Thanks, Steve and JC (?),

I will verify the circuit is good up to the fan by shorting out the leads to the switch. This circuit not functioning would answer a longstanding mystery on why the car could run hot, only with the a/c on, when the cooling system has been fully reconditioned with new w/p, radiator, hoses, etc....

I'll let you know what I find out.

someguyfromMaryland