Lexus RX III (2008-2012) (under center console) Wiring diagrams

BKUP LP FUSE BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B ASSEMBLY (LEFT FRONT FENDER APRON) FUSE GAUGE 2 FUSE GRN/RED WIRE GRY WIRE HOT IN ON OR START INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LT GRN WIRE ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (ON RIGHT SIDE OF TRANSMISSION) PNK CANH WIRE PNK WIRE POWER MANAGEMENT CONTROL ECU (LEFT END OF DASH) RED WIRE STAR TRANSMISSION CONTROL SWITCH (UNDER CENTER CONSOLE) WHT WIRE WHT/BLK WIRE YEL WIRE

ALT ALT FUSE BATTERY BLK WIRE BLU WIRE COMBINATION METER ASSEMBLY ECM (LEFT SIDE OF ENGINE COMPT) ENERGIZED GAUGE 1 FUSE ENGINE ROOM J/B ASSEMBLY ENGINE ROOM R/B ASSEMBLY ALT-S (LEFT FRONT FUSE FENDER APRON) FUSIBLE LINK MAIN GAUGE 2 FUSE GENERATOR ASSEMBLY GRN WIRE GRY WIRE HOT W/ INSTRUMENT PANEL J/B ASSEMBLY (LEFT SIDE OF DASH) NCA WIRE PNK WIRE RED WIRE STARTING CIRCUIT VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE BZR 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

-TW ADAPTER ASSEMBLY 1 STEREO JACK AGND ALI ALO ARI ARO ASGN AUXI AUXO BLK WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY CONSOLE) GRN WIRE GRY WIRE LEFT QUARTER SIDE SPEAKER ASSEMBLY (W/ 15 SPEAKER) LEFT REAR SPEAKER ASSEMBLY LEFT REAR SPEAKER ASSEMBLY 2 LT BLU WIRE LT GRN WIRE MI+ MO- NCA WIRE NTSC PBLT PNK WIRE RADIO RECEIVER ASSEMBLY RED WIRE REMOTE OPERATION SWITCH RIGHT QUARTER SIDE SPEAKER ASSEMBLY (W/ 15 SPEAKER) RIGHT REAR SPEAKER ASSEMBLY RIGHT REAR SPEAKER ASSEMBLY 2 SLD SLDI SLDO STEREO JACK ADAPTER ASSEMBLY 1 (MULTI-MEDIA INTERFACE ECU) UNDER CENTER FLOOR VIO WIRE W/ MULTI-MEDIA INTERFACE ECU W/O MULTI-MEDIA INTERFACE ECU WHT WIRE WHT/BLK WIRE WUI WUO YEL WIRE

1 2 3 4 5 6 7 8 R+ L+ ACAN ADIM ADPG AIR ARON BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM GRN WIRE GRY WIRE HEADPHONE TERMINAL HEATER CONTROL PANEL (RADIO RECEIVER ASSEMBLY) LEFT SET BACK DISPLAY LT BLU WIRE LT GRN WIRE MAIN BODY ECU (BEHIND LEFT SIDE OF DASH) MULTI-DISPLAY CONTROLLER MUTE NCA WIRE NTSC PBEW PNK WIRE RED WIRE RIGHT SET BACK DISPLAY SLDA SLDB SUB-ASSEMBLY (UNDER CENTER CONSOLE) SUPPLEMENTAL RESTRAINTS SYSTEM VA- VAL+ VAR+ VD VG VIO WIRE VMTR VV- 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

BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM FUSE GRN WIRE INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) P POSITION DETECTION SWITCH PARK/NEUTRAL POSITION SWITCH (ON TRANSMISSION) PNK WIRE POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) RED WIRE RELAY ENERGIZED SHIFT LOCK CONTROL ECU SUB-ASSEMBLY (UNDER CENTER CONSOLE, BESIDE SHIFT LEVER) SHIFT LOCK SOLENOID SLS+ SLS- STOP LIGHT SWITCH ASSEMBLY (ON BRAKE PEDAL BRACKET) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+ECU 2 3 STA STAR 3 16 18 17 SLP BATTERY BLK WIRE BLU WIRE BRX CHECK CONNECTOR (REMOTE ENGINE STARTER) (RIGHT SIDE OF DASH) ECM (LEFT SIDE OF ENGINE COMPT) ECU-B 1 FUSE ENGINE COMPT) ENGINE ROOM J/B ASSEMBLY ENGINE ROOM R/B ASSEMBLY ENGINE SWITCH FUSE GRN WIRE GRN/RED WIRE HOT AT ALL TIMES INSTRUMENT PANEL J/B ASSEMBLY (LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) ORG/ WIRE PARK/NEUTRAL POSITION SWITCH ASSEMBLY PNK BTX WIRE PNK NSW WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWER MANAGEMENT CONTROL ECU (LEFT END OF DASH) RED WIRE REMOTE ENGINE STARTER (RIGHT SIDE OF DASH) ST FUSE (LEFT FRONT FENDER APRON) ST RELAY STARTER ASSEMBLY TRANSAXLE TRANSMISSION CONTROL ECU ASSEMBLY (LEFT FRONT OF WHT WIRE WHT/BLK WIRE YEL WIRE

3 2 IGE BLK WIRE BLU WIRE COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPARTMENT) GAUGE 2 FUSE GRN WIRE HOT AT ALL TIMES ID CODE BOX (LEFT SIDE OF DASH) INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LIN LIN 1 POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) RED WIRE RELAY ENERGIZED SL/R SLP STEERING LOCK ACTUATOR ASSEMBLY (ON STEERING COLUMN) STR LOCK FUSE WHT/BLK WIRE YEL WIRE

27 28 29 30 -SR -SL +SR +SL ABFS AIR AIR BAG SENSOR ASSEMBLY (BELOW CENTER CONSOLE) ARON BBL+ BBL- BBL+ BCL+ BDL- BLK WIRE BLU WIRE BRN WIRE CANL PAON COMPUTER DATA LINES SYSTEM DK DK DK+ FUSE GRN WIRE ICL- INSTRUMENT PANEL J/B (LEFT SIDE GAUGE 2 FUSE INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) LEFT CURTAIN SHIELD AIR BAG ASSEMBLY (LEFT SIDE OF ROOF) LEFT DOOR SIDE AIR BAG SENSOR (BASE OF LEFT "B" PILLAR) LEFT FRONT SIDE AIR BAG SQUIB CIRCUIT (IN DRIVER'S SEAT BACK) LEFT REAR AIR BAG SENSOR (LEFT "C" PILLAR) LEFT REAR SIDE AIR BAG SQUIB CIRCUIT (UNDER LEFT REAR SEAT) LEFT SIDE AIR BAG SENSOR ASSEMBLY (LEFT "B" PILLAR) LT GRN WIRE MULTI INFORMATION DISPLAY ASSEMBLY PASSENGER AIR BAG ON/OFF INDICATOR OF DASH) P- P+ D+ D- P-AB P-AB GSW PK+ PK- PAON PK- POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) PRETENSIONER LEFT FRONT SEAT OUTER BELT ASSEMBLY (BASE OF LEFT "B" PILLAR) PRETENSIONER OUTER LEFT REAR SEAT BELT ASSEMBLY 1 (LEFT "C" PILLAR) RED WIRE RELAY ENERGIZED RL- RL+ LSP- LBE- SECOND STEP SFL- SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) SRL- VIO WIRE W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE