It has moved from year to year as it is prone to overheating (which is probably why you're looking for it). On my van which is also a 2000, I found it near the air intake under the driver's headlamp. To access, you must remove the air intake assembly and the driver's side headlamp assembly. There are three nuts on the back of the headlamp assembly, and one bolt on the top. Removing the battery & tray helps, but is not necessary. There is another piece of air intake that was in the way on my van which can be removed once the headlamp comes out. the radiator fan relay is riveted to the subframe and should be visible once the headlamp and air intake are completely removed. Drilling out the rivets is about impossible, so I "removed" them with a hammer.
the connector is tricky also. There is a red lock that tends to stick, but must be slid out before you can remove the connector. It only needs to slide out part way.
Other locations: driver's side frame rail under battery, subframe by lower radiator mount.
Yes, it is located on the passenger side of the radiator.
What is wrong with your radiator?
Why won't the radiator fan start on my 1991 dodge caravan?
under the housing where the upper radiator hose hooks to the engine
under the housing where the upper radiator hose hooks to the engine
On the bottom or side of the radiator.
under an aluminum housing at the engine end of the upper radiator hose
UNder the air cleaner on the driver side "frame".
get a new radiator.
Do you mean the ambient (outside) temperature sensor? It is usually located between the grill and the radiator, near the middle and at the bottom of the radiator.
Should be in a removable housing at the engine end of the upper radiator hose
It is on the front (radiator) side of the of the engine. Just above the oil pan.