2023 Mazda CX-30 Fuses and Fuse Box Diagram User Guide
Understand about the 2023 Mazda CX-30 fuse box layout, including locations, amperage ratings, functions, and step-by-step guidelines for recognizing and replacing blown fuses for smooth electrical system operation.
2023 MAZDA CX-30 Specs, Price, Features, Mileage (Brochure)
Video: 2023 Mazda CX-30 Fuses
Fuse Replacement
Replacing the fuses on the vehicle’s left side
If the electrical system does not work, first inspect the fuses on the vehicle’s left side.
- Make sure the ignition is switched off, and other switches are off.
- Open the fuse panel cover.
- Pull the fuse straight out with the fuse puller provided on the fuse block located in the engine compartment.
- Inspect the fuse and replace it if it is blown.
- Normal
- Blown
- Insert a new fuse of the same amperage rating, and make sure it fits tightly. If it does not fit tightly, have an expert install it. Consult an Authorized Mazda Dealer.
If you have no spare fuses, borrow one of the same rating from a circuit not essential to vehicle operation, such as the audio or accessory socket circuit.
CAUTION
Always replace a fuse with a genuine Mazda fuse or equivalent of the same rating. Otherwise, you may damage the electric system.
- Reinstall the cover and make sure that it is securely installed.
Replacing the fuses under the hood
If the headlights or other electrical components do not work and the fuses in the cabin are normal, inspect the fuse block under the hood.
If a fuse is blown, it must be replaced. Follow these steps:
- Make sure the ignition is switched off, and other switches are off.
- Remove the fuse block cover.
- If any fuse but the MAIN fuse is blown, replace it with a new one of the same amperage rating.
- Normal
- Blown
WARNING
Do not replace the main fuse by yourself. Have an Authorized Mazda Dealer perform the replacement:
- Replacing the fuse by yourself is dangerous because the MAIN fuse is a high-current fuse. Incorrect replacement could cause an electrical shock or a short circuit resulting in a fire.
- Reinstall the cover and make sure that it is securely installed.
Fuse block (Engine compartment)
| No. | FUSE RAT- ING | PROTECTED COMPONENT |
| F1 | ― | ― |
| F2 | 20 A | Windshield wiper de-icer* |
| F3 | 30 A | Engine control system |
| F4 | 20 A | S-VT |
| F5 | 40 A | Engine control system |
| F6 | ― | ― |
| F7 | 20 A | Fuel pump |
| No. | FUSE RAT- ING | PROTECTED COMPONENT |
| F8 | 15 A | Engine control system |
| F9 | 15 A | Transmission control system |
| F10 | 15 A | Engine control system |
| F11 | 7.5 A | Air conditioner |
| F12 | 15 A | Engine control system |
| F13 | ― | ― |
| F14 | 20 A | Front seat warmer* |
| F15 | ― | ― |
| F16 | 15 A | For protection of various circuits |
| F17 | ― | ― |
| F18 | 15 A | For protection of various circuits |
| F19 | 60 A | Power steering system |
| F20 | 15 A | Headlight (LH) 1 |
| F21 | 15 A | Headlight (RH) 1 |
| F22 | 15 A | Keyless system |
| F23 | 30 A | ABS, Dynamic stability control system |
| F24 | 15 A | Headlight (LH) 2 |
| F25 | 15 A | Headlight (RH) 2 |
| F26 | 7.5 A | On board diagnostics |
| F27 | 25 A | For protection of various circuits |
| F28 | 25 A | For protection of various circuits |
| F29 | 15 A | Windshield washer |
| F30 | 15 A | Accessory sockets |
| F31 | 15 A | Horn |
| F32 | 15 A | Headlights |
| F33 | ― | ― |
| F34 | ― | ― |
| F35 | 50A | ABS, Dynamic stability control system |
| F36 | ― | ― |
| F37 | 40 A | Rear window defogger |
| F38 | 50 A | For protection of various circuits |
| F39 | ― | ― |
| F40 | 40 A | Air conditioner |
| No. | FUSE RAT- ING | PROTECTED COMPONENT |
| F41 | ― | ― |
| F42 | 20 A | Windshield wipers |
| F43 | 30 A | Cooling fan* |
| F44 | 30 A | Starter |
| F45 | 10 A | Engine control system |
| F46 | 15 A | Audio |
| F47 | 15 A | For protection of various circuits |
| F48 | 7.5 A | Air bag |
| F49 | 15 A | Instrument cluster |
| F50 | 15 A | Room light |
| F51 | 25 A | Audio |
| F52 | 10 A | Moonroof* |
| F53 | 15 A | Engine control system |
| F54 | 15 A | i-ACTIVSENSE |
| F55 | ― | ― |
| F56 | 15 A | Electric water pump* |
Fuse block (Left side)
| No. | FUSE RAT- ING | PROTECTED COMPONENT |
| F1 | ― | ― |
| F2 | ― | ― |
| F3 | ― | ― |
| F4 | 15 A | Power door locks (Driver) |
| F5 | 15 A | Power door locks (Passenger) |
| F6 | ― | ― |
| F7 | 25 A | Power liftgate* |
| F8 | ― | ― |
| F9 | 30 A | Power windows (Driver) |
| F10 | 30 A | Power windows (Passenger) |
| F11 | 30 A | Power seat (Driver)* |
| F12 | ― | ― |
| F13 | 15 A | Audio |
| F14 | ― | ― |
| F15 | 15 A | Liftgate lock |
| No. | FUSE RAT- ING | PROTECTED COMPONENT |
| 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 | ― | ― |
Useful Links
View Full PDF: 2023 Mazda cx-30 User Manual| Auto User Guide
2023 MAZDA CX-30 Specs, Price, Features, Mileage (Brochure)
2023 Mazda CX-30 Instrument Cluster User Guide