Lexus IS III (2013-2016) micro computer Wiring diagrams

24 25 CANL CANH 36 37 38 39 40 SWIL 7 6 IMO IMI ACCD BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CTSW SLR+ DOME +B DOOR IND EFII EFIO ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) FUSE GAUGE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START ID CODE BOX (CENTER OF DASH) IGN FUSE IND INDS INDW INPUT CIRCUIT J/C LEFT COWL SIDE J/B (LEFT END OF DASH) LIN LT BLU WIRE LT GRN WIRE MASTER MICRO COMPUTER MICRO COMPUTER (SUB) MPX MULTI-INFORMATION DISPLAY ORG/ WIRE PNK SPD WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWER DISTRIBUTION SYSTEM STARTING/CHARGING SYSTEM POWER SOURCE CONTROL ECU (RIGHT SIDE OF DASH) POWER SUPPLY CIRCUIT RED WIRE RED/BLK WIRE RIGHT COWL SIDE J/B RIGHT COWL SIDE J/B (RIGHT SIDE (RIGHT END OF DASH) OF DASH) SECURITY FUSE SHIFT INTERLOCK SYSTEM SKSW SLP STARTING/CHARGING SYSTEM STARTING/CHARGING SYSTEM SHIFT INTERLOCK SYSTEM STEERING LOCK ACTUATOR (STEERING COLUMN) STOP SW FUSE (RIGHT END OF DASH) STSW SYSTEM VIO WIRE WHT WIRE WHT/BLK WIRE WHT/RED WIRE 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

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

17 18 SHIELD ANTENNA BACK BLK WIRE BLU WIRE BRN WIRE CA+ CGND SHIELD COMBINATION METER COMPUTER DATA LINES SYSTEM DISP OFF HOOK DISP VOICE FUSE GPS ANTENNA GRN WIRE GRY WIRE GVIF HOT AT ALL TIMES HOT W/ HOT W/ ACC RELAY ENERGIZED ILL ILL INPUT CIRCUIT INSTRUMENT CLUSTER SYSTEM J/C 27 (BEHIND LEFT SIDE OF DASH) J/C 70 (BEHIND RIGHT SIDE OF DASH) LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT STEERING PAD SWITCH LH ECU-IG FUSE LT BLU WIRE LT GRN WIRE MAIN BODY ECU MAIN BODY ECU PKB IND MICRO COMPUTER MIN MIN+ SGND MACC SHIELD MPX MSSL MULTI-MEDIA MODULE RECEIVER ASSEMBLY NCA WIRE ON HOOK ORG/ WIRE PARKING BRAKE SWITCH (TOP OF PARKING BRAKE LEVER) PKB SPD REV PNK WIRE RAD 3 FUSE RED WIRE RH ECU-IG FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT STEERING PAD SWITCH SEEK SEEK- MODE SHIELD SPIRAL CABLE (UNDER STEERING WHEEL) STEERING PAD SWITCH SWG TV 1 FUSE V+ V- VIO WIRE VMTF VOL (-) W/ LEXUS ENFORM W/O LEXUS ENFORM WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

24 25 CANL CANH 36 37 38 39 40 SWIL 7 6 IMO IMI ACCD BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM CTSW SLR+ DOME +B DOOR IND EFII EFIO ENGINE CONTROL MODULE (ECM) (LEFT SIDE OF ENGINE COMPT) FUSE GAUGE FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START ID CODE BOX (CENTER OF DASH) IGN FUSE IND INDS INDW INPUT CIRCUIT J/C LEFT COWL SIDE J/B (LEFT END OF DASH) LIN LT BLU WIRE LT GRN WIRE MASTER MICRO COMPUTER MICRO COMPUTER (SUB) MPX MULTI-INFORMATION DISPLAY ORG/ WIRE PNK SPD WIRE PNK WIRE POWER DISTRIBUTION SYSTEM POWER DISTRIBUTION SYSTEM STARTING/CHARGING SYSTEM POWER SOURCE CONTROL ECU (RIGHT SIDE OF DASH) POWER SUPPLY CIRCUIT RED WIRE RED/BLK WIRE RIGHT COWL SIDE J/B RIGHT COWL SIDE J/B (RIGHT SIDE (RIGHT END OF DASH) OF DASH) SECURITY FUSE SHIFT INTERLOCK SYSTEM SKSW SLP STARTING/CHARGING SYSTEM STARTING/CHARGING SYSTEM SHIFT INTERLOCK SYSTEM STEERING LOCK ACTUATOR (STEERING COLUMN) STOP SW FUSE (RIGHT END OF DASH) STSW SYSTEM VIO WIRE WHT WIRE WHT/BLK WIRE WHT/RED 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

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

ACCELERATOR POSITION SENSOR (TOP OF ACCELERATOR PEDAL ASSEMBLY) BLK WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DOME +B GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/YEL WIRE HOT IN ON OR START LEFT COWL SIDE J/B (LEFT END LH-IG FUSE OF DASH) INPUT LCD CIRCUIT (MULTI) LCD (SHIFT POSITION) MASTER IND MICRO COMPUTER MPX ORG/ WIRE PNK WIRE PNK/BLU WIRE POWER SUPPLY CIRCUIT RED WIRE RED/BLK WIRE RIGHT COWL SIDE J/B (RIGHT END OF DASH) SNOW IND SPORT IND STARTING/ CHARGING SYSTEM THROTTLE BODY ASSEMBLY (TOP OF ENGINE) WHT WIRE WHT/BLK WIRE YEL WIRE