Mazda CX-3 – fuse box diagram
Year of manufacture: 2020.
Fuse block (engine compartment)
| Number | Amps [A] | Description |
| 1 | 15 A | For the protection of several circuits |
| 2 | 7,5 A | Motor control system |
| 3 | 10 A | Opening roof (some models) |
| 4 | 15 A | Overhead light, audio system |
| 5 | 7,5 A | Motor control system |
| 6 | 15 A | Engine control system |
| 7 | 10 A | Instrument cluster |
| 8 | 7,5 A | Airbag |
| 9 | 7,5 A | – |
| 10 | 7,5 A | Public Address System |
| 11 | 15 A | Engine control system |
| 12 | 15 A | – |
| 13 | 15 A | Engine control system |
| 14 | 25 A | Public Address System |
| 15 | 7,5 A | Air conditioning |
| 16 | 15 A | – |
| 17 | 15 A | Gearbox control system |
| 18 | 25 A | Electric Door Locks |
| 19 | 20 A | Lighthouse (right) |
| 20 | 7,5 A | Motor control system |
| 21 | 20 A | Tail lights;
License plate illumination; Parking lights. |
| 22 | 15 A / 20 A | Heated steering wheel (some models) ;
Headlight (some models). |
| 23 | 25 A | Overhead Light |
| 24 | 15 A | Fog lamps (some models) |
| 25 | 20 A | – |
| 26 | 10 A | Stop lights |
| 27 | 15 A | Horn |
| 28 | 20 A | Headlight (left) |
| 29 | 30 A | ABS;
Dynamic stability control system. |
| 30 | 15 A | Warning Flashes;
Direction indicators. |
| 31 | 15 A | Fuel system |
| 32 | 25 A | – |
| 33 | 20 A | Windshield wiper |
| 34 | 50 A | For the protection of several circuits |
| 35 | 30 A | Electric parking brake (left) |
| 36 | 30 A | – |
| 37 | 50 A | ABS;
Dynamic stability control system. |
| 38 | 20 A | Motor control system |
| 39 | – | – |
| 40 | 30 A | Electric Parking Brake (RH) |
| 41 | 40 A | Cooling Fan |
| 42 | 40 A | Engine control system |
| 43 | 60 A | – |
| 44 | 40 A | Rear window defogger |
| 45 | 30 A | For the protection of several circuits |
| 46 | 30 A | Engine control system |
| 47 | 40 A | Air Conditioning |
| 48 | 30 A | Electric windows |
| 49 | 40 A | – |
Passenger compartment fuse block
(Left Side)
| Number | Amps [A] | Description |
| 1 | – | – |
| 2 | – | – |
| 3 | 15 A | Public Address System |
| 4 | 10 A | Heated steering system (some models) |
| 5 | 15 A | Accessory sockets |
| 6 | – | – |
| 7 | 7,5 A | AT gear shift indicator (some models) |
| 8 | 7,5 A | Side mirror control |
| 9 | – | – |
| 10 | 25 A | Electric windows |
| 11 | 15 A | Rear window wiper and washer |
| 12 | 30 A | Electric seat (some models) |
| 13 | – | – |
| 14 | 15 A | – |
| 15 | 20 A | Seat heating (some models) |
| 16 | 7,5 A | Defogger mirror (some models) |
