spiderpigcity Posted August 10, 2011 Share Posted August 10, 2011 does pin 22a coil4 on AEM give a 12V+ when acitvated, or is it grounded. I need to activate a relay coil from it. Quote Link to comment Share on other sites More sharing options...
Muffleman Posted August 12, 2011 Share Posted August 12, 2011 Coil outputs are switched to ground, not a problem just run 12v to one side of the relay and switch to earth using the coil output. ECUs dont generally output 12v, if it does it's very low amperage. Quote Link to comment Share on other sites More sharing options...
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