Check for power and ground at the blower connector, the two pin one that is purple and gray(or black). If there is no power there, check power and ground in to the blower speed processor. That is the larger connector with a large red and black wire, the third wire is 5 volt from the processor to the control head. If there is power at the processor in, replace the processor. If there is power and ground at the blower connector, replace the blower.
Wednesday, July 14th, 2010 AT 9:58 PM