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

BACK BLK WIRE BLU WIRE BRN WIRE CANN CANP CLS COMPUTER DATA LINES SYSTEM DOWN ENGINE COMPT) ENGINE ROOM R/B 1 (LEFT SIDE OF FL (-) FUSE 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 CUSHION MOTOR LEFT POWER SEAT LIFT MOTOR LH-IG FUSE LT BLU WIRE LT GRN WIRE MAIN BODY ECU O/P PNK WIRE RED WIRE SPR VCC VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK/ WHT WIRE CLEARANCE WARNING ECU DATA LINK CONNECTOR 3 DRIVER MONITOR ECU ELECTRIC PARKING BRAKE SWITCH ASSEMBLY FROM HEADLIGHT DIMMER SWITCH ASSEMBLY INTEGRATION CONTROL, PANEL ASSEMBLY J/C LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT MULTIPLEX NETWORK DOOR ECU 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 PRE-COLLISION SYSTEM CANCEL SWITCH REAR WINDOW DEFOGGER (BACK WINDOW GLASS) RIGHT FRONT MULTIPLEX NETWORK DOOR ECU RIGHT VISOR ASSEMBLY SHIFT LOCK CONTROL ECU SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY STEERING SENSOR TILT STEERING GEAR W/ MOTOR TIRE PRESSURE WARNING RESET SWITCH TRIP SWITCH W/ ADAPTIVE FRONT LIGHTING SYSTEM WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY

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

ALT ANTI-LOCK BRAKES SYSTEM BATTERY BLK WIRE BLK/WHT WIRE BLU WIRE D/C CUT FUSE DC/DC FUSE DOME FUSE DOOR LOCKS, ANTI-THEFT SYSTEMS ECU-B FUSE ELECTRONIC POWER STEERING SYSTEM ENGINE CONTROLS SYSTEM ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) EPB FUSE EPS FUSE EPS-B H-LP LO FUSE FUSE ETCS FUSE FROM IGCT 1 FUSE (DIAGRAM 1 OF 7) ABS MAIN 2 ABS MAIN 1 FUSE FUSE FUSE FUSIBLE LINK BLOCK (LEFT REAR OF LUGGAGE ENG R/B-B COMPT) FUSE GRN WIRE GRY WIRE HEADLIGHTS ELECTRONIC SYSTEM POWER STEERING SYSTEM HORN FUSE HORNS SYSTEM IGCT 1 FUSE INTEGRATION RELAY INTERIOR LIGHTS SYSTEM (LEFT END OF DASH) LEFT COWL SIDE J/B INV W/P FUSE LT BLU WIRE LT GRN WIRE LUG J/B-B MAIN BODY ECU MEMORY POWER WINDOWS, SYSTEMS DOOR LOCKS, ANTI-THEFT, MEMORY SYSTEMS MEMORY SYSTEMS MPX-B FUSE OIL PMP FUSE OIL PUMP RELAY ABS 2 FUSE P/I DC/DC P/I-B 1 FUSE PNK WIRE POWER WINDOWS, DOOR LOCKS, ANTI-THEFT, MEMORY SYSTEMS RED WIRE RH J/B DC/DC FUSE SHIFT INTERLOCK SYSTEM TO ABS 2 MAIN FUSE TO LH J/B-B FUSE (DIAGRAM 2 OF 7) TO LUG J/B DC/DC FUSE (DIAGRAM 2 OF 7) TO LUGGAGE ROOM J/B 1 (DIAGRAM 6 OF 7) TO RIGHT COWL SIDE J/B (DIAGRAM 3 OF 7) TRUNK, ANTI-LOCK TAILGATE, FUEL BRAKES DOORS SYSTEM SYSTEM TV ODS FUSE FUSE VIO WIRE WARNING, SUPPLEMENTAL RESTRAINTS SYSTEMS SOUNDS, NAVIGATION SYSTEMS YEL WIRE

AIR CONDITIONING SYSTEM BODY COMPUTER, WIPER/WASHER, AIR CONDITIONING SYSTEMS COMPUTER DATA LINES SYSTEMS DOOR LOCKS, WARNING, ANTI-THEFT, MEMORY SYSTEMS FROM FROM WIPER-IG FUSE (DIAGRAM 4 OF 7) HEADLIGHTS SYSTEM INSTRUMENT CLUSTER SYSTEM LH-IG FUSE LT GRN WIRE MAIN BODY ECU MEMORY SYSTEMS MEMORY, POWER WINDOWS, DOOR LOCKS, ANTI-THEFT SYSTEMS NAVIGATION SYSTEM NAVIGATION, SOUND SYSTEMS PASSIVE RESTRAINTS SYSTEM POWER TOPS, MIRRORS, INTERIOR LIGHTS, WIPER/WASHER SYSTEMS POWER WINDOWS, DOOR LOCKS, ANTI-THEFT, MEMORY SYSTEMS RED WIRE RELAY (DIAGRAM 3 OF 7) RH-IG FUSE SEATS SYSTEM SHIFT INTERLOCK SYSTEM WARNING SYSTEMS WIPER/ WASHER SYSTEM

A/C FUSE AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BLK WIRE BLU WIRE CAPACITOR (HV) D/L 1 FUSE ENGINE CONTROLS CRUISE CONTROL, EXTERIOR LIGHTS SYSTEMS ENGINE CONTROLS SYSTEM ENGINE CONTROLS, SHIFT INTERLOCK, DOOR LOCKS, ANTI-THEFT SYSTEMS F/L DOOR FUSE FL (-) FROM FROM ENGINE ROOM J/B 1 (DIAGRAM 2 OF 7) FROM ENGINE ROOM R/B 1 (DIAGRAM 2 OF 7) FUSE GRN WIRE HAZ FUSE INSTRUMENT CLUSTER, EXTERIOR LIGHTS SYSTEMS LH J/B-B FUSE MAIN BODY ECU MEMORY SYSTEMS MEMORY, DOOR LOCKS, ANTI-THEFT, POWER WINDOWS SYSTEMS MEMORY, POWER WINDOWS, DOOR LOCKS, ANTI-THEFT SYSTEMS P/W-B FUSE POWER CHANGE RELAY POWER CHANGE RELAY D/L 2 FUSE POWER TOPS SYSTEM POWER WINDOWS SYSTEM R/L DOOR FUSE RED WIRE RELAY (DIAGRAM 4 OF 7) S/ROOF FUSE SHIFT INTERLOCK SYSTEMS STOP FUSE STRG LOCK TI, TE FUSE WHT WIRE YEL WIRE

ALT BLK WIRE BLU WIRE COMPUTER DATA LINES SYSTEM ENERGIZED LEFT COWL SIDE J/B LH IG (LEFT FUSE END OF DASH) ENGINE ROOM J/B 1 ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) FRONT CONTROL SWITCH GNDA (-) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGCT RELAY ENERGIZED IGCT 5 FUSE INTEGRATION RELAY LH J/B-B FUSE MAIN BODY ECU MPX-B FUSE P/I DC/DC FUSE PNK WIRE POWER MANAGEMENT CONTROL ECU (RIGHT END OF DASH) REAR CONTROL SWITCH REAR ECU SUNSHADE SWITCH REAR SUNSHADE RELAY (REAR WINDOW SHADE ASSEMBLY) (UNDER REAR PARCEL SHELF) REAR SUNSHADE SWITCH ASSEMBLY RED WIRE REV RSSH RSW SHAD SHIFT LEVER POSITION SENSOR (TRANSMISSION) 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

1 2 3 4 5 6 7 8 9 10 11 12 IG STP SP+ 8 9 CANL CANH BLK WIRE BLU WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM ENGINE OIL PRESSURE SWITCH ASSEMBLY (LOWER LEFT FRONT OF ENGINE) ENGINE ROOM GAUGE FUSE R/B 1 (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT COWL SIDEL J/B (LEFT SIDE OF DASH) LH J/B-B FUSE LH-IG FUSE LT BLU WIRE LT GRN WIRE MAIN BODY ECU MPX-B FUSE PNK WIRE RED WIRE RELAY ENERGIZED RH ECU-IG FUSE RIGHT COWL SIDE J/B (RIGHT SIDE OF DASH) SFTP SFTP OPSW SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) SPD GND SP- VEHICLE APPROACHING SPEAKER ASSEMBLY VEHICLE APPROACHING SPEAKER CONTROLLER (RIGHT SIDE OF LUGGAGE COMPARTMENT) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE