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

14 13 CANH CANL 15 14 20 6 9 10 CANH CANL THB VC IB 18 17 ALT RLO ALT FUSE BACK LIGHT IND BATTERY BATTERY CURRENT SENSOR (RIGHT REAR OF ENGINE COMPT) BLK WIRE BLU WIRE BLU/RED WIRE BODY EARTH BRN WIRE BUZZER CAN CONTROLLER CAN I/F CHARGE COMBINATION METER COMPUTER DATA LINES SYSTEM ELECTRIC POWER CONTROL ECU (RIGHT END OF DASH) ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) FRONT CONTROLLER (RIGHT FRONT OF ENGINE COMPT) FUSE GENERATOR ALTL CANN CANP GRN WIRE INDICATOR LED DRIVER MASTER MPX-B P-J/B FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE RED WIRE RELAY ENERGIZED RLO SIGNAL EARTH STARTER TFT CPU TFT MODULE TFT PANEL THB WHT WIRE

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

BCUT BLK WIRE BLU WIRE BRN WIRE CAN (+) CAN I/F COMBINATION METER COMPUTER DATA LINES SYSTEM CRUISE IND CUTD ELECTRIC POWER CONTROL ECU (RIGHT END OF DASH) ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) GRN WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START LED DRIVER LEFT FRONT SPEED SENSOR LEFT FRONT SPEED SENSOR/ LEFT FRONT PAD LEFT REAR HEIGHT CONTROL SENSOR (LEFT REAR WHEELWELL) LEFT REAR SPEED SENSOR P-D/C CUT FUSE P-J/B FUSE PARK/NEUTRAL POSITION SWITCH (RIGHT SIDE OF TRANSMISSION) PASSENGER SIDE J/B (RIGHT END OF DASH) PNK CANH WIRE PNK FR WIRE PNK WIRE RED WIRE RIGHT FRONT SPEED SENSOR RIGHT REAR SPEED SENSOR RIGHT REAR HEIGHT CONTROL SENSOR (RIGHT REAR WHEELWELL) SKID CONTROL ECU (LEFT REAR OF ENGINE COMPT) STOP LIGHT SWITCH (LEFT SIDE OF DASH) TRANSMISSION CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) VIO WIRE W/ VEHICLE DYNAMICS INTEGRATED MANAGEMENT WEAR INDICATOR SWITCH (LEFT FRONT WHEEL HUB ASSEMBLY) WHT WIRE YEL WIRE

+BM +RES ON- -SET OFF 13 8 12 STP IGSW 15 9 10 13 14 CCS CAN- CAN+ CANL CANH 28 18 CAN- CAN+ 29 20 23 28 21 22 VPA EPA VCPA 7 3 BATT MREL PNK WIRE ACCELERATOR POSITION SENSOR (LEFT SIDE OF DASH) BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE C/OPN RELAY COMPUTER DATA LINE SYSTEM CRUISE CONTROL MAIN SWITCH DRIVER SIDE J/B (LEFT END OF DASH) ECU-IG FUSE EFI EFI MAIN EFI FUSE MAIN RELAY ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) 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 FUSE GRN WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START HOT IN ON OR START E/G RM- J/B 5 (LEFT SIDE OF DASH) NCA WIRE ORG/ WIRE PNK WIRE RED WIRE RELAY SPIRAL CABLE (IN STEERING COLUMN) TRANSMISSIONS SYSTEM VIO WIRE VTA VCTA W/ VEHICLE DYNAMICS INTEGRATED MANAGEMENT WHT WIRE WHT/BLK WIRE YEL WIRE

13 14 CANL CANH 18 34 27 VC NE- NE+ PNK WIRE 4 6 5 PNK WIRE BDCY BLK WIRE BLU WIRE BRN WIRE CANN CANP COMPUTER DATA LINES SYSTEM CRANKSHAFT POSITION SENSOR CUTD D-ACC FUSE DCM (TELEMATICS TRANSCEIVER) (RIGHT END OF DASH) DCTY DISP DISPLAY, NAVIGATION MODULE DISPLAY DRIVER SIDE J/B (LEFT END OF DASH) ELECTRIC POWER CONTROL ECU BCUT ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FRONT PAD WEAR INDICATOR SWITCH FUEL INJECTOR (DIRECT INJECTION 1) (LEFT SIDE OF INTAKE MANIFOLD) FUEL INJECTOR (PORT INJECTION 1) (LEFT SIDE OF INTAKE MANIFOLD) FUEL SENDER GAUGE (LEFT SIDE OF FUEL TANK) FUEL SENDER GAUGE (SUB) (RIGHT SIDE OF FUEL TANK) FUSE GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START INJECTOR DRIVER (BANK 1) (CENTER REAR OF ENGINE COMPT) J/B 3 (RIGHT SIDE OF DASH) J/B 4 (RIGHT SIDE OF DASH) J/B 5 (LEFT SIDE OF DASH) LCTY LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT REAR DOOR COURTESY SWITCH (LEFT "C" PILLAR) LEFT REAR HEIGHT CONTROL SENSOR (RIGHT REAR WHEELWELL) LGLB LT BLU WIRE LT GRN WIRE LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MAIN BODY ECU MPXB NCA WIRE NE NE- VC PNK WIRE P-D/C CUT FUSE PASSENGER SIDE J/B (RIGHT END OF DASH) PCTY PIND PNK WIRE RCTY REAR JUNCTION BLOCK ECU REAR PAD WEAR INDICATOR SWITCH REAR SEAT ENTERTAINMENT TABLE SWITCH RED WIRE RESET+ RIGHT FRONT DOOR COURTESY SWITCH (RIGHT "B" PILLAR) RIGHT REAR DOOR COURTESY SWITCH (RIGHT "C" PILLAR) RL+ RL- 7 8 RR MPX B 1 FUSE RR MPX-B 2 FUSE SPDP STEERING PAD SWITCH STEERING PAD SWITCH W/ MODULATOR STEERING SWITCH ECU STEREO COMPONENT AMPLIFIER (RIGHT REAR OF LUGGAGE COMPT) TOP OF ENGINE) TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE W/ MULTI DISPLAY 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 19 20 21 22 23 24 CBZ EE 1 3 5 BI SI EI 11 1 12 2 3 IG CLEARANCE SONAR SWITCH CANP CANN 14 13 CANH CANL 18 14 ES 3 5 1 2 4 6 SI EI BI BO SO EO 5 3 1 2 4 6 EI SI BI BO SO EO 6 4 2 1 3 5 EO SO BO BI SI EI 6 4 2 1 3 5 PNK EO SO BO BI SI EI WIRE BLK WIRE BLU WIRE BOF BOR BRN WIRE BUZZER CAN CONTROLLER CAN I/F CANN CANP CANL CANH CLEARANCE SONAR ECU (RIGHT END OF DASH) COMBINATION METER COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) E/G ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) FRONT CLEARANCE WARNING BUZZER (CENTER OF DASH) FUSE GRN WIRE GRN/RED WIRE HOT AT ALL TIMES HOT IN ON OR START J/B 4 (RIGHT SIDE OF DASH) J/B 5 (LEFT SIDE OF DASH) LED DRIVER LEFT FRONT CENTER ULTRASONIC SENSOR 1 (LEFT SIDE OF FRONT BUMPER FASCIA) LEFT FRONT SIDE ULTRASONIC SENSOR 1 (LEFT SIDE OF FRONT BUMPER FASCIA) LEFT FRONT ULTRASONIC SENSOR 1 (LEFT SIDE OF FRONT BUMPER FASCIA) LEFT REAR CENTER ULTRASONIC SENSOR 1 (LEFT SIDE OF REAR BUMPER FASCIA) LEFT REAR ULTRASONIC SENSOR 1 (LEFT SIDE OF REAR BUMPER FASCIA) MASTER IND MPX-B 1 FUSE ORG/ WIRE OUTER MIRROR SWITCH ASSEMBLY P-J/B FUSE PARK/ RB NEUTRAL POSITION SWITCH (RIGHT SIDE OF TRANSM- ISSION) PASSENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE REAR CLEARANCE WARNING BUZZER (UNDER REAR PARCEL SHELF) RED WIRE RIGHT FRONT CENTER ULTRASONIC SENSOR 1 (RIGHT SIDE OF FRONT BUMPER FASCIA) RIGHT FRONT SIDE ULTRASONIC SENSOR 1 (RIGHT SIDE OF FRONT BUMPER FASCIA) RIGHT FRONT ULTRASONIC SENSOR 1 (RIGHT SIDE OF FRONT BUMPER FASCIA) RIGHT REAR CENTER ULTRASONIC SENSOR 1 (RIGHT SIDE OF REAR BUMPER FASCIA) RIGHT REAR ULTRASONIC SENSOR 1 (RIGHT SIDE OF REAR BUMPER FASCIA) SOF BBZ EF SOR VIO WIRE WHT WIRE WHT/BLK WIRE

ACCELERATOR POSITION SENSOR (LEFT SIDE OF DASH) ACCR STA TC BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE C/OPN RELAY CANL CANH CCS COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM EFI EFI MAIN MAIN 2 FUSE FUSE EFI MAIN 2 RELAY EFI MAIN RELAY ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE ROOM R/B 2 (RIGHT F/PMP RELAY GAUGE GRN WIRE GRY WIRE HEATED OXYGEN SENSOR (BANK 1 SENSOR 2) (EXHAUST SYSTEM, BELOW VEHICLE) HEATED OXYGEN SENSOR (BANK 2 SENSOR 2) (EXHAUST SYSTEM, BELOW VEHICLE) HOT AT ALL TIMES INSTRUMENT CLUSTER SYSTEM J/B 3 (RIGHT SIDE OF DASH) J/B 4 (RIGHT SIDE OF DASH) LT BLU WIRE LT GRN WIRE NCA WIRE NSW IMO IMI ORG/ WIRE PASS- ENGER SIDE J/B (RIGHT END OF DASH) PNK WIRE PUMP RED WIRE SFTD STFU CAN- CAN+ SIDE OF ENGINE COMPT) STARTING/ CHARGING SYSTEM STARTING/ CHARGING SYSTEM ANTI-THEFT SYSTEM STARTING/ CHARGING SYSTEM COMPUTER DATA LINES SYSTEM STSW TACH TRANSMISSION SHIFT SWITCH (BASE OF TRANSMISSION SHIFTER) TRANSMISSION SYSTEM VCPA SPD KSW VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLK/RED WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BUZZER CAN (+) CAN CONTROLLER CAN I/F COMBINATION METER COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) EFI EKNK ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT IN ON OR START HOT IN ON OR START ENGINE EFI ROOM FUSE J/B 1 (RIGHT REAR OF ENGINE COMPT) J/B 3 (RIGHT SIDE OF DASH) (LEFT FRONT OF ENGINE) KNOCK SENSOR (BANK 1 SENSOR 1) (LEFT SIDE OF ENGINE) KNOCK SENSOR (BANK 2 SENSOR 1) (RIGHT SIDE OF ENGINE) LED DRIVER LT GRN WIRE MALFUNCTION IND LAMP MASTER IND MPX-B-2 FUSE NCA WIRE PNK WIRE RED WIRE SPEEDO- METER STARTING/ CHARGING SYSTEM STOP FUSE FUSE TACHO- METER TEMPER- ATURE WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL/BLK WIRE

+BM 8 9 10 11 12 13 14 15 16 17 PNK WIRE BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BR- BRN WIRE CRANKSHAFT POSITION SENSOR (RIGHT REAR OF ENGINE) ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) EVGR EX+ FP- FPD + FPF FUEL INJECTOR (DIRECT INJECTION 1) FUEL INJECTOR (DIRECT INJECTION 4) FUEL INJECTOR (DIRECT INJECTION 6) FUEL INJECTOR (DIRECT INJECTION 7) GRN WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES ETCS FUSE HOT IN ON OR START ENGINE ECU- IG ROOM J/B 2 FUSE (RIGHT SIDE OF ENGINE COMPT) LT GRN WIRE MASS AIR FLOW METER (BANK 1) (TOP LEFT SIDE OF ENGINE) MASS AIR FLOW METER (BANK 2) (TOP RIGHT SIDE OF ENGINE) MPMP NCA WIRE NE+ PNK WIRE PNK/BLU WIRE PPMP RED WIRE RED/BLU WIRE THA THAR TOP OF ENGINE) VGR VIO WIRE VPMP VVT SENSOR (BANK 1 EXHAUST SIDE) (LEFT SIDE OF ENGINE) WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE

15 16 17 18 PNK WIRE BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE CAMSHAFT CONTROL MOTOR (BANK 2) (RIGHT FRONT OF ENGINE) CAMSHAFT POSITION SENSOR (FRONT OF RIGHT CYLINDER HEAD) CAMSHAFT TIMING OIL CONTROL VALVE (BANK 1) (FRONT OF LEFT CYLINDER HEAD) ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FPD + FUEL INJECTOR (PORT INJECTION 1) FUEL INJECTOR (PORT INJECTION 3) FUEL INJECTOR (PORT INJECTION 5) FUEL INJECTOR (PORT INJECTION 7) GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE LT GRN WIRE M- M+ 80 60 40 20 NCA WIRE PNK ASM- ASM+ WIRE PNK WIRE PNK/BLU WIRE RED WIRE RED/BLU WIRE RLO ALT SGND STARTING/ CHARGING SYSTEM THROTTLE POSITION SENSOR (ON THROTTLE BODY) VCTA ETA VIO WIRE VTD VTM VTP VTS VVL+ VVR+ VVT SENSOR (BANK 1 INTAKE SIDE) (LEFT SIDE OF ENGINE) WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE