Lexus RX III facelift (2012-2015) ecu-b 2 fuse Wiring diagrams

2 3 1 PR PNK WIRE 3 1 4 2 RH 4 3 PNK WIRE A/C AMPLIFIER ASSEMBLY (RIGHT SIDE OF DASH) A/C PRESSURE SENSOR (RIGHT SIDE OF ENGINE COMPT) AUTOMATIC LIGHT CONTROL SENSOR (TOP RIGHT SIDE OF DASH) BLK WIRE BLOWER W/ FAN MOTOR (RIGHT SIDE OF DASH) BLU WIRE BLW BRN WIRE CANH CANL SG-2 CLTB CLTE CLTS COMPUTER DATA LINES SYSTEM COOLER THERMISTOR (AMBIENT TEMPERATURE SENSOR) (FRONT OF ENGINE COMPT) DEFOGGER SYSTEM DFG DGS ECU-B 2 FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE FDFI FUSE GRN WIRE GRY WIRE HEATER FUSE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) OF ENGINE COMPT) ORG/ WIRE PNK 1 2 3 4 5 6 7 8 9 10 11 12 13 IG+ WIRE PNK FDEF WIRE PNK WIRE PRE PNK WIRE RED WIRE RH TR SEATS SYSTEM SMOG VENTILATION SENSOR (IF EQUIPPED) (CENTER FRONT OF ENGINE COMPT) SOLAR SENSOR SVDB SVPB SVDS SVPS SW 1 TAM DGS TSL TSP TSD SG-1 TSR VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 CANH 1 2 3 4 5 6 7 8 PNK WIRE 1 2 3 4 5 6 R+ 1 2 3 4 5 CBP 1 2 PIG PGND 1 2 PIG VGND ASST BLK WIRE BLU WIRE BRN WIRE CBPE CEP CEPF COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ECU-B 1 FUSE ECU-B 2 FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) EPS FUSE EPS FUSE ASSEMBLY (LEFT REAR OF LUGGAGE COMPT) FUSE FUSIBLE LINK BLOCK GAUGE 2 FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START HOT W/ HV BATTERY JUNCTION BLOCK ASSEMBLY (LEFT SIDE OF LUGGAGE COMPT) IG DDOK ASST INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MOTOR RESOLVER NCA WIRE ORG/ WIRE PNK CANH WIRE PNK IG CANL WIRE PNK WIRE POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) POWER STEERING CONVERTER ASSEMBLY POWER STEERING ECU ASSEMBLY (LEFT END OF DASH) POWER STEERING MOTOR POWER STEERING MOTOR ASSEMBLY (INTEGRAL TO POWER POWER STEERING TORQUE SENSOR (INTEGRAL TO POWER STEERING ECU ASSEMBLY) PSOK RCOS RSIN RED WIRE RELAY ENERGIZED RGND SKID CONTROL ECU (RIGHT SIDE OF DASH) STEERING ECU ASSEMBLY) STEERING SENSOR (IN STEERING COLUMN) TORQUE SENSOR WHT WIRE WHT/BLK 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

1 2 3 4 5 6 7 8 9 MM 10 11 12 13 14 ECI+ TRNI ECI- BDSL BDR 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 EXTERIOR LIGHTS SYSTEM MIRRORS SYSTEM ECU-B 1 FUSE ECU-B 2 FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FL DOOR FR DOOR FUSE FUSE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEFT BLIND SPOT MONITOR SENSOR (BEHIND LEFT SIDE OF REAR FASCIA) LEFT OUTER MIRROR CONTROL ECU ASSEMBLY (IN LEFT FRONT DOOR) LEFT OUTER REAR VIEW MIRROR ASSEMBLY (ON LEFT FRONT DOOR) LT BLU WIRE LT GRN WIRE MAIN BODY ECU MIRROR ADJUST SWITCH MIRROR AUTO RETRACT SWITCH MIRROR RETRACT SWITCH MIRROR SELECT SWITCH MIRRORS SYSTEM EXTERIOR LIGHTS SYSTEM MIRRORS SYSTEM MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY OMIL OMIR ORG/ WIRE PNK WIRE RED WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT BLIND SPOT MONITOR SENSOR (BEHIND RIGHT SIDE OF REAR FASCIA) RIGHT OUTER MIRROR CONTROL ECU ASSEMBLY (IN RIGHT FRONT DOOR) RIGHT OUTER REAR VIEW MIRROR ASSEMBLY (ON RIGHT FRONT DOOR) SEAT MEMORY SWITCH SET- SIG CPUB GND CANN CANP SIG CPUB GND CANN CANP ECI+ TRNI ECI- BDSR BDR PNK WIRE VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK 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

1 10 9 MV M+ MH 1 10 MV M+ MH 14 8 9 BDR CANN CANP PNK WIRE 3 11 MR MF BLK WIRE BLK/GRN WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BRN WIRE BSM CANH COMPUTER DATA LINES SYSTEM CANL CANN CANP CERTIFICATION ECU ASSEMBLY (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM EC+ ECU-B 2 FUSE ENGINE COMPT) ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF F/L DOOR FUSE F/R DOOR FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HTR INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) L/P LEFT OUTER MIRROR CONTROL ECU ASSEMBLY (IN LEFT FRONT DOOR) LEFT OUTER REARVIEW MIRROR ASSEMBLY (ON LEFT FRONT DOOR) LT BLU WIRE LT GRN WIRE MAIN BODY ECU MIRROR ADJUST SWITCH MIRROR AUTO RETRACT SWITCH MIRROR RETRACT SWITCH MIRROR SELECT SWITCH MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY ORG/ WIRE PNK HSSR WIRE RED WIRE RED/WHT WIRE RIGHT OUTER MIRROR CONTROL ECU ASSEMBLY (IN RIGHT FRONT DOOR) RIGHT OUTER REARVIEW MIRROR ASSEMBLY (ON RIGHT FRONT DOOR) TRN+ VDD VIO WIRE VSSR WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLU WIRE BRN WIRE BZR CANL CANH COMPUTER DATA LINES SYSTEM DRIVER SIDE AUTO SWITCH DRIVER SIDE DOWN SWITCH DRIVER SIDE UP SWITCH ECU-B 1 FUSE ECU-B 2 FUSE ENGINE ROOM R/B ASSEMBLY F/L DOOR FUSE FRONT PASSENGER SIDE CONTROL SWITCH GRN WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LED LEFT FRONT DOOR COURTESY LIGHT SWITCH (AT LEFT "B" PILLAR) LEFT FRONT DOOR W/ MOTOR LOCK ASSEMBLY LEFT FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY (IN DRIVER'S DOOR) LEFT REAR SIDE CONTROL SWITCH LIN LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY ORG/ WIRE PNK WIRE RED WIRE RIGHT REAR SIDE CONTROL SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE WINDOW LOCK SWITCH WIRELESS DOOR LOCK BUZZER (LEFT SIDE OF ENGINE COMPT) YEL WIRE

AGND ALO ARO ASGN ATX- AUXO BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ECU-ACC FUSE ECU-B 2 FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) GAUGE 1 FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL J/B LT BLU WIRE LT GRN WIRE MAIN ANTENNA MIN+ MACC MIN- SGND MUTE R+ L+ SLD NCA WIRE ORG/ WIRE PNK ATX- WIRE PNK TX+ TX- IVO+ IVO- WIRE PNK WIRE R- L- GND RAD 3 FUSE RADIO 2 FUSE RADIO RECEIVER ASSEMBLY RED WIRE RELAY ENERGIZED SDARS ANTENNA STEREO JACK ADAPTER ASSEMBLY 1 SUB ANTENNA SWG TXM- TXM+ UDO+ UJSG UPI VAR+ VA- VAL+ AGND ADPG ADIM VIO WIRE WHT WIRE YEL WIRE

1 4 8 9 5 2 3 +B FSR- FSR+ BSW BGND DIA GND 1 6 12 24 23 IG+ ES PBLT CANL CANH 16 24 FSR+ FSR- 18 10 LBE- LBE+ AIR BAG SENSOR ASSEMBLY (BELOW CENTER CONSOLE) BLK WIRE BLU WIRE BRN WIRE CANL CANH COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ECU-B 2 FUSE ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) FUSE GAUGE 2 FUSE GRN WIRE GRY WIRE 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 SEAT INNER BELT ASSEMBLY (UNDER DRIVER'S SEAT) LT GRN WIRE MAIN BODY ECU OCCUPANT DETECTION ECU (UNDER FRONT PASSENGER'S SEAT) ORG/ WIRE PNK WIRE RADIO, DISPLAY RECEIVER ASSEMBLY RED WIRE RELAY ENERGIZED RIGHT FRONT SEAT INNER BELT ASSEMBLY (UNDER FRONT PASSENGER'S SEAT) VIO WIRE W/ NAVIGATION W/ RADIO, DISPLAY RECEIVER TYPE W/O RADIO, DISPLAY RECEIVER TYPE W/O NAVIGATION WHT WIRE WHT/BLK WIRE YEL WIRE