
Check the interior panel under the dashboard first when dealing with issues like non-working infotainment system, power windows, or interior lighting. Match each numbered slot with its assigned circuit using the cover label, and confirm ratings such as 7.5A for memory systems, 10A for control modules, and 15A–20A for higher load components.
The engine compartment distribution unit near the battery manages high-current systems including cooling fans, ignition relay, and braking electronics. Disconnect the negative battery terminal before inspection to prevent short circuits. Look for melted plastic, loose contacts, or discoloration, which indicate overheating or poor connection rather than a simple failed link.
Use a multimeter to verify continuity instead of relying only on visual inspection. A working link shows near-zero resistance, while a damaged one interrupts current flow. Keeping spare inserts with matching ratings helps restore electrical functions without risking wiring damage or control unit failure.
2015 Honda Accord Sport Fuse Box Diagram

Check the driver side lower dash panel first, then match each slot number with its rated current printed on the cover insert; this ensures accurate identification of circuits linked to lighting, audio, and onboard electronics.
The interior distribution panel is arranged in vertical rows, typically numbered from top left to bottom right. Each position corresponds to a specific system such as power windows, central locking, or instrument cluster. Ratings usually range from 7.5A for control modules to 20A or higher for motors and heated components.
For lighting circuits, locate slots assigned to headlamps, tail lamps, and interior illumination; these are commonly grouped together. If a lighting issue appears, compare amperage markings and replace only with the same rating to prevent wiring damage.
Audio and accessory outlets share mid-range positions with values around 10A to 15A. A non-working radio or charging port often traces back to these slots. Verify continuity with a multimeter before swapping components.
Climate control systems are protected by higher-rated elements, often positioned toward the center or lower section of the panel. Blower motors and AC controls draw more current, so expect ratings above 20A in these locations.
Safety-related systems such as airbags and ABS are tied to dedicated positions that should not be altered casually. If one of these slots shows failure, inspect wiring and connectors rather than replacing the protective element repeatedly.
Use the printed legend on the panel cover as the primary reference, as layout variations may exist depending on trim level. Cross-check slot numbers with circuit names to avoid confusion.
Keep spare components of matching ratings in the glove compartment and label any replacements performed; this helps track recurring electrical faults and speeds up future diagnostics.
Interior fuse box layout with fuse numbers amperage and circuit functions

Locate the cabin-mounted panel under the driver side dashboard and match each numbered slot with the legend printed on the cover; this avoids selecting the wrong circuit during inspection or replacement.
Numbered positions typically follow a grid pattern, where upper rows handle low-current electronics and lower rows supply higher draw components. Common rating ranges include:
- 7.5A for control units and sensors
- 10A–15A for audio system and accessory outlets
- 20A–30A for motors such as windows or seat adjustment
Identify lighting-related circuits grouped in adjacent positions, often labeled for headlamps, interior lamps, and signal indicators. If lights fail, inspect these slots first and verify that the installed element matches the specified amperage to avoid overheating or wiring damage.
Mid-section slots usually supply infotainment, dashboard displays, and charging ports. A quick check with a test light or multimeter helps confirm power flow without removing multiple components unnecessarily.
Lower section entries are commonly assigned to climate control systems and high-load devices. These positions require strict adherence to rating values; installing a higher-rated element may allow excess current and lead to insulation failure or connector melting.