Lexus GS IV (2011-2015) main body ecu Wiring diagrams

+B FRV+ RCL+ LFT+ RCL- LFT- 1 2 3 4 5 6 7 8 9 10 11 12 SGND BACK BLK WIRE BLU WIRE BRN WIRE CANN CANN CANP DRDC DBCL SSRR SYSB CANP COMPUTER DATA LINES SYSTEM DOWN ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) FL (-) FUSE GND SLD+ SLD- FRV- GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES MPX-B FUSE LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT POWER SEAT SWITCH ASSEMBLY LEFT POWER SEAT LIFT MOTOR LEFT POWER SEAT RECLINING MOTOR (UNDER DRIVER'S SEAT) LT GRN WIRE MAIN BODY ECU O/P PASSIVE RESTRAINTS SYSTEM PNK WIRE RED WIRE SSFV SSRL SSRS VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BACK BLK WIRE BLU WIRE BRN WIRE CANN CANP CLS COMPUTER DATA LINES SYSTEM DOWN ENGINE ROOM R/B 1 (RIGHT REAR FL (-) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES MPX-B FUSE LEFT COWL SIDE J/B (BEHIND LEFT END OF DASH) LEFT FRONT POWER SEAT SWITCH ASSEMBLY LEFT POWER SEAT CUSHION MOTOR LEFT POWER SEAT LIFT MOTOR LH-IG FUSE LT BLU WIRE LT GRN WIRE MAIN BODY ECU O/P OF ENGINE COMPT) PNK WIRE RED WIRE SPR VCC VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

ACAN AIR CONDITIONING SYSTEM AUTOMATIC LIGHT CONTROL SENSOR (UPPER RIGHT SIDE OF DASH) BLK WIRE BLU WIRE CENTRAL STOP LIGHT ASSEMBLY CLTB CLTE CLTS COMPUTER DATA LINES SYSTEM FUSE GNDA (-) GNDB GRN WIRE GRY WIRE HEAD HMSL NOISE FILTER (CENTER STOP LIGHT, LUGGAGE COMPARTMENT LIGHT) HOT AT ALL TIMES LCTY LEFT "C" PILLAR) LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT REAR COMBINATION LIGHT ASSEMBLY LH J/B-B FUSE LH-IG FUSE LT BLU WIRE LT GRN WIRE LUGGAGE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) MAIN BODY ECU MARKER SIDE PNK WIRE RCTY RED WIRE RELAY ENERGIZED RIGHT REAR COMBINATION LIGHT ASSEMBLY SIDE MARKER SOLAR SENSOR STOP STOP FUSE TAIL TAIL/STOP TLP TRN+ TSL TSR TURN VEHICLE APPROACHING SPEAKER CONTROLLER (RIGHT SIDE OF LUGGAGE COMPT) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

AIR BAG SENSOR ASSEMBLY BLK WIRE BRN WIRE CLEARANCE WARNING ECU ASSEMBLY CLOCK ASSEMBLY COMBINATION METER ASSEMBLY A/C AMPLIFIER ASSEMBLY COMBINATION SWITCH ASSEMBLY DATA LINK CONNECTOR 3 DRIVER MONITOR ECU ASSEMBLY ELECTRIC PARKING BRAKE SWITCH ASSEMBLY HEADLIGHT DIMMER SWITCH ASSEMBLY INTEGRATION CONTROL, PANEL ASSEMBLY JUNCTION CONNECTOR LEFT COWL SIDE J/B (BEHIND LEFT END OF DASH) LEFT VISOR ASSEMBLY LUGGAGE DOOR OPENING SWITCH ASSEMBLY MAIN BODY ECU MULTIPLEX TILT, TELESCOPIC ECU OPTION CONNECTOR (GLASS BREAKAGE SENSOR ECU) OPTION CONNECTOR (REMOTE ENGINE STARTER) PARKING LIGHT SWITCH ASSEMBLY POWER OUTLET SOCKET STEERING ASSEMBLY WHEEL HEATER CONTROL ASSEMBLY PRE-COLLISION SYSTEM CANCEL SWITCH (PRE-CRASH SYSTEM CANCEL SWITCH ASSEMBLY) REAR SUNSHADE SWITCH ASSEMBLY REMOTE OPERATION SWITCH RIGHT VISOR ASSEMBLY SATELLITE SWITCH SET SHIFT LOCK CONTROL ECU (TRANSMISSION FLOOR SHIFT ASSEMBLY) SPIRAL CABLE (STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY STEERING SENSOR TILT STEERING GEAR ASSEMBLY W/ MOTOR TIRE PRESSURE WARNING RESET SWITCH (TIRE PRESSURE WARNING SWITCH 1) TRIP SWITCH W/ NAVIGATION W/O NAVIGATION W/ VGRS W/O VGRS WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY

BLK WIRE BLU WIRE ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) GRN WIRE HORN HORN (HIGH) (FRONT OF RIGHT SIDE OF RADIATOR) HORN (LOW) (FRONT OF LEFT SIDE OF RADIATOR) HORN FUSE HORN RELAY HORN SWITCH HOT AT ALL TIMES LEFT COWL SIDE J/B (LEFT END OF DASH) MAIN BODY ECU PNK WIRE SPIRAL CABLE (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY

ALT ANTI-LOCK BRAKES SYSTEM ANTI-LOCK BRAKES SYSTEM NAVIGATION SYSTEM BLK WIRE BLU WIRE DEF DEFOGGER SYSTEM DRL DRLL DRLR ENGINE ROOM J/B 1 ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 1 FFG FFGL FFGR GNDA (-) GNDB GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HLHL HLHR HLHS HOT AT ALL TIMES INTEGRATION CONTROL, PANEL ASSEMBLY INTEGRATION RELAY LEFT COWL SIDE J/B (LEFT END OF DASH) LH ECU-IG FUSE LH-IG FUSE LT GRN WIRE MAIN BODY ECU P/I DC/DC FUSE P/I-B 1 FUSE PANL PNK WIRE PNL PNLS POWER WINDOWS SYSTEM RDEF RED WIRE RELAY ENERGIZED RSSH SEATS SYSTEM SHAD STOP TAIL TLP VIO WIRE WHT WIRE WHT/BLK WIRE WIPER/WASHER SYSTEM

1 10 9 MV M+ MH 15 3 11 EC- MR MF 3 11 MR MF 6 14 13 5 4 VSRL 6 14 13 5 4 VSRR 7 8 CANN CANP 9 16 4 1 15 SGND BCUT CPUB GND CPBJ BLIND SPOT MONITOR BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLU WIRE BRN WIRE BRN/WHT WIRE BSL+ BSR+ CANN CANP COMPUTER DATA LINES SYSTEM EC MIRROR EC+ ENGINE ROOM R/B 1 F/R DOOR FUSE FL DOOR P/W-B FUSE FUSE FOOTWELL) GRN WIRE GRY WIRE GRY/RED WIRE HORIZONTAL HOT AT ALL TIMES HSRL VC HSRR VC LEFT FRONT MULTIPLEX NETWORK DOOR ECU (IN LEFT FRONT DOOR) LEFT OUTER REAR VIEW MIRROR ASSEMBLY LINES SYSTEM COMPUTER DATA LT BLU WIRE LT GRN WIRE MAIN BODY ECU MIRROR ADJUST SWITCH MIRROR AUTO RETRACT SWITCH (W/ RETRACTOR MIRROR) MIRROR HEATER MIRROR L SELECT SWITCH MIRROR R SELECT SWITCH MIRROR R/L SELECT SWITCH MIRROR RETRACT SWITCH (W/ RETRACTOR MIRROR) MIRRORS SYSTEM MLP MM MSWE SIG BDR ECI + ECI - PNK WIRE MPX-B FUSE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY PNK 18 19 3 6 7 8 4 1 ECI + ECI - SIG BDR CANN CANP CPUB GND WIRE PNK WIRE RED WIRE RELAY ENERGIZED LEFT COWL SIDE J/B LH-IG (BEHIND LEFT FUSE END OF DASH) RELAY ENERGIZED RIGHT COWL SIDE J/B (BEHIND RIGHT END OF DASH) RETRACTOR/ NORMAL RH-IG FUSE RIGHT FRONT MULTIPLEX NETWORK DOOR ECU (IN RIGHT FRONT DOOR) RIGHT OUTER REAR VIEW MIRROR ASSEMBLY SEAT MEMORY SWITCH SET- TURN VERTICAL VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

A/C LH J/B HTR COMP ALT ABS 1 FUSE ALT ALT FUSE ANTI-LOCK BRAKES SYSTEM ANTI-THEFT, ELECTRONIC POWER STEERING SYSTEMS ARS FUSE VGRS FUSE ASSEMBLY 1 (RIGHT REAR OF ENGINE COMPT) BATTERY BLK WIRE BLK/BLU WIRE BLU WIRE DCM FUSE DOME FUSE ECU-B FUSE ELECTRONIC POWER STEERING SYSTEM ELECTRONIC SHIFT POWER INTERLOCK STEERING SYSTEM SYSTEM ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) ENGINE ROOM R/B ENGINE ROOM R/B 2 (LEFT SIDE OF ENGINE COMPT) EPB EPS FUSE FUSE FILTER FUSE FUSE GRN WIRE GRY WIRE H-LP CLN FUSE H-LP LO FUSE HEADLIGHTS SYSTEM HORN FUSE HORN SYSTEM INTEGRATION RELAY ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) LH ALT-S ABS 2 ETCS ST J/B-B FUSE FUSE FUSE FUSE FUSE LT BLU WIRE LUG J/B ALT LUG J/B-B MAIN BODY ECU MEMORY SYSTEMS MPX-B D/C CUT FUSE FUSE NAVIGATION SYSTEM NAVIGATION, SOUND SYSTEMS ODS FUSE EPS-B FUSE P/I ALT FUSE P/I-B 2 FUSE PNK PNK PNK PNK WIRE PNK PNK WIRE PNK WIRE POWER WINDOWS, DOOR LOCKS, ANTI-THEFT, MEMORY SYSTEMS PNK WIRE POWER WINDOWS, DOOR LOCKS, ANTI-THEFT, SEATS, MEMORY SYSTEMS MEMORY SYSTEMS PTC 1 PTC 2 FAN 1 FUSE FUSE FUSE FUSE FUSE FUSE R/B-B FUSE RED WIRE RH J/B ALT FUSE RH J/B-B FUSE P/I-B 1 FUSE STARTING/ CHARGING SYSTEM STARTING/CHARGING SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TO CERTIFICATION ECU (DIAGRAM 3 OF 4) TO ENGINE ROOM J/B 2 (DIAGRAM 2 OF 4) TO LUGGAGE ROOM J/B (DIAGRAM 2 OF 4) TO LUGGAGE ROOM J/B 1 (DIAGRAM 2 OF 4) TO RIGHT COWL SIDE J/B (DIAGRAM 2 OF 4) TO RIGHT COWL SIDE J/B (DIAGRAM 3 OF 4) TRUNK, TAILGATE, FUEL DOORS SYSTEM TV FUSE VIO WIRE WHT WIRE WHT/BLK WIRE WIPER/ WASHER SYSTEM WIRING HARNESS CONDENSER YEL WIRE

A/C TI, TE P/W-B FUSE FUSE FUSE MAIN BODY ECU ACTG AIR CONDITIONING MEMORY SYSTEM SYSTEMS AIR CONDITIONING SYSTEM ANTI-LOCK ANTI-LOCK BRAKES BRAKES CONTROL CONTROL BLK WIRE BLU WIRE CRUISE COOLING CONTROL FANS SYSTEM SYSTEM D DOOR UNLOCK RELAY D/L 1 FUSE D/L 2 FUSE ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) F/L DOOR FUSE FL (-) FL S/HTR WIPER FUSE FUSE FROM ENGINE ROOM R/B (DIAGRAM 1 OF 4) FROM RIGHT COWL SIDE J/B (DIAGRAM 3 OF 4) FUEL OPN RELAY FUSE GRN WIRE HEADLIGHTS SYSTEM INSTRUMENT CLUSTER SYSTEM INTEGRATION RELAY J/C LH ECU-IG FUSE LH J/B-B FUSE LH-IG FUSE LT BLU WIRE LT GRN WIRE MAIN BODY ECU MEMORY SYSTEMS MEMORY, POWER WINDOWS, DOOR LOCKS, ANTI-THEFT SYSTEMS NAVIGATION SYSTEM NAVIGATION, SOUND SYSTEMS NV-IR FUSE PASSIVE RESTRAINTS SYSTEM POWER CHARGE RELAY POWER EXTERIOR WINDOWS LIGHTS SYSTEM SYSTEM POWER TOPS SYSTEM POWER WINDOWS, DOOR LOCKS, ANTI-THEFT, MEMORY SYSTEMS RED WIRE RELAY RL HAZ DOOR FUSE FUSE S/ROOF FUSE SEATS SYSTEM SEATS, NAVIGATION, BODY COMPUTER SYSTEMS SHIFT INTERLOCK SYSTEM STARTING/ CHARGING SYSTEM STOP FUSE STRG LOCK FUSE TO LUGGAGE ROOM J/B 1 (DIAGRAM 2 OF 4) WHT WIRE WIPER-IG FUSE WIPER/WASHER SYSTEM WIPER/WASHER, MIRRORS, INTERIOR LIGHTS, NAVIGATION SYSTEMS YEL WIRE

16 6 3 4 5 2 9 15 1 BCUT BDR SIG CPUB BDRJ PWE SGND CPBJ GND 22 16 24 18 9 8 LSWE KL KUL 33 32 PNK WIRE ALTB IG BECU LIN 2 FLCY 32 30 BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CONTROL CIRCUIT DOOR LOCK, UNLOCK SWITCH DRIVER DRIVER SIDE SIDE UP SWITCH DOWN SWITCH ENGINE ROOM R/B 1 F/L DOOR FUSE F/R DOOR FUSE FRONT PASSENGER SIDE POWER WINDOW SWITCH GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES RIGHT COWL SIDE J/B (RIGHT END OF DASH) RR DOOR FUSE HOT W/ KEY LOCK KEY UNLOCK LED LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT DOOR LOCK ASSEMBLY (REAR OF LEFT FRONT DOOR) LEFT FRONT MULTIPLEX NETWORK DOOR ECU (IN LEFT FRONT DOOR) LEFT REAR SIDE POWER WINDOW SWITCH LEFT REAR, RIGHT REAR SIDE POWER WINDOW SWITCH LH J/B-B FUSE LH-IG FUSE LT GRN WIRE MAIN BODY ECU MPX-B (LEFT SIDE FUSE OF ENGINE COMPT) MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY P/W-B FUSE PNK WIRE POWER WINDOW SWITCH DRIVER SIDE R/L DOOR FUSE RED WIRE RELAY ENERGIZED RH-IG FUSE RIGHT REAR SIDE POWER WINDOW RLY 1 RELAY ENERGIZED SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE WINDOW DRIVER LOCK SIDE SWITCH AUTO SWITCH WINDOW LOCK SWITCH YEL WIRE