Lexus RX III facelift (2012-2015) (center of dash) Wiring diagrams

+ECU 1 2 INTERIOR LIGHTS SYSTEM RCYL LSWR DOOR LOCKS SYSTEM 12 13 14 15 PKB FFGO TRLY HRLY HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM 24 25 26 27 28 29 30 31 32 GSW 5 6 PBDS TRUNK, TAILGATE, FUEL DOORS SYSTEM 8 7 CANP CANN 8 9 PNK CANN CANP WIRE ACTG ACT- ACT+ ACTD DOOR LOCKS SYSTEM ANTI-THEFT SYSTEM ANTI-THEFT SYSTEM DOOR LOCKS SYSTEM HEADLIGHTS SYSTEM BECU ALTB IG BLK WIRE BLU WIRE BRN WIRE D/L ALT B FUSE D/L SOURCE RELAY DMDR DMON INTERIOR LIGHTS SYSTEM DOOR LOCKS SYSTEM ECU, SWITCH ASSEMBLY (LEFT SIDE OF DRIVER'S SEAT CUSHION) ECU- IG 1 FUSE ECU-B 1 FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FRONT DOOR) FUSE GRN WIRE GRY WIRE HCTY BZR DIM IND HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM RLEW CANP CANN HORN HORNS SYSTEM HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START ILE FLCY FRCL FRCY LSWL 2 3 4 5 6 7 8 9 10 INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEFT FRONT POSITION CONTROL LEFT FRONT POWER WINDOW LEFT OUTER MIRROR CONTROL ECU ASSEMBLY (IN LEFT LEFT REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY (IN LEFT REAR DOOR) LIN LIN 1 LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY NAVIGATION SYSTEM EXTERIOR LIGHTS SYSTEM SFTP HZSW ORG/ WIRE PNK WIRE RED WIRE REGULATOR RIGHT FRONT POWER WINDOW RIGHT REAR POWER WINDOW REGULATOR SLIDING ROOF CONTROL ECU (CENTER FRONT OF ROOF) SUPPLEMENTAL RESTRAINTS SYSTEM VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

11 35 34 TC 13 14 CANL CANH 13 22 CANH CANL 16 15 14 13 12 11 10 9 8 7 6 BAT 4 3 2 1 CG 42 12 25 26 13 TC CANH CANL CAN- CAN+ 9 10 CANP CANN A/C AMPLIFIER (RIGHT SIDE (RIGHT SIDE OF DASH) OF DASH) AIR BAG SENSOR ASSEMBLY (BELOW CENTER CONSOLE) BLK WIRE BLU WIRE BRN WIRE CANL TC TS CANN CANP CERTIFICATION ECU ASSEMBLY (RIGHT SIDE OF DASH) DCM (TELEMATICS TRANSCEIVER) (UNDER CENTER CONSOLE) DIA ECM (RIGHT FRONT OF ENGINE COMPT) GRN WIRE GRY WIRE HEADLIGHT SWIVEL ECU ASSEMBLY (LEFT END OF DASH) HOT AT ALL TIMES INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) INIT LEFT FRONT POSITION CONTROL ECU, SWITCH ASSEMBLY LEFT OUTER MIRROR CONTROL ECU ASSEMBLY (IN LEFT FRONT DOOR) LIN LIN 1 LIN 2 LINK CONNECTOR) (UNDER LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE LVL SIL CANH MAIN BODY ECU INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) OBD FUSE OCCUPANT DETECTION ECU (UNDER FRONT PASSENGER'S SEAT) ORG/ WIRE PNK WIRE POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) RED WIRE SIL SKID CONTROL ECU (RIGHT SIDE OF DASH) TOP OF ENGINE) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+ECU 26 25 DMON DMDR 3 1 FRCL ILE 31 32 29 ALTB IG 4 11 FRCY 4 6 LCYL DOMR BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CSPT CTY D/L ALT B FUSE DOME FUSE DOME RELAY ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FLCL FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES ECU- B 1 FUSE HOT W/ ACC 1 RELAY ENERGIZED ILLB ILLB RGND LCTY LEFT FRONT COURTESY LIGHT ASSEMBLY LEFT FRONT DOOR COURTESY LIGHT SWITCH (AT LEFT "B" PILLAR) LEFT REAR DOOR COURTESY LIGHT SWITCH (AT LEFT REAR "C" PILLAR) LT BLU WIRE LT GRN WIRE MAIN BODY ECU INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) ORG/ WIRE OVERHEAD MODULE PNK 1 2 WIRE PNK WIRE R/B 1 RCTY RCYL RED WIRE RELAY ENERGIZED RIGHT FRONT COURTESY LIGHT ASSEMBLY RIGHT FRONT DOOR COURTESY LIGHT SWITCH (AT RIGHT "B" PILLAR) RIGHT REAR COURTESY LIGHT ASSEMBLY RIGHT REAR DOOR COURTESY LIGHT SWITCH (AT RIGHT REAR "C" PILLAR) RRMP LILL RGND SHFT DOOR CILL SPORT LIGHT ASSEMBLY VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 TTRS TTLS TTLA 1 2 3 5 6 TSL TSR CLTE CLTS CLTB 17 9 10 3 HZSW CANP CANN 6 28 29 30 20 21 22 13 14 3 RCTY ALT ROOM J/B FUSE ASSEMBLY (LEFT FRONT FENDER APRON) AUTOMATIC LIGHT CONTROL SENSOR (TOP CENTER OF DASH) BLK WIRE BLK/ WHT WIRE BLU WIRE BRN WIRE CENTER STOP LIGHT ASSEMBLY COMPUTER DATA LINES SYSTEM CTRS D/L ALTB FUSE ECU-ACC FUSE ECU-IGI 1 FUSE ENGINE GRN WIRE GRY WIRE HEAD TAIL CLTB CLTS CLTE CANL CANH HAZ HMSL HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IG ALTB TRLY INSTRUMENT PANEL J/B ASSEMBLY (LEFT SIDE OF DASH) LCTY LEFT LICENSE PLATE LIGHT ASSEMBLY LEFT OUTER REAR VIEW MIRROR ASSEMBLY LEFT QUARTERPANEL) LEFT REAR COMBINATION LIGHT ASSEMBLY LEFT REAR LIGHT ASSEMBLY LEFT REAR RIGHT REAR SIDE MARKER SIDE MARKER LIGHT LIGHT ASSEMBLY ASSEMBLY LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) NCA WIRE NOISE FILTER (CENTER STOP LIGHT ASSEMBLY) (CENTER REAR OF ROOF) ORG/ WIRE RED WIRE RIGHT LICENSE PLATE LIGHT ASSEMBLY RIGHT REAR COMBINATION LIGHT ASSEMBLY RIGHT REAR LIGHT ASSEMBLY STOP STP+ TAIL TAIL FUSE TAIL RELAY TOWING CONVERTER (RIGHT SIDE OF CARGO AREA) TRAILER HITCH TRN+ TRNI TRNR TURN VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 OUT 1 2 3 4 5 6 7 8 IG LR LL PNK WIRE 1 23 24 2 IG+ CANH CANL PNK WIRE 31 2 22 14 25 STPO AUTO BLK WIRE BLU WIRE BRN WIRE CANADA CANL CANH COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DRL OFF ECM (LEFT SIDE OF ENGINE COMPT) EL ER ENGINE ROOM GAUGE 2 FUSE GRN WIRE GRY WIRE HAZ FUSE HAZARD WARNING SIGNAL SWITCH ASSEMBLY HEAD HEADLIGHT DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT IN ON OR START LEFT HEADLIGHT ASSEMBLY LIGHT CONTROL LT BLU WIRE LT GRN WIRE MARKER OFF ORG/ WIRE PARKING PNK WIRE POWER MANAGEMENT CONTROL ECU (LEFT END OF DASH) RED WIRE RIGHT HEADLIGHT ASSEMBLY RIGHT OUTER MIRROR CONTROL ECU ASSEMBLY (IN RIGHT DOOR) RIGHT OUTER REAR VIEW MIRROR ASSEMBLY SIDE SIDE MARKER SKID CONTROL ECU W/ ACTUATOR ASSEMBLY (RIGHT REAR OF ENGINE COMPT) STOP FUSE R/B ASSEMBLY (LEFT FRONT FENDER APRON) STOP LIGHT CONTROL RELAY ASSEMBLY (LEFT END OF DASH) STP +B SWITCH SWITCH ASSEMBLY TAIL TOWING FUSE TRANSMISSION CONTROL ECU ASSEMBLY (A/T) (RIGHT SIDE OF DASH) TRN+ TRNI TURN TURN SIGNAL FLASHER SIGNAL ASSEMBLY (LEFT SIDE OF DASH) TURN SWITCH USA VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE DETECTION ECU-B 2 FUSE FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY GRN WIRE GRY WIRE HEATER CONTROL PANEL (RADIO RECEIVER ASSEMBLY) HOT AT ALL TIMES INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) IP J/B FUSE LEFT FRONT DOOR COURTESY LIGHT SWITCH (AT LEFT "B" PILLAR) LEFT REAR DOOR COURTESY LIGHT SWITCH (AT LEFT REAR "C" PILLAR) LOCK LT BLU WIRE LT GRN WIRE NAVIGATION RECEIVER ASSEMBLY SECURITY ORG/ WIRE PNK WIRE RADIO, DISPLAY RECEIVER ASSEMBLY SECURITY RED WIRE RIGHT FRONT DOOR LOCK MOTOR (IN FRONT PASSENGER'S DOOR) SECU SECURITY IND STOP LIGHT SWITCH ASSEMBLY (ON BRAKE PEDAL BRACKET) UNLOCK W/ NAVIGATION RECEIVER W/ RADIO RECEIVER W/ RADIO, DISPLAY RECEIVER WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE

BATTERY COOLING BLOWER ASSEMBLY CENTER BATTERY VOLTAGE SENSOR BLK WIRE BRAKE CONTROL POWER SUPPLY ASSEMBLY BRN WIRE DOOR CONTROL RECEIVER FUEL LID COURTESY SWITCH FUEL PUMP, FUEL SENDER GAUGE ASSEMBLY HV BATTERY JUNCTION BLOCK ASSEMBLY INTER LOCK SWITCH INVERTER RELAY J/C JUNCTION CONNECTOR LEFT "C" PILLAR) LEFT BATTERY COOLING BLOWER ASSEMBLY LEFT BLIND SPOT MONITOR SENSOR LEFT FRONT POWER SEAT SWITCH ASSEMBLY LEFT FRONT SEAT INNER BELT ASSEMBLY LEFT REAR COMBINATION LIGHT ASSEMBLY LEFT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LEFT REAR SIDE MARKER LIGHT ASSEMBLY LEFT SEAT BACK CLIMATE CONTROL BLOWER LEFT SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY LEFT SEAT HEATER CONTROL SUB-ASSEMBLY LEFT SEAT VARIABLE CUSHION SWITCH OCCUPANT DETECTION ECU REAR POWER POINT SOCKET ASSEMBLY RIGHT BATTERY COOLING BLOWER ASSEMBLY RIGHT BLIND SPOT MONITOR SENSOR RIGHT FRONT POWER SEAT SWITCH RIGHT FRONT POWER SEAT SWITCH ASSEMBLY RIGHT FRONT SEAT INNER BELT ASSEMBLY RIGHT REAR COMBINATION LIGHT ASSEMBLY RIGHT REAR DOOR W/ MOTOR LOCK ASSEMBLY RIGHT REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RIGHT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RIGHT REAR SIDE MARKER LIGHT ASSEMBLY RIGHT SEAT BACK CLIMATE CONTROL BLOWER RIGHT SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY RIGHT SEAT HEATER CONTROL SUB-ASSEMBLY RIGHT SEAT VARIABLE CUSHION SWITCH STEREO COMPONENT AMPLIFIER ASSEMBLY VOLTAGE INVERTER ASSEMBLY WHT WIRE WHT/BLK WIRE

AIR FUEL RATIO SENSOR (BANK 1 SENSOR 1) SHIELD AIR FUEL RATIO SENSOR (BANK 2 SENSOR 1) SHIELD ASSEMBLY BLK WIRE BRN WIRE CERTIFICATION ECU ASSEMBLY CLEARANCE WARNING ECU ASSEMBLY COMBINATION METER ASSEMBLY CONSOLE BOX ILLUMINATION LIGHT CRANK POSITION SENSOR SHIELD DCM (TELEMATICS TRANSCEIVER) FUEL LID OPENER SWITCH HEADLIGHT DIMMER SWITCH ASSEMBLY HEADLIGHT DIMMER SWITCH ASSEMBLY POWER TILT MOTOR HEATER CONTROL PANEL (RADIO RECEIVER ASSEMBLY) INTAKE MASS AIR FLOW METER SUB-ASSEMBLY SHIELD KNOCK CONTROL SENSOR (BANK 1, 2) SHIELD NCA WIRE ORG/ WIRE OXYGEN SENSOR (BANK 1 SENSOR 2) SHIELD OXYGEN SENSOR (BANK 2 SENSOR 2) SHIELD PARKING DOOR ASSIST CONTROL ECU SWITCH ASSEMBLY A/C AMPLIFIER ASSEMBLY PATTERN SELECT SWITCH ASSEMBLY POWER BACK DOOR MAIN SWITCH METER LIGHT MIRROR CONTROL SUB- RHEOSTAT ASSEMBLY RIGHT VISOR ASSEMBLY SATELLITE SWITCH SET SHIFT LOCK CONTROL ECU SUB-ASSEMBLY STEERING MAIN LOCK BODY ACTUATOR ECU ASSEMBLY STEERING SENSOR THROTTLE W/ MOTOR BODY ASSEMBLY SHIELD TIRE PRESSURE WARNING RESET SWITCH VEHICLE APPROACHING SPEAKER CONTROLLER VSC OFF SWITCH WATER TEMPERATURE SWITCH WHT WIRE WHT/BLK WIRE

+S SI 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 IG AMPLIFIER ASSEMBLY (CENTER REAR OF VEHICLE) BLK WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CS CHK DCM (TELEMATICS TRANSCEIVER) DOWN ENGINE CONTROLS SYSTEM ENGINE OIL PRESSURE SWITCH ASSEMBLY (LOWER FRONT LEFT SIDE OF ENGINE) ENTER FR FE TX+ FUEL PUMP, FUEL SENDER (TOP OF FUEL TANK) GAUGE 2 FUSE GRN WIRE GRY WIRE HOT IN ON OR START INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEVEL WARNING SWITCH ASSEMBLY (FRONT RIGHT CORNER OF ENGINE COMPT) LT BLU WIRE LT GRN WIRE MENU MSSL ET ES RHUP RHDW A/B NAVIGATION RECEIVER ASSEMBLY ORG/ WIRE PBLT PNK CANH CANL WIRE PNK WIRE POWER MANAGEMENT CONTROL ECU (LEFT END OF DASH) RED WIRE RIGHT STEERING PAD SWITCH SKID CONTROL ECU W/ ACTUATOR ASSEMBLY (RIGHT REAR OF ENGINE COMPT) SOUND SYSTEMS SPDI SPDP SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY STEREO COMPONENT VIO WIRE W/ NAVIGATION W/ RADIO RECEIVER TYPE W/ RADIO, DISPLAY RECEIVER TYPE W/O NAVIGATION WATER TEMPERATURE SWITCH WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

+ECU 30 13 BECU CANL 31 32 29 14 ALTB IG 32 13 14 SWG ILL- ILL+ ACAN BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CONSOLE BOX ILLUMINATION LIGHT ASSEMBLY D/L ALT B FUSE DC/DC FUSE DISTANCE CONTROL DOOR CONTROL SWITCH ASSEMBLY ENGINE ROOM J/B ASSEMBLY (LEFT SIDE OF ENGINE COMPT) ENTER FRONT WIPER DEICER SWITCH FUSE GAUGE 2 FUSE GLOVE BOX LIGHT ASSEMBLY GRN WIRE GRY WIRE HAZARD WARNING SIGNAL SWITCH ASSEMBLY HEAD TAIL AUTO HEATER CONTROL PANEL (RADIO RECEIVER ASSEMBLY) ADIM ILL+ ILL- SWG HOOK HOT AT ALL TIMES HOT W/ ACC 1 RELAY ENERGIZED HOT W/ IG 2 RELAY ENERGIZED ILL DISPLAY (UNDER ASSEMBLY CENTER FLOOR CONSOLE) ILL ILL ILL- REMOTE OPERATION SWITCH LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE MAIN BODY ECU INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) MENU MODE MULTI INFORMATION DISPLAY ASSEMBLY (W/ RADIO RECEIVER) MULTI- NAVIGATION RECEIVER ASSEMBLY OFF (CANADA) DRL OFF (USA) HEADLIGHT DIMMER SWITCH ASSEMBLY OVERHEAD MODULE ILL+ PANEL FUSE PNK ADIM WIRE PNK WIRE RADIO, DISPLAY RECEIVER ASSEMBLY RED WIRE RELAY ENERGIZED RIGHT STEERING PAD SWITCH SEEK SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY TAIL TAIL RELAY VIO WIRE VOICE VOLUME LEFT STEERING PAD SWITCH W/ NAVIGATION RECEIVER W/ RADIO RECEIVER W/ RADIO, DISPLAY RECEIVER WHT WIRE WHT/BLK WIRE YEL WIRE