Bad temperature sensor, but engine light should be on & it's code should come up.
Why won't the radiator fan start on my 1991 dodge caravan?
What is wrong with your radiator?
On the bottom or side of the radiator.
get a new radiator.
The radiator fan is probably not working.
most are on the bottom left side of the radiator
It is in front of the radiator.
The thermostat on a 1999 Dodge Caravan is under the housing where the upper radiator hose attaches to the engine.
2002 dodge caravan ac is chareged sill not cooling
Could be the fan relay located on the drivers side frame below the battery.
Green
On the radiator side of the engine.