2000 caddilac stsJuly 17, 2014where is the wiper motor relay located? Keywords:STSwiper motor relay 1 thought on “2000 caddilac sts” Freeautomechanic July 17, 2014 at 10:59 am There is no separate relay. It is built internally inside the wiper motor itself. It only have two fuses in the wiper motor circuit. a 15A accy fuse and a 30A WSW both located in the underhood fuse block. Comments are closed.