Lexus LS IV (2006-2012) (left front of engine) Wiring diagrams

5 4 3 2 1 VCSK SKG SKS ABS MAIN 3 FUSE ABS MTR 1 FUSE ABS MTR RELAY ABS- MAIN 1 FUSE BLK WIRE BLU WIRE BRAKE BOOSTER PUMP ASSEMBLY BRAKE FLUID LEVEL WARNING SWITCH (BRAKE MASTER GND CYLINDER RESERVOIR) BRAKE PEDAL STROKE SENSOR ASSEMBLY BRAKE STROKE SIMULATOR (LEFT REAR OF ENGINE COMPT) BRN WIRE BUZZER BZ SS RLA- RLA+ FRA- FRA+ FR+ FR- DRIVER SIDE J/B (LEFT END OF DASH) ENA COMPUTER DATA LINES SYSTEM ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 2 (RIGHT SIDE OF ENGINE COMPT) FRR+ FRR- FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START DRIVER SIDE J/B (LEFT END OF DASH) LBL LBL PFR LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (LEFT "B" PILLAR) LEFT REAR SPEED SENSOR LT GRN WIRE MTT ORG/ WIRE PNK CTY WIRE PNK RLR+ RLR- WIRE PNK WIRE PRL VBZ RED WIRE RIGHT FRONT SPEED SENSOR RL- RL+ SHORT CONNECTOR SKG SKID CONTROL BUZZER ASSEMBLY (LEFT END OF DASH) SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) VCM VCSK VIO WIRE WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE

+BM ACCELERATOR POSITION SENSOR (LEFT SIDE OF DASH) BLK WIRE BLU WIRE BRN WIRE CANN CANP CCHG COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) DRIVING SUPPORT ECU (LEFT KICK PANEL) ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FCAS FRONT CENTER MILLIMETER WAVE RADAR SENSOR (FRONT CENTER OF ENGINE COMPT) FUSE GND SGND CCS GRN WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT AT ALL TIMES STOP FUSE HOT IN ON OR START IGB LT GRN WIRE ORG/ WIRE PNK WIRE PRE-COLLISION SYSTEM CANCEL SWITCH RED WIRE SGND STP+ VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE C/OPN RELAY COMPUTER DATA LINES SYSTEM CRUISE CONTROL MAIN SWITCH DRIVER SIDE J/B (LEFT END OF DASH) ECU-IG FUSE EFI EFI MAIN EFI FUSE MAIN RELAY ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 2 (RIGHT SIDE OF ENGINE COMPT) ETCS FUSE FUSE GRN WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START HOT IN ON OR START E/G RM- J/B 5 (LEFT SIDE OF DASH) LT GRN WIRE NCA WIRE ON- +RES -SET MODE OFF PNK WIRE RED WIRE RELAY SPIRAL CABLE (IN STEERING COLUMN) STEERING PAD SWITCH W/ MODULATOR STEERING SWITCH ECU THROTTLE POSITION SENSOR (ON THROTTLE BODY) TRANSMISSIONS SYSTEM VIO WIRE W/ PADDLE SHIFT SWITCH W/O PADDLE SHIFT SWITCH WHT WIRE WHT/BLK WIRE YEL WIRE

+BM +RES ON- -SET OFF 13 8 12 STP IGSW 15 9 10 13 14 CCS CAN- CAN+ CANL CANH 28 18 CAN- CAN+ 29 20 23 28 21 22 VPA EPA VCPA 7 3 BATT MREL PNK WIRE ACCELERATOR POSITION SENSOR (LEFT SIDE OF DASH) BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE C/OPN RELAY COMPUTER DATA LINE SYSTEM CRUISE CONTROL MAIN SWITCH DRIVER SIDE J/B (LEFT END OF DASH) ECU-IG FUSE EFI EFI MAIN EFI FUSE MAIN RELAY ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 2 (RIGHT SIDE OF ENGINE COMPT) ETA M+ M- ETCS FUSE FUSE GRN WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START HOT IN ON OR START E/G RM- J/B 5 (LEFT SIDE OF DASH) NCA WIRE ORG/ WIRE PNK WIRE RED WIRE RELAY SPIRAL CABLE (IN STEERING COLUMN) TRANSMISSIONS SYSTEM VIO WIRE VTA VCTA W/ VEHICLE DYNAMICS INTEGRATED MANAGEMENT WHT WIRE WHT/BLK WIRE YEL WIRE

BAT DLC 3 (LEFT SIDE OF DASH) BLK WIRE BLU WIRE BRN WIRE CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) CG SG CANH SIL DCM (TELEMATICS TRANSCEIVER) (RIGHT END OF DASH) DIA DISPLAY, NAVIGATION MODULE DISPLAY DRIVER SIDE J/B (LEFT END OF DASH) ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) GRN WIRE HIGH/LOW BUS CIRCUIT HOT AT ALL TIMES HYBRID VEHICLE CONTROL ECU (LEFT FRONT OF ENGINE COMPT) LUGGAGE ROOM J/B OBD FUSE (LEFT SIDE OF LUGGAGE COMPT) OCCUPANT DETECTION ECU (UNDER FRONT PASSENGER'S SEAT) OPA TS TC CANL ORG/ WIRE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE RED WIRE SIL SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) STEERING CONTROL ECU (RIGHT SIDE OF DASH) SUSPENSION CONTROL ECU (RIGHT END OF DASH) TAC TACH VIO WIRE WHT WIRE WHT/BLK WIRE

A/C COMPRESSOR BLK WIRE BLU WIRE BRAKE ACCUMULATOR PUMP BRAKE FLUID LEVEL WARNING SWITCH BRN WIRE EFI FRONT MAIN CONTROL RELAY EFI MAIN 2 RELAY ENGINE CONTROL MODULE FAN FRONT WIPER DEICER HEADLIGHT CLEANER RELAY HEIGHT CONTROL COMPRESSOR MOTOR LEFT A/F H-LP LO RELAY RELAY LEFT FOG LIGHT LEFT FRONT SUSPENSION CONTROL ACTUATOR LEFT VVT RELAY NOISE FILTER (GHOST BUSTER) POWER STEERING DC/DC CONVERTER PTC HTR 2 RELAY PTC PTC HTR 3 HTR 1 RELAY RELAY R/B 5 (RIGHT FRONT OF ENGINE COMPT) RELAY RELAY ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) RIGHT FOG LIGHT SKID CONTROL ECU SKID WIPER WASHER CONTROL MOTOR MOTOR ECU TRANSMISSION CONTROL MODULE WASHER FLUID LEVEL SENSOR WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER

BLK WIRE BLK/RED WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BUZZER CAN (+) CAN CONTROLLER CAN I/F COMBINATION METER COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) EFI EKNK ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START HOT IN ON OR START ENGINE EFI ROOM FUSE J/B 1 (RIGHT REAR OF ENGINE COMPT) J/B 3 (RIGHT SIDE OF DASH) (LEFT FRONT OF ENGINE) KNOCK SENSOR (BANK 1 SENSOR 1) (LEFT SIDE OF ENGINE) KNOCK SENSOR (BANK 2 SENSOR 1) (RIGHT SIDE OF ENGINE) LED DRIVER LT GRN WIRE MALFUNCTION IND LAMP MASTER IND MPX-B-2 FUSE NCA WIRE PNK WIRE RED WIRE SPEEDO- METER STARTING/ CHARGING SYSTEM STOP FUSE FUSE TACHO- METER TEMPER- ATURE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL/BLK WIRE

BLK WIRE BLK/RED WIRE BLU WIRE BLU/YEL WIRE BRN WIRE CANISTER PRESSURE SENSOR ENGINE COOLANT TEMPERATURE SENSOR (FRONT LEFT OF ENGINE) ENGINE ROOM EX+ FUEL INJECTOR (DIRECT INJECTION 2) FUEL INJECTOR (DIRECT INJECTION 3) FUEL INJECTOR (DIRECT INJECTION 5) FUEL INJECTOR (DIRECT INJECTION 8) FUEL PRESSURE SENSOR (TOP CENTER OF ENGINE) GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT IN ON OR START P-J/B J/B 2 FUSE (RIGHT SIDE OF ENGINE COMPT) KNOCK SENSOR (BANK 1 SENSOR 2) (LEFT SIDE OF ENGINE) KNOCK SENSOR (BANK 2 SENSOR 2) (RIGHT SIDE OF ENGINE) LEAK DETECTION PUMP CANISTER PUMP MODULE (UNDER LEFT REAR OF VEHICLE) LT GRN WIRE NCA WIRE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE PURGE VSV (LEFT REAR OF ENGINE) RED WIRE RED/BLU WIRE TOP OF ENGINE) VENT VALVE VIO WIRE VVT SENSOR (BANK 2 EXHAUST SIDE) (RIGHT SIDE OF ENGINE) WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE

+BM 8 9 10 11 12 13 14 15 16 17 PNK WIRE BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BR- BRN WIRE CRANKSHAFT POSITION SENSOR (RIGHT REAR OF ENGINE) ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) EVGR EX+ FP- FPD + FPF FUEL INJECTOR (DIRECT INJECTION 1) FUEL INJECTOR (DIRECT INJECTION 4) FUEL INJECTOR (DIRECT INJECTION 6) FUEL INJECTOR (DIRECT INJECTION 7) GRN WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES ETCS FUSE HOT IN ON OR START ENGINE ECU- IG ROOM J/B 2 FUSE (RIGHT SIDE OF ENGINE COMPT) LT GRN WIRE MASS AIR FLOW METER (BANK 1) (TOP LEFT SIDE OF ENGINE) MASS AIR FLOW METER (BANK 2) (TOP RIGHT SIDE OF ENGINE) MPMP NCA WIRE NE+ PNK WIRE PNK/BLU WIRE PPMP RED WIRE RED/BLU WIRE THA THAR TOP OF ENGINE) VGR VIO WIRE VPMP VVT SENSOR (BANK 1 EXHAUST SIDE) (LEFT SIDE OF ENGINE) WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE

15 16 17 18 PNK WIRE BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CAMSHAFT CONTROL MOTOR (BANK 2) (RIGHT FRONT OF ENGINE) CAMSHAFT POSITION SENSOR (FRONT OF RIGHT CYLINDER HEAD) CAMSHAFT TIMING OIL CONTROL VALVE (BANK 1) (FRONT OF LEFT CYLINDER HEAD) ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FPD + FUEL INJECTOR (PORT INJECTION 1) FUEL INJECTOR (PORT INJECTION 3) FUEL INJECTOR (PORT INJECTION 5) FUEL INJECTOR (PORT INJECTION 7) GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE LT GRN WIRE M- M+ 80 60 40 20 NCA WIRE PNK ASM- ASM+ WIRE PNK WIRE PNK/BLU WIRE RED WIRE RED/BLU WIRE RLO ALT SGND STARTING/ CHARGING SYSTEM THROTTLE POSITION SENSOR (ON THROTTLE BODY) VCTA ETA VIO WIRE VTD VTM VTP VTS VVL+ VVR+ VVT SENSOR (BANK 1 INTAKE SIDE) (LEFT SIDE OF ENGINE) WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE