Lexus LX J300 (2021-2024) main body ecu Wiring diagrams

BD+2 BD- BD-2 BDDN BLK WIRE BLU WIRE BZR CANN CANP COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM CTYO DC- DSG DSV ECU-B 2 FUSE ECU-DCC 2 FUSE ECU-IGR 1 FUSE ECU-IGR 2 FUSE ECUB FUL GRN WIRE GRY WIRE HAF HOT AT ALL TIMES HOT W/ IGR 1 RELAY ENERGIZED HOT W/ IGR 2 RELAY ENERGIZED IGR KICK DOOR CONTROL SENSOR ASSEMBLY LEFT POWER BACK DOOR UNIT ASSEMBLY SET LIB LSBO LT GRN WIRE LUGGAGE ROOM R/B 1 MAIN BODY ECU MULTIPLEX NETWORK DOOR ECU ORG/ WIRE OSE OSL OSR PAWL PBD FUSE PBDS PNK WIRE POS POWER BACK DOOR SWITCH POWER DISTRIBUTION BOX ASSEMBLY PPL PPL/BLK WIRE PPL/RED WIRE PPL/WHT WIRE RED WIRE RIGHT END OF DASH) RIGHT POWER BACK DOOR UNIT ASSEMBLY SET TAN WIRE VIO WIRE WHT WIRE WHT/BLK WIRE

BLK WIRE BLU WIRE COMPUTER DATA LINES SYSTEM ECU-B 4 FUSE ECU-DCC 2 FUSE ENG-IGR 3 FUSE ENGINE ROOM R/B 1 ESS CANL GRN WIRE GRY WIRE H-LP CLN FUSE H-LP CLN RELAY HEADLIGHT CLEANER MOTOR, PUMP ASSEMBLY HLC HOT AT ALL TIMES HOT W/ IGR 3 RELAY ENERGIZED IGR LEFT HEADLIGHT ECU SUB-ASSEMBLY LIGHT CONTROL SWITCH MAIN BODY ECU OFF PNK WIRE POWER DISTRIBUTION BOX ASSEMBLY PPL RED WIRE RIGHT END OF DASH) RIGHT HEADLIGHT ECU SUB-ASSEMBLY SPIRAL CABLE SUB-ASSEMBLY STEERING WHEEL SWITCH HOUSING TAIL AUTO HEAD TURN SIGNAL SWITCH WHT WIRE WHT/BLK WIRE YEL WIRE

AHB AUTO TAIL OFF HEAD AUTOMATIC HIGH BEAM INDICATOR AUTOMATIC HIGH BEAM SWITCH AUTOMATIC LIGHT CONTROL SENSOR BLED BLK WIRE BLU WIRE CAN I/F CLTB CLTE CLTS COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CXPI DISPLAY ECU-ACC FUSE ECU-DCC 2 FUSE ECU-IGR 2 FUSE ECU-IGR 3 FUSE ELED ELED EL ENGINE STOP, START ECU FOG RR RELAY FOG SWITCH GRY WIRE HDL HEAD HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED HOT W/ IGR 1 RELAY ENERGIZED HOT W/ IGR 2 RELAY ENERGIZED IGR L OFF LCTY 1 13 RCTY LED DRIVER LEFT REAR FOG LIGHT (RIGHT REAR BUMPER EXTENSION MOULDING) LIGHT CONTROL SWITCH MAIN BODY ECU METER-IGR FUSE OFF ORG/ WIRE PNK WIRE POWER DISTRIBUTION BOX ASSEMBLY PPL PPL/ORG WIRE PPL/RED WIRE REAR FOG RED WIRE RIGHT END OF DASH) RIGHT REAR FOG LIGHT (RIGHT REAR BUMPER EXTENSION MOULDING) SPIRAL CABLE SUB-ASSEMBLY STEERING WHEEL SWITCH HOUSING TAIL AUTO HEAD TELLTALES TURN SIGNAL SWITCH VIO WIRE W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE

+B PNK GND WIRE BDR BLIND SPOT MONITOR IND BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLU WIRE BRN WIRE BSM BTL CANN CANP COMPUTER DATA LINES SYSTEM CPUB EC MIRROR EC+ ECI+ ECU- DCC 1 FUSE ECU-DCC 2 FUSE ECU-IGR 2 FUSE FOG LIGHT IND GRN WIRE GRN/RED WIRE GRY WIRE GTL HOT AT ALL TIMES HOT W/ IGR 2 RELAY ENERGIZED HSSR HTR IGR ILL LEFT OUTER MIRROR CONTROL ECU ASSEMBLY LEFT OUTER REAR VIEW MIRROR ASSEMBLY LT BLU WIRE LT GRN WIRE MAIN BODY ECU MIRROR HEATER MIRRORS SYSTEM MLP MRY NAVIGATION SYSTEM ORG/ WIRE PNK WIRE POWER DISTRIBUTION BOX ASSEMBLY PPL PPL/BLK WIRE PPL/BLU WIRE PPL/GRN WIRE PPL/RED WIRE PPL/WHT WIRE RED WIRE RIGHT END OF DASH) SEAT MEMORY SWITCH SET- SIG TRN+ TURN VIO WIRE VSSR WHT WIRE WHT/BLK WIRE YEL/BLK WIRE

BLK WIRE BLU WIRE BRN WIRE CANN CANP COMPUTER DATA LINES SYSTEM ECU- DCC 1 FUSE ECU-DCC 2 FUSE ECU-IGR 1 FUSE FRV- FRVD FRVU GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IG 1 RELAY ENERGIZED LFLF LFLR LFT- LFTD LFTU LT GRN WIRE LV (+) LVD LVU MAIN BODY ECU P/SEAT (FR) FUSE PNK WIRE POSITION CONTROL ECU ASSEMBLY 2 POWER DISTRIBUTION BOX ASSEMBLY PPL PPL/BLK WIRE PPL/BLU WIRE RCL- RCLF RCLR RED WIRE RIGHT END OF DASH) RIGHT FRONT POWER SEAT LIFTER MOTOR RIGHT FRONT POWER SEAT RECLINING MOTOR RIGHT FRONT POWER SEAT SLIDE MOTOR RIGHT FRONT POWER SEAT TILT MOTOR SGND SLD SLDF SLDR SSFV SSRL SSRR SSRS SYSB VIO WIRE WHT WIRE WHT/BLK WIRE

ALL DOOR LOCK RELAY ALL DOOR UNLOCK RELAY BLK WIRE BLU WIRE BRN WIRE CERTIFICATION ECU COOLING BOX AMPLIFIER (COOLING BOX ASSEMBLY) D DOOR UNLOCK RELAY D/L FUSE ECU- DCC 1 FUSE ECU-B 1 FUSE ECU-DCC 2 FUSE FOLD SEAT CONTROL ECU FROM ENGINE ROOM R/B 1 (DIAGRAM 3 OF 13) GRN WIRE ID CODE BOX LEFT OUTER MIRROR CONTROL ECU ASSEMBLY LEFT PNEUMATIC VALVE CONTROL ECU (LEFT REAR SEAT CUSHION SPRING) LEFT POSITION CONTROL ECU ASSEMBLY MAIN BODY ECU MAP LIGHT ASSEMBLY METER MIRROR SUB-ASSEMBLY MULTIPLEX NETWORK DOOR ECU MULTIPLEX TILT, TELESCOPIC ECU PARKING ASSIST ECU POSITION CONTROL ECU ASSEMBLY POSITION CONTROL ECU ASSEMBLY 2 PPL/BLK WIRE PPL/BLU WIRE PPL/BRN WIRE PPL/RED WIRE PPL/WHT WIRE RADIO- DCC FUSE RED WIRE RIGHT OUTER MIRROR CONTROL ECU ASSEMBLY RIGHT PNEUMATIC VALVE CONTROL ECU (RIGHT REAR SEAT CUSHION SPRING) RIGHT POSITION CONTROL ECU ASSEMBLY STEERING LOCK ACTUATOR/ UPPER BRACKET ASSEMBLY STOP FUSE STOP LIGHT SWITCH ASSEMBLY STRG LOCK FUSE TO IGR 1 RELAY (DIAGRAM 8 OF 13) VIO WIRE W/ 4 SEATER W/O 4 SEATER W/O DOOR CLOSER WHT WIRE

BKUP LP FUSE BLK WIRE BLU WIRE CLEARANCE WARNING ECU ASSEMBLY COOLER CONTROL SWITCH ASSEMBLY ECU-IGR 2 FUSE ELECTRICAL KEY, TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY EPS-IGR FUSE FROM IGR 2 RELAY (DIAGRAM 8 OF 13) GRN WIRE INNER REAR VIEW MIRROR ASSEMBLY INTEGRATION CONTROL, PANEL ASSEMBLY LEFT BLIND SPOT MONITOR SENSOR LEFT FRONT MULTIPLEX NETWORK DOOR ECU LEFT OUTER MIRROR CONTROL ECU ASSEMBLY LT GRN WIRE MAIN BODY ECU MAP LIGHT ASSEMBLY METER MIRROR SUB-ASSEMBLY MULTI- DISPLAY ASSEMBLY MULTI-MEDIA MODULE RECEIVER ASSEMBLY MULTIPLEX TILT, TELESCOPIC ECU NETWORK GATEWAY ECU PARK/NEUTRAL POSITION SWITCH ASSEMBLY PNK WIRE POWER STEERING ECU (RACK, PINION POWER STEERING GEAR ASSEMBLY) PPL/BLK WIRE PPL/BLU WIRE PPL/GRN WIRE PPL/PNK WIRE PPL/RED WIRE PPL/WHT WIRE REAR WIPER MOTOR ASSEMBLY RED WIRE REFRESHING SEAT SWITCH RIGHT BLIND SPOT MONITOR SENSOR RIGHT END OF DASH) RIGHT FRONT MULTIPLEX NETWORK DOOR ECU RIGHT OUTER MIRROR CONTROL ECU ASSEMBLY RIGHT POSITION CONTROL ECU ASSEMBLY RIGHT REAR MULTIPLEX NETWORK DOOR ECU TELEPHONE TRANSCEIVER ASSEMBLY TRANSMISSION CONTROL SWITCH (SHIFT LOCK CONTROL UNIT ASSEMBLY) VIO WIRE W/ DOOR CLOSER W/O DOOR CLOSER WIPER RR FUSE

BLK WIRE BLU WIRE BZR CAN I/F CLS COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISPLAY DRIVER DWN DWN PNK OPN WIRE ECU-DCC 2 FUSE ECU-IGR 2 FUSE EFI 1 FUSE ENGINE ROOM R/B 2 ENGINE STOP, START ECU GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGR 1 RELAY ENERGIZED HOT W/ IGR 2 RELAY ENERGIZED IGR INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT FRONT DOOR LOCK W/ MOTOR ASSEMBLY MAIN BODY ECU MAP LIGHT SUB-ASSEMBLY METER-IGR FUSE OPN PNK WIRE PPL RED WIRE RIGHT END OF DASH) RIGHT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY S/ROOF FUSE SLIDING ROOF CONTROL ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) VIO WIRE W/ DOOR CLOSER (FRONT, REAR) W/ STOP/ START SYSTEM W/O DOOR CLOSER (FRONT, REAR) W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER

BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ECU- DCC 1 FUSE ECU-ACC FUSE ECU-B FUSE ECU-IGR FUSE EFI 1 FUSE ENGINE ROOM R/B 2 ENGINE STOP, START ECU GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED HOT W/ IGR 2 RELAY ENERGIZED IGR LEFT OCCUPANT DETECTION SENSOR (UNDER LEFT REAR SEAT) LT BLU WIRE LUGGAGE ROOM R/B 1 MAIN BODY ECU ORG/ WIRE POWER DISTRIBUTION BOX ASSEMBLY PPL PPL/BLK WIRE PPL/BRN WIRE PPL/ORG WIRE PPL/RED WIRE PPL/VIO WIRE REAR POWER SEAT SWITCH RED WIRE RIGHT END OF DASH) RIGHT PNEUMATIC VALVE CONTROL ECU (RIGHT REAR SEAT CUSHION SPRING) RIGHT REAR SEAT CUSHION AIR BAG ASSEMBLY RLSS RRSS SYSB VIO WIRE W/ STOP/ START SYSTEM W/O STOP/ START SYSTEM WHT WIRE WHT/BLK WIRE

BD (RIGHT FRONT OF ENGINE COMPT) BG (RIGHT REAR OF ENGINE COMPT) BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CXPI ECU-B 4 FUSE ECU-DCC 2 FUSE ECU-IGR 1 FUSE ECU-IGR 2 FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGR 1 RELAY ENERGIZED HOT W/ IGR 2 RELAY ENERGIZED IGR LEVEL WARNING SWITCH ASSEMBLY LT GRN WIRE MAIN BODY ECU MAP LIGHT ASSEMBLY MPX PNK WIRE POWER DISTRIBUTION BOX ASSEMBLY PPL PPL/BLK WIRE PPL/BLU WIRE QD (RIGHT "D" PILLAR) RAIN SENSOR (FRONT CENTER OF ROOF) REAR WIPER MOTOR ASSEMBLY RED WIRE RIGHT END OF DASH) RWRY SEMICONDUCTOR POWER INTEGRATION ECU SIG WHI WHT WIRE WHT/BLK WIRE WIPER RR FUSE WPS