Lexus LS III (2000-2003) front controller Wiring diagrams

1 4 5 6 16 17 23 26 GROUND CPUB SIG BDR PCT 1 4 5 6 17 23 25 26 GROUND CPUB SIG BDR 6 7 8 5 RSSI DATA +5 7 9 10 20 LSW KUL KL CPSE 8 19 22 30 ML MUL PWS PWE BLK WIRE BLU WIRE BLU/RED WIRE BRN/RED WIRE BRN/WHT WIRE CTY D-ACC FUSE DOOR LOCK CONTROL RECEIVER (INNER MIRROR) DRIVER DOOR ECU (IN LEFT FRONT DOOR) DRIVER SIDE J/B (AT LEFT KICK PANEL) ENGINE ROOM R/B 2 (ON LEFT FRONT OF ENGINE COMPT) FRONT CONTROLLER FRONT PASSENGER DOOR ECU (IN RIGHT FRONT DOOR) GATEWAY ECU (BEHIND LEFT END OF DASH) GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES IND BZR J/C 21 (FORWARD OF LEFT REAR FENDERWELL) J/C 27 (FORWARD OF RIGHT REAR FENDERWELL) JUNCTION CONNECTOR (BEHIND UPPER CENTER OF DASH) KEYLESS BUZZER (INSIDE TOP OF LEFT FRONT FENDER, NEAR BASE OF "A" PILLAR) KEYLESS BUZZER ON/OFF SWITCH LEFT FRONT DOOR COURTESY SWITCH LEFT FRONT DOOR LOCK MOTOR MPX-IG FUSE ORG/ WIRE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK WIRE PNK/BLU WIRE PNK/GRN WIRE POWER WINDOW MASTER SWITCH 8 18 6 10 ML MUL PW RED WIRE RED/BLU WIRE RIGHT FRONT DOOR COURTESY SWITCH RIGHT FRONT DOOR LOCK CONTROL SWITCH 8 19 22 27 3 1 4 2 ML MUL PWS DLE UL ILL+ RIGHT FRONT DOOR LOCK MOTOR SECURITY FUSE SECURITY INDICATOR LIGHT SH- BZRG IG RDA RSSI THEFT DETERRENT ECU (BEHIND UPPER RIGHT CENTER OF DASH) THEFT DETERRENT HORN (IN RIGHT REAR OF ENGINE COMPARTMENT) VIO WIRE VIO/GRN WIRE VIO/WHT WIRE VIO/YEL WIRE WARNING SYSTEMS WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/RED WIRE YEL/BLK WIRE

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

BLK WIRE BLK/WHT WIRE BLU/ORG WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (AT LEFT KICK PANEL) ENGINE ROOM R/B 1 (LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FR FOG FUSE ENGINE ROOM R/B 2 EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM FHHI HORH HORL FHOR SIDR SIDL HLHR FMIG FOGR FOGL FFOG W+ FRONT CONTROLLER FUSE FWAS CRAR CRAL FTAL GRN WIRE GRN/BLK WIRE GRN/ORG WIRE GRN/WHT WIRE GRN/YEL WIRE H-LP HI FUSE HEADLIGHTS SYSTEM HLHL HORN HORN FUSE HOT AT ALL TIMES HOT IN ON OR START INSTRUMENT CLUSTER SYSTEM MPX-IG FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE TAIL FUSE VIO WIRE VIO/GRN WIRE VIO/RED WIRE VIO/WHT WIRE WASHER FUSE WHT/BLK WIRE WIPER/WASHER SYSTEM

15 30 12 ES MPX SIG 31 26 12 30 15 MPX IG 6 4 26 31 32 FWAS W+ WLVL AIRBAG BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BRN WIRE COMBINATION SWITCH COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B 1 (LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) ENGINE ROOM R/B 2 (LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FRONT CONTROLLER FRONT WIPER MOTOR (BELOW LEFT SIDE OF WINDSHIELD) FUSE HOT AT ALL TIMES HOT IN ON OR START J/C 14, J/C 15 (BEHIND UPPER CENTER OF DASH) J/C 7 (BELOW ENGINE ROOM J/B 1) LT GRN WIRE LT GRN/RED WIRE OVERHEAD J/B (AT FRONT OF ROOF OPENING) P-IG FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B ECU (AT RIGHT KICK PANEL) PNK 3 WIRE PNK/BLU WIRE RAIN SENSOR (NEAR TOP CENTER OF WINDSHIELD) RED WIRE RED/BLK WIRE RED/BLU WIRE S/M S/S +2 PNK WIRE VIO WIRE VIO/GRN WIRE WASHER FUSE WASHER LEVEL SENSOR (BELOW LEFT HEADLIGHT, ON RESERVOIR) WASHER MOTOR (BELOW LEFT HEADLIGHT, ON RESERVOIR) WHT WIRE WHT/GRN WIRE WIP WIP FUSE

BLK WIRE BLK/RED WIRE BLU WIRE BLU/ORG WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM DOME FUSE ENGINE ROOM J/B 1 ENGINE ROOM J/B 1 (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) ENGINE ROOM R/B 1 ENGINE ROOM R/B 2 (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FHHL HLHL HLHR FFOG FOGL FOGR FRONT CONTROLLER FUSE GATEWAY-ECU (BEHIND LEFT SIDE OF DASH) GRN WIRE GRY WIRE GRY/BLK WIRE H-LP HI FUSE FR FOG FUSE H-LP L LWR FUSE H-LP R LWR FUSE HEAD LP RELAY HEADLIGHT CONTROL ECU (LEFT LOW BEAM) HEADLIGHT CONTROL ECU (RIGHT LOW BEAM) HOT AT ALL TIMES HOT IN RUN DRIVER SIDE J/B (AT LEFT KICK PANEL) GAUGE FUSE J/C 10, J/C 12 (BEHIND UPPER CENTER OF DASH) J/C 16, J/C 17 (BEHIND UPPER CENTER OF DASH) LEFT FRONT FOG LIGHT LEFT HIGH BEAM HEADLIGHT MAIN FUSIBLE LINK (14 GA- 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 HIGH BEAM HEADLIGHT VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

7 11 17 9 19 8 5 SHFL 9 7 21 SHRL AIR SUSPENSION ECU (BEHIND RIGHT SIDE OF DASH) BLK WIRE BLK/RED WIRE BLU WIRE CHG- RHG RH+ RHT RH- RHE IG COMBINATION METER COMBINATION SWITCH HEAD COMPUTER DATA LINES SYSTEM DOME FUSE FUSE DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) ENGINE ROOM R/B 2 (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FLO FRONT CONTROLLER GATEWAY-ECU (BEHIND LEFT SIDE OF DASH) GRN WIRE GRY WIRE H-LP LVL FUSE HEAD HEADLIGHT BEAM LEVEL CONTROL ECU (BEHIND RIGHT SIDE OF DASH) HOT AT ALL TIMES HOT IN RUN DRIVER SIDE J/B (AT LEFT KICK PANEL) GAUGE FUSE HOT IN RUN OR START J/C 10, J/C 12 (BEHIND UPPER CENTER OF DASH) J/C 16, J/C 17 (BEHIND UPPER CENTER OF DASH) LEFT HEADLIGHT BEAM LEVEL CONTROL ACTUATOR (LEFT HEADLIGHT ASSEMBLY) LEFT HEIGHT CONTROL SENSOR (INSIDE LEFT FRONT WHEELWELL) LT GRN WIRE LT GRN/BLK WIRE LT GRN/RED WIRE ORG/ WIRE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B ECU (AT RIGHT KICK PANEL) PNK WIRE PNK/BLK WIRE PNK/GRN WIRE REAR HEIGHT CONTROL SENSOR (UNDER CENTER REAR OF VEHICLE) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HEADLIGHT BEAM LEVEL CONTROL ACTUATOR (RIGHT HEADLIGHT ASSEMBLY) SBF WNG LHG LH+ LHT LH- LHE SGF SHFL SHRL SKID CONTROL ECU (BEHIND LEFT SIDE OF DASH) SPDL SPDR VIO WIRE VIO/GRN WIRE VIO/RED WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

BLK WIRE BLK/RED WIRE BLU WIRE CHG- RHG RH+ RHT RH- RHE IG COMBINATION METER COMBINATION SWITCH HEAD COMPUTER DATA LINES SYSTEM DOME FUSE FUSE DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) ENGINE ROOM R/B 2 (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FLO FRONT CONTROLLER GATEWAY-ECU (BEHIND LEFT SIDE OF DASH) GRN WIRE GRY WIRE H-LP LVL FUSE HEAD HEADLIGHT BEAM LEVEL CONTROL ECU (BEHIND RIGHT SIDE OF DASH) HOT AT ALL TIMES HOT IN RUN DRIVER SIDE J/B (AT LEFT KICK PANEL) GAUGE FUSE HOT IN RUN OR START J/C 10, J/C 12 (BEHIND UPPER CENTER OF DASH) J/C 16, J/C 17 (BEHIND UPPER CENTER OF DASH) J/C 19, J/C 20 (BEHIND UPPER RIGHT SIDE OF DASH) LEFT HEADLIGHT BEAM LEVEL CONTROL ACTUATOR (LEFT HEADLIGHT ASSEMBLY) LEFT HEIGHT CONTROL SENSOR (INSIDE LEFT FRONT WHEELWELL) LT GRN WIRE ORG/ WIRE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B ECU (AT RIGHT KICK PANEL) PNK WIRE PNK/BLK WIRE PNK/GRN WIRE REAR HEIGHT CONTROL SENSOR (UNDER CENTER REAR OF VEHICLE) RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT HEADLIGHT BEAM LEVEL CONTROL ACTUATOR (RIGHT HEADLIGHT ASSEMBLY) SBF WNG LHG LH+ LHT LH- LHE SGF SHFL SHRL SKID CONTROL ECU (BEHIND LEFT SIDE OF DASH) SPDL SPDR VIO WIRE VIO/GRN WIRE VIO/RED WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE

10 3 TX- TX+ 11 22 2 7 12 13 4 15 17 16 5 6 9 20 CG GND IG SIL BATT 6 3 2 5 TXS- TXS+ ATX+ ATX- BLU WIRE BLU/YEL WIRE BUBS CENTER CLUSTER INTEGRATION PANEL CLEARANCE SONAR ECU (ON LEFT SIDE OF LUGGAGE COMPT) COMBINATION SWITCH D-ACC FUSE 7.5 A 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 ROOM R/B 2 (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FRONT CONTROLLER FUSE 7.5 A GATEWAY ECU (BEHIND LEFT END OF DASH) GRN WIRE GRY WIRE GRY/BLK WIRE GTX+ GTX- HOT AT ALL TIMES HOT IN RUN, ACC HOT IN RUN, START J/C 31 (BEHIND LEFT REAR SEAT BACK) LEFT REAR SEAT ECU (BEHIND LEFT REAR SEAT BACK) LUGGAGE ROOM J/B ECU (ON LEFT SIDE OF LUGGAGE COMPT) MPX MPX-IG FUSE 7.5 A MULTI-DISPLAY PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK WIRE PNK/BLU WIRE POWER TILT, POWER TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) RADIO, PLAYER REAR SEAT CONTROL SWITCH RED WIRE RED/BLU WIRE SIL THEFT DETERRENT ECU (BEHIND UPPER RIGHT CENTER OF DASH) TRANSPONDER KEY COMPUTER (BEHIND UPPER CENTER OF DASH) VIO/GRN WIRE W/ NAVIGATION W/ PARK ASSIST W/O NAVIGATION WHT/BLK WIRE WHT/GRN WIRE

BLK WIRE DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU (AT LEFT KICK PANEL) ENGINE ROOM R/B 1 (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) ENGINE ROOM R/B 2 (ON LEFT FRONT OF ENGINE COMPT, BEHIND HEADLIGHT) FRONT CONTROLLER GRN/BLK WIRE GRN/WHT WIRE HORN (HIGH) HORN (LOW) HORN FUSE HORN SWITCH (COMBINATION SWITCH) HOT AT ALL TIMES SECURITY FUSE VIO/GRN WIRE

+SR -SR -SL +SL 2 4 MPX+ MPX- 3 8 MPX + MPX - 4 3 2 1 ESL SSL- SSL+ VUPL A/C CONTROL ASSEMBLY AIR BAG AIR BAG SQUIB (FRONT PASSENGER AIR BAG ASSSEMBLY) BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CENTER CLUSTER INTEGRATION PANEL COMBINATION METER DATA LINK CONNECTOR 3 (PARTIAL) (BELOW LEFT SIDE OF DASH) DBKL 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 COMPARTMENT, IN PROTECTIVE CASE) ENGINE ROOM 2 R/B (ON LEFT FRONT OF ENGINE COMPARTMENT, BEHIND HEADLIGHT) FRONT CONTROLLER GATEWAY ECU (BEHIND LEFT END OF DASH) GAUGE FUSE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE HOT IN ON OR START J/C 23 (REARWARD OF LEFT REAR FENDERWELL) JUNCTION CONNECTOR (BEHIND UPPER CENTER OF DASH) JUNCTION CONNECTOR 13 (BEHIND UPPER CENTER OF DASH) LEFT FRONT AIR BAG SENSOR (ON LEFT FRONT OF ENGINE COMPARTMENT) LEFT FRONT BUCKLE SWITCH (IN LEFT FRONT SEAT BELT BUCKLE) LEFT FRONT SIDE AIR BAG SENSOR (NEAR BASE OF LEFT "B" PILLAR) LT GRN/BLK WIRE MPX PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PASSENGER SIDE J/B ECU PNK/BLU WIRE RED WIRE RED/BLU WIRE RED/WHT WIRE RIGHT FRONT AIR BAG SENSOR (ON RIGHT FRONT OF ENGINE COMPARTMENT) SKID CONTROL ECU (BEHIND LEFT SIDE OF DASH) SOLID STATE SRS 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/GRN WIRE YEL/GRY WIRE YEL/PNK WIRE YEL/RED WIRE