Lexus IS III (2013-2016) relay Wiring diagrams

+ECU 5 6 PNK WIRE BLK WIRE BLU WIRE BRN WIRE DIODE (A/T SHIFT) (BEHIND LEFT SIDE OF DASH) FA (LEFT REAR OF ENGINE) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES IG+ PNK WIRE ILL ILL INSTRUMENT PANEL J/B (LEFT END OF DASH) J/C 1 (LEFT SIDE OF ENGINE COMPT) J/C 4 (LEFT SIDE OF ENGINE COMPT) J/C 5 (LEFT SIDE OF ENGINE COMPT) KA (LEFT KICK PANEL) LEFT PADDLE LT GRN WIRE ORG/ WIRE PAD SWITCH PARK/NEUTRAL POSITION SWITCH ASSEMBLY (RIGHT SIDE OF TRANSMISSION) PNK WIRE RED WIRE RELAY RELAY ENERGIZED RIGHT STEERING SDN SFTD PNK WIRE SFTU SHIFT POSITION INDICATOR SHIFT SWITCH SHIFT SWITCH RIGHT PADDLE SPIRAL CABLE W/ SUB-ASSEMBLY ECC (UNDER STEERING WHEEL) STARTING/ CHARGING SYSTEM STEERING PAD SWITCH ASSEMBLY SUP SWITCH WIRE 1 TRANSMISSION CONTROL SWITCH (BASE OF SELECTOR LEVER) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

+ECU 2 3 PNK WIRE BLK WIRE BLU WIRE BRN WIRE DIODE (A/T SHIFT) (BEHIND LEFT SIDE OF DASH) FA (TOP REAR OF ENGINE) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES IG+ PNK WIRE ILL ILL INSTRUMENT PANEL J/B (LEFT END OF DASH) J/C 1 (LEFT SIDE OF ENGINE COMPT) J/C 4 (LEFT SIDE OF ENGINE COMPT) J/C 5 (LEFT SIDE OF ENGINE COMPT) KA (LEFT KICK PANEL) LEFT PADDLE LT GRN WIRE ORG/ WIRE PAD SWITCH PARK/NEUTRAL POSITION SWITCH ASSEMBLY (RIGHT SIDE OF TRANSMISSION) PNK PNK WIRE PNK WIRE RED WIRE RELAY RELAY ENERGIZED RIGHT STEERING SDN SELECTOR LEVER SFTD PNK WIRE SFTU SHIFT POSITION INDICATOR SHIFT SWITCH SHIFT SWITCH RIGHT PADDLE SPRIAL CABLE W/ SUB-ASSEMBLY ECC (UNDER STEERING WHEEL) STARTING/ CHARGING SYSTEM STEERING PAD SWITCH ASSEMBLY SUP SWITCH WIRE 1 TRANSMISSION CONTROL SWITCH (BASE OF VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

A/C FUSE BLK WIRE BLLH BLRH BRN WIRE CTB ECU-IG LH FUSE FR S/ HTR LH FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE LH J/B-AM FUSE ROOM J/B 1 (RIGHT REAR OF ENGINE COMPT) LEFT COWL SIDE J/B (LEFT END OF DASH) LEFT SEAT BACK CLIMATE CONTROL BLOWER (DRIVER'S SEAT BACK) LEFT SEAT CUSHION CLIMATE CONTROL BLOWER (DRIVER'S SEAT CUSHION) LEFT SEAT HEATER CONTROL SUB-ASSEMBLY LT BLU WIRE LT GRN WIRE ORG/ WIRE PANEL FUSE PNK WIRE RED WIRE RELAY RV ILL- 2 3 PNK WIRE SEAT BACK) SEAT CUSHION) SEAT HEATER CONTROL SEAT HEATER SWITCH SIGN SVSG SWL TAIL RELAY THERMISTOR THL VIO WIRE 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

2 4 5 6 2 4 5 6 EC BATT 3.5L, 2.5L 4 3 9 19 26 27 30 31 32 33 34 35 STP TC ACCELERATOR POSITION SENSOR (ACCELERATOR PEDAL ASSEMBLY) (LEFT SIDE OF DASH) ANTI-LOCK BRAKES SYSTEM BLK WIRE BLK/BLU WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM CONTROL STEERING RIGHT DISTANCE CRUISE CONTROL MAIN SWITCH CRUISE CONTROL SWITCH EFI FUSE EFI MAIN RELAY ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE ROOM J/B 2 (LEFT SIDE OF ENGINE COMPT) GAUGE FUSE GRN WIRE GRN/BLK WIRE GRN/RED WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES IGN FUSE LT GRN WIRE MODE MREL IGSW CCHG SPD CANL CANH LGND ORG/ WIRE PAD SWITCH PADDLE SHIFT SWITCH PNK SFTD WIRE PNK WIRE PNK/BLU WIRE POWER SOURCE CONTROL ECU (RIGHT SIDE OF DASH) RED WIRE RED/BLK WIRE RELAY RELAY ENERGIZED RH-IG FUSE RIGHT COWL SIDE J/B (RIGHT END OF DASH) RIGHT PADDLE SHIFT SWITCH SFTU CCS SHIFT SWITCH LEFT PADDLE SPIRAL CABLE SUB- ASSEMBLY (UNDER STEERING WHEEL) STEERING PAD SWITCH ASSEMBLY STOP LAMP SWITCH (LEFT SIDE OF DASH) VIO WIRE VPA EPA VCPA WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/GRN WIRE

+BM 2.5L BLK WIRE BLU WIRE BRN WIRE COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM CRUISE IND DOME +B ECU-IG LH FUSE ENGINE CONTROLS SYSTEM ENGINE ROOM R/B 2 (LEFT SIDE OF ENGINE COMPT) ETCS FUSE GRN/RED WIRE GRY WIRE HOT AT ALL TIMES HOT AT ALL TIMES ENGINE ROOM R/B 1 MPX-B (RIGHT FUSE REAR OF ENGINE COMPT) INPUT CIRCUIT LEFT COWL SIDE J/B LEFT COWL SIDE J/B (LEFT END OF DASH) LH-IG FUSE LT GRN WIRE MICRO COMPUTER MPX NCA WIRE ORG/ WIRE PNK WIRE POWER SUPPLY RED WIRE RELAY RIGHT COWL SIDE J/B (RIGHT END OF DASH) SPEEDOMETER THROTTLE W/ MOTOR BODY ASSEMBLY (REAR OF ENGINE) TRANSMISSION CONTROL SWITCH (BELOW CENTER CONSOLE) VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/GRN WIRE

A/F RELAY BLK/RED WIRE BRAKE ACTUATOR ASSEMBLY BRAKE FLUID LEVEL WARNING SWITCH BRAKE PEDAL LOAD SENSING SWITCH COOLING FAN MOTOR 1 EFI MAIN RELAY ENGINE COMPRESSOR CONTROL ASSEMBLY MODULE W/ MAGNET (ECM) CLUTCH ENGINE HOOD COURTESY SWITCH ENGINE ROOM J/B 2 (LEFT SIDE EFI 2 OF ENGINE RELAY COMPT) ENGINE ROOM R/B 2 FAN 2 RELAY (LEFT SIDE OF ENGINE COMPT) BRAKE ACTUATOR ASSEMBLY FRONT CONTROLLER FRONT WIPER DEICER (WINDSHIELD GLASS) HEADLAMP LEVELING ECU HEADLIGHT WINDSHIELD CLEANER WASHER CONTROL MOTOR RELAY JUNCTION JUNCTION CONNECTOR LEFT FOG LIGHT ASSEMBLY LEFT HEADLIGHT ASSEMBLY LEVEL WARNING SWITCH ASSEMBLY RELAY RIGHT FOG LIGHT ASSEMBLY RIGHT HEADLIGHT ASSEMBLY W/ HID W/O HID WHT/ BLK WIRE WHT/BLK WIRE WINDSHIELD WIPER MOTOR WIRELESS DOOR LOCK BUZZER

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)

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

12 13 14 15 PNK WIRE BLK WIRE BLU WIRE BRN WIRE CAN I/F COMBINATION METER ASSEMBLY COMPUTER DATA LINES SYSTEM DIODE (PARK/NEUTRAL POSITION SWITCH ASSEMBLY) (BEHIND LEFT SIDE OF DASH) DRIVER DISPLAY E.F.I. ENGINE COOLANT TEMPERATURE SENSOR (RIGHT REAR OF ENGINE) ECU-ACC FUSE ENGINE OIL LEVEL SENSOR (BOTTOM RIGHT OF ENGINE) ENGINE OIL PRESSURE SWITCH (FRONT OF ENGINE) FB (RIGHT REAR OF ENGINE COMPT) FUEL PRESSURE SENSOR (REAR OF ENGINE) FUSE GRN WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER SYSTEM INSTRUMENT PANEL J/B (LEFT END OF DASH) J/C 1 (LEFT SIDE OF ENGINE COMPT) J/C 5 (LEFT SIDE OF ENGINE COMPT) KC (RIGHT KICK PANEL) LED DRIVER LOIL LT GRN WIRE OILW PNK 11 12 WIRE PNK WIRE RED WIRE RELAY RELAY ENERGIZED SHIELD SHIELD 27 28 SPEAKER TELLTALES VIO WIRE WHT WIRE WHT/BLK WIRE YEL WIRE