Lexus GS IV (2011-2015) igct relay Wiring diagrams

+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

ABE BDR BLK WIRE BLU WIRE CANN CANP COMPUTER DATA LINES SYSTEM CPUB ENGINE ROOM R/B (LEFT SIDE GAUGE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGCT 1 MAIN FUSE IGCT 5 FUSE IGCT RELAY LSWE LT BLU WIRE LT GRN WIRE OF ENGINE COMPT) OSCE PNK WIRE RED WIRE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT FRONT DOOR LOCK ASSEMBLY (REAR OF RIGHT FRONT DOOR) RIGHT REAR DOOR LOCK ASSEMBLY (REAR OF RIGHT REAR DOOR) SIG UNLOCK DETECTION VIO WIRE WHT WIRE WHT/BLK WIRE

AIR BAG SENSOR ASSEMBLY BLK WIRE BLK/ WHT WIRE BLOWER MOTOR BRAKE ACTUATOR BRAKE FLUID LEVEL WARNING SWITCH BRN WIRE COMPRESSOR W/ MOTOR ASSEMBLY ECM (ENGINE CONTROL MODULE) EFI EFI A/F MAIN 1 MAIN 2 RELAY RELAY RELAY FRONT WIPER DEICER HEADLIGHT CLEANER CONTROL RELAY IGCT RELAY INTEGRATION RELAY INV W/P FAN 1 RELAY RELAY RELAY INVERTER W/ CONVERTER INVERTER WATER PUMP ASSEMBLY LEFT FRONT ABSORBER CONTROL ACTUATOR LEFT REAR SPEED SENSOR SHIELD LEFT RIGHT FRONT FRONT SPEED SPEED SENSOR SENSOR SHIELD SHIELD LEVEL WARNING SWITCH ASSEMBLY MULTI-MEDIA MODULE RECEIVER ASSEMBLY NCA WIRE OIL PMP POWER STEERING ECU RELAY RIGHT END OF DASH) RIGHT FRONT ENGINE ABSORBER WATER CONTROL PUMP ACTUATOR RIGHT REAR SPEED SENSOR SHIELD SKID (LEFT SIDE OF CONTROL ENGINE COMPT) ECU ENGINE ROOM J/B 1 SKID CONTROL ECU WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE WINDSHIELD WIPER MOTOR WIRELESS DOOR LOCK BUZZER

1 2 3 4 5 6 7 GND +B CANP 1 2 CANH CANL 25 24 PNK WIRE 8 9 10 11 12 13 14 15 16 17 18 19 20 PNK ECUB IG CANN WIRE BLK WIRE BLU WIRE CERTIFICATION ECU (RIGHT END OF DASH) COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES LEFT COWL SIDE J/B TI, TE (LEFT END FUSE OF DASH) IGCT 1 FUSE IGCT 5 FUSE IGCT RELAY LEFT FRONT MULTIPLEX NETWORK DOOR ECU (IN LEFT FRONT DOOR) LEFT SEAT MEMORY SWITCH LH-IG FUSE LT BLU WIRE LT GRN WIRE MM MSWE CANN CANP GND PNK WIRE MPX-B FUSE MSW MSW TEM- TIM- MULTIPLEX TILT, TELESCOPIC ECU (ON STEERING COLUMN) PNK WIRE POWER MANAGEMENT CONTROL ECU (RIGHT END OF DASH) RED WIRE RELAY ENERGIZED SET- TELESCO SHORTEN TELESCO STRETCH TELESCOPIC MOTOR TEM TES TILT DOWN TILT MOTOR TILT STEERING GEAR W/ MOTOR (UNDER LEFT SIDE OF DASH) TILT UP TILT, TELESCOPIC SWITCH TIM TIS VC TEM+ TIM+ VCE VCI VCI VCE TES TIS PNK WIRE VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

ABE BDR BLK WIRE BLU WIRE CANN CANP COMPUTER DATA LINES SYSTEM CPUB ENGINE ROOM R/B (LEFT SIDE GAUGE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGCT 1 MAIN FUSE IGCT 5 FUSE IGCT RELAY LSWE LT BLU WIRE LT GRN WIRE OF ENGINE COMPT) OSCE PNK WIRE RED WIRE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT FRONT DOOR LOCK ASSEMBLY (REAR OF RIGHT FRONT DOOR) RIGHT REAR DOOR LOCK ASSEMBLY (REAR OF RIGHT REAR DOOR) SIG UNLOCK DETECTION VIO WIRE WHT WIRE WHT/BLK WIRE

1 2 3 4 5 6 7 8 GRF GSN GCS GMT GRFG GSNG GCSG GMTG 33 32 4 6 7 24 25 26 27 35 34 THO ETHO 4 1 MREL 8 7 6 5 4 3 2 1 MMTG MCSG MSNG MRFG MMT MCS MSN MRF BLK WIRE BLU WIRE BRN WIRE ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) GMTG GMT MMT MMTG GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES HYBRID VEHICLE GENERATOR HYBRID VEHICLE MOTOR HYBRID VEHICLE TRANSMISSION ASSEMBLY IGCT 1 FUSE IGCT 4 FUSE IGCT 5 FUSE IGCT RELAY LT GRN WIRE ORG/ WIRE PNK WIRE POWER MANAGEMENT CONTROL ECU (RIGHT END OF DASH) RED WIRE RH ECU-IG FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RV FD MJ PNK WIRE SFTU SFTD SHIELD 1 2 3 SHIELD 18 19 SHIELD 28 29 SHIELD 3 2 1 VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+BWP AIR CONDITIONING SYSTEM BLK WIRE BLU WIRE BRN WIRE CLK+ CLK- CLK+ HSDN REQ- REQ+ HTM- HTM+ ENGINE COMPT) GCS GCSG GI MTH- MTH+ ILK NODD GMT GMTG GRF GRFG GRN WIRE GRY WIRE GSN GSNG HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B 1 OIL PMP FUSE (LEFT SIDE OF ENGINE COMPT) HSDN HTM- HYBRID VEHICLE GENERATOR HYBRID VEHICLE TRANSMISSION ASSEMBLY IGCT 1 FUSE IGCT 2 FUSE IGCT 3 FUSE IGCT 4 FUSE IGCT 5 FUSE IGCT RELAY ILK ILKO INTERLOCK SWITCH (SERVICE PLUG GRIP) (RIGHT FRONT OF HV SUPPLY BATTERY ASSEMBLY) INV W/P FUSE INV W/P RELAY INVERTER W/ CONVERTER ASSEMBLY (RIGHT REAR CORNER OF ENGINE COMPT) LT BLU WIRE LT GRN WIRE MREL FCTL MTH+ NIWP IWP VLO NWP OIL PUMP RELAY ORG/ WIRE POWER MANAGEMENT CONTROL ECU (RIGHT END OF DASH) RED WIRE SHIELD SHIELD 7 6 4 2 5 3 1 SWP TPST VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE