The secondary under-hood fuse box is typically located on the passenger side of the engine compartment, behind a separate black cover near the firewall (often near the windshield washer reservoir). It is distinct from the primary under-hood fuse box and carries its own fuse diagram.
In more detail, Honda’s 2010 Odyssey uses two engine-compartment fuse centers. The main box sits toward the driver’s side, while the secondary, usually smaller, box sits on the opposite side of the engine bay near the firewall. Access involves removing the lid of the secondary box to view the fuses and the diagram printed on the inside of the cover. Since layouts can vary slightly by trim and market, always consult the lid diagram or the owner’s manual for your specific vehicle.
Location and access
To locate it, open the hood and inspect the passenger-side inner fender area or near the firewall. The secondary box appears as a compact black plastic container with its own removable cover. Lift or unclasp the lid to reveal the fuse array and a diagram showing which fuse protects which circuit. If you have trouble finding it, the diagram on the inside of the lid or the vehicle’s manual will pinpoint the exact position for your VIN and trim level.
How to identify the box and its fuses
Look for a label on the underside of the lid that lists fuse numbers, amperage, and circuits. The fuses themselves are blade-type (ATO) fuses, and the diagram will indicate which ones correspond to accessories or systems you might be troubleshooting.
Tips for safe handling
When inspecting or replacing fuses, use the fuse puller provided in the box or a non-conductive tool to remove fuses. Replace only with the same amperage rating and ensure the lid is securely reattached after service. If you’re unsure about a fuse’s function, refer to the diagram on the lid or consult a service manual.
What to do if you can’t locate it
If you still can’t find the secondary fuse box, consult your owner’s manual’s fuse section or a dealership. The diagram printed on the secondary box lid also serves as a precise guide for your specific vehicle. In some cases, certain trim levels or markets may route circuits differently, so VIN-specific documentation is the most reliable reference.
Summary
For a 2010 Honda Odyssey, the secondary under-hood fuse box is generally situated on the passenger side of the engine compartment, behind a separate cover near the firewall and often close to the windshield washer reservoir. Access it by removing the lid to view the fuse diagram and use the same amperage when replacing fuses. Always check the lid diagram or the owner’s manual for model-specific details and locations.