Mazda MX-5 Miata (2016 – 2026) Fuse Box Diagrams & Location
The Mazda MX-5 Miata (2016–2026) features fuse boxes that protect essential electrical systems throughout the vehicle. Knowing their locations and fuse assignments makes it easier to identify electrical issues, replace blown fuses, and maintain proper operation of lighting, accessories, safety systems, and other important vehicle components.
Fuse Box Location
Passenger Compartment Fuse Box
The fuse box is located behind the cover on the left side of the vehicle.
Engine Compartment Fuse Box
Fuse Box Diagrams
Passenger Compartment Fuse Box
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | RHT R | 30 A | 2016: —
Retractable fastback (RH) (Some models) |
| 2 | RHT L | 30 A | 2016: — Retractable fastback (LH) (Some models) |
| 3 | — | — | — |
| 4 | ENGINE6 | 10 A | 2016-2018: Not Used 2019-2023: Engine control 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 | R_DECK R | 30 A | 2016: — Retractable fastback (RH) (Some models) |
| 10 | R_DECK L | 30 A | 2016: —
Retractable fastback (LH) (Some models) |
| 11 | F.WASHER | 15 A | Windshield washer |
| 12 | P.WINDOW | 30 A | Power windows |
| 13 | — | — | — |
| 14 | SRS2/ESCL | 15 A | 2018: Not Used 2019-2026: Electronic steering lock |
| 15 | SEAT WARM | 20 A | Seat warmer (Some models) |
| 16 | M.DEF | 7.5 A | Mirror defogger (Some models) |
Engine Compartment Fuse Box
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | ENG IG3 | 5 A | — |
| 2 | ENG IG2 | 5 A | — |
| 3 | HORN2 | 7.5 A | Horn |
| 4 | C/U IG1 | 15 A | For protection of various circuits |
| 5 | ENG IG1 | 7.5 A | Engine control system |
| 6 | — | — | — |
| 7 | INTERIOR | 15 A | Overhead light |
| 8 | ENG+B | 7.5 A | Engine control system |
| 9 | AUDIO2 | 15 A | Audio system |
| 10 | METER1 | 10 A | Instrument cluster |
| 11 | SRS1 | 7.5 A | Air bag |
| 12 | — | — | — |
| 13 | RADIO | 7.5 A | Audio system |
| 14 | ENGINE3 | 20 A | 2016-2018: Engine control system 2019-2023: Not Used |
| 15 | ENGINE1 | 10 A | Engine control system |
| 16 | ENGINE2 | 15 A | Engine control system |
| 17 | AUDIO1 | 25 A | Audio system |
| 18 | A/C MAG | 7.5 A | Air conditioner |
| 19 | AT PUMP H/L HI |
20 A | 2018: Not Used 2016-2017-2019-2023: Transmission control system (Some models) |
| 20 | AT | 15 A | Transmission control system (Some models) |
| 21 | D LOCK | 25 A | Power door locks |
| 22 | H/L RH | 20 A | Headlight (RH) |
| 23 | ENG+B2 | 7.5 A | Engine control system |
| 24 | TAIL | 20 A | Taillights, License plate lights. Parking lights |
| 25 | DRL | 15 A | — |
| 26 | ROOM | 25 A | Overhead light |
| 27 | FOG | 15 A | — |
| 28 | H/CLEAN | 20 A | — |
| 29 | STOP | 10 A | Brake lights |
| 30 | HORN | 15 A | Horn |
| 31 | H/L LH | 20 A | Headlight (LH) |
| 32 | ABS/DSC S | 30 A | ABS, Dynamic stability control system |
| 33 | HAZARD | 15 A | Hazard warning flashers, Turn signal lights |
| 34 | FUEL PUMP | 15 A | Fuel system |
| 35 | ENG+B3 | 5 A | — |
| 36 | WIPER | 20 A | Windshield wipers |
| 37 | CABIN+B | 50 A | For protection of various circuits |
| 38 | — | — | — |
| 39 | — ENG SUB |
—
30 A |
2016-2018: Not Used 2019-2023: Engine control system |
| 40 | ABS/DSC M | 50 A | ABS, Dynamic stability control system |
| 41 | EVVT A/R PUMP |
20 A | Engine control system |
| 42 | EVPS | 30 A | Brake control system |
| 43 | FAN1 | 30 A | Cooling fan |
| 44 | FAN2 | 40 A | — |
| 45 | ENG.MAIN | 40 A | Engine control system |
| 46 | EPS | 60 A | Power steering system |
| 47 | DEFOG | 30 A | Rear window defogger |
| 48 | IG2 | 30 A | For protection of various circuits |
| 49 | INJECTOR | 30 A | 2016-2018: Engine control system 2019-2023: Not Used |
| 50 | HEATER | 40 A | Air conditioner |
| 51 | — | — | — |
| 52 | ENGINE4 | 20A | 2016-2018: Not Used 2019-2023: Engine control system |
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