engine dying due to electric fan

thanks DesertRat, did check the routing, and everything is as shown in diagram. but, the 85 (blue) which is designated '12 volt power source' is hooked into the back of the ignition switch. I'm wondering if there is a better place for this, or if it wouldn't matter because of the draw from the fan itself on the battery/alternator?
Yeah it should be good there. Next thing would be the voltage regulator, may be sensing or not the additional load when the relay closes.