Check the interior panel under the dashboard first when power windows, radio, or dashboard lights stop working, as most cabin circuits are routed through this distribution point.
This panel is usually mounted near the driver side footwell and covered by a removable plastic lid. Each slot is marked with an amperage value, commonly ranging from 10A to 30A, and linked to systems such as air conditioning, lighting, and accessory power. Match the rating exactly when replacing a blown element to avoid overheating or repeated failure.
Under the hood, a second power distribution unit handles higher current loads like cooling fans and ignition supply. Inspect both interior and engine compartment panels during diagnostics, since issues can originate from either section depending on the affected system.
Use a multimeter or test light to verify current flow across each terminal instead of relying only on visual checks. A damaged element often shows a broken metal strip or discoloration, while repeated failure points to wiring damage or a faulty connected component.
Location of Interior and Engine Bay Fuse Boxes in Toyota Vios 2006
Open the driver side lower dashboard panel to access the interior distribution unit, typically mounted near the steering column above the footwell area.
This cabin-mounted panel is hidden behind a small plastic cover that can be removed by hand. Inside, a row of protective inserts is aligned horizontally, each linked to systems such as dashboard lighting, audio unit, and climate controls. Use a flashlight to clearly see slot labels, as the mounting position limits visibility.
Lift the hood and locate the engine bay distribution unit near the battery, usually positioned along the side wall of the engine compartment within a sealed plastic housing.
This external unit contains larger inserts and relays responsible for high-load systems like cooling fans and ignition supply. Release the cover clips carefully to avoid damaging aged plastic, and note component positions before removal to maintain correct placement.