Lexus LS III facelift (2003-2006) (in engine harness, under ecu box) Wiring diagrams

2 1 3 4 5 GND VZ PT MOPEN MSHUT 2 1 4 5 3 GND VZ MOPEN MSHUT PT 2 3 1 SHUT 5 4 1 2 3 FRS REC VZ GND PT 6 5 2 PNK WIRE A/C AMBIENT TEMPERATURE SENSOR (BEHIND LEFT SIDE OF BUMPER FASCIA) A/C CONTROL ASSEMBLY A/C EVAPORATOR TEMPERATURE SENSOR A/C IG FUSE A/C ROOM TEMPERATURE SENSOR (BEHIND LEFT CENTER OF DASH) AIR INLET CONTROL SERVO MOTOR (RIGHT SIDE OF DASH) AIR MIX CONTROL SERVO MOTOR (DRIVER SIDE) (CENTER OF DASH) AIR VENT MODE CONTROL SERVO MOTOR (DRIVER SIDE) (CENTER OF DASH) AMPB AOPB BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/WHT WIRE BRN/YEL WIRE C-GND COMPUTER DATA LINES SYSTEM COOL AIR BYPASS SERVO MOTOR (DRIVER SIDE) (LEFT SIDE OF DASH) COOL AIR BYPASS SERVO MOTOR (FRONT PASSENGER SIDE) (RIGHT SIDE OF DASH) COOLING FAN ECU (ON FRONT CENTER OF ENGINE COMPT, ON RADIATOR SUPPORT) D-SIG DUCT SENSOR (DRIVER'S SIDE) (BEHIND UPPER LEFT SIDE OF DASH) DUCT SENSOR (FRONT PASSENGER'S SIDE) (BEHIND UPPER RIGHT SIDE OF DASH) ED (AT TOP LEFT OF DASH) ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) ENGINE COOLANT TEMPERATURE SENSOR (ON FRONT CENTER OF ENGINE) ENGINE ROOM R/B 1 FR IG FUSE (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) EXHAUST GAS SENSOR (ON RIGHT SIDE OF ENGINE, ON EXHAUST SYSTEM) FAN FUSE FAN RELAY FUSIBLE LINK BLOCK (ON RIGHT REAR OF ENGINE COMPT) GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ON OR START JUNCTION CONNECTOR 3 (LEFT FRONT OF ENGINE COMPT) JUNCTION CONNECTOR 7 (BELOW ENGINE ROOM J/B 1, ENGINE ROOM R/B 1) LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE LT GRN/WHT WIRE MAGNETIC FIELD SENSOR (W/ COMPASS) (BEHIND CENTER OF DASH) NCA WIRE NOX ORG/ WIRE PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RFC SG-7 AIF AIR SHORT CONNECTOR TAM TFACEPA TFACEDR TR NOX TPBDR TPBPA AODB VMID WATER VALVE SERVO MOTOR (CENTER OF DASH) WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WVIG WVO ABODR ABSDR WVS ABOPA ABSPA AMDB YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

BLK WIRE BLOWER MOTOR BRAKE FLUID LEVEL WARNING SWITCH BRAKE PEDAL LOAD SENSING SWITCH BRN WIRE COOLING FAN ECU EA (AT RIGHT RADIATOR SIDE SUPPORT) EB (UNDER FUSIBLE LINK BLOCK) EC (AT LEFT RADIATOR SIDE SUPPORT) ED (AT TOP LEFT OF DASH) EFI MAIN RELAY ENGINE CONTROL MODULE ENGINE HOOD COURTESY SWITCH FAN RELAY FRONT HEIGHT CONTROL VALVE FRONT WIPER MOTOR HEADLIGHT CLEANER CONTROL RELAY HEIGHT CONTROL COMPRESSOR HEIGHT CONTROL EXHAUST VALVE J/C 3 (LEFT FRONT OF ENGINE COMPT) J/C 7 (BELOW ENGINE ROOM 1 J/B, ENGINE ROOM 1 R/B) LEFT FRONT FOG LIGHT LEFT FRONT PARKING LIGHT LEFT FRONT SIDE MARKER LIGHT LEFT FRONT SUSPENSION CONTROL ACTUATOR LEFT FRONT TURN SIGNAL LIGHT LEFT HEADLIGHT CONTROL ECU PARK/ NEUTRAL POSITION SWITCH EXHAUST GAS SENSOR RELAY RIGHT FRONT FOG LIGHT RIGHT FRONT PARKING LIGHT RIGHT FRONT SIDE MARKER LIGHT RIGHT FRONT SUSPENSION CONTROL ACTUATOR RIGHT FRONT TURN SIGNAL LIGHT RIGHT HEADLIGHT (HIGH BEAM) RIGHT HEADLIGHT CONTROL ECU SKID CONTROL ECU W/ ACTUATOR WASHER LEVEL SENSOR WASHER MOTOR LEFT HEADLIGHT (HIGH BEAM) WHT WIRE WHT/BLK WIRE

AIR BAG SENSOR ASSEMBLY BLK WIRE BLK/RED WIRE BRN WIRE CAMSHAFT POSITION SENSOR SHIELD COMBINATION SWITCH CRANKSHAFT POSITION SENSOR SHIELD D-ACC RELAY RELAY DEFOG RELAY FRONT CONTROLLER DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU EE (ON RIGHT CYLINDER HEAD) EF (ON LEFT CYLINDER HEAD) ENGINE COMPT) ENGINE CONTROL MODULE ENGINE CONTROL MODULE LASER SENSOR ENGINE OIL LEVEL SENSOR FUEL LID OPENER SWITCH OUTER MIRROR SWITCH HEATED OXYGEN SENSOR (BANK 1 SENSOR 1) SHIELD HEATED OXYGEN SENSOR (BANK 1 SENSOR 2) SHIELD HEATED OXYGEN SENSOR (BANK 2 SENSOR 1) SHIELD HEATED OXYGEN SENSOR (BANK 2 SENSOR 2) SHIELD IGNITION COIL, IGNITER 1 IGNITION COIL, IGNITER 2 IGNITION COIL, IGNITER 3 IGNITION COIL, IGNITER 4 IGNITION COIL, IGNITER 5 IGNITION COIL, IGNITER 6 IGNITION COIL, IGNITER 7 IGNITION COIL, IGNITER 8 IJ (AT RIGHT DASH BRACE) J/C 12, 13 (BEHIND UPPER CENTER OF DASH) J/C 3, 4 (LEFT FRONT OF J/C 33, 34 (LEFT FRONT OF ENGINE COMPT) J/C 8 (BEHIND LEFT END OF DASH) J/C 9 (BEHIND LEFT END OF DASH) JUNCTION CONNECTOR KEY INTERLOCK SOLENOID UNLOCK WARNING SWITCH KNOCK SENSORS SHIELD LEFT VVT SENSOR SHIELD LUGGAGE COMPARTMENT DOOR OPENER SWITCH MULTI-DISPLAY POWER TILT, POWER TELESCOPIC ECU RADIO, PLAYER RHEOSTAT RIGHT VVT SENSOR SHIELD SGND SHIELDED SHIELDED SHIELDED STEERING LOCK ECU IG (AT LEFT SIDE OF DASH) IH (AT RIGHT SIDE OF SHIFT LEVER) STEERING SENSOR TELEPHONE TRANSCEIVER, SPEAKER RELAY DISTANCE CONTROL ECU TELESCOPIC MOTOR, POSITION SENSOR SHIELD TILT MOTOR, POSITION SENSOR SHIELD TRANSMISSION CONTROL SWITCH DATA LINK CONNECTOR 3 UN- SLN- GND CG UNLOCK WARNING SWITCH GATEWAY ECU W/ NAVIGATION W/ SMART KEY SYSTEM W/O SMART KEY SYSTEM W/ SMART KEY W/O SMART KEY WHT WIRE WHT/BLK WIRE

BATT FUSE BATTERY BATTERY GROUND BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU/ORG WIRE BLU/YEL WIRE BRN WIRE EC (AT LEFT RADIATOR SIDE SUPPORT) ENGINE COMP) ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) STA ENGINE ROOM 1 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) STA FUSE FUSIBLE LINK BLOCK (ON RIGHT REAR OF ENGINE COMPT) GRN/BLK WIRE IGNITION SWITCH JUNCTION CONNECTOR 33, 34 (LEFT FRONT OF JUNCTION CONNECTOR 7 (BELOW ENGINE ROOM 1 J/B, ENGINE ROOM 1 R/B) LOCK OFF NCA WIRE PARK/NEUTRAL POSITION SWITCH (ON RIGHT SIDE OF TRANSMISSION) PASSENGER SIDE J/B FUSE (AT RIGHT KICK PANEL) RED WIRE RUN WIRE ST FUSE STAR STARTER STARTER RELAY WHT/BLK WIRE

BLK WIRE BLK/ORG WIRE BLK/WHT WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE EC (LEFT RADIATOR SIDE SUPPORT) EFI 2 FUSE EKNK ENGINE CONTROL MODULE (ECM) (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) ENGINE ROOM R/B 1 (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) EOIL FUSIBLE LINK BLOCK (ON RIGHT REAR OF ENGINE COMPT) GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IGN FUSE FR IG FUSE IGNITION SWITCH LEFT KNOCK SENSOR (ON LEFT SIDE OF ENGINE) LOCK LT GRN WIRE MOL NT- OIL OIL PRESSURE SWITCH (LOWER LEFT FRONT OF ENGINE) P/N RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT KNOCK SENSOR (ON RIGHT SIDE OF ENGINE) SLT- SLU+ ST FUSE STA FUSE STAR STARTER RELAY TURBINE SPEED SENSOR (IN TRANSMISSION) VEHICLE SPEED SENSOR (ON TRANSMISSION) WHT WIRE YEL WIRE YEL/BLK WIRE