I forgot what controls intermittent wipers
 

On my 84SD the intermittent wiper quit working. I remember the solution previously was to change something in or near the fuse box but have forgotten what. The fuses are all good and allowing current through both sides of the copper contacts.

Intermittant WSW
 

There's a relay up under the dash behind the gauge binnacle ~ it has to come out (or mostly out) to reach it .