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fan harness install

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Old 12-21-2009, 09:50 PM
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Default fan harness install

it has been some time since i have done anything with the truck. But years ago I bought everything i needed to do the ls1 fan install. I even made the needed brackets and what not. I got a harness from white1. since it is going to be almost free for me to do it now, i thought i would go ahead and do it. I need some help trying to figure out where to hook of these wires. These are the instructions I got:
[QUOTE]The large ring terminal is a 12v+ source. The smaller is a ground, the green wire with no terminal on it goes to the DARD Green wire located in the harness that runs by the aux batt box (the red box by the alt.) for the A/C. And the one with the PCM pin goes to pin #42 on the Blue PCM connector./QUOTE]
anyone have pictures of where the #42 is and what the DARD or maybe DARK green wire is.

Also where can i get bosch 5 pin style relays?
Old 12-21-2009, 10:00 PM
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A little off topic but do you have any pics of the brackets you made and maybe dimensions? Will be doing my swap in the spring hopefully.
Old 12-21-2009, 10:03 PM
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It's the dark green wire. I tapped the light green and green w/white stripe before finally getting it right.
Old 12-22-2009, 03:48 PM
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Originally Posted by GMCtrk
It's the dark green wire. I tapped the light green and green w/white stripe before finally getting it right.
ok, the harness had a dark green wire so i guess they go together. is the green wire coming out of the harness going to the computer?

as far as the brackets are concerned, I had been working on the water pump, with every thing out i just put the fans up there, measured from hole to hole, and added a little extra, and cut the aluminum flat bar i got from home depot
Old 12-22-2009, 03:51 PM
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yeah the brackets are easy. The green wire goes to the ac compressor i believe
Old 12-22-2009, 04:55 PM
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Ok cool, thanks! I knew one of those useless home centers had to have something like that.
Old 12-25-2009, 10:46 PM
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Originally Posted by GMCtrk
yeah the brackets are easy. The green wire goes to the ac compressor i believe
at the actual compressor or in some bundle
Old 12-25-2009, 10:49 PM
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in the bundle right by the junction box. It's kind of a basterd to find in there. Just take a knife and cut the electric tape covering the wires and then pull out the wire with some tweezers
Old 12-29-2009, 09:45 PM
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is their only one green one? Did you use a T tap?
Old 02-16-2010, 05:01 PM
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did you figure this out? where does PIN 42 go?


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