Toyota 4Runner 2012 Fuse Box Info
Passenger compartment fuse box location:
The fuse box is located under the instrument panel on the driver side of the vehicle.
Engine compartment fuse box location:
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° and Name | Rating | Functions |
| 1. TAIL | 10A | Stop/tail lights |
| 2. PANEL | 7.5A | Instrument panel lights |
| 3. GAUGE | 7.5A | Meter and gauge |
| 4. IGN | 10A | Multiport fuel injection system/ sequential multiport fuel injection system, air bag system, smart key system |
| 5. WASHER | 20A | Wiper and washer |
| 6. WIP | 30A | Wiper and washer |
| 7. S/ROOF | 25A | Electric moon roof |
| 8. DOOR RR | 25A | Power windows |
| 9. DOOR D | 25A | Power windows |
| 10. DOOR BACK | 30A | Multiplex communication system |
| 11. DOOR P | 30A | Power windows |
| 12. P/SEAT FR | 30A | Front passenger's power seat |
| 13. S/HTR FR | 20A | Seat heater system |
| 14. ECU-IG NO.2 | 10A | Air conditioning system, multiport fuel injection system/ sequential multiport fuel injection system |
| 15. IG1 | 7.5A | Turn signal lights, emergency flashers |
| 16. ECU-IG NO.1 | 10A | Vehicle stability control system, tire pressure warning system, steering sensor |
| 17. DOOR | 7.5A | Power windows |
| 18. DOOR RL | 25A | Power windows |
| 19. AM1 | 7.5A | Starter system |
| 20. A/C | 7.5A | Air conditioning system |
| 21. OBD | 7.5A | On-Board diagnosis |
| 22. FOG FR | 15A | Fog lights |
| 23. D/L NO.2 | 25A | Multiplex communication system |
| 24. P/SEAT FL | 30A | Front driver’s power seat |
| 25. 4WD | 20A | Four wheel drive system |
| 26. KDSS | 10A | Kinetic dynamic suspension system |
| 27. TOWING BKUP | 10A | Trailer back-up lights |
| 28. BKUP LP | 10A | Back-up lights |
| 29. ACC | 7.5A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 30. P/OUTLET | 15A | Power outlets |
Engine compartment fuse box:
| Fuse/Relay N° and Name | Rating | Functions |
| 1. PTC HTR NO.3 | 30A | PTC heater |
| 2. DEF | 30A | Rear window defogger |
| 3. DEICER | 20A | Windshield wiper de-icer |
| 4. PTC HTR NO.2 | 30A | PTC heater |
| 5. SUB BATT | 30A | Trailer sub battery |
| 6. PTC HTR NO.1 | 50A | PTC heater |
| 7. MIR HTR | 10A | Outside rear view mirror defoggers |
| 8. TOWING TAIL | 30A | Trailer tail light |
| 9. A/C COMP | 10A | Air conditioning system |
| 10. STOP | 10A | Stop/tail lights |
| 11. IG2 | 20A | INJ, IGN, GAUGE fuses |
| 12. HORN | 10A | Horn(s) |
| 13. EFI | 25A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 14. A/F | 20A | A/F sensor |
| 15. H-LP RH-HI | 10A | Right-hand headlight (high beam) |
| 16. H-LP LH-HI | 10A | Left-hand headlight (high beam) |
| 17. HTR | 50A | Air conditioning system |
| 18. 400W INV | 80A | Power outlets |
| 19. ST | 30A | Starter system |
| 20. H-LP HI | 20A | H-LP RH-HI, H-LP LH-HI fuses |
| 21. ALT-S | 7.5A | Charging system |
| 22. TURN&HAZ | 15A | Turn signal lights, emergency flashers |
| 23. ETCS | 10A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 24. PRB | 30A | Automatic running boards system |
| 25. TOWING | 30A | Trailer stop/turn lights |
| 26. SHORT PIN | - | No circuit |
| 27. RAD NO.1 | 10A | Audio system |
| 28. AM2 | 7.5A | Starter system |
| 29. MAYDAY | 7.5A | Safety connect |
| 30. AMP | 30A | Audio system |
| 31. ABS NO.1 | 50A | ABS, VSC |
| 32. ABS NO.2 | 30A | ABS, VSC |
| 33. DOME | 10A | Interior lights, vanity lights |
| 34. ECU-B | 10A | Multiplex communication system, meter and gauge |
| 35. H-LP RH-LO | 10A | Right-hand headlight (low beam) |
| 36. H-LP LH-LO | 10A | Left-hand headlight (low beam) |
| 37. INJ | 10A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 38. EFI NO.2 | 7.5A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 39. ALT |
140A |
HTR, 400W INV, A/C COMP, TOWING TAIL, SUB BATT, MIR HTR, DEF, DEICER, STOP, PTC HTR NO.1, PTC HTR NO.2, PTC HTR NO.3, S/HTR FR, ACC, P/OUTLET, IG1, ECU-IG NO.1, ECU-IG NO.2, WIP, WASHER, KDSS, 4WD, BKUP LP, TOWING BKUP, DOOR P, DOOR RL, DOOR RR, DOOR D, P/SEAT FL, P/SEAT FR, DOOR, A/C, OBD, DOOR BACK, S/ROOF, PANEL, TAIL, FOG FR, D/L NO.2 fuses |
| 40. SPARE | 10A | - |
| 41. SPARE | 15A | - |
| 42. SPARE | 20A | - |
| 43. P/I-B | 80A | IG2, EFI, A/F, HORN fuses |
| 44. SECURITY | 10A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 45. SMART | 7.5A | Smart key system |
| 46. STRG LOCK | 20A | Steering lock system |
| 47. TOWING BRK | 30A | Trailer brake controller |
