Lexus IS III (2013-2016) (left front of trunk) Wiring diagrams

9 10 CAN- CAN+ BACKUP LIGHT BKUP BLK WIRE BLU/RED WIRE COMPUTER DATA LINES SYSTEM ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) GRN WIRE HOT AT ALL TIMES JUNCTION CONNECTOR LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT MAIN BODY ECU MPXB LEFT REAR COMBINATION LIGHT ASSEMBLY LH-IG FUSE MPX-B FUSE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (TRANSMISSION ASSEMBLY) RED WIRE RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT REAR COMBINATION BACKUP LIGHT LIGHT ASSEMBLY SGND WHT WIRE YEL WIRE

14 13 CANH CANL 31 22 2 STPO 8 12 13 IGSW BACKUP BACKUP LAMPS CIRCUIT BLK WIRE BLK/ WHT WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRAKE ACTUATOR ASSEMBLY (LEFT REAR OF ENGINE COMPT) BRK-LP RELAY BRN WIRE COMPUTER DATA LINES SYSTEM ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) ENGINE ROOM R/B 3 (LEFT REAR OF ENGINE COMPT) GRN WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) LH J/B- AM FUSE HOT IN ON OR START IGN FUSE JUNCTION CONNECTOR LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT LICENSE PLATE LIGHT ASSEMBLY LEFT REAR COMBINATION LIGHT ASSEMBLY LT GRN WIRE MARKER IND NOISE FILTER (STOP LIGHT) (LEFT SIDE OF TRUNK) PNK 8 6 4 2 OUT +B GND STP WIRE POWER SOURCE CONTROL ECU RED WIRE RED/BLK WIRE RED/WHT WIRE RIGHT COWL RIGHT LICENSE PLATE LIGHT ASSEMBLY RIGHT REAR COMBINATION LIGHT ASSEMBLY SHIFT LOCK CONTROL ECU STOP CENTER LIGHT SET STOP LIGHT CONTROL RELAY (BEHIND CENTER OF DASH) STOP LIGHT SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) STOP SW FUSE SIDE J/B (RIGHT END OF DASH) STOP/ TAIL IND STOP/ TAIL MARKER IND IND STP TL TAIL FUSE TAIL IND TAIL RELAY TRANSMISSION CONTROL ECU (LEFT SIDE OF ENGINE COMPT) TRN+ TURN TURN BACKUP WHT WIRE WHT/ BLK WIRE WHT/BLK WIRE YEL WIRE

13 14 CANL CANH 2 19 24 7 TACH SPD PNK WIRE 24 26 18 SPD MOL MOPS BLK WIRE BLK/ WHT WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DATA LINK CONNECTOR (DLC) 3 (BEHIND LOWER LEFT SIDE OF DASH) DCM TELEMATICS TRANSCEIVER (RIGHT SIDE OF DASH) DCTY ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) ECU-IG LH FUSE ENGINE OIL LEVEL SENSOR (RIGHT SIDE OF OIL PAN) ENGINE OIL PRESSURE SWITCH (LOWER FRONT OF ENGINE) ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) FRONT CONTROLLER FUEL SENDER GAUGE ASSEMBLY (FUEL TANK) FUEL SENDER/ GAUGE ASSEMBLY (SUB) (FUEL TANK) FUSE GRN WIRE GRN/ YEL WIRE GRN/RED WIRE GRY WIRE HOT IN ON OR ACC LCTY LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT MAIN BODY ECU LEVEL WARNING SWITCH (WASHER RESERVOIR) LGCY LT BLU WIRE LT GRN WIRE LT GRN/BLK WIRE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY (CENTER REAR OF LUGGAGE COMPT LID) MULTI-MEDIA MODULE RECEIVER ASSEMBLY (W/ NAVIGATION) ORG/ WIRE PCTY PNK 2 3 WIRE PNK SPDP WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RADIO RECEIVER ASSEMBLY (W/O NAVIGATION) RCTY RED WIRE RED/WHT WIRE RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT MAIN BODY ECU RIGHT STEERING PAD SWITCH SPIRAL CABLE (UNDER STEERING WHEEL) STEERING PAD SWITCH ASSEMBLY STEREO COMPONENT AMPLIFIER (RIGHT REAR OF TRUNK) SWG TAC TACH VIO WIRE W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRN WIRE

ALTB ACT+ BATB BLK WIRE BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CPUB DOOR END OF DASH) RIGHT MAIN BODY ECU FR DOOR RH FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES KUL LEFT FRONT DOOR LOCK ASSEMBLY (REAR OF LEFT FRONT DOOR) LEFT REAR DOOR LOCK ASSEMBLY (REAR OF LEFT REAR LGCY LOCK KEY LSSR LSW LSWL GSW LSWP LSWR LT BLU WIRE LT GRN WIRE ORG/ WIRE PNK WIRE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY PWS RED WIRE RED/WHT WIRE RIGHT COWL SIDE J/B (RIGHT RIGHT FRONT DOOR LOCK ASSEMBLY (REAR OF RIGHT FRONT DOOR) RIGHT REAR DOOR LOCK ASSEMBLY (REAR OF RIGHT REAR DOOR) TI, TE FUSE UDL UNLOCK DETECTION UNLOCK KEY VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

BLK WIRE BLU WIRE BRN WIRE BZR COMPT) COURTESY COURTESY SWITCH (LEFT "C" PILLAR) CTY DCTY DOME LIGHT DOME LIGHT STOP LIGHT ASSEMBLY DOOR GRN WIRE ILLB IND INTEGRATED CONTROL, PANEL ASSEMBLY SECU SECURITY INDICATOR LIGHT LCTY LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LILL LOCK LT GRN WIRE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY (CENTER REAR OF LUGGAGE COMPT LID) MULTI- DISPLAY ASSEMBLY ORG/ WIRE OVERHEAD MODULE (CENTER FRONT OF ROOF) PCTY RCTY RED WIRE RED/WHT WIRE RIGHT COWL SIDE J/B (RIGHT RIGHT FRONT DOOR CONTROL SWITCH ASSEMBLY RIGHT FRONT DOOR COURTESY SWITCH (RIGHT "B" PILLAR) RIGHT MAIN BODY ECU END OF DASH) RIGHT REAR DOOR COURTESY SWITCH (RIGHT "C" PILLAR) SECU SECURITY INDICATOR LIGHT SECURITY HORN ASSEMBLY (RIGHT REAR OF ENGINE COMPT) UN LOCK W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLK WIRE WIRELESS DOOR LOCK BUZZER (LEFT SIDE OF ENGINE COMPT) YEL WIRE

BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DOME FUSE ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) FOOT LIGHT GND BDCY GRN WIRE GRY WIRE HEAD LP RELAY HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) LCTY LEFT COWL SIDE J/B (LEFT LEFT MAIN BODY ECU END OF DASH) LEFT OUTER REAR VIEW MIRROR MLP+ LGCY LKUL LPSW LT BLU WIRE LT GRN WIRE LUGGAGE COMPARTMENT DOOR LOCK CYLINDER LUGGAGE ELECTRICAL KEY SWITCH (CENTER REAR OF LUGGAGE COMPT LID) MAIN FUSE MLP PNK WIRE RED/WHT WIRE RIGHT OUTER REAR VIEW MIRROR MLP+ SGND TURN SIGNAL FLASHER (BEHIND LEFT SIDE OF DASH) VIO WIRE 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 LSW 4 8 10 2 5 AUTO LED BLK WIRE BLU WIRE BRN WIRE CERTIFICATION ECU (RIGHT SIDE OF TRUNK) COMPUTER DATA LINES SYSTEM CPUB DATA DOOR CONTROL RECEIVER (CENTER FRONT OF TRUNK) FR DOOR LH FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES KEY LOCK KEY UNLOCK KUL LED LED AUTO LIN LED LIN PNK WIRE LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT DOOR LOCK ASSEMBLY (REAR OF LEFT FRONT DOOR) LEFT FRONT POWER WINDOW REGULATOR MOTOR (LEFT FRONT DOOR) LEFT MAIN BODY ECU LEFT REAR POWER WINDOW REGULATOR MOTOR (LEFT REAR DOOR) LEFT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LSSR LT BLU WIRE LT GRN WIRE PNK PNK WIRE PNK WIRE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY RCO RDA RSSI RED WIRE RR DOOR LH FUSE RSSI SIG UNLOCK DETECTION WHT WIRE WHT/BLK WIRE YEL WIRE

+B PGND 1 2 3 4 5 6 7 8 CAN H CAN L 22 23 13 8 9 8 7 6 LRDD LRRD IGB CAN H CAN L 25 14 COMPUTER DATA LINES SYSTEM CAN H CAN L 6 18 MPX+ MPX- COMPUTER DATA LINES SYSTEM 8 6 7 IGB LRRD LRDD BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRAKE ACTUATOR ASSEMBLY (LEFT REAR OF ENGINE COMPT) BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISTANCE CONTROL ECU (BEHIND LEFT SIDE OF DASH) ECU-IG RH FUSE GRY WIRE HOT AT ALL TIMES LEFT COWL SIDE J/B (LEFT END OF DASH) PSB FUSE HOT W/ IG 2 RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) GAUGE FUSE HOT W/ RH-IG 1 RELAY ENERGIZED INPUT CIRCUIT JUNCTION CONNECTOR LEFT FRONT PRE-COLLISION SEAT BELT MOTOR (BASE OF LEFT "B" PILLAR) LT BLU WIRE LT GRN WIRE MICRO COMPUTER MILLIMETER WAVE RADAR SENSOR (BEHIND CENTER OF FRONT GRILLE) MOR- MOR+ MOL+ MOL- ORG/ WIRE PCS IND PNK COMPUTER DATA LINES SYSTEM WIRE PNK WIRE POWER SUPPLY CIRCUIT RED WIRE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT FRONT PRE-COLLISION SEAT BELT MOTOR (BASE OF RIGHT "B" PILLAR) SEAT BELT CONTROL ECU (LEFT SIDE OF TRUNK) WHT WIRE WHT/BLK WIRE

13 14 CANL CANH COMPUTER DATA LINES SYSTEM 34 24 7 PNK WIRE 6 18 17 MPX+ MPX- COMPUTER DATA LINES SYSTEM 7 6 5 SET LSEL RSEL BKUP BLK WIRE BLU/RED WIRE BRN WIRE CLEARANCE SONAR IND CLEARANCE WARNING BUZZER 1 (UNDER CENTER OF DASH) CLEARANCE WARNING ECU (LEFT SIDE OF TRUNK) COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DOME +B ENGINE CONTROL MODULE (ECM) GRN WIRE GRN/BLK WIRE GRY WIRE HOT AT ALL TIMES IG CBZ INPUT CIRCUIT LCD (MULTI) LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT ULTRASONIC SENSOR 1 (LEFT FRONT OF VEHICLE) LEFT MAIN BODY ECU LEFT REAR ULTRASONIC SENSOR 1 (LEFT CORNER OF REAR BUMPER) LEFT REAR ULTRASONIC SENSOR 2 (LEFT SIDE OF REAR BUMPER) LH-IG FUSE MICRO COMPUTER ORG/ WIRE PARK/ NEUTRAL POSITION SWITCH ASSEMBLY PARKING BRAKE SWITCH (TOP OF PARKING BRAKE LEVER) PKB IG ECU-IG RH FUSE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RELAY RH-IG FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT FRONT ULTRASONIC SENSOR 1 (RIGHT FRONT OF VEHICLE) RIGHT MAIN BODY ECU RIGHT REAR ULTRASONIC SENSOR 1 (RIGHT CORNER OF REAR BUMPER) RIGHT REAR ULTRASONIC SENSOR 2 (RIGHT SIDE OF REAR BUMPER) SATELLITE SWITCH SET TRANSMISSION ASSEMBLY VIO WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COURTESY CYLINDER FUEL LID FUEL LID W/ MOTOR LOCK ASSEMBLY (LEFT REAR OF VEHICLE) FUEL OPN FUSE GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT MAIN BODY ECU LKUL LPSW LT BLU WIRE LT GRN WIRE LUGGAGE LUGGAGE COMPARTMENT DOOR LOCK LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY (CENTER REAR OF LUGGAGE COMPT LID) LUGGAGE COMPARTMENT DOOR OPENING CANCEL SWITCH ASSEMBLY LUGGAGE DOOR OPENING SWITCH ASSEMBLY LUGGAGE ELECTRICAL KEY SWITCH (CENTER REAR OF LUGGAGE COMPT LID) MPX-B FUSE PNK WIRE RED WIRE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT MAIN BODY ECU SGND MPXB TKUL TR+ LGCY TSW BECU WHT WIRE WHT/BLK WIRE