Lexus RX III facelift (2012-2015) computer data lines system Wiring diagrams

+BC BLK WIRE BLU WIRE BRAKE CONTROL POWER SUPPLY ASSEMBLY (REAR OF VEHICLE CHASSIS) BRAKE PEDAL STROKE SENSOR ASSEMBLY (ON BRAKE PEDAL BRACKET) BRN WIRE BZ VBZ CAPACITOR FUSE COMPUTER DATA LINES SYSTEM CSW ENA ENA FAIL FAIL FL+ FL- FUSE FUSE BOX (REAR OF LUGGAGE COMPT) GAUGE 2 FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL J/B (LEFT SIDE LBL LEFT "C" PILLAR) LEFT FRONT SPEED SENSOR (LEFT FRONT HUB ASSEMBLY) LT GRN WIRE OF DASH) ORG/ WIRE OUT PNK PNK WIRE PNK WIRE RED WIRE RELAY ENERGIZED RL- RL+ SKG SKID CONTROL ECU (RIGHT SIDE OF DASH) SKS STOP LIGHT CONTROL RELAY ASSEMBLY (LEFT END OF DASH) STPO PNK WIRE VCSK VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

ABS MAIN 2 FUSE ABS- MAIN 1 FUSE BLK WIRE BLU WIRE BRAKE FLUID LEVEL WARNING SWITCH (IN BRAKE FLUID RESERVOIR) BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B 3 (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK PNK WIRE PNK WIRE RED WIRE STOP LIGHT SWITCH ASSEMBLY (ON BRAKE PEDAL BRACKET) VSC OFF SWITCH WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 5 6 TSL TSR CLTE CLTS CLTB SOLAR SENSOR 17 3 HZSW 4 2 FRCY FLCY 6 28 29 30 20 21 22 13 14 3 RCTY AIR CONDITIONING SYSTEM AUTOMATIC LIGHT CONTROL SENSOR (TOP RIGHT SIDE OF DASH) BLK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE CENTER STOP LIGHT ASSEMBLY COMPUTER DATA LINES SYSTEM D/L ALT B FUSE DCDC J/B ASSEMBLY FUSE (LEFT SIDE OF ENGINE COMPT) DEF DEF ECU-ACC FUSE ENGINE ROOM FRONT DOOR) FUSE 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 INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) L/P LCTY LEFT "C" PILLAR) LEFT LICENSE PLATE LIGHT ASSEMBLY LEFT OUTER MIRROR CONTROL ECU ASSEMBLY (IN LEFT FRONT DOOR) LEFT OUTER REAR VIEW MIRROR ASSEMBLY (ON LEFT LEFT REAR COMBINATION LIGHT ASSEMBLY LEFT REAR RIGHT REAR SIDE MARKER SIDE MARKER LIGHT LIGHT ASSEMBLY ASSEMBLY LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) NCA WIRE NOISE FILTER (CENTER STOP LIGHT ASSEMBLY) (LEFT "D" PILLAR) RED WIRE RIGHT LICENSE PLATE LIGHT ASSEMBLY RIGHT REAR COMBINATION LIGHT ASSEMBLY STOP STP+ TAIL TAIL FUSE TAIL RELAY TRN+ TRNI TURN VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 OUT 1 23 24 2 IG+ CANH CANL PNK WIRE 4 16 STPO BLK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DRIVING SUPPORT ECU ASSEMBLY ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FRONT DOOR) GAUGE 1 FUSE GAUGE 2 FUSE GRN WIRE GRY WIRE HAZ FUSE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) L/P LEFT HEADLIGHT ASSEMBLY LT BLU WIRE LT GRN WIRE PARKING LIGHT PNK WIRE POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) RED WIRE RIGHT HEADLIGHT ASSEMBLY RIGHT OUTER MIRROR CONTROL ECU ASSEMBLY (IN RIGHT FRONT DOOR) RIGHT OUTER REAR VIEW MIRROR ASSEMBLY (ON RIGHT SHIFT LOCK CONTROL ECU SUB-ASSEMBLY SIDE MARKER SKID CONTROL ECU (RIGHT SIDE OF DASH) STOP FUSE STOP LIGHT CONTROL RELAY ASSEMBLY (LEFT END OF DASH) STP +B STP+ SWITCH ASSEMBLY TOWING FUSE TRN+ TRNI TURN VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

23 24 PNK CANH CANL WIRE BLK WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM FR WASH FUSE FR WIP FUSE FRONT WASHER SWITCH FRONT WINDSHIELD WASHER MOTOR, PUMP ASSEMBLY (IN WASHER FLUID RESERVOIR) FRONT WIPER SWITCH FRWA GRY WIRE HOT IN ON OR START INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEVEL WARNING SWITCH (IN WASHER FLUID RESERVOIR) LT BLU WIRE MIST OFF PNK WIRE RED WIRE VIO WIRE WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER MOTOR ASSEMBLY (LEFT REAR OF ENGINE COMPT) WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

1 2 3 4 5 6 IG 24 23 CANL CANH PNK WIRE 7 8 9 10 11 12 GND CLSW RDA BLK WIRE BRN WIRE CANN CANP COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM FUSE GAUGE 2 FUSE GRY WIRE HOT IN ON OR START INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LT GRN WIRE RED WIRE TIRE PRESSURE WARNING ANTENNA, RECEIVER (REAR CENTER OF ROOF) TIRE PRESSURE WARNING ECU (BEHIND RIGHT SIDE OF DASH) TIRE PRESSURE WARNING RESET SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE

1 2 3 4 5 6 IG STP SP+ 14 13 CANH CANL 8 9 10 11 12 SP- BLK WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ENGINE OIL PRESSURE SWITCH (LOWER LEFT FRONT OF ENGINE) ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) GAUGE 1 FUSE GAUGE 2 FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) PNK WIRE RED WIRE RELAY ENERGIZED SFTP SFTP OPSW SKID CONTROL ECU (RIGHT SIDE OF DASH) STOP FUSE STOP LIGHT SWITCH ASSEMBLY (ON BRAKE PEDAL BRACKET) VEHICLE APPROACHING SPEAKER (BEHIND LEFT SIDE OF FRONT FASCIA) VEHICLE APPROACHING SPEAKER CONTROLLER (CENTER OF DASH) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

A/F RELAY BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE C/OPN RELAY CANH CAN+ EC BATT CANISTER PRESSURE SENSOR CANISTER PUMP MODULE (UNDER LEFT SIDE OF VEHICLE CHASSIS) CANL CAN- COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM ECM (RIGHT FRONT OF ENGINE COMPT) ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) F/PMP FUSE EFI 2 FUSE FPR VPMP MPMP FUSE GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES ENGINE ROOM J/B ASSEMBLY (LEFT SIDE OF ENGINE COMPT) A/F FUSE INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEAK DETECTION PUMP LT GRN WIRE ORG/ WIRE PNK WIRE PPMP EPPM VCPP VC PTNK RED WIRE RELAY ENERGIZED RFC VENT VALVE VIO WIRE VSV (FUEL VAPOR-CONTAINMENT VALVE) (UNDER LEFT REAR OF VEHICLE) WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE

13 23 24 21 PNK CANH CANL CHK WIRE 15 14 PNK WIRE ACCELERATOR POSITION SENSOR (ON ACCELERATOR PEDAL ASSEMBLY) BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ECU-B 1 FUSE ENGINE ROOM R/B 2 (LEFT REAR OF ENGINE COMPT) ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES HV R/B 1 FUSE IGCT 2 FUSE IGCT 3 FUSE IGCT MAIN RELAY LT BLU WIRE LT GRN WIRE ORG/ WIRE PCU FUSE PNK 15 56 WIRE PNK WIRE RED WIRE SHIFT LEVER POSITION SENSOR (ON TRANSMISSION) TRANSMISSION CONTROL SWITCH (UNDER FRONT OF CENTER CONSOLE) VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

27 28 STP- BATT FAN FUSE BATT FAN RELAY BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BTH+ CENTER BATTERY COOLING BLOWER MOTOR (NEAR HV BATTERY) COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B 3 (LEFT SIDE OF ENGINE COMPT) ETHB FCTL FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEFT "C" PILLAR) LEFT BATTERY COOLING BLOWER MOTOR (NEAR HV BATTERY) LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK WIRE POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) PSOK RED WIRE RELAY ENERGIZED SETU SFTD SHIELD SMRB SMRG SPDI THB VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE