2012 Toyota Prius c Fuse Box Diagram
The fuse box on the 2012 Toyota Prius c, with every fuse and relay. Tap a fuse to see what it protects, or search for the thing that stopped working.
Where it isUnder the hood in the engine bay. Page 404 of the owner's manual shows the exact spot.
Slot map: the fuses are listed in the manual's order, not where they sit in the box. Match the numbers to the label inside the box cover, or the drawing on page 404 of your owner's manual.
2012 Prius c engine bay fuses
Engine compartment (type A fuse box). Tap a row to find it on the diagram.
| No. | Amps | Type | Protects |
|---|---|---|---|
| 1 | 20A | Fuse (size not listed) | EFI-MAIN: Multiport fuel injection system/ sequential multiport fuel injection system, EFI NO.2 |
| 2 | 10A | Fuse (size not listed) | HORN: Horn |
| 3 | 30A | Fuse (size not listed) | IG2: IG2 NO.2, METER, IGN |
| 4 | 7.5A | Fuse (size not listed) | SPARE: Spare fuse |
| 5 | 15A | Fuse (size not listed) | SPARE: Spare fuse |
| 6 | 30A | Fuse (size not listed) | SPARE: Spare fuse |
| 7 | 10A | Fuse (size not listed) | EFI NO.2: Multiport fuel injection system/ sequential multiport fuel injection system |
| 8 | 10A | Fuse (size not listed) | H-LP RH-LO: Right-hand headlight (low beam) |
| 9 | 10A | Fuse (size not listed) | H-LP LH-LO: Left-hand headlight (low beam), gauge and meters |
| 10 | 10A | Fuse (size not listed) | H-LP RH-HI: Right-hand headlight (high beam) |
| 11 | 10A | Fuse (size not listed) | H-LP LH-HI: Left-hand headlight (high beam), gauge and meters |
| 12 | 10A | Fuse (size not listed) | IG2 NO.2: Multiport fuel injection system/ sequential multiport fuel injection system, steering switches, brake system, starter system, smart key system, occupant classification system, SRS airbag system |
| 13 | 15A | Fuse (size not listed) | DOME: Audio system, vehicle control and operation data recording, main body ECU, personal lights, luggage compartment light |
| 14 | 7.5A | Fuse (size not listed) | ECU-B NO.1: Main body ECU, smart key system |
| 15 | 7.5A | Fuse (size not listed) | METER: Gauge and meters |
| 16 | 15A | Fuse (size not listed) | IGN: Multiport fuel injection system/ sequential multiport fuel injection system |
| 17 | 10A | Fuse (size not listed) | HAZ: Emergency flashers |
| 18 | 10A | Fuse (size not listed) | ETCS: Multiport fuel injection system/ sequential multiport fuel injection system |
| 19 | 20A | Fuse (size not listed) | ABS NO.1: Brake system |
| 20 | 30A | Fuse (size not listed) | ENG W/PMP: Multiport fuel injection system/ sequential multiport fuel injection system |
| 21 | 40A | Fuse (size not listed) | H-LP-MAIN: H-LP LH-LO, H-LP RH-LO, H-LP LH-HI, H-LP RH-HI, daytime running light system |
| 22 | 30A | Fuse (size not listed) | H-LP CLN |
| 23 | 30A | Fuse (size not listed) | ABS MTR NO.1: Brake system |
| 24 | 50A | Fuse (size not listed) | P/I: EFI-MAIN, HORN, IG2 |
| 25 | 7.5A | Fuse (size not listed) | ECU-B NO.2: Air conditioning system, gauge and meters, occupant classification system, tire pressure warning system, starter system, smart key system, power door lock system |
| 26 | 7.5A | Fuse (size not listed) | AM2: Starter system |
| 27 | 20A | Fuse (size not listed) | STRG LOCK: Starter system |
| 28 | 10A | Fuse (size not listed) | ABS NO.2: Brake system |
| 29 | 30A | Fuse (size not listed) | IGCT-MAIN: IGCT NO.2, IGCT NO.3, IGCT NO.4, PCU, BATT FAN |
| 30 | 30A | Fuse (size not listed) | D/C CUT: DOME, ECU-B NO.1 |
| 31 | 30A | Fuse (size not listed) | PTC HTR NO.1: PTC heater |
| 32 | 30A | Fuse (size not listed) | PTC HTR NO.2: PTC heater |
| 33 | 30A | Fuse (size not listed) | FAN: Electric cooling fan |
| 34 | 30A | Fuse (size not listed) | PTC HTR NO.3: PTC heater |
| 35 | 30A | Fuse (size not listed) | DEF: MIR HTR, rear window defogger |
| 36 | 20A | Fuse (size not listed) | DEICER |
| 37 | 10A | Fuse (size not listed) | BATT FAN: Battery cooling fan |
| 38 | 10A | Fuse (size not listed) | IGCT NO.2: Hybrid system |
| 39 | 10A | Fuse (size not listed) | IGCT NO.4: Hybrid system |
| 40 | 10A | Fuse (size not listed) | PCU: Hybrid system |
| 41 | 10A | Fuse (size not listed) | IGCT NO.3: Hybrid system |
| 42 | 10A | Fuse (size not listed) | MIR HTR: Outside rear view mirror defoggers |
Blade fuse colours
- 5A Tan
- 7.5A Brown
- 10A Red
- 15A Blue
- 20A Yellow
- 25A Clear
- 30A Green
- 35A Blue-green
- 40A Orange
Cartridge (J-case) colours
- 20A Blue
- 25A White
- 30A Pink
- 40A Green
- 50A Red
- 60A Yellow
Source: 2012 Toyota Prius c Owner's Manual, "Fuses" section, p. 404.
Always replace a fuse with one of the same amp rating. If a new fuse blows straight away, the circuit has a fault.