Lexus RX III (2008-2012) steering pad switch assembly Wiring diagrams

1 2 3 4 5 6 7 8 9 10 OUT 5 2 4 3 IGB SGND LRRD LRDD BLK WIRE BLU WIRE BRN WIRE CCHG COMPUTER DATA LINES SYSTEM CRUISE CONTROL MAIN SWITCH DISTANCE CONTROL DRIVING SUPPORT ECU ASSEMBLY (LEFT END OF DASH) ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE INSTRUMENT PANEL J/B ASSEMBLY (LEFT SIDE OF DASH) LRRD LT BLU WIRE LT GRN WIRE MILLIMETER WAVE RADAR SENSOR ASSEMBLY (CENTER FRONT OF ENGINE COMPT) MODE ON OFF ORG/ WIRE PNK WIRE RED WIRE RELAY ENERGIZED RIGHT STEERING PAD SWITCH ASSEMBLY STEERING PAD SWITCH ASSEMBLY SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY STOP LIGHT CONTROL RELAY ASSEMBLY (LEFT END OF DASH) STOP LIGHT SWITCH ASSEMBLY (ON BRAKE PEDAL BRACKET) STP +B STP+ VIO WIRE WHT WIRE WHT/BLK WIRE WIPER/WASHER SYSTEM YEL WIRE

+B MREL 25 12 4 3 21 16 CANL CANH 6 11 35 19 27 26 34 18 17 MREL 85 86 118 119 28 29 108 VTA ASSEMBLY (IN STEERING COLUMN) BLK WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CRUISE CONTROL MAIN SWITCH ECM (RIGHT FRONT OF ENGINE COMPT) EFI EFI MAIN RELAY MAIN FUSE ENGINE ROOM R/B 2 ASSEMBLY (LEFT REAR OF ENGINE COMPT) ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) GRN WIRE HOT AT ALL TIMES HV R/B 1 FUSE IGCT 3 FUSE IGCT MAIN RELAY LT GRN WIRE M- M+ 1 2 3 5 4 6 NCA WIRE ON OFF ORG/ WIRE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (ON TRANSMISSION) PNK WIRE POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) RED WIRE SPIRAL CABLE SUB- STEERING PAD SWITCH ASSEMBLY STOP FUSE THROTTLE W/ MOTOR BODY ASSEMBLY (RIGHT REAR OF ENGINE) VCTA ETA M+ M- WHT WIRE WHT/BLK WIRE YEL WIRE

ENGINE ROOM J/B ASSEMBLY (LEFT SIDE OF ENGINE COMPT) GRY WIRE HORN HORN ASSEMBLY (HIGH PITCH) (LEFT FRONT OF ENGINE COMPT) HORN ASSEMBLY (LOW PITCH) (RIGHT FRONT OF ENGINE COMPT) HORN FUSE HORN RELAY HORN SWITCH HOT AT ALL TIMES INSTRUMENT PANEL J/B ASSEMBLY (LEFT END OF DASH) MAIN BODY ECU RED WIRE SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY WHT 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 64 15 56 54 PNK WIRE BLK WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CS CHK DCM (TELEMATICS TRANSCEIVER) DOWN ENGINE CONTROLS SYSTEM PNK WIRE ENGINE OIL PRESSURE SWITCH ASSEMBLY (LOWER LEFT FRONT 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 LT BLU WIRE LT GRN WIRE LUGGAGE COMPT) MENU MSSL ET ES RHUP RHDW A/B NAVIGATION RECEIVER ASSEMBLY ORG/ WIRE P/SB PBLT PNK CANH CANL WIRE PNK WIRE POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) RADIO RECEIVER ASSEMBLY RED WIRE RIGHT STEERING PAD SWITCH SEATS SYSTEM SKID CONTROL ECU ASSEMBLY (RIGHT SIDE OF DASH) SOUND SYSTEMS SPDI SPDP SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY STEREO COMPONENT AMPLIFIER ASSEMBLY VIO WIRE W/ NAVIGATION W/O NAVIGATION WATER TEMPERATURE SWITCH (UNDER FRONT CENTER OF VEHICLE) WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

+ECU 30 13 BECU CANL 31 32 29 14 ALTB IG 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 ECU-B 1 FUSE ENGINE ROOM R/B ASSEMBLY (ON 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 HOOK HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START ILL ILL ILL- REMOTE OPERATION SWITCH LEFT STEERING PAD SWITCH LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE MAIN BODY ECU INSTRUMENT PANEL J/B ASSEMBLY (LEFT SIDE OF DASH) MENU MODE MONITOR MULTI INFORMATION DISPLAY ASSEMBLY MULTI- ILL DISPLAY ASSEMBLY NAVIGATION RECEIVER ASSEMBLY (W/ NAVIGATION) OFF (CANADA) DRL OFF (USA) HEADLIGHT DIMMER SWITCH ASSEMBLY PANEL FUSE PNK ADIM WIRE PNK WIRE RED WIRE SEEK SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY SWG TAIL TAIL RELAY VIO WIRE VOICE VOLUME RIGHT STEERING PAD SWITCH W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM GRN WIRE GRY WIRE GVIF ILL LEFT FRONT FRONT SPEAKER SPEAKER ASSEMBLY 3 ASSEMBLY 4 LEFT FRONT SPEAKER ASSEMBLY 2 LEFT STEERING PAD SWITCH LT BLU WIRE LT GRN WIRE MODE MULTI- DISPLAY ASSEMBLY NCA WIRE NTSC OFF HOOK ON HOOK PNK WIRE REAR SPEAKER ASSEMBLY 3 RED WIRE RIGHT FRONT SPEAKER ASSEMBLY 2 RIGHT FRONT SPEAKER ASSEMBLY 3 RIGHT STEERING PAD SWITCH SEEK SPIRAL CABLE SUB-ASSEMBLY ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY TWL- TWR+ ULO+ URO+ VIO WIRE VOICE VOLUME- W/ LEXUS ENFORM W/ PARKING ASSIST W/O LEXUS ENFORM W/O PARKING ASSIST 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

BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM GRN WIRE GRY WIRE GVIF ILL LEFT FRONT FRONT SPEAKER SPEAKER ASSEMBLY 3 ASSEMBLY 4 LEFT FRONT SPEAKER ASSEMBLY 2 LEFT STEERING PAD SWITCH LT BLU WIRE LT GRN WIRE MODE MULTI- DISPLAY ASSEMBLY NCA WIRE NTSC OFF HOOK ON HOOK PNK WIRE REAR SPEAKER ASSEMBLY 3 RED WIRE RIGHT FRONT SPEAKER ASSEMBLY 2 RIGHT FRONT SPEAKER ASSEMBLY 3 RIGHT STEERING PAD SWITCH SEEK SPIRAL CABLE SUB-ASSEMBLY ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY TWL- TWR+ ULO+ URO+ VIO WIRE VOICE VOLUME- W/ LEXUS ENFORM W/ PARKING ASSIST W/O LEXUS ENFORM W/O PARKING ASSIST WHT WIRE WHT/BLK WIRE YEL WIRE

ACAN ADIM BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM GRN WIRE GRY WIRE HEATER CONTROL PANEL (RADIO RECEIVER ASSEMBLY) LEFT STEERING PAD SWITCH LT BLU WIRE LT GRN WIRE MACC MCO- MODE NCA WIRE OFF HOOK ON HOOK PNK WIRE RED WIRE RIGHT STEERING PAD SWITCH SEEK SPIRAL CABLE SUB-ASSEMBLY ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY TELEPHONE MICROPHONE ASSEMBLY OVERHEAD MODULE VIO WIRE VOICE VOLUME- W/ SAFETY CONNECT W/O SAFETY CONNECT WHT WIRE WHT/BLK WIRE YEL WIRE