Lexus LS IV (2006-2012) main body ecu Wiring diagrams

10 22 7 6 LED+ LED- CYL CTYB 3 11 6 16 9 10 SIG CPUB BDR 6 3 11 BDR SIG CPUB 9 10 CANP CANN BCUT BDR BLK WIRE BLU WIRE CANN CANP CANP CANN CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CPUB CTYB CTYB CYL LED- LED+ CYL D RR DOOR FUSE D-ACC FUSE DCTY DOOR 1 FUSE DOOR 1 FUSE MPX-B FUSE DOOR 2 FUSE DOOR ECU (FRONT PASSENGER'S DOOR) DRIVER SIDE J/B DRIVER SIDE J/B (LEFT END FSPT FUSE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START HTR L/P LCTY LED LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT FRONT MULTIPLEX NETWORK DOOR ECU (DRIVER'S DOOR) LEFT OUTER REAR VIEW MIRROR (AT MIRROR) LEFT REAR DOOR COURTESY LIGHT ASSEMBLY LEFT REAR DOOR COURTESY SWITCH (LEFT "C" PILLAR) LEFT REAR DOOR INSIDE HANDLE ILLUMINATION LIGHT ASSEMBLY LEFT REAR MULTIPLEX NETWORK DOOR ECU (LEFT REAR DOOR) LT GRN WIRE MAIN BODY ECU OF DASH) ORG/ WIRE OUTER FOOT LIGHT P RR DOOR FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PCTY RCTY RED WIRE RIGHT FRONT DOOR COURTESY LIGHT RIGHT FRONT DOOR COURTESY SWITCH (RIGHT "B" PILLAR) RIGHT FRONT DOOR INSIDE HANDLE ILLUMINATION LIGHT ASSEMBLY RIGHT FRONT MULTIPLEX NETWORK RIGHT OUTER REAR VIEW MIRROR (AT MIRROR) RIGHT REAR DOOR COURTESY SWITCH (RIGHT "C" PILLAR) SIG VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 5 6 TSL TSR CLTE CLTS CLTB 6 5 8 CANN CANP PNK WIRE AIR CONDITIONING SYSTEM AUTO AUTOMATIC LIGHT CONTROL SENSOR (CENTER OF DASH) BLK WIRE BLU WIRE BRN WIRE CANN CANP CENTER JUNCTION BLOCK CENTER JUNCTION BLOCK J/B 4 CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) CLTB CLTE CLTS DCTY DRIVER SIDE J/B (LEFT END OF DASH) FLSW FRLY FUSE GRN WIRE GRY WIRE HAZARD WARNING SIGNAL SWITCH ASSEMBLY HEAD HEAD AUTO HEADLIGHT DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT AT ALL TIMES PASSENGER SIDE J/B (RIGHT END OF DASH) P-D/C CUT FUSE HOT IN ON OR ACC D ACC FUSE HZCT HZSW ILLUM J/B 3 (RIGHT SIDE OF DASH) LCTY LEFT LIGHT CONTROL SWITCH LJB LT BLU WIRE LT GRN WIRE MAIN BODY ECU OFF TAIL ORG/ WIRE PASSENGER SIDE J/B PCTY PNK WIRE RCTY RED WIRE RELAY ENERGIZED RIGHT RIGHT END OF DASH) TAIL TO DRIVER SIDE J/B (DIAGRAM 3 OF 3) TRNL TRNR TURN SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

A/C AMPLIFIER A/C INFRARED RAYS SENSOR AIR SUSPENSION CONTROL ECU BLK WIRE CENTER AIR BAG ECU CLOCK DRIVER MONITOR ECU COMBINATION METER D-ACC RELAY DCM (TELEMATICS TRANSCEIVER) DLC 3 FRONT CIGARETTE LIGHTER GLOVE BOX ILLUMINATION LIGHT ID CODE FLASHER BOX RELAY J/B 3 (RIGHT SIDE OF DASH) J/B 5 (LEFT SIDE OF DASH) LEFT VISOR LUGGAGE COMPT DOOR OPENER CANCEL SWITCH MAIN BODY ECU MULTIPLEX TILT, TELESCOPIC ECU OUTER MIRROR SWITCH ASSEMBLY OVERHEAD MODULE POWER CONSOLE TILT BOX MOTOR ILLUMINATION LIGHT POWER OUTLET PRE- ELECTRIC COLLISION PARKING SYSTEM BRAKE CANCEL SWITCH SWITCH REAR MAP LIGHT RELAY RIGHT LEFT FRONT FRONT SEAT SEAT CLIMATE CLIMATE CONTROL CONTROL SWITCH SWITCH RIGHT VISOR SHIFT LOCK CONTROL ECU SHORT CONNECTOR SHORT CONNECTOR (HEIGHT CONTROL) SLIDING ROOF CONTROL ECU SPIRAL CABLE STEERING ANGLE SENSOR STEERING LOCK ECU WHT WIRE WINDSHIELD WIPER SWITCH

1 2 3 4 5 6 7 8 B+ 33 32 IMO IMI BLK WIRE BLU WIRE CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) DRIVER SIDE J/B (LEFT END OF DASH) EFII EFIO HOT AT ALL TIMES ID CODE BOX (LEFT SIDE OF DASH) LIN MAIN BODY ECU ORG/ WIRE SECURITY FUSE STEERING LOCK ACTUATOR ECU (ON STEERING COLUMN) WHT/BLK WIRE

13 14 CANL CANH 18 34 27 VC NE- NE+ PNK WIRE 4 6 5 PNK WIRE BDCY BLK WIRE BLU WIRE BRN WIRE CANN CANP COMPUTER DATA LINES SYSTEM CRANKSHAFT POSITION SENSOR CUTD D-ACC FUSE DCM (TELEMATICS TRANSCEIVER) (RIGHT END OF DASH) DCTY DISP DISPLAY, NAVIGATION MODULE DISPLAY DRIVER SIDE J/B (LEFT END OF DASH) ELECTRIC POWER CONTROL ECU BCUT ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FRONT PAD WEAR INDICATOR SWITCH FUEL INJECTOR (DIRECT INJECTION 1) (LEFT SIDE OF INTAKE MANIFOLD) FUEL INJECTOR (PORT INJECTION 1) (LEFT SIDE OF INTAKE MANIFOLD) FUEL SENDER GAUGE (LEFT SIDE OF FUEL TANK) FUEL SENDER GAUGE (SUB) (RIGHT SIDE OF FUEL TANK) FUSE GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INJECTOR DRIVER (BANK 1) (CENTER REAR OF ENGINE COMPT) J/B 3 (RIGHT SIDE OF DASH) J/B 4 (RIGHT SIDE OF DASH) J/B 5 (LEFT SIDE OF DASH) LCTY LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT REAR DOOR COURTESY SWITCH (LEFT "C" PILLAR) LEFT REAR HEIGHT CONTROL SENSOR (RIGHT REAR WHEELWELL) LGLB LT BLU WIRE LT GRN WIRE LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MAIN BODY ECU MPXB NCA WIRE NE NE- VC PNK WIRE P-D/C CUT FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PCTY PIND PNK WIRE RCTY REAR JUNCTION BLOCK ECU REAR PAD WEAR INDICATOR SWITCH REAR SEAT ENTERTAINMENT TABLE SWITCH RED WIRE RESET+ RIGHT FRONT DOOR COURTESY SWITCH (RIGHT "B" PILLAR) RIGHT REAR DOOR COURTESY SWITCH (RIGHT "C" PILLAR) RL+ RL- 7 8 RR MPX B 1 FUSE RR MPX-B 2 FUSE SPDP STEERING PAD SWITCH STEERING PAD SWITCH W/ MODULATOR STEERING SWITCH ECU STEREO COMPONENT AMPLIFIER (RIGHT REAR OF LUGGAGE COMPT) TOP OF ENGINE) TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE W/ MULTI DISPLAY WHT WIRE WHT/BLK WIRE YEL WIRE

B/ANC FUSE BANC BES BLK WIRE BLU WIRE CANN CANP CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE COMPUTER DATA LINES SYSTEM D-ACC FUSE DBM+ DCTY DRIVER SIDE J/B (LEFT END OF DASH) FUSE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT HEIGHT ADJUSTABLE ANCHOR MOTOR (LEFT "B" PILLAR) LGLB LT GRN WIRE LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MAIN BODY ECU MPXB OF DASH) PBES PBM+ PSSE PVC REAR J/B ECU RED WIRE RIGHT HEIGHT ADJUSTABLE ANCHOR MOTOR (RIGHT "B" PILLAR) RR MPX B 1 FUSE RR MPX-B 2 FUSE VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 TIM- +B 1 2 3 4 5 6 TIM+ TIM- 27 1 26 SGND 29 24 23 MSWE MSW+ MSW- 9 10 1 CANP CANN GND ANT ASEL BCUT BDR BLK WIRE BLU WIRE CANL CANH CANP CANN CANP CANP VCI TIS IG ECUB TIM+ GND CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) CERTIFICATION ECU ASSEMBLY (LEFT END OF DASH) COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CONTROL CIRCUIT CPBJ D MPX-B 1 FUSE DATA DCTY DOOR 1 FUSE DOOR CONTROL RECEIVER (RIGHT REAR OF LUGGAGE COMPT) DOOR LOCK SWITCH DRIVER SIDE J/B (LEFT END OF DASH) ELECTRICAL KEY ANTENNA (RIGHT "C" PILLAR) FUSE GND VCI TIS GRN WIRE GRY WIRE HOT AT ALL TIMES LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT FRONT SEAT MEMORY SWITCH LOCK LT GRN WIRE MAIN BODY ECU MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY MULTIPLEX TILT, TELESCOPIC ECU (ON STEERING COLUMN) NCA WIRE ORG/ WIRE OUTSIDE LUGGAGE ELECTRICAL KEY ANTENNA (RIGHT SIDE OF REAR BUMPER) PNK ILL+ WIRE PNK WIRE POWER TILT MOTOR (ON STEERING COLUMN) RCO RED WIRE RELAY RSSI SET- SYSTEM TELESCOPIC MOTOR TELESCOPIC SENSOR TEM TI, TE FUSE TILT MOTOR TILT SENSOR UNLOCK VCE TES VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

ABS AIR CONDITIONING, SEATS, INTERIOR LIGHTS, POWER WINDOWS SYSTEMS AMP FUSE ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/WHT WIRE BLU WIRE CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CRUISE CONTROL, ANTI-LOCK BRAKES, ELECTRONIC POWER STEERING SYSTEMS DC- DOOR 1 FUSE DOOR 2 FUSE EFI EFI MAIN FUSE EFI MAIN RELAY ENGINE CONTROLS SYSTEM FROM FUSIBLE LINK BLOCK ASSEMBLY 1 (DIAGRAM 1 OF 6) FUSE GRY WIRE IGCT RELAY LGLB MAIN BODY ECU MPX-B FUSE MPXB NAVIGATION, SOUND SYSTEMS ORG/ WIRE P RR DOOR FUSE P-D/C CUT FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) POWER SWITCH PTC HTR 1 RELAY PTC HTR 1 FUSE PTC HTR 3 FUSE PTC HTR 3 RELAY RADIO 1 FUSE REAR JUNCTION BLOCK ECU RED WIRE RELAY RR MPX B 1 FUSE RR MPX-B 2 FUSE SEATS SYSTEM SEATS, NAVIGATION, INTERIOR LIGHTS, AIR CONDITIONING, DOOR LOCKS SYSTEMS SOUND SOUND SYSTEMS SYSTEMS TO ENGINE ROOM J/B 2 (DIAGRAM 5 OF 6) WHT WIRE WHT/BLK WIRE YEL WIRE

1 FUSE 2 FUSE 4 FUSE A/C FUSE ACCD AIR CONDITIONING NAVIGATION SYSTEM SYSTEM AIR SUS RELAY ANTI-LOCK BRAKES, CRUISE CONTROL SYSTEMS BLK WIRE BLU WIRE CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CRUISE CONTROL, SUPPLEMENTAL RESTRAINTS SYSTEMS D P/ SEAT FUSE D RR S/HTR FUSE D S/HTR FUSE D-ACC RELAY DEFOGGER SYSTEM ELECTRONIC SUSPENSION SYSTEM FROM FUSIBLE LINK BLOCK ASSEMBLY 1 (DIAGRAM 1 OF 6) FROM FUSIBLE LINK BLOCK ASSEMBLY 2 (DIAGRAM 1 OF 6) FROM SHORT CONNECTOR (CIGARETTE LIGHTER) (DIAGRAM 3 OF 6) FRONT CIGARETTE LIGHTER FRONT POWER FUSE GRN WIRE GRY WIRE INTERIOR LIGHTS, DEFOGGER, MEMORY, POWER WINDOWS, DOOR LOCKS, ANTI-THEFT SYSTEMS LT GRN WIRE MAIN BODY ECU MEMORY SYSTEMS NAVIGATION, SOUND, INSTRUMENT CLUSTER SYSTEMS (LEFT SIDE OF DASH) P ACC RELAY P CIG FUSE P RR S/HTR FUSE P-ACC FUSE PANEL RELAY PASSIVE RESTRAINT SYSTEM PNK WIRE POWER TOPS SYSTEM PWR OUTLET FUSE D ACC FUSE RELAY S/ROOF FUSE SEATS SYSTEM SHORT CONNECTOR (CIGARETTE LIGHTER) (LEFT CENTER OF DASH) SOCKET TO FRONT CIGARETTE LIGHTER (DIAGRAM 3 OF 6) TI&TE FUSE TO LUGGAGE ROOM J/B (DIAGRAM 4 OF 6) TO P S/HTR FUSE (DIAGRAM P/SEAT 1 4 OF 6) FUSE VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 18 6 11 3 10 9 GND 1 6 11 18 3 9 10 GND BDR CPUB 23 24 19 22 18 17 29 MSW- MSW+ 24 23 19 22 18 17 29 MSW+ MSW- BDR CPUB SIG CANN CANP BLK WIRE BLU WIRE BRN WIRE CANN CANP COMPUTER DATA LINES SYSTEM D RR DOOR FUSE D-ACC FUSE DRIVER SIDE J/B (LEFT END OF DASH) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START LCTY LEFT REAR DOOR COURTESY SWITCH (LEFT "C" PILLAR) LEFT REAR MULTIPLEX NETWORK DOOR ECU (LEFT REAR DOOR) LEFT REAR SEAT MEMORY SWITCH LT BLU WIRE LT GRN WIRE LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MAIN BODY ECU MPX MPX-B FUSE ORG/ WIRE OUTER MIRROR SWITCH ASSEMBLY P RR DOOR FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE RCTY RED WIRE RIGHT REAR DOOR COURTESY SWITCH (RIGHT "C" PILLAR) RIGHT REAR MULTIPLEX NETWORK DOOR ECU (RIGHT REAR DOOR) RIGHT REAR SEAT MEMORY SWITCH RR MPX-B 2 FUSE SET CAN IND MSWE SET- SIG CANP CANN WHT WIRE WHT/BLK WIRE YEL WIRE