Album Index for Album 0029: Parallel Fan Wiring

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This is the AC fan's plug.  I tapped in here. You DO leave it plugged in, both for the AC to still turn it on and for the ground.
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Here's the hot wire on the motor fan side.
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I slit it with a single edge razor blade...BE CAREFUL!
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The tap is made...soldered of course.  You only need the hot wire.
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I put a connector at the other end, just where I hooked up to the AC side.  This is necessary for removing the fans to work on the front of the engine.
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Crimping is great.  It holds the wire so you can solder it! ;-)
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There, ALL DONE! [Important Note:  I did NOT reconnect the AC hotwire...if you do it will ground out when the AC is not on.  This is a bad thing! With this wiring the secondary fan always comes on triggered by coolant temp.]
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Test the fans by jumping GND and TFA in the diagnostic box.  They should BOTH come on.
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BTW here is a great place to store your paper clip.  You know you've run into a real miataphile when they see it under the hood and go, "Hey that's a great place to store that jumper!" ;-)