Subaru debuted the third-generation Impreza at the New York International Auto Show in April 2007, unveiling both the naturally aspirated base model and the turbocharged WRX. This article provides detailed fuse box diagrams and component locations for the Subaru Impreza (chassis codes GH, GE), WRX, and WRX STI across model years 2007 through 2012, covering the EL15 (1.5 L), EJ20 (2.0 L), and EJ25 (2.5 L Turbo) engines.
Below are the component locations and diagrams for the power distribution boxes. Fuses for the “Cigarette Lighter” and “Fuel Pump” circuits are highlighted in bold.
Engine Compartment Fuse Box
The engine compartment fuse box is located on the right side behind a protective cover.
Overall view.
| Fuse Box Diagram | ||
|---|---|---|
|
||
| No. | Rating (A) | Circuit Protected |
| 1 | 30 | ABS, VDC system |
| 2 | 25 | Radiator cooling fan |
| 3 | 25 | Auxiliary cooling fan |
| 4 | - | Unused |
| 5 | 10 | Audio system unit |
| 6 | 30 | Low beam headlights |
| 7 | 15 | High beam headlights |
| 8 | 20 | Reverse lights |
| 9 | 15 | Horn |
| 10 | 25 | Rear window defogger, heated side mirrors, windshield wiper de-icer |
| 11 | 15 | Fuel pump fuse |
| 12 | 10 | Automatic Transmission Control Module (ATCM) |
| 13 | 7.5 | Engine Control Module (EGI / ECM) power supply |
| 14 | 15 | Turn signals |
| 15 | 15 | Parking lights / Clearance lights |
| 16 | 7.5 | Alternator |
| 17 | 15 | Right headlight |
| 18 | 15 | Left headlight |
| Relays | ||
|
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| Engine Compartment Relay Box |
|---|
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| Relay Box (Keyless Access & Start System) |
|---|
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Passenger Compartment Fuse Box
The main interior fuse box is located on the driver's side at the bottom of the instrument panel, behind a removable cover. A primary relay block is mounted adjacent to it, and an auxiliary relay block is located on the passenger side.
Overall view of the driver's side panel (including relay block).
| Fuse Box Diagram | ||
|---|---|---|
|
||
| No. | Rating (A) | Circuit Protected |
| 1 | 20 | Front fog light relay |
| 2 | - | Unused |
| 3 | 15 | Power door locks, keyless entry system |
| 4 | 10 | Navigation system |
| 5 | 10 | Instrument cluster |
| 6 | 7.5 | Power side mirrors |
| 7 | 15 | Multi-function display |
| 8 | 20 | Brake lights |
| 9 | 15 | Windshield wiper de-icer |
| 10 | 7.5 | Constant battery power supply |
| 11 | 7.5 | Turn signals |
| 12 | 15 | Automatic Transmission Control Module, Engine Control Module, multi-function display |
| 13 | 20 | Auxiliary power socket (center console) |
| 14 | 15 | Parking lights, tail lights |
| 15 | - | Unused |
| 16 | 10 | Instrument panel illumination / Backlighting |
| 17 | 15 | Seat heaters |
| 18 | 10 | Reverse lights |
| 19 | - | Unused |
| 20 | 10 | Cigarette lighter and auxiliary power socket fuse. Note: An inline thermal fuse mounted on the back of the socket housing also protects the cigarette lighter circuit. |
| 21 | 7.5 | Starter relay |
| 22 | 15 | Air conditioning system (A/C) |
| 23 | 15 | Rear wiper and washer |
| 24 | 15 | Navigation system |
| 25 | 15 | SRS airbag system |
| 26 | 7.5 | Power window relay, cooling fan relay |
| 27 | 15 | Blower motor (heater/AC) |
| 28 | 15 | |
| 29 | 15 | Front fog lights |
| 30 | 30 | Windshield wiper and washer |
| 31 | 7.5 | Air conditioning, multi-function display |
| 32 | - | Unused |
| 33 | 7.5 | ABS, VDC system |
| Passenger Compartment Relay Blocks | |
|---|---|
| No. | Description |
| Driver's side (adjacent to main fuse panel) | |
|
|
| F1 | Unused |
| F2 | Body control module / Multi-function module (10 A) |
| F3 | Windshield wiper / washer (15 A) |
| F4 | Glow plug signal (7.5 A) |
| 1 | Starter relay |
| 2 | Power window relay |
| 3 | Tail light relay |
| 4 | Unused |
| 5 | Front fog light relay |
| 6 | Rear fog light relay |
| 7 | Windshield wiper de-icer relay |
| 8 | Seat heater relay |
| 9 | Turn signal and hazard flasher relay |
| Passenger side | |
|
|
| F1 | Engine control system |
| F2 | |
| F3 | |
| 1 | Oxygen (A/F) sensor relay |
| 2 | Fuel pump relay |
| 3 | Unused |
| 4 | Unused |
| 5 | Unused |
| 6 | Electronic throttle control relay |
| 7 | Unused |
| 8 | Unused |