I pulled the motor housing open yesterday. I turned on power to the blower (key in run position, resistor/switch on high, and defrost button pushed). A multimeter showed no power getting to motor.

I then ran power directly from the battery to the motor. The motor worked just as it should.

I have power on both sides of both 30A fuses in the black box located in front of the main fuse box (I don't know which one of those two is for the blower, but both are good).

So my problem is somewhere between the fuse and the motor. I was going to pull out the resistor yesterday, but realized I have no idea how to check it (though I did, when installing a new radio, switch it out with the one from my parts car, and it made no difference).

Where is the likely fault? If it is the resistor/switch, how do I test it?

Is there a relay involved in providing power to the motor?

Any other thoughts/ideas?

Thanks.
Brett