I can't figure out what this goes to. Harness was brought as a 2005 Tahoe harness with a p59 pcm. The red wire traces back to the fuse box on one of the 2 prong connectors and the black wire is a ground. I tried to do a continuity test to find the other wires on the pcm connector but no luck. Before I go to unwrapping the tape and stuff does anyone know what this Is?

 

Anyone?

 

Kind of looks like a tail light connector.... idk

 

Weird tho it's on the engine harness

 

What side of the harness is it on?

I don't remember a connector like that. It's for sure not a coil pack harness connector.

 

I laid out my 05 harness awhile ago, from my pic I couldn't match anything really other than by bulk head connector

 

Was the tahoe it came off of anything odd, like a hybrid?

 

It's on the passenger side by what looks like a ac pressure switch connector
Not that I know of. Guy on ls1tech said it was a dbw tahoe

 

Ok so i traced out the wires. The heavy gauge red goes to what i assume would be 12v power to the fuse box, heavy black is to ground, all the others go to c100 connector. I cant find a c100 pinout that matches the one on this harness.

 

Looks like i may have figured it out. Seems to be a plug to a blower motor resister or something to do with the blower motor