My mail bounced, here is what I wrote (no diagram)
"The attached .gif file is for the V6 fan circuit, the Zetec just has one fan, otherwise the circuit is the same. The diagram lacks relay pin numbers. Remove the black relay to test the high speed circuit, the green one for the low speed circuit (the owner's manual shows these). Jumping pins 3 and 5 in the desired socket, with car OFF, will make the motor run at the appropriate speed. The numbers of the socket pins are on the relay body. You can check with an ohmmeter: pin 3 will have 12 volts, pin 5 will have about:[1 ohm low speed, .5 ohm high speed] to battery ground. That checks motor circuit, without jumpering.
Good luck with your repair."
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