[Mister Nobody]

Hey everyone. Coming back to confirm that I solved this issue. As it turns out there was a loose connection at the clip that plugs into the back of the climate control module. Actually, two loose connections: the red and blue wires on the top row of the clip on the passenger side. In order to fix this you have to remove the wires from the clip. Someone else explains this process here: Nissan 370Z Forum - View Single Post - DIY - Nav System Conversion. Note that I used a regular, but rather fine, sewing pin to press down on the release tab to get the wires out. I did not hammer anything as suggested on that link. Once I got the two wires out, I first tested them on the pins directly to see if they were indeed loose. They were. Then I used my fingernail to push up a little metal tab at the bottom of the metal female connection at the end of the wire (you'll see it) and also very gently pinched it tighter (side-to-side) with needle nose pliers. I reinserted the wires into the clip and everything works fine. Now with that done, a new blower motor, and a new resistor (or whatever it is), everything works as it should. The motor was squealing anyway - so needed to be changed. Resistor... I don't know. Maybe the sticky, squealing fan did something (heated up the wire?) to cause the connections to become loose or maybe they are unrelated. I have no idea. Anyway, it's done and with all the parts I am probably into it for about $80. Not terrible. Just tedious. Thanks for the support and good luck with any future projects.