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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 FRV+ RRV+ RCL+ SYSB 1 2 3 4 5 6 7 8 9 10 11 12 L- LV- RCL- C- RRV- GND +B H- LV+ L+ H+ FRV- 19 20 21 22 23 24 25 26 SSFV SSRC SSRH SSRR SSRS CANN CANP 2 3 4 5 6 +5 DATA ASEL RSSI GND BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BRN WIRE CANP CANN RSSI ASEL RDA CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE CERTIFICATION ECU ASSEMBLY (LEFT END OF DASH) COMPUTER DATA LINES SYSTEM D MPX-B 1 FUSE D P/SEAT FUSE DOOR CONTROL RECEIVER (RIGHT REAR OF LUGGAGE COMPT) DRIVER SIDE J/B (LEFT END OF DASH) FUSE GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES IG CUTB LEFT FRONT LUMBAR SUPPORT FORWARD, BACK MOTOR (DRIVER'S SEAT BACK) LEFT FRONT POWER SEAT CONTROL ECU, SWITCH (UNDER DRIVER'S SEAT) LEFT FRONT POWER SEAT CUSHION CONTROL MOTOR ASSEMBLY (UNDER DRIVER'S SEAT) LEFT FRONT POWER SEAT RECLINING POSITION MOTOR (UNDER DRIVER'S SEAT) LEFT FRONT POWER SEAT SLIDE POSITION MOTOR ASSEMBLY (UNDER DRIVER'S SEAT) LEFT FRONT POWER SEAT VERTICAL POSITION MOTOR ASSEMBLY (UNDER DRIVER'S SEAT) LT GRN WIRE OF DASH) ORG/ WIRE P MPX B FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PVCC SSRV C+ SLD- SLD+ RED WIRE RED/BLK WIRE RED/BLU WIRE RELAY ENERGIZED SECURITY FUSE SENSOR SGND VIO WIRE WHT WIRE WHT/BLK WIRE YEL 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 4 5 6 7 8 9 10 11 12 L- BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DOWN FRONT FRONT POWER SEAT SWITCH ASSEMBLY SLIDE FULL FRONT GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES PASSENGER SIDE J/B (RIGHT END OF DASH) P MPX B FUSE HRRS HRFS SLDR SLDF SGND L+ H+ FDWN LT GRN WIRE O/P ORG/ WIRE P P/SEAT 1 FUSE PVCC SSRL RCL- RDWN GND +B H- REAR RED WIRE RED/BLU WIRE RIGHT FRONT HEADREST POSITION SENSOR (FRONT PASSENGER'S SEAT BACK) RIGHT FRONT LUMBAR SUPPORT MOTOR (IN RIGHT FRONT SEAT BACK) RIGHT FRONT POWER SEAT CONTROL ECU, SWITCH RIGHT FRONT POWER SEAT LIFT POSITION SENSOR (UNDER FRONT PASSENGER'S SEAT) RIGHT FRONT POWER SEAT RECLINING POSITION MOTOR (UNDER RIGHT FRONT SEAT) SENSOR SLD+ SLD- SSFV SSRH SSRR SSRS CANN CANP VCC VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CANN CANP COMPUTER DATA LINES SYSTEM CONSOLE SWITCH ASSEMBLY CPUB DRIVER SIDE J/B (LEFT END FRONT PASSENGER'S SEAT RECLINING CONTROL SWITCH FUSE GRN/BLK WIRE GRN/ORG WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE HOT IN ON OR START INTEGRATION CONTROL, PANEL ASSEMBLY LT GRN WIRE MPX MSWE OF DASH) MAIN BODY ECU ORG/ WIRE PCTY PNK WIRE RED WIRE RIGHT FRONT DOOR COURTESY LIGHT SWITCH (RIGHT "B" PILLAR) RIGHT FRONT MULTIPLEX NETWORK DOOR ECU (FRONT PASSENGER'S DOOR) RIGHT FRONT POWER SEAT LIFT POSITION MOTOR (UNDER FRONT PASSENGER'S SEAT) RIGHT FRONT POWER SEAT SLIDE POSITION MOTOR (UNDER FRONT PASSENGER'S SEAT) RIGHT FRONT POWER SEAT VERTICAL POSITION MOTOR (UNDER FRONT PASSENGER'S SEAT) RIGHT POWER SEAT MEMORY SWITCH SENSOR SET- VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

12 26 ILL+ DR 18 1 3 6 11 16 9 10 PNLI GND SIG BDR CPUB 2 1 BCUT CUTD 2 3 ILL+ ILL- 22 12 5 DR ILL+ HILL 4 6 CIL- ILL- BLK WIRE BLK/WHT WIRE CANP CANN CLOCK COIN BOX ILLUMI- NATION LIGHT COLUMN) COMPUTER DATA LINES SYSTEM CONSOLE BOX ILLUMI- NATION LIGHT CONSOLE SWITCH CONTROL ECU DISPLAY, NAVIGATION MODULE DISPLAY (RIGHT SIDE OF LUGGAGE COMPT) DOOR DRIVER SIDE J/B (LEFT END OF DASH) FRONT CONSOLE BOX LIGHT ASSEMBLY ILL+ FRONT PASSENGER'S SEAT RECLINING CONTROL SW FRONT PASSENGER'S SEAT SLIDE CONTROL SW GLOVE BOX ILLUMINATION LIGHT GRN WIRE GRY WIRE HILL HOT AT ALL TIMES HOT IN ON OR START ILL ILL INTEGRATION CONTROL, PANEL ASSEMBLY J/B 5 (LEFT SIDE OF DASH) J/B 5 (LEFT SIDE OF DASH) (LEFT KICK PANEL) LT GRN WIRE ORG/ WIRE OUTER MIRROR SWITCH ASSEMBLY P- DOOR OF DASH) MPX-B FUSE FUSE FUSE FUSE P-D/C CUT FUSE PASSENGER SIDE J/B (RIGHT END PNK MSW- MSW+ WIRE PNK WIRE RADIO RECEIVER ASSEMBLY REAR CONSOLE BOX LIGHT ASSEMBLY ILL+ REAR DOOR SUNSHADE SWITCH REAR SEAT HEATER SW REAR SEAT CLIMATE CONTROL SW REAR SEAT RETURN SWITCH REAR SUNSHADE SW RED WIRE RED/YEL WIRE REGISTER ILLUM- NATION (DRIVER SIDE) REGISTER ILLUMINATION (CENTER) REGISTER ILLUMINATION (PASSENGER SIDE) RIGHT FRONT DOOR CONTROL ECU (FRONT PASSENGER'S DOOR) RIGHT FRONT SEAT MEMORY SWITCH (RIGHT SIDE OF LUGGAGE COMPT) SPIRAL CABLE (IN STEERING STEERING PAD SWITCH STEERING PAD SWITCH W/ MODULATOR STEERING SWITCH ECU VIO WIRE W/ MULTI DISPLAY W/ MULTI DISPLAY W/O MULTI DISPLAY W/O MULTI DISPLAY W/O W/ MULTI MULTI DISPLAY DISPLAY WHT (OR RED) WIRE WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE

1 10 RMVR RM+R 6 11 3 16 9 10 1 BDR CPUB SIG 6 5 13 14 VSSR RVC HSSR AUTO RETRACTOR SWITCH OUTER MIRROR SWITCH BDR CPUB SIG BCUT CANP CANN GND BLK WIRE BLU WIRE BRN WIRE CANN CANP CANP CANN GND CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) CENTER JUNCTION BLOCK J/B 5 (LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DOOR 1 FUSE DOOR 2 FUSE DRIVER SIDE J/B (LEFT END OF DASH) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES PASSENGER SIDE J/B (RIGHT END OF DASH) HYBRID VEHICLE CONTROL ECU (LEFT FRONT OF ENGINE COMPT) LEFT FRONT MULTIPLEX NETWORK DOOR ECU (DRIVER'S DOOR) LEFT FRONT POWER SEAT CONTROL ECU, SWITCH (UNDER DRIVER'S SEAT) LEFT FRONT SEAT MEMORY SWITCH LEFT OUTER REAR VIEW MIRROR (AT MIRROR) LEFT/RIGHT LT GRN WIRE MAIN BODY ECU ALTB MIRROR POSITION SENSOR MPX-B FUSE MSW MSWE ORG/ WIRE OUTER MIRROR SWITCH ASSEMBLY P-D/C CUT FUSE PARK/ NEUTRAL POSITION SWITCH (RIGHT SIDE OF TRANSMISSION) PNK ILL+ WIRE PNK WIRE RED WIRE RED/WHT WIRE RELAY RELAY MPX B 1 FUSE RETRACTABLE MIRROR MOTOR RIGHT FRONT MULTIPLEX NETWORK DOOR ECU (FRONT PASSENGER'S DOOR) RIGHT OUTER REAR VIEW MIRROR (AT MIRROR) RMHR SET- SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) UP/DOWN VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BCUT BDR BLK WIRE BLU WIRE CANN CANP COMPUTER DATA LINES SYSTEM CPUB D DOOR 1 FUSE D DOOR 2 FUSE D MPX-B 1 FUSE DOWN DRIVER SIDE J/B (LEFT END OF DASH) DSDN DSE DSUP FUSE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START HOT IN ON OR START PASSENGER SIDE J/B (RIGHT END OF DASH) FUSE J/B 4 (RIGHT SIDE OF DASH) LEFT FRONT MULTIPLEX NETWORK DOOR ECU (DRIVER'S DOOR) LEFT FRONT SEAT MEMORY SWITCH LEFT HEIGHT ADJUSTABLE ANCHOR SWITCH LT GRN WIRE MSW MSWE ORG/ WIRE P DOOR 1 FUSE P DOOR 2 FUSE P MPX B FUSE P-D/C CUT FUSE PNK MSW WIRE PNK WIRE PSDN PSE PSUP RED WIRE RIGHT FRONT MULTIPLEX NETWORK DOOR ECU (FRONT PASSENGER'S DOOR) RIGHT HEIGHT ADJUSTABLE ANCHOR SWITCH RIGHT POWER SEAT MEMORY SWITCH SET- SIG VIO WIRE 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

BLK WIRE BLU WIRE BRN 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 DOWN GRN WIRE GRN/RED WIRE GRN/WHT WIRE HEADLIGHT DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HYBRID VEHICLE CONTROL ECU (LEFT FRONT OF ENGINE COMPT) IG CANP CANN PNK WIRE LEFT FRONT POWER SEAT CONTROL ECU, SWITCH (UNDER DRIVER'S SEAT) MSW P-D/C CUT FUSE PARK/ NEUTRAL POSITION SWITCH (RIGHT SIDE OF TRANSMISSION) PASSENGER SIDE J/B (RIGHT END OF DASH) RED WIRE SHRINK SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) STRETCH TILT, TELESCOPIC SWITCH VIO WIRE WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE