Help identifying a couple of wires

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Squared74

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Tim
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74 GMC Sierra Grande - 350 w Factory AC

I have 3 wires that I’m trying to identify. All 3 come off the main harness. 2 of the wires are in a small deteriorated loom. One of these two is green (#1 in pic). This wire I believe should go to the temp sending unit. The other wire (#2)of this couple is tan or orange? It has a melted plastic connector on the end. The third wire is also tan or orange and is much shorter with a metal screw tab on it’s end. Thanks in advance for the help!
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Snoots

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You're going to have to do some troubleshooting.
One is likely the Temp Sensor.
The other 2 are likely for the A/C compressor.
Go and get yourself a DMM to make it easy.
 

Squared74

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Yeah, the #1 is definitely the temp sensor. While those wires were on the drivers side, the ac compressor is already wired up.
 

Jgonick

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blk/yel windshield washer maybe
 

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