Lexus LS III facelift (2003-2006) driver side j/b ecu (at left kick panel) Wiring diagrams

BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLU/ORG WIRE BLU/YEL WIRE DOME FUSE DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) EC (LEFT RADIATOR SIDE SUPPORT) EFI 1 FUSE EFI MAIN RELAY ENGINE CONTROLS SYSTEM ENGINE ROOM R/B 1 (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FUSE GAUGE FUSE GRN/BLK WIRE GRN/ORG WIRE HOT AT ALL TIMES HOT IN ON OR START J/C 1, J/C 2 (LEFT FRONT ENGINE COMPT) PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK/BLK WIRE RED WIRE STPI WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

13 12 STPI STPO 2 4 5 6 8 13 17 24 25 22 EC BATT ACCEL POSITION SENSOR (BEHIND LEFT CENTER OF DASH) BLK WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/YEL WIRE CANCEL CRUISE CONTROL SWITCH COMBINATION SWITCH COMPUTER DATA LINES SYSTEM CRUISE DRIVER SIDE J/B (AT LEFT KICK PANEL) STOP FUSE DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) EC (AT LEFT RADIATOR SIDE SUPPORT) EFI 1 FUSE ETCS FUSE ENGINE COMPT) ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) FR IG FUSE GRN/BLK WIRE GRN/ORG WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START IGN FUSE J/C J/C 1, 2 (LEFT FRONT OF ENGINE COMPT) J/C 3 (LEFT FRONT OF J/C 35 (LEFT SIDE OF DASH) MREL IGSW CANL CANH SPD OBD FUSE ORG/ WIRE PNK/BLK WIRE RED WIRE RED/BLK WIRE RED/YEL WIRE RES+ SET/ COAST SFTD SFTU CCS SHORT CONNECTOR (LEFT FRONT OF ENGINE COMPT) STOPLIGHT SWITCH (ABOVE BRAKE PEDAL, ON BRACKET) STP TC TRANSMISSIONS SYSTEM VIO/WHT WIRE VIO/YEL WIRE VPA EPA VCPA WHT WIRE WHT/BLK WIRE WHT/BLU WIRE YEL/BLK WIRE

1 2 3 4 5 6 IG PB HDLO BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE COMBINATION SWITCH DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) EC (AT LEFT RADIATOR SIDE SUPPORT) ENGINE ROOM 1 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FR IG FUSE FRONT CONTROLLER H-LP CLN FUSE HDCL HDLO HEAD HEADLIGHT CLEANER CONTROL RELAY (BEHIND LEFT HEADLIGHT) HEADLIGHT CLEANER MOTOR (BELOW LEFT HEADLIGHT) HEADLIGHT CLEANER SWITCH HOT AT ALL TIMES HOT IN ON OR START IG (AT LEFT SIDE OF DASH) J/C 1, 2 (LEFT FRONT OF ENGINE COMPT) LIGHT CONTROL SWITCH OFF HEAD PNK FRWA WIRE RED WIRE RED/BLK WIRE TAIL WHT WIRE WHT/BLK WIRE

11 25 CANH CANL 2 3 CANL CANH 24 25 CANL CANH 3 13 10 2 PNK MPX MPX- BUBS MPX+ WIRE 8 7 CANL CANH 9 10 CANL CANH 9 8 CANL CANH AFS ECU (RIGHT SIDE OF DASH) AIR SUSPENSION ECU (IF EQUIPPED) (BEHIND RIGHT SIDE OF DASH) BLK WIRE BLK/RED WIRE BLU WIRE BO (AT RIGHT REAR QUARTER- PANEL) BRN WIRE CLEARANCE SONAR ECU (W/ NAVIGATION) (ON LEFT SIDE OF LUGGAGE COMPARTMENT) COMBINATION SWITCH DATA LINK CONNECTOR 3 (BELOW LEFT SIDE OF DASH) 14 6 7 CANL CANH SIL DRIVER DOOR ECU (INSIDE FRONT OF LEFT FRONT DOOR) DRIVER SEAT ECU (BELOW LEFT SIDE OF DRIVER'S SEAT) DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPT, IN PROTECTIVE CASE) GRN WIRE IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) J/C 29 (REARWARD OF RIGHT REAR FENDERWELL) J/C 31 (W/ REAR POWER SEAT) (BEHIND LEFT REAR SEAT BACK) J/C 36, 37, 38, 39 40, 41, 42, 43 (CENTER OF DASH) J/C 44, 45, 46, 47, 48 (RIGHT SIDE OF DASH) J/C 49, 50, 51 (W/ NAVIGATION SYSTEM) (RIGHT REAR OF VEHICLE) LEFT REAR DOOR ECU (INSIDE LEFT REAR DOOR) LEFT REAR SEAT ECU (BEHIND LEFT SIDE OF REAR SEAT BACK) LT GRN WIRE LUGGAGE ROOM J/B ECU (ON LEFT SIDE OF LUGGAGE COMPARTMENT) MPX PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK M+ WIRE PNK WIRE PNK/BLU WIRE POWER SEAT CONTROL SWITCH (REAR SEAT) (LEFT SIDE OF REAR SEAT) POWER TILT, POWER TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) RED WIRE RED/BLU WIRE STEERING LOCK ECU (W/ SMART KEY SYSTEM) (LEFT SIDE OF DASH) STEERING SENSOR (INSIDE TOP OF STEERING COLUMN) TELEVISION CAMERA ECU (RIGHT REAR OF LUGGAGE COMPT) THEFT DETERRENT ECU (BEHIND UPPER RIGHT CENTER OF DASH) TRANSPONDER KEY COMPUTER (W/O SMART KEY SYSTEM) (BEHIND UPPER CENTER OF DASH) VIO WIRE VIO/GRN WIRE W/O NAVIGATION SYSTEM WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YAW RATE SENSOR (BELOW REAR OF CENTER CONSOLE) YEL WIRE

BLK WIRE BLU/YEL WIRE DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) 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 FHOR GRN/BLK WIRE GRN/WHT WIRE HORH HORL HORN (HIGH) (ON CENTER RADIATOR SUPPORT) HORN (LOW) (ON CENTER RADIATOR SUPPORT) HORN FUSE HORN SWITCH (COMBINATION SWITCH) +B HOT AT ALL TIMES MPX RED/BLU WIRE SECURITY FUSE VIO/GRN WIRE

5 25 LED- ASH+ 6 17 1 26 BDR 6 26 1 17 BDR ANTI-THEFT SYSTEM ASH- BDR BL (AT LEFT REAR FLOOR PARTITION PANEL) BLK WIRE BLU WIRE BN (AT RIGHT REAR FLOOR PARTITION PANEL) CLEARANCE SONAR SWITCH (OUTER MIRROR SWITCH) (W/ PARKING ASSIST) COIN BOX ILLUMI- NATION COMBINATION METER COMBINATION SWITCH COMPUTER DATA LINES SYSTEM DRIVER DOOR ECU (INSIDE FRONT OF LEFT FRONT DOOR) DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) DRIVING POSITION MEMORY SWITCH FRONT PASSENGER DOOR ECU FUSE GRN WIRE GRN/ORG WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT IN ON OR START IG (AT LEFT SIDE OF DASH) IR (UNDER RIGHT FRONT SEAT) J/C 13 (BEHIND UPPER CENTER OF DASH) J/C 14, 15 (BEHIND UPPER CENTER OF DASH) J/C 22 (REARWARD OF LEFT REAR FENDERWELL) J/C 27 JC-21 LED LEFT FRONT INSIDE HANDLE ILLUMINATION LEFT REAR ASHTRAY ILLUMINATION LEFT REAR DOOR ECU (INSIDE LEFT REAR DOOR) LEFT REAR INSIDE HANDLE ILLUMINATION LEFT REAR SEAT MEMORY SWITCH LP SEID LT BLU WIRE MPX-IG FUSE P DOOR FUSE PANEL FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B (AT RIGHT KICK PANEL) D DOOR FUSE PNK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE REMOTE CONTROL MIRROR SWITCH (OUTER MIRROR SWITCH) RHEOSTAT (LEFT SIDE OF DASH) RIGHT FRONT INSIDE HANDLE ILLUMINATION RIGHT REAR ASHTRAY ILLUMINATION RIGHT REAR DOOR ECU (INSIDE RIGHT REAR DOOR) RIGHT REAR INSIDE HANDLE ILLUMINATION RR DOOR LH FUSE RR DOOR RH FUSE TC RV TR+ VIO WIRE VIO/GRN WIRE W/ REAR POWER SEAT WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/GRN WIRE

+SL -SL +SR -SR 1 2 3 4 ESL SSL- SSL+ VUPL 2 4 MPX+ MPX- 3 8 MPX + MPX - A/C CONTROL ASSEMBLY AFS ECU (RIGHT SIDE OF DASH) AIR BAG AIR BAG SQUIB (FRONT PASSENGER AIR BAG ASSEMBLY) (RIGHT SIDE OF DASH) BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE CENTER CLUSTER INTEGRATION PANEL COMBINATION METER DATA LINK CONNECTOR 3 (BELOW LEFT SIDE OF DASH) DBKL DRIVER SIDE J/B DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) ENGINE ROOM 2 R/B (ON LEFT FRONT OF ENGINE COMPARTMENT, BEHIND HEADLIGHT) FRONT CONTROLLER GATEWAY ECU (BEHIND LEFT END OF DASH) GAUGE FUSE GRN WIRE GRY WIRE GRY/BLK WIRE HOT IN ON OR START IH (AT RIGHT SIDE OF SHIFT LEVER) JUNCTION CONNECTOR 16, 17 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 17 (BEHIND UPPER CENTER OF DASH) LEFT FRONT SIDE AIR BAG SENSOR (NEAR BASE OF LEFT "B" PILLAR) LEFT KNEE AIR BAG SQUIB (LOWER LEFT SIDE OF DASH) LT BLU WIRE MPX ORG/ WIRE PASSENGER SIDE J/B PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B ECU RED WIRE RED/BLK WIRE RED/BLU WIRE RIGHT KNEE AIR BAG SQUIB (LOWER RIGHT SIDE OF DASH) SIL SOLID STATE SRS IND TELEPHONE TRANSCEIVER, SPEAKER RELAY (ON LEFT SIDE OF LUGGAGE COMPT) VIO/GRN WIRE W/O LEXUS NAVIGATION SYSTEM W/ LEXUS NAVIGATION SYSTEM WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/ORG WIRE YEL/PNK WIRE YEL/RED WIRE YEL/VIO WIRE

BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/ORG WIRE BLU/YEL WIRE BRN WIRE C/ OPN RELAY DOME FUSE DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) EC (LEFT RADIATOR SIDE SUPPORT) EFI 1 FUSE EFI MAIN RELAY ENGINE ROOM R/B 1 (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) F/ PMP RELAY FUEL PUMP RESISTOR (LEFT REAR OF ENGINE COMPT) FUEL PUMP, FUEL SENDER (UNDER LEFT REAR OF VEHICLE) FUSE GAUGE FUSE GRN/BLK WIRE GRN/ORG WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START J/C 1, J/C 2 (LEFT FRONT ENGINE COMPT) J/C 23 (REARWARD OF LEFT REAR FENDER- WELL) J/C 7 (BELOW ENGINE ROOM J/B 1) PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK/BLK WIRE RED WIRE RED/BLK WIRE SHORT CONNECTOR STPI VSV (CANISTER CLOSED VALVE) (ON RIGHT SIDE OF ENGINE COMPT) VSV (PRESSURE SWITCHING VALVE) (BELOW RIGHT REAR OF VEHICLE) WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE