[jdkskyking]

Please chime in if you disagree with my initial assessment:

First pass:
Connector problem.
Corrosion with spade connection and wire. 

Resolution:
Verify motor amperage requirements
Verify Proper wire size
Utilize WAGO fasteners for connections. 
Secure wires and connectors to minimize movement during travel. 
Incorporate motor fuse into system, in an accessible location. 
Utilize dielectric grease on all connection associated with the dash air system where possible.