Mazda CX-3 (2015 – 2022) Fuse Box Location & Diagrams
The Mazda CX-3 (2015–2022) features fuse boxes that protect essential electrical systems throughout the vehicle. This blog provides clear fuse box locations and diagrams for these model years, helping you identify fuse positions, ratings, and protected components when troubleshooting electrical issues or replacing a blown fuse.
Fuse Box Location
Passenger Compartment Fuse Box
The fuse box is located on the left side of the vehicle, under the dashboard, near the door.
Engine Compartment Fuse Box
Fuse Box Diagrams
Passenger Compartment Fuse Box
Mazda CX-3 (2015 – 2021)
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | — | — | — |
| 2 | — | — | — |
| 3 | — AUDIO2 | — 15 A | — 2019-2021: Audio system |
| 4 | — ST.HEATER | — 10 A | — 2019-2021: Heated steering system |
| 5 | F.OUTLET | 15 A | Accessory sockets |
| 6 | — | — | — |
| 7 | AT IND | 7.5 A | AT shift indicator (Some models) |
| 8 | MIRROR | 7.5 A | Power control mirror |
| 9 | — | — | — |
| 10 | P.WINDOW2 | 25 A | Power windows |
| 11 | R.WIPER | 15 A | Rear window wiper and washer |
| 12 | — P.SEAT D | — 30 A | — 2019-2021: Power seat |
| 13 | — | — | — |
| 14 | SRS2/ESCL | 15 A | Electronic steering lock 2016-2021: — |
| 15 | SEAT WARM | 20 A | Seat warmer (Some models) |
| 16 | M.DEF | 7.5 A | Mirror defogger (Some models) |
Mazda CX-3 (2022)
| No. | FUSE RATING | 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 |
| 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 | — | — |
Engine Compartment Fuse Box
Mazda CX-3 (2015 – 2021)
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | C/U IG1 | 15 A | For protection of various circuits |
| 2 | ENGINE IG1 | 7.5 A | Engine control system |
| 3 | SUNROOF | 10 A | Sunroof |
| 4 | INTERIOR | 15 A | Overhead light |
| 5 | ENG+B | 7.5 A | Engine control system |
| 6 | AUDIO2 | 15 A | Audio system |
| 7 | METER1 | 10 A | Instrument cluster |
| 8 | SRS1 | 7.5 A | Air bag |
| 9 | METER2 | 7.5 A | Instrument cluster (Some models) 2019-2021: — |
| 10 | RADIO | 7.5 A | Audio system |
| 11 | ENGINE3 | 15 A | Engine control system |
| 12 | ENGINE1 | 15 A | Engine control system 2019-2021: — |
| 13 | ENGINE2 | 15 A | Engine control system |
| 14 | AUDIO1 | 25 A | Audio system |
| 15 | A/C MAG | 7.5 A | Air conditioner (Some models) |
| 16 | AT PUMP | 15 A | Transaxle control system (Some models) 2019-2021: — |
| 17 | AT | 15 A | Transaxle control system (Some models) |
| 18 | D.LOCK | 25 A | Power door locks |
| 19 | H/L RH | 20 A | Headlight (RH) |
| 20 | ENG+B2 | 7.5 A | Engine control system |
| 21 | TAIL | 20 A | Tail lights, Number plate lights, Position lights |
| 22 | — ST. HEATER | — 15 A/20A | — 2019-2021: Heated steering wheel (Some models), Headlight (Some models) |
| 23 | ROOM | 25 A | Overhead light |
| 24 | FOG | 15 A | Front fog lights (Some models) |
| 25 | H/CLEAN | 20 A | Headlight washer (Some models) 2016-2021: — |
| 26 | STOP | 10 A | Brake lights, Rear fog light (Some models) |
| 27 | HORN | 15 A | Horn |
| 28 | H/L LH | 20 A | Headlight (LH) |
| 29 | ABS/DSC S | 30 A | ABS, Dynamic stability control system (Some models) |
| 30 | HAZARD | 15 A | Hazard warning flashers, Direction indicator lights |
| 31 | FUEL PUMP | 15 A | Fuel system (Some models) |
| 32 | FUEL WARM | 25 A | Fuel warmer (Some models) 2016-2021: — |
| 33 | WIPER | 20 A | Front window wiper |
| 34 | CABIN+B | 50 A | For protection of various circuits |
| 35 | FAN2 | 30 A | — 2019-2021: Electric parking brake (LH) |
| 36 | FUEL PUMP | 30 A | — |
| 37 | ABS/DSC M | 50 A | ABS, Dynamic stability control system (Some models) |
| 38 | EVVT | 20 A | Engine control system (Some models) |
| 39 | — | — | — |
| 40 | FAN1 | 30 A | — 2019-2021: Electric parking brake (RH) |
| 41 | FAN 3 | 40 A | Cooling fan (Some models) |
| 42 | ENG.MAIN | 40 A | Engine control system |
| 43 | EPS | 60 A | Power steering system (Some models) 2016-2021: — |
| 44 | DEFOG | 40 A | Rear window defogger |
| 45 | IG2 | 30 A | For protection of various circuits |
| 46 | INJECTOR | 30 A | Engine control system (Some models) |
| 47 | HEATER | 40 A | Air conditioner |
| 48 | P. WINDOW 1 | 30 A | Power windows |
| 49 | DCDC DE | 40 A | For protection of various circuits (Some models) 2016-2021: — |
Mazda CX-3 (2022)
| No. | FUSE RATING | 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 |
| 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 | 50 A | 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 |
| 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* |
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