Thanx guys for the info. The PN junction of the diode turned out to be okay. The Anode actually broke off and the cathode was barely hanging on. A little solder and some patience and we are back in business.
Thanx for the information. Much appreciated. I was able to locate the diode and it has failed open. Does anybody know where to purchase a fan diode from? They want $640 for a complete harness. I diode is worth about $5.