Toyota Prius 2003 Fuse Box Info
Passenger compartment fuse box location:
The instrument panel fuse box is located on the end of the instrument panel on the driver’s side of the vehicle.
Engine compartment fuse box location:
Luggage compartment fuse box location:
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° and Name | Rating | Functions |
| 19. PANEL | 5A | Audio system, ashtray light, headlight beam level control system, emergency flasher |
| 20. GAUGE | 10A | Gauge and meter, emergency flasher, rear window defogger, service reminder indicator and warning buzzers, back−up light, power window system, air conditioning system |
| 21. HTR | 10A | Air conditioning system |
| 22. TAIL | 7.5A | Parking lights, tail lights, license plate lights, side marker lights |
| 23. ECU–IG | 5A | Air conditioning system, anti–lock brake system, electric power steering, daytime running light system |
| 24. STOP | 15A | Stop lights, high mounted stoplights, anti–lock brake system |
| 25. ACC | 10A | Anti–lock brake system warning light, clock, audio system, multi–information display, shift lock system |
| 26. WIPER | 30A | Windshield wiper |
| 27. ECU–B | 7.5A | Air conditioning system, daytime running light system, electric power steering system, hybrid vehicle immobiliser system |
| 28. CIG | 15A | Power outlet |
| 29. WASHER | 15A | Washer |
| 30. DOOR | 30A | Power door lock system |
| 31. SRS ACC | 10A | SRS airbags, seat belt pretensioners |
| 32. OBD II | 7.5A | No circuit |
| 33. PWR1 | 20A | Power window system |
| 34. AM1 | 5A | “ACC”, “CIG”, “SRS ACC”, “WASHER”, “HTR”, “WIPER”, “ECU–IG” and “GAUGE” fuses |
Engine compartment fuse box (Fuse box 1):
| Fuse/Relay N° and Name | Rating | Functions |
| 1. ABS No.4 | 10A | Anti–lock brake system |
| 2. HTR No.1 | 30A | Air conditioning system |
| 3. HTR No.2 | 30A | Air conditioning system |
| 4. DRL | 7.5A | Daytime running light system |
| 36. HTR No. 3 | 50A | Air conditioning system |
| 37. EMPS | 50A | Electric power steering |
| 38. ABS NO.1 | 40A | Anti–lock brake system |
Engine compartment fuse box (Fuse box 2):
| Fuse/Relay N° and Name | Rating | Functions |
| 5. CDS FAN | 30A | Air conditioning system |
| 6. HORN | 10A | Horn |
| 7. HEAD HI (RH) (Vehicles with Daytime running light system only) | 10A | Right–hand headlight (high beam) |
| 8. AM2 | 15A | Starting system, multiport fuel injection system/sequential multiport fuel injection system, hybrid vehicle immobiliser system |
| 9. THRO | 15A | Electronic throttle control system |
| 10. (Vehicles without DAYTIME RUNNING LIGHT SYSTEM) or HEAD LO (RH) (Vehicles with DAYTIME RUNNING LIGHT SYSTEM) | 10A | Right–hand headlight |
| 11. HEAD HI (LH) (Vehicles without DAYTIME RUNNING LIGHT SYSTEM) | 10A | Left–hand headlight (high beam) |
| 12. BATT FAN | 10A | Battery cooling fan |
| 13. ABS NO.3 | 20A | Hydraulic brake booster |
| 14. HV | 20A | Hybrid system |
| 15. EFI | 15A | Multiport fuel injection system/sequential multiport fuel injection system |
| 16. HEAD (LH) (Vehicles without DAYTIME RUNNING LIGHT SYSTEM) or HEAD LO (LH) (Vehicles with DAYTIME RUNNING LIGHT SYSTEM) | 10A | Left–hand headlight |
| 17. DOME | 15A | Audio system, mult–information display, interior light, trunk light, power window system, wireless remote control system |
| 18. TURN–HAZ | 10A | Turn signal lights, Emergency flasher |
| 39. MF HEAD | 30A | Daytime running light system |
| 40. HTR | 50A | Air conditioning system |
| 41. RDI | 30A | Electric cooling fan |
| 42. ABS NO.2 | 30A | Hydraulic brake booster |
Luggage compartment fuse box:
| Fuse/Relay N° and Name | Rating | Functions |
| 35. DC/DC–S | 5A | Inverter and converter |
