Lexus GS IV (2011-2015) headlight dimmer switch assembly 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

BLB BLGD BLIND SPOT MONITOR BLK WIRE BLK/RED WIRE BLU WIRE BRB BRGD BSL+ BSMI CAN I/F COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ENGINE COMPT) FUSE GAUGE FUSE GRN WIRE GRY WIRE GRY/RED WIRE HEADLIGHT DIMMER SWITCH ASSEMBLY INTEGRATION CONTROL, PANEL ASSEMBLY LED DRIVER LEFT "C" PILLAR) LEFT BLIND SPOT MONITOR SENSOR (BEHIND LEFT END OF REAR BUMPER) LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT MULTIPLEX NETWORK DOOR ECU LEFT OUTER REAR VIEW MIRROR ASSEMBLY LGND LT GRN WIRE LUGGAGE ROOM J/B 1 (LEFT SIDE OF OMIL OMIR PNK BSSW WIRE PNK WIRE RED WIRE RELAY ENERGIZED ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) RIGHT BLIND SPOT MONITOR SENSOR (BEHIND RIGHT END OF REAR BUMPER) RLY 1 RELAY ENERGIZED RLY 1 RELAY ENERGIZED LH ECU-IG FUSE TELLTALES VIO WIRE WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY

AUTO BLK WIRE BLK/RED WIRE BLU WIRE GRN WIRE GRY WIRE HEAD HEADLIGHT DIMMER SWITCH ASSEMBLY LEFT FRONT MULTIPLEX NETWORK DOOR ECU (IN LEFT FRONT DOOR) LEFT HEADLIGHT ASSEMBLY LEFT OUTER REARVIEW MIRROR ASSEMBLY LIGHT CONTROL SWITCH LT GRN WIRE NETWORK DOOR ECU (IN RIGHT FRONT DOOR) OFF PNK WIRE RED WIRE RIGHT FRONT MULTIPLEX RIGHT HEADLIGHT ASSEMBLY RIGHT OUTER REARVIEW MIRROR ASSEMBLY TAIL TRNI TURN 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/ 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

13 25 22 14 11 FFGO DRL DIM TRLY 31 32 ALTB IG 4 2 FRCY FLCY 6 13 14 27 5 8 30 29 28 21 20 22 RCTY CANL CANH FFOG HU HF TAIL HEAD AIR CONDITIONING SYSTEM AUTO AUTOMATIC LIGHT CONTROL SENSOR (UPPER RIGHT SIDE OF DASH) BLK WIRE BLU WIRE CLTB CLTE CLTS CLTS CLTB CLTE DIMMER SWITCH ENGINE ROOM R/B 1 (LEFT SIDE OF ENGINE COMPT) FOG LIGHT SWITCH GRN WIRE GRY WIRE H-LP LO FUSE HEAD HEADLIGHT DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES LCTY LEFT COWL SIDE J/B LEFT FRONT FOG LIGHT ASSEMBLY LH J/B-B FUSE LH-IG FUSE LIGHT CONTROL SWITCH LLEW RLEW LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) MPX-B FUSE OFF P/I-B 1 FUSE PNK WIRE RED WIRE RELAY ENERGIZED RIGHT FRONT FOG LIGHT ASSEMBLY SOLAR SENSOR TAIL TSL TSR 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

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

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

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