Mazda MX-5 – fuse box diagram
Year of manufacture: 2021.
Fuse block (engine compartment)
| Number | Amps [A] | Description |
| 1 | 5 A | – |
| 2 | 5 A | – |
| 3 | 7,5 A | Horn |
| 4 | 15 A | For the protection of several circuits |
| 5 | 7,5 A | Motor control system |
| 6 | – | – |
| 7 | 15 A | Overhead Light |
| 8 | 7,5 A | Motor control system |
| 9 | 15 A | Public Address System |
| 10 | 10 A | Instrument cluster |
| 11 | 7,5 A | Airbag |
| 12 | – | – |
| 13 | 7,5 A | Public Address System |
| 14 | 20 A | – |
| 15 | 10 A | Motor control system |
| 16 | 15 A | Engine control system |
| 17 | 25 A | Public Address System |
| 18 | 7,5 A | Air conditioning |
| 19 | 20 A | Transmission control system (some models) |
| 20 | 15 A | Transmission control system (some models) |
| 21 | 25 A | Electric Door Locks |
| 22 | 20 A | Lighthouse (right) |
| 23 | 7,5 A | Motor control system |
| 24 | 20 A | Tail lights, registration lights, parking lights |
| 25 | 15 A | – |
| 26 | 25 A | Overhead Light |
| 27 | 15 A | – |
| 28 | 20 A | – |
| 29 | 10 A | Stop lights |
| 30 | 15 A | horn |
| 31 | 20 A | Headlight (left) |
| 32 | 30 A | ABS, dynamic stability control system |
| 33 | 15 A | Emergency lights, turn signals, direction indicators |
| 34 | 15 A | Fuel system |
| 35 | 5 A | – |
| 36 | 20 A | Cleaners |
| 37 | 50 A | For the protection of several circuits |
| 38 | – | – |
| 39 | 30 A | Engine control system |
| 40 | 50 A | ABS, dynamic stability control system |
| 41 | 20 A | Motor control system |
| 42 | 30 A | Brake Control System |
| 43 | 30 A | Cooling Fan |
| 44 | 40 A | – |
| 45 | 40 A | Engine control system |
| 46 | 60 A | Power steering system |
| 47 | 30 A | Rear window defogger |
| 48 | 30 A | For the protection of several circuits |
| 49 | 30 A | – |
| 50 | 40 A | Air Conditioning |
| 51 | – | – |
| 52 | 20 A | Motor control system |
Passenger compartment fuse block (left side)
| Number | Amps [A] | Description |
| 1 | 30 A | Retractable hardtop (right) (some models) |
| 2 | 30 A | Retractable hard top (left) (some models) |
| 3 | – | – |
| 4 | 10 A | Engine control system |
| 5 | 15 A | Accessory sockets |
| 6 | – | – |
| 7 | 7,5 A | AT gear shift indicator (some models) |
| 8 | 7,5 A | Power control mirror |
| 9 | 30 A | Retractable hardtop (right) (some models) |
| 10 | 30 A | Retractable hard top (left) (some models) |
| 11 | 15 A | Windshield washer |
| 12 | 30 A | Electric windows |
| 13 | – | – |
| 14 | 15 A | Electronic lock of steering wheel |
| 15 | 20 A | Seat heating (some models) |
| 16 | 7,5 A | Defogger mirror (some models) |
