Lexus IS III (2013-2016) (behind left kick panel) Wiring diagrams

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 GND WIG 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 S/S +2 S/M ALTL WNG BACK BKUP BLK WIRE BLOCK BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) FR WIP FUSE LH-IG FUSE FROM RIGHT COWL SIDE J/B (DIAGRAM 1 OF 2) FRONT CONTROLLER GRN WIRE GRY WIRE GRY/RED WIRE HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM HOT IN RUN OR START ILE RCTY LCTY LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT MAIN BODY ECU (LEFT COWL SIDE JUNCTION LEFT MAIN BODY ECU (LEFT COWL SIDE JUNCTION BLOCK) LGCY LKUL LPSW LT BLU WIRE LT GRN WIRE MPXB IG NAVIGATION SYSTEM PNK BDCY WIRE PNK WIRE POWER WINDOW REGULAR MASTER SWITCH ASSEMBLY RED WIRE RED/BLU WIRE SGND TL TR TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLK WIRE WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM YEL WIRE

14 13 CANH CANL ALT FUSE BATTERY BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE CHARGE INDICATOR COMBINATION METER ASSEMBLY +IG COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) GAUGE FUSE GENERATOR ASSEMBLY IG GRN/RED WIRE GRN/WHT WIRE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B 1 (RIGHT REAR OF ALT-S FUSE ENGINE COMPT) HOT AT ALL TIMES ENGINE ROOM R/B 1 DOME FUSE (RIGHT REAR OF ENGINE COMPT) INPUT CIRCUIT LEFT COWL SIDE J/B (LEFT END OF DASH) LH-IG FUSE LT GRN WIRE MICRO COMPUTER MPX+ MPX- MPX-B FUSE NETWORK GATEWAY ECU ORG/ WIRE PNK ALT WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) POWER SUPPLY CIRCUIT RELAY RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT END OF DASH) STARTER ASSEMBLY WHT WIRE WHT/BLK WIRE YEL WIRE

34 11 PNK WIRE ACAN ACCD BLK WIRE BRN WIRE CLOCK CLOCK ASSEMBLY COMBINATION METER ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) EXTERIOR SUPPLEMENTAL LIGHTS RESTRAINTS SYSTEM SYSTEM FUSE GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES ILL ILL+ ILL- INTEGRATED CONTROL, PANEL ASSEMBLY IG+ LEFT COWL SIDE J/B (LEFT END OF DASH) LT BLU WIRE LT GRN WIRE MPX-B FUSE ORG/ WIRE P-AB PAON PBEW PNK PBLT WIRE PNK W/ NAVIGATION WIRE PNK W/O NAVIGATION WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RELAY RH ECU-IG FUSE RH-IG 1 RELAY RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT MAIN BODY ECU VIO WIRE W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLK WIRE

BLK WIRE BLK/ WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE DOME FUSE DOME LIGHT ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) FSPT GRN WIRE HOT AT ALL TIMES LEFT FRONT MAP LIGHT LEFT INTERIOR ILLUMINATION LIGHT ASSEMBLY 1 LEFT REAR MAP LIGHT LEFT RIGHT FRONT FRONT MAP MAP LIGHT LIGHT SWITCH SWITCH LEFT VANITY LAMP LEFT VISOR ASSEMBLY ON/OFF DOOR ORG/ WIRE OVERHEAD MODULE (CENTER FRONT OF ROOF) PNK WIRE RED WIRE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT FRONT MAP LIGHT RIGHT INTERIOR ILLUMINATION LIGHT ASSEMBLY 1 RIGHT MAIN BODY ECU RIGHT REAR MAP LIGHT RIGHT VANITY LAMP RIGHT VISOR ASSEMBLY SHIFT ILLUM- INATION SPOT LIGHT ASSEMBLY WHT WIRE WHT/BLK WIRE WHT/RED WIRE YEL WIRE

AUTO BLK WIRE BLU WIRE BRAKE ACTUATOR ASSEMBLY (LEFT REAR OF ENGINE COMPT) BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DIMMER SWITCH ECU-IG RH FUSE ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) FLO FRO FUSE GAUGE FUSE GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HEAD HEAD AUTO HEADLIGHT DIMMER SWITCH ASSEMBLY HIGH LOW FLASH HOT AT ALL TIMES INPUT CIRCUIT LCD (MULTI) LEFT COWL SIDE J/B (LEFT END OF DASH) LIGHT CONTROL SWITCH LT GRN WIRE MICRO COMPUTER MPX OFF TAIL ORG/ WIRE POWER SUPPLY CIRCUIT RED WIRE RED/BLU WIRE RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGH END OF DASH) RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT MAIN BODY ECU TAIL WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY

1 2 3 4 5 6 7 8 9 10 11 12 13 14 TX- TX+ ILL+ IG+ BLK WIRE BRN WIRE DOOR LOCKS, ANTI-THEFT SYSTEMS ENGINE ROOM R/B 1 (RIGHT REAR FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR ACC HOT IN ON OR START RIGHT COWL SIDE J/B ECU- (RIGHT END IG RH OF DASH) FUSE INTEGRATION CONTROL, PANEL ASSEMBLY LEFT COWL SIDE J/B (LEFT END OF DASH) LT BLU WIRE LT GRN WIRE MPX-B FUSE OF ENGINE COMPT) NAVIGATION, SOUND SYSTEMS INTERIOR LIGHTS SYSTEM ORG/ WIRE PAON P-AB PNK PBEW WIRE RED WIRE SEUC ILL- SUPPLEMENTAL RESTRAINTS SYSTEM VIO WIRE WARNING SYSTEMS WHT WIRE WHT/BLK WIRE

BLK WIRE BLU WIRE BLU/RED WIRE BRAKE ACTUATOR ASSEMBLY (LEFT REAR OF ENGINE COMPT) COMPUTER DATA LINES SYSTEM DOWN ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) FR DOOR LH FUSE GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HEADLIGHT DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES JUNCTION JUNCTION CONNECTOR LEFT COWL SIDE J/B (LEFT END OF DASH) LH-IG 1 RELAY LH-IG FUSE LONG LT GRN WIRE MSW NETWORK GATEWAY ECU (RIGHT END OF DASH) PARK/ NEUTRAL POSITION SWITCH (TRANSMISSION ASSEMBLY) PNK 1 2 3 WIRE PNK WIRE RED WIRE SHORT SWITCH TILT, TELESCOPIC WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL 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

1 6 MPX+ 13 14 COMPUTER DATA LINES SYSTEM CANL CANH 2 57 56 39 19 18 40 CANL REV SPD CA+ V- V+ CGND 3 2 1 4 CGND CV+ CV- CB+ 34 19 PNK PNK WIRE 5 17 PNK +S SI WIRE 55 1 PKB CANH ASSEMBLY BACK BLK WIRE BLU WIRE BLU/RED WIRE BRAKE ACTUATOR ASSEMBLY (LEFT REAR OF ENGINE COMPT) BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM CANH CANL DCM TELEMATICS TRANSCEIVER (RIGHT SIDE OF DASH) ECU-IG RH FUSE ENGINE CONTROL MODULE (ECM) GRN WIRE GRN/BLK WIRE GRY WIRE HOT AT ALL TIMES IG BKUP LH-IG FUSE INPUT CIRCUIT LCD (MULTI) LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT MAIN BODY ECU LT BLU WIRE MICRO COMPUTER MPX MULTI-MEDIA MODULE RECEIVER NCA WIRE PARK/ NEUTRAL POSITION SWITCH ASSEMBLY PARKING BRAKE SWITCH (TOP OF PARKING BRAKE LEVER) PNK SPDP WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RED WIRE RELAY RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT MAIN BODY ECU STEREO COMPONENT AMPLIFIER (RIGHT REAR OF TRUNK) TELEVISION CAMERA ASSEMBLY (REAR OF TRUNK LID) TRANSMISSION ASSEMBLY VIO WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

14 25 21 CAN L CAN H BZ 23 13 22 8 9 LRRD IGB LRDD CANH CANL PNK WIRE 3 5 4 LRDD IGB LRRD 4 3 2 IG CANH CANL PNK WIRE BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BRAKE ACTUATOR ASSEMBLY (LEFT REAR OF ENGINE COMPT) BRN WIRE BUZZER CAN-H- CAN-L- COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DISTANCE CONTROL ECU (BEHIND LEFT SIDE OF DASH) ECU-IG LH FUSE GBT GND PS VPS GBT IG DIA FSR+ FSR- BSW BGND GPS BT VBT GPS GRN WIRE GRY WIRE HOT AT ALL TIMES IG+ ES INPUT CIRCUIT LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT COWL SIDE J/B (LEFT END RELAY OF DASH) LT GRN WIRE MICRO COMPUTER MILLIMETER WAVE RADAR SENSOR (BEHIND CENTER OF FRONT GRILLE) MPX+ MPX- OCCUPANT DETECTION ECU (UNDER FRONT PASSENGER'S SEAT) OCCUPANT DETECTION SENSOR (UNDER FRONT PASSENGER'S SEAT) ORG/ WIRE PBLT PNK VBT WIRE PNK WIRE POWER SUPPLY CIRCUIT RED WIRE SEAT BELT TENSION SENSOR (BASE OF RIGHT "B" PILLAR) SIDE OF DASH) SKID CONTROL BUZZER ASSEMBLY (W/ DYNAMIC RADAR CRUISE CONTROL) (BEHIND LEFT SRS IND STEERING SENSOR (UNDER LEFT SIDE OF DASH) VPS WHT WIRE WHT/BLK WIRE YAW RATE SENSOR (UNDER CENTER CONSOLE) YEL WIRE YEL/BLK WIRE