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Premium Member
'08 TrailblazerSS
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2,987 Posts
That sends power back to the trailer connector. Its unhooked from the factory.
 

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TT AWD TBSS Jeep
TT AWD SS Pwrd Jeep
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5,825 Posts
IIRC thats for if you have the towing package for the brake contoller or lights. Someone else will chime in, but looking at the corrosion, it hasnt been used, and wont be unless you add the GM or aftermarket towing setup.
 

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Premium Member
2008 TB SS AWD 3SS
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3,288 Posts
Its what Brandon said, it's used for providing a +12V feed to the 7pin trailer connector for use with a Travel Trailer or trailer that needs a constant power feed from the truck.
 

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TT AWD TBSS Jeep
TT AWD SS Pwrd Jeep
Joined
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5,825 Posts
We musta posted seconds apart Brandon, cause ur post wasnt there as I typed mine, or Id a skipped it. LOL
 
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