As many of you are aware, the relays in the 2nd gen wiper switch are subject to failure over time. I have posted repair instructions on our web site as a service to fellow RX-7 enthusiasts. These instructions were derived from information originally posted on Icemark's web site. That web site is no longer available, so you may want to save a copy of these instructions on your computer for future reference. I will leave them up for at least a few weeks.
http://rotarydiagnostics.com/WiperRepair.htm