BAD FUSE SOUNDS NUTS BUT IT IS?
Climate control blower motor was the fix. The part cost 441 dollars.
If the fan runs with the HVAC panel shut off, the blower resistor power module has failed.
The most common problem when a car's heater fan doesn't shut off when the car is shut off is that the resistor on the blower motor has gone bad. The fuse that powers the resistor should also be checked.
Have your blower motor resistor or blower motor checked out
when my car did this it was a blown fuse
The blower control module is defective.
faulty blower module. Under hood not far from blower motor
Generally automotive blower motors are designed to run on the lowest speed even though the heater is turned off. The purpose is to circulate fresh air into the cab.
Ifit has the c68 option (auto air) check the blower control module under the hood
Blower resistor has failed. It is located behind the glove box.
The blower on a 2002 Nissan Pathfinder won't turn off if the switch is stuck in the on position or the relay is defective. Removing the blower fuse will cause the fan to turn off.