Coolant Light on 1994 Oldsmobile 98

I have made sure there is no air in the hose. The radiator and coolant tank fluid is where it is suppose to be. I have no wiring harness in front of the intake manifold. The low coolant light still comes on. Is there any thing that I can do.

Asked by for the 1994 Oldsmobile 98
Hi, sorry to see you didn't get any help with this, did you find a solution? Is there a sensor in the reservoir?
Did the light go out after replacing the sensor?
I've looked at the little info I have on this vehicle and I don't have the wiring schematic for the coolant level light. Without that, I can't do much, do you have a wiring diagram for the car?
I didn't see a sensor in the reservoir. The sensor that I bought and was connected to the radiator.
No the light keeps coming on soon after you start up the car.