Understanding the fuse box in your Mazda 2020 CX-5 is crucial for maintaining its electrical system. Fuses protect your vehicle’s circuits from overloads, preventing potential damage to vital components. This guide provides a detailed look at the fuse box locations and their corresponding circuits in your Mazda 2020 CX-5. Knowing these details can be invaluable for troubleshooting electrical issues and performing basic maintenance. The Mazda CX-5 2020 model features fuse boxes in different locations, each serving specific areas of the vehicle. Below, we outline the fuse allocation for both the engine compartment and the interior fuse box, ensuring you have a comprehensive resource for your 2020 Mazda CX-5.
Engine Compartment Fuse Box Diagram
The primary fuse box in your 2020 Mazda CX-5 is located in the engine compartment. This box houses fuses that protect critical engine and vehicle functions. Refer to the diagram and table below for the fuse designations and their protected components.
| Fuse No. | DESCRIPTION | FUSE RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | CABIN.+B | 50 A | Protection of various cabin circuits |
| 2 | IG2 | 30 A | Protection of various ignition circuits |
| 3 | INJECTOR ENG.SUB | 30 A | Engine control system (Specific Models) |
| 4 | SCR1 EVVT | 20 A | Engine control system |
| 5 | P.WINDOW1 | 30 A | Power windows circuit 1 |
| 6 | R.HEATER | 20 A | Rear window heater |
| 7 | ADD FAN DE | 40 A | Cooling fan (Specific Models) |
| 8 | WIPER.DEI | 20 A | Windshield wiper de-icer (Specific Models) |
| 9 | DEFOG | 40 A | Rear window defogger |
| 10 | DCDC DE | 40 A | DC-DC converter circuit |
| 11 | EPB R | 20 A | Electric parking brake (EPB) Right Hand |
| 12 | EPB L | 20 A | Electric parking brake (EPB) Left Hand |
| 13 | AUDIO DCDC REG | 30 A | Audio system and DC-DC regulator |
| 14 | FAN GE | 30 A | Cooling fan (Specific Models) |
| 15 | ENG.MAIN | 40 A | Main engine control system |
| 16 | ABS/DSC M | 50 A | ABS, Dynamic Stability Control system Main circuit |
| 17 | FAN DE | 40 A | Cooling fan (Specific Models) |
| 18 | WIPER | 20 A | Front window wiper and washer |
| 19 | HEATER | 40 A | Air conditioner heater |
| 20 | ADD FAN GE | 30 A | Cooling fan (Specific Models) |
| 21 | ENGINE.IG1 | 7.5 A | Engine control system ignition circuit 1 |
| 22 | C/U IG1 | 15 A | Protection of various control unit ignition circuits |
| 23 | AUDIO2 | 7.5 A | Audio system circuit 2 |
| 24 | METER2 | 7.5 A | Instrument cluster circuit 2 |
| 25 | ENGINE3 | 15 A | Engine control system circuit 3 |
| 26 | ENGINE2 | 15 A | Engine control system circuit 2 |
| 27 | ENGINE1 | 15 A | Engine control system circuit 1 (Specific Models) |
| 28 | AT | 15 A | Transaxle control system (Specific Models), Ignition switch |
| 29 | H/CLEAN | 20 A | Headlight cleaner |
| 30 | A/C | 7.5 A | Air conditioner control circuit |
| 31 | AT PUMP | 15 A | Automatic transmission fluid pump |
| 32 | HORN | 15 A | Horn circuit |
| 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 (Specific Models) |
| 36 | FOG | 15 A | Fog lights (Specific Models) |
| 37 | ENG.+B | 7.5 A | Engine control system battery positive circuit |
| 38 | H/L LOW L | 15 A | Headlight low beam Left Hand |
| 39 | ENGINE4 | 15 A | Engine control system circuit 4 (Specific Models) |
| 40 | ― | ― | Not used |
| 41 | METER1 | 10 A | Instrument cluster circuit 1 |
| 42 | SRS1 | 7.5 A | Supplemental Restraint System (Airbag) circuit 1 |
| 43 | BOSE | 25 A | Bose® Sound System (Specific Models) |
| 44 | AUDIO1 | 15 A | Audio system circuit 1 |
| 45 | ABS/DSC S | 30 A | ABS, Dynamic Stability Control system Sensor circuit |
| 46 | FUEL PUMP | 15 A | Fuel system (Specific Models) |
| 47 | FUEL WARM | 25 A | Fuel warmer (Specific Models) |
| 48 | TAIL | 15 A | Taillights, License plate lights, Parking lights |
| 49 | SCR2 FUEL PUMP2 | 25 A | Engine control system (Specific Models) |
| 50 | HAZARD | 25 A | Hazard warning flashers, Turn signal lights, Parking lights |
| 51 | H/L LOW R | 15 A | Headlight low beam Right Hand |
| 52 | OUTLET | 25 A | Accessory power outlets |
| 53 | STOP | 10 A | Brake lights |
| 54 | ROOM | 15 A | Protection of various interior circuits |
Cabin Fuse Box Diagram (Left Side)
In addition to the engine compartment, your Mazda 2020 CX-5 has a secondary fuse box located inside the cabin, typically on the left side under the dashboard. This fuse box manages fuses for interior accessories and convenience features. Consult the following diagram and table for fuse details within the cabin fuse box of your 2020 CX5 Mazda.
| Fuse No. | DESCRIPTION | FUSE RATING | PROTECTED COMPONENT |
|---|---|---|---|
| 1 | P.SEAT D | 30 A | Power seat Driver’s side (Specific Models) |
| 2 | P.WINDOW3 | 30 A | Power windows circuit 3 |
| 3 | R.OUTLET3 | 15 A | Rear accessory power outlets 3 |
| 4 | P.WINDOW2 | 25 A | Power windows circuit 2 |
| 5 | ESCL | 15 A | Trailer hitch lighting control (Specific Models) |
| 6 | D.LOCK | 25 A | Power door locks |
| 7 | SEAT WARM | 20 A | Seat warmer (Specific Models) |
| 8 | SUNROOF | 10 A | Moonroof (Specific Models) |
| 9 | F.OUTLET | 15 A | Front accessory power outlets |
| 10 | MIRROR | 7.5 A | Power control mirrors |
| 11 | R.OUTLET1 | 15 A | Rear accessory power outlets 1 |
| 12 | SCR3 | 15 A | Engine control system (Specific Models) |
| 13 | SCR4 | 15 A | Engine control system (Specific Models) |
| 14 | R.OUTLET2 | 15 A | Rear accessory power outlets 2 |
| 15 | USB | 7.5 A | USB power outlet (Specific Models) |
| 16 | PLG | 20 A | Power liftgate (Specific Models) |
| 17 | M.DEF | 7.5 A | Mirror defogger (Specific Models) |
| 18 | R.SEAT W | 20 A | Rear seat warmer (Specific Models) |
| 19 | ― | ― | Not used |
| 20 | AT IND | 7.5 A | AT shift indicator (Specific Models) |
| 21 | P.SEAT P | 30 A | Power seat Passenger’s side (Specific Models) |
This guide is designed to help Mazda 2020 CX-5 owners understand their vehicle’s fuse box layout. Always refer to your owner’s manual for the most accurate and up-to-date information, as fuse configurations can vary slightly depending on your specific model and trim level. When replacing fuses, ensure you use the correct amperage rating to prevent electrical system damage. If you’re unsure about any fuse replacement or electrical troubleshooting, it’s always best to consult a qualified mechanic for your Mazda CX 5 2020.
