The fuse boxes are located in two places: a main under-hood (engine compartment) box and an interior box under the driver's side dash.
For this model year, Honda typically provides two primary fuse boxes: one in the engine bay and one inside the cabin. Accessing them requires removing protective covers and consulting the diagram printed on the lid or the owner’s manual for exact fuse assignments.
Engine compartment fuse box (under the hood)
The under-hood fuse box in the 2016 Odyssey is mounted in the engine bay on the side of the engine compartment. It is covered by a black plastic cap, which can be lifted to access the fuses. The lid contains a diagram that identifies each fuse by number and circuit, so you can locate the fuse you need quickly.
Common instructions for accessing and using this box:
- Park safely, turn off the engine, and engage the parking brake before opening the hood.
- Release the latch and lift the fuse box cover to reveal the fuses and their numbers.
- Use the diagram on the underside of the lid to identify the fuse you need and remove it with the proper fuse puller or insulated pliers.
- Replace a blown fuse with one of the same amperage rating; never substitute a higher-rating fuse to bypass a fault.
What this box generally powers includes critical engine and electrical systems such as the ECM/PCM, ignition, fuel system, charging system, cooling fans, headlights, and several body control circuits. Always consult the diagram for your exact model and trim to confirm.
Examples of fuses you’ll typically find in the engine compartment box
Note that exact fuse numbers and assignments can vary by trim and production batch. Refer to the label on the lid for precise mappings.
- Engine control module (ECM/PCM) and related power circuits
- Ignition and start circuits
- Fuel system and injector circuits
- Charging system (alternator) and charging/ABS power feeds
- Cooling fans and radiator fan control
- Headlights, auxiliary lighting, and horn circuits
- A/C compressor and HVAC control circuits
Concluding: When you’re dealing with electrical issues that appear while the car is running or under load, the engine compartment fuse box is often the first place to check. Always replace only with the same amperage rating and consult the lid diagram for exact circuits.
Interior fuse box (under-dash, driver’s side)
The interior fuse box is mounted under the dashboard on the driver’s side, usually behind a removable cover near the knee area. It’s accessible without opening the hood and has its own diagram inside or on the cover to help identify each fuse’s function.
Accessing and using the interior box follows similar steps to the engine bay box:
- Turn off the vehicle and remove the ignition key before handling fuses.
- Remove the interior cover to reveal the fuse panel and the fuse map.
- Use a fuse puller or insulated tweezers to extract the suspected blown fuse.
- Replace with a fuse of the same amperage rating and reinstall the cover securely.
Inside, the interior box typically controls circuits related to passenger compartment functionality and convenience features, such as power windows, door locks, interior lighting, infotainment, HVAC controls, and some power outlets. Some trims may also include fuses for the rear seat or auxiliary accessories within this box.
Examples of fuses you’ll typically find in the interior box
As with the engine bay box, exact fuse numbers and circuits depend on trim level and production date. The following are common categories found in many Odysseys:
- Instrument cluster and dashboard electronics
- Radio, infotainment, and media power
- HVAC blower motor and climate control circuits
- Power windows, door locks, and mirrors
- Rear entertainment or power outlets (where equipped)
- Interior courtesy lights and sunroof (if equipped)
Concluding: If interior electrical issues appear only when a specific feature is used (like the radio or climate control), the interior fuse box is the most likely culprit. Check the fuse map and replace any blown fuses with matching ratings.
Summary
For a 2016 Honda Odyssey, there are two primary fuse boxes: one in the engine compartment under the hood on the driver’s side, and one inside the cabin under the driver’s dash. Each box has a diagram indicating fuse numbers and circuits. If you experience electrical problems, start by inspecting the relevant fuse in the appropriate box and replace any blown fuses with the correct amperage rating. Always refer to the lid diagrams or the owner’s manual for exact mappings to your specific vehicle configuration.