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Fan harness wire identification

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Old Feb 25, 2015 | 10:05 PM
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Default Fan harness wire identification

I'm looking to find out which wires in the electric fan harness do what. Which colors are powers and which colors are ground.
Looks like one harness is black/white and the other is grey/blue. I can't read wiring schematics to save my life. Lol



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Old Feb 25, 2015 | 10:35 PM
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Ideally I'd like to use the power wire of the harness to trigger the relay to activate the fans thru the ecm so they turn on when they are supposed to via the tune
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Old Feb 26, 2015 | 01:25 PM
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^^^^^^^^^^^^^^^^
Yea, me and my buddy attempted to obtain the info I'm looking for without any luck. He's an electrician and has no DC experience. Can anybody identify what those (4) wires do ?

Are my objectives even obtainable ?

Last edited by junk c5; Feb 26, 2015 at 01:34 PM.
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Old Feb 27, 2015 | 11:25 AM
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The tune should have already set the turn on temps if they actually did that.

If you want me to walk you thru the design and how the fans are wired to work using the above OEM design you can PM me with your phone number.

We can discuss what you want to do and how the fans are working now. You may even have a bad relay affecting their function at this time.

Mr. Sam
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Old Feb 27, 2015 | 06:57 PM
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Black is ground.
Blue is power.
White can be either 6V or 12V.
Grey can be either 6V or ground.
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Old Feb 27, 2015 | 09:58 PM
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Originally Posted by lionelhutz
Black is ground.
Blue is power.
White can be either 6V or 12V.
Grey can be either 6V or ground.
Thx
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