Sounds like either a defective relay or relay wired incorrectly switch the wires over.sounds like wires are on backwards
On the auto temp unit it is called a blower power module.
blower motor module
Something called a blower control module takes the place and is found in the hole where you would find a blower resistor, so there isn't a blower resistor in that vehicle. As far as the blower control module is concerned, the module is serviced as a unit. No part can be fixed or replaced. This is not to be confused with the control head in the dash. The blower control module is held into the heater box with two 8mm screws outside the firewall under the hood, where you would normally find the blower resistor pack.
Open hood . Disconnect blower module located near blower fan. Disconnect, if blower shuts off, repalce module
i think what you are refering to is a blower staying on all the time, if so the blower motor has shorted the control module, you need to replace the blower motor and control module.
sounds like a defective blower module
There is none - usually it is the module in the top of the heater / blower box (resistor module) that is the problem.
The 2000 Chevrolet Corvette blower motor control module can be found behind the passenger side dashboard. You will need to remove the dashboard in order to access the module.
Check the control module, the resistor, etc......
The front blower motor power module is under the dash on the passenger side. It bolts to the bottom of the HVAC housing.
Behind glove-box, behind engine control module
No. An AC/heater control module is a computer that controls and automates the operation of the heating, ventilation, and air conditioning systems (HVAC).The blower resistor enables the blower motor to change the speed of the fan.