Lexus LS IV (2006-2012) ecu-ig fuse Wiring diagrams

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

+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

BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE C/OPN RELAY COMPUTER DATA LINES SYSTEM CRUISE CONTROL MAIN SWITCH DRIVER SIDE J/B (LEFT END OF DASH) ECU-IG FUSE EFI EFI MAIN EFI FUSE MAIN RELAY 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/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) LT GRN WIRE NCA WIRE ON- +RES -SET MODE OFF PNK WIRE RED WIRE RELAY SPIRAL CABLE (IN STEERING COLUMN) STEERING PAD SWITCH W/ MODULATOR STEERING SWITCH ECU THROTTLE POSITION SENSOR (ON THROTTLE BODY) TRANSMISSIONS SYSTEM VIO WIRE W/ PADDLE SHIFT SWITCH W/O PADDLE SHIFT SWITCH WHT WIRE WHT/BLK WIRE YEL WIRE

ACCELERATOR POSITION SENSOR ASSEMBLY (LEFT SIDE OF DASH) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BRN WIRE C/OPN RELAY COMPUTER DATA LINES SYSTEM ECU-IG FUSE EFI MAIN 2 RELAY EFI MAIN EFI FUSE MAIN RELAY EFI- MAIN 2 FUSE ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 2 (RIGHT SIDE OF ENGINE COMPT) 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 GRN WIRE NCA WIRE ORG/ WIRE PARK/NEUTRAL POSITION SWITCH (RIGHT SIDE OF TRANSMISSION) PNK WIRE PNK/BLU WIRE RED WIRE RED/YEL WIRE SFTD STPU THO VIO WIRE WHT WIRE WHT/BLK 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

+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

11 5 IRLY 8 9 13 14 12 IG GND RX TX SGND BLK WIRE BLU WIRE BRN WIRE CENTER JUNCTION BLOCK J/B 3 (RIGHT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DRIVER SIDE J/B (LEFT END OF DASH) DRIVER SIDE J/B (LEFT SIDE OF DASH) ECU-IG FUSE FUSE GRN WIRE GRY WIRE GVI- HOT AT ALL TIMES DRIVER SIDE J/B STOP (LEFT END FUSE OF DASH) HOT IN ON OR START HOT IN ON OR START ENGINE ROOM J/B 2 (RIGHT SIDE OF ENGINE COMPT) NV-IR FUSE IG IRL IRDV GND IRFL IRLY IRR LEFT HEADLIGHT ASSEMBLY LT BLU WIRE LT GRN WIRE NEAR INFRARED PROJECTOR OBJECT RECOGNITION ECU (IF EQUIPPED) (RIGHT REAR OF LUGGAGE COMPT) ORG/ WIRE OVERHEAD MODULE (ROOF CONSOLE) PASSENGER SIDE J/B (RIGHT END OF DASH) RED WIRE RIGHT HEADLIGHT ASSEMBLY SGND RX TX SOL + SOL IRFR STOP LIGHT SWITCH ASSEMBLY (LEFT SIDE OF DASH) VIO WIRE WHT WIRE WHT/BLK WIRE

1 2 3 4 5 6 7 8 IG BLK WIRE BLU WIRE ECU-IG FUSE ENGINE CONTROLS SYSTEM FROM FROM LUGGAGE ROOM J/B (DIAGRAM 4 OF 6) FROM RR ACC RELAY AC (DIAGRAM 4 OF 6) FUSE IGN FUSE INJ FUSE INV RELAY JUNCTION LT BLU WIRE LUGGAGE ROOM J/B (LEFT SIDE OF LUGGAGE COMPT) MAIN BODY ECU NAVIGATION, SUPPLEMENTAL RESTRAINTS SYSTEMS P-J/B FUSE PNK WIRE POWER OUTLET RED WIRE RELAY VIO WIRE VOLTAGE INVERTER ASSEMBLY W/ 5 SEATER, OTTOMAN W/O 5 SEATER, OTTOMAN WHT WIRE WHT/BLK WIRE

15 22 6 IG 27 2 STSW STAR BATTERY BLK WIRE BLU WIRE BRN WIRE CHARGING CIRCUIT D-ACC FUSE DRIVER SIDE J/B (LEFT END OF DASH) ECU-IG FUSE 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) ENGINE ROOM R/B 2 (RIGHT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ D-ACC RELAY ENERGIZED JUNCTION CONNECTOR MAIN BODY ECU (LEFT END OF DASH) PARK/NEUTRAL POSITION SWITCH (RIGHT SIDE OF TRANSMISSION) PASSENGER SIDE J/B (RIGHT END OF DASH) RED WIRE RELAY ENERGIZED ST CUT RELAY ST FUSE ST RELAY STARTER STR+ STSW WHT WIRE WHT/BLK WIRE YEL 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