The fuse boxes on a 2018 Honda Accord are two: one in the engine compartment on the driver’s side and one inside the cabin behind the left dash panel. This guide explains exactly where to find them and how to access them safely.
In more detail, the Accord splits electrical protection between an under-hood fuse box and a secondary fuse box inside the car. Each box has its own cover with a diagram showing which fuses control which systems. Knowing the exact locations helps you diagnose blown fuses, replace them with the correct amperage, and avoid unnecessary disassembly.
Engine compartment fuse box
The engine bay houses the main fuse and relay box on the driver’s side, near the strut tower. The cover includes a diagram that identifies each fuse. Here’s how to locate and inspect it:
Before you begin the steps below, ensure the engine is off, the keys are out of the ignition, and you’ve engaged the parking brake.
- Open the hood and secure it with the prop rod.
- On the driver’s side of the engine bay, locate the black plastic fuse box with a removable cover near the fender/strut tower.
- Release or lift the cover to expose the fuse diagram inside or on the underside of the lid.
- Use the fuse puller (often built into the cover) or needle-nose pliers to remove and inspect fuses for a blown filament.
- If you need to replace a fuse, install one with the same amperage rating shown on the diagram.
The engine compartment fuse box protects essential systems such as the engine control module, ignition, charging, and other high-demand components. If a fuse blows repeatedly, there may be an underlying electrical issue that warrants professional inspection.
Fuse diagrams and identification
The cover’s diagram is the quickest reference to identify which fuse protects which circuit. If the label is worn, consult the owner’s manual or Honda support resources for a last-known configuration to avoid replacing the wrong fuse.
Interior cabin fuse box
The interior fuse box in the 2018 Accord is located inside the vehicle, typically behind the left side dash panel near the driver’s knee. Accessing it requires removing a small panel or door. The cover again includes a circuit diagram for quick reference.
Before actions inside the cabin, ensure the vehicle is stationary and the ignition is off.
- Park the car, apply the parking brake, and turn off the ignition.
- From the driver’s seat, locate and remove the small panel or door on the left side of the dash to reveal the fuse box.
- Lift the interior fuse box cover to see the fuse arrangement and chart.
- Remove or replace a blown fuse with one of the same amperage rating, as indicated by the diagram.
- Secure the cover back in place and reinstall the panel when finished.
Cabin fuses typically protect interior electronics such as the audio system, power windows, door locks, interior lighting, and HVAC controls. If a cabin fuse keeps blowing, check for short circuits or faulty components in the affected circuit.
Summary
For a 2018 Honda Accord, you’ll find two primary fuse boxes: one in the engine compartment on the driver’s side and one in the cabin behind the left dash panel. Both have covers with diagrams to guide you in identifying and replacing fuses. Always use the same amperage rating and inspect the surrounding wiring if fuses blow repeatedly. When in doubt, consult the owner’s manual or a qualified technician.