Power wire on passenger side under trim?

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Bono B-1

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2021 Yukon AT4.

This is behind the sill trim piece the goes up towards the dash on the front passenger side.

It looks like a power run but nothing is plugged into it? Anyone else have a dead end like this? Does yours plug in on the other side and run somewhere?
 

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Bono B-1

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Anyone willing to pop theirs off quick and see if you have something plugged into it?
 
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Bono B-1

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It is a fairly heavy gauge, looks like maybe 8 gauge. So I don’t think it would be for lighting.
 

Rocket Man

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There's unused connectors all over these vehicles so GM doesn't have to make a hundred different harnesses depending on options. If everything is working, I wouldn't worry about it. Otherwise all the other unused connectors are gonna drive you nuts every time you work on your vehicle.
 

StephenPT

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Here’s mine. ‘22 Yukon XL SLE Duramax. Given that yours is an AT4 (can’t be a Duramax) and mine is base level trim (minimal options), it leads me to believe it’s wiring for a function specific to the Duramax. The DEF tank is on the passenger side, so could it be the wiring for the DEF heater? That’s my guess…
 

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JerseySUP

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I wondering if you could use it for something like an amplifier? Would save some headaches since it is already beyond the firewall.
 
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