Lexus LS IV (2006-2012) main body ecu (left end of dash) Wiring diagrams

18 19 CANN CANP 25 24 CANP CANN 4- SEATER 5- SEATER 9 10 CANP CANN ACCD BLK WIRE BLK/ WHT WIRE BLU WIRE CANH CANL HZSW TACH SPD CANN CANP D-ACC FUSE DCTY SWIL TSW DOOR LOCKS SYSTEM DOOR LOCKS SYSTEM INTERIOR LIGHTS SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) DRIVING SUPPORT ECU (LEFT KICK PANEL) FSPT FUSE GRN WIRE HAZ CANN CANP HDLC HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IG GSW LCTY INTERIOR LIGHTS SYSTEM DOOR LOCKS SYSTEM LEFT FRONT DOOR CONTROL ECU (DRIVER'S DOOR) LEFT FRONT POWER SEAT CONTROL ECU, SWITCH (UNDER DRIVER'S SEAT) LEFT REAR DOOR CONTROL ECU (LEFT REAR DOOR) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) ORG/ WIRE PNK INDW INDS WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWER TRUNK LID CONTROL ECU (IF EQUIPPED) (LEFT SIDE OF LUGGAGE COMPT) REAR CONSOLE SWITCH REAR JUNCTION BLOCK ECU (LEFT SIDE OF LUGGAGE COMPT) RED WIRE SHIFT INTERLOCK SYSTEM SLP SLR+ FUSW STARTING/CHARGING SYSTEM STR+ SUPPLEMENTAL RESTRAINTS SYSTEM TMSW TRNL TRNR TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE WHT WIRE WHT/BLK WIRE WIPER/WASHER SYSTEM

13 22 CANH CANL 22 21 CANL CANH 25 26 CANL CANH ACAN ACCR BLK WIRE BLU WIRE BRN WIRE CANN CANP CENTER AIR BAG ECU (UNDER CENTER CLTE CLTS CLTB PCTY DISPLAY, NAVIGATION MODULE DISPLAY ENGINE CONTROLS SYSTEM FLOOR CONSOLE) FRONT CONTROLLER (RIGHT FRONT OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HZCT INTEGRATION CONTROL, PANEL ASSEMBLY MAIN BODY ECU (LEFT END OF DASH) NAVIGATION SYSTEM ORG/ WIRE PASSENGER SIDE J/B (RIGHT END OF DASH) PKBO PNK WIRE POWER DISTRIBUTION SYSTEM POWER DISTRIBUTION SYSTEM ENGINE CONTROLS SYSTEM STARTING/CHARGING SYSTEM RCTY PANL RED WIRE RIGHT FRONT POWER SEAT CONTROL ECU, SWITCH (UNDER FRONT PASSENGER'S SEAT) RIGHT REAR DOOR CONTROL ECU (INSIDE RIGHT REAR DOOR) STSW SKSW PNK WIRE TIRE PRESSURE WARNING ECU (RIGHT END OF DASH) VIO WIRE W/ MULTI DISPLAY W/O MULTI DISPLAY WHT WIRE

12 17 11 GND 29 13 14 15 16 23 24 26 1 27 MSWE 3 6 16 4 8 9 10 1 11 SIG BDR 5 6 15 16 CANH CANL CANN CANP 7 4 2 1 5 3 1 2 3 MMRY BCUT BLK WIRE BLU WIRE BRN WIRE CANP CANN GND CPUB CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL CIRCUIT D DOOR 1 FUSE D DOOR 2 FUSE DCTY DOOR LOCK SWITCH DOWN DRIVER SIDE J/B (LEFT END OF DASH) FUSE GRN/BLK WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES PASSENGER P D/C CUT FUSE SIDE J/B (RIGHT END OF DASH) LEFT FRONT POWER SEAT LIFT POSITION SENSOR (UNDER DRIVER'S SEAT) LEFT FRONT SEAT HEADREST ADJUSTER MOTOR (DRIVER'S SEAT BACK) LEFT FRONT SEAT MEMORY SWITCH LOCK LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) MM MSW- MSW+ CPBJ MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY O/P ORG/ WIRE PNK ILL+ WIRE PNK WIRE RED WIRE RELAY ENERGIZED SET- SGND UNLOCK VCC VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 5 6 TRG- 24 6 18 19 17 16 15 14 25 DCTY 5 6 15 16 9 CANH CANL CANN CANP SPD 6 22 15 23 5 25 11 17 14 ALTB BDR BDRJ BLK WIRE BLU WIRE BRN WIRE CANN CANP CGBI CGBO CLGI CLGO COMPUTER DATA COMPUTER DATA LINES SYSTEM CPSE CPUB D-ACC FUSE DLE DRIVER SIDE J/B (LEFT END OF DASH) FUSE GRN WIRE H/FU HNDL HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IG STP INDS INDW SWIL PNK WIRE INIT INSTRUMENT CLUSTER SYSTEM J/B 4 (RIGHT SIDE OF DASH) LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT REAR DOOR COURTESY SWITCH (LEFT "C" PILLAR) LINES SYSTEM LSW LSWE LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) ORG/ WIRE OSCB OSCE PCTY PML PMUL PNK WIRE POLE POWER WINDOWS) PWE PWS RCTY RED WIRE RIGHT FRONT DOOR CONTROL ECU (FRONT PASSENGER'S DOOR) RIGHT FRONT DOOR COURTESY SWITCH (RIGHT "B" PILLAR) RIGHT FRONT DOOR OUTSIDE HANDLE (FRONT PASSENGER'S DOOR) RIGHT REAR DOOR COURTESY SWITCH (RIGHT "C" PILLAR) SEL SEL CLGB SENS GND PNK WIRE SENS SHIFT INTERLOCK SYSTEM SID- SIDI SIG SLP SLR+ STOP STOP FUSE STOP LIGHT SWITCH (LEFT SIDE OF DASH) SYSTEM TRG+ TRG- CLG TRNL TRNR LCTY VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

12 17 1 MJ 15 16 CANN CANP 2 8 1 7 5 6 IG 6 5 3 CLTB CLTS CLTE 7 1 4 +B 7 21 18 19 20 RCTY PCTY CLTE CLTS CLTB AUTOMATIC HIGH BEAM SENSOR LIN AUTOMATIC LIGHT CONTROL SENSOR (CENTER OF DASH) BLK WIRE BLU WIRE BRN WIRE CAN I/F CAN I/F CANL CANH CANN CANP CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM COURTESY SWITCH D MPX-B 2 FUSE DCTY DIMMER SWITCH DRIVER SIDE J/B (LEFT END OF DASH) ENGINE ROOM FOG SWITCH HEADLIGHT DIMMER SWITCH FRONT FOG IND FUSE GRN WIRE GRY WIRE HEAD AUTO HEAD CANP CANN PNK WIRE HEAD IND (USA) HIGH HIGH MASTER BEAM BEAM IND IND AUTO IND HIGH LOW FLASH HOT AT ALL TIMES HOT IN ON OR START HYBRID VEHICLE CONTROL ECU (LEFT FRONT OF ENGINE COMPT) IG 5 17 INNER REAR VIEW MIRROR ASSEMBLY (W/ AUTOMATIC HIGH BEAM SYSTEM) J/C LCTY LEFT REAR DOOR COURTESY SWITCH (LEFT "C" PILLAR) LIGHT CONTROL SWITCH LOW FLASH LT BLU WIRE LUGGAGE ROOM J/B MAIN BODY ECU (LEFT END OF DASH) MICRO COMPUTER MPX+B MPX+B MPXB OFF TAIL ORG/ WIRE OVERHEAD MODULE (ROOF CONSOLE) P-D/C CUT FUSE P-J/B J/B 2 (RIGHT SIDE OF ENGINE COMPT) FUSE PARK/NEUTRAL POSITION SWITCH (RIGHT SIDE OF TRANSMISSION) PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE POWER SUPPLY RED WIRE RIGHT FRONT DOOR COURTESY SWITCH (RIGHT "B" PILLAR) RIGHT REAR DOOR COURTESY SWITCH (RIGHT "C" PILLAR) RR ECU-B FUSE VIO WIRE WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

2 3 CANP CANN 20 21 22 23 CANH CANL CANP CANN 25 24 CANP CANN 27 28 CANP CANN 28 20 CANN CANP 4- SEATER 5 14 CANP CANN 5 6 16 15 CANH CANL CANP CANN 5 6 CANP CANN 5- SEATER 9 10 CANN CANP 9 10 CANP CANN BLK WIRE BRN WIRE CANH(OR)CANP CANL(OR)CANN CANN CANP CERTIFICATION ECU (LEFT END OF DASH) COMBINATION METER DRIVING SUPPORT ECU (LEFT KICK PANEL) GRN WIRE LEFT FRONT DOOR CONTROL ECU (DRIVER'S DOOR) LEFT FRONT POWER SEAT CONTROL ECU, SWITCH (UNDER DRIVER'S SEAT) LEFT REAR DOOR CONTROL ECU (LEFT REAR DOOR) MAIN BODY ECU (LEFT END OF DASH) MPX MULTIPLEX TILT, TELESCOPIC ECU (ON STEERING COLUMN) OUTER MIRROR SWITCH ASSEMBLY POWER TRUNK LID CONTROL ECU (LEFT SIDE OF LUGGAGE COMPT) REAR CONSOLE SWITCH REAR JUNCTION BLOCK ECU (LEFT SIDE OF LUGGAGE COMPT) RED WIRE SPIRAL CABLE (IN STEERING COLUMN) STEERING ANGLE SENSOR WHT BLK (OR RED) WIRE WHT WIRE WINDSHIELD WIPER SWITCH

12 13 CANH CANL 13 22 CANH CANL 15 14 CANH CANL 21 20 CANL CANH 3 4 CANH CANL 6 5 CANL CANH A/C AMPLIFIER (CENTER OF DASH) AFS ECU (RIGHT KICK PANEL) AIR PBEW DR ARON BLK WIRE BLK/WHT WIRE BLU WIRE CANL CANH CENTER AIR BAG ECU (UNDER CENTER FLOOR CONSOLE) COMBINATION METER CONSOLE SWITCH DLC 3 (LEFT SIDE OF DASH) DRIVER SIDE J/B (LEFT END OF DASH) ELECTRIC POWER CONTROL ECU ENGINE CONTROL MODULE FRONT PASSENGER'S SEAT BELT WARNING LIGHT FRONT PASSENGER'S SEAT RECLINING CONTROL SWITCH FRONT PASSENGER'S SEAT RECLINING CONTROL SWITCH (W/ 5-SEATER) FRONT PASSENGER'S SEAT SLIDE CONTROL SWITCH FRONT WIPER DEICER SWITCH FUSE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HILL HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INTEGRATION CONTROL, PANEL ASSEMBLY J/B 3 (RIGHT SIDE OF DASH) J/B 5 (LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) P-ACC FUSE PASSENGER AIR BAG ON/OFF INDICATOR PASSENGER SIDE J/B (RIGHT END OF DASH) PNK TC WIRE PNK WIRE RADIO 1 FUSE RADIO RECEIVER ASSEMBLY REAR DOOR SUNSHADE SWITCH REAR SEAT CLIMATE CONTROL SWITCH IND REAR SEAT REAR SUNSHADE SWITCH HEATER SWITCH REAR SUNSHADE SWITCH REAR WINDOW DEFOGGER SWITCH RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT END OF DASH) SKID CONTROL ECU SUPPLEMENTAL RESTRAINTS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM WARNING SYSTEMS INTERIOR LIGHTS SYSTEM VIO WIRE W/O MULTI DISPLAY WHT/BLK WIRE YEL WIRE

12 13 CANH CANL 13 22 CANH CANL 15 14 CANH CANL 21 20 CANL CANH 3 4 CANH CANL 6 5 CANL CANH 9 10 TX+ TX- A/C AMPLIFIER (CENTER OF DASH) AFS ECU (RIGHT KICK PANEL) AIR PBEW DR ARON BLK WIRE BLK/WHT WIRE BLU WIRE CANL CANH CENTER AIR BAG ECU (UNDER CENTER FLOOR CONSOLE) COMBINATION METER CONSOLE SWITCH DLC 3 (LEFT SIDE OF DASH) DRIVER SIDE J/B (LEFT END OF DASH) ELECTRIC POWER CONTROL ECU ENGINE CONTROL MODULE FRONT PASSENGER'S SEAT BELT WARNING LIGHT FRONT WIPER DEICER SWITCH FUSE GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HILL HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INTEGRATION CONTROL, PANEL ASSEMBLY J/B 3 (RIGHT SIDE OF DASH) J/B 5 (LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) P-ACC FUSE PASSENGER AIR BAG ON/OFF INDICATOR PASSENGER SIDE J/B (RIGHT END OF DASH) PNK TC WIRE PNK WIRE RADIO 1 FUSE RADIO RECEIVER ASSEMBLY REAR DOOR SUNSHADE SWITCH REAR SEAT CLIMATE CONTROL SWITCH REAR SEAT CLIMATE CONTROL SWITCH IND REAR SEAT HEATER SWITCH REAR SEAT CLIMATE CONTROL SWITCH REAR SEAT RETURN SWITCH REAR SUNSHADE SWITCH REAR WINDOW DEFOGGER SWITCH RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT END OF DASH) SKID CONTROL ECU SUPPLEMENTAL RESTRAINTS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM WARNING SYSTEMS INTERIOR LIGHTS SYSTEM VIO WIRE W/O MULTI DISPLAY WHT/BLK WIRE

1 2 3 4 5 6 7 8 AGND VV+ VAR+ VAL+ SG VV- VA- ADPG 2 4 1 3 CV+ CB+ CV- CGND 28 20 CANN CANP 31 32 TX+ TX- 6 5 CANL CANH AGND ALO ARO ARON AIR ASGN AUXO BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM REAR SEAT DISPLAY, NAVIGATION MODULE DISPLAY ENTERTAINMENT CIRCUIT GRN WIRE IEEE IEEE CONNECTOR (LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) MULTI-MEDIA MODULE NAVIGATION ASSEMBLY (W/ DVD) (RIGHT SIDE OF DASH) NCA WIRE NTSC VV+ NTSO V+ CA+ ORG/ WIRE PARKING ASSIST ECU (RIGHT END OF DASH) PKBO PNK WIRE REAR JUNCTION BLOCK ECU REAR SEAT ENTERTAINMENT CIRCUIT RED WIRE SG VV- SGND STEREO JACK ADAPTER 1 SUPPLEMENTAL RESTRAINTS SYSTEM TELEVISION CAMERA (CENTER REAR OF LUGGAGE COMPT LID) UDI- UDO+ UESG UJSG ULO+ UPI UPO URO+ V- CGND VGN VIO WIRE VLI VRI W/ HDD WHT WIRE YEL WIRE

A/F FUSE A/F RELAY ACCR BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) EFI FUSE EFI-B FUSE ELECTRIC POWER CONTROL ECU (RIGHT END OF DASH) ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 2 (RIGHT SIDE OF ENGINE COMPT) FUSE GRN WIRE HOT AT ALL TIMES VVT FUSE HOT IN ON OR START E/G RM- J/B 4 (RIGHT SIDE OF DASH) MAIN BODY ECU (LEFT END OF DASH) NCA WIRE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE RED WIRE SKSW STARTING/ CHARGING SYSTEM STOP LIGHT SWITCH (LEFT SIDE OF DASH) STR+ STSW TACH VIO WIRE VVT LH RELAY VVT RH RELAY WHT WIRE WHT/BLK WIRE YEL WIRE