Lexus IS III (2013-2016) junction Wiring diagrams

+BM 17 12 13 CCHG 21 13 14 15 TC CANL CANH CCS 24 16 SPD LGND 29 20 23 28 21 22 1 VPA EPA VCPA 56 34 PNK WIRE 6 7 PNK WIRE 8 7 SFTU SFTD BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) EFI FUSE EFI MAIN RELAY ENGINE ROOM ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) ETCS FUSE R/B 2 (LEFT SIDE OF ENGINE COMPT) GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT W/ LH-IG 1 RELAY ENERGIZED IGN FUSE JUNCTION JUNCTION CONNECTOR LEFT COWL SIDE J/B LH-IG FUSE (LEFT END OF DASH) LT GRN WIRE M- M+ ETA NCA WIRE ORG/ WIRE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (TRANSMISSION ASSEMBLY) PNK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RELAY ENERGIZED STOP LIGHT SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) STOP SW FUSE THROTTLE BODY ASSEMBLY (TOP OF ENGINE) VCTA VTA VIO WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

3 1 2 4 CCS ILL- ILL+ ECC 6 7 PNK WIRE BLK WIRE BRN WIRE CRUISE CONTROL MAIN SWITCH CRUISE CONTROL SWITCH CRUISE DISTANCE SWITCH ASSEMBLY GRN WIRE GRY WIRE HOT W/ LH-IG 2 RELAY ENERGIZED ECU- SIDE J/B IG LH (LEFT FUSE END OF DASH) JUNCTION JUNCTION CONNECTOR LEFT COWL LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT PADDLE SHIFT SWITCH MODE ON OFF ORG/ WIRE PADDLE SHIFT SWITCH PNK WIRE RED WIRE RED/BLK WIRE RIGHT PADDLE SHIFT SWITCH SPIRAL CABLE (UNDER STEERING WHEEL) STEERING PAD SWITCH ASSEMBLY TRANSMISSION FLOOR SHIFT ASSEMBLY VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRN WIRE

1 2 3 4 5 LGND SGND LRDD LRRD IGB BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN WIRE CIRCUIT COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CRUISE IND DISTANCE CONTROL ECU (BEHIND LEFT SIDE OF DASH) DOME +B ENGINE ROOM GRN/RED WIRE GRY WIRE HOT AT ALL TIMES IGB INPUT CIRCUIT J/C JUNCTION JUNCTION CONNECTOR LCD (MULTI) LRDD LRRD LT GRN WIRE MICRO COMPUTER MILLIMETER WAVE RADAR SENSOR (BEHIND CENTER OF FRONT GRILLE) MODE MPX MPX-B FUSE R/B 1 (RIGHT REAR OF ENGINE COMPT) ORG/ WIRE PNK WIRE RED WIRE RED/BLK WIRE RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) GAUGE FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) SGND SPEEDOMETER STEERING SENSOR (UNDER LEFT SIDE OF DASH) SUPPLY POWER VIO WIRE WHT WIRE WHT/BLK WIRE YAW RATE SENSOR (UNDER CENTER CONSOLE) YEL/GRN WIRE

+BM 21 13 14 15 TC CANL CANH CCS 29 20 23 28 21 22 1 VPA EPA VCPA BLK WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ECM (ENGINE CONTROL MODULE) (LEFT FRONT OF ENGINE COMPT) EFI FUSE EFI MAIN RELAY ENGINE ROOM ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) ETCS FUSE R/B 2 (LEFT SIDE OF ENGINE COMPT) GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT W/ LH-IG 1 RELAY ENERGIZED HOT W/ RH-IG 1 RELAY ENERGIZED IGN FUSE JUNCTION JUNCTION CONNECTOR LEFT COWL SIDE J/B LH-IG FUSE (LEFT END OF DASH) LT GRN WIRE M- M+ ETA NCA WIRE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (TRANSMISSION ASSEMBLY) PNK WIRE PNK/BLU WIRE RED WIRE RED/BLK WIRE RELAY ENERGIZED RH-IG FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) SFTD SFTU STOP LIGHT SWITCH (TOP OF BRAKE PEDAL ASSEMBLY) STOP SW FUSE THROTTLE BODY ASSEMBLY (TOP OF ENGINE) VCTA VTA VIO WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

BLK WIRE BRN WIRE CIRCUIT COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CRUISE CONTROL MAIN SWITCH CRUISE CONTROL SWITCH CRUISE IND DOME +B ENGINE ROOM GRN/RED WIRE GRY WIRE HOT AT ALL TIMES INPUT CIRCUIT JUNCTION JUNCTION CONNECTOR LCD (MULTI) LEFT PADDLE SHIFT SWITCH LT GRN WIRE MICRO COMPUTER MPX MPX-B FUSE R/B 1 (RIGHT REAR OF ENGINE COMPT) ON OFF ORG/ WIRE PADDLE SHIFT SWITCH PNK WIRE RED WIRE RED/BLK WIRE RELAY ENERGIZED RIGHT COWL SIDE J/B (RIGHT END OF DASH) GAUGE FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT PADDLE SHIFT SWITCH SPEEDOMETER SPIRAL CABLE (UNDER STEERING WHEEL) STEERING PAD SWITCH ASSEMBLY SUPPLY POWER TRANSMISSION FLOOR SHIFT ASSEMBLY VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRN WIRE

A/F RELAY BLK WIRE BRAKE ACTUATOR ASSEMBLY BRAKE FLUID LEVEL WARNING SWITCH (BRAKE MASTER CYLINDER RESERVOIR ASSEMBLY) BRAKE PEDAL LOAD SENSING SWITCH COMPRESSOR LEVEL ASSEMBLY WARNING SWITCH ASSEMBLY EFI 2 RELAY EFI MAIN RELAY ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 2 (LEFT SIDE OF ENGINE COMPT) FRONT BLOWER W/ FAN MOTOR SUB- ASSEMBLY FRONT CONTROLLER FRONT WINDSHIELD WIPER WIPER DEICER MOTOR (WINDSHIELD ASSEMBLY GLASS) HEADLIGHT LEVELING ECU ASSEMBLY JUNCTION JUNCTION CONNECTOR KICK DOWN SWITCH ASSEMBLY LEFT SIDE TURN SIGNAL BRAKE LIGHT ACTUATOR ASSEMBLY ASSEMBLY NOISE FILTER (GHOST BUSTER) POWER STEERING ECU ASSEMBLY RELAY ST CUT RELAY STEREO COMPONENT AMPLIFIER ASSEMBLY TRANSMISSION ECM CONTROL (ENGINE ECU CONTROL ASSEMBLY MODULE) VVT LH RELAY VVT RH RELAY W/O NAVIGATION W/ NAVIGATION WHT/BLK WIRE WINDSHIELD HEADLIGHT WASHER CLEANER MOTOR, CONTROL PUMP RELAY ASSEMBLY WIRELESS DOOR LOCK BUZZER

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

ABS 2 FUSE AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/WHT WIRE BLU WIRE CDS FUSE COOLING FANS SYSTEM D/C CUT FUSE DEFOG FUSE DEFOGGER SYSTEM DOME FUSE ENGINE ROOM FROM E/G-B J/B 1 FUSE (RIGHT REAR OF (DIAGRAM ENGINE COMPT) 1 OF 5) ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) FAN-2 FUSE FROM FAN 1 FUSE (DIAGRAM 1 OF 5) FROM RAD 2 FUSE (DIAGRAM 1 OF 5) GRN WIRE HEAD LP RELAY HEATER FUSE INSTRUMENT CLUSTER, DOOR LOCKS, INTERIOR LIGHTS, MIRRORS SYSTEMS JUNCTION LH J/B-AM FUSE MAIN FUSE MPX-B FUSE NOISE FILTER (ENGINE ROOM R/B 1) B+ ORG/ WIRE RED WIRE RH J/B-AM FUSE TO IG 2 MAIN FUSE (DIAGRAM 3 OF 5) TO LEFT COWL SIDE J/B (DIAGRAM 4 OF 5) TO RIGHT COWL SIDE J/B (DIAGRAM 4 OF 5) WHT WIRE YEL WIRE

ACCD BATB FR DOOR RH FUSE BLK WIRE BLU WIRE CRUISE CONTROL, ENGINE CONTROLS, TRANSMISSIONS SYSTEMS EFI 2 RELAY EFI FUSE EFI MAIN RELAY ENGINE CONTROLS, TRANSMISSIONS SYSTEMS ENGINE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) ENGINE ROOM R/B 1 (RIGHT REAR OF ENGINE COMPT) ENGINE ROOM R/B 2 (LEFT SIDE OF ENGINE IG 2 COMPT) FUSE ENGINE SWITCH F/PMP FUSE FROM D/C CUT FUSE (DIAGRAM 2 OF 5) FUSE GAUGE FUSE GRN WIRE GRN/RED WIRE IG 2 MAIN FUSE IG 2 RELAY IGN FUSE INJ FUSE INJ RELAY INSTRUMENT CLUSTER SYSTEM JUNCTION JUNCTION CONNECTOR LH J/B-B FUSE LT BLU WIRE LT GRN WIRE LT LT MIRRORS, MEMORY, POWER WINDOWS SYSTEMS NAVIGATION SYSTEM ORG/ WIRE P/I-B FUSE PNK WIRE POWER SOURCE CONTROL ECU (BEHIND RIGHT SIDE OF DASH) POWER WINDOWS SYSTEM RED WIRE RH J/B-B FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT MAIN BODY ECU RR DOOR RH FUSE SHIFT INTERLOCK SYSTEM SUPPLEMENTAL RESTRAINTS SYSTEM TO LEFT COWL SIDE J/B (DIAGRAM 5 OF 5) TO TO RIGHT COWL RIGHT COWL SIDE J/B SIDE J/B (DIAGRAM (DIAGRAM 5 OF 5) 5 OF 5) WHT WIRE

ANTI-THEFT SYSTEM BLK WIRE BLU WIRE BRN WIRE CIG FUSE CIGARETTE LIGHTER ASSEMBLY ECU-IG RH FUSE FR DOOR LH FUSE FR S/ HTR RH FUSE FROM ENGINE ROOM J/B 1 (DIAGRAM 3 OF 5) FROM OBD FUSE (DIAGRAM 4 OF 5) FROM POWER SOURCE CONTROL ECU (DIAGRAM 3 OF 5) FUSE GRN WIRE JUNCTION LEFT COWL SIDE J/B (LEFT END OF DASH) LT GRN WIRE MEMORY SYSTEMS MEMORY, POWER WINDOWS SYSTEMS MIRRORS, MEMORY, DOOR LOCKS, ANTI-THEFT SYSTEMS NAVIGATION, SOUND SYSTEMS ORG/ WIRE PNK WIRE POWER OUTLET SOCKET ASSEMBLY POWER WINDOWS SYSTEM PWR OUTLET FUSE PWR POINT RELAY RELAY RH-IG 1 RELAY RH-IG FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT MAIN BODY ECU RR DOOR LH FUSE SEATS SYSTEM SEATS, CRUISE CONTROL, TRANSMISSIONS, NAVIGATION, DEFOGGER SYSTEMS SECURITY FUSE TO LEFT COWL SIDE J/B (DIAGRAM 4 OF 5) WHT WIRE YEL WIRE