HOT IN ON OR START RIGHT COWL COWL SIDE J/B RH ECU IG FUSE (RIGHT END OF DASH) JUNCTION CONNECTOR LEFT FRONT SEAT OUTER BELT ASSEMBLY (BASE OF LEFT "B" PILLAR) LT GRN WIRE MILLIMETER WAVE RADAR SENSOR (CENTER OF FRONT FASCIA) PRE-COLLISION SYSTEM CANCEL SWITCH ASSEMBLY RED WIRE RIGHT FRONT SEAT OUTER BELT ASSEMBLY (BASE OF RIGHT "B" PILLAR) SEAT BELT CONTROL ECU (LEFT SIDE OF LUGGAGE COMPT) SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

23 15 LBE- LBE+ 3 4 1 6 5 GND FSR- FSR+ IG +B 9 17 FSR+ FSR- AIR BAG SENSOR ASSEMBLY BLK WIRE BLU WIRE CAN I/F CANL CANH COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE HEAD HEAD OFF AUTO TAIL HEADLIGHT DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT AT ALL TIMES LEFT COWL SIDE J/B (LEFT END OF DASH) LH J/B-B FUSE LED DRIVER LEFT FRONT DOOR COURTESY LIGHT SWITCH (LEFT "B" PILLAR) LEFT REAR WEIGHT DETECTION SENSOR LH-IG FUSE LIGHT CONTROL SWITCH LT GRN WIRE MAIN BODY ECU MPX-B FUSE OCCUPANT DETECTION ECU (UNDER FRONT PASSENGER'S SEAT) ODS FUSE OFF AUTO TAIL PNK WIRE RED WIRE RELAY ENERGIZED RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END AIR BAG FUSE OF DASH) RIGHT FRONT SEAT INNER BELT (UNDER FRONT PASSENGER'S SEAT) RIGHT REAR WEIGHT DETECTION SENSOR SPEAKER TAIL TELLTALES VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

COMPUTER PNK DATA LINES SYSTEM WIRE ENGINE ROOM GRN WIRE HOT AT ALL TIMES LEFT COWL SIDE J/B STOP (LEFT END FUSE OF DASH) HOT W/ HOT W/ IGCT RELAY ENERGIZED IGCT 5 R/B 1 FUSE (LEFT SIDE OF ENGINE COMPT) LH-IG FUSE LT GRN WIRE P POSITION DETECTION SWITCH POWER MANAGEMENT CONTROL ECU (RIGHT END OF DASH) RED WIRE RELAY ENERGIZED SHIFT LEVER POSITION SENSOR SLS+ IG STP SLS- SHIFT LOCK SOLENOID TRANSMISSION WHT WIRE WHT/BLK 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

22 24 16 LSWE KUL KL 3 7 8 1 SIG CANN CANP GND 7 32 11 10 30 6 ACTG IG 9 10 3 5 8 CANP CANN ACTD BECU TR+ BLK WIRE BLU WIRE CERTIFICATION ECU (RIGHT END OF DASH) COMPUTER DATA LINES SYSTEM D DOOR UNLOCK RELAY D/L 1 FUSE D/L 2 FUSE ENGINE ROOM FLLK (UNDER CENTER CONSOLE) FUEL LID LOCK W/ MOTOR ASSEMBLY (LEFT SIDE OF LUGGAGE COMPT) FUEL OPN RELAY GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES LUGGAGE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) TRK OPN FUSE LEFT FRONT DOOR LOCK ASSEMBLY (REAR OF LEFT FRONT DOOR) LEFT FRONT MULTIPLEX NETWORK DOOR ECU (IN LEFT FRONT DOOR) LH J/B-B FUSE LOCK LOCK UN- LT BLU WIRE LT GRN WIRE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY (CENTER REAR OF LUGGAGE COMPT LID) LUGGAGE DOOR OPENING CANCEL LUGGAGE DOOR OPENING SWITCH ASSEMBLY LUGGAGE ELECTRICAL KEY SWITCH MAIN BODY ECU (LEFT END OF DASH) MPX-B FUSE ECU-B FUSE R/B 1 (LEFT SIDE OF ENGINE COMPT) PNK 19 13 14 LGCY CANL CANH WIRE PNK PNK WIRE PNK WIRE POWER CHANGE RELAY RED WIRE RELAY ENERGIZED LEFT COWL SIDE J/B LH-IG FUSE (LEFT END OF DASH) RIGHT COWL SIDE J/B (RIGHT END OF DASH) SWITCH ASSEMBLY TMSW TSW TRK OPN RELAY VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE