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

1 3 6 11 9 10 GND SIG BDR CPUB CANP CANN 1 4 3 CLM+ CLM- DLSE 1 5 CLM+ CLM- 15 7 9 8 19 18 6 5 PNK CPSE POLE FULL STOP HNDL INIT WIRE 15 7 9 8 24 16 4 3 PNK CPSE POLE FULL STOP HNDL INIT WIRE BLK WIRE BLU WIRE CANP CANN COMPUTER DATA LINES SYSTEM D/C CUT FUSE DOOR 1 FUSE DOOR 2 FUSE FORMER POSITION SWITCH FORMER POSITION SWITCH DLSE FULL LATCH SWITCH POLE FUSE GND SIG BDR CPUB GRN WIRE GRY WIRE H/FU HANDLE SWITCH HANDLE SWITCH STOP TEMPORARY STOP SWITCH N/FU HOT AT ALL TIMES HOT IN ON OR START MPX-B FUSE ORG/ WIRE P RR DOOR FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK CPSE WIRE POLE SWITCH POLE SWITCH 6 8 POLE CPSE PNK WIRE RED WIRE RELAY ENERGIZED RIGHT FRONT DOOR W/ MOTOR LOCK ASSEMBLY (FRONT PASSENGER'S DOOR) RIGHT FRONT MULTIPLEX NETWORK DOOR ECU (FRONT PASSENGER'S DOOR) RIGHT REAR DOOR RIGHT REAR DOOR LOCK ASSEMBLY (RIGHT REAR DOOR) RIGHT REAR MULTIPLEX NETWORK DOOR ECU STOP SECONDARY/ FULL LATCH SWITCH TEMPORARY STOP SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

1 11 3 6 9 10 GND CPUB SIG BDR CANP CANN 1 4 3 CLM+ CLM- DLSE 1 5 CLM+ CLM- 15 7 9 8 19 18 6 5 PNK CPSE POLE FULL STOP HNDL INIT WIRE 15 7 9 8 24 16 4 3 PNK CPSE POLE FULL STOP HNDL INIT WIRE BLK WIRE BLU WIRE CANP CANN CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM D RR DOOR FUSE DOOR 1 FUSE DOOR 2 FUSE DRIVER SIDE J/B (LEFT END OF DASH) FORMER POSITION SWITCH FORMER POSITION SWITCH DLSE FUSE GND BCUT SIG BDR CPUB GRN WIRE GRY WIRE H/FU HANDLE SWITCH HANDLE SWITCH STOP TEMPORARY STOP SWITCH H/FU SECONDARY/ FULL LATCH SWITCH POLE HOT AT ALL TIMES LEFT FRONT DOOR W/ MOTOR LOCK ASSEMBLY (DRIVER'S DOOR) LEFT FRONT MULTIPLEX NETWORK DOOR ECU (DRIVER'S DOOR) LEFT REAR DOOR LOCK ASSEMBLY (LEFT REAR DOOR) LEFT REAR MULTIPLEX NETWORK DOOR ECU LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MPX-B 1 FUSE ORG/ WIRE PNK WIRE POLE SWITCH 6 8 POLE CPSE POLE SWITCH PNK CPSE WIRE RED WIRE RELAY ENERGIZED RR MPX-B 2 FUSE STOP SECONDARY/ FULL LATCH SWITCH TEMPORARY STOP SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

15 16 6 5 CANN CANP CANL CANH 2 3 4 5 6 +5 DATA ASEL RSSI GND 2 7 OPN CTY CLS +B FSW M+ M- 28 20 CANN CANP 4 17 PGND SG ASEL BLK WIRE BLU WIRE BRN WIRE CANN CANP CENTER JUNCTION BLOCK J/B 3 CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CERTIFICATION ECU ASSEMBLY (LEFT END OF DASH) COMPUTER DATA LINES SYSTEM D-ACC FUSE DATA LINES COMPUTER DOOR CONTROL RECEIVER (RIGHT REAR OF LUGGAGE COMPT) 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 LCTY LGLB LOPN LPSW PAWL LT BLU WIRE LUGGAGE COMPARTMENT DOOR LOCK CYLINDER (CENTER REAR OF LUGGAGE COMPT LID) LUGGAGE COMPARTMENT DOOR OPENING CANCEL SWITCH ASSEMBLY LUGGAGE DOOR CLOSER ASSEMBLY (CENTER REAR OF LUGGAGE COMPT LID) LUGGAGE DOOR OPENING SWITCH ASSEMBLY LUGGAGE ELECTRICAL KEY SWITCH (CENTER REAR OF LUGGAGE COMPARTMENT LID) LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MAIN BODY ECU MPXB PASSENGER SIDE J/B (RIGHT END OF DASH) POWER TRUNK LID CONTROL ECU (LEFT SIDE OF LUGGAGE COMPT) POWER TRUNK LID CONTROL SWITCH PTL FUSE REAR JUNCTION BLOCK ECU RED WIRE RED/BLK WIRE RR MPX B 1 FUSE RR MPX-B 2 FUSE RSSI SECURITY FUSE SYSTEM TKUL TMSW TSW VIO WIRE 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

27 28 29 30 -SR -SL +SR +SL ABFS AHL+ AIR AIR BAG ECU ASSEMBLY ARON BBL+ BBL- BBL+ BCL+ BLK WIRE BRN WIRE CANL PAON COMPUTER DATA LINES SYSTEM DISPLAY, NAVIGATION MODULE DIPLAY PASSENGER AIR BAG ON/OFF INDICATOR DK DK ENGINE ROOM J/B 2 (RIGHT SIDE FRONT PASSENGER SIDE SQUIB CIRCUIT SECOND STEP HOT IN ON OR START IGN FUSE LEFT CURTAIN SHIELD AIR BAG SQUIB ASSEMBLY (LEFT SIDE OF ROOF) LEFT FRONT PRETENSIONER (BASE OF LEFT "B" PILLAR) LEFT FRONT SIDE AIR BAG SQUIB CIRCUIT (UNDER DRIVER'S SEAT) LEFT LOWER 1 INSTRUMENT PANEL AIR BAG ASSEMBLY LEFT REAR AIR BAG SENSOR (LEFT "C" PILLAR) LEFT REAR PRETENSIONER (LEFT "C" PILLAR) LEFT REAR SIDE AIR BAG ASSEMBLY (LEFT REAR SEAT BACK) LEFT SIDE AIR BAG SENSOR ASSEMBLY (BASE OF LEFT "B" PILLAR) OF ENGINE COMP) P- P+ D+ D- P-AB GSW PK+ PK- PASSENGER SIDE J/B (RIGHT END OF DASH) RED WIRE RIGHT LOWER 1 INSTRUMENT PANEL AIR BAG ASSEMBLY RL- RL+ SEAT POSITION AIR BAG SENSOR SPIRAL CABLE SUB-ASSEMBLY WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

1 2 AHR+ AHR- 3 1 2 GPS VPS PS AIR BAG ECU ASSEMBLY (UNDER CENTER FLOOR CONSOLE) BBR+ BCR+ BLK WIRE BLU WIRE BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR 3 DRIVER MAIN SIDE J/B BODY ECU (LEFT END OF DASH) ENGINE ROOM J/B 2 (RIGHT FSR+ BBR+ BBR- FUSE GND PS VPS GBT IG DIA FSR+ FSR- BSW BGND GPS BT VBT PNK WIRE GRN WIRE GRY WIRE GSW HOT IN ON OR START J/B 3 MICRO COMPUTER OCCUPANT DETECTION ECU OCCUPANT DETECTION SENSOR P RR- P-J/B FUSE PASSENGER SIDE J/B PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE RED WIRE RIGHT ACTIVE HEADREST AIRBAG SQUIB CIRCUIT (FRONT PASSENGER'S RIGHT CURTAIN SHIELD AIR BAG ASSEMBLY (RIGHT SIDE OF ROOF) RIGHT END OF DASH) RIGHT FRONT SEAT INNER BELT ASSEMBLY RIGHT FRONT SIDE AIR BAG SQUIB CIRCUIT (UNDER FRONT PASSENGER'S SEAT) RIGHT REAR RIGHT SIDE AIR BAG AIR BAG SENSOR ASSEMBLY SENSOR (RIGHT "C" PILLAR) RIGHT REAR SEAT AIR BAG ASSEMBLY (W/ OTTOMAN) RIGHT REAR SIDE AIR BAG ASSEMBLY (BASE OF RIGHT "B" PILLAR) SEAT BACK) SEAT BELT TENSION SENSOR SIDE OF ENGINE COMPT) SIL SL- SR- SRS IND SUPPLY POWER VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

+B BATT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BRN WIRE CAN (+) COMPUTER DATA LINES SYSTEM CONSOLE SWITCH E/G ECU-IG FUSE EFI FUSE EFI MAIN 2 RELAY EFI MAIN FUSE EFI MAIN RELAY EFI- MAIN 2 FUSE ELECTRONICALLY CONTROLLED TRANSMISSION PATTERN SELECT SWITCH ENGINE CONTROLS SYSTEM ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 2 (RIGHT SIDE OF ENGINE COMPT) ETCS FUSE FUSE GRN WIRE GRN/RED WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START J/B 4 (RIGHT SIDE OF DASH) MPX PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE RED WIRE STARTING/ CHARGING SYSTEM STP STA TRANSMISSION CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BLU/RED WIRE BRN WIRE CAN CONTROLLER CAN I/F COMBINATION METER COMPUTER DATA LINES SYSTEM CUTD D MPX-B 2 FUSE DRIVER SIDE J/B (LEFT END OF DASH) ECT PWR IND ECT SNOW IND ELECTRIC POWER CONTROL ECU BCUT FUSE GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT AT ALL TIMES PASSENGER SIDE J/B P-D/C CUT FUSE (RIGHT END OF DASH) HOT IN ON OR START J/B 4 (RIGHT SIDE OF DASH) LED DRIVER MASTER IND NTB NTO PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE RED WIRE SLT- SLU+ STOP FUSE STOP LIGHT SWITCH (LEFT SIDE OF DASH) TRANSMISSION CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) VIO WIRE WHT WIRE YEL WIRE

+B CAN+ CAN- CANL CANH TC 1 24 25 22 32 23 21 28 19 +BM 24 2 13 8 22 21 28 23 20 29 7 3 SPD STAR STP IGSW 6 4 5 3 1 2 VTA 7 8 16 20 29 1 2 10 9 13 14 21 SFTD SFTU BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BR- BRN WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE COOLANT TEMPERATURE SENSOR (FRONT LEFT EVGR GRN WIRE GRN/RED WIRE GRN/YEL WIRE J/B 3 (RIGHT SIDE OF DASH) J/B 4 (RIGHT SIDE OF DASH) J/B 5 (LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE M+ M- ETA VCTA M- M+ MASS AIR FLOW METER (BANK 1) (TOP LEFT SIDE OF ENGINE) MASS AIR FLOW METER (BANK 2) (TOP RIGHT SIDE OF ENGINE) NCA WIRE OF ENGINE) ORG/ WIRE PNK WIRE RED WIRE RED/BLU WIRE SFTD SFTU SHIFT DOWN SHIFT UP SPIRAL CABLE (IN STEERING COLUMN) STA NSW STARTING/CHARGING SYSTEM STEERING PAD SWITCH W/ MODULATOR THA THAR THROTTLE POSITION SENSOR (ON THROTTLE BODY) TRANSMISSION SHIFT SWITCH (BASE OF TRANSMISSION SHIFTER) VCPA EPA VPA BATT MREL VG THA VGR VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

13 14 COMPUTER DATA LINES SYSTEM CANL CANH 15 16 CANN CANP 15 22 6 IG 28 20 CANN CANP 4 17 PGND SG 5 6 24 22 20 9 2 1 7 CANL CANH LOPN LCTY PAWL BDCY LCM+ LCM- HALF BLK WIRE BLU WIRE CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CLS COMPUTER DATA LINES SYSTEM CTY D-ACC FUSE ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) FSM FUEL FUEL LID COURTESY SWITCH FUEL LID WITH MOTOR LOCK ASSEMBLY (BEHIND LEFT REAR WHEELWELL) FUEL OPN FUSE FUO FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START LGLB LT GRN WIRE LUGGAGE LUGGAGE COMPARTMENT DOOR LOCK CYLINDER (CENTER REAR OF LUGGAGE COMPT LID) LUGGAGE COMPARTMENT DOOR OPENING CANCEL SWITCH ASSEMBLY LUGGAGE DOOR CLOSER ASSEMBLY (CENTER REAR OF LUGGAGE COMPARTMENT LID) LUGGAGE DOOR OPENING SWITCH ASSEMBLY LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MAIN BODY ECU DRIVER SIDE J/B (LEFT END OF DASH) MPXB OPN PASSENGER SIDE J/B (RIGHT END OF DASH) PNK LIDO WIRE PNK WIRE POWER TRUNK LID CONTROL ECU (LEFT SIDE OF LUGGAGE COMPT) REAR JUNCTION BLOCK ECU RED WIRE RED/BLK WIRE RR MPX B 1 FUSE RR MPX-B 2 FUSE TKUL TMSW TSW VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE