Lexus LS III facelift (2003-2006) junction connector 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

+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

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

A/C CONTROL ASSEMBLY AFS ECU AFS OFF SWITCH AIR BAG SENSOR ASSEMBLY AIR SUS RELAY BLK WIRE CENTER CLUSTER INTEGRATION PANEL CLOCK COMBINATION METER CONSOLE BOX ILLUMINATION DOOR LOCK CONTROL RECEIVER (INNER MIRROR) ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SWITCH FRONT CIGARETTE LIGHTER, POWER OUTLET FRONT ROOM OSCILLATOR GLOVE BOX LIGHT 1 HAZARD SWITCH HEIGHT CONTROL SWITCH ABSORBER CONTROL SWITCH II (AT RIGHT SIDE OF SHIFT LEVER) IK (AT RIGHT SIDE OF DASH) JUNCTION CONNECTOR LEFT FRONT VANITY LIGHT RIGHT REAR INTERIOR LIGHT LEFT REAR INTERIOR LIGHT LEFT REAR VANITY LIGHT MOON ROOF CONTROL ECU OVERHEAD J/B P ACC RELAY PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PPS ECU RELAY RIGHT FRONT BUCKLE SWITCH RIGHT FRONT VANITY LIGHT RIGHT REAR VANITY LIGHT MAYDAY SW (OVERHEAD J/B) SHIFT LOCK CONTROL ECU SHORT CONNECTOR (HEIGHT CONTROL) TELEPHONE TRANSCEIVER/ SPEAKER RELAY W/O NAVIGATION WHT WIRE WHT/BLK WIRE YAW RATE SENSOR

AIR PURIFIER LIGHT A/C AMPLIFIER BLK WIRE BN (AT RIGHT REAR FLOOR PARTITION PANEL) BO (AT RIGHT REAR QUARTERPANEL) BQ (AT RIGHT REAR SEAT BACK) CIGARETTE LIGHTER (REAR) CLIMATE CONTROL SEAT ECU (FRONT PASSENGER'S SEAT) CLIMATE CONTROL SEAT ECU (RIGHT REAR SEAT) COOL BOX ILLUMINATION SMOKE SENSOR DOOR LOCK CONTROL RECEIVER FRONT PASSENGER DOOR ECU IR (UNDER RIGHT FRONT SEAT) J/C 27 (FORWARD OF RIGHT REAR FENDERWELL) J/C 28, 29 (REARWARD OF RIGHT REAR FENDERWELL) J/C 30 (REARWARD OF RIGHT REAR FENDERWELL) JUNCTION CONNECTOR LEFT REAR SEAT HEATER RIGHT REAR SEAT HEATER LUGGAGE OSCILLATOR (INNER) NAVIGATION ECU POWER SEAT CONTROL SWITCH (FRONT PASSENGER'S SEAT LUMBAR SUPPORT) POWER SEAT CONTROL SWITCH (FRONT PASSENGER'S SEAT) POWER SEAT POSITION SENSOR (REAR PASSENGER'S RIGHT SEAT SLIDE CONTROL) REAR BLOWER MOTOR REAR CIGARETTE LIGHTER REAR DAMPER SERVO MOTOR REAR OF LUGGAGE COMPT) REAR WINDOW DEFOGGER RIGHT FRONT SEAT HEATER RIGHT REAR DOOR ECU RIGHT REAR HEAD REST LIMIT SWITCH RIGHT REAR PAD WEAR INDICATOR SWITCH (RIGHT REAR ABS SPEED SENSOR) RIGHT REAR SEAT ECU RIGHT REAR SEAT HEATER RIGHT REAR SUSPENSION CONTROL ACTUATOR RIGHT VIBRATION SEAT ECU ROOM OSCILLATOR (REAR) SEAT HEATER SWITCH (REAR) RIGHT ARMREST COURTESY SWITCH (W/ REAR SEAT HEATER) SGND SNSE STEREO COMPONENT AMPLIFIER STEREO COMPONENT TUNER TELEPHONE TRANSCEIVER/ SPEAKER RELAY TELEVISION CAMERA ECU W/ REAR POWER SEAT W/O REAR POWER SEAT WHT WIRE WHT/BLK WIRE