
Locate the driver-side dashboard panel and the unit near the battery before troubleshooting any electrical issue, and verify each blade rating printed on the component to avoid damaging connected systems.
The vehicle uses two main power distribution centers: one inside the cabin for lower-load circuits and another in the engine compartment for high-current systems. Typical ratings include 10A for lighting and control modules, 15A for accessory outlets and audio, and 40A to 50A for components like cooling fans or power distribution relays.
Each slot is identified by a short code and arranged in rows. Matching these codes with a layout reference allows quick fault isolation. For instance, a non-working radio often points to a mid-range amperage slot in the cabin panel, while failure of power seats or windows usually connects to higher-rated positions in the under-hood unit.
Test continuity with a multimeter instead of relying only on visual checks, since internal breaks can be difficult to see. Keeping spare blade components in common ratings such as 10A, 15A, 20A, and 30A reduces downtime when electrical problems occur.
2005 Nissan Armada Fuse Box Diagram with Layout and Circuit Details

Match each slot code with its circuit before removing any blade component, since identical size does not guarantee the same amperage or function within the vehicle’s electrical system.
The power distribution panels are arranged in structured rows with labeled positions. Each slot corresponds to a specific system such as lighting, audio, power seats, or control modules. Common label examples include ACC for accessories, AUDIO for sound system power, P/SEAT for seat motors, and IGN for ignition circuits, with ratings typically ranging from 10A to 50A depending on load requirements.
Follow a consistent counting pattern from the top left corner when identifying slots, and confirm amperage markings before replacement. Using a higher-rated component can lead to wiring damage, while a lower rating may interrupt normal operation under load conditions.
Locations of Cabin and Engine Bay Fuse Panels in 2005 Armada

Check the driver-side lower dash first, as the interior power distribution unit sits behind a removable plastic cover near the kick panel, accessible without tools in most cases.
The cabin section handles lower-load circuits and control modules. Access requires opening the driver door and pulling off the trim panel at knee level. Inside, rows of blade components are arranged vertically with printed labels facing outward. Typical circuits located here include:

- Interior lighting
- Audio system
- Power mirrors and windows
- Diagnostic connector power
Lift the hood and move toward the battery area to reach the engine compartment unit, which is protected by a sealed plastic cover secured with clips.
This under-hood distribution center manages high-current systems and relays. It is positioned adjacent to the battery on the passenger side. Removing the cover reveals larger cartridge-style components and relays responsible for:
- Cooling fans
- Starter circuit
- ABS system
- Main power distribution lines
Press the locking tabs firmly before lifting covers to avoid breaking plastic clips, especially in cold conditions where materials become brittle.