Frank12

turning and always connected,
without the ignition key running and does not stop.
Necessary disconnect the connector for stop working.

The A/C system works perfectly.
No error code.

What can cause non-stop fan ?
That circuit is what controls it ?

ZR-71

I looked in my 1991 electrical service manual and I see there are two relays for the fan blower motor (low and high) and a blower switch. I'm thinking your problem is one of those, my guess is a relay is stuck in the "on" position.
On one of my other non corvette cars, I have to bang my hand on the dashboard where the start relay is because it is stuck so I can start the car. I'm changing the relay this weekend.

Goldcylon

Replace the blower control module