Lexus RX III (2008-2012) org/ Wiring diagrams

ADIM BLK WIRE BLU WIRE BRN WIRE CERTIFICATION ECU ASSEMBLY (RIGHT SIDE OF DASH) COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CANH CANL DCM (TELEMATICS TRANSCEIVER) (UNDER CENTER CONSOLE) DOWN ENGINE SWITCH FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY FUEL LID OPENER GRN WIRE GRY WIRE HEADLIGHT CLEANER SWITCH ASSEMBLY LIGHT CONTROL RHEOSTAT LT GRN WIRE MAIN SWITCH ASSEMBLY MASTER SWITCH ASSEMBLY MULTIPLEX NETWORK ODO TRIP ORG/ WIRE PNK WIRE RADIO RECEIVER ASSEMBLY RED WIRE SATELLITE SWITCH SET SEAT HEATER SHIFT POSITION INDICATOR 2 1 ILL- ILL+ SUSPENSION CONTROL SWITCH SUSPENSION CONTROL SWITCH 2 SWG SWIL SWITCH VIO WIRE VSC OFF SWITCH W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY TAIL YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 LMVR 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 RMVR 1 2 3 4 5 6 7 8 9 MM 10 11 12 13 14 ECI- BDR BDR CANH CANP ECI+ PNK WIRE BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BRN WIRE CANN CANP CERTIFICATION ECU ASSEMBLY (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM MIRRORS SYSTEM EC+ ECI+ ECI+ MSWE BDR ECU-B 1 FUSE ECU-B 2 FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) F/L DOOR FUSE F/R DOOR FUSE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEFT OUTER MIRROR CONTROL ECU ASSEMBLY (IN LEFT FRONT DOOR) LEFT OUTER REAR VIEW MIRROR ASSEMBLY (IN LEFT FRONT DOOR) LMHR LM+R MR- HTR- HSSR LT BLU WIRE LT GRN WIRE MAIN BODY ECU MIRROR ADJUST SWITCH MIRROR AUTO RETRACT SWITCH MIRROR RETRACT SWITCH MIRROR SELECT SWITCH MIRRORS SYSTEM MR+ HTR+ LVC VSSR EC+ MR+ HTR+ RVC VSSR EC+ MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY ORG/ WIRE PNK WIRE RED WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT OUTER MIRROR CONTROL ECU ASSEMBLY (IN RIGHT FRONT DOOR) RIGHT OUTER REAR VIEW MIRROR ASSEMBLY (IN RIGHT FRONT DOOR) RMHR RM+R MR- HTR- HSSR SEAT MEMORY SWITCH SET- SIG CPUB GND CANN CANP SIG CPUB PNK WIRE VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

2 5 4 1 RSSI DATA +5 GND 5 15 16 RCO RDA RSSI 6 9 8 4 3 2 1 13 7 CPUB CANP CANN 7 8 4 CANN CANP PBCL 9 10 CANH CANL BLK WIRE BLU WIRE BRN WIRE CANN CERTIFICATION ECU ASSEMBLY (RIGHT SIDE OF DASH) COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DOOR CONTROL RECEIVER (RIGHT "C" PILLAR) ECU ASSEMBLY (IN LEFT FRONT DOOR) ECU-B 1 FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FLCY CANP CANN FUSE GND TIM- GRN WIRE GRY WIRE HEADLAMP DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (AT LEFT "B" PILLAR) LEFT FRONT POSITION CONTROL ECU, SWITCH ASSEMBLY LEFT FRONT SEAT INNER BELT ASSEMBLY (UNDER DRIVER'S SEAT) LEFT OUTER MIRROR CONTROL LT BLU WIRE LT GRN WIRE MAIN BODY ECU MM MSWE GND MSW MULTIPLEX TILT, TELESCOPIC ECU (AT BASE OF STEERING COLUMN) ORG/ WIRE PNK WIRE POWER TILT MOTOR (ON STEERING COLUMN) RED WIRE RELAY ENERGIZED SEAT MEMORY SWITCH SET- SYSTEM TELESCO SHORT TELESCOPIC MOTOR TELESCOPIC SENSOR TEM TES TI, TE FUSE TILT DOWN TILT UP TELESCO STRETCH TILT, TELESCOPIC SWITCH TIM TIS VCE VCI VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CANH CANL SWG COMPUTER DATA LINES SYSTEM CB+ COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM TX+ TX- PNK WIRE CV+ ECU-ACC FUSE ECU-B 2 FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FUSE GAUGE 1 FUSE GPS ANTENNA GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IEEE IEEE CONNECTOR (UNDER CENTER CONSOLE) IG MACC MIN+ MIN- SGND INSTRUMENT PANEL J/B LT BLU WIRE LT GRN WIRE MACC MCI- MCO- MCVD MUTE NAVIGATION RECEIVER ASSEMBLY NCA WIRE NTSO V+ CA+ ORG/ WIRE OVERHEAD MODULE PARKING BRAKE SWITCH ASSEMBLY (LEFT END OF DASH) PKB SPD INSTRUMENT CLUSTER SYSTEM PNK WIRE RAD 1 FUSE RAD 3 FUSE REAR TELEVISION CAMERA ASSEMBLY (LOWER CENTER OF BACK DOOR) RED WIRE SGND SPI+ SPO- TELEPHONE MICROPHONE ASSEMBLY USB USBG USBV V- CGND VIO WIRE VOR- VOT+ VV+ NTSF VMTF VV- W/ LEXUS ENFORM W/O LEXUS ENFORM WHT WIRE WHT/BLK WIRE YEL WIRE

+B TX- TX+ PNK WIRE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 +B 1 3 5 BI SI EI PNK WIRE 1 5 3 6 4 2 BI EI SI EO SO BO 2 1 PNK WIRE 23 13 14 10 SWG TX+ TX- BLK WIRE BLU WIRE BRN WIRE CANL CANH BLSW TX- TX+ CB+ CLEARANCE WARNING BUZZER 1 (CENTER OF DASH) COMPUTER DATA LINES SYSTEM CV+ CV- CV+ CGND CB+ SCV- SCV+ SGND SCB+ EF BBZ ENGINE ROOM FUSE GRN WIRE GRY WIRE GVIF HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEFT STEERING PAD SWITCH LEFT ULTRASONIC SENSOR 1 (LEFT FRONT CORNER OF ENGINE COMPT) LEFT ULTRASONIC SENSOR 2 (BEHIND REAR BUMPER) LEFT ULTRASONIC SENSOR 3 (BEHIND REAR BUMPER) LT BLU WIRE MONITOR MULTI-DISPLAY CONTROLLER SUB-ASSEMBLY (UNDER CENTER CONSOLE) NAVIGATION RECEIVER ASSEMBLY NCA WIRE ORG/ WIRE PARKING ASSIST ECU (RIGHT SIDE OF DASH) PNK WIRE RAD 1 FUSE RAD 3 FUSE R/B ASSEMBLY (ON LEFT SIDE SIDE OF ENGINE COMPT) RADIO 2 FUSE RED WIRE RIGHT ULTRASONIC SENSOR 1 (RIGHT FRONT CORNER OF ENGINE COMPT) RIGHT ULTRASONIC SENSOR 3 (BEHIND REAR BUMPER) SCB+ SCV+ SGND SIDE TELEVISION CAMERA ASSEMBLY (FRONT PASSENGER'S DOOR) SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

AIR CONDITIONING SYSTEM AIR SUS RDI FUSE FAN 2 FUSE AIR SUS RELAY STOP ANTI-LOCK BRAKES RELAY SYSTEM (DIAGRAM 2 OF 4) ANTI-LOCK BRAKES SYSTEM BATTERY BLK WIRE BLU WIRE BRN WIRE COMPT) COOLING FANS, AIR CONDITIONING SYSTEMS DC/DC-S FUSE DEICER RELAY DEICER FUSE FUSE DOME FUSE ECU-B 1 FUSE ECU-B 2 FUSE EFI 1 FUSE EFI MAIN FUSE EFI MAIN RELAY ELECTRONIC POWER STEERING SYSTEM FUSE BOX (REAR OF CAPACITOR LUGGAGE FUSE COMPT) ELECTRONICALLY CONTROLLED MAIN BRAKE SYSTEM 1 FUSE FUSE ENGINE CONTROLS SYSTEM ENGINE DOOR LOCKS CONTROLS SYSTEM SYSTEM ENGINE ROOM J/B ASSEMBLY (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE EXTERIOR LIGHTS, SHIFT INTERLOCK, ENGINE CONTROLS SYSTEMS EXTERIOR NAVIGATION, SOUND LIGHTS SOUND SYSTEMS SYSTEMS SYSTEM FILTER FUSE FROM SHORT PIN DCDC (DIAGRAM FUSE 1 OF 4) FUSE FUSIBLE LINK BLOCK ASSEMBLY (LEFT REAR EPS OF LUGGAGE FUSE COMPT) GRN WIRE GRY WIRE H-LP CLN FUSE HAZ RAD 3 RAD 1 FUSE FUSE FUSE FUSE FUSE HEADLIGHTS SYSTEM HEATER FUSE IMMOBI STR ETCS LOCK FUSE FUSE FUSE IP J/B FUSE LT GRN WIRE MAIN FUSE NCA WIRE NOISE FILTER (GHOST BUSTER) (LEFT FRONT OF ENGINE COMPT) ORG/ WIRE PNK WIRE RDI FAN 1 FUSE RED WIRE RELAY (DIAGRAM 2 OF 4) RR DEF FUSE RR DEF RELAY PBD FUSE RR-B FUSE SHORT PIN TO DCDC FUSE (DIAGRAM 1 OF 4) TO HV R/B 2 (DIAGRAM 2 OF 4) TO INSTRUMENT PANEL (DIAGRAM 3 OF 4) TOWING FUSE TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

A/F FUSE COMPT) A/F RELAY AFS FUSE AIR CONDITIONING SYSTEM AIR CONDITIONING, COOLING FANS SYSTEMS AIR CONDITIONING, NAVIGATION, SEATS SYSTEMS ANTI-LOCK BRAKES SYSTEM BATT FAN FUSE BI-XENON RELAY BKUP LP FUSE BLK WIRE BLU WIRE BRN WIRE DEFOGGER, AIR CONDITIONING SYSTEMS ELECTRONICALLY CONTROLLED BRAKE SYSTEM 2 FUSE ELECTRONICALLY CONTROLLED BRAKE SYSTEM MAIN 1 FUSE ELECTRONICALLY CONTROLLED BRAKE SYSTEM MAIN 2 FUSE ELECTRONICALLY CONTROLLED BRAKE SYSTEM MAIN 3 FUSE ENGINE CONTROLS SYSTEM ENGINE CONTROLS, ANTI-LOCK BRAKES SYSTEMS ENGINE ROOM R/B 3 (LEFT SIDE OF ENGINE COMPT) A/C W/P FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) EXTERIOR SUPPLEMENTAL LIGHTS RESTRAINTS SYSTEM SYSTEM FROM GAUGE 2 FUSE (DIAGRAM 2 OF 4) FROM RAD 1 FUSE (DIAGRAM 1 OF 4) HV R/B 2 FUSE FUSE GAUGE 2 FUSE GRN WIRE HEAD HEAD DRL RELAY RELAY RELAY (LL) (RL) HEADLIGHTS SYSTEM HEATER 2 FUSE HORN FUSE HORN RELAY HV R/B 1 FUSE IGN FUSE INSTRUMENT CLUSTER, SHIFT INTERLOCK, DOOR LOCKS SYSTEMS MAIN FUSE (DIAGRAM 1 OF 4) MAYDAY/ TEL FUSE NAVIGATION SYSTEM OIL PMP FUSE ORG/ WIRE PD FUSE PNK WIRE RED WIRE RELAY S-HORN FUSE S-HORN RELAY SUPPLEMENTAL RESTRAINTS SYSTEM TO INSTRUMENT PANEL J/B (DIAGRAM 3 OF 4) TO POWER MANAGEMENT CONTROL ECU (DIAGRAM 4 OF 4) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

ANTI-LOCK BRAKES SYSTEM BLK WIRE BLU WIRE BRN WIRE CIG RADIO 2 FUSE FUSE EXTERIOR EXTERIOR LIGHTS LIGHTS, SYSTEM HEADLIGHTS SYSTEMS FROM FROM FILTER FUSE (DIAGRAM 1 OF 4) FRONT POWER POINT SOCKET ASSEMBLY FUSE GAUGE 1 FUSE GRN WIRE GRY WIRE HEATER FUSE FUSE FR RR FR WIP WASH WIP FUSE FUSE FUSE INSTRUMENT CLUSTER, MIRRORS, NAVIGATION SYSTEMS LT BLU WIRE MAIN BODY ECU NAVIGATION SYSTEMS ORG/ WIRE P/POINT FUSE PNK WIRE REAR POWER POINT SOCKET ASSEMBLY RED WIRE RELAY RELAY RELAY RH LH S-HTR S-HTR FUSE FUSE RR WASH FUSE SEATS SYSTEM SHIFT INTERLOCK SYSTEM SOUND SYSTEMS SOUND, NAVIGATION SYSTEMS TAIL PANEL FUSE FUSE MAIN BODY ECU TRLY TAIL RELAY TO D/L ALT B TO ECU-ACC TO POWER MANAGEMENT CONTROL ECU (DIAGRAM 4 OF 4) TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE WARNING SYSTEM WHT WIRE WHT/BLK WIRE WIPER/ WASHER, SEATS SYSTEMS YEL WIRE

8 3 4 2 PNK WIRE BLK WIRE BLU WIRE BOF BOR BRN WIRE CLEARANCE WARNING BUZZER 1 (CENTER OF DASH) CLEARANCE WARNING ECU ASSEMBLY (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL ECU (LEFT SIDE OF DASH) ENGINE ROOM R/B 2 (LEFT REAR OF ENGINE COMPT) FUSE GRN WIRE HOT IN ON OR START HOT W/ IGCT MAIN RELAY ENERGIZED IGCT 3 FUSE INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEFT ULTRASONIC LEFT ULTRASONIC SENSOR 1 (LEFT FRONT CORNER OF ENGINE COMPT) LEFT ULTRASONIC SENSOR 3 (BEHIND REAR BUMPER) LT BLU WIRE ORG/ WIRE PARK/NEUTRAL POSITION SWITCH PNK WIRE POWER MANAGEMENT RED WIRE RIGHT ULTRASONIC SENSOR 1 (RIGHT FRONT CORNER OF ENGINE COMPT) RIGHT ULTRASONIC SENSOR 2 (BEHIND REAR BUMPER) RIGHT ULTRASONIC SENSOR 3 (BEHIND REAR BUMPER) SENSOR 2 (BEHIND REAR BUMPER) SOF BBZ EF SOR WHT WIRE WHT/BLK WIRE YEL WIRE

+B SPI+ SPI- 1 2 3 4 5 6 7 USB USBG VOT+ USBV VOT- VOR- VOR+ 5 3 4 1 BBO- AIR BAG SENSOR ASSEMBLY (BELOW CENTER CONSOLE) BACKUP BATTERY (MAYDAY BATTERY) (RIGHT SIDE OF DASH) BBI+ BBO- BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DCM (TELEMATICS TRANSCEIVER) (UNDER CENTER CONSOLE) ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FUSE GPS ANTENNA GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START ILL+ GSW SIL SIG- INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LT GRN WIRE MACC MAYDAY/TEL FUSE MCO- MIN MUTE MCO+ MCO- NAVIGATION RECEIVER ASSEMBLY (W/ NAVIGATION) NCA WIRE ORG/ WIRE OVERHEAD MODULE PNK 10 4 FR- FR+ WIRE PNK WIRE RADIO 2 FUSE RADIO RECEIVER ASSEMBLY RED WIRE RIGHT FRONT SPEAKER ASSEMBLY 2 RIGHT FRONT SPEAKER ASSEMBLY 3 RRID SGND SGND MCVD MCI+ MCI- SLED SPDP SPO+ SPO- STEREO COMPONENT AMPLIFIER ASSEMBLY (LUGGAGE COMPT) TELEPHONE ANTENNA TMUT TWR- TWR+ USB USBG USBV VIO WIRE VOR- VOT+ W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLK WIRE YEL WIRE