Lexus GS IV (2011-2015) main body ecu (left end of dash) Wiring diagrams

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

1 2 3 4 5 6 7 8 9 10 11 12 PNK IG WIRE 13 14 CANL CANH 30 16 2 BECU 31 32 ALTB IG 5 15 LIN BLK WIRE BLU WIRE BRN WIRE CAN I/F CLOSE CLS COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISPLAY DRIVER DOWN ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE HOT AT ALL TIMES I/F LED DRIVER ILLB LEFT COWL SIDE J/B LEFT FRONT DOOR COURTESY SWITCH (LEFT FRONT "B" PILLAR) LH J/B-B FUSE LH-IG FUSE LILL LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) MAP LIGHT ASSEMBLY MPX-B FUSE OPN PNK WIRE RED WIRE RELAY ENERGIZED S/ROOF FUSE SLIDING ROOF CONTROL SWITCH SLIDING ROOF SWITCH SPEAKER TELLTALES UP CLS DWN OPN VIO WIRE 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

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