Lexus LS III facelift (2003-2006) hot in on or start Wiring diagrams

16, 17 (BEHIND UPPER CENTER OF DASH) 3 2 1 +B SI GND 6 16 5 15 TXS+ TXS- TX+ TX- A/C CONTROL ASSEMBLY A/C FUSE A/C PRESSURE SENSOR (ON LEFT FRONT OF ENGINE COMPT) A/C ROOM TEMPERATURE SWITCH (DRIVER'S SIDE) A/C ROOM TEMPERATURE SWITCH (FRONT PASSENGER'S SIDE) A/C SOLAR SENSOR (FRONT) (BEHIND UPPER CENTER OF DASH) COMPRESSOR ASSEMBLY A/C SOLAR SENSOR (REAR) (IF EQUIPPED) (NEAR CENTER OF REAR BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER MOTOR (BEHIND LOWER RIGHT SIDE OF DASH) BLU WIRE BLU/YEL WIRE CLOCK (W/O NAVIGATION) INSTRUMENT PANEL REGISTER COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DGS TSRR DOME FUSE DOWN DRIVER SIDE J/B DUAL DUIND+ DRGND PAGND DUIND- EB (UNDER FUSIBLE LINK BLOCK) FUSE FUSIBLE LINK BLOCK (ON RIGHT REAR OF ENGINE COMPT) HEATER FUSE GATEWAY ECU (BEHIND LEFT END OF DASH) GAUGE FUSE (AT LEFT KICK PANEL) GND TC MPX+ MPX- GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRY WIRE GRY/BLK WIRE GTX+ GTX- HEATER CONTROL SWITCH (CENTER CLUSTER INTEGRATION PANEL) (W/O NAVIGATION) HEATER CONTROL SWITCH (MULTI-DISPLAY) (W/ NAVIGATION) HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START II (AT RIGHT SIDE OF SHIFT LEVER) IND JUNCTION CONNECTOR JUNCTION CONNECTOR 14, 15 (BEHIND UPPER CENTER OF DASH) LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE MPX- BLW SOL+ SOL- RDFGR IG MPX-IG FUSE MULTI-DISPLAY ORG/ WIRE P-ACC FUSE P-IG FUSE P/SB PASSENGER SIDE J/B PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PRS TAMOUT PADN PAUP DRDN DRUP RADIO, PLAYER RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SPEAKER SHELF, AT BASE OF REAR WINDOW) SPEEDOMETER COMBINATION METER 4 5 1 9 3 8 IG+ TAMO TSDR TSPA +B TSL TSR VIO WIRE VIO/RED WIRE VIO/WHT WIRE W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

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

+B MPX- TSRR 1 2 GND 1 3 8 GND MPX+ MPX- 1 9 3 21 4 30 GND IG 13 11 16 17 18 19 20 5 MPX- RMGV SMOK AUTO RHR RFR FRS SG 2 1 GND IG 6 5 4 14 HIC MPX-B MPX-IG P-GND A/C AMPLIFIER (IN LUGGAGE COMPT) A/C CONTROL ASSEMBLY AIR PURIFIER LIGHT AUDIO, REAR A/C CONTROL SWITCH B+ GND BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM COOL BOX ILLUMINATION 1 3 2 DOME FUSE DRIVER SIDE J/B A/C FUSE (AT LEFT KICK PANEL) FUSE FUSIBLE LINK BLOCK (ON RIGHT REAR OF ENGINE COMPT) GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE HEATER CONTROL SWITCH (CENTER CLUSTER INTEGRATION PANEL) (W/O NAVIGATION) HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IK (AT RIGHT SIDE OF DASH) JUNCTION CONNECTOR JUNCTION CONNECTOR 10 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 14, 15 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 16, 17 (BEHIND LT BLU WIRE LT GRN WIRE LT GRN/RED WIRE LUG J/B FUSE LUGGAGE ROOM J/B (ON LEFT SIDE OF LUGGAGE COMPT) LUGGAGE ROOM J/B ECU MPX-IG FUSE MULTI-DISPLAY ORG/ WIRE P-ACC FUSE P-IG FUSE PASSENGER SIDE J/B PNK WIRE REAR BLOWER RESISTOR REAR DAMPER SERVO MOTOR (REAR CENTER OF LUGGAGE COMP) REAR MAGNETIC VALVE REAR OF LUGGAGE COMPT) RED WIRE RED/BLU WIRE RHR RR A/C FUSE RR ECU-B FUSE SMOKE SENSOR (CENTER REAR OF VEHICLE) TX- TX+ VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE

A/C CONTROL ASSEMBLY A/C FUSE SIDE J/B (AT LEFT KICK PANEL) BLK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE COOLING FAN ECU (ON FRONT CENTER OF ENGINE COMPT, ON RADIATOR SUPPORT) 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 1 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FAN FUSE FAN RELAY FR IG FUSE FUSIBLE LINK BLOCK (ON RIGHT REAR OF ENGINE COMPT) GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IG +B GND IK (AT RIGHT SIDE OF DASH) JUNCTION CONNECTOR 1 (LEFT FRONT OF ENGINE COMPT) JUNCTION CONNECTOR 14, 15 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 3 (LEFT FRONT OF ENGINE COMPT) JUNCTION CONNECTOR 7 (BELOW ENGINE ROOM 1 J/B, ENGINE ROOM 1 R/B) LT GRN WIRE LT GRN/RED WIRE P-ACC FUSE P-IG FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) RED WIRE RED/BLU WIRE RFC SHORT CONNECTOR WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

+B STI- MREL IGSW CCHG CANL CANH SPD LGND 13 12 STPI STPO 2 4 5 6 8 13 17 20 24 25 22 29 EC BATT 4 3 9 19 26 27 30 31 32 33 34 35 STP TC ACCEL POSITION SENSOR (BEHIND LEFT CENTER OF DASH) BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE CANH CANL SGND COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CRUISE DISTANCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) DRIVER SIDE J/B STOP FUSE (AT LEFT KICK PANEL) EC (AT LEFT RADIATOR SIDE SUPPORT) ETCS FUSE EFI 1 FUSE FR IG FUSE GND IGB GRN/BLK WIRE GRN/ORG WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IGB IGN FUSE J/C J/C 1, 2 (LEFT FRONT OF ENGINE COMPT) J/C 35 (LEFT SIDE OF DASH) LASER RADAR SENSOR (BEHIND RIGHT SIDE OF FRONT BUMPER FASCIA) LGND LRDD LRDD LRRD LRRD LT GRN WIRE MODE R/N CRUISE CONTROL SWITCH OBD FUSE ORG/ WIRE PNK/BLK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/YEL WIRE RES+ SET/ COAST SFTD SFTU CCS SGND SHORT CONNECTOR (LEFT FRONT OF ENGINE COMPT) STOPLIGHT SWITCH (ABOVE BRAKE PEDAL, ON BRACKET) TRANSMISSIONS SYSTEM VIO WIRE VIO/WHT WIRE VIO/YEL WIRE VPA EPA VCPA WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL GRN/ WIRE YEL/BLK WIRE

BLK WIRE BLK/WHT WIRE BLU/ORG WIRE COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (AT LEFT KICK PANEL) ENGINE ROOM 1 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FR FOG FUSE ENGINE ROOM 2 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FHHI HORH HORL FHOR SIDR SIDL HLHR FMIG FRONT CONTROLLER FUSE FWAS CRAR CRAL FTAIL FRWA GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE H-LP HI FUSE HEADLIGHTS SYSTEM HLHL GND WLVL HORN FUSE HORNS SYSTEM HOT AT ALL TIMES HOT IN ON OR START IG (AT LEFT SIDE OF DASH) MPX-IG FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE TAIL FUSE VIO WIRE VIO/GRN WIRE WASHER FUSE WHT/BLK WIRE WIPER/WASHER SYSTEM

1 10 2 13 4 IG BATT 10 5 TX- TX+ 16 6 15 5 TXS- TXS+ TX- TX+ 2 4 MPX+ MPX- 21 9 8 20 22 10 MTX- MTX+ ATX+ ATX- UTX- UTX+ 3 2 CPU 31 14 30 MPX 8 3 MPX- MPX+ 9 10 TXM+ TXM- A/C CONTROL ASSEMBLY AIR BAG AIR BAG SENSOR ASSEMBLY (FRONT OF CENTER CONSOLE) AUDIO, REAR A/C CONTROL SWITCH (W/ REAR POWER SEAT) BLK WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE CENTER CLUSTER INTEGRATION PANEL (W/O NAVIGATION SYSTEM) CG GND GTX+ GTX- COMBINATION METER D-ACC FUSE DRIVER SIDE J/B (AT LEFT KICK PANEL) FRONT PASSENGER DOOR ECU (INSIDE RIGHT FRONT DOOR) FUSE GATEWAY ECU (BEHIND LEFT END OF DASH) GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IH (AT RIGHT SIDE OF SHIFT LEVER) J/C 10, 11 (BEHIND UPPER CENTER OF DASH) J/C 12, 13 (BEHIND UPPER CENTER OF DASH) LT GRN WIRE MARK LEVINSON EXCEPT MARK LEVINSON MOON ROOF CONTROL ECU (IF EQUIPPED) (AT FRONT OF ROOF OPENING) MPX MPX RIGHT REAR SEAT ECU (IF EQUIPPED) (BEHIND RIGHT SIDE OF REAR SEAT BACK) MPX-IG FUSE MULTI-DISPLAY NAVIGATION ECU (IF EQUIPPED) (ON LOWER RIGHT SIDE OF LUGGAGE COMPARTMENT) ORG/ WIRE OVERHEAD J/B (AT FRONT OF ROOF OPENING) PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B ECU (AT RIGHT KICK PANEL) PNK PNK WIRE PNK WIRE PNK/BLU WIRE RADIO, PLAYER RAIN SENSOR (IF EQUIPPED) (NEAR TOP CENTER OF WINDSHIELD) RED WIRE RED/BLU WIRE RIGHT REAR DOOR ECU (INSIDE RIGHT REAR DOOR) SIL STEREO COMPONENT AMPLIFIER (ON RIGHT SIDE OF LUGGAGE COMPARTMENT, BEHIND TRIM) STEREO COMPONENT TUNER (ON LOWER RIGHT SIDE OF LUGGAGE COMPARTMENT) TELEPHONE TRANSCEIVER, SPEAKER RELAY (ON LEFT SIDE OF LUGGAGE COMPARTMENT) TX+ MTX+ TX- MTX- TXD- RTX- TXD+ RTX+ VIO WIRE VIO/GRN WIRE W/ MAYDAY SYSTEM W/ NAVIGATION SYSTEM WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 LCM- LPSW TKUL LCTY AIR CONDITIONING SYSTEM BKUP BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BM (AT LEFT REAR QUARTERPANEL) BRN WIRE BUBS RMGV DRIVER SIDE J/B (AT LEFT KICK PANEL) FSSS FSMS FSSV SMOK AUTO RHR RFR FRS RSC LGCY FUEL OPN FUSE FUSE FUSIBLE LINK BLOCK (ON RIGHT REAR OF ENGINE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IG RSS INSTRUMENT CLUSTER SYSTEM JC-23 L-O/C(P) FUEL OPN(P) FUEL OPN(O) LCLS LOPN LCM+ LGLP LT BLU WIRE LT GRN WIRE LUG J/B FUSE LUGGAGE ROOM J/B (ON LEFT SIDE OF LUGGAGE COMPT) LUGGAGE ROOM J/B ECU MPX MPX+ MPX FSMV SG FSME FSSE BDCY MPX-IG FUSE MPX-IG MPX-B HIC ORG/ WIRE P-GND PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK WIRE POWER DISTRIBUTION SYSTEM POWER TOPS SYSTEM INTERIOR LIGHTS SYSTEM POWER WINDOWS SYSTEM RED WIRE TRUNK, TAILGATE, FUEL DOORS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM DOOR LOCKS SYSTEM VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 UL PNK WIRE 1 2 4 5 6 7 14 15 16 20 21 23 24 A- A+ 1 2 7 20 A- A+ LSW CPSE 22 8 27 19 PWS ML DLE MUL BLK WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BRN WIRE CAM POS CAM POS LOCK POS SW COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM CPSE KEYE POLE HALF CTY D DOOR FUSE DOOR CLOSER MOTOR LOCK MOTOR DRIVER SIDE J/B (AT LEFT KICK PANEL) MPX-IG FUSE FRONT DOOR) FRONT PASSENGER DOOR ECU (INSIDE RIGHT FULL FULL LATCH SW FUSE GND CPUB SIG BDR GRN WIRE GRN/BLK WIRE GRN/RED WIRE HALF LATCH SW HOT AT ALL TIMES HOT IN ON OR START LH RR DOOR FUSE LSW LT BLU WIRE ORG/ WIRE P DOOR FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PAWL SW PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RH RR DOOR FUSE RIGHT FRONT DOOR COURTESY SWITCH (AT RIGHT "B" PILLAR) RIGHT FRONT DOOR LOCK ACTUATOR ASSEMBLY RIGHT FRONT DOOR LOCK CONTROL SWITCH RIGHT FRONT DOOR W/ MOTOR LOCK ASSEMBLY (W/ DOOR CLOSER) VIO WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE WLSW YEL WIRE YEL/BLK WIRE

1 2 3 4 UL PNK WIRE 1 2 4 5 6 7 14 15 16 20 21 23 24 A- A+ 1 2 7 20 A- A+ LSW CPSE 1 4 5 6 10 17 16 26 23 21 14 9 11 12 22 13 GND CPUB SIG BDR CLGI 22 8 27 19 PWS ML DLE MUL BLK WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BRN WIRE CAM POS CAM POS LOCK POS SW COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM CPSE KEYE POLE HALF CTY SEL TRG+ SENS OSCB CLGO OSCE TRG- D DOOR FUSE DOOR CLOSER MOTOR LOCK MOTOR DRIVER SIDE J/B (AT LEFT KICK PANEL) MPX-IG FUSE FRONT DOOR) 1 2 3 4 5 6 7 10 +B CLG SENS SGT FRONT PASSENGER DOOR ECU (INSIDE RIGHT FULL FULL LATCH SW PAWL SW FUSE GND SEL GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HALF LATCH SW HOT AT ALL TIMES HOT IN ON OR START LH RR DOOR FUSE LSW LT BLU WIRE ORG/ WIRE P DOOR FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK WIRE PNK/BLK WIRE PNK/BLU WIRE PNK/GRN WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RH RR DOOR FUSE RIGHT FRONT DOOR COURTESY SWITCH (AT RIGHT "B" PILLAR) RIGHT FRONT DOOR LOCK ACTUATOR ASSEMBLY RIGHT FRONT DOOR LOCK CONTROL SWITCH RIGHT FRONT DOOR OSCILLATOR RIGHT FRONT DOOR OUTSIDE HANDLE RIGHT FRONT DOOR W/ MOTOR LOCK ASSEMBLY (W/ DOOR CLOSER) SGT TRG+ VIO WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE WLSW YEL WIRE YEL/BLK WIRE