Lexus CT I (2010-2014) (left front of engine compt) Wiring diagrams

2 3 1 PNK WIRE 24 25 PNK WIRE BACKUP LIGHT BKUP BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B (LEFT SIDE GAUGE FUSE GRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) INTEGRATION RELAY LEFT REAR LIGHT ASSEMBLY LT BLU WIRE LT GRN WIRE P/I 2 FUSE OF ENGINE COMPT) PNK WIRE POWER MANAGEMENT CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RELAY ENERGIZED RIGHT REAR LIGHT ASSEMBLY SHIFT LEVER POSITION SENSOR (BEHIND CENTER OF DASH) SHIFT LEVER POSITION SENSOR 2 (UNDER CENTER CONSOLE) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

22 20 21 89 90 111 88 PNK M- M+ WIRE 5 13 CANH CANL PNK WIRE 6 7 23 MREL ACCELERATOR PEDAL SENSOR ASSEMBLY (ON ACCELERATOR PEDAL ASSEMBLY) BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM EAT VCTA ECM (ENGINE CONTROL MODULE) (LEFT SIDE OF ENGINE COMPT) ECU-IG 2 FUSE ENGINE CONTROLS SYSTEM ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGCT FUSE IGCT RELAY IGN FUSE LEFT END OF DASH) INSTRUMENT PANEL J/B (BEHIND LT BLU WIRE LT GRN WIRE MET FUSE NCA WIRE ORG/ WIRE PNK WIRE POWER MANAGEMENT CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE STOP FUSE STOP LIGHT SWITCH ASSEMBLY (ABOVE BRAKE PEDAL, ON BRACKET) THROTTLE BODY ASSEMBLY (LEFT SIDE OF ENGINE) TOP OF ENGINE) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+RES -SET 8 6 GND B+ BLK WIRE BLU WIRE BRN WIRE BUZZER COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CRUISE CONTROL MAIN SWITCH CRUISE IND GRN WIRE LEFT FRONT SPEED SENSOR (LEFT FRONT WHEEL) LEFT REAR SPEED SENSOR (LEFT REAR WHEEL) LT BLU WIRE LT GRN WIRE MULTI-INFORMATION DISPLAY NCA WIRE ON OFF ORG/ WIRE OUT PNK WIRE RED WIRE RIGHT FRONT SPEED SENSOR (RIGHT FRONT WHEEL) RIGHT REAR (LEFT FRONT OF SPEED SENSOR ENGINE COMPT) (RIGHT REAR WHEEL) RL+ RL- RR- RR+ FL- FL+ FR- FR+ SKID CONTROL ECU ASSEMBLY (BEHIND LEFT SIDE OF DASH) SPIRAL CABLE SUB-ASSEMBLY (STEERING COLUMN) STOP LIGHT CONTROL RELAY ASSEMBLY STPO STP VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEMS CONTROL ECU ASSEMBLY (FRONT PASSENGER'S DOOR) DC/DC FUSE DRIVER'S DOOR ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) GRN WIRE GRY WIRE HOT AT ALL TIMES HTR INTEGRATION RELAY J/C LEFT LICENSE PLATE LIGHT ASSEMBLY LEFT OUTER MIRROR CONTROL ECU ASSEMBLY (DRIVER'S DOOR) LEFT OUTER REAR VIEW MIRROR ASSEMBLY LT BLU WIRE LT GRN WIRE ORG/ WIRE P/I 2 FUSE ECU-B FUSE PNK WIRE RED WIRE RIGHT LICENSE PLATE LIGHT ASSEMBLY RIGHT OUTER MIRROR RIGHT OUTER REAR VIEW MIRROR ASSEMBLY SKID CONTROL ECU (BEHIND LEFT SIDE OF DASH) TRN+ TRNI TURN TURN RIGHT OUTER REAR VIEW TURN, HAZ FUSE VIO WIRE W/ MEMORY W/O MEMORY WHT WIRE WHT/BLK WIRE YEL WIRE

9 8 CANP CANN A/C AMPLIFIER ASSEMBLY (W/ MEMORY) (BEHIND LEFT CENTER OF DASH) A/C CONTROL ASSEMBLY (LEFT CENTER OF DASH) BLK WIRE BRN WIRE BRN/WHT WIRE CANH CANL GND CANP CANN COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DEF DEFB DRIVER'S DOOR ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B GAUGE FUSE HOT AT ALL TIMES HOT IN ON OR START HTR INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) INTEGRATION RELAY LEFT OUTER MIRROR ASSEMBLY LEFT OUTER MIRROR CONTROL ECU ASSEMBLY LEFT OUTER REAR VIEW MIRROR ASSEMBLY (W/O MEMORY) LIN M-HTR FUSE MHTR MIRROR HEATER NOISE FILTER (REAR WINDOW DEFOGGER) (UNDER LOWER LEFT P/I 2 (LEFT SIDE FUSE OF ENGINE COMPT) RDEF REAR WINDOW DEFOGGER (BACK DOOR GLASS) REAR WINDOW DEFOGGER SWITCH RIGHT OUTER MIRROR ASSEMBLY RIGHT OUTER MIRROR CONTROL ECU ASSEMBLY (W/ MEMORY) (FRONT PASSENGER'S DOOR) RIGHT OUTER REAR VIEW MIRROR ASSEMBLY (W/O MEMORY) SIDE OF REAR WINDOW) SYSTEM VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+B +BM CANN CANL MREL TC FC BATT FANL FANH BLK WIRE BLU WIRE BRN WIRE CANP CANH PNK WIRE COMBINATION SWITCH ASSEMBLY COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM ECM (ENGINE CONTROL MODULE) (LEFT SIDE OF ENGINE COMPT) EFI 2 FUSE ENG W/P FUSE ENG W/P RELAY ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) ENGINE WATER PUMP ASSEMBLY ETCS FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES IGN FUSE INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) LT GRN WIRE MET FUSE MPMP NORM NORMAL NWP PNK WIRE PUMP (TOP OF FUEL SENDER ENGINE) GAUGE ASSEMBLY (TOP OF FUEL TANK) PWMS PWR RED WIRE RELAY ENERGIZED SPORT SWP TACH VIO WIRE VPMP WHT WIRE WHT/BLK WIRE WPO YEL WIRE

BLK WIRE BLU WIRE BRN WIRE BUZZER C/OPN RELAY CANISTER PRESSURE SENSOR COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM EFI EFI MAIN FUSE EFI MAIN RELAY ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES LEAK DETECTION PUMP LED (SHIFT POSITION) LT BLU WIRE LT GRN WIRE MALFUNCTION IND LAMP MASTER IND MGND MODE IND MTRB MULTI-INFORMATION DISPLAY PNK WIRE POWER MANAGEMENT CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE SGND SKID CONTROL ECU (BEHIND LEFT SIDE OF DASH) SPORT VCC VENT VALVE VGND VIO WIRE VLVB VOUT WHT WIRE WHT/BLK WIRE YEL WIRE

AIR CONDITIONING SYSTEM BLK WIRE BLU WIRE BRN WIRE BUZZER CLK STB NODD COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) EV MODE IND FCTL GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START HYBRID SYSTEM INDICATOR I/F IGCT 2 FUSE IGCT 3 FUSE IGCT FUSE ECU-B FUSE IGCT RELAY IND LAMP MALFUNCTION INSTRUMENT PANEL J/B (BEHIND LEFT END OF DASH) IWP NIWP BL GI LED (SHIFT POSITION) LT BLU WIRE LT GRN WIRE MASTER IND MET FUSE IGN FUSE MMT MMTG GMT GMTG MULTI-INFORMATION DISPLAY ORG/ WIRE PCU FUSE PNK WIRE POWER MANAGEMENT CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE SIO ETI ITE ILK SKID CONTROL ECU (BEHIND LEFT SIDE OF DASH) SPORT MODE IND STOP FUSE TRANSMISSION CONTROL ECU (BEHIND RIGHT SIDE OF DASH) VIO WIRE VLO WHT WIRE WHT/BLK WIRE YEL WIRE

+BWP BATTERY THERMOMETER SENSOR BLK WIRE BLU WIRE BRN WIRE ENGINE ROOM J/B (LEFT SIDE OF ENGINE COMPT) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES INDS INDW J/C LT BLU WIRE LT GRN WIRE NWP ORG/ WIRE PNK WIRE POWER SWITCH RED WIRE SHIFT LEVER POSITION SENSOR 2 (UNDER CENTER CONSOLE) SWIL SWP VIO WIRE WATER PUMP ASSEMBLY (RIGHT FRONT OF ENGINE COMPT) WHT WIRE WHT/BLK WIRE YEL WIRE

ABFS AIR CONDITIONING SYSTEM BLK WIRE BLU WIRE BRN WIRE BTH+ CLK+ COMPUTER DATA LINES SYSTEM DC/DC-S FUSE ENGINE ROOM R/B (LEFT SIDE OF ENGINE COMPT) ETHB EVSW GRN WIRE GRY WIRE HOT AT ALL TIMES HSDN HTM- IDH IGCT ILK ILKI ILKO INDS INDW INTERLOCK SWITCH (RIGHT SIDE OF LUGGAGE COMP) LT BLU WIRE LT GRN WIRE MTH+ NCA WIRE NODD ORG/ WIRE PNK WIRE POWER MANAGEMENT CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE REQ+ SHIFT LEVER POSITION SENSOR (BEHIND CENTER OF DASH) SMRB SMRG SMRP SPDI SUPPLEMENTAL RESTRAINTS SYSTEM THB VIO WIRE VLO WHT WIRE WHT/BLK WIRE YEL WIRE