Lexus LS IV (2006-2012) (left front of engine compt) Wiring diagrams

ABS MTR 1 FUSE ABS MTR RELAY ABS- MAIN 1 FUSE BLK WIRE BLU WIRE BRAKE BOOSTER PUMP ASSEMBLY (LEFT REAR OF ENGINE COMPT) BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) FRR+ FRR- FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (LEFT "B" PILLAR) LEFT REAR SPEED SENSOR LT GRN WIRE MTT ORG/ WIRE PFR PNK CTY WIRE PNK RLR+ RLR- WIRE PNK WIRE PRL RED WIRE RIGHT FRONT SPEED SENSOR RL- RL+ RLA- RLA+ FRA- FRA+ FR+ FR- PNK WIRE SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) VCM 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

5 4 3 2 1 VCSK SKG SKS ABS MAIN 3 FUSE ABS MTR 1 FUSE ABS MTR RELAY ABS- MAIN 1 FUSE BLK WIRE BLU WIRE BRAKE BOOSTER PUMP ASSEMBLY BRAKE FLUID LEVEL WARNING SWITCH (BRAKE MASTER GND CYLINDER RESERVOIR) BRAKE PEDAL STROKE SENSOR ASSEMBLY BRAKE STROKE SIMULATOR (LEFT REAR OF ENGINE COMPT) BRN WIRE BUZZER BZ SS RLA- RLA+ FRA- FRA+ FR+ FR- DRIVER SIDE J/B (LEFT END OF DASH) ENA COMPUTER DATA LINES SYSTEM ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 2 (RIGHT SIDE OF ENGINE COMPT) FRR+ FRR- FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START DRIVER SIDE J/B (LEFT END OF DASH) LBL LBL PFR LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (LEFT "B" PILLAR) LEFT REAR SPEED SENSOR LT GRN WIRE MTT ORG/ WIRE PNK CTY WIRE PNK RLR+ RLR- WIRE PNK WIRE PRL VBZ RED WIRE RIGHT FRONT SPEED SENSOR RL- RL+ SHORT CONNECTOR SKG SKID CONTROL BUZZER ASSEMBLY (LEFT END OF DASH) SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) VCM VCSK VIO WIRE WHT WIRE WHT/ BLK 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

28 20 18 26 5 7 25 COMPUTER CANN CANP TSD TSB RMGV SMOK SSRE DATA LINES SYSTEM AIR OUTLET DAMPER CONTROL SERVO MOTOR (DRIVER SIDE FRONT A/C REAR AIR FLOW) AIR OUTLET DAMPER CONTROL SERVO MOTOR (PASSENGER SIDE FRONT A/C REAR AIR FLOW) BLK WIRE BLOWER MOTOR BLU WIRE BRN WIRE BRRB BRRG BURR CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) CONNECTOR CONNECTOR HOUSING COLOR (BLACK) CONNECTOR HOUSING COLOR (BLUE) CONNECTOR HOUSING COLOR (NATURAL) ENGINE ROOM R/B 4 (LEFT REAR OF ENGINE COMPT) FUSE GND +B SI 5 9 13 GRN WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES ENGINE ROOM PTC HTR 1 FUSE R/B 4 (LEFT REAR OF ENGINE COMPT) HOT AT ALL TIMES PTC HTR 3 FUSE HOT IN ON OR START DRIVER SIDE J/B (LEFT END OF DASH) HOUSING COLOR (GRY) WIRE HOUSING COLOR (RED) WIRE INTERIOR CONVERSION SERVO MOTOR LT BLU WIRE LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) PTC HTR 1 RELAY PTC HTR 3 RELAY REAR COOLING UNIT ASSEMBLY (LEFT "C" PILLAR) REAR DIFFUSE SERVO MOTOR REAR EMISSION SERVO MOTOR REAR JUNCTION BLOCK ECU REAR MAGNETIC VALVE RED WIRE RMGV SMOKE SENSOR SSRE THERMISTOR VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

A/C BLOWER ASSEMBLY AIR INLET DAMPER CONTROL SERVO MOTOR AIR MIX DAMPER CONTROL SERVO MOTOR (PASSENGER SIDE FRONT A/C REAR AIR FLOW) AIR MIX DAMPER SERVO MOTOR (DRIVER SIDE FRONT A/C REAR AIR FLOW) AIR OUTLET DAMPER CONTROL SERVO MOTOR (DRIVER SIDE FRONT A/C REAR AIR FLOW) BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CONNECTOR CONNECTOR HOUSING COLOR (BROWN) CONNECTOR HOUSING COLOR (GRAY) CONNECTOR HOUSING COLOR (GREEN) CONNECTOR HOUSING COLOR (NATURAL) CONNECTOR HOUSING COLOR (SKY BLUE) CONTROL SERVO MOTOR E.F.I. ENGINE COOLANT TEMPERATURE SENSOR (FRONT LEFT OF ENGINE) ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) FROM A/C BLOWER ASSEMBLY (DIAGRAM 4 OF 5) HOUSING COLOR (BLACK) CONNECTOR HOUSING COLOR (BLUE) CONNECTOR HOUSING COLOR (BROWN) CONNECTOR HOUSING COLOR (GREEN) CONNECTOR HOUSING COLOR (RED) WIRE J/C LEFT FOOT/DEF POSITION AIR OUTLET DAMPER CONTROL SERVO MOTOR LEFT FRONT FACE POSITION AIR OUTLET DAMPER CONTROL SERVO MOTOR LEFT HOT POSITION AIR MIX DAMPER CONTROL SERVO MOTOR LEFT M/H BYPASS DAMPER CONTROL SERVO MOTOR M/H BYPASS DAMPER COOL CONTROL SERVO MOTOR POSITION AIR OUTLET DAMPER RIGHT FRONT FACE RED/BLU WIRE RIGHT FOOT/DEF POSITION AIR OUTLET DAMPER CONTROL SERVO MOTOR RIGHT HOT POSITION AIR MIX DAMPER CONTROL SERVO MOTOR WHT WIRE

BAT DLC 3 (LEFT SIDE OF DASH) 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) CG SG CANH SIL DCM (TELEMATICS TRANSCEIVER) (RIGHT END OF DASH) DIA DISPLAY, NAVIGATION MODULE DISPLAY DRIVER SIDE J/B (LEFT END OF DASH) ENGINE CONTROL MODULE (ECM) (LEFT FRONT OF ENGINE COMPT) GRN WIRE HIGH/LOW BUS CIRCUIT HOT AT ALL TIMES HYBRID VEHICLE CONTROL ECU (LEFT FRONT OF ENGINE COMPT) LUGGAGE ROOM J/B OBD FUSE (LEFT SIDE OF LUGGAGE COMPT) OCCUPANT DETECTION ECU (UNDER FRONT PASSENGER'S SEAT) OPA TS TC CANL ORG/ WIRE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE RED WIRE SIL SKID CONTROL ECU ASSEMBLY (LEFT REAR OF ENGINE COMPT) STEERING CONTROL ECU (RIGHT SIDE OF DASH) SUSPENSION CONTROL ECU (RIGHT END OF DASH) TAC TACH VIO WIRE WHT WIRE WHT/BLK WIRE

5 15 ATX+ ATX- 6 7 PNK WIRE 8 9 29 30 PNK CANL CANH WIRE 9 10 TX+ TX- BLK WIRE BLU WIRE CAN (+) CANL CANH CAN- CAN+ CANN CANP DRIVER MONITOR ECU ENGINE CONTROL MODULE FRONT CENTER MILLIMETER WAVE RADAR SENSOR FRONT CONTROLLER (RIGHT FRONT OF ENGINE COMPT) GRN WIRE INTEGRATION CONTROL, PANEL ASSEMBLY LT GRN WIRE OF LUGGAGE COMPT) PARKING BRAKE ECU (LEFT SIDE PNK WIRE RADIO RECEIVER ASSEMBLY (W/O MULTI DISPLAY) RED WIRE RIGHT FRONT POWER SEAT CONTROL ECU, SWITCH (UNDER FRONT PASSENGER'S SEAT) SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) ST-PLUG TRANSMISSION CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

12 13 CANH CANL 13 22 CANH CANL 15 14 CANH CANL 21 20 CANL CANH 3 4 CANH CANL 6 5 CANL CANH A/C AMPLIFIER (CENTER OF DASH) AFS ECU (RIGHT KICK PANEL) AIR PBEW DR ARON BLK WIRE BLK/WHT WIRE BLU WIRE CANL CANH CENTER AIR BAG ECU (UNDER CENTER FLOOR CONSOLE) COMBINATION METER CONSOLE SWITCH DLC 3 (LEFT SIDE OF DASH) DRIVER SIDE J/B (LEFT END OF DASH) ELECTRIC POWER CONTROL ECU ENGINE CONTROL MODULE FRONT PASSENGER'S SEAT BELT WARNING LIGHT FRONT PASSENGER'S SEAT RECLINING CONTROL SWITCH FRONT PASSENGER'S SEAT RECLINING CONTROL SWITCH (W/ 5-SEATER) FRONT PASSENGER'S SEAT SLIDE CONTROL SWITCH FRONT WIPER DEICER SWITCH FUSE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/ORG WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HILL HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INTEGRATION CONTROL, PANEL ASSEMBLY J/B 3 (RIGHT SIDE OF DASH) J/B 5 (LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) P-ACC FUSE PASSENGER AIR BAG ON/OFF INDICATOR PASSENGER SIDE J/B (RIGHT END OF DASH) PNK TC WIRE PNK WIRE RADIO 1 FUSE RADIO RECEIVER ASSEMBLY REAR DOOR SUNSHADE SWITCH REAR SEAT CLIMATE CONTROL SWITCH IND REAR SEAT REAR SUNSHADE SWITCH HEATER SWITCH REAR SUNSHADE SWITCH REAR WINDOW DEFOGGER SWITCH RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT END OF DASH) SKID CONTROL ECU SUPPLEMENTAL RESTRAINTS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM WARNING SYSTEMS INTERIOR LIGHTS SYSTEM VIO WIRE W/O MULTI DISPLAY WHT/BLK WIRE YEL WIRE

12 13 CANH CANL 13 22 CANH CANL 15 14 CANH CANL 21 20 CANL CANH 3 4 CANH CANL 6 5 CANL CANH 9 10 TX+ TX- A/C AMPLIFIER (CENTER OF DASH) AFS ECU (RIGHT KICK PANEL) AIR PBEW DR ARON BLK WIRE BLK/WHT WIRE BLU WIRE CANL CANH CENTER AIR BAG ECU (UNDER CENTER FLOOR CONSOLE) COMBINATION METER CONSOLE SWITCH DLC 3 (LEFT SIDE OF DASH) DRIVER SIDE J/B (LEFT END OF DASH) ELECTRIC POWER CONTROL ECU ENGINE CONTROL MODULE FRONT PASSENGER'S SEAT BELT WARNING LIGHT FRONT WIPER DEICER SWITCH FUSE GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HILL HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INTEGRATION CONTROL, PANEL ASSEMBLY J/B 3 (RIGHT SIDE OF DASH) J/B 5 (LEFT SIDE OF DASH) LT BLU WIRE LT GRN WIRE MAIN BODY ECU (LEFT END OF DASH) P-ACC FUSE PASSENGER AIR BAG ON/OFF INDICATOR PASSENGER SIDE J/B (RIGHT END OF DASH) PNK TC WIRE PNK WIRE RADIO 1 FUSE RADIO RECEIVER ASSEMBLY REAR DOOR SUNSHADE SWITCH REAR SEAT CLIMATE CONTROL SWITCH REAR SEAT CLIMATE CONTROL SWITCH IND REAR SEAT HEATER SWITCH REAR SEAT CLIMATE CONTROL SWITCH REAR SEAT RETURN SWITCH REAR SUNSHADE SWITCH REAR WINDOW DEFOGGER SWITCH RED WIRE RED/BLK WIRE RED/WHT WIRE RED/YEL WIRE RIGHT END OF DASH) SKID CONTROL ECU SUPPLEMENTAL RESTRAINTS SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM WARNING SYSTEMS INTERIOR LIGHTS SYSTEM VIO WIRE W/O MULTI DISPLAY WHT/BLK WIRE