C-RichSS Posted May 4, 2014 Report Share Posted May 4, 2014 I know this is a stupid question but what is that plug on the left side of the picture behind my trailer plug in? Is it for a trailer brake system or what? Quote Link to comment Share on other sites More sharing options...
Blown 346 Posted May 5, 2014 Report Share Posted May 5, 2014 Your trailer brake plug in is in the cab in front of where your left foot sits. Quote Link to comment Share on other sites More sharing options...
C-RichSS Posted May 5, 2014 Author Report Share Posted May 5, 2014 So that's what that wire is for then is trailer brakes? Quote Link to comment Share on other sites More sharing options...
chawkins6789 Posted May 5, 2014 Report Share Posted May 5, 2014 The wire you show is not for trailer brakes. The trailer brake wire is in the 7 pin harness for the trailer package. Your controller plus into the cab. I looked under my truck and that wire you show isn't present Quote Link to comment Share on other sites More sharing options...
C-RichSS Posted May 5, 2014 Author Report Share Posted May 5, 2014 See that's what I thought and thats why I'm confused by it.. that same plug was on my last truck and it was an '00 z71 step side Quote Link to comment Share on other sites More sharing options...
chawkins6789 Posted May 5, 2014 Report Share Posted May 5, 2014 Let me look deeper Quote Link to comment Share on other sites More sharing options...
C-RichSS Posted May 5, 2014 Author Report Share Posted May 5, 2014 It must be an after market accessory wire for something installed by the last owner same with my old truck. I've searched and Havent come up with anything Quote Link to comment Share on other sites More sharing options...
chawkins6789 Posted May 5, 2014 Report Share Posted May 5, 2014 I crawled under mine. I dont have the stick hitch or 7 pin but all the wiring before the 7 pin is stock and I dont have it. I havent seen that before. Quote Link to comment Share on other sites More sharing options...
chawkins6789 Posted May 5, 2014 Report Share Posted May 5, 2014 If I were you I would test it for power under different lighting conditions: tail/brake/signal/reverse and key off and maybe key on. Might help give you an idea Quote Link to comment Share on other sites More sharing options...
C-RichSS Posted May 5, 2014 Author Report Share Posted May 5, 2014 I'll Have to do that sometime. just thought it was odd it was on my last truck and now on my SS. Thanks for the help bud Quote Link to comment Share on other sites More sharing options...
Bigtoyz97 Posted May 5, 2014 Report Share Posted May 5, 2014 I had to fix some wiring problems with my plug there and seen that same very wire capped off. Quote Link to comment Share on other sites More sharing options...
chpspecial Posted May 7, 2014 Report Share Posted May 7, 2014 That's is the wire for the chmsl. (center high mount stop lamp). I.e. the third brake lamp. If you have a camper or bed cover this is where you connect the brake lamp to Sent from my HTC6500LVW using Tapatalk Quote Link to comment Share on other sites More sharing options...
C-RichSS Posted May 7, 2014 Author Report Share Posted May 7, 2014 Ah thank you sir. Sounds like I'm NEVER going to use it Haha Quote Link to comment Share on other sites More sharing options...
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