Found this on Ford OASIS....
Quote:TSB 04-15-2 Loss of Intermittent Wiper or Wiper Park Function.
2002 - 2005 Focus
Warranty Status: Eligible under provisions of new vehicle limited warranty coverage.
Part Number: 1S4Z-14N089-AA
Part Name: Wiper Relay'
Old enough to know me limit, yet young enough to exceed it.