Lexus RX III (2008-2012) wht/blk Wiring diagrams

1 2 3 5 6 TSL TSR CLTE CLTS CLTB 17 3 HZSW 19 6 28 29 30 20 21 22 13 14 3 BCTY RCTY 4 2 FRCY FLCY AIR CONDITIONING SYSTEM AUTOMATIC LIGHT CONTROL SENSOR (TOP RIGHT SIDE OF DASH) BLK WIRE BLU WIRE BRN WIRE CENTER STOP LIGHT ASSEMBLY COMPUTER DATA LINES SYSTEM D/L ALTB FUSE DCDC R/B ASSEMBLY FUSE (ON LEFT SIDE OF ENGINE COMPT) DEF DEF ECU-ACC FUSE ECU-IGI 1 FUSE ENGINE ROOM GRN WIRE GRY WIRE HEAD TAIL CLTB CLTS CLTE CANL CANH HAZ HMSL HOT AT ALL TIMES HOT IN HOT IN ON OR ACC INSTRUMENT PANEL J/B (LEFT SIDE OF DASH) 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 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 STP+ TAIL TAIL FUSE TAIL RELAY TRN+ TRNI TURN VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

10 9 8 7 6 5 4 3 2 1 TRNR AUTO BLK WIRE BLU WIRE BRN WIRE CANADA CTRS DRL OFF GRN WIRE GRY WIRE HAZARD WARNING SIGNAL SWITCH ASSEMBLY HEAD HEADLIGHT DIMMER SWITCH ASSEMBLY LEFT REAR LIGHT ASSEMBLY TAIL LH OFF LIGHT CONTROL LR CTLA CTLS CTLB LT BLU WIRE OFF ORG/ WIRE PNK WIRE RED WIRE RIGHT REAR LIGHT ASSEMBLY TAIL SWITCH TAIL TOWING CONVERTER (RIGHT SIDE OF LUGGAGE COMPT) TRAILER HITCH TTLA TTLS TTRS TURN SWITCH USA 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 BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CRA+ DRIVING SUPPORT ECU ASSEMBLY ENGINE ROOM R/B ASSEMBLY (ON LEFT SIDE OF ENGINE COMPT) 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) LED TYPE HID, HALOGEN TYPE LEFT HEADLIGHT ASSEMBLY LT BLU WIRE LT GRN WIRE MARKER MARKER SIDE PNK WIRE POWER MANAGEMENT CONTROL ECU (LEFT END OF DASH) RED WIRE RIGHT HEADLIGHT ASSEMBLY RIGHT OUTER MIRROR CONTROL ECU ASSEMBLY (IN RIGHT FRONT DOOR) RIGHT OUTER REAR VIEW MIRROR ASSEMBLY SHIFT LOCK CONTROL ECU SUB-ASSEMBLY SIDE 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

1 2 3 4 5 6 7 8 9 10 11 12 13 GRF GSN GCS MRF MSN MCS GRFG GSNG GCSG ASSEMBLY (LEFT SIDE OF LUGGAGE COMPT) BLK WIRE BLU WIRE BRN WIRE CBI CEI CLK- MTH- HTM- CLK- MTH- HTM- RCSG RSNG RRFG NODD IGCT REQ+ ENGINE ROOM FRONT MOTOR GENERATOR 1 (LEFT FRONT OF ENGINE COMPT) FRONT MOTOR GENERATOR 2 (LEFT FRONT OF ENGINE COMPT) GCS GCSG GMT GMTG GRF GRFG GRN WIRE GRN/RED WIRE GSN GSNG HOT AT ALL TIMES DCDC J/B ASSEMBLY FUSE (LEFT SIDE OF ENGINE COMPT) HOT AT ALL TIMES FUSE BOX (REAR OF LUGGAGE COMPT) DCDC-S FUSE HSDN HV BATTERY JUNCTION BLOCK ILK ILKI INTERLOCK SWITCH INVERTER ASSEMBLY W/ CONVERTER (LEFT SIDE OF ENGINE COMPT) LEFT "C" PILLAR) LT BLU WIRE LT GRN WIRE MCS MCSG MMT MMTG MRF MRFG MRFG MSNG MCSG MSN MSNG NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/BLU WIRE ORG/GRY WIRE ORG/LT BLU WIRE ORG/LT GRN WIRE ORG/WHT WIRE PNK WIRE R-U R-V R-W RCS RCS RSN RRF RCSG REAR TRACTION W/ TRANSAXLE MOTOR GENERATOR (AT REAR AXLE) RED WIRE RED/BLK WIRE REQ+ RMT RMTG RRF RRFG RSN RSNG VIO WIRE VLO ILKO WHT WIRE WHT/BLK WIRE YEL WIRE

AMD BLK WIRE BLU WIRE BRN WIRE CBI CEI CLK+ COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B 2 (LEFT REAR OF ENGINE COMPT) GMT GMTG GRN WIRE GRY WIRE HSDN HTM- IGCT 2 FUSE IGCT 3 FUSE IGCT MAIN RELAY ILK INVERTER ASSEMBLY W/ CONVERTER (LEFT SIDE OF ENGINE COMPT) LT GRN WIRE MMT MMTG MTH+ NCA WIRE NODD ORG/ WIRE PCU FUSE PNK WIRE POWER MANAGEMENT CONTROL ECU (LEFT SIDE OF DASH) R-U R-V R-W RED WIRE REQ+ RMT RMTG SFTD SFTU VIO WIRE VLO WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE ECM (RIGHT FRONT OF ENGINE COMPT) EFI ENGINE COOLANT TEMPERATURE SENSOR (TOP REAR OF ENGINE) GRN WIRE GRN/RED WIRE INTAKE MASS AIR FLOW METER (LEFT REAR OF ENGINE COMPT) KNOCK CONTROL SENSOR (BANK 1) (TOP OF ENGINE, UNDER INTAKE MANIFOLD) LT GRN WIRE M- M+ +BM NCA WIRE ORG/ WIRE OXYGEN SENSOR (BANK 1 SENSOR 2) (IN EXHAUST) PNK WIRE PURGE VSV (LEFT REAR OF ENGINE) RED WIRE THE TOP OF ENGINE) VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

13 23 24 21 PNK CANH CANL CHK WIRE 15 14 PNK WIRE ACCELERATOR POSITION SENSOR (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 PARK/NEUTRAL POSITION SWITCH (ON TRANSMISSION) PCU FUSE PNK 15 56 WIRE PNK WIRE RED WIRE TRANSMISSION CONTROL SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

27 28 17 39 STP- ASIG 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 RIGHT BATTERY COOLING BLOWER MOTOR (NEAR HV BATTERY) SETU SFTD SIF- SMRB SMRG SPDI THB VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BATTERY VOLTAGE SENSOR (UNDER REAR SEAT, ON HYBRID VEHICLE BATTERY) BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BTH+ BUSBER MODULE CENTER HYBRID VEHICLE BATTERY CBP CEP CURRENT SENSOR DOOK FUSE GBBO GIB GRN WIRE GRY WIRE HV BATTERY HV BATTERY JUNCTION BLOCK ASSEMBLY HYBRID VEHICLE BATTERY IGCT LEFT "C" PILLAR) LH BUSBER MODULE HYBRID VEHICLE BATTERY LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE ORG/BLK WIRE ORG/WHT WIRE PNK WIRE RED WIRE RH BUSBER MODULE SERVICE PLUG VIB VIO WIRE VMO WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CRANK POSITION SENSOR (LEFT FRONT OF ENGINE) EFI VACUUM SENSOR (RIGHT FRONT OF ENGINE) GRN WIRE IGF KNOCK CONTROL SENSOR (BANK 2) (TOP OF ENGINE, UNDER INTAKE MANIFOLD) LT GRN WIRE NCA WIRE ORG/ WIRE PIM PNK 18 19 WIRE PNK WIRE RED WIRE THROTTLE W/ MOTOR BODY ASSEMBLY (RIGHT REAR OF ENGINE) TOP OF ENGINE) VVL+ VVR+ VVT SENSOR (BANK 1 INTAKE SIDE) (FRONT OF RIGHT CYLINDER BANK) VVT SENSOR (BANK 2 INTAKE SIDE) (FRONT OF LEFT CYLINDER BANK) WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE