Mazda CX-9 (2016 – 2023) Fuse Box Location & Diagrams
The Mazda CX-9 (2016–2023) features fuse boxes that protect important electrical systems and components from damage. Knowing their locations and fuse assignments helps identify electrical faults and replace blown fuses correctly. This article provides clear fuse box locations, diagrams, fuse ratings, and protected circuits for the Mazda CX-9.
Fuse Box Location
Passenger Compartment Fuse Box
Engine Compartment Fuse Box
Fuse Box Diagrams
Passenger Compartment Fuse Box
Mazda CX-9 (2016 & 2017)
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | P.SEAT D | 30 A | Power seat (Some models) |
| 2 | P.WINDOW3 | 30 A | Power windows (Some models) |
| 3 | R.OUTLET3 | 15 A | Accessory sockets |
| 4 | P.WINDOW2 | 25 A | Power windows |
| 5 | PLG | 20 A | Power liftgate |
| 6 | D.LOCK | 25 A | Power door locks |
| 7 | SEAT WARM | 20 A | Seat warmer |
| 8 | SRS2/ESCL | 15 A | — |
| 9 | SUNROOF | 10 A | Moonroof |
| 10 | INTERIOR2 | 15 A | Audio system |
| 11 | ENG+BB | 7.5 A | Engine control system |
| 12 | MIRROR | 7.5 A | Power control mirror |
| 13 | AT IND | 7.5 A | AT shift indicator |
| 14 | F.OUTLET | 15 A | Accessory sockets |
| 15 | R.OUTLET1 | 15 A | — |
| 16 | — | — | — |
| 17 | M.DEF | 7.5 A | Mirror defogger |
| 18 | — | — | — |
| 19 | AUDIO3 | 15 A | Audio system |
| 20 | — | — | — |
| 21 | P.SEAT P | 30 A | Power seat (Some models) |
Mazda CX-9 (2018 – 2023)
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | P.SEAT D | 30 A | Power seat (Some models) |
| 2 | P.WINDOW3 | 30 A | Power windows |
| 3 | R.OUTLET3 | 15 A | Accessory sockets |
| 4 | P.WINDOW2 | 25 A | Power windows |
| 5 | PLG | 20 A | Power liftgate (Some models) |
| 6 | D.LOCK | 25 A | Power door locks |
| 7 | SEAT WARM | 20 A | Seat wanner (Some models) |
| 8 | SRS2/ESCL | 15 A | Trailer hitch (Some models) |
| 9 | SUNROOF | 10 A | Moonroof (Some models) |
| 10 | INTERIOR2 | 15 A | Audio system |
| 11 | ENG+BB | 7.5 A | Engine control system |
| 12 | MIRROR | 7.5 A | Power control mirror |
| 13 | AT IND | 7.5 A | AT shift indicator |
| 14 | F.OUTLET | 15 A | Accessory sockets |
| 15 | R.OUTLET1 | 15 A | Accessory sockets (Some models) |
| 16 | USB | 15 A | 2018-2019: Not Used; 2020-2023: USB power outlet |
| 17 | M.DEF | 7.5 A | Mirror defogger (Some models) |
| 18 | R.SEAT.WARM | 20 A | Seat wanner (Some models) |
| 19 | AUDIO3 | 15 A | Audio system |
| 20 | P.SEAT RR | 30 A | 2018-2019: Not Used; 2020-2023: Power seat |
| 21 | P.SEAT P | 30 A | Power seat (Some models) |
Engine Compartment Fuse Box
Mazda CX-9 (2016 & 2017)
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | WIPER.DEI | 20 A | — |
| 2 | IG2 | 30 A | For protection of various circuits |
| 3 | INJECTOR | 30 A | Engine control system |
| 4 | — | — | — |
| 5 | P. WINDOW 1 | 30 A | Power windows (Some models) |
| 6 | — | — | — |
| 7 | — | — | — |
| 8 | EVVT | 20 A | Engine control system |
| 9 | DEFOG | 40 A | Rear window defogger |
| 10 | — | — | — |
| 11 | R.HEATER | 40 A | Air conditioner |
| 12 | EPB L | 20 A | Electric parking brake (LH) |
| 13 | AUDIO | 40 A | Audio system |
| 14 | EPB R | 20 A | Electric parking brake (RH) |
| 15 | ENG.MAIN | 40 A | Engine control system |
| 16 | ABS/DSC M | 50 A | ABS, Dynamic stability control system |
| 17 | CABIN.+B | 50 A | For protection of various circuits |
| 18 | WIPER | 20 A | Front window wiper and washer |
| 19 | HEATER | 40 A | Air conditioner |
| 20 | — | — | — |
| 21 | ENGINE.IG1 | 7.5 A | Engine control system |
| 22 | C/U IG1 | 15 A | For protection of various circuits |
| 23 | H/L LOW L | 15 A | Headlight low beam (LH) |
| 24 | H/L LOW R1 | 15 A | — |
| 25 | ENGINE3 | 15 A | Engine control system |
| 26 | ENG1NE2 | 15 A | Engine control system |
| 27 | ENGINE1 | 15 A | Engine control system |
| 28 | AT | 15 A | Transaxle control system |
| 29 | H/CLEAN | 20 A | — |
| 30 | A/C | 7.5 A | Air conditioner |
| 31 | AT PUMP | 15 A | — |
| 32 | STOP | 10 A | Brake lights |
| 33 | R.WIPER | 15 A | Rear window wiper |
| 34 | H/L HI | 20 A | Headlight high beam |
| 35 | H/L LOW R2 | 15 A | Headlight low beam (RH) |
| 36 | FOG | 15 A | Fog lights (Some models) |
| 37 | ENG.+B | 7.5 A | Engine control system |
| 38 | AUDIO2 | 7.5 A | Audio system |
| 39 | INTERIOR | 10 A | Overhead light |
| 40 | METER2 | 15 A | — |
| 41 | METER1 | 10 A | Instrument cluster |
| 42 | SRS1 | 7.5 A | Air bag |
| 43 | AUDIO4 | 10 A | Audio system (Some models) |
| 44 | AUDIO1 | 25 A | Audio system |
| 45 | ABS/DSC S | 30 A | ABS, Dynamic stability control system |
| 46 | — | — | — |
| 47 | ST.HEATER | 15 A | Heated steering wheel (Some models) |
| 48 | TAIL | 15 A | Parking lights |
| 49 | FUEL PUMP2 | 25 A | Fuel system |
| 50 | HAZARD | 25 A | Hazard warning flashers, Turn signal lights, Taillights |
| 51 | DRL | 15 A | Daytime running lights |
| 52 | R.OUTLET2 | 15 A | Accessory sockets |
| 53 | HORN | 15 A | Horn |
| 54 | ROOM | 25 A | For protection of various circuits |
Mazda CX-9 (2018 – 2023)
| № | DESCRIPTION | AMP RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | WIPER. DEI | 20 A | Windshield wiper de-icer (Some models) |
| 2 | IG2 | 30 A | For protection of various circuits |
| 3 | INJECTOR | 30 A | Engine control system |
| 4 | — | — | — |
| 5 | P. WINDOW 1 | 30 A | — |
| 6 | P.SEAT RL | 30 A | 2018-2019: Not Used; 2020-2023: Power seat |
| 7 | — | — | — |
| 8 | EVVT | 20 A | Engine control system |
| 9 | DEFOG | 40 A | Rear window defogger |
| 10 | ST.HEATER2 | 20 A | 2018-2019: Not Used; 2020-2023: Heated steering wheel |
| 11 | R.HEATER | 40 A | Air conditioner |
| 12 | EPB L | 20 A | Electric parking brake (EPB) (LH) |
| 13 | AUDIO | 40 A | Audio system |
| 14 | EPB R | 20 A | Electric parking brake (EPB) (RH) |
| 15 | ENG.MAIN | 40 A | Engine control system |
| 16 | ABS/DSC M | 50 A | ABS, Dynamic stability control system |
| 17 | CABIN.+B | 50 A | For protection of various circuits |
| 18 | WIPER | 20 A | Front window wiper and washer |
| 19 | HEATER | 40 A | Air conditioner |
| 20 | — | — | — |
| 21 | ENGINE.IG1 | 7.5 A | Engine control system |
| 22 | C/U IG1 | 15 A | For protection of various circuits |
| 23 | H/L LOW L | 15 A | Headlight low beam (LH) |
| 24 | H/L LOW R1 | 15 A | — |
| 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 | 2018: Transaxle control system; 2019-2023: Transaxle control system, Ignition switch |
| 29 | H/CLEAN | 20 A | — |
| 30 | A/C | 7.5 A | Air conditioner |
| 31 | AT PUMP | 15 A | — |
| 32 | STOP | 10 A | Brake lights |
| 33 | R.WIPER | 15 A | 2018: Rear window wiper; 2019-2023: Rear window wiper, Theft-deterrent system (Some models) |
| 34 | H/L HI | 20 A | Headlight high beam |
| 35 | H/L LOW R2 | 15 A | Headlight low beam (RH) |
| 36 | FOG | 15 A | Fog lights (Some models) |
| 37 | ENG.+B | 7.5 A | Engine control system |
| 38 | AUDIO2 | 7.5 A | Audio system (Some models) |
| 39 | INTERIOR | 10 A | 2018: Overhead light; 2019-2021: For protection of various circuits |
| 40 | METER2 | 15 A | — |
| 41 | METER1 | 10 A | Instrument cluster |
| 42 | SRS1 | 7.5 A | Air bag |
| 43 | AUDIO4 | 10 A | Audio system (Some models) |
| 44 | AUDIO1 | 25 A | Audio system (Some models) |
| 45 | ABS/DSC S | 30 A | ABS, Dynamic stability control system |
| 46 | VMC | 15 A | 2021-2023: Gateway system |
| 47 | ST.HEATER | 15 A | 2018-2019: Heated steering wheel (Some models); 2020: Not Used; 2021-2023: Audio system |
| 48 | TAIL | 15 A | Parking lights |
| 49 | FUEL PUMP2 | 25 A | Fuel system |
| 50 | HAZARD | 25 A | Hazard warning flashers, Turn signal lights, Taillights |
| 51 | DRL | 15 A | Daytime running lights |
| 52 | R.OUTLET2 | 15 A | Accessory sockets |
| 53 | HORN | 15 A | Horn |
| 54 | ROOM | 25 A | For protection of various circuits |
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