2022 Honda Civic Fuse Box Diagram

Quick Answer

Your 2022 Honda Civic has two primary fuse box locations:

• Under-Hood Fuse Box: Located in the engine bay, near the battery on the driver's side.
• Interior Fuse Box: Located under the driver's side of the dashboard, near the kick panel.

There is no fuse box located in the trunk or cargo area of this vehicle.

Under-Hood Fuse Box Diagram

The under-hood fuse and relay box contains the higher amperage fuses and relays that control major systems like the engine, cooling fans, and charging system. To access it, open the hood and locate the black plastic box on the driver's side of the engine compartment.

Note: Your vehicle's specific fuse layout may vary slightly based on trim level (LX, Sport, EX, Touring, Si). Always confirm fuse locations and ratings with the diagram printed on the inside of the fuse box lid.

Relay Locations (Under-Hood)

• R1: Starter Relay
• R2: PGM-FI Main Relay (Fuel & Ignition)
• R3: A/C Clutch Relay
• R4: Horn Relay
• R5: Main Fan Relay
• R6: Sub Fan Relay

Interior Fuse Box Diagram (Driver's Kick Panel)

The interior fuse box handles most of the fuses for cabin electronics, safety systems, and accessories. It is located under the dashboard on the driver's side, typically high up against the side wall. You may need a flashlight to see it clearly.

How to Test a Fuse

Visually inspecting a fuse is the quickest way to check it. A good fuse has an unbroken, continuous filament wire running through its center. A blown or "bad" fuse will have a broken or melted filament.

1. Turn the vehicle off.
2. Locate the suspect fuse using the diagram on the fuse box lid.
3. Use a fuse puller (often included in the fuse box) or a pair of needle-nose pliers to gently remove the fuse.
4. Hold the fuse up to the light and look at the metal strip inside. If it's broken, the fuse is blown and needs to be replaced.
5. Replace the blown fuse with a new one of the exact same amperage rating. Using a higher-rated fuse can cause a fire, while a lower-rated one will blow prematurely.

For a more definitive test, you can use a multimeter set to continuity or resistance (Ohms). A good fuse will show continuity (or near-zero resistance). A bad fuse will show no continuity (infinite resistance).

Common Blown Fuses on This Vehicle

• Fuse #17 (Interior): 12V Power Outlet / Cigar Lighter. This is one of the most common fuses to blow. It often happens when a faulty phone charger or other accessory is plugged in, or if a metal object like a coin falls into the socket. If this fuse blows, first check the socket for any foreign debris before replacing the fuse.

• Fuse #18 (Interior): Audio / Radio. If your infotainment screen suddenly goes black and the radio won't turn on, this fuse is the first place to look. It can sometimes blow from voltage spikes, but if it blows repeatedly, there may be an issue with the head unit or its wiring.

• Fuse #7 (Under-Hood): Blower Motor. If your climate control fan stops working on all speeds, the blower motor fuse is a likely culprit. If the fuse is good, the next item to check is the blower motor resistor, followed by the blower motor itself.

• Fuses #15 & #16 (Under-Hood): Low Beam Headlights. A single headlight going out is usually just a bad bulb. If both low beams stop working at the same time, check these fuses first before assuming both bulbs failed simultaneously. The same logic applies to the high beam fuses (#11 & #12).

If you've checked your fuses and are still experiencing electrical problems, it may be time for a professional diagnosis. Find a trusted shop on Repairius.