Windshield Washer Fluid fluid light won't go out.
Had the washers stop working the other day at the tail end of a snowstorm and very cold(5 degrees during the day) weather. I didn't know if the lines froze, the nozzle, etc. I stopped and filled up the reservoir that appeared empty(although no light came on) with -25 Rain-X fluid and everything started working fine again. Next day, the washer fluid light comes on. Now whenever I start the car, the light is out, and about 3 minutes after running the light comes back on even though the reservoir is topped off to within 3 inches of the cap. I'm thinking it might be the sensor, however I have no idea where to look for said sensor to make sure that it's plugged in. I got alot of hard packed slush up in the wheel wells on my snowy drive so it could have knocked the sensor wire off, or damaged the sensor. Anyone else experienced this or have a schematic of the washer fluid reservoir, sensor, and pumps?
ETA--The front and rear washers both work fine.