Lexus LS IV (2006-2012) power supply Wiring diagrams

20 21 COMPUTER DATA LINES SYSTEM 30 24 23 SHRL 7 1 2 8 6 5 HEAD AIR SUSPENSION CONTROL ECU (RIGHT END OF DASH) ASF OFF IND BLK WIRE BLU WIRE BRN WIRE CANN CANP PNK WIRE CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM D MPX-B 2 FUSE DRIVER SIDE J/B (LEFT END OF DASH) E/G ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) FMIG HEAD FUSE GRN WIRE GRY WIRE HEAD AUTO HEAD LIGHT SWIVEL MAIN SWITCH HEADLAMP LEVELING MOTOR HEADLAMP SWIVEL MOTOR HEADLIGHT DIMMER SWITCH ASSEMBLY HEADLIGHT SWIVEL ECU ASSEMBLY (RIGHT KICK PANEL) HOT AT ALL TIMES HOT IN ON OR START LED DRIVER HEADLAMP MODULE SWIVEL MOTOR LED DRIVER MODULE LEFT FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY (INSIDE LEFT FRONT WHEELWELL) LEFT HEADLIGHT ASSEMBLY LEFT REAR HEIGHT CONTROL SENSOR LH E LH- RH- SML LH+ LHM+ LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE MASTER IND MOCRO COMPUTER MPXB MSW MULTIPLEX NETWORK FRONT LIGHT ECU (RIGHT FRONT OF ENGINE COMPT) OFF TAIL ORG/ WIRE P-D/C (RIGHT END CUT OF DASH) FUSE P-J/B FUSE PASSENGER SIDE J/B PASSENGER SIDE J/B (RIGHT END OF DASH) PNK INL INR WIRE PNK WIRE POWER SUPPLY RED WIRE RH E RHM + RIGHT HEADLIGHT ASSEMBLY SGR SHB SHFL SHFL SBR SHRL SHG SHRL SMBL SMBR SMGL SMGL SMGR SMGR SML SMR SMR RH+ CANH CANL IGS IG PNK WIRE VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

ABS MAIN 2 FUSE ABS MTR 2 FUSE BLK WIRE BLU WIRE BRAKE HOLD IND BRN WIRE BUZZER COMBINATION METER COMPUTER DATA LINES SYSTEM ECU-IG FUSE ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 3 ABS MTR 2 RELAY FLA- FLA+ FL+ FL- PNK WIRE FLR+ FLR- GRN WIRE GRY WIRE HOLD IND HOT AT ALL TIMES HOT IN ON OR START I/F I/F LEFT FRONT SPEED SENSOR LT GRN WIRE MASTER IND MICRO COMPUTER ORG/ WIRE P-J/B FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PFL PNK WIRE POWER SUPPLY PRR- RED WIRE RIGHT REAR SPEED SENSOR RR+ RR- CANH CANL RRA- RRA+ RRR+ RRR- PNK WIRE SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+BC ABS IND. ABS MAIN 2 FUSE ABS MAIN 4 FUSE ABS MTR 2 FUSE BLK WIRE BLU WIRE BRAKE CONTROL POWER SUPPLY (RIGHT REAR OF LUGGAGE COMPT) BRAKE IND BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM CONTROLLED ELECTRONICALLY ECU-IG FUSE ENA ENGINE ABS ROOM MTR 2 R/B 3 RELAY ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) FAIL FLA- FLA+ FL+ FL- PNK WIRE FLR+ FLR- FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START INDICATOR SWITCH (RIGHT REAR WHEEL HUB ASSEMBLY) LEFT FRONT SPEED SENSOR LEFT FRONT SPEED SENSOR/ LEFT FRONT PAD WEAR INDICATOR SWITCH LT GRN WIRE LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MASTER IND MICRO COMPUTER ORG/ WIRE P-J/B FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PFL PNK WIRE POWER SUPPLY PRR- RED WIRE RIGHT REAR HEIGHT CONTROL SENSOR/ RIGHT REAR SPEED SENSOR/ RIGHT REAR PAD WEAR RIGHT REAR SPEED SENSOR RR+ RR- CANH CANL RRA- RRA+ SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) SLIP IND STP TS 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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 IG 14 13 PNK WIRE 4 2 1 5 3 CV+ CGND CB+ CV- LS 5 2 3 4 IGB SGND BLK WIRE BLU WIRE BRN WIRE CANN CANP CB+ CCHG CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) CGND CANH COMPUTER DATA LINES SYSTEM COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CV+ CV- CANL D MPX-B 2 FUSE DRIVER MONITOR CAMERA (LEFT SIDE OF DASH) DRIVER MONITOR ECU ASSEMBLY (LEFT END OF DASH) DRIVER SIDE J/B (LEFT END OF DASH) DRIVING SUPPORT ECU ASSEMBLY (LEFT KICK PANEL) ENGINE ROOM J/B 2 FCAS FUSE GND SGND CCS GRN WIRE HOT AT ALL TIMES HOT IN ON OR START IGB LS CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) LT GRN WIRE MASTER MICRO COMPUTER MILLIMETER WAVE RADAR SENSOR ASSEMBLY (CENTER OF FRONT GRILLE) MPX+B IND NCA WIRE ORG/ WIRE P J/B (RIGHT SIDE OF FUSE ENGINE COMPT) PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE POWER SUPPLY PRE-COLLISION SYSTEM CANCEL SWITCH ASSEMBLY RED WIRE STP+ VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 M- M+ 1 2 TGND 10 6 5 VT TSEN AUTO BLK WIRE BLU WIRE BRN WIRE CAN I/F CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) E PKB FUSE ELECTRIC PARKING BRAKE SWITCH ASSEMBLY EPB FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) RR ECU B FUSE HOT IN ON OR START ENGINE ROOM P-J/B FUSE J/B 2 (RIGHT SIDE OF ENGINE COMPT) HOT W/ IG AUTO ILL ILL IND IND JUNCTION LPA TX +B LT GRN WIRE MPX-B 1 FUSE NCA WIRE ORG/ WIRE PARKING BRAKE ACTUATOR ASSEMBLY (LEFT SIDE OF LUGGAGE COMPT) PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE POWER SUPPLY PULL PUSH RED WIRE RELAY ENERGIZED TGND UART I/F VT TSEN WHT WIRE WHT/BLK WIRE YEL WIRE

+B PGND 1 2 3 4 5 6 7 8 9 10 MOR- MOR+ MOL+ MOL- 1 2 3 4 5 6 7 8 CAN H CAN L 20 21 18 COMPUTER DATA LINES SYSTEM ES 36 26 6 IGB SGND FCAS 9 8 CANH CANL BLK WIRE BLU WIRE BRN WIRE CANCEL SWITCH ASSEMBLY CENTER DRIVER JUNCTION BOX 3 SIDE J/B (RIGHT SIDE (LEFT END OF DASH) OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM DRIVING SUPPORT ECU ASSEMBLY (LEFT KICK PANEL) ENGINE ROOM J/B 2 (RIGHT SIDE OF LUGGAGE COMPT) FUSE GRN WIRE HOT AT ALL TIMES LUGGAGE ROOM J/B PSB FUSE (LEFT SIDE OF LUGGAGE COMPT) HOT W/ HOT W/ RR J/C LEFT FRONT PRE-COLLISION SEAT BELT MOTOR (BASE OF LEFT "B" PILLAR) MICRO COMPUTER MILLIMETER WAVE RADAR SENSOR ASSEMBLY (CENTER OF FRONT GRILLE) P-J/B FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PCS IND POWER SUPPLY PRE-COLLISION SYSTEM RED WIRE RIGHT FRONT PRE- COLLISION SEAT BELT MOTOR SEAT BELT CONTROL ECU (LEFT SIDE OF LUGGAGE COMPT) SGND IGB SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE

11 12 13 14 FSR+ FSR- BSW BGND 13 22 CANH CANL 22 16 FSR- FSR+ AIR BAG ECU ASSEMBLY (UNDER CENTER FLOOR CONSOLE) BLK WIRE BLU WIRE BRN WIRE BUCKLE SWITCH CAN I/F CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM DISPLAY, NAVIGATION MODULE DISPLAY DRIVER'S SEAT BELT IND FRONT PASSENGER'S SEAT BELT WARNING LIGHT FUSE GRN WIRE HOT AT ALL TIMES DRIVER SIDE J/B (LEFT END OF DASH) D MPX-B 1 FUSE HOT IN ON OR START LEFT FRONT SEAT INNER BELT SWITCH (UNDER DRIVER'S SEAT) LT BLU WIRE MICRO COMPUTER OCCUPANT DETECTION ECU (UNDER FRONT PASSENGER'S SEAT) P-J/B FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PBEW PNK WIRE POWER SUPPLY RED WIRE RIGHT FRONT SEAT INNER BELT ASSEMBLY SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 USB USBG VOT+ USBV VOT- VOR- VOR+ 20 21 18 COMPUTER DATA LINES SYSTEM I/F 4 10 FR+ FR- 7 2 TMUT SPD ANTENNA ANTENNA BLK WIRE BLU WIRE BRN WIRE CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM DCM DCM (TELEMATICS TRANSCEIVER) (RIGHT END OF DASH) DISPLAY, NAVIGATION MODULE DISPLAY DRIVER SIDE J/B (LEFT END OF DASH) ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) GRN WIRE GSW HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IGN FUSE INSTRUMENT CLUSTER SYSTEM LT BLU WIRE LT GRN WIRE MASTER IND MICRO COMPUTER MICROPHONE, MICROPHONE AMPLIFIER MIN MPXB MUTE MCO+ MCO- NCA WIRE ORG/ WIRE OVERHEAD MODULE (ROOF CONSOLE) P-ACC FUSE P-J/B FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE POWER SUPPLY RADIO 1 FUSE RED WIRE RIGHT FRONT SPEAKER ASSEMBLY 2 SGND SGND MCVD MCI+ MCI- SIG PNK (+) WIRE SOS SWITCH SPDP SPO+ SPO- PNK WIRE STEREO COMPONENT AMPLIFIER ASSEMBLY (RIGHT REAR OF LUGGAGE COMPT) SUPPLEMENTAL RESTRAINTS SYSTEM TELEPHONE ANTENNA ASSEMBLY (FRONT OF CENTER CONSOLE) UGND USBV VIO WIRE VOR- VOT+ WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 7 8 9 10 11 12 IG 22 23 CANP CANN BLK WIRE BLU WIRE BRN WIRE CANN CANP GND INSW RDA CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM FUSE HOT AT ALL TIMES DRIVER SIDE J/B (LEFT END OF DASH) D MPX-B 2 FUSE HOT IN ON OR START MASTER IND MICRO COMPUTER P-J/B FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE POWER SUPPLY RED WIRE TIRE PRESSURE IND TIRE PRESSURE WARNING ANTENNA, RECEIVER (CENTER REAR OF ROOF) TIRE PRESSURE WARNING ECU (RIGHT END OF DASH) TIRE PRESSURE WARNING RESET SWITCH VIO WIRE WHT WIRE YEL WIRE