Quote:
Originally Posted by jackyl9999
My harness has a relay for the fan, but it has no wire for the power supply. I have a jeep electric fan. It uses a purple and a black wire. What would be the best way to wire this fan to my ECM/harness?
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Your picture isn't very clear. If your harness has a fan relay, one of the 4 wires should be an output from the relay that you should connect to the purple wire on your fan and the black wire from the fan should go to ground.