2021 Fiat 500 312 Fuse Box Diagram
The 2021 Fiat 500 (312) has 2 fuse boxes. Choose the one you’re looking at.
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Dashboard fuse box
Under the dashboard on the driver's side, in the lower area next to the pedals and to the left of the steering column. Pull off the press-fitted cover (A in the handbook's fig. 112) to reach the fourteen MINI fuses of the body computer; a fuse puller is clipped inside the cover. Drawn as the handbook's plate F0S0172 prints it, connector to the left. Positions 12, 31, 32 and 50 are on the plate but not in the 2020-2023 handbooks, which list only the fuses an owner may replace; the 5 A fuse for door-mirror demisting sits separately by the diagnostic socket (fig. 113).
| No. | Function | Amp | Description |
|---|---|---|---|
| 12 | Not listed in the 2020-2023 handbooks (the right dipped-beam fuse in the pre-facelift editions); replacement by a Fiat Dealership | ||
| 13 | 5 AMINI | Headlight levelling (alignment corrector), versions and markets where fitted | |
| 31 | Not listed in the 2020-2023 handbooks; replacement by a Fiat Dealership | ||
| 32 | Not listed in the 2020-2023 handbooks (the interior-lights fuse in the pre-facelift editions); replacement by a Fiat Dealership | ||
| 36 | 15 AMINI | Diagnostic socket (EOBD), radio, climate control | |
| 37 | 5 AMINI | Brake-light switch, instrument panel node | |
| 38 | 15 AMINI | Central door locking | |
| 43 | 15 AMINI | Windscreen and rear-window washer pump | |
| 47 | 20 AMINI | Driver's electric window | |
| 48 | 20 AMINI | Passenger's electric window | |
| 49 | 5 AMINI | Parking sensors, switch backlighting, electric door mirrors | |
| 50 | Not listed in the 2020-2023 handbooks; replacement by a Fiat Dealership | ||
| 51 | 7.5 AMINI | Climate control, brake lights, clutch switch, electric roof, electric door mirrors | |
| 53 | 5 AMINI | Instrument panel node |
Engine compartment junction box
On the right-hand side of the engine compartment, next to the battery. Press the screw (A in the handbook's fig. 114) fully in while turning it slowly anticlockwise until it resists, release it, and slide the cover (B) upwards out of its side guides; refit in the reverse order and turn the screw clockwise. Drawn as the handbook's plate F0S0607 prints it: a column of fourteen MINI fuses, a column of ten MAXI fuses, the relays T02-T31 and the F11/F17/F22/F08/F85 group at the right. The handbooks list only the fuses an owner may replace; the other numbered positions are general-protection fuses (engine, gearbox, brakes, steering, body computer) that a Fiat Dealership replaces.
| No. | Function | Amp | Description |
|---|---|---|---|
| 1 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 2 | 20 AMAXI | HI-FI audio amplifier | |
| 3 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 4 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 5 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 6 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 7 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 8 | 30 AMAXI | Climate control blower fan | |
| 9 | 30 AMINI | Headlight washers | |
| 10 | 10 AMINI | Horns | |
| 11 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 14 | 15 AMINI | Main-beam headlights | |
| 15 | 20 AMINI | Electric roof motor: the folding soft top of the 500C, or the opening sunroof where fitted | |
| 16 | 7.5 AMINI | Dualogic automated-gearbox control unit, ignition-switched supply; 1.2 petrol with the Dualogic gearbox only, not fitted on the 1.0 Hybrid | |
| 17 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 18 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 19 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 20 | 30 AMINI | Heated rear window | |
| 21 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 22 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 23 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 24 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 30 | 15 AMINI | Front fog lights | |
| 81 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 82 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 83 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership | ||
| 84 | 10 AMINI | Dualogic automated-gearbox control unit; 1.2 petrol with the Dualogic gearbox only, not fitted on the 1.0 Hybrid | |
| 85 | 20 AMAXI | Front power socket, with or without the cigar lighter | |
| 87 | Not listed in the 2020-2023 handbooks; general-protection fuse, replacement by a Fiat Dealership |