You can check the cooling fan relay under the hood in the junction box but it would be a lot easier to just scan the vehicles computer......
R134a
Engine coolant temperature switch/sensor
Engine Coolant Temperature Sensor.
on the right side of the engine
probably just replace the coolant sensor
The radiator on a 1995 Saturn is flushed by draining the coolant, refilling the engine with water, and adding a flush. It is allowed to circulate and drain before refilling with coolant.
Low engine coolant
Start by replacing the Engine Coolant Temperature Sensor
fill the coolant reserve and the light should go out
Dexcool, I just had to add coolant (reservoir was bone dry!) to a 2007 Aura
The 1999 Saturn engine uses dexcool type coolant. This coolant is different form other types and cannot me mixed with another type.
Should be in a removable housing at the engine end of the upper radiator hose