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

1 2 3 4 5 6 7 8 9 10 SMBL SMBR 31 32 ALTB IG 4 2 FRCY FLCY 6 29 RCTY HEAD BLK WIRE BLU WIRE CAN I/F COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR 3 (UNDER LEFT SIDE OF DASH) DISPLAY DRIVER ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE GRY WIRE HEADLIGHT DIMMER SWITCH ASSEMBLY HEADLIGHT LEVELING, SWIVEL MOTOR HEADLIGHT SWIVEL ECU ASSEMBLY (BEHIND LEFT KICK PANEL) HEADLIGHT SWIVEL MAIN SWITCH HOT AT ALL TIMES INIT INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM LCTY LED DRIVER LEFT COWL SIDE J/B LEFT HEADLIGHT ASSEMBLY LEFT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY (LEFT REAR WHEELWELL) LH E LH ECU-IG FUSE LH J/B-B FUSE LH-IG FUSE LHM+ LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE LVL MAIN BODY ECU (LEFT END OF DASH) MPX-B FUSE MSW OFF AUTO TAIL HEAD PNK RH+ CANH CANL IGS IG COMPUTER DATA LINES SYSTEM WIRE PNK WIRE RED WIRE RELAY ENERGIZED RH E RHM + RIGHT HEADLIGHT ASSEMBLY SBR SHRL PNK WIRE SGR SMBL SMBR SMGL SMGR SML SML LH+ SMR TELLTALES VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

12 4 3 2 22 3 TCYL LCYL LCTY 14 13 CANH CANL COMPUTER DATA LINES SYSTEM 32 31 30 IG ALTB BECU 4 2 FRCY FLCY AGND BLK WIRE BLU WIRE COMPUTER DATA LINES SYSTEM DOME CUT RELAY DOOR CONTROL SWITCH FSPT GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT DOOR COURTESY LIGHT LEFT REAR DOOR COURTESY LIGHT LEFT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (LEFT "C" PILLAR) LH J/B-B FUSE LH-IG FUSE LT BLU WIRE LT GRN WIRE LUGGAGE COMPARTMENT LIGHT ASSEMBLY 1 MAIN BODY ECU (LEFT END OF DASH) NOISE FILTER (CENTER STOP LIGHT, LUGGAGE COMPARTMENT LIGHT) (LEFT "C" PILLAR) ORG/ WIRE PNK LGCY WIRE PNK PNK PNK PNK WIRE PNK WIRE POWER SWITCH RCTY RCYL RED WIRE RELAY ENERGIZED RIGHT REAR DOOR COURTESY LIGHT RIGHT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (RIGHT "C" PILLAR) SWIL WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE

10 11 12 LED+ LED- 11 10 12 LED- LED+ 13 3 4 6 16 1 CYL SIG CPUB BDR BCUT GND 33 32 4 31 1 PNK PNK WIRE 13 3 6 7 8 4 1 CYL SIG BDR CANN CANP CPUB GND 7 8 COMPUTER CANN CANP DATA LINES SYSTEM BLK WIRE BLK/RED WIRE BLU WIRE CAN I/F COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DASH) DRIVER LED ENGINE ROOM F/L DOOR FUSE F/R DOOR FUSE FOOTWELL) GAUGE R/B 1 FUSE (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT AMBIENT LIGHT (LEFT INTERIOR ILLUMINATION LIGHT ASSEMBLY 1) LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (LEFT "B" PILLAR) LEFT FRONT DOOR INSIDE HANDLE ILLUMINATION LIGHT ASSEMBLY LEFT FRONT MULTIPLEX NETWORK DOOR ECU (IN LEFT FRONT DOOR) LEFT OUTER REAR VIEW MIRROR ASSEMBLY LT BLU WIRE LT GRN WIRE MLP OF DASH) P/W-B FUSE PNK PNK WIRE PNK WIRE RED WIRE RELAY ENERGIZED RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END RH-IG FUSE RIGHT FRONT AMBIENT LIGHT (RIGHT INTERIOR ILLUMINATION LIGHT ASSEMBLY 1) RIGHT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (RIGHT "B" PILLAR) RIGHT FRONT DOOR INSIDE HANDLE ILLUMINATION LIGHT ASSEMBLY RIGHT FRONT MULTIPLEX NETWORK DOOR ECU (IN RIGHT FRONT DOOR) RIGHT OUTER REAR VIEW TELLTALES VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE CAN I/F COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISPLAY DRIVER DRLL ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM J/B 1 (LEFT SIDE OF ENGINE COMPT) ALT ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) FFG DRL HLHS TAIL FFGL FFGR FUSE GAUGE FUSE GNDA (-) GNDB DRLR TLP HLHR GRN WIRE GRY WIRE H-LP LO RELAY HLHL HOT AT ALL TIMES INTEGRATION RELAY LED DRIVER LEFT HEADLIGHT ASSEMBLY LO HI LH-LO H-LP FUSE LT GRN WIRE P/I DC/DC RED WIRE RELAY ENERGIZED RH-LO H-LP FUSE RIGHT HEADLIGHT ASSEMBLY LO HI SPEAKER TELLTALES VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

31 32 ALTB IG 4 2 FRCY FLCY 6 29 RCTY HEAD BLK WIRE BLU WIRE CAN I/F COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR 3 DISPLAY DRIVER ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE HEADLIGHT DIMMER SWITCH ASSEMBLY HEADLIGHT LEVELING MOTOR HEADLIGHT SWIVEL ECU ASSEMBLY (BEHIND LEFT KICK PANEL) HOT AT ALL TIMES INIT INTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM LCTY LED DRIVER LEFT COWL SIDE J/B LH - LH E LH ECU-IG FUSE LH J/B-B FUSE LH-IG FUSE LHM+ LHT RHT LIGHT CONTROL SWITCH LT GRN WIRE LVL MAIN BODY ECU (LEFT END OF DASH) MPX-B FUSE OFF AUTO TAIL HEAD PNK RH+ CANH CANL IGS IG COMPUTER DATA LINES SYSTEM WIRE PNK WIRE RED WIRE RELAY ENERGIZED RH E RHM + RIGHT HEADLIGHT ASSEMBLY SBR SHRL PNK WIRE SGR SMGL SMGR TELLTALES VIO WIRE WHT WIRE WHT/BLK WIRE

4 24 25 ACCD BLK WIRE BLU WIRE CANL CANH 29 28 COMPUTER DATA LINES SYSTEM COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISP DOWN FUSE GRN WIRE GRY WIRE HEADUP DISPLAY HEADUP DISPLAY SWITCH ASSEMBLY HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B 1 MPX-B FUSE (LEFT SIDE OF ENGINE COMPT) HUD ILD CH ILLUMINATION DOWN ILLUMINATION UP ILU ILL+ LEFT COWL SIDE J/B LH-IG FUSE (LEFT END OF DASH) LT GRN WIRE MULTI-MEDIA MODULE RECEIVER ASSEMBLY PNK WIRE POWER MANAGEMENT CONTROL ECU (RIGHT END OF DASH) RED WIRE RELAY RIGHT COWL SIDE J/B (RIGHT END OF DASH) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+S SI IG+ 1 2 GND LBL 30 29 COMPUTER DATA LINES SYSTEM 45 23 LBL BLK WIRE BLU WIRE BRN WIRE CAN I/F COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISPLAY DRIVER DOWN ENGINE CONTROLS SYSTEM ER EL HZSW EXTERIOR LIGHTS SYSTEM (BASE OF LEFT KICK PANEL) EXTERIOR LIGHTS SYSTEM DISP FLASHER CIRCUIT FR FE CANH CANL ES EPB FUEL SENDER GAUGE ASSEMBLY (FUEL TANK) FUEL SENDER GAUGE ASSEMBLY 2 FUSE GRN WIRE GRY WIRE HAZ FUSE HAZM HEADUP DISPLAY CIRCUIT HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) MPX-B FUSE ILL INTERIOR LIGHTS SYSTEM ILL- EP IND INTERIOR LIGHTS INTERIOR LIGHTS SYSTEM ILL + LED TELLTALE DRIVER LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT TURN LT BLU WIRE LT GRN WIRE MALFUNCTION INDICATOR LAMP MSSL RSET ODO/TRIP SWITCH A/B PNK 1 2 3 WIRE PNK PNK WIRE PNK WIRE RED WIRE RELAY RIGHT RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT STEERING PAD SWITCH STEERING PAD SWITCH ASSEMBLY SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) SPEAKER SPIRAL CABLE (IN STEERING COLUMN) SYSTEM TRIP SWITCH TURN TX+ CS UP A/B VIO WIRE W/ POWER TRUNK OPENER, CLOSER WHT WIRE WHT/BLK WIRE WIPER/ WASHER SYSTEM YEL WIRE

1 24 25 ACCD CANH CANL 12 7 CSWE 2 1 GND LOIL BLK WIRE CLS PAWL COMPUTER DATA LINES (UNDER SYSTEM CENTER CONSOLE) COMPUTER DATA LINES SYSTEM DCM (TELEMATICS TRANSCEIVER) (RIGHT END OF DASH) END OF DASH) ENGINE OIL LEVEL SENSOR (RIGHT SIDE OF ENGINE OIL PAN) ENGINE OIL PRESSURE SWITCH (LOWER LEFT FRONT OF ENGINE) ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) FLCY LCTY FRCY FSW HALF GAUGE FUSE GND ECUB CANP CANN PAWL HAF SWG PNK WIRE GRN WIRE GRY WIRE IG CANL CANH LGCY LEFT COWL SIDE J/B (LEFT END MAIN BODY ECU LEFT FRONT DOOR COURTESY LIGHT SWITCH LEFT REAR DOOR COURTESY LH-IG FUSE LIGHT SWITCH (LEFT "C" PILLAR) LIGHT SWITCH (RIGHT "C" PILLAR) LT BLU WIRE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY (W/ POWER TRUNK OPENER, CLOSER) LUGGAGE LID CLOSER MOTOR ASSEMBLY MULTI-MEDIA MODULE RECEIVER ASSEMBLY OF DASH) RCTY PNK 1 2 3 WIRE PNK WIRE RED WIRE RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT FRONT DOOR COURTESY LIGHT SWITCH (RIGHT "B" PILLAR) RIGHT REAR DOOR COURTESY SPDI POWER MANAGEMENT CONTROL ECU (RIGHT END OF DASH) SPDP STEREO COMPONENT AMPLIFIER (RIGHT REAR CORNER OF LUGGAGE COMPT) VEHICLE APPROACHING SPEAKER CONTROLLER (RIGHT SIDE OF LUGGAGE COMPT) VIO WIRE W/ NIGHT VIEW SYSTEM W/O NIGHT VIEW SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE

14 13 CANH CANL 21 20 22 CLTS CLTB CLTE 23 14 ACAN TRLY 30 28 29 TAIL 32 31 30 IG ALTB BECU 5 6 3 CLTS CLTB CLTE AGND AUTO TAIL OFF HEAD AUTOMATIC LIGHT CONTROL SENSOR (UPPER RIGHT SIDE OF DASH) BLK WIRE BLK/ WHT WIRE BLU WIRE COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) GLOVE BOX LIGHT (INTERIOR ILLUMINATION LIGHT SUB ASSEMBLY) GRN WIRE GRY WIRE HEAD HEADLIGHT DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT W/ INSTRUMENT PANEL REGISTER ASSEMBLY 2 J/C LEFT COWL SIDE J/B (LEFT END OF DASH) LH ECU-IG FUSE LH J/B-B FUSE LH-IG FUSE LIGHT CONTROL SWITCH LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) MPX-B FUSE P/I-B 1 FUSE PANL PNK WIRE POWER SWITCH RED WIRE RELAY ENERGIZED REMOTE OPERATION SWITCH REAR SUNSHADE SWITCH ASSEMBLY SHIFT POSITION INDICATOR SWIL VIO WIRE WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE

13 14 IRLY IRFL 23 30 29 HZRI BLK WIRE BLU WIRE CC+ CV+ CB+ CCD+ NTSC CLTS CCD- SG CGND COMPUTER DATA LINES SYSTEM GRN WIRE GRY WIRE GVIF HOLD IRFL NVSW IRLY LEFT HEADLIGHT ASSEMBLY LT BLU WIRE LT GRN WIRE NIGHT VIEW NIGHT VIEW CAMERA NIGHT VIEW ECU (RIGHT SIDE OF LUGGAGE COMPT) NVM PNK 14 13 IRFR IRLY WIRE PNK 47 22 WIRE PNK IRFR WIRE PNK WIRE RED WIRE RELAY ENERGIZED RH ECU-IG FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT HEADLIGHT ASSEMBLY SATELLITE SWITCH SET SHIELD SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) SOUND SYSTEMS WHT WIRE WHT/BLK WIRE