Toyota 4Runner 2003 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 |
| 29. IGN | 10A | Multiport fuel injection system/sequential multiport fuel injection system, anti−lock brake system, traction control system (two−wheel drive models), active traction control system (four−wheel drive models), vehicle stability control system, stop light, meter and gauge |
| 30. SRS | 10A | SRS airbag system |
| 31. GAUGE | 7.5A | Meter and gauge |
| 32. STA NO.2 | 7.5A | Multiport fuel injection system/sequential multiport fuel injection system |
| 33. FR WIP−WSH | 30A | Windshield wipers and washer |
| 34. 4WD | 20A | Four−wheel drive control system |
| 35. D P/SEAT | 30A | Driver’s power seat |
| 36. P P/SEAT | 30A | Front passenger’s power seat |
| 37. PWR OUTLET | 15A | Power outlets |
| 38. RR WSH | 15A | Rear window washer, multiplex communication system |
| 39. ECU−IG | 10A | Shift lock control system, power windows, anti−lock brake system, traction control system (two− wheel drive models), active traction control system (four−wheel drive models), vehicle stability control system, electric moon roof, multiplex communication system, theft deterrent system, rear height control air suspension |
| 40. IG1 | 15A | Anti−lock brake system, traction control system (two−wheel drive models), active traction control system (four−wheel drive models), vehicle stability control system, air conditioning system, charging system, rear window defogger, back−up lights, turn signal lights, emergency flashers, seat heaters, AC inverter, instrument panel light control, auto anti−glare inside rear view mirror, SRS airbag system |
| 41. STA | 7.5A | No circuit |
| 42. SECU/HORN | 10A | Theft deterrent system |
| 43. TAIL | 10A | Tail lights, license plate lights, parking lights, instrument panel light control, multiport fuel injection system/sequential multiport fuel injection system, instrument panel lights, meter and gauge, grove box light |
| 44. ACC | 7.5A | Power outlets, outside rear view mirrors, audio system, navigation system, rear seat audio system, shift lock control system, instrument panel lights |
| 45. CIG | 10A | No circuit |
| 56. POWER | 30A | Power windows, electric moon roof |
Engine compartment fuse box:
| Fuse/Relay N° and Name | Rating | Functions |
| 1. SPARE | 10A | Spare fuse |
| 2. SPARE | 15A | Spare fuse |
| 3. STOP | 10A | Stop/tail lights, high mounted stoplight, shift lock control system, anti−lock brake system, traction control system (two−wheel drive models), active traction control system (four−wheel drive models), vehicle stability control system, rear height control air suspension, multiport fuel injection system/sequential multiport fuel injection system, trailer brake controller, trailer lights (tail lights) |
| 4. AC115V INV | 15A | AC inverter |
| 5. FR FOG | 15A | Front fog lights |
| 6. OBD | 7.5A | On−board diagnosis system |
| 7. HEAD (LO RH) | 10A | Right−hand headlight (low beam) |
| 8. HEAD (LO LH) | 10A | Left−hand headlight (low beam) |
| 9. HEAD (HI RH) | 10A | Right−hand headlight (high beam) |
| 10. HEAD (HI LH) | 10A | Left−hand headlight (high beam) |
| 11. EFI NO.2 | 10A | Multiport fuel injection system/sequential multiport fuel injection system |
| 12. HEATER NO.2 | 7.5A | Air conditioning system |
| 13. AIRSUS NO.2 | 10A | Rear height control air suspension |
| 14. SEAT HEATER | 25A | Seat heaters |
| 15. DEFOG | 30A | Rear window defogger, multiport fuel injection system/sequential multiport fuel injection system |
| 16. MIR HEATER | 10A | Outside rear view mirror heater |
| 17. DOME | 10A | Interior light, personal lights, wireless remote control system, door courtesy lights, rear seat audio system, gauge and meter, vanity lights, instrument panel lights, running board lights, multiplex communication system |
| 18. RADIO NO.1 | 20A | Audio system, navigation system |
| 19. ECU−B | 10A | Anti−lock brake system, navigation system, traction control system (two−wheel drive models), active traction control system (four−wheel drive models), vehicle stability control system, air conditioning system, multiplex communication system, theft deterrent system |
| 20. ALT−S | 7.5A | Charging system |
| 21. HORN | 10A | Horns |
| 22. A/F HEATER | 15A | No circuit |
| 23. TRN−HAZ | 15A | Turn signal lights, emergency flashers |
| 24. ETCS | 10A | Multiport fuel injection system/sequential multiport fuel injection system |
| 25. EFI | 20A | Multiport fuel injection system/sequential multiport fuel injection system |
| 26. DR/LCK | 20A | Power door lock system |
| 27. TOWING | 30A | Towing converter |
| 28. RADIO NO.2 | 20A | Audio system |
| 46. HEATER | 50A | Air conditioning system |
| 47. AIRSUS | 50A | Rear height control air suspension |
| 48. AM1 | 50A | All components in “ACC”, “CIG”, “IG1”, “ECU−IG”, “FR WIP− WSH”, “RR WIP”, “RR−WSH”, “4WD”, and “STA” fuses |
| 49. TOWING BRK | 30A | Trailer brake controller |
| 50. J/B | 50A | All components in “PWR OUTLET”, “D P/SEAT”, “P P/SEAT”, “POWER”, “TAIL” and “SECU/HORN” fuses |
| 51. BATT CHG | 30A | Trailer sub battery |
| 52. TOWING | 40A | Trailer lights (tail lights) |
| 53. ABS MTR | 40A | Anti−lock brake system, traction control system (two−wheel drive models), active traction control system (four−wheel drive models), vehicle stability control system |
| 54. AM2 | 30A | Starter system, “IGN”, “GAUGE”, “STA NO.2” and “SRS” fuses |
| 55. ABS SOL | 50A | Anti−lock brake system, traction control system (two−wheel drive models), active traction control system (four−wheel drive models), vehicle stability control system |
| 57. ALT | 140A | All components in “AM2”, “ALT−S”, “DR/LCK”, “TRN−HAZ”, “HORN”, “RADIO NO.2”, “EFI”, “TOWING”, “ABS MTR”, “ABS SOL” and “ETCS” fuses |
