Toyota Prius Plug-in Hybrid (2010) – fuse box diagram
Year of production: 2010
Engine compartment
| Fuse | Ampere rating [A] | Circuit | |
| 1 | DC/DC | 120 | DC/DC converter |
| 2 | HTR | 50 | Air conditioning system |
| 3 | CDS | 30 | Electric cooling fans |
| 4 | RDI | 40 | Electric cooling fans |
| 5 | ENG W/P | 30 | Cooling system |
| 6 | ABS MAIN NO.2 | 7,5 | Anti-lock brake system |
| 7 | PTC1 | 50 | Air conditioning system |
| 8 | PTC2 | 50 | Air conditioning system |
| 9 | PTC3 | 50 | Air conditioning system |
| 10 | FUEL OPN | 7,5 | Fuel filler door opener |
| 11 | IGCT | 30 | PCU, IGCT NO.2, IGCT NO.3 |
| 12 | DC/DC-S | 5 | Inverter and converter |
| 13 | P CON MAIN | 7,5 | Parking control system, transmission |
| 14 | AM2 | 7,5 | Power management system |
| 15 | ECU-B2 | 7,5 | Smart key system |
| 16 | ECU-B4 | 7,5 | Hybrid battery (Traction battery) |
| 17 | ECU-B3 | 10 | Air conditioning system |
| 18 | TURN & HAZ | 10 | Turn signal lights |
| 19 | ETCS | 10 | Multiport fuel injection system/sequential multiport fuel injection system |
| 20 | ABS MAIN NO.1 | 25 | Anti-lock brake system |
| 21 | P/I 2 | 40 | Parking control system, horn, right-hand headlight (low beam), left-hand headlight (low beam), back-up lights |
| 22 | ABS MTR 1 | 30 | Anti-lock brake system |
| 23 | ABS MTR 2 | 30 | Anti-lock brake system |
| 24 | H-LP HI MAIN | 20 | H-LP HI RH, H-LP HI LH, headlight switch, daytime running light system |
| 25 | P/I 1 | 60 | IG2, EFI MAIN, BATT FAN |
| 26 | EPS | 60 | Electric power steering |
| 27 | PCU | 10 | Inverter and converter |
| 28 | IGCT NO.2 | 10 | Hybrid system, parking control system, power management system, inverter and converter |
| 29 | MIR HTR | 10 | Outside rear view mirror defoggers |
| 30 | RAD NO.1 | 15 | Audio system, navigation system |
| 31 | DOME | 10 | Door courtesy lights, personal lights, interior lights, vanity lights, electric power steering |
| 32 | ECU-B | 7,5 | Smart key system, multiplex communication system, personal lights, gauges and meters |
| 33 | H-LP LH HI | 10 | Left-hand headlight (high beam) |
| 34 | H-LP RH HI | 10 | Right-hand headlight (high beam) |
| 35 | EFI NO.2 | 10 | Multiport fuel injection system/sequential multiport fuel injection system |
| 36 | IGCT NO.3 | 10 | Cooling system |
| 37 | SPARE | 30 | Spare fuses |
| 38 | SPARE | 10 | Spare fuses |
| 39 | SPARE | 7,5 | Spare fuses |
| 40 | EFI MAIN | 20 | Multiport fuel injection system/sequential multiport fuel injection system, EFI NO.2 |
| 41 | BATT FAN | 20 | Battery cooling fan |
| 42 | IG2 | 20 | Multiport fuel injection system/sequential multiport fuel injection system, MET-IGN, IGN, power management system |
Left side instrument panel
| Fuse | Ampere rating [A] | Circuit | |
| 1 | CIG | 15 | Power outlets |
| 2 | ECU-ACC | 10 | Multiplex communication system, outside rear view mirrors, driver support system, audio system, navigation system |
| 3 | PWR OUTLET | 15 | Power outlets |
| 4 | SEAT HTR FR | 10 | Seat heater |
| 5 | SEAT HTR FL | 10 | Seat heater |
| 6 | DOOR NO.1 | 25 | Power door lock system |
| 7 | PSB | 30 | No circuit |
| 8 | PWR SEAT FR | 30 | No circuit |
| 9 | DBL LOCK | 25 | No circuit |
| 10 | FR FOG | 15 | Fog lights |
| 11 | PWR SEAT FL | 30 | No circuit |
| 12 | OBD | 7,5 | On-board diagnosis system |
| 13 | RR FOG | 7,5 | No circuit |
| 14 | STOP | 10 | Stop lights, high mounted stoplight, brake system, power management system, driver support system |
| 15 | P FR DOOR | 25 | Power windows |
| 16 | D FR DOOR | 25 | Power windows |
| 17 | DOOR RR | 25 | Power windows |
| 18 | DOOR RL | 25 | Power windows |
| 19 | S/ROOF | 30 | No circuit |
| 20 | ECU-IG NO.1 | 10 | Electric cooling fans, multiplex communication system |
| 21 | ECU-IG NO.2 | 10 | Driver support system, yaw rate & G sensor, brake system, electric power steering, navigation system, tire pressure warning system, seat belt pretensioners, audio system, emergency flashers, turn signal lights, windshield wipers |
| 22 | GAUGE | 10 | Front passenger’s seat belt reminder light, gauges and meters |
| 23 | A/C | 10 | Air conditioning system, Remote Air Conditioning System |
| 24 | WASHER | 15 | Windshield washer |
| 25 | RR WIP | 20 | Rear window wiper and washer |
| 26 | WIP | 30 | Windshield wipers |
| 27 | MET | 7,5 | Gauges and meters |
| 28 | IGN | 10 | Brake system, driver support system, multiport fuel injection system/sequential multiport fuel injection system, SRS airbag system, occupant detection sensor, power management system, smart key system |
| 29 | PANEL | 10 | Air conditioning system, emergency flashers, seat heaters, transmission, “P” position switch, navigation system, Remote Air Conditioning System, front passenger’s seat belt reminder light, glove box light, clock, audio system |
| 30 | TAIL | 10 | Parking lights, tail lights, license plate lights, fog lights, side marker lights |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.