98 Civic Wipers Wont Stop

1998 Civic EX, 147,000 miles. 1.6 litre 4 cylinder engine.

Wipers start on mid level when car is started. I can't switch to off or intermittent but can switch to high.

I tried swapping the hand switch but that didn't fix it. I then replaced the wiper motor but that didn't fix it. Finally I replaced the wiper control module attached to the back of the under dash fuse panel. Still no fix. I don't know what else is left to check.

When I click the handswitch from "off" to intermittent and then to mid level I can hear a faint click from around the fuse panel...almost like the sound of a turn signal relay but I can't pinpoint it.

Could it be a bad ground? Everything else in the car is working fine.

Thanks!
sean