I've got a weird problem with my key-in reminder circuit on my 1995 Accord EX-L (V6). I recently have had very consistent issues with the key-in beeper, which starts beeping after the driver's door is open, regardless if the key is removed (so, every time I open my driver's door to get in, it starts beeping, keeps beeping when I insert the key, and stops when I shut the door.) There have been a few occasions, however, when the beeping becomes intermittent on its own, and a few rare occasions when it hasn't been beeping.

I used those rare opportunities to turn on the headlights with my driver door open, to hear the classic two-tone Honda headlight chime. But, these instances when I turn the headlights on, sometimes it will begin beeping the quadruple-beeping tone, as though my key were in the ignition, and sometimes the two-tone headlight chime. Because of this, it makes me think that the problem is not the ignition switch (which has been previously replaced, but not because of this) but rather the ICU, where the beeper and circuitry are housed.

Does anyone else have this issue, or some suggestions? Thanks.