Lexus LS III facelift (2003-2006) ec (at left radiator side support) Wiring diagrams

15 12 7 4 5 WFSE TS SIL CG SG 7 6 SPDR SPDL ABS 1 FUSE ABS CUT RELAY (ON LEFT REAR OF ENGINE COMPT) ABS MTR RELAY AFS ECU (RIGHT SIDE OF DASH) ASSEMBLY) LEFT REAR ABS SPEED SENSOR BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BM FR+ FL- RR+ RL- FSW+ BRAKE PEDAL LOAD SENSING SWITCH BRN WIRE BRN/WHT WIRE BZ +BS COMPUTER DATA LINES SYSTEM D/G MRF MR DATA LINK CONNECTOR 3 (BELOW LEFT SIDE OF DASH) DRIVER SIDE J/B EC (AT LEFT RADIATOR SIDE SUPPORT) EF (ON LEFT CYLINDER HEAD) ENGINE ROOM 3 R/B FR- FL+ RR- RL+ FRO FLO FUSIBLE LINK BLOCK (ON RIGHT ABS 2 FUSE REAR OF ENGINE COMPT) GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES INIT WFSE CSW JUNCTION CONNECTOR 16, 17 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 3, 4 (LEFT FRONT OF ENGINE COMPT) LBL CANH LEFT FRONT ABS SPEED SENSOR LT GRN WIRE LT GRN/BLK WIRE ORG/ WIRE PARKING BRAKE SWITCH (BEHIND LEFT END OF DASH, ON PARKING BRAKE MECHANISM) PNK WIRE PRESSURE SWITCH (LOWER LEFT SIDE OF DASH) RED WIRE RED/WHT WIRE RED/YEL WIRE STP PKB TRACTION CONTROL SWITCH TS CANL VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED 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

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

ABS IG FUSE ACCELERATION SENSOR AIRSUS FUSE BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLK WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CONTROL ACTUATOR CONTROL SENSOR DRIVER SIDE J/B (AT LEFT KICK PANEL) EC (AT LEFT RADIATOR SIDE SUPPORT) ERL ERR FAL+ FBL- RM+ RM- GGND GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HOT IN ON OR START IG (AT LEFT SIDE OF DASH) J/C 17 (BEHIND UPPER CENTER OF DASH) J/C 18 (BEHIND UPPER RIGHT SIDE OF DASH) J/C 28, 29 (REARWARD OF RIGHT REAR FENDERWELL) J/C 30 (REARWARD RIGHT REAR OF FENDERWELL) LEFT REAR HEIGHT LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE ORG/ WIRE PNK VH WIRE PNK WIRE PNK/BLU WIRE RAL+ RAR+ RAR+ RAR- RBR+ RBR- RAL+ RAL- RBL+ RBL- RBL- RBR- RED WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR HEIGHT CONTROL SENSOR (RIGHT REAR OF LUGGAGE COMPT) SGFR SGRR SHRR SGFL SHRL PNK WIRE SHB SHFL SHFR SHG SHRL SHRR SIL TD HSW SLFR SLFL STEERING SENSOR VGS VIO WIRE VIO/GRN WIRE VIO/RED WIRE VIO/YEL WIRE VT GND SLEX RC CANH CANL WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/RED WIRE

BLK WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE COMBINATION METER COMBINATION SWITCH IG CRAL CRAR SIDR DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B (AT LEFT KICK PANEL) MPX-IG FUSE DRIVER SIDE J/B ECU STPI EA (AT RIGHT RADIATOR SIDE SUPPORT) EA (AT RIGHT RADIATOR SIDE SUPPORT) EC (AT LEFT RADIATOR SIDE SUPPORT) EC (AT LEFT RADIATOR SIDE SUPPORT) ENGINE ROOM 2 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FRONT CONTROLLER FTAIL FUSE GRN WIRE GRN/BLK WIRE GRN/YEL WIRE HAZ FUSE HAZARD SWITCH HOT AT ALL TIMES HOT AT ALL TIMES DRIVER SIDE J/B (AT LEFT KICK PANEL) STOP FUSE HOT AT ALL TIMES PASSENGER SIDE J/B (AT RIGHT KICK PANEL) HOT IN ON OR START IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) J/C 13 (BEHIND UPPER CENTER OF DASH) J/C 14, 15 (BEHIND UPPER CENTER OF DASH) LEFT FRONT PARKING LIGHT LEFT FRONT SIDE MARKER LIGHT LEFT FRONT TURN SIGNAL LIGHT RIGHT FRONT TURN SIGNAL LIGHT LEFT TURN SIGNAL IND ORG/ WIRE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) POWER TILT, POWER TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) RED WIRE RIGHT FRONT SIDE MARKER LIGHT RIGHT FRONT PARKING LIGHT RIGHT TURN SIGNAL IND SIDL STOPLIGHT SWITCH TURN LH TURN RH HAZ VIO WIRE VIO/GRN WIRE W/ COMPASS W/O COMPASS WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLOWER MOTOR BRAKE FLUID LEVEL WARNING SWITCH BRAKE PEDAL LOAD SENSING SWITCH BRN WIRE COOLING FAN ECU EA (AT RIGHT RADIATOR SIDE SUPPORT) EB (UNDER FUSIBLE LINK BLOCK) EC (AT LEFT RADIATOR SIDE SUPPORT) ED (AT TOP LEFT OF DASH) EFI MAIN RELAY ENGINE CONTROL MODULE ENGINE HOOD COURTESY SWITCH FAN RELAY FRONT HEIGHT CONTROL VALVE FRONT WIPER MOTOR HEADLIGHT CLEANER CONTROL RELAY HEIGHT CONTROL COMPRESSOR HEIGHT CONTROL EXHAUST VALVE J/C 3 (LEFT FRONT OF ENGINE COMPT) J/C 7 (BELOW ENGINE ROOM 1 J/B, ENGINE ROOM 1 R/B) LEFT FRONT FOG LIGHT LEFT FRONT PARKING LIGHT LEFT FRONT SIDE MARKER LIGHT LEFT FRONT SUSPENSION CONTROL ACTUATOR LEFT FRONT TURN SIGNAL LIGHT LEFT HEADLIGHT CONTROL ECU PARK/ NEUTRAL POSITION SWITCH EXHAUST GAS SENSOR RELAY RIGHT FRONT FOG LIGHT RIGHT FRONT PARKING LIGHT RIGHT FRONT SIDE MARKER LIGHT RIGHT FRONT SUSPENSION CONTROL ACTUATOR RIGHT FRONT TURN SIGNAL LIGHT RIGHT HEADLIGHT (HIGH BEAM) RIGHT HEADLIGHT CONTROL ECU SKID CONTROL ECU W/ ACTUATOR WASHER LEVEL SENSOR WASHER MOTOR LEFT HEADLIGHT (HIGH BEAM) WHT WIRE WHT/BLK WIRE

AFS ECU (RIGHT SIDE OF DASH) BLK WIRE BLK/RED WIRE BLU WIRE BLU/ORG WIRE BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM DOME FUSE DRIVER SIDE J/B (AT LEFT KICK PANEL) EA (AT RIGHT RADIATOR SIDE SUPPORT) EC (AT LEFT RADIATOR SIDE SUPPORT) ENGINE ROOM 1 J/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) ENGINE ROOM 1 R/B ENGINE ROOM 2 R/B (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FHHL HLHL HLHR FFOG FOGL FOGR FRONT CONTROLLER FRONT FOG IND FUSE GATEWAY ECU (BEHIND LEFT END OF DASH) GAUGE FUSE GRN WIRE GRY WIRE H-LP HI FUSE FR FOG FUSE H-LP L LWR FUSE H-LP R LWR FUSE HEAD IND (USA) HEAD LP RELAY HIGH BEAM IND HOT AT ALL TIMES HOT IN ON OR START II (AT RIGHT SIDE OF SHIFT LEVER) JUNCTION CONNECTOR 10 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 12 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 16, 17 (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 36, 41 (CENTER OF DASH) LEFT FRONT FOG LIGHT LEFT HEADLIGHT CONTROL ECU (BEHIND LEFT HEADLIGHT) LEFT HIGH BEAM HEADLIGHT LT GRN WIRE MAIN FUSIBLE LINK PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT FOG LIGHT RIGHT HEADLIGHT CONTROL ECU (BEHIND RIGHT HEADLIGHT) RIGHT HIGH BEAM HEADLIGHT VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

25 24 CAN H CAN L 4 16 MPX- PIND 5 14 MOPS MOL A/B A/C CONTROL ASSEMBLY A/T D A/T R ABS IND. AFS OFF IND AT-N AT-P AT-S BEAM IND BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BO (AT RIGHT REAR QUARTERPANEL) BRAKE FLUID LEVEL WARNING SWITCH (ON BRAKE MASTER CYLINDER RESERVOIR) BRAKE IND BRN WIRE CAN H CAN L LBL- PKB CENTER CLUSTER INTEGRATION PANEL CHARGE IND CLOCK (W/O NAVIGATION) COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE IND DISPLAY MULTI DOME FUSE DOOR IND DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B (AT LEFT KICK PANEL) GAUGE FUSE EC (AT LEFT RADIATOR SIDE SUPPORT) ECT PWR IND ECT SNOW IND EF (ON LEFT CYLINDER HEAD) ENGINE CONTROL MODULE (ON LEFT FRONT OF ENGINE COMPARTMENT, IN PROTECTIVE CASE) ENGINE CONTROLS SYSTEM ELECTRONIC SUSPENSION SYSTEM ENGINE OIL LEVEL SENSOR (ON LEFT CENTER OF ENGINE) EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM FRONT FOG IND FSME FSMS FSMV FSSE FSSS FSSV FUEL GAUGE FUEL IND FUEL SENDER (MAIN) (UNDER LEFT REAR OF VEHICLE, FORWARD OF LEFT REAR FENDERWELL) FUEL SENDER (SUB) (FORWARD OF RIGHT REAR FENDERWELL) GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRY WIRE GRY/BLK WIRE HEAD IND (USA) (CANADA) TAIL IND HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IH (AT RIGHT SIDE OF SHIFT LEVER) II (AT RIGHT SIDE OF SHIFT LEVER) ILL+ PBEW INTERIOR LIGHTS SYSTEM ELECTRONIC SUSPENSION SYSTEM J/C 10, 11 (BEHIND UPPER CENTER OF DASH) J/C 12 (BEHIND UPPER CENTER OF DASH) J/C 14, 15 (BEHIND UPPER CENTER J/C 16, 17 (BEHIND UPPER CENTER OF DASH) J/C 29 (REARWARD OF RIGHT REAR FENDERWELL) J/C 30 J/C 4 (LEFT FRONT OF ENGINE COMPARTMENT) LEFT TURN IND LT BLU WIRE LT GRN WIRE LT GRN/RED WIRE LUGGAGE COMPT) LUGGAGE ROOM J/B ECU (ON LEFT SIDE OF MALFUNCTION IND LAMP MASTER IND MPX MPX+ COMPUTER DATA LINES SYSTEM MPX- MULTI-DISPLAY NAVIGATION, ENGINE CONTROLS, ELECTRONIC POWER STEERING, SOUND SYSTEMS NUM ODO OF DASH) OF DASH, ON PARKING BRAKE MECHANISM) ORG/ WIRE P-ACC FUSE P-IG FUSE PARKING BRAKE SWITCH (BEHIND LEFT END PASSENGER SIDE J/B PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B (AT RIGHT KICK PANEL) FUSE PASSENGER SIDE J/B ECU PBEW PBLT PNK WIRE PNK/BLK WIRE RED WIRE RED/ LT GRN WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT FRONT PAD WEAR INDICATOR SWITCH (RIGHT FRONT ABS SPEED SENSOR) RIGHT REAR PAD WEAR INDICATOR SWITCH (RIGHT REAR ABS SPEED SENSOR) RIGHT TURN IND RSET SEAT BELT IND SHIFT RANGE POSITION INDICATOR LIGHT SKID CONTROL ECU W/ ACTUATOR (BEHIND LEFT SIDE OF DASH) SLIP IND SPEEDOMETER SRS IND TAC TACHOMETER TAMOUT TC TAMO IG+ TECH TEMS TEMS SPORT IND TRAC OFF IND TRIP TRIP SWITCH VIO WIRE VIO/GRN WIRE VIO/RED WIRE VIO/WHT WIRE WATER TEMP GAUGE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

A/C IG FUSE AIR CONDITIONING SYSTEM ANTI-THEFT, BODY COMPUTER, EXTERIOR LIGHTS, HEADLIGHTS SYSTEMS BEHIND HEADLIGHT) BLK WIRE BLU WIRE BODY COMPUTER, HEADLIGHTS SYSTEMS BODY COMPUTER, WIPER/WASHER SYSTEMS CRUISE CONTROL, ENGINE CONTROLS, TRANSMISSIONS SYSTEMS DOME FUSE EC (AT LEFT RADIATOR SIDE SUPPORT) ENGINE CONTROLS SYSTEMS ENGINE ROOM R/B 1 ENGINE ROOM R/B 1 (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FR FOG FUSE FR IG FUSE FROM DRIVER SIDE J/B FROM ENGINE ROOM J/B 1 FROM FR FOG FUSE (DIAGRAM 2 OF 5) FROM FUSIBLE LINK BLOCK FROM PASSENGER SIDE J/B GRN WIRE H-LP CLN FUSE IGN FUSE INJ FUSE J/C 3 (LEFT FRONT OF ENGINE COMPT) J/C 7 (BELOW ENGINE ROOM J/B 1, ENGINE ROOM R/B 1) LT GRN WIRE ORG/ WIRE PASSENGER SIDE J/B RED WIRE RELAY RELAY (DIAGRAM 2 OF 5) RELAY) (DIAGRAM 1 OF 5) TAIL FUSE WASHER FUSE WHT WIRE WHT/BLK WIRE WHT/RED WIRE WIP FUSE WIPER/ WASHER SYSTEM 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