Lexus LS III (2000-2003) transponder key computer (behind upper center of dash) Wiring diagrams

10 13 2 BUBS MPX- MPX+ 2 13 14 CLTB CLTS CLTE 5 7 8 MPX-B 7 15 HRLY AUTOMATIC LIGHT CONTROL SENSOR (BEHIND UPPER CENTER OF DASH) BLK WIRE BLK/WHT WIRE BLU WIRE BRAKE FLUID LEVEL WARNING SWITCH (ON BRAKE MASTER CYLINDER RESERVOIR) BRN WIRE COMBINATION SWITCH COMPUTER DATA LINES SYSTEM DATA RSSI DRIVER DOOR ECU (INSIDE FRONT OF LEFT FRONT DOOR) CTY DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVER SIDE J/B ECU FUSE GRN WIRE GRY/BLK WIRE HEAD HOT AT ALL TIMES PASSENGER SIDE J/B (AT RIGHT KICK PANEL) HOT IN RUN OR START J/C 13 (BEHIND UPPER CENTER OF DASH) J/C 14, 15 (BEHIND UPPER CENTER OF DASH) J/C 7 (BELOW ENGINE ROOM 1 J/B) LEFT FRONT DOOR COURTESY SWITCH LUGGAGE ROOM J/B ECU (ON LEFT SIDE OF LUGGAGE COMPARTMENT) MPX-IG MPX-IG FUSE ORG/ WIRE PARKING BRAKE SWITCH (BEHIND LEFT SIDE OF DASH) PNK WIRE PNK/BLU WIRE POWER TILT AND POWER TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) RCO RDA RSSI RED WIRE RED/BLK WIRE RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE SKID CONTROL ECU (BEHIND LEFT SIDE OF DASH) THEFT DETERRENT ECU (BEHIND UPPER RIGHT CENTER OF DASH) TRANSPONDER KEY COMPUTER (BEHIND UPPER CENTER OF DASH) VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE YEL/BLK 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

1 2 3 4 5 6 7 8 ECUB 28 9 20 21 29 MSWE BLK WIRE BLK/BLU WIRE BLK/ORG WIRE BLU WIRE BLU/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER DOOR ECU (INSIDE FRONT OF LEFT FRONT DOOR) DRIVER SIDE J/B (AT LEFT KICK PANEL) DRIVING POSITION MEMORY SWITCH FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START J/C 13 (BEHIND UPPER CENTER OF DASH) J/C 14, J/C 15 (BEHIND UPPER CENTER OF DASH) J/C 9 (BEHIND LEFT END OF DASH) LT GRN WIRE MMRY MPX-IG FUSE NCA WIRE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK WIRE PNK/BLK WIRE PNK/BLU WIRE POWER TILT, POWER TELESCOPIC ECU (BEHIND LEFT SIDE OF DASH) RED WIRE RED/BLK WIRE RED/BLU WIRE TELESCOPIC MOTOR, POSITION SENSOR TI, TE FUSE TILT MOTOR, POSITION SENSOR TRANSPONDER KEY COMPUTER (BEHIND UPPER CENTER OF DASH) UNLOCK WARNING SWITCH VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CLS COMBINATION METER CTY CTY CTY DOME FUSE FUSE DOOR LOCK CONTROL RECEIVER (INNER MIRROR) DATA RSSI +5 DOWN UP OPN DRIVER DOOR ECU (INSIDE FRONT OF LEFT FRONT DOOR) DRIVER SIDE J/B (AT LEFT KICK PANEL) DWN UP GATEWAY-ECU (BEHIND LEFT SIDE OF DASH) GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START HOT IN RUN DRIVER SIDE J/B (AT LEFT KICK PANEL) GAUGE FUSE IG OPN CLS J/C 10, J/C 12 (BEHIND UPPER CENTER OF DASH) J/C 14 (BEHIND UPPER CENTER OF DASH) J/C 16, J/C 17 (BEHIND UPPER CENTER OF DASH) LEFT FRONT DOOR COURTESY SWITCH LEFT REAR DOOR COURTESY SWITCH LEFT REAR DOOR ECU (INSIDE FRONT OF LEFT REAR DOOR) LT GRN WIRE LT GRN/RED WIRE MOON ROOF CONTROL ECU (AT FRONT OF ROOF OPENING) MPX OVERHEAD J/B (AT FRONT OF ROOF OPENING) IG P-IG FUSE PASSENGER SIDE J/B (AT RIGHT KICK PANEL) PNK PNK WIRE PNK WIRE PNK/BLU WIRE RDA RSSI RED WIRE RED/BLK WIRE RED/YEL WIRE RIGHT REAR DOOR COURTESY SWITCH RIGHT FRONT DOOR COURTESY SWITCH S/ROOF FUSE THEFT DETERRENT ECU (BEHIND RIGHT UPPER CENTER OF DASH) TRANSPONDER KEY COMPUTER (BEHIND UPPER CENTER OF DASH) WHT WIRE WHT/BLK WIRE YEL WIRE