The blower motor control processor module is powered by the 30A HVAC blower fuse (hot at all times). It then runs the blower motor according to the speed control signal from the HVAC control module. The HVAC control module (control head, if you will) is powered by the 10A A/C Cruise fuse (hot with key on) and 10A DIC/RKE fuse (hot at all times). Thus, if the blower motor continues to run with the HVAC control module powered down (both said fuses removed), the blower motor control processor module is probably at fault.
Last edited by EinST; 07-16-2011 at 03:31 PM.