Lexus LS III facelift (2003-2006) j/c 12, 13 (behind upper center of dash) Wiring diagrams

1 2 4 SHB SHFL SGF 2 3 1 SHRL SHB SHG 22 23 21 24 19 SHFL 3 1 7 8 2 BAT 3 2 1 SHB SHRL SHG 3 2 1 SHG SHRR SHB ABS IG FUSE AFS OFF IND AFS OFF SWITCH BLK WIRE BLK/RED WIRE BLU (OR VIO/GRN) WIRE BLU WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER DOME FUSE DRIVER SIDE J/B (AT LEFT KICK PANEL) FUSE GATEWAY ECU (BEHIND LEFT END OF DASH) GAUGE FUSE GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ON OR START IG (AT LEFT SIDE OF DASH) IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) IK (AT RIGHT SIDE OF DASH) J/C 10 (BEHIND UPPER CENTER OF DASH) J/C 12, 13 (BEHIND UPPER CENTER OF DASH) J/C 16, 17 (BEHIND UPPER CENTER OF DASH) J/C 17 (BEHIND UPPER CENTER OF DASH) LEFT REAR HEIGHT CONTROL SENSOR (LEFT REAR OF LUGGAGE COMPT) LT GRN WIRE LT GRN/BLK (OR VIO/YEL) WIRE LT GRN/BLK WIRE LT GRN/RED (OR BLK) WIRE LT GRN/RED WIRE ORG/ WIRE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK SHRR WIRE PNK WIRE PNK/BLU WIRE REAR HEIGHT CONTROL SENSOR (UNDER CENTER REAR OF VEHICLE) RED WIRE RIGHT END OF DASH) RIGHT REAR HEIGHT CONTROL SENSOR (RIGHT SIDE OF LUGGAGE COMPT) SHORT CONNECTOR SHRL SPEEDO- METER STEERING SENSOR (INSIDE TOP OF STEERING COLUMN) VIO WIRE VIO/GRN WIRE VIO/YEL WIRE W/ ELECTRONIC MODULATED AIR SUSPENSION W/O ELECTRONIC MODULATED AIR SUSPENSION WHT WIRE WHT/BLK WIRE YEL 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

BDR BLK WIRE BLK/RED WIRE BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CPUB D DOOR FUSE DRIVER DOOR ECU (INSIDE FRONT OF LEFT FRONT DOOR) DRIVER SIDE J/B (AT LEFT KICK PANEL) FRONT PASSENGER DOOR ECU (INSIDE RIGHT FRONT DOOR) FUSE HOT AT ALL TIMES HOT IN ON OR START HTR IR (UNDER RIGHT FRONT SEAT) BL (AT LEFT REAR FLOOR PARTITION PANEL) J/C 10, 11 (BEHIND UPPER CENTER OF DASH) J/C 12, 13 (BEHIND UPPER CENTER OF DASH) J/C 21 (FORWARD OF LEFT REAR FENDERWELL) LEFT REMOTE CONTROL MIRROR MIRROR HEATER MPX-IG FUSE P DOOR FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK/BLU WIRE RED WIRE RED/BLU WIRE RIGHT REMOTE CONTROL MIRROR MIRROR HEATER SIG VIO WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE YEL 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

2 1 3 PNK WIRE 29 21 20 9 28 8 19 30 MM PNK WIRE 5 14 13 VC 5 14 6 VC VC 5 4 6 17 1 SIG CPUB BDR 6 4 5 26 1 BDR CPUB SIG 7 8 9 10 11 19 R/E RET RTR MSW M+ MIND 8 19 27 ML MUL DLE BL (AT LEFT REAR FLOOR J/C 21 PARTITION PANEL) (FORWARD OF LEFT REAR FENDERWELL) BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN/RED WIRE BRN/WHT WIRE COM COM M+R COMPUTER DATA LINES SYSTEM D DOOR FUSE DATA DOOR LOCK CONTROL RECEIVER (INNER MIRROR) (RIGHT REAR OF LUGGAGE COMPARTMENT) DRIVER DOOR ECU (INSIDE FRONT OF LEFT FRONT DOOR) DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU DRIVING POSITION MEMORY SWITCH ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPARTMENT, IN PROTECTIVE CASE) ENGINE CONTROLS SYSTEM FRONT PASSENGER DOOR ECU (INSIDE RIGHT FRONT DOOR) FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRY WIRE H- HTR- HOT AT ALL TIMES HOT IN ON OR START HSR HSSR HSSR HTR IG (AT LEFT SIDE OF DASH) IR (UNDER RIGHT FRONT SEAT) J/C 10, 11 (BEHIND UPPER CENTER OF DASH) J/C 12, 13 (BEHIND UPPER CENTER OF DASH) J/C 14, 15 (BEHIND UPPER CENTER OF DASH) L+ LP LEFT FRONT DOOR LOCK CONTROL SWITCH (POWER WINDOW MASTER SWITCH) LEFT REMOTE CONTROL MIRROR LEFT/RIGHT MOTOR LT BLU WIRE LT GRN WIRE MF MR MH MHR MHR ML MUL MMRY MPX-B MPX-IG FUSE MPX-IG GND MR MR+ MR- MSWE ML MUL PWE MV MVR MVR OUTER FOOT LIGHT OUTER MIRROR SWITCH P DOOR FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK WIRE PNK/BLK WIRE PNK/BLU WIRE RCO RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RETRACTABLE MOTOR RIGHT FRONT DOOR LOCK CONTROL SWITCH RIGHT REMOTE CONTROL MIRROR RSSI SENSOR SENSOR HSR THEFT DETERRENT ECU (BEHIND UPPER RIGHT CENTER OF DASH) UP/DOWN MOTOR VIO WIRE VIO/GRN WIRE VIO/YEL WIRE VSR VSR VSSR VSSR WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CMP COMBINATION METER COMBINATION SWITCH TLSW COMPUTER DATA LINES DRIVER SIDE J/B (AT LEFT KICK PANEL) EF (ON LEFT CYLINDER HEAD) GND MCI+ MCI- MACC GRN WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES HOT IN ACC OR ON J/C 12, 13 (BEHIND UPPER CENTER OF DASH) J/C 16, 17 (BEHIND UPPER CENTER OF DASH) J/C 3, 4 (LEFT FRONT OF ENGINE COMPT) LT GRN WIRE LT GRN/RED WIRE MULTI-DISPLAY NCA WIRE P-ACC FUSE P-IG FUSE PARKING BRAKE SWITCH (BEHIND LEFT END OF DASH, ON PARKING BRAKE MECHANISM) PASSENGER RADIO 1 SIDE J/B FUSE (AT RIGHT KICK PANEL) PBEW PNK TELSW+ TELSW- WIRE PNK WIRE PNK/BLK WIRE RED WIRE RED/GRN WIRE SLD MCO+ MCO- SLD IVO+ IVO- VR SOUND SYSTEMS SYNC VG SYSTEM VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

AIR CONDITIONING, INSTRUMENT CLUSTER, NAVIGATION, SOUND SYSTEMS BANC BEHIND HEADLIGHT) BLK WIRE BLU WIRE BODY COMPUTER SYSTEMS D DOOR FUSE DOOR LOCK, INTERIOR LIGHT, ANTI-THEFT, POWER WINDOW, ENGINE CONTROLS, STARTING/ CHARGING, TRANSMISSIONS SYSTEMS ENGINE ROOM R/B 1 FROM DRIVER SIDE J/B FROM DRIVER SIDE J/B (D-ACC RELAY) (DIAGRAM 4 OF 5) FROM FUSIBLE LINK BLOCK FRONT CIGARETTE LIGHTER FUSE FUSIBLE LINK BLOCK (ON RIGHT REAR OF ENGINE COMPT) GRN WIRE GRN/YEL WIRE GRY WIRE HEADLIGHTS SYSTEM IGNITION SWITCH IK (AT RIGHT SIDE OF DASH) J/C 12, 13 (BEHIND UPPER CENTER OF DASH) LOCK OFF LT GRN WIRE NAVIGATION, SOUND SYSTEMS ORG/ WIRE P ACC RELAY P B/ANC FUSE P CIG FUSE P DOOR FUSE P RR-IG FUSE H-LP LVL FUSE P-ACC FUSE P-IG FUSE P S/HTR FUSE PASSENGER SIDE J/B PASSENGER SIDE J/B ECU PNK WIRE RED WIRE RED/WHT WIRE RELAY RR DOOR LH FUSE RR DOOR RH RUN WIRE SEATS SYSTEM STA FUSE (ON LEFT FRONT OF ENGINE COMPT, STARTER RELAY STARTING/ CHARGING SYSTEM TEL FUSE TO J/C 16, 17 (DIAGRAM 1 OF 5) WHT WIRE WHT/GRN WIRE

7 15 16 HRLY AIR BAG SENSOR ASSEMBLY (FRONT OF CENTER CONSOLE) BLK WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BM (AT LEFT REAR QUARTERPANEL) BRN/RED WIRE BRN/WHT WIRE BUBS COMPT) COMPUTER DATA LINES SYSTEM D-ACC FUSE DATA RSSI +5 DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU ENGINE HOOD COURTESY SWITCH (NEAR HOOD LATCH, ON FRONT CENTER OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE GSW GSW RDA RSSI HDCY HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT IN ON OR ACC IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE IND BZR J/C 10, 11 J/C 10, 11 (BEHIND UPPER CENTER OF DASH) J/C 12, 13 (BEHIND UPPER CENTER OF DASH) J/C 14, 15 (BEHIND UPPER CENTER OF DASH) J/C 24 ON LEFT REAR OF LUGGAGE COMPARTMENT LID) JC-23 KEYLESS BUZZER ON/OFF SWITCH LT BLU WIRE LT GRN/BLK WIRE LUGGAGE COMPARTMENT DOOR KEY UNLOCK SWITCH (IN LUGGAGE LUGGAGE ROOM J/B (ON LEFT SIDE OF LUGGAGE COMPT) LUGGAGE ROOM J/B ECU MPX OF SHIFT LEVER) ORG/ WIRE P-GND PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK/BLU WIRE RCO RED WIRE RED/BLU WIRE RED/YEL WIRE SECURITY FUSE SECURITY INDICATOR LIGHT (RHEOSTAT) SH- BZRG IG THEFT DETERRENT ECU (BEHIND UPPER RIGHT CENTER OF DASH) THEFT DETERRENT HORN (ON RIGHT REAR OF ENGINE COMPT) TKUL TRANSPONDER KEY COMPUTER (BEHIND UPPER CENTER OF DASH) UNLOCK WARNING SWITCH VIO WIRE VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL WIRE

13 10 MPX- BUBS 2 3 LPSW TKUL 7 15 16 HRLY 9 15 13 14 31 32 FTAL FHOR HORH HORL BLK WIRE BLK/WHT WIRE BLU WIRE BM (AT LEFT REAR QUARTERPANEL) BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU EC (AT LEFT RADIATOR SIDE SUPPORT) ENGINE HOOD COURTESY SWITCH (NEAR HOOD LATCH, ON FRONT CENTER OF ENGINE COMPT) ENGINE ROOM 1 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) ENGINE ROOM 2 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FRONT CONTROLLER FUSE FUSIBLE LINK BLOCK (ON RIGHT REAR OF ENGINE COMPT) GND B+ GRN WIRE GRN/BLK WIRE GRN/WHT WIRE HAZ FUSE HDCY HEADLIGHTS SYSTEM COMPUTER DATA LINES SYSTEM HIC HORN TAIL FUSE FUSE HORNS SYSTEM COMPUTER DATA LINES SYSTEM HOT AT ALL TIMES IG (AT LEFT SIDE OF DASH) INNER LUGGAGE OSCILLATOR (LEFT REAR OF LUGGAGE COMPT) J/C 10, 11 J/C 12, 13 (BEHIND UPPER CENTER OF DASH) J/C 14, 15 (BEHIND UPPER CENTER OF DASH) J/C 24, 25 (ON LEFT REAR OF LUGGAGE COMPARTMENT LID) JC-23 KSW PUSH LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LUG J/B FUSE LUGGAGE COMPARTMENT DOOR KEY UNLOCK SWITCH (IN LUGGAGE COMPT) LUGGAGE COMPARTMENT DOOR OPENER SWITCH LUGGAGE ELECTRICAL KEY SWITCH (IN LUGGAGE COMPT DECKLID) LUGGAGE ROOM J/B LUGGAGE ROOM J/B ECU MPX-B P-GND PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK/BLK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/YEL WIRE STEERING LOCK ECU (LEFT SIDE OF DASH) TSW UNLOCK WARNING SWITCH VIO WIRE VIO/GRN WIRE VIO/YEL WIRE W/ COMPASS W/O COMPASS WHT WIRE WHT/BLK WIRE YEL WIRE

AFS ECU (RIGHT SIDE OF DASH) AIR BAG SENSOR ASSEMBLY BLK WIRE BLU WIRE BM (AT LEFT REAR QUARTERPANEL) COMBINATION METER CTY DOME FUSE DOOR IND DRIVER DOOR ECU (INSIDE FRONT OF LEFT FRONT DOOR) DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B (AT LEFT KICK PANEL) UNLOCK WARNING SWITCH ENGINE ROOM 2 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FRONT CONTROLLER FUSE GATEWAY ECU (BEHIND LEFT END OF DASH) GAUGE FUSE GND PBEW GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) IJ (AT RIGHT DASH BRACE) IK (AT RIGHT SIDE OF DASH) J/C 10 (BEHIND UPPER CENTER OF DASH) J/C 12 (BEHIND UPPER CENTER OF DASH) J/C 12, 13 (BEHIND UPPER CENTER OF DASH) J/C 14, 15 (BEHIND UPPER CENTER OF DASH) J/C 16, 17 (BEHIND UPPER CENTER OF DASH) JC-23 LEFT FRONT BUCKLE SWITCH (INSIDE OF LEFT FRONT SEAT BELT BUCKLE) LT GRN WIRE ORG/ WIRE P-IG FUSE PASSENGER SEAT BELT WARNING LIGHT (CLOCK) PASSENGER SEAT BELT WARNING LIGHT (MULTI- DISPLAY) PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PBEW PNK WIRE RED WIRE SEAT BELT IND THEFT DETERRENT ECU TRANSPONDER KEY COMPUTER (BEHIND UPPER CENTER OF DASH) VIO WIRE VIO/GRN WIRE W/ NAVIGATION SYSTEM W/O NAVIGATION SYSTEM WHT WIRE WHT/BLK WIRE YEL WIRE