Mazda CX-8 (2019 – 2023) Fuse Box Location & Diagrams
The Mazda CX-8 (2019–2023) uses fuse boxes to protect its electrical systems and components from damage. Knowing the fuse box locations and assignments helps with identifying blown fuses and troubleshooting electrical problems. This article provides clear fuse box locations, diagrams, fuse ratings, and protected circuits for the CX-8.
Fuse Box Location
Passenger Compartment Fuse Box
Engine Compartment Fuse Box
Fuse Box Diagrams
Passenger Compartment Fuse Box
| No. | Fuse Description | Fuse Rating | Protected Component |
|---|---|---|---|
| 1 | P.SEAT D | 30 A | Power seat* |
| 2 | P.WINDOW3 | 30 A | Power windows |
| 3 | R.OUTLET3 | 15 A | — |
| 4 | P.WINDOW2 | 25 A | Power windows |
| 5 | ESCL | 15 A | Electronic steering lock |
| 6 | D.LOCK | 25 A | Power door locks |
| 7 | SEAT WARM | 20 A | Seat warmer |
| 8 | SUNROOF | 10 A | — |
| 9 | F.OUTLET | 15 A | Accessory sockets |
| 10 | MIRROR | 7.5 A | Power control mirror |
| 11 | R.OUTLET1 | 15 A | Accessory sockets |
| 12 | SCR3 | 15 A | — |
| 13 | SCR4 | 15 A | — |
| 14 | R.OUTLET2 | 15 A | — |
| 15 | USB | 7.5 A | USB power outlet |
| 16 | PLG | 20 A | Power liftgate* |
| 17 | M.DEF | 7.5 A | Mirror defogger |
| 18 | R.SEAT W | 20 A | Rear seat warmer* |
| 19 | — | — | — |
| 20 | AT IND | 7.5 A | AT shift indicator |
| 21 | P.SEAT P | 30 A | Power seat* |
Engine Compartment Fuse Box
| Fuse No. | Fuse Name | Fuse Rating | Protected Component |
|---|---|---|---|
| 1 | CABIN.+B | 50 A | Protection of various circuits |
| 2 | IG2 | 30 A | Protection of various circuits |
| 3 | INJECTOR ENG.SUB | 30 A | — |
| 4 | SCR1 EVVT | 20 A | — |
| 5 | P.WINDOW1 | 30 A | Power windows |
| 6 | R.HEATER | 20 A | Air conditioner |
| 7 | ADD FAN DE | 40 A | Cooling fan |
| 8 | WIPER.DEI | 20 A | — |
| 9 | DEFOG | 40 A | Rear window defogger |
| 10 | DCDC DE | 40 A | Protection of various circuits |
| 11 | EPB R | 20 A | Electric Parking Brake (EPB) (RH) |
| 12 | EPB L | 20 A | Electric Parking Brake (EPB) (LH) |
| 13 | AUDIO DCDC REG | 30 A | — |
| 14 | FAN GE | 30 A | — |
| 15 | ENG.MAIN | 40 A | Engine control system |
| 16 | ABS/DSC M | 50 A | ABS, Dynamic stability control system |
| 17 | FAN DE | 40 A | Cooling fan |
| 18 | WIPER | 20 A | Front window wiper and washer |
| 19 | HEATER | 40 A | Air conditioner |
| 20 | ADD FAN GE | 30 A | — |
| 21 | ENGINE.IG1 | 7.5 A | Engine control system |
| 22 | C/U IG1 | 15 A | Protection of various circuits |
| 23 | AUDIO2 | 7.5 A | Audio system |
| 24 | METER2 | 7.5 A | Instrument cluster |
| 25 | ENGINE3 | 15 A | Engine control system |
| 26 | ENGINE2 | 15 A | Engine control system |
| 27 | ENGINE1 | 15 A | Engine control system |
| 28 | AT | 15 A | Transaxle control system, ignition switch |
| 29 | H/CLEAN | 20 A | — |
| 30 | A/C | 7.5 A | Air conditioner |
| 31 | AT PUMP | 15 A | Transaxle control system |
| 32 | HORN | 15 A | Horn |
| 33 | R.WIPER | 15 A | Rear window wiper |
| 34 | H/L HI | 20 A | Headlight high beam |
| 35 | ST.HEATER | 15 A | Heated steering wheel |
| 36 | FOG | 15 A | Fog lights |
| 37 | ENG.+B | 7.5 A | Engine control system |
| 38 | H/L LOW L | 15 A | Headlight low beam (LH) |
| 39 | ENGINE4 | 15 A | — |
| 40 | — | — | — |
| 41 | METER1 | 10 A | Instrument cluster |
| 42 | SRS1 | 7.5 A | Air bag |
| 43 | BOSE | 25 A | Bose® Sound System-equipped model |
| 44 | AUDIO1 | 15 A | Audio system |
| 45 | ABS/DSC S | 30 A | ABS, Dynamic stability control system |
| 46 | FUEL PUMP | 15 A | — |
| 47 | FUEL WARM | 25 A | Fuel warmer |
| 48 | TAIL | 15 A | Tail lights, number plate lights |
| 49 | SCR2 FUEL PUMP2 | 25 A | — |
| 50 | HAZARD | 25 A | Hazard warning flashers, direction indicator lights, tail lights, position lights |
| 51 | H/L LOW R | 15 A | Headlight low beam (RH) |
| 52 | OUTLET | 25 A | Accessory sockets |
| 53 | STOP | 10 A | Brake lights |
| 54 | ROOM | 15 A | Protection of various circuits |
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