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

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

BATB BDCY RCTY BLK WIRE BLU WIRE BRN WIRE COURTESY DCTY DCYL ECU-IG RH FUSE FOOT LAMP FR DOOR RH FUSE GRN WIRE HOT AT ALL TIMES HOT IN ON OR START LCTY LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT DOOR COURTESY LIGHT ASSEMBLY LEFT FRONT DOOR COURTESY SWITCH (LEFT "B" PILLAR) LEFT MAIN BODY ECU LEFT OUTER REARVIEW MIRROR ASSEMBLY LEFT REAR DOOR COURTESY SWITCH (LEFT "C" PILLAR) LGCY LT GRN WIRE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY (CENTER REAR OF LUGGAGE COMPT LID) LUGGAGE COMPARTMENT LIGHT DIODE (LEFT SIDE OF TRUNK) NOISE FILTER (LUGGAGE ROOM LAMP) (LEFT SIDE OF TRUNK) ORG/ WIRE PARKING BRAKE SWITCH (TOP OF PARKING BRAKE LEVER) PCTY PCYL PNK WIRE RCTY RED WIRE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT FRONT DOOR COURTESY LIGHT ASSEMBLY RIGHT FRONT DOOR COURTESY SWITCH (RIGHT "B" PILLAR) RIGHT MAIN BODY ECU RIGHT OUTER REARVIEW MIRROR ASSEMBLY RIGHT REAR DOOR COURTESY SWITCH (RIGHT "C" PILLAR) ROOM LIGHT ASSEMBLY 2 TI, TE FUSE VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

BLK WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BLU/ORG WIRE BRN WIRE ECU-IG LH FUSE ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) FR TAIL FUSE FRONT CONTROLLER GRN WIRE GRN/RED WIRE GRN/YEL WIRE GRY WIRE H-LP UPR FUSE HEADLIGHTS SYSTEM HORN FUSE HORN RELAY HORNS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) MPX-B FUSE HOT IN ON OR START LEFT COWL SIDE J/B (LEFT END OF DASH) INSTRUMENT CLUSTER SYSTEM WIPER/WASHER SYSTEM LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT MAIN BODY ECU LEFT OUTER MIRROR CONTROL ECU LT GRN WIRE OVERHEAD MODULE (CENTER FRONT OF ROOF) POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) RAIN SENSOR (TOP CENTER OF FRONT WINDSHIELD) RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT COWL SIDE J/B (RIGHT END OF DASH) SLIDING ROOF CONTROL ECU (CENTER FRONT OF ROOF) VIO WIRE WHT/BLK WIRE WHT/BLU WIRE WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM

A/C AMPLIFIER ASSEMBLY CENTER AIR BAG SENSOR ASSEMBLY CIGARETTE LIGHTER ASSEMBLY CLOCK ASSEMBLY COMBINATION METER ASSEMBLY CONSOLE BOX ILLUMINATION LIGHT ASSEMBLY CRUISE DISTANCE SWITCH ASSEMBLY DATA LINK CONNECTOR (DLC) 3 DCM (TELEMATICS TRANSCEIVER) FROM RIGHT COWL SIDE J/B (DIAGRAM 3 OF 7) FRONT WIPER DEICER SWITCH GLOVE BOX LIGHT ASSEMBLY INTEGRATION CONTROL, PANEL ASSEMBLY JUNCTION CONNECTOR LEFT COWL SIDE J/B LEFT MAIN BODY ECU MULTIPLEX TILT, TELESCOPIC ECU NETWORK GATEWAY ECU PATTERN SELECT SWITCH ASSEMBLY 1 RELAY SATELLITE SWITCH SET SEAT HEATER SWITCH SHIFT LOCK TIRE CONTROL PRESSURE ECU WARNING SUB- ECU, ASSEMBLY RECEIVER STEERING LOCK ACTUATOR ASSEMBLY STEERING SENSOR STOP LIGHT CONTROL RELAY ASSEMBLY TURN SIGNAL FLASHER ASSEMBLY VSC OFF SWITCH W/ NAVIGATION W/O NAVIGATION WHT/BLK WIRE WINDSHIELD WIPER SWITCH ASSEMBLY YAW RATE SENSOR

13 14 17 ALTL WNG BLK WIRE BLK/ORG WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) GRN WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/RED WIRE H-LP LVL FUSE HEAD LP RELAY HEADLAMP LEVELING MOTOR HEADLAMPS CIRCUIT HEADLIGHT LEVELING ECU (LEFT KICK PANEL) HOT AT ALL TIMES LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT HEIGHT CONTROL SENSOR SUB-ASSEMBLY (LEFT FRONT OF ENGINE COMPT) LEFT HEADLIGHT ASSEMBLY LEFT MAIN BODY ECU LEFT REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY (UNDER LEFT REAR OF VEHICLE) LT BLU WIRE LT GRN WIRE MAIN FUSE ORG/ WIRE PNK WIRE RED WIRE RED/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RELAY ENERGIZED RIGHT HEADLIGHT ASSEMBLY SGF SGR SHFL SHRL SBF SBR SHB SHFL SHG SHRL SPDL SPDR VIO WIRE VIO/GRN WIRE VIO/RED WIRE WHT WIRE WHT/BLK WIRE WNG YEL/RED WIRE

2 1 TX+ TX- 36 38 37 MPX 5 15 ATX+ ATX- PNK WIRE 7 19 TX+ TX- 7 8 TX+ TX- 9 10 TX+ TX- 9 10 TXM+ TXM- BLK WIRE BLU WIRE BRN WIRE CAN (+) CENTER AIR BAG SENSOR (UNDER REAR OF CENTER CONSOLE) ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) FRONT CONTROLLER FRONT DOOR) GRN WIRE GRY WIRE INTEGRATION CONTROL, PANEL ASSEMBLY (W/O NAVIGATION) LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT FRONT POSITION CONTROL ECU, SWITCH (BELOW LEFT SIDE OF DRIVER'S SEAT) LEFT MAIN BODY ECU LEFT OUTER MIRROR CONTROL ECU (LEFT LT BLU WIRE LT GRN WIRE MPX MPXB MULTI- DISPLAY ASSEMBLY MULTI-MEDIA INTERFACE ECU (LOWER RIGHT MULTI-MEDIA MODULE RECEIVER ASSEMBLY ORG/ WIRE OVERHEAD MODULE (CENTER FRONT OF ROOF) PNK 1 2 3 WIRE PNK 7 8 9 WIRE PNK WIRE RADIO RECEIVER ASSEMBLY RAIN SENSOR (TOP CENTER OF FRONT WINDSHIELD) RED WIRE RELAY SEAT BELT CONTROL ECU (W/ DYNAMIC RADAR CRUISE CONTROL) (LEFT SIDE OF TRUNK) SIDE OF DASH) SLIDING ROOF CONTROL ECU (IF EQUIPPED) STEERING SENSOR (UNDER LEFT SIDE OF DASH) STEREO COMPONENT AMPLIFIER (RIGHT REAR OF TRUNK) TRANSMISSION CONTROL ECU (LEFT SIDE OF ENGINE COMPT) VIO WIRE W/ NAVIGATION SYSTEM W/O NAVIGATION W/O NAVIGATION SYSTEM WHT WIRE YAW RATE SENSOR (UNDER CENTER CONSOLE)

A/C FUSE TV 1 FUSE S/ROOF FUSE BLK WIRE BLK/WHT WIRE BLU WIRE BODY COMPUTER SYSTEM COMPUTER DATA LINES SYSTEM ECU-IG LH FUSE ENGINE ROOM J/B 1 (DIAGRAM 2 OF 5) EXTERIOR DEFOGGER LIGHTS SYSTEM SYSTEM EXTERIOR LIGHTS, TRANSMISSIONS, NAVIGATION, CRUISE CONTROL, DOOR LOCKS SYSTEMS FR P/ SEAT LH FUSE FUEL OPN FUSE PSB FUSE MIR HTR FUSE FR P/ SEAT RH FUSE RAD 3 FUSE FR S/ HTR LH FUSE FR WIP FUSE FROM ENGINE ROOM J/B 1 (DIAGRAM 2 OF 5) FROM RIGHT COWL SIDE J/B (DIAGRAM 5 OF 5) GRN WIRE H-LP LVL FUSE IG WIG LEFT MAIN BODY ECU LH-IG 1 RELAY LH-IG 2 RELAY LH-IG FUSE LT BLU WIRE MEMORY SYSTEMS MEMORY, NAVIGATION, SEATS SOUND SYSTEMS SYSTEMS NAVIGATION SYSTEM OBD FUSE ORG/ WIRE PASSIVE DEFOGGER RESTRAINTS SYSTEM SYSTEM PNK WIRE POWER AIR TOPS CONDITIONING SYSTEM SYSTEM RED WIRE RIGHT COWL SIDE J/B (RIGHT END OF DASH) TO PWR POINT RELAY (DIAGRAM 5 OF 5) RIGHT MAIN BODY ECU ALTB SEATS SYSTEM SOUND, NAVIGATION SYSTEMS STOP SW FUSE TAIL RELAY TI, TE FUSE VIO WIRE WHT WIRE WIPER/ DEFOGGER SEATS WASHER SYSTEM SYSTEM SYSTEM YEL WIRE

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