I saw a solution for this posted somewhere, that there's a ceramic resistor card somewhere on the pass firewall for this. I had the whole pass under-dash off yesterday, but I can't find this anywhere.
Afterward, I looked in the power distribution fuse-block-thingy under the hood, and I notice that it looks like there are 2 "blower relays" in there... Is this where the problem could be, one of the relays is bad? Is it possible to test them? I already noticed that it is impossible to reverse the relays, that was my first plan at diagnosis...
Thanks,
Tom