Located on what's called water crossover which attaches to block just behind the two big hoses leaving the water pump. Terminal points towards driver's side. Connector should have w/r wire.

BTW checking the manual my recollection was incorrect; low resistance equals high temp.

98 Mystique LS v6 atx 110,000km
97 Contour LX v6 atx 125,000km
stock CD on LS, cass on LX
spoiler, tinted windows on LS only
4 wheel discs on LX only
All other available options on both