2003-2009 Toyota Prius (XW20)
Engine Compartment
- Fuse Box
- Headlight Control ECU LH (2003-2005)
- Headlight Control ECU RH (2003-2005)
- Relay Box
Engine Compartment Fuse Box
| No. | Name | A | Description |
|---|---|---|---|
| 1 | SPARE | 30 | Spare |
| 2 | SPARE | 15 | Spare |
| 3 | DRL | 7.5 | Daytime running light system |
| 4 | H−LP LO RH | 10 | with halogen headlight: Right−hand headlight (low beam) |
| 15 | with discharged headlight: Right−hand headlight (low beam) | ||
| 5 | H-LP LO LH | 10 | with halogen headlight: Left−hand headlight (low beam) |
| 15 | with discharged headlight: Left−hand headlight (low beam) | ||
| 6 | H−LP HI RH | 10 | Right−hand headlight (high beam) |
| 7 | H−LP HI LH | 10 | Left−hand headlight (high beam) |
| 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 immobilizer system |
| 13 | P CON MTR | 30 | 2003-2004: Parking control system |
| 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 | |||
| R1 | Anti−lock brake system (ABS No.2) | ||
| R2 | Anti−lock brake system (ABS MTR 2) | ||
| R3 | Headlight (H-LP) | ||
| R4 | Dimmer | ||
| R5 | Parking control system (P CON MTR) | ||
| R6 | Electric cooling fan (FAN No.3) | ||
| R7 | Electric cooling fan (FAN No.2) | ||
| R8 | Anti−lock brake system (ABS MTR) | ||
| R9 | Anti−lock brake system (ABS No.1) | ||
Engine Compartment Relay Box
| No. | Description |
|---|---|
| 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 | - |
Passenger Compartment
- Navigation ECU
- Skid Control ECU
- Fuse Box
- ACC Relay
- Body ECU
- Mirror Heater Relay
- Power Outlet Relay
- Daytime Running Light Relay
- Power Source Control ECU
- Smart Key ECU
- Center Connector No.1
- Tire Pressure Warning ECU
- Power Steering ECU
- Gateway ECU
- Transponder Key Computer
- Hybrid Vehicle Control ECU
- Engine Control Module
- Center Connector No.2
- Headlight Beam Level Control ECU
- Transmission Control ECU
- Stereo Component Amplifier
- A/C Control Assembly
- Airbag Sensor Assembly
Passenger Compartment Fuse Box
| No. | Name | A | Description |
|---|---|---|---|
| 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, air conditioning system |
| 14 | - | - | - |
| 15 | AM1 | 7.5 | Hybrid system |
| 16 | TAIL | 10 | Tail lights, license plates light, parking lights |
| 17 | PANEL | 7.5 | Multi−information display, clock, audio system, 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 immobilizer system, SRS airbags |
| 31 | - | - | - |
| No. | Name | A | Description |
|---|---|---|---|
| 1 | PWR | 30 | Power windows |
| 2 | DEF | 40 | Rear window defogger |
| 3 | - | - | - |
| Relay | |||
| R1 | Ignition (IG1) | ||
| R2 | Heater (HTR) | ||
| R3 | Flasher | ||
- Occupant Classification ECU
- Overhead J/B
- Door Control Receiver
- Rear Wiper Relay
- Battery Fan Relay
- Tire Pressure Warning Antenna and Receiver
- Fusible Link Block
- Battery ECU
- System Main Relay
Fusible Link Block
| No. | Name | A | Description |
|---|---|---|---|
| 1 | DC/DS-S | 5 | Inverter and converter |
| 2 | MAIN | 120 | Hybrid system |