1990 Lincoln Town Car Resistor Pack

Hello -

I think your problem is the Variable Blower Controller/high Blower Relay (VBC). I have attached it's function.

The solid state Variable Blower Controller/high Blower Relay (VBC) converts low current signals from the Automatic Temperature Control (ATC) module to a high current, variable ground feed to the blower motor. The blower motor speed is infinitely variable and is controlled by the ATC control module software. A delay function provides a gradual increase or decrease in the blower motor speed under all conditions. When the ATC control module signals the VBC to maximum blower speed, a relay bypasses the solid state control and provides a direct path to ground for the blower motor.

CAUTION: The system should not be operated with the blower motor disconnected. Damage may occur to the VBC if cooling air is not provided through the evaporator assembly.

I have also attached a couple of troubleshooting checks for you - one is specific to this VBC. I have also attached it's location. . .. . .the red circles.

Hello -

Just as a note - after I had sent you the information I did some other looking. You may have some recalls on your vehicle. The dealer may fix these for free. Please contact the dealer service department, give them the VIN number of your car and have them check on these to see if they apply to you.