I have a 1993 Eurovan and the cooling fan is on all the time the key is on. on 1993 Volkswagen EuroVan

It sounds like the fan is on high speed too.I disconnected the thermo switch in the radiator no change.

Asked by for the 1993 Volkswagen EuroVan
We have worked on many Eurovans. It sounds like a relay may be failed in the "on" position.
I have already swapped out the relay and there is no difference
If the relay is removed, does it still run ? If so, the supply wirs is likely shorted to a power source.
NO-the fan stops when you pull the relay.