I just looked to double check, and yeah there is only one plug, which
is for the fan, but there must be something in there that reads the
temp gauge, because otherwise it wouldn't know what the radiator was
I am not an expert nevertheless, but I did replace mine, and I haven't
been having any problems. My car used to overheat daily, until I
changed it. It's so hot here, cars can overheat easily.
I just looked in my book, and it appears that the sensor is somewhere
right located near the waterpump or around that area.