junk c5

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

junk c5

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

junk c5

^^^^^^^^^^^^^^^^
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 ?

dadaroo

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

lionelhutz

Black is ground.
Blue is power.
White can be either 6V or 12V.
Grey can be either 6V or ground.

junk c5

Thx