Mazda3 2012 Fuse Box Info
Fuse box location:
The fuse box is on the vehicle's left side.
Engine compartment fuse box:
Fuse arrangement in engine compartment.
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse | Rating | Functions |
| 1. BOSE | - | - |
| 2. P SEAT | 30A | Power seat* |
| 3. P.WIND | 30A | Power window |
| 4. D LOCK | 25A | Door lock motor |
| 5. - | - | - |
| 6. - | - | - |
| 7. ESCL | - | - |
| 8. SAS | 15A | Air bag |
| 9. - | - | - |
| 10. HAZARD | 15A | Hazard warning flashers, Turn signal lights |
| 11. METER | 15A | Instrument cluster |
| 12. OUTLET | 15A | Accessory sockets |
| 13. R WIPER | 15A | Rear window wiper and washer* |
| 14. CIGAR | 15A | Accessory sockets |
| 15. ROOM2 | - | - |
| 16. HEATER | 10A | Air conditioner |
| 17. MIRROR | 10A | Power control mirror |
| 18. ST SIG | 10A | Engine control system |
| 19. - | - | - |
| 20. AUDIO | 7.5A | Audio system |
| 21. M.DEF | 7.5A | Mirror defroster* |
| 22. AFS | 7.5A | Adaptive Front-Lighting System* |
| 23. - | - | - |
| 24. ENG | 20A | Engine control system |
| 25. - | - | - |
| 26. METER2 | - | - |
| 27. - | - | - |
| 28. AUDIO2 | - | - |
| 29. - | - | - |
| 30. P.WIND | 25A | Power window |
| 31. - | - | - |
| 32. F WIPER | 25A | Front window wiper and washer |
| 33. BOSE 2 | 25A | Bose® Sound System-equipped model* |
| 34. - | - | - |
*Some models.
Engine compartment fuse box:
| Fuse | Rating | Functions |
| 1. FAN2 | 40A | Cooling fan* |
| 2. ENG MAIN | 40A | Engine control system |
| 3. BTN 1 | 50A | For protection of various circuits |
| 4. A/C MAG | 7.5A | Air conditioner |
| 5. H/L HI | 20A | Headlight high beam |
| 6. FOG | 15A | Fog lights* |
| 7. H/L WASH | - | - |
| 8. SUNROOF | 15A | Moonroof* |
| 9. F.DEF RH | - | - |
| 10. F.DEF LH | - | - |
| 11. FAN 1 | 40A | Cooling fan |
| 12. ROOM | 15A | Interior lights |
| 13. TCM | 15A | TCM* |
| 14. DSC | 20A | Dynamic Stability Control system* |
| 15. BTN 2 | 7.5A | For protection of various circuits |
| 16. AT PUMP | - | - |
| 17. HEATER | 40A | Air conditioner |
| 18. INJ | 30A | Injector* |
| 19. R.DEF | 30A | Rear window defroster |
| 20. IGKEY 2 | 40A | For protection of various circuits |
| 21. IGKEY 1 | 40A | For protection of various circuits |
| 22. HORN | 15A | Horn |
| 23. STOP | 15A | Brake lights |
| 24. ENG+B | 10A | Engine control system |
| 25. FUEL PUMP | 25A | Fuel system |
| 26. ABS | 40A | ABS |
| 27. SEAT WARM | 20A | Seat warmer* |
| 28. EHPAS | 80A | Electro-Hydraulic Power Assist Steering |
| 29. - | - | - |
| 30. ABS IG | 7.5A | ABS |
| 31. SWS | 7.5A | Air bag |
| 32. H/L LO RH | 15A | Headlight low beam (RH) |
| 33. H/L LO LH | 15A | Headlight low beam (LH) |
| 34. ILLUM | 7.5A | Dashboard illumination |
| 35. TAIL | 15A | Taillights |
| 36. ENG INJ | 15A | Engine control system |
| 37. ENG BAR | 15A | PCM |
| 38. ENG BAR 2 | 20A | PCM |
| 39. ETV | 15A | Electric throttle valve |
*Some models.
