1996 SC Low coolant light

I cannot get rid of the flashing low coolant light. I have flushed the radiator amd all hoses, refilled etc. The radiator fan does not come on (fuse is OK) and the temp gauge will climb when idleing. Is this an Engine Temp Sensor problem?

i would say 9 out of 10 odds it is. do you need the how-to link?