Toyota Prius (2004-2009) Fuse Box Location & Diagrams
The second-generation Toyota Prius is renowned for its reliability, but electrical gremlins can still occur as these hybrids age. Whether you’re dealing with a dead accessory outlet or a mysterious dashboard warning light, the fix often starts with a simple fuse check. In this comprehensive user guide, we provide high-resolution diagrams and exact locations for every fuse box in the 2004–2009 Prius to get you back on the road.
Passenger compartment overview
Passenger Compartment Fuse Box
Toyota Prius (2004 to 2009)
Fuse box location
The fuse box is located under the instrument panel on the driver’s side, under the cover.
Fuse box diagram
| № | Name | Amp | Circuit |
|---|---|---|---|
| 1 | – | – | – |
| 2 | M/HTR | 15 | Outside rear-view mirror heater |
| 3 | WIP | 30 | Windshield wiper |
| 4 | RR WIP | 15 | Rear wiper |
| 5 | WSH | 20 | Washer |
| 6 | ECU-IG | 7.5 | Smart key system, power windows, touch screen, electric power steering, theft deterrent system |
| 7 | GAUGE | 10 | Gauge and meter, backup lights, emergency flasher, power windows |
| 8 | OBD | 7.5 | On-board diagnosis system |
| 9 | STOP | 7.5 | Stop lights |
| 10 | – | – | – |
| 11 | DOOR | 25 | Power door lock system |
| 12 | ACC-B | 25 | “POWER OUTLET”, “ACC” fuses |
| 13 | ECU-B | 15 | Multi-information display, power windows, and an air conditioning system |
| 14 | – | – | – |
| 15 | AM1 | 7.5 | Hybrid system |
| 16 | TAIL | 10 | Tail lights, license plate light, parking lights |
| 17 | PANEL | 7.5 | Multi-information display, clock, audio system, and instrument panel lights |
| 18 | A/C (HTR) | 10 | Air conditioning system |
| 19 | FR DOOR | 20 | Power windows |
| 20 | – | – | – |
| 21 | – | – | – |
| 22 | – | – | – |
| 23 | PWR OUTLET | 15 | Power outlet |
| 24 | ACC | 7.5 | Audio system, multi-information display, clock |
| 25 | – | – | – |
| 26 | – | – | – |
| 27 | – | – | – |
| 28 | – | – | – |
| 29 | PWR OUTLET FR | 15 | Power outlet |
| 30 | IGN | 7.5 | Hybrid system, hybrid vehicle immobiliser system, SRS airbags |
| 31 | – | – | – |
| № | Name | Amp | Circuit | Relay | Relay Function |
|---|---|---|---|---|---|
| 1 | PWR | 30 | Power windows | R1 | Ignition (IG1) |
| 2 | DEF | 40 | Rear window defogger | R2 | Heater (HTR) |
| 3 | – | – | – | R3 | Flasher |
Fusible Link Block
| № | Name | Amp | Circuit |
|---|---|---|---|
| 1 | DC/DS-S | 5 | Inverter and converter |
| 2 | MAIN | 120 | Hybrid system |
Engine Compartment Fuse Box
Toyota Prius (2004 to 2009)
Fuse box location
Fuse box diagram
| № | Name | Amp | Circuit | Relay | Relay Function |
|---|---|---|---|---|---|
| 1 | SPARE | 30 | Spare | R1 | Anti-lock brake system (ABS No.2) |
| 2 | SPARE | 15 | Spare | R2 | Anti-lock brake system (ABS MTR 2) |
| 3 | DRL | 7.5 | Daytime running light system | R3 | Headlight (H-LP) |
| 4 | H-LP LO RH | 10 | with halogen headlight: Right-hand headlight (low beam) | R4 | Dimmer |
| 4 | H-LP LO RH | 15 | with discharged headlight: Right-hand headlight (low beam) | R5 | Parking control system (P CON MTR) |
| 5 | H-LP LO LH | 10 | With halogen headlight: Left-hand headlight (low beam) | R6 | Electric cooling fan (FAN No.3) |
| 5 | H-LP LO LH | 15 | with discharged headlight: Left-hand headlight (low beam) | R7 | Electric cooling fan (FAN No.2) |
| 6 | H-LP HI RH | 10 | Right-hand headlight (high beam) | R8 | Anti-lock brake system (ABS MTR) |
| 7 | H-LP HI LH | 10 | Left-hand headlight (high beam) | R9 | Anti-lock brake system (ABS No.1) |
| 8 | EFI | 15 | Multiport fuel injection system/sequential multiport fuel injection system | – | – |
| 9 | AM2 | 15 | “IGN” fuse, ignition system | – | – |
| 10 | HORN | 10 | Horn | – | – |
| 11 | HEV | 20 | Hybrid system | – | – |
| 12 | P CON MAIN | 7.5 | Parking control system, hybrid vehicle immobiliser system | – | – |
| 13 | P CON MTR | 30 | 2003-2004: Parking control system | – | – |
| 13 | ABS-1 | 25 | 2003-2009: Anti-lock brake system | – | – |
| 14 | ETCS | 10 | Electronic throttle control system | – | – |
| 15 | BATT FAN | 10 | Battery cooling fan | – | – |
| 16 | HAZ | 10 | Turn signal lights, emergency flasher | – | – |
| 17 | DOME | 15 | Audio system, interior lights, smart entry and start system, gauge and meter, turn signal lights, luggage room light, clock | – | – |
| 18 | ABS MAIN3 | 15 | Anti-lock brake system | – | – |
| 19 | ABS MAIN2 | 10 | Anti-lock brake system | – | – |
| 20 | ABS MAIN1 | 10 | Anti-lock brake system | – | – |
| 21 | FR FOG | 15 | Fog lights | – | – |
| 22 | CHS W/P | 10 | CHS W/P | – | – |
| 23 | AMP | 30 | Audio system | – | – |
| 24 | PTC HTR2 | 30 | PTC heater | – | – |
| 25 | PTC HTR1 | 30 | PTC heater | – | – |
| 26 | CDS FAN | 30 | Electric cooling fan | – | – |
| 27 | – | – | – | – | – |
| 28 | – | – | – | – | – |
| 29 | P/I | 60 | “AM2”, “HEV”, “EFI”, “HORN” fuses | – | – |
| 30 | HEAD MAIN | 40 | Headlight relay | – | – |
| 31 | – | – | – | – | – |
| 32 | ABS-1 | 30 | ABS MTR relay | – | – |
| 33 | ABS-2 | 30 | Anti-lock brake system | – | – |
| 34 | – | – | – | – | – |
| 35 | DC/DC | 100 | PWR relay, T-LP relay, IG1 relay, “ACC-B”, “ESP”, “HTR”, “RDI”, “PS HTR”, “PWR OUTLET FR”, “ECU-B”, “OBD”, “STOP”, “DOOR”, “FR DOOR”, “DEF”, “AM1” fuses | – | – |
| 36 | – | – | – | – | – |
| 37 | – | – | – | – | – |
| 38 | PS HTR | 50 | Air conditioner | – | – |
| 39 | RDI | 30 | Engine control, radiator fan and condenser fan, TOYOTA hybrid system | – | – |
| 40 | HTR | 40 | Air conditioner, TOYOTA hybrid system | – | – |
| 41 | ESP | 50 | ESP | – | – |
| 42 | – | – | – | – | – |
Relay Box
| № | Relay |
|---|---|
| R1 | PS HTR |
| R2 | Fog light |
| R3 | PTC heater (PTC HTR1) |
| R4 | PTC heater (PTC HTR2) |
| R5 | Daytime running light system (DRL No.4) |
| R6 | CHS W/P |
| R7 | – |
