Toyota Prius IV (2015–2019) wiring diagrams

Automatic a/c circuit

Anti-lock brakes circuit

Forced entry circuit Immobilizer circuit

Body control modules circuit

Computer data lines circuit

Cooling fan circuit

Cruise control circuit Dynamic laser cruise control circuit

Defoggers circuit

Electronic power steering circuit

Wiring diagram engine performance 1.8l hybrid, engine controls circuit Wiring diagram engine performance 1.8l hybrid, hybrid system circuit

Backup lamps circuit Exterior lamps circuit

Ground distribution circuit

Headlights circuit

Horn circuit

Instrument cluster circuit

Courtesy lamps circuit Instrument illumination circuit

Blind spot monitoring circuit Lane departure warning circuit Navigation circuit, w/ built-in amplifier Navigation circuit, w/ separate amplifier Parking assistant circuit Telematics circuit

Power distribution circuit

Power door locks circuit

Electrochromic mirror circuit Power mirrors circuit

Heated seats circuit Power seats circuit

Power top/sunroof circuit

Power windows circuit

Radio circuit, w/ built-in amplifier Radio circuit, w/ separate amplifier

Shift interlock circuit

Supplemental restraints circuit

Transmission circuit

Back door opener circuit Fuel door release circuit

Chime circuit Tire pressure monitoring circuit

Front wiper/washer circuit, w/ auto wiper system Front wiper/washer circuit, w/o auto wiper system Rear wiper/washer circuit

A/C AMPLIFIER ASSEMBLY ANTENNA COIL ANTI-LOCK BRAKES SYSTEM BACK DOOR LOCK ASSEMBLY BATTERY COOLING BLOWER ASSEMBLY FRONT HYBRID VEHICLE BATTERY HIGH PITCHED HORN ASSEMBLY HV BATTERY JUNCTION BLOCK ASSEMBLY HV SUPPLY BATTERY ASSEMBLY HYBRID BATTERY TERMINAL BLOCK HYBRID VEHICLE BATTERY IGNITION COIL ASSEMBLY 1 IGNITION COIL ASSEMBLY 2 IGNITION COIL ASSEMBLY 3 IGNITION COIL ASSEMBLY 4 INVERTER BATTERY LOW PITCHED HORN ASSEMBLY MICROPHONE, MICROPHONE AMPLIFIER REAR HYBRID VEHICLE BATTERY STEREO COMPONENT AMPLIFIER ASSEMBLY TELEMATICS TRANSCEIVER W/O LITHIUM ION BATTERY W/ LITHIUM ION BATTERY W/O LITHIUM-ION BATTERY WIRELESS DOOR LOCK BUZZER

BLOWER MOTOR W/ FAN SUB-ASSEMBLY BRAKE ACTUATOR ASSEMBLY COMPRESSOR W/ MOTOR ASSEMBLY ENGINE CONTROLS SYSTEM ENGINE ROOM J/B 1 ENGINE ROOM R/B 1 ENGINE WATER PUMP ASSEMBLY FUEL LID LOCK W/ MOTOR ASSEMBLY LEFT COOLING FAN MOTOR LEFT FRONT DOOR LOCK W/ MOTOR ASSEMBLY LEFT REAR DOOR LOCK W/ MOTOR ASSEMBLY LOWER RIGHT FRONT OF ENGINE) REAR WIPER MOTOR ASSEMBLY RIGHT COOLING FAN MOTOR RIGHT FRONT DOOR LOCK W/ MOTOR ASSEMBLY RIGHT REAR DOOR LOCK W/ MOTOR ASSEMBLY SHIFT CONTROL ACTUATOR ASSEMBLY WINDSHIELD WASHER MOTOR, PUMP ASSEMBLY WINDSHIELD WIPER MOTOR ASSEMBLY

ELECTRICAL KEY ANTENNA GPS ANTENNA INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY 3 RADIO ANTENNA SDARS ANTENNA TELEPHONE ANTENNA

LEFT FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LEFT REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LEFT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RIGHT FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RIGHT FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RIGHT REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RIGHT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY

FORWARD RECOGNITION CAMERA REAR TELEVISION CAMERA ASSEMBLY

DATA LINK CONNECTOR 3 POWER OUTLET SOCKET ASSEMBLY 1 POWER OUTLET SOCKET ASSEMBLY 2

ENGINE CONTROL MODULE

AIR BAG ECU AIR BAG ECU ASSEMBLY BATTERY ECU ASSEMBLY CERTIFICATION ECU CLEARANCE WARNING ECU ASSEMBLY DRIVING SUPPORT ECU ASSEMBLY ECU- DCC 1 FUSE ECU-ACC FUSE ECU-B 1 FUSE ECU-B 2 FUSE ECU-DCC 2 FUSE HYBRID VEHICLE CONTROL ECU MAIN BODY ECU NETWORK GATEWAY ECU OCCUPANT DETECTION ECU POWER STEERING ECU ASSEMBLY SHIFT LOCK CONTROL UNIT ASSEMBLY

ABS 2 FUSE ABS 3 FUSE ABS MTR 1 FUSE ABS MTR 2 FUSE ABS MTR 3 FUSE ABS- MAIN FUSE AMP FUSE BATT FAN FUSE BATT- MAIN FUSE BATT-S FUSE BKUP LP FUSE D/C CUT FUSE D/L FUSE DC/DC FUSE DCM/ MAYDAY FUSE DCM/MAYDAY FUSE DEF FUSE DOME FUSE DOOR BACK FUSE DOOR FUSE DOOR R/L FUSE DOOR R/R FUSE EDU-DCC 2 FUSE EFI 2 FUSE EFI 3 FUSE EFI MAIN FUSE ENG W/PMP FUSE EPS FUSE ETCS FUSE FAN 1 FUSE FAN-2 FUSE FOG FR FUSE FUEL OPN FUSE H-LP LH FUSE H-LP RH FUSE H-LP SHADE FUSE HAZ FUSE HORN FUSE HTR FUSE IGCT 2 FUSE IGCT-IG FUSE INJ FUSE INV W/PMP FUSE J/B-AM FUSE J/B-B FUSE MIR HTR FUSE OBD FUSE P CON MTR FUSE P/OUTLET 1 FUSE P/OUTLET 2 FUSE P/SEAT FUSE PANEL FUSE PCU BUB/ PCU RR FUSE PCU FR FUSE PM IGCT FUSE POWER FUSE RADIO FUSE S/HTR F/L FUSE S/HTR F/R FUSE S/HTR- MAIN FUSE S/ROOF FUSE STOP FUSE TAIL FUSE WASHER FUSE WIPER FUSE WIPER RR FUSE

LEFT HEADLIGHT ASSEMBLY RIGHT HEADLIGHT ASSEMBLY

LEFT FRONT SEAT CUSHION HEATER ASSEMBLY MIRROR HEATER RIGHT FRONT SEAT CUSHION HEATER ASSEMBLY SEAT BACK HEATER SEAT CUSHION HEATER

BLIND SPOT MONITOR INDICATOR INDICATOR LIGHT ASSEMBLY

BACKUP LAMP CIRCUIT EXTERIOR LIGHTS, INTERIOR LIGHTS SYSTEMS LIGHTS SYSTEM

BRAKE BOOSTER PUMP ASSEMBLY FUEL SUCTION TUBE W/ PUMP, GAUGE ASSEMBLY

ACC RELAY ALL DR LOCK RELAY BKUP LP RELAY C/OPN RELAY D DR UNLOCK RELAY DEF RELAY DEG RELAY DOME CUT RELAY DOOR BACK RELAY EFI MAIN RELAY ENG W/PMP RELAY FAN RELAY 1 FAN RELAY 2 FAN RELAY 3 FOG FR RELAY FUEL OPN RELAY H-LP LH RELAY H-LP RH RELAY H-LP SHADE RELAY HORN RELAY HOT W/ ACC RELAY ENERGIZED HOT W/ EFI MAIN RELAY ENERGIZED HOT W/ IGCT RELAY ENERGIZED IGCT RELAY L/D-DR UNLOCK RELAY MAIN RELAY P-CON RELAY P/OUTLET RELAY 2 PRECHARGE RELAY RELAY ENERGIZED TAIL RELAY WINDSHIELD WIPER RELAY ASSEMBLY

A/C EVAPORATOR TEMPERATURE SENSOR ACCELERATOR PEDAL SENSOR AUTOMATIC LIGHT CONTROL SENSOR BATTERY STATE SENSOR ASSEMBLY BATTERY VOLTAGE SENSOR BRAKE PEDAL STROKE SENSOR ASSEMBLY CAM POSITION SENSOR CRANK POSITION SENSOR CRANK POSITION SENSOR SHIELD CURRENT SENSOR E.F.I. ENGINE COOLANT TEMPERATURE SENSOR EFI VACUUM SENSOR ASSEMBLY ENGINE COOLANT TEMPERATURE SENSOR FRONT IN WEIGHT DETECTION SENSOR SUB ASSEMBLY LEFT BLIND SPOT MONITOR SENSOR LEFT DOOR SIDE AIR BAG SENSOR LEFT FRONT AIR BAG SENSOR LEFT FRONT CENTER ULTRASONIC SENSOR LEFT FRONT CORNER ULTRASONIC SENSOR LEFT FRONT SIDE ULTRASONIC SENSOR LEFT FRONT SPEED SENSOR LEFT FRONT SPEED SENSOR SHIELD LEFT REAR AIR BAG SENSOR LEFT REAR CENTER ULTRASONIC SENSOR LEFT REAR CORNER ULTRASONIC SENSOR LEFT REAR SIDE ULTRASONIC SENSOR LEFT REAR SPEED SENSOR LEFT REAR SPEED SENSOR SHIELD LEFT SIDE AIR BAG SENSOR MILLIMETER WAVE RADAR SENSOR ASSEMBLY RAIN SENSOR REAR IN WEIGHT DETECTION SENSOR SUB ASSEMBLY RIGHT BLIND SPOT MONITOR SENSOR RIGHT DOOR SIDE AIR BAG SENSOR RIGHT FRONT AIR BAG SENSOR RIGHT FRONT CENTER ULTRASONIC SENSOR RIGHT FRONT CORNER ULTRASONIC SENSOR RIGHT FRONT SIDE ULTRASONIC SENSOR RIGHT FRONT SPEED SENSOR RIGHT FRONT SPEED SENSOR SHIELD RIGHT REAR AIR BAG SENSOR RIGHT REAR CENTER ULTRASONIC SENSOR RIGHT REAR CORNER ULTRASONIC SENSOR RIGHT REAR SIDE ULTRASONIC SENSOR RIGHT REAR SPEED SENSOR RIGHT REAR SPEED SENSOR SHIELD RIGHT SIDE AIR BAG SENSOR ASSEMBLY SOLAR SENSOR SPIRAL CABLE W/ SENSOR SUB-ASSEMBLY STEERING SENSOR TORQUE SENSOR VAPOR PRESSURE SENSOR YAW RATE SENSOR

LEFT FRONT SPEAKER ASSEMBLY 1 LEFT FRONT SPEAKER ASSEMBLY 2 LEFT REAR SPEAKER ASSEMBLY RIGHT FRONT SPEAKER ASSEMBLY 1 RIGHT FRONT SPEAKER ASSEMBLY 2 RIGHT REAR SPEAKER ASSEMBLY VEHICLE APPROACHING SPEAKER ASSEMBLY

AUTO WIPER SENSITIVITY ADJUSTMENT SWITCH AUTOMATIC HIGH BEAM SWITCH BACK DOOR OPENER SWITCH ASSEMBLY BUCKLE SWITCH COMBINATION SWITCH ASSEMBLY COMBINATION SWITCH ASSEMBLY 2 CRUISE CONTROL MAIN SWITCH CRUISE CONTROL SWITCH DIMMER SWITCH DOOR CONTROL SWITCH ASSEMBLY DOOR LOCK SWITCH DRIVER SIDE AUTO SWITCH DRIVER SIDE DOWN SWITCH DRIVER SIDE UP SWITCH ENGINE OIL PRESSURE SWITCH ASSEMBLY FOG SWITCH FRONT PASSENGER SIDE CONTROL SWITCH FRONT VERTICAL SWITCH FRONT WIPER SWITCH FUEL LID OPENER SWITCH HAZARD WARNING SIGNAL SWITCH ASSEMBLY HEADLIGHT DIMMER SWITCH ASSEMBLY HEADUP DISPLAY SWITCH HORN SWITCH INTER LOCK SWITCH INTERLOCK SWITCH INTERMITTENT TIMING SWITCH LEFT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT FRONT POWER SEAT SWITCH LEFT FRONT SEAT INNER BELT ASSEMBLY BUCKLE SWITCH LEFT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LEFT REAR SIDE CONTROL SWITCH LEFT SEAT HEATER SWITCH LEFT STEERING PAD SWITCH LEFT STEERING PAD SWITCH STEERING PAD SWITCH ASSEMBLY LEVEL WARNING SWITCH ASSEMBLY LIFTER SWITCH LIGHT CONTROL SWITCH LUMBAR SUPPORT SWITCH MIRROR HEATER SWITCH MIRROR HEATER SWITCH ILL+ REAR ILL- WINDOW DEFOGGER SWITCH MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY OUTER MIRROR SWITCH ASSEMBLY PARKING BRAKE SWITCH ASSEMBLY PATTERN SELECT SWITCH ASSEMBLY POWER SWITCH REAR WINDOW DEFOGGER SWITCH REAR WIPER SWITCH RECLINING SWITCH RIGHT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RIGHT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RIGHT REAR SIDE CONTROL SWITCH RIGHT SEAT HEATER SWITCH RIGHT STEERING PAD SWITCH SLIDE SWITCH SLIDING ROOF CONTROL SWITCH STEERING PAD SWITCH ASSEMBLY STOP LIGHT SWITCH ASSEMBLY TRANSMISSION SHIFT MAIN SWITCH TURN SWITCH VSC OFF SWITCH WASHER SWITCH WINDOW LOCK SWITCH WINDSHIELD WIPER SWITCH ASSEMBLY

CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY PURGE FLOW SWITCHING VALVE

(OR RED/ WIRE BLK WIRE BLK/BLU WIRE BLK/DK GRN WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BSW PNK BGND WIRE CRUISE CONTROL SWITCH WIRE FL+ PNK FL- WIRE GRN WIRE GRY WIRE LT BLU WIRE LT GRN WIRE NCA WIRE ORG/ WIRE ORG/BLU WIRE ORG/LT GRN WIRE ORG/WHT WIRE PNK BGND WIRE PNK BZ WIRE PNK CANH WIRE PNK CLS WIRE PNK FUEL WIRE PNK HU WIRE PNK LLEW WIRE PNK WIRE PNK/BLK WIRE PPL/BLK WIRE PPL/BLU WIRE PPL/BRN WIRE PPL/LT GRN WIRE PPL/PNK WIRE PPL/RED WIRE PPL/VIO WIRE RED WIRE SG-1 PNK SG-2 WIRE VIO WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE

32 31 IG (IF +BM +BO +BWP +SM A/C CONTROL ASSEMBLY A/C HARNESS ASSEMBLY A/C RADIATOR DAMPER SERVO SUB-ASSEMBLY 1 A/C RADIATOR DAMPER SERVO SUB-ASSEMBLY 2 A/C RADIATOR DAMPER SERVO SUB-ASSEMBLY 3 A/C TUBE, ACCESSORY ASSEMBLY AIR CONDITIONING SYSTEM AIR CONDITIONING, COOLING FANS SYSTEMS AIR CONDITIONING, WIPER/WASHER SYSTEMS ANTI-THEFT SYSTEM AUTO DRL AUTO TAIL B+ BUS BBI+ BBL+ BBO- BBR+ BCL+ BCR+ BDL- BLOWER DAMPER SERVO SUB-ASSEMBLY 1 BRAKE BOOSTER W/ MASTER CYLINDER ASSEMBLY BSL+ BSR+ BTH+ BUS - BUS G BUSBAR MODULE CA+ CAN I/F CAN L CANH CANL GND CB+ CLEARANCE WARNING BUZZER 1 CLEARANCE WARNING BUZZER 2 COMBINATION METER COMBINATION METER ASSEMBLY COMPUTER DATA COMPUTER DATA LINES SYSTEM CONTROL CIRCUIT COOLER THERMISTOR 1 COOLING FANS SYSTEM CRUISE CONTROL SYSTEM CV+ DA DC DATA LINES DAY LIGHT DEFOGGER SYSTEM DISPLAY DRIVER DISTANCE CONTROL DK+ DOOR LOCKS, ANTI-THEFT SYSTEMS DOOR LOCKS, ANTI-THEFT, TRUNK, TAILGATE, FUEL DOORS SYSTEMS DRIVE MODE DRL OFF DRL OFF OFF ELECTRIC POWER STEERING COLUMN SUB-ASSEMBLY ELECTRONIC POWER STEERING SYSTEM ES FR ES IG+ EV MODE FCP+ FE&B FR RL FRCY LCTY FLCY FUEL INJECTOR ASSEMBLY 1 FUEL INJECTOR ASSEMBLY 2 FUEL INJECTOR ASSEMBLY 3 FUEL INJECTOR ASSEMBLY 4 FUSIBLE LINK BLOCK ASSEMBLY GLOVE BOX LIGHT ASSEMBLY GND B+ HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS HEADLIGHTS SYSTEM HEADLIGHTS SYSTEM HORNS SYSTEM HOT AT ALL TIMES HOT W/ I/F I/F ICL- ICR+ ID CODE BOX IL+2 IL-2 INNER REAR VIEW MIRROR ASSEMBLY INSTRUMENT CLUSTER SYSTEM INSTRUMENT ILLUMINATION CIRCUIT INSTRUMENT PANEL J/B ASSEMBLY INSTRUMENT PANEL PASSENGER AIR BAG W/O DOOR ASSEMBLY INTAKE MASS AIR FLOW METER SUB-ASSEMBLY INTAKE MASS AIR FLOW METER SUB-ASSEMBLY SHIELD INTELLIGENT PARKING ASSIST INVERTER W/ CONVERTER ASSEMBLY LANE DEPARTURE WARNING LED DRIVER LEFT "C" PILLAR) LEFT BUSBAR MODULE LEFT COURTESY LIGHT ASSEMBLY LEFT CURTAIN SHIELD AIR BAG ASSEMBLY LEFT ENTER LEFT FOG LIGHT ASSEMBLY LEFT FRONT DOOR OUTSIDE HANDLE ASSEMBLY LEFT FRONT SEAT AIR BAG ASSEMBLY LEFT FRONT SEAT INNER BELT ASSEMBLY LEFT FRONT SEAT OUTER BELT ASSEMBLY PRETENSIONER LEFT INTERIOR ILLUMINATION LIGHT ASSEMBLY 1 LEFT LICENSE PLATE LIGHT ASSEMBLY LEFT OUTER REAR VIEW MIRROR ASSEMBLY LEFT REAR COMBINATION LIGHT ASSEMBLY LEFT REAR LIGHT ASSEMBLY LEFT TURN IND LEFT VANITY LIGHT ASSEMBLY LEFT VISOR ASSEMBLY LF+ LIGHT CONTROL LINES SYSTEM LO HI LO LO LOWER INSTRUMENT PANEL AIR BAG ASSEMBLY 1 LUGGAGE COMPARTMENT LIGHT ASSEMBLY 1 MAP LIGHT ASSEMBLY MCI- MCO- MIRRORS SYSTEM MIST OFF MOBILE WIRELESS CHARGER CRADLE ASSEMBLY MSM+ NAVIGATION RECEIVER ASSEMBLY NAVIGATION SYSTEM NAVIGATION, SOUND SYSTEMS NAVIGATION, SUPPLEMENTAL RESTRAINTS SYSTEMS NE+ OFF HOOK ON HOOK OUTER BELT ASSEMBLY PARKING SIDE MARKER PKB CANL PKB CANL CANH IG PL- POWER DISTRIBUTION SYSTEM POWER TOPS SYSTEM POWER WINDOWS SYSTEM PR- PRE-COLLISION SAFETY CITY BUZZER PURGE VSV R/B ASSEMBLY 2 R/B ASSEMBLY 4 RADIATOR SHUTTER SUB- ASSEMBLY RADIO SETTING CONDENSER RADIO, DISPLAY RECEIVER ASSEMBLY RF+ RIGHT BUSBAR MODULE RIGHT COURTESY LIGHT ASSEMBLY RIGHT CURTAIN SHIELD AIR BAG ASSEMBLY CIRCUIT RIGHT END OF DASH) RIGHT FOG LIGHT ASSEMBLY RIGHT FRONT DOOR OUTSIDE HANDLE ASSEMBLY RIGHT FRONT SEAT AIR BAG ASSEMBLY RIGHT FRONT SEAT CUSHION AIR BAG ASSEMBLY RIGHT FRONT SEAT INNER BELT ASSEMBLY RIGHT INTERIOR ILLUMINATION LIGHT ASSEMBLY 1 RIGHT LICENSE PLATE LIGHT ASSEMBLY RIGHT OUTER REAR VIEW MIRROR ASSEMBLY RIGHT REAR COMBINATION LIGHT ASSEMBLY RIGHT REAR LIGHT ASSEMBLY RIGHT TURN IND RIGHT VANITY LIGHT ASSEMBLY RIGHT VISOR ASSEMBLY ROOM LIGHT ASSEMBLY ROOM LIGHT ASSEMBLY 1 SEATS SYSTEM SERVICE PLUG SFL- SFR- SG-2 SL- SOL + SOUND SYSTEMS SPI+ SPK+ SPO- SR- STEERING COLUMN) STEERING WHEEL) STEREO COMPONENT TUNER ASSEMBLY STEREO JACK ADAPTER ASSEMBLY 1 SUPPLEMENTAL RESTRAINTS SYSTEM TAIL RCTY THROTTLE BODY ASSEMBLY TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM TURN PARKING TWL- TWR+ UDO+ USA CANADA W/ AUTOMATIC LIGHT CONTROL W/O AUTOMATIC LIGHT CONTROL VOLUME- VVI+ W/ AUTOMATIC LIGHT CONTROL W/ AUTOMATIC LIGHT CONTROL W/O AUTOMATIC LIGHT CONTROL USA CANADA W/ BLIND SPOT MONITOR SYSTEM W/ FRONT FOG LIGHT W/ FRONT FOG LIGHT W/O FRONT FOG LIGHT W/ NAVIGATION W/ NAVIGATION SYSTEM W/ POWER SEAT W/ POWER SEAT W/O POWER SEAT W/ SAFETY CONNECT W/ SLIDING ROOF W/ SLIDING ROOF W/O SLIDING ROOF W/O AUTOMATIC LIGHT CONTROL W/O NAVIGATION W/O NAVIGATION SYSTEM W/O NAVIGATION SYSTEM W/ NAVIGATION SYSTEM W/O PRE-COLLISION SYSTEM W/O PRE-COLLISION SYSTEM W/ PRE-COLLISION SYSTEM W/O SAFETY CONNECT WARNING SYSTEMS WARNING, NAVIGATION SYSTEMS WIPER/WASHER SYSTEM