2021 Honda Pilot — Fuse Box Diagram & Amperage
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Quick answer
The 2021 Honda Pilot has three fuse box locations:
- Under-hood fuse box: Located in the engine bay on the driver's side.
- Driver's side interior fuse box: Located under the dashboard on the driver's side.
- Passenger's side interior fuse box: Located under the dashboard on the passenger's side.
Under-hood Fuse Box
This fuse box contains fuses and relays for high-current components like the starter, cooling fans, and ABS.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| 1 | 30A | Pink | Main Fan |
| 2 | 40A | Green | Sub Fan |
| 3 | 30A | Pink | Wiper |
| 4 | 30A | Pink | ABS/VSA Motor |
| 5 | 30A | Pink | ABS/VSA F/S |
| 6 | 40A | Green | Power Seat |
| 7 | 40A | Green | Rear Defroster |
| 8 | 40A | Green | Blower |
| 9 | 10A | Red | ACG |
| 10 | 10A | Red | Hazard |
| 11 | 15A | Blue | Horn |
| 12 | 10A | Red | High Beam Headlight (Right) |
| 13 | 10A | Red | High Beam Headlight (Left) |
| 14 | 10A | Red | Low Beam Headlight (Right) |
| 15 | 10A | Red | Low Beam Headlight (Left) |
| 16 | 20A | Yellow | Washer |
| 17 | 15A | Blue | FI Main |
| 18 | 15A | Blue | Ignition Coil |
| 19 | 15A | Blue | DBW |
| 20 | 15A | Blue | Stop |
| 21 | 10A | Red | VBU |
| 22 | 15A | Blue | Fuel Pump |
| 23 | 7.5A | Brown | MG Clutch |
| 24 | 7.5A | Brown | Oil Level |
| 25 | 7.5A | Brown | - |
| 26 | 15A | Blue | - |
| 27 | 30A | Pink | Starter |
| 28 | 30A | Pink | Main |
Relays:
- Main Fan Relay
- Sub Fan Relay
- Wiper Relay
- ABS/VSA Motor Relay
- ABS/VSA F/S Relay
- Power Seat Relay
- Rear Defroster Relay
- Blower Relay
- ACG Relay
- Hazard Relay
- Horn Relay
- High Beam Headlight Relay
- Low Beam Headlight Relay
- Washer Relay
- FI Main Relay
- Ignition Coil Relay
- DBW Relay
- Stop Relay
- Fuel Pump Relay
- MG Clutch Relay
- Starter Relay
Driver's Side Interior Fuse Box
This fuse box is located under the dashboard on the driver's side, near the kick panel. It contains fuses for various interior circuits.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| 1 | 7.5A | Brown | ODS |
| 2 | 10A | Red | SRS |
| 3 | 7.5A | Brown | Meter |
| 4 | 7.5A | Brown | ACC |
| 5 | 7.5A | Brown | LAF |
| 6 | 7.5A | Brown | Fuel Pump |
| 7 | 10A | Red | Right Headlight Low Beam |
| 8 | 10A | Red | Left Headlight Low Beam |
| 9 | 20A | Yellow | Driver Power Window |
| 10 | 10A | Red | - |
| 11 | 20A | Yellow | Sunroof |
| 12 | 7.5A | Brown | - |
| 13 | 7.5A | Brown | - |
| 14 | 20A | Yellow | - |
| 15 | 7.5A | Brown | - |
| 16 | 7.5A | Brown | - |
| 17 | 10A | Red | - |
| 18 | 7.5A | Brown | - |
| 19 | 7.5A | Brown | - |
| 20 | 20A | Yellow | - |
| 21 | 7.5A | Brown | - |
| 22 | 7.5A | Brown | - |
| 23 | 7.5A | Brown | - |
| 24 | 7.5A | Brown | - |
| 25 | 10A | Red | - |
| 26 | 10A | Red | - |
| 27 | 7.5A | Brown | - |
| 28 | 7.5A | Brown | - |
| 29 | 7.5A | Brown | - |
| 30 | 7.5A | Brown | - |
| 31 | 7.5A | Brown | - |
| 32 | 7.5A | Brown | - |
| 33 | 7.5A | Brown | - |
| 34 | 7.5A | Brown | - |
| 35 | 7.5A | Brown | - |
| 36 | 10A | Red | - |
| 37 | 20A | Yellow | Door Lock |
| 38 | 20A | Yellow | - |
| 39 | 7.5A | Brown | - |
| 40 | 10A | Red | - |
| 41 | 15A | Blue | - |
| 42 | 10A | Red | - |
| 43 | 7.5A | Brown | - |
| 44 | 10A | Red | - |
| 45 | 10A | Red | - |
| 46 | 10A | Red | - |
| 47 | 10A | Red | - |
Passenger's Side Interior Fuse Box
This fuse box is located under the dashboard on the passenger's side.
| Fuse # | Amp | Color | Circuit / Component Protected |
|---|---|---|---|
| 1 | 20A | Yellow | ACC Socket |
| 2 | 10A | Red | - |
| 3 | 10A | Red | - |
| 4 | 20A | Yellow | FR FOG |
| 5 | 10A | Red | - |
| 6 | 10A | Red | - |
| 7 | 20A | Yellow | - |
| 8 | 10A | Red | - |
| 9 | 10A | Red | - |
| 10 | 10A | Red | - |
| 11 | 10A | Red | - |
| 12 | 10A | Red | - |
| 13 | 10A | Red | - |
| 14 | 10A | Red | - |
| 15 | 10A | Red | - |
| 16 | 10A | Red | - |
| 17 | 10A | Red | - |
| 18 | 10A | Red | - |
| 19 | 10A | Red | - |
| 20 | 10A | Red | - |
| 21 | 10A | Red | - |
| 22 | 10A | Red | - |
| 23 | 10A | Red | - |
| 24 | 10A | Red | - |
| 25 | 10A | Red | - |
Note: Fuse box layouts and protected circuits can vary based on your vehicle's trim level and options. Always verify the fuse locations and ratings with the diagram printed on the fuse box lid.
How to test a fuse
- Turn off the ignition.
- Locate the fuse box and remove the cover.
- Identify the suspect fuse.
- Remove the fuse using a fuse puller.
- Visually inspect the fuse. A blown fuse will have a broken filament.
- If the filament is broken, replace the fuse with a new one of the same amperage rating.
Common blown fuses on this vehicle
- Accessory Power Socket (Cigar Lighter): This fuse often blows due to faulty phone chargers or other devices plugged into the power outlets. Check the device for damage before replacing the fuse.
- Low Beam Headlights: If a headlight is out, check the bulb first. If the bulb is good, the fuse may have blown. This can be caused by a voltage spike or a problem with the headlight wiring.
- Blower Motor: If the fan for your A/C and heat isn't working, the blower motor fuse is a likely culprit. This can be caused by a failing blower motor or an obstruction in the fan.
Find a trusted shop on Repairius.
Before you pull a fuse on the 2021 Honda Pilot
- Use the label printed on the panel cover or the owner's manual for your exact build. Layouts change with options, model year and build date, so a chart for another truck can be wrong.
- Replace a blown fuse only with the same amp rating. A larger fuse can let wiring overheat.
- A fuse that blows again right away means a short or failing component downstream. Find the cause before replacing it again.
- A good fuse doesn't prove the circuit works — relays, grounds and connectors fail too.
- Disconnect the battery before working near high-current fuses or cables.
Learn more: How fuses, relays and truck electrical systems work
More specs for the 2021 Honda Pilot
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2021 Honda Pilot Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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