Lexus GS IV (2011-2015) computer data lines system Wiring diagrams

13 14 CANL CANH 28 29 30 CANH CANL ES CAN IF ALT ALT-S FUSE FUSE BATTERY BLK WIRE BLU WIRE CHG- I/F COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CPU IC ECM (ENGINE CONTROL MODULE) (LEFT SIDE OF ENGINE COMPT) ENERGIZED LH ECU IG FUSE ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) ENGINE ROOM R/B 2 (LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GENERATOR ASSEMBLY GRN WIRE HOT W/ LEFT COWL SIDE J/B (BEHIND LEFT END OF DASH) PNK ALT WIRE PNK WIRE STARTER ASSEMBLY VIO WIRE WHT WIRE WHT/BLK WIRE

1 2 3 4 5 6 7 8 M- M+ 10 6 5 VT TSEN AUTO AUTO IND BLK WIRE BLU WIRE CAN I/F CANH CANL 28 29 COMPUTER DATA LINES SYSTEM COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ECU-B 3 FUSE ELECTRIC PARKING BRAKE SWITCH ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) EPB GAUGE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES FUSIBLE LINK EPB FUSE BLOCK (LEFT REAR OF LUGGAGE COMPT) HOT AT ALL TIMES LUGGAGE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) HOT W/ IG AUTO PNK WIRE ILL ILL IND LED DRIVER LEFT COWL SIDE J/B (LEFT END OF DASH) LH ECU-IG FUSE LOCK LPA TX +B MPX-B FUSE NCA WIRE PARKING BRAKE ACTUATOR (LEFT REAR OF LUGGAGE COMPT) PARKING BRAKE ECU (LEFT SIDE OF LUGGAGE COMPT) PARKING LIGHT SWITCH ASSEMBLY PNK WIRE RED WIRE RELEASE RR ECU-IG FUSE TELLTALES TGND TGND 1 2 VIO WIRE VT TSEN 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

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

+B PGND 1 2 3 4 5 6 7 8 9 10 MOR- MOR+ MOL+ MOL- 1 2 3 4 5 6 7 8 CANH CANL 29 30 COMPUTER DATA LINES SYSTEM 5 39 PBSW COMPUTER DATA LINES SYSTEM 17 18 40 BLK WIRE BLU WIRE CAN I/F CANH CANL 28 29 30 COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DRIVING SUPPORT ECU (LEFT END OF DASH) ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE HOT AT ALL TIMES LUGGAGE PSB FUSE ROOM J/B 1 (LEFT SIDE OF LUGGAGE COMPT) HOT IN ON OR START RIGHT COWL COWL SIDE J/B RH ECU IG FUSE (RIGHT END OF DASH) JUNCTION CONNECTOR LEFT FRONT SEAT OUTER BELT ASSEMBLY (BASE OF LEFT "B" PILLAR) LT GRN WIRE MILLIMETER WAVE RADAR SENSOR (CENTER OF FRONT FASCIA) PRE-COLLISION SYSTEM CANCEL SWITCH ASSEMBLY RED WIRE RIGHT FRONT SEAT OUTER BELT ASSEMBLY (BASE OF RIGHT "B" PILLAR) SEAT BELT CONTROL ECU (LEFT SIDE OF LUGGAGE COMPT) SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CA+ CGND SHIELD COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM EAU GRN WIRE GRY WIRE GVIF HOT AT ALL TIMES HOT AT ALL TIMES RIGHT COWL ILL ILL INSTRUMENT CLUSTER SYSTEM LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT STEERING PAD SWITCH LH-IG FUSE LT BLU WIRE LT GRN WIRE MIN MIN+ SGND MACC SHIELD MODE MULTI MEDIA FUSE MULTI-MEDIA MODULE RECEIVER ASSEMBLY NCA WIRE NIGHT VIEW ECU (RIGHT SIDE OF LUGGAGE COMPT) OFF HOOK ON HOOK PNK WIRE RED WIRE RH ACC RELAY RH ECU-IG FUSE RIGHT STEERING PAD SWITCH ROOF ANTENNA ASSEMBLY SEEK SEUC SHIELD SIDE J/B (RIGHT END OF DASH) FUSE SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY SUPPLEMENTAL RESTRAINTS SYSTEM SWG AIR ARON V+ V- VMTF VOICE VOICE RETURN VOLUME- W/ LEXUS ENFORM W/O LEXUS ENFORM WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CB+ CGND COMPUTER DATA LINES SYSTEM CURT CV+ ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE GVIF HOT AT ALL TIMES ILL LIGHTS SYSTEM INTERIOR LINES SYSTEM COMPUTER DATA LT BLU WIRE LT GRN WIRE MCI- MCO- MCVD MI+ MO- MUTE PNK WIRE REAR TELEVISION CAMERA (CENTER REAR OF LUGGAGE COMPT LID) RED WIRE REMOTE OPERATION SWITCH SGND SHIELD TV FUSE USB USBG USBV VMTI VOR- VOT+ W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLK WIRE WUI WUO 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

13 14 29 20 CANL CANH NSW STA AGND CANL CANH BATTERY BLK WIRE BLU WIRE CERTIFICATION ECU (RIGHT END OF DASH) COMPUTER DATA LINES SYSTEM ECM (ENGINE CONTROL MODULE) (LEFT SIDE OF ENGINE COMPT) ENGINE GND SWITCH ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) GRN WIRE HOT AT ALL TIMES JUNCTION CONNECTOR LT GRN WIRE PARK/NEUTRAL POSITION SWITCH (TRANSMISSION) RED WIRE RIGHT END OF DASH) ST FUSE ST RELAY STA STAR STARTER ASSEMBLY VIO WIRE WHT WIRE YEL WIRE

BLK WIRE BLU WIRE CERTIFICATION ECU (RIGHT END OF DASH) COMPUTER DATA LINES SYSTEM CONTROL ECU (RIGHT END OF DASH) FUSE GRN WIRE HOT AT ALL TIMES ID CODE BOX (CENTER OF DASH) IGE J/C LEFT COWL SIDE J/B (LEFT END OF DASH) PNK LIN 1 WIRE PNK LIN WIRE PNK PNK PNK PNK 14 13 15 12 WIRE PNK WIRE POWER MANAGEMENT RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) SL/R SLP STEERING LOCK ACTUATOR (ON STEERING COLUMN) STRG LOCK FUSE WHT WIRE WHT/BLK WIRE