Check the cabin-mounted electrical panel under the dashboard on the driver side and match each numbered slot with the legend on the cover before removing any component.
This model uses two main power distribution centers: one inside the cabin for low and medium load circuits, and another in the engine compartment for high-current systems. The interior unit typically controls lighting, audio, power windows, and dashboard indicators, with ratings from 10A to 20A. The engine bay unit handles cooling fans, ignition, and charging circuits, often marked between 30A and 80A. Each position is numbered and linked to a specific circuit path, allowing accurate identification during inspection.
Always confirm the amperage printed on each blade insert before replacement to prevent wiring damage or overheating. Use a multimeter to test continuity across terminals and check for stable voltage. Inspect contact clips for corrosion or looseness, and ensure each component is firmly seated after installation.
2008 Subaru Outback Fuse Box Diagram with Slot Numbers and Circuit Details
Match each numbered slot on the cabin electrical panel with the legend printed on the cover to identify circuit roles before removing any blade component.
The interior distribution unit is arranged in rows with clearly marked positions. Typical assignments include:
- Slots 1–4 lighting circuits such as tail lamps and dashboard illumination rated at 10A
- Slots 5–8 audio system, clock memory, and accessory outlets rated at 15A
- Slots 9–12 wipers, turn signals, and brake lights rated between 10A and 20A
- Slots 13–16 power windows and central locking rated at 20A to 30A
Each position corresponds to a dedicated electrical path, so confirm both slot number and amperage marking before replacement. Use a multimeter to check continuity and verify voltage presence, and inspect terminals for heat damage or oxidation to maintain stable current flow.
Location of interior and engine bay fuse boxes with access instructions
Open the driver side lower dashboard cover and locate the cabin power distribution unit positioned near the steering column above the footwell.
This interior unit is hidden behind a removable plastic panel. Pull the cover outward to release retaining clips, then use the printed legend on the backside to identify slot numbers. Ensure ignition is off before touching any component to avoid short circuits.
Access steps for cabin panel
Turn off ignition, remove key, and disconnect accessories. Kneel near the driver footwell, grip the trim cover, and pull gently until clips disengage. Use a plastic puller tool to remove blade components without damaging contacts.
The engine compartment power unit is mounted near the battery, typically on the left side. It is enclosed in a black housing with a snap-on lid that protects high-current circuits such as cooling fans, ignition supply, and charging lines.
Access steps for engine bay unit
Open the hood and secure it with the support rod. Locate the protective housing, press the locking tabs or release clips, and lift the cover. Check the molded layout inside the lid before removing any component, then reconnect everything securely after inspection.
Disconnect the negative battery terminal before working in the engine compartment to prevent electrical damage. Ensure covers are fully reinstalled to protect internal contacts from moisture and debris.