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Old 09-11-2014, 10:55 PM   #11
boostedc10
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Join Date: Oct 2012
Location: Detroit
Posts: 748
Re: Electric Fan Help

Jsett by looking at your drawing you need both terminal 85's of your relays controlled by pin 42 of the ecm. This will make both of them come on at high speed. Crash's diagram is set up to run both high and low speed fan modes in which you would have to add a relay. Based on your drawing I am assuming you are only looking for one mode?
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