My Heater/AC fan runs only on high, no other.

Thanks

Actually, The module is located on the motor side of the fire wall up just below the cowl, behind and under one of the a/c pipes. It took me 2hrs to locate and replace the module thinking that it was accessible from the insider of the dash. One of the contacts in the plug was burned and would not let the connector come apart easily. I finally got it apart and cleaned up the male part of the connector and the blower works ok. I hope it stays that way!