2002 Odyssey Remote Key Horn Problem

I have a 2002 Honda Odyssey and I have recently started having a problem with my remote key. When you double hit the lock door button on the remote the horn no longer honks? I know it is not a big deal but I always used to use it to double check my doors are locked or even to help find my van in a parking lot. Everything else on the remote works. Anyone else had or heard of this problem?

Thanks

I believe the horn will not honk if the system thinks one of the doors or the hood is open. Let me check my Accord manual when I get home and see if there are other reasons for the horn not working....Glen