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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

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  #1  
Old 09-13-2007, 11:59 PM
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Default A/C on/off switch Wire?

Hello Everyone! Go a quick question. Just finished putting a few mods on my 05 H2 and was wondering where this A/c Wire is? I put dual Fan set up on but Parma-cool didn?t get specific on where the a/c on/off switch wire was. Fans come on ok when temp is right but not when a/c is engaged? Any clues? I also put on airrad duct with volant cool air box and Jet MAF. Oh yea and Magnaflow Dual split exhaust!! Sounds sweet but a little close to Air bags on passenger side!!

Any help would be appreciated!
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Old 09-14-2007, 12:45 AM
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Default Re: A/C on/off switch Wire?

Come on Anyone?? No one knows where to tap into a/c on off switch??

i cant believe this!!
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Old 09-14-2007, 01:10 AM
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Default Re: A/C on/off switch Wire?

At the compressor
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Old 09-14-2007, 01:33 AM
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Default Re: A/C on/off switch Wire?

kind of knew that but was looking for a closer position than running the wires down there. How about the a/c dryer? there is a blue and black wire on it.?? any luck there? wish i had an amp meter o r light tester. damm i cheap!
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Old 09-14-2007, 01:47 AM
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Default Re: A/C on/off switch Wire?

always use a meter! light testers are no good and can damage electronics in the newer autos. Dont know about the dryer. I assume your looking for +12v when the AC is on. I've always seen them hook to the compressor wire.
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Old 09-14-2007, 06:28 PM
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Default Re: A/C on/off switch Wire?

Which wire? the black or the green?
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Old 09-15-2007, 01:11 AM
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Default Re: A/C on/off switch Wire?

FIGURE Compressor Control(c)


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Old 09-15-2007, 10:31 AM
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Default Re: A/C on/off switch Wire?

Thx a bunch!!!

works great but i still have temp spikes with A/C on..alittle moding is needed to get the suction of the stock rad. shroud!!

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