There is a heater blower resistor assy located in the air ducting on the passenger side footwell area look up and you will see the base of the motor assy i think the resistor is screwed in into either the bottom of the duct or into the side of the duct behind the glove box this resistor controls the other 3 speeds of the blower motor if i remember correctly i think the connector has 4 terminals in line
Colin Anderson
November 2004