Low Coolant Code
Anyway, if you can't get it to work properly, you can always just unplug the sensor. The light should go off with the sensor unplugged.
These sensors are also prone to contamination. Did you fully flush the collant when you changed the radiator? (Half of the coolant stays inside the engine.) Do you have any additives in the coolant? Are you running a 50/50 mix? (Any deviations could cause problems.)






