Lexus IS III (2013-2016) left main body ecu Wiring diagrams

+IG BLK WIRE BLU WIRE BRN WIRE CERTIFICATION ECU (RIGHT SIDE OF TRUNK) COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DOME+B ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) GAUGE FUSE GND TR TL GRN RED/ WIRE GRN WIRE GRN/ LT WIRE GRN/RED WIRE GRY WIRE HAZARD SWITCH HEAD AUTO HEADLIGHT DIMMER SWITCH ASSEMBLY HOT AT ALL TIMES HOT W/ LH-IG 1 RELAY ENERGIZED INPUT CIRCUIT JUNCTION LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT MAIN BODY ECU LH TURN IND LH-IG FUSE LIGHT CONTROL SWITCH LT BLU WIRE LT GRN WIRE MICRO COMPUTER MPX+ MPX- MPX-B FUSE NETWORK GATEWAY ECU (RIGHT END OF DASH) OFF OFF TAIL ORG/ WIRE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) POWER SUPPLY CIRCUIT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY RED GRN/ WIRE RED WIRE RELAY ENERGIZED RH TURN IND RIGHT COWL SIDE J/B (RIGHT END OF DASH) TAIL TAIL IND (EXCEPT USA) TURN SWITCH WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YEL WIRE

1 3 2 SIG ES MPX 21 39 36 37 40 23 IG GND MPX AUTO BLK WIRE BLU WIRE BLU/ORG WIRE BRN WIRE CIRCUIT INPUT COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM WINDSHIELD WASHER MOTOR, PUMP ASSEMBLY (WASHER ENGINE ROOM ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) FR WIP FUSE FRONT CONTROLLER GAUGE FUSE GRN WIRE GRN/RED WIRE GRY WIRE HEAD HEADLAMP WASHER CIRCUIT HOT AT ALL TIMES HOT IN ON OR START IG+ 12 13 POWER SUPPLY ES J/B 2 (LEFT SIDE OF ENGINE COMPT) LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT MAIN BODY ECU LEVEL WARNING SWITCH LH ECU-IG FUSE LH-IG 2 RELAY LT GRN WIRE MICRO COMPUTER MIST MPX+ MPX- 6 18 MPX-B FUSE OFF ORG/ WIRE OVERHEAD MODULE (CENTER FRONT OF ROOF) PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) (UNDER CENTER CONSOLE) RAIN SENSOR (TOP CENTER OF FRONT WINDSHIELD) RED/BLU WIRE RESERVOIR) RH ECU-IG FUSE RH-IG 1 RELAY RIGHT COWL SIDE J/B (RIGHT END OF DASH) S/S +2 S/M SWITCH VIO WIRE WASH RELAY WASHER WASHER FUSE WHT WIRE WHT/BLK WIRE WIG WINDSHIELD WIPER MOTOR ASSEMBLY (BELOW LOWER LEFT SIDE OF WINDSHIELD) WINDSHIELD WIPER SWITCH ASSEMBLY WIPER SWITCH YEL WIRE

A/C AMPLIFIER BLK WIRE BLK/ WHT WIRE CENTER AIR BAG SENSOR ASSEMBLY CLOCK ASSEMBLY COMBINATION METER CONSOLE BOX ILLUMINATION LIGHT ASSEMBLY DATA LINK CONNECTOR (DLC) 3 DCM (TELEMATICS TRANSCEIVER) FROM RIGHT COWL SIDE J/B (DIAGRAM 3 OF 6) FRONT WIPER DEICER SWITCH GLOVE BOX LIGHT ASSEMBLY INTEGRATION CONTROL, PANEL ASSEMBLY JUNCTION CONNECTOR LEFT COWL SIDE J/B (LEFT END LEFT MAIN BODY ECU LEFT ROOF CLOSE SWITCH (LEFT REMOVABLE ROOF AUXILIARY CATCH ASSEMBLY) MULTIPLEX TILT, TELESCOPIC ECU NETWORK GATEWAY ECU OF DASH) PATTERN SELECT SWITCH ASSEMBLY 1 RELAY SATELLITE SWITCH SET SEAT HEATER SWITCH SHIFT LOCK CONTROL ECU STEERING LOCK ACTUATOR STEERING SENSOR STOP LAMP CONTROL RELAY TIRE PRESSURE WARNING ECU TURN SIGNAL FLASHER VSC OFF SWITCH W/ NAVIGATION W/O NAVIGATION WHT WIRE WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YAW RATE SENSOR

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

ACTY BDCY BLU WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DOOR DRIVER'S DOOR FR DOOR LH FUSE GRN WIRE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES HOT IN ON OR START J/C LCT LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT DOME LEFT MAIN BODY ECU LH-IG FUSE LIGHT LPSW LT GRN WIRE LUGGAGE ELECTRICAL KEY MAP LIGHT ASSEMBLY MPXB ORG/ WIRE RED WIRE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT DOME SLIDING ROOF CONTROL ECU (CENTER FRONT OF TRUNK) SWITCH (CENTER REAR OF TRUNK) TURN SIGNAL FLASHER (LEFT CENTER OF DASH) VIO WIRE W/ MEMORY W/O MEMORY WHT WIRE WHT/BLK WIRE

1 2 3 PNK WIRE 4 5 6 7 8 9 PNK WIRE BLK WIRE BLU WIRE BLU/RED WIRE BRN WIRE CLG CLGB COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DATA DOME +B DOOR CONTROL RECEIVER (CENTER FRONT OF TRUNK) ECU-IG RH FUSE FUSE GRN WIRE GRN/RED WIRE HOT AT ALL TIMES HOT W/ ACC RELAY ENERGIZED INPUT CIRCUIT J/C LCD (MULTI) LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT DOOR ELECTRICAL KEY OSCILLATOR (FRONT LEFT DOOR) LEFT MAIN BODY ECU LH-IG 1 RELAY LH-IG FUSE LT GRN WIRE MASTER IND MICRO COMPUTER MPX MPXB ORG/ WIRE OUTSIDE LEFT FRONT DOOR HANDLE ASSEMBLY PARK/ NEUTRAL POSITION SWITCH (TRANSMISSION ASSEMBLY) PNK WIRE POWER SUPPLY CIRCUIT RED WIRE RH-IG 1 RELAY RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT FRONT DOOR ELECTRICAL KEY OSCILLATOR (RIGHT FRONT DOOR) RIGHT MAIN BODY ECU RSSI SEL SENS SGT TRG+ 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

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

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