Have you replaced your air filter lately? If not, try that, reset the computer by unplugging the battery and see if it clears the code.
sensor is located in the ignition housing itself and can not be serviced seperatly from the housing, it must be replaced
It has two. They must be replaced, not cleaned.
There is no camshaft sensor on the engine. Your reading a generic code.
You need to get the temperature sensor repaired or, more likely, replaced.
It's not adjustable on any sl series. if it's reading is off it needs to be replaced. 2000-2002 had a problem where they would read 1-2% all the time.
crank sensor
The stock oil pressure sensor on a 97 Saturn can be replaced with an oil pressure gauge for poundage info by first unscrewing the existing sensor. The new sensor can then be screwed into place and wiring ran to a suitable pressure gauge.
If you are reading a code with the description "ambient temp. sensor open" that means that the sensor or the wiring to the sensor is open or broken. The sensor will have to be replaced or the wiring to the sensor repaired. Have it troubleshot prior to just throwing parts at it.
Be careful there is a temperature coolant switch mounted next to the thermostat housing. I thought this was the sensor and replaced it by mistake. There is another sensor.
bad fan or bad fan relay
Fill your coolant to the level that it should be at. If it still comes on when the coolant is at its proper area, then it is an improper sensor. You will need to have it replaced immediately to reset the sensor.
i am looking were the cooled start sensor is on a 94 Saturn is at