Lexus LS IV (2006-2012) computer data lines system Wiring diagrams

+BM BLK WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BRN WIRE CANN CANP CCHG COMPT) COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) DRIVING SUPPORT ECU ASSEMBLY (LEFT KICK PANEL) ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) FCAS FUSE GND SGND CCS GRN WIRE HOT IN ON OR START IGB IGB SGND LT BLU WIRE LT GRN WIRE MILLIMETER WAVE RADAR SENSOR ASSEMBLY (CENTER OF FRONT GRILLE) NCA WIRE ORG/ WIRE PNK WIRE PNK/BLU WIRE PRE-COLLISION SYSTEM CANCEL SWITCH ASSEMBLY RED WIRE RED/YEL WIRE STP+ THO SP THROTTLE BODY ASSEMBLY (ON THROTTLE BODY) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

ACCELERATOR POSITION SENSOR ASSEMBLY (LEFT SIDE OF DASH) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BRN WIRE C/OPN RELAY COMPUTER DATA LINES SYSTEM ECU-IG FUSE EFI MAIN 2 RELAY EFI MAIN EFI FUSE MAIN RELAY EFI- MAIN 2 FUSE ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 2 (RIGHT SIDE OF ENGINE COMPT) ETCS FUSE GRN WIRE HOT AT ALL TIMES HOT IN ON OR START HYBRID VEHICLE CONTROL ECU (LEFT FRONT OF ENGINE COMPT) IGCT 1 FUSE LT GRN WIRE NCA WIRE ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (RIGHT SIDE OF TRANSMISSION) PNK WIRE PNK/BLU WIRE RED WIRE RED/YEL WIRE SFTD STPU THO VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BLOCK J/B 3 (RIGHT SIDE OF DASH) BLU WIRE BRN WIRE CENTER JUNCTION CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CRUISE CONTROL MAIN SWITCH ASSEMBLY DRIVER SIDE J/B (LEFT END DRIVER SIDE J/B (LEFT END OF DASH) ENGINE CONTROLS SYSTEM ENGINE ROOM R/B 2 (RIGHT SIDE OF ENGINE COMPT) FUSE GRN WIRE HOT IN ON OR START IGCT 2 FUSE IGCT 2 RELAY IGCT RELAY J/C LT GRN WIRE OF DASH) ON- MODE OFF ORG/ WIRE RED WIRE SFTD SFTU SPIRAL CABLE SUB-ASSEMBLY (IN STEERING COLUMN) STEERING PAD SWITCH ASSEMBLY W/ MODULATOR STEERING SWITCH ECU VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

14 13 PNK WIRE 16 15 11 10 FL+ FL- RR+ RR- BLK WIRE BLU WIRE BRN WIRE 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) ENGINE GRN WIRE HOT AT ALL TIMES HOT IN ON OR START LEFT FRONT SPEED SENSOR LEFT REAR SPEED SENSOR MICRO COMPUTER ORG/ WIRE P-D/C CUT FUSE P-J/B ROOM J/B 2 FUSE (RIGHT SIDE OF ENGINE COMPT) PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE POWER SUPPLY RED WIRE RIGHT FRONT SPEED SENSOR RIGHT REAR SPEED SENSOR RL- RL+ FR- FR+ SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) STOP FUSE STOP LIGHT SWITCH ASSEMBLY (LEFT SIDE OF DASH) VIO WIRE W/ VEHICLE DYNAMICS INTEGRATED MANAGEMENT W/O VEHICLE DYNAMICS INTEGRATED MANAGEMENT WHT WIRE WHT/BLK WIRE YEL WIRE

1 2 3 4 5 6 TRG- 24 6 18 19 17 16 15 14 25 DCTY 5 6 15 16 9 14 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 CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CGBI CGBO CLGI CLGO COMPUTER DATA COMPUTER DATA LINES SYSTEM CPUB D-ACC FUSE DLE DOOR DRIVER SIDE J/B (LEFT END OF DASH) FUSE GRN WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START IG STP INDS INDW SWIL PNK WIRE INSTRUMENT CLUSTER SYSTEM EXTERIOR LIGHTS SYSTEM LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT REAR DOOR COURTESY SWITCH (LEFT "C" PILLAR) LINES SYSTEM LOCK LSW LSWE LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) ORG/ WIRE OSCB OSCE PCTY PML PMUL PNK WIRE POWER WINDOWS) PWE PWS RCTY RED WIRE RIGHT FRONT CONTROL SWITCH ASSEMBLY RIGHT FRONT DOOR COURTESY SWITCH (RIGHT "B" PILLAR) RIGHT FRONT DOOR OUTSIDE HANDLE (FRONT PASSENGER'S DOOR) RIGHT FRONT DOOR W/ MOTOR LOCK ASSEMBLY (FRONT PASSENGER'S RIGHT FRONT MULTIPLEX NETWORK DOOR ECU (FRONT PASSENGER'S DOOR) RIGHT REAR DOOR COURTESY SWITCH (RIGHT "C" PILLAR) RIGHT SECURITY INDICATOR SEL SEL CLGB SENS GND PNK WIRE SENS SHIFT INTERLOCK SYSTEM SID- SIDI SIG SLP SLR+ STOP FUSE SYSTEM TRG+ TRG- CLG TRNL TRNR LCTY UNLOCK UNLOCK DETECTION SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

AGND ANTENNA COIL ASEL RDA RSSI AGND BLK WIRE BLU WIRE BZRG CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CERTIFICATION ECU ASSEMBLY (LEFT END OF DASH) CODE COMPUTER DATA LINES SYSTEM CUTB DRIVER SIDE J/B (LEFT END OF DASH) GRN WIRE HOT AT ALL TIMES INDOOR LUGGAGE ELECTRICAL KEY OSCILLATOR INDS INDW LT GRN WIRE ORG/ WIRE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK PNK WIRE PNK WIRE POWER SWITCH RED WIRE SECURITY FUSE SWIL TXCT TXCT CODE LIN VIO WIRE WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER CONTROLLER (LEFT SIDE OF DASH) YEL WIRE

15 16 CANN CANP 6 5 4 3 2 1 PB FRWA BLK WIRE BLU WIRE CANN CANP CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) E/G ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) FRWA FUSE FUSIBLE LINK BLOCK ASSEMBLY 1 (RIGHT REAR OF ENGINE COMPT) GRY WIRE H-LP CLN FUSE HDLC HDLO HEAD HEAD AUTO HEADLAMP CLEANER SWITCH LIGHT CONTROL RHEOSTAT HEADLIGHT CLEANER MOTOR, PUMP ASSEMBLY (BELOW LEFT HEADLIGHT) HEADLIGHT CLEANER RELAY (BELOW LEFT HEADLIGHT) HEADLIGHT DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT IN ON OR START LIGHT CONTROL SWITCH MAIN BODY ECU (LEFT END OF DASH) MULTIPLEX NETWORK FRONT LIGHT ECU (RIGHT FRONT OF ENGINE COMPT) OFF TAIL ORG/ WIRE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK 5 6 7 8 CANP CANN HEAD WIRE RED WIRE RED/BLK WIRE VIO WIRE WASHER SWITCH WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY 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 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

1 4 3 ES SIG MPX 2 14 1 9 8 17 WIG 3 4 CANP CANN ASSEMBLY (WASHER FLUID RESERVOIR) BLK WIRE BLU WIRE BRN WIRE CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) FUSE GRN WIRE HOT AT ALL TIMES HOT IN ON OR START IG CANP CANN PNK COMPUTER DATA LINES SYSTEM WIRE LEVEL WARNING SWITCH SCR+ LIN LT GRN WIRE MIST OFF AUTO LO MULTIPLEX NETWORK FRONT LIGHT ECU (RIGHT FRONT OF ENGINE COMPT) P-D/C CUT FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE RAIN SENSOR (TOP CENTER OF WINDSHIELD) RED WIRE S/M +2 S/S W+ VIO WIRE WASHER SWITCH WHT WIRE WHT/BLK WIRE WINDSHIELD WASHER MOTOR, PUMP ASSEMBLY (WASHER FLUID RESERVOIR) WINDSHIELD WIPER MOTOR ASSEMBLY (LEFT REAR OF ENGINE COMPT) WINDSHIELD WIPER SWITCH ASSEMBLY WIP FUSE WIPER SWITCH