Lexus GS IV (2011-2015) org/ Wiring diagrams

2 3 4 5 SLU- SLU+ SLT- SLT+ BLK WIRE BLU WIRE BRN WIRE COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM ECM (ENGINE CONTROL MODULE) (LEFT SIDE OF ENGINE COMPT) ECO ECOS ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID (TRANSMISSION) GRN WIRE GRY WIRE LT BLU WIRE LT GRN WIRE NORMAL OIL ORG/ WIRE PNK 23 22 25 PWR SNWI SPCN WIRE PNK SPSW WIRE PNK WIRE RED WIRE SFTU SFTD SR SLT- SLU+ SNOW SPORT SWITCH VIO WIRE W/ ADAPTIVE VARIABLE SUSPENSION W/O ADAPTIVE VARIABLE SUSPENSION 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 SSRC SG L+ C+ 1 2 3 4 5 6 MR+ PEL- ISR+ PEL+ MR- ISR- BACK BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DBCL DRDC GND L- C- GRN WIRE GRY WIRE IG CANP CANN LEFT LUMBAR SUPPORT MOTOR (DRIVER'S SEAT) LEFT POSITION CONTROL ECU ASSEMBLY (UNDER DRIVER'S SEAT) LEFT POWER SEAT PELVIC SUPPORT MOTOR LEFT POWER SEAT RECLINING MOTOR (UNDER DRIVER'S SEAT) LEFT POWER SEAT SHOULDER SUPPORT MOTOR LFT+ SLD- FRV- PNK WIRE LT BLU WIRE LT GRN WIRE MR- MRE O/P ORG/ WIRE PASSIVE RESTRAINTS SYSTEM PEL+ PELE PNK SSLB SSRR SSPL SSIR WIRE PNK WIRE RED WIRE SGND SLD+ FRV+ RCL+ LFT- RCL- SMR SPEL SSFV SSRS SSMR SSRL SYSB VCC VIO WIRE WHT 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 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

20 18 17 GRF GSN GCS 38 39 40 MCS MSN MRF 9 7 6 8 CRFG CSNG GCSG BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE ENGINE CONTROLS SYSTEM GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE HYBRID VEHICLE TRANSMISSION INVERTER W/ CONVERTER (RIGHT REAR CORNER OF ENGINE COMPT) J/C LT BLU WIRE LT GRN WIRE MCSG MSNG MRFG ORG/ WIRE PNK WIRE RED WIRE RIGHT END OF DASH) SFTD SFTU SHIELD SHIELD 1 2 3 SHIELD 18 19 SHIELD 28 29 THO 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

ACPB ACPE AIR CONDITIONING SYSTEM AMD BAT FAN RELAY (HV) BATT FAN (HV) FUSE BLK WIRE BLU WIRE BRN WIRE CBI CEI DC/DC-S (HV) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) DC/DC FUSE HYBRID VEHICLE MOTOR HYBRID VEHICLE TRANSMISSION ASSEMBLY IDH IGCT ILKI INVERTER BUS BAR PLATE SUB ASSEMBLY (RIGHT REAR OF ENGINE COMPT) INVERTER W/ CONVERTER ASSEMBLY LEFT "C" PILLAR) LEFT BATTERY COOLING BLOWER ASSEMBLY LT BLU WIRE LT GRN WIRE LUGGAGE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) MCS MCSG MMT MMTG MRF MRFG MSN MSNG NODD OHG OHU OHV OHW OIGH OIL PUMP MOTOR CONTROLLER (ON OIL PUMP MOTOR) OIL PUMP W/ MOTOR ASSEMBLY (RIGHT SIDE OF ENGINE) OMT OMTG OPST ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK WIRE RED WIRE REQ+ RIGHT BATTERY COOLING BLOWER ASSEMBLY (RIGHT SIDE OF HV BATTERY ASSEMBLY) RIGHT END OF DASH) SHIELD SIG VIO WIRE VLO WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 GND VOUT VC 1 4 CBPE CEPE 4 1 SMRB 5 6 PNK WIRE 53 54 PNK WIRE BATTERY THERMOMETER SENSOR (ON BATTERY) BLK ORG/ WIRE BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BTH+ BUSBAR MODULE BUSBAR MODULE HYBRID VEHICLE BATTERRY BUSBAR MODULE BUSBAR MODULE HYBRID VEHICLE BATTERY BUSBAR MODULE CBI CEI COMPUTER DATA LINES SYSTEM CURRENT SENSOR ELECTRONIC POWER STEERING ETHB GBO GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HV SUPPLY BATTERY ASSEMBLY HYBRID BATTERY JUNCTION BLOCK ASSEMBLY IGCT LT BLU WIRE LT GRN WIRE MAIN RELAY OIL PRESSURE SENSOR ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE RECHARGE RELAY RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RESISTOR SERVICE PLUG SMRB SMRG SMRP SPDI SYSTEM TCO THB THERMISTOR VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

ACCELERATOR PEDAL POSITION SENSOR ASSEMBLY (TOP OF ACCELERATOR PEDAL ASSEMBLY) BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE HYBRID VEHICLE TRANSMISSION (TRANSMISSION WIRE) LT BLU WIRE LT GRN WIRE ORG/ WIRE PADDLE SHIFT SWITCH PNK WIRE RED WIRE RELAY ENERGIZED RH ECU-IG FUSE RIGHT COWL SIDE J/B RIGHT END OF DASH) SFTD SFTU SHIFT DOWN SHIFT UP SPIRAL CABLE (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY THO TRANSMISSION CONTROL SWITCH (BASE OF SELECTOR LEVER ASSEMBLY) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE