Lexus LS III facelift (2003-2006) gry/blk Wiring diagrams

3 2 1 BAT ESS IG 5 4 3 2 1 IG ABS IG FUSE ABS IND. BLK WIRE BLK/RED WIRE BLU WIRE BLU/YEL WIRE BRAKE IND BRN WIRE BUZZER CANH CANL GND COMBINATION METER COMPUTER DATA LINES SYSTEM DOME FUSE (AT RIGHT KICK PANEL) DRIVER SIDE J/B DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) STPI ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) ENGINE ROOM 1 R/B FR-IG (ON LEFT FRONT OF FUSE ENGINE COMPT, BEHIND HEADLIGHT) FUSE GAUGE FUSE GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE HOT AT ALL TIMES IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) JUNCTION CONNECTOR 1, 2 (LEFT FRONT OF ENGINE COMPT) JUNCTION CONNECTOR 12, 13 JUNCTION CONNECTOR 16, 17 (BEHIND UPPER CENTER OF DASH) MULTI-DISPLAY ORG/ WIRE PASSENGER SIDE J/B RED WIRE SLIP IND SPEEDOMETER STEERING SENSOR (INSIDE TOP OF STEERING COLUMN) STOP FUSE STOPLIGHT SWITCH (ABOVE BRAKE PEDAL, ON BRACKET) STPA TRAC OFF IND VSC WARNING BUZZER (BEHIND LOWER LEFT SIDE OF DASH) WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YAW RATE SENSOR (BELOW REAR OF CENTER CONSOLE) YEL WIRE

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

+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

+BM 1 2 M+ M- 2 7 SR BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE IND DOME FUSE DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B GAUGE FUSE (AT LEFT KICK PANEL) EE (ON RIGHT CYLINDER HEAD) EF (ON LEFT CYLINDER HEAD) ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) EOIL OIL SLT- SLT+ FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/YEL WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ON OR START IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) J/C 10 (BEHIND UPPER CENTER OF DASH) J/C 12,13 (BEHIND UPPER CENTER OF DASH) J/C 13 (BEHIND UPPER CENTER OF DASH) J/C 16, 17 (BEHIND UPPER CENTER OF DASH) J/C 3, 4 (LEFT FRONT OF ENGINE COMPT) MULTI-DISPLAY PASSENGER SIDE J/B PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK/BLK WIRE RED WIRE RED/WHT WIRE RED/YEL WIRE SHIELD SHIELD 4 5 6 28 29 22 23 SLU- SLU+ SPEEDOMETER THROTTLE POSITION SENSOR, MOTOR (ON THROTTLE BODY) TRANSMISSIONS SYSTEM VEHICLE SPEED SENSOR (ON TRANSMISSION) VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

2 7 SR BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE IND DOME FUSE DRIVER SIDE J/B (AT LEFT KICK PANEL) EE (ON RIGHT CYLINDER HEAD) EF (ON LEFT CYLINDER HEAD) ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) EOIL OIL SLT- SLT+ FUSE GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/YEL WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ON OR START IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) J/C 10 (BEHIND UPPER CENTER OF DASH) J/C 12 (BEHIND UPPER CENTER OF DASH) J/C 13 (BEHIND UPPER CENTER OF DASH) J/C 16, 17 (BEHIND UPPER CENTER OF DASH) PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK/BLK WIRE RED WIRE RED/WHT WIRE SHIELD SHIELD 1 2 4 5 6 28 29 22 23 M- M+ SLU- SLU+ SPEEDOMETER THROTTLE POSITION SENSOR, MOTOR (ON THROTTLE BODY) TRANSMISSIONS SYSTEM VEHICLE SPEED SENSOR (ON TRANSMISSION) VIO/WHT WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

1 2 3 4 PNK WIRE ABSORBER CONTROL SWITCH AFS ECU (RIGHT SIDE OF DASH) AIR SUS RELAY AIRSUS FUSE BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE BRN/YEL WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (AT LEFT KICK PANEL) STOP FUSE DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) STPI EA (AT RIGHT RADIATOR SIDE SUPPORT) EB (UNDER FUSIBLE LINK BLOCK) FRONT HEIGHT CONTROL VALVE FUSIBLE LINK BLOCK (ON RIGHT REAR OF ENGINE COMPARTMENT) GAUGE FUSE GRN WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE HEIGHT CONTROL EXHAUST VALVE HEIGHT CONTROL SWITCH HOT AT ALL TIMES HOT IN ON OR START II (AT RIGHT RADIATOR SIDE SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) IK (AT RIGHT SIDE OF DASH) J/C 12 (BEHIND UPPER CENTER OF DASH) J/C 14 (BEHIND UPPER CENTER OF DASH) J/C 16, 17 (BEHIND UPPER CENTER OF DASH) J/C 23 (REARWARD OF LEFT REAR FENDERWELL) LH - LT GRN/BLK WIRE LUGGAGE ROOM J/B REAR HEIGHT CONTROL VALVE ORG/ WIRE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK WIRE PNK/BLU WIRE RED/BLK WIRE RED/WHT WIRE RH- RM+ SBF SGF SHFL SHORT CONNECTOR (RIGHT END OF DASH) SHRL SOLID STATE STOP LIGHT SWITCH (ABOVE BRAKE PEDAL, ON BRACKET) TEMS SPORT IND VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

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

+SM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 S/S +2 1 2 3 4 5 6 7 8 9 10 AIR BAG WIP BACK BLK WIRE BLK/RED WIRE BLU WIRE BLU/RED WIRE COMPUTER DATA LINES SYSTEM CSPT DRIVER SIDE J/B (AT LEFT KICK PANEL) ENGINE ROOM 1 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FSPT FUSE GRN WIRE GRY/BLK WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN ON OR START WIP FUSE IGNITION SWITCH II (AT RIGHT SIDE OF SHIFT LEVER) IK (AT RIGHT SIDE OF DASH) INSTRUMENT CLUSTER SYSTEM LCTY RCTY SNOW PWR RRSW LOCK OFF LT BLU WIRE LT GRN WIRE MEMORY SYSTEMS MPX MPX-B B/ANC GND MPX-IG NAVIGATION SYSTEM P B/ANC FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PASSIVE RESTRAINT SYSTEM PBIL PBM+ PBM- BKLL PIND PNK WIRE RED/BLU WIRE RED/WHT WIRE RUN WIRE SUPPLEMENTAL RESTRAINTS SYSTEM TRANSMISSIONS SYSTEM VIO WIRE VIO/WHT WIRE WARNING SYSTEM WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WIPER/WASHER SYSTEM YEL WIRE

A/C SYSTEM ACCELERATOR POSITION SENSOR (BEHIND LEFT CENTER OF DASH) ANTI-THEFT SYSTEM BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/ORG WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE CANL CANH CCV COMBINATION METER COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM DATA LINK CONNECTOR 3 (BELOW LEFT SIDE OF DASH) EC (LEFT RADIATOR SIDE SUPPORT) ENGINE CONTROL MODULE (ECM) (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/RED WIRE IGSW TAM II (RIGHT SIDE OF SHIFT LEVER) IMI IMO J/C 10 J/C 12 J/C 13 (BEHIND UPPER CENTER OF DASH) J/C 16, J/C 17 J/C 16, J/C 17 (BEHIND UPPER CENTER OF DASH) J/C 35 (LEFT SIDE OF DASH) LT GRN WIRE LT GRN/RED WIRE MIL IND ORG/ WIRE PNK/BLK WIRE PTNK PWR SNOW RED WIRE RED/BLK WIRE RED/YEL WIRE RFC SFTD SFTU SHORT CONNECTOR SPEEDO- METER STA MREL FC FPR TAC TACH TBP TC STP VAPOR PRESSURE SENSOR (BELOW RIGHT REAR OF VEHICLE) VCC VPA EPA VCPA WHT WIRE WHT/BLK WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM EF (ON LEFT CYLINDER HEAD) ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SWITCH ENGINE ROOM R/B 1 (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEAD- LIGHT) FUEL INJ 1 FUEL INJ 3 FUEL INJ 8 FUEL INJ 6 FUEL INJ 4 FUEL INJ 2 FUEL INJ 7 FUEL INJ 5 GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE HEATED OXYGEN SENSOR (BANK 1 SENSOR 2) (ON EXHAUST SYSTEM, BELOW VEHICLE) HEATED OXYGEN SENSOR (BANK 2 SENSOR 2) (ON EXHAUST SYSTEM, BELOW VEHICLE) HOT IN ON OR START IK (RIGHT SIDE OF DASH) INJ FUSE J/C 3, J/C 4 (LEFT FRONT OF ENGINE COMPT) LT GRN WIRE MPX PWR PWR SNOW RED WIRE SNOW WHT WIRE WHT/BLK WIRE YEL/BLK WIRE