Hi all, i have a fault that shows on my obd tester wich is about the coolant sensor. I tested it in cold and hot water and even on the engine and the ohms seem to decrease and increase significantly. This sensor shows the temperature on my dashboard and lights the Stop sign when water is too hot. Question is, is this sensor controlling the cooling fan aswell or is there another one that is broken and messes with my tester? I have a 2004 Peugeot 206 1.2 petrol. Thank you.