Thanks, again, Arthur. Unfortunately, I have to go out of town this afternoon for several days, so will have to do some more troubleshooting when I get back. I just got back from a test drive around town with the A/C on to try and drive the temps up. It's a cool day here today (upper 70's) and the temp didn't go above 80C. I checked the fans at engine idle with A/C on and they were both on at low speed...yea! Would this indicate that the resistor is functioning properly? However, still unable to get fans to high speed by disconnecting CTS.