
Locate the primary electrical panel behind the glove compartment on the passenger side for quick access to all protective switches. Refer to the labeling on the interior cover to identify each circuit connector accurately, including those responsible for lighting, infotainment, and climate control systems.
For power distribution in the engine compartment, check the secondary control panel near the battery. Each slot is designated for specific modules such as the starter relay, fuel pump, and ignition system, reducing troubleshooting time and preventing accidental disconnection of unrelated circuits.
Regular inspection of each conductor holder is recommended to prevent corrosion and overheating. Ensure all retainers are properly seated and that the amperage ratings match the component requirements. Misplacement or using a higher-rated protector can lead to malfunction or damage.
When replacing or testing, document the location of each connector to maintain system integrity. Use a compact flashlight and a multimeter for precise voltage verification, especially for circuits controlling safety devices like airbags and ABS modules.
For vehicles equipped with auxiliary accessories, additional mini connectors may be present near the dashboard or trunk. Cross-check with the service manual to avoid confusion and ensure each slot corresponds to the correct auxiliary function, from rear defoggers to audio amplifiers.
Hyundai i20 Fuse Box Diagram
Locate the power distribution unit under the dashboard on the driver’s side for interior electrical access. Check the labeling on the lid for circuits controlling headlights, wipers, and the infotainment system.
For the engine compartment, the modular electric panel is positioned near the battery. Identify high-amperage circuits like the ignition coil, cooling fan, and ABS module by their slot numbers for safe replacement.
Each slot has a unique rating indicated in amperes. Use the vehicle’s manual to cross-reference numbers, ensuring a 10A slot isn’t replaced with a 20A component, which could cause overheating.
To inspect a malfunctioning light or sensor, remove the protective cover and gently extract the fuse using a dedicated puller. Avoid metal tools that can short the circuit.
Slots controlling auxiliary power outlets, cigarette lighters, and seat heaters are grouped together. Label each connector with masking tape to track replacements accurately.
Modern panels integrate micro-relays for door locks and power mirrors. Identifying these requires checking the small diagrams printed inside the protective cap rather than guessing by position.
After any replacement, test the circuit by turning on the ignition and verifying operation of the connected device. If the component immediately blows again, inspect wiring for shorts before swapping another slot.
Keep a spare assortment of amperage-specific components in the glove compartment. Store them in labeled compartments to prevent confusion and ensure immediate access during roadside troubleshooting.
Locating the Fuse Compartments Inside the Cabin and Engine Bay

Access the interior power relay panel by opening the driver’s side lower dashboard cover. Release the two retaining clips at the bottom edge, then gently pull the cover outward to expose the modular circuit holders.
Inside the cabin, a secondary electrical panel sits near the glove compartment. Slide the panel’s latch sideways and drop the door down to reveal rows of miniature circuit protectors, each clearly numbered for reference.
Under the hood, the main power distribution hub is positioned on the left side, close to the battery. Lift the protective lid by pressing the small tabs on both sides. Ensure the engine is off to avoid sparks during inspection.
- Driver’s side dash: lower cover, clips at bottom
- Glove compartment area: secondary access panel, sliding latch
- Engine bay: left near battery, tab-lift lid
For maintenance, mark each blown protector before removal. Use a flat-head tool to gently pry out the faulty unit. Avoid pulling multiple units at once, as it may misalign the retention grid.
Identifying Panel Layouts

Panels are divided by amperage ratings, often printed directly on the holders. Interior modules usually control lighting, wipers, and auxiliary sockets. The engine bay hub governs ignition, cooling fans, and fuel system relays.
Label each compartment clearly with a small sticker or marker. This prevents confusion during future replacements and speeds up troubleshooting, especially for night inspections or emergency stops.