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Anyone know what this harness is supposed to connect to?

1K views 17 replies 6 participants last post by  Recklessabandon 
#1 · (Edited)
Everything seems to be running normal. No lights or codes being thrown. But there is this harness not attached to anything by the blower fan. Any ideas what it’s for, or needs to be connected to? It’s a 2001 4.3, auto transmission with 4wd
 
#4 ·
It's a 4 door SUV based on the fact it has the auto climate HVAC.

Does your HVAC fan work?

It's been awhile since I messed with an auto climate truck, but I want to say it has to do with the blower motor or the black module in the bottom right of your picture.

If that's not it, take a clear picture of the blower motor area, but with more of the engine compartment showing.
 
#7 ·
This is the auto trac vacuum switch. It sits way to far, in the center of the firewall by the wiper motor. I've looked on all my blazers with all options from different HVAC systems, transfer cases, federal and California emissions, etc. Non of them have that connector. I have no idea...
Automotive tire Pipeline transport Wood Gas Plumbing
 
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