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

20 21 CANH CANL 5 3 4 2 IG DRSF DRSR 6 7 8 9 10 11 MRH BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CANH CANL PIG PGND COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CONTROL ECU ASSEMBLY CT+ DRIVER SIDE J/B (LEFT END OF DASH) ECU ASSEMBLY (LEFT REAR QUARTER PANEL) FRONT ACTIVE STABILIZER FRONT ACTIVE STABILIZER CONTROL ACTUATOR ASSEMBLY (LEFT FRONT OF ENGINE COMPT) FUSE GRN WIRE HC SR HOT W/ IG CT+ MRL LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MRL+ NCA WIRE ORG/ WIRE PIG PGND POWER STEERING CONVERTER ASSEMBLY REAR ACTIVE STABILIZER CONTROL REAR ACTIVE STABILIZER CONTROL ACTUATOR ASSEMBLY (REAR OF VEHICLE CHASSIS) RED WIRE SHG SG SV HA HB VGND VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+B CANL CANH COMPUTER DATA LINES SYSTEM +BM (LEFT FRONT OF ENGINE) 5 26 34 27 35 7 6 19 +BS MJ SP 1 12 11 10 STP 26 14 1 12 8 10 11 20 19 18 2 3 33 FD 3 1 4 16 15 5 35 6 17 20 19 22 21 18 23 MREL BATT IGSW CANL CANH 30 1 2 6 SPD 7 3 BATT MREL ACCELERATOR POSITION SENSOR ASSEMBLY (LEFT SIDE OF DASH) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BRN WIRE C/OPN RELAY CCS EC COMPUTER DATA LINES SYSTEM ECU-IG FUSE EFI MAIN 2 RELAY EFI MAIN EFI FUSE MAIN RELAY EFI- MAIN 2 FUSE ELECTRONICALLY CONTROLLED TRANSMISSION SOLENOID (ON TRANSMISSION ASSEMBLY) ENGINE CONTROLS SYSTEM ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 2 (RIGHT SIDE OF ENGINE COMPT) ETA M+ M- 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 BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE PNK WIRE PNK/BLU WIRE RED WIRE RED/YEL WIRE STPU SFTD THO VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

14 13 PNK WIRE 16 15 11 10 FL+ FL- RR+ RR- BLK WIRE BLU WIRE BRN WIRE 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 P-J/B ROOM J/B 2 FUSE (RIGHT SIDE OF ENGINE COMPT) PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE RED WIRE RIGHT FRONT PAD WEAR INDICATOR SWITCH/ 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) SUPPLY POWER VIO WIRE W/ VEHICLE DYNAMICS INTEGRATED MANAGEMENT W/O VEHICLE DYNAMICS INTEGRATED MANAGEMENT WHT WIRE WHT/BLK WIRE YEL WIRE

AIR SUS FUSE AIR SUS RELAY BLK WIRE BLU WIRE BRN WIRE CENTER JUNCTION BLOCK J/B 4 (RIGHT SIDE OF DASH) COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM EFL EFR FAL+ FAL+ FAL- FBL+ FBL- RM+ RM- FAR- FBL- FBR+ FBR- FBR- GND SLEX RC CANH CANL GRN WIRE GRY WIRE HEADLIGHT SWIVEL ECU ASSEMBLY (RIGHT KICK PANEL) HEIGHT HIGH, SUSPENSION CONTROL SWITCH HOT AT ALL TIMES HOT IN ON OR START LEFT FRONT ABSORBER CONTROL ACTUATOR (LEFT SIDE OF ENGINE COMPT) LH - LT GRN WIRE MPX MPX-B FUSE ORG/ WIRE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE REAR HEIGHT CONTROL VALVE SUB-ASSEMBLY 2 (REAR OF RED WIRE RH- RIGHT FRONT ABSORBER CONTROL ACTUATOR (RIGHT SIDE OF ENGINE COMPT) SBR SGR SHFL SHFR SHRL SLFR SLFL SLRL SLRR SUSPENSION CONTROL ECU (RIGHT END OF DASH) VEHICLE VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

AIR SUS FUSE AIR SUS RELAY BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B 5 (RIGHT FRONT OF ENGINE COMPT) FRONT ACCELERATION SENSOR ASSEMBLY (LEFT SIDE OF DASH) FUSIBLE LINK BLOCK ASSEMBLY 1 (RIGHT REAR OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE GRY WIRE HEIGHT CONTROL COMPRESSOR MOTOR (RIGHT FRONT OF ENGINE COMPT) HOT AT ALL TIMES INDICATOR SWITCH (LEFT REAR WHEEL HUB ASSEMBLY) LEFT REAR HEIGHT CONTROL SENSOR LEFT REAR HEIGHT CONTROL SENSOR/ LEFT REAR SPEED SENSOR/PAD WEAR LT GRN WIRE ORG/ WIRE PNK WIRE RAR+ RAR- RBR+ RBR- RAL+ RAL- RBL+ RBL- REAR ACCELERATION SENSOR ASSEMBLY (RIGHT REAR OF LUGGAGE COMPT) RED WIRE RIGHT REAR HEIGHT CONTROL SENSOR SBL SGB SGFL SGG SGND SGRR SGRR SHRR SGL SHRL PNK WIRE SGV SHB SHG SHORT CONNECTOR (HEIGHT CONTROL) (RIGHT KICK PANEL) SHRL SHRR SUSPENSION CONTROL ECU (RIGHT END OF DASH) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE CANN CANP COMBINATION METER COMPUTER DATA LINES SYSTEM ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) ERL ERR FRONT HEIGHT CONTROL VALVE (RIGHT FRONT OF ENGINE COMPT) GRN WIRE GRY WIRE HEIGHT CONTROL EXHAUST VALVE (RIGHT SIDE OF FRONT BUMPER) HEIGHT HIGH IND HOT IN ON OR START LEFT FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY LEFT REAR ABSORBER CONTROL ACTUATOR (LEFT REAR WHEELWELL) LH - LT GRN WIRE MASTER IND MICRO COMPUTER MPX-B OF DASH) ORG/ WIRE P-J/B FUSE PASSENGER SIDE J/B (RIGHT END PNK WIRE POWER SUPPLY RAL+ RAR+ RBL- RBR- RED WIRE RH- RIGHT FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY RIGHT REAR ABSORBER CONTROL ACTUATOR (RIGHT REAR WHEELWELL) SHB SHFL SHFR SHG VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE C/OPN RELAY CANL CANH TACH COMPUTER DATA LINES SYSTEM DSVR EFI EFI MAIN MAIN 2 FUSE FUSE EFI MAIN 2 RELAY EFI MAIN RELAY ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) ENGINE ROOM R/B 2 (RIGHT F/PMP RELAY FUO FUEL GRN WIRE GRY WIRE HEATED OXYGEN SENSOR (BANK 1 SENSOR 2) (ON EXHAUST SYSTEM, BELOW VEHICLE) HEATED OXYGEN SENSOR (BANK 2 SENSOR 2) (ON EXHAUST SYSTEM, BELOW VEHICLE) HOT AT ALL TIMES INSTRUMENT CLUSTER SYSTEM LT BLU WIRE NCA WIRE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK LIDO CAN- CAN+ WIRE PNK MREL IREL FC FPR BATT IGSW WIRE PNK PNK KSW WIRE PNK PTNK WIRE PNK TC WIRE PNK WIRE RED WIRE SIDE OF ENGINE COMPT) TACH TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

5 6 CANH CANL A/F FUSE A/F RELAY BLK WIRE BLU WIRE BRN WIRE COMPT) COMPUTER DATA LINES SYSTEM EFI FUSE EFI-B FUSE EMV- ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 2 (RIGHT SIDE OF ENGINE COMPT) EXHAUST GAS TEMPERATURE SENSOR (BANK 1) EXHAUST GAS TEMPERATURE SENSOR (BANK 2) FUEL RELIEF VALVE ASSEMBLY (RIGHT REAR OF ENGINE COMPT) FUEL TANK PRESSURE SENSOR (AT FUEL TANK ASSEMBLY) FUSE GRN WIRE LEFT VVT RELAY MAIN BODY ECU (LEFT END OF DASH) NCA WIRE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE PTNK RED WIRE RELIEF VLV FUSE RELIEF VLV RELAY RIGHT VVT RELAY SKSW VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLK/RED WIRE BLU WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) EKNK ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE VVT ROOM FUSE J/B 2 (RIGHT SIDE OF ENGINE COMPT) I/F I/F I/F KNOCK CONTROL SENSOR (BANK 1 SENSOR 1) (LEFT SIDE OF ENGINE) KNOCK CONTROL SENSOR (BANK 2 SENSOR 1) (RIGHT SIDE OF ENGINE) LT GRN WIRE MALFUNCTION IND MASTER IND MICRO COMPUTER MPX-B-2 FUSE MPXB NCA WIRE PNK WIRE POWER SUPPLY RED WIRE VIO WIRE WATER TEMP IND WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL/BLK WIRE YEL/RED WIRE

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 BATT+ AIR CONDITIONING SYSTEM ANTI-THEFT SYSTEM BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE CAN+ CAN- SFTD SFTU COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DCIM ENGINE ROOM R/B 5 (RIGHT FRONT OF ENGINE COMPT) FCTL FUSIBLE LINK BLOCK ASSEMBLY 1 (RIGHT REAR OF ENGINE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES HYBRID VEHICLE CONTROL ECU (LEFT FRONT OF ENGINE COMPT) IGCT 3 FUSE ILK IMI IMO INTERLOCK SWITCH (RIGHT REAR OF VEHICLE CHASSIS) LT BLU WIRE LT GRN WIRE LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MREL IGSW NCA WIRE NEI GI OHG OHU OHV OHW OIGH OIL PMP FUSE OIL PMP RELAY OIL PUMP MOTOR CONTROLLER (RIGHT FRONT OF ENGINE COMPT) OPST ORG/ WIRE PNK TC WIRE PNK THB WIRE PNK WIRE PSOK RED WIRE SENSOR SIG SMRP NODD VLO VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE