What would cause honda odyssey not starting no clicking noise?

Clicking noises in the Honda Odyssey are caused by faulty relays and indicate the battery is on an exceptionally low charge. This phenomenon is usually accompanied by a no-start. If the key is turned in the ignition and the engine cranks, but is unable to turn over, a faulty fuel pump may be the culprit. If the motor isn't getting enough gas, the fuel pump may be causing a no-start, or any loose lines or connections within the vehicle's fuel delivery system. The car's charging system may be compromised. If the battery is discharged, it can't power the starter and drivers won't be able to fire the engine. It could be bad or the alternator could be failing. As an alternator becomes corroded or ages, it will not supply the battery with enough amperage to recharge.