Last winter my fan locked up and fried, including the pig tale. It was still frying even with ign off. Had to cut it. Got a used fan and a pigtail from JY. Installed and still wont come on. Switched a supposedly good ircm and nothing. I checked the fan with a jumper from battery. low speed worked, high speed did not. So I bought a new fan motor. Wired it in. Will not come on. Tapped the ircm, disconnected the temp sensor and will not come on. Is there anything else I can check? I have a IC fan on a switch, my only option seem to wire a relay into that from the batt and just have it run full time. Car is a 90, auto, minor bolt ons and a chip from Dave. The chip did kick the fan on earlier... Thanks in advance.