Mazda CX-30 (2019 – 2023) – fuse and relay box diagram
Year of production: 2019, 2020, 2021, 2022, 2023
The Mazda CX-30, a compact crossover SUV, has been in production since 2019. In this article, you’ll find fuse box diagrams for the 2019, 2020, 2021, 2022 and 2023 models, along with information on the locations of the fuse panels inside the vehicle and details on each fuse’s function and layout.
Passenger compartment fuse box
Fuse Box Location
It is located behind the cover on the left side of the vehicle.
Fuse Box Diagram
Assignment of the fuses in the passenger compartment
| № | Ampere Rating | Protected Component |
|---|---|---|
| F1 | — | Not Used |
| F2 | — | Not Used |
| F3 | — | Not Used |
| F4 | 15 A | Power door locks (Driver) |
| F5 | 15 A | Power door locks (Passenger) |
| F6 | — | Not Used |
| F7 | 25 A | Power liftgate |
| F8 | — | Not Used |
| F9 | 30 A | Power windows (Driver) |
| F10 | 30 A | Power windows (Passenger) |
| F11 | 30 A | Power seat (Driver) |
| F12 | — | Not Used |
| F13 | 15 A | Audio |
| F14 | — | Not Used |
| F15 | 15 A | Liftgate lock |
| F16 | 15 A | Illumination |
| F17 | 10 A | Brake lights |
| F18 | 10 A | Reverse lights |
| F19 | 10 A | Rear turn signal lights |
| F20 | 10 A | Taillights |
| F21 | 10 A | Taillights |
| F22 | 7.5 A | Air bag |
| F23 | — | Not Used |
Engine compartment fuse box
Fuse Box Location
Open the fuse block cover by unhooking the tabs and lifting up on the cover.
Fuse Box Diagram
Assignment of the fuses in the engine compartment
| № | Ampere Rating | Protected Component |
|---|---|---|
| F1 | — | Not Used |
| F2 | 20A | Windshield wiper de-icer |
| F3 | 20A or 30A | Not Used / Engine control system (30A) |
| F4 | 20A | S-VT |
| F5 | 40A | Engine control system |
| F6 | 20A | Not Used |
| F7 | 15A or 20A | Not Used / Fuel pump (20A) |
| F8 | 15A | Engine control system |
| F9 | 15A | Transmission control system |
| F10 | 15A | Engine control system |
| F11 | 7.5A | Air conditioner |
| F12 | 15A | Engine control system |
| F13 | 15A | Not Used |
| F14 | 20A | Front seat warmer |
| F15 | 20A | Not Used |
| F16 | 15A | For protection of various circuits |
| F17 | — | Not Used |
| F18 | 15A | For protection of various circuits |
| F19 | 60A | Power steering system |
| F20 | 15A | Headlight (Left) 1 |
| F21 | 15A | Headlight (Right) 1 |
| F22 | 15A | Keyless system |
| F23 | 30A | ABS, Dynamic stability control system |
| F24 | 15A | Headlight (Left) 2 |
| F25 | 15A | Headlight (Right) 2 |
| F26 | 7.5A | On board diagnostics |
| F27 | 25A | For protection of various circuits |
| F28 | 25A | For protection of various circuits |
| F29 | 15A | Windshield washer |
| F30 | 15A | Accessory sockets |
| F31 | 15A | Horn |
| F32 | 15A | Headlights |
| F33 | — | Not Used |
| F34 | — | Not Used |
| F35 | 50A | ABS, Dynamic stability control system |
| F36 | — | Not Used |
| F37 | 40A | Rear window defogger |
| F38 | 50A | For protection of various circuits |
| F39 | — | Not Used |
| F40 | 40A | Air conditioner |
| F41 | — | Not Used |
| F42 | 20A | Windshield wipers |
| F43 | 30A | Cooling fan |
| F44 | 30A | Starter |
| F45 | 10A | Engine control system |
| F46 | 15A | Audio |
| F47 | 15A | For protection of various circuits |
| F48 | 7.5A | Air bag |
| F49 | 15A | Instrument cluster |
| F50 | 15A | Room light |
| F51 | 25A | Audio |
| F52 | 10A | Moonroof |
| F53 | 15A | Engine control system |
| F54 | 15A | i-ACTIVSENSE |
| F55 | 50A | Not Used |
| F56 | 50A or 15A | Not Used / Electric water pump (2022-2023) (15A) |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.