[ACHiPo]

Pat,
This looks great! Talking to Bob I checked the ignition light for short to ground, but it's good. He suggested I try to duplicate a symptom I noticed Friday next--with the fan unplugged and car running, the ammeter swung positive when the fan relay was energized.

After that I was going to start checking for shorts to ground at the fuse box, then into the loom at this point, but will give your idea a try first. It will likely be tomorrow evening before I get a chance.

Evan