ISO wiring diagrams for electric brake and hitch plug at rear bumper

[LjAvtech]

May be adding a travel trailer to my 2013 BDE 4X4. I need wiring diagrams as I have a few lights inop via the trailer plug at bumper. Also would like prints for the electric brake system. Any ideas where to get? I subscribed to Hayes Manual but unfortunately it’s pretty light on wiring diagrams. The towing package was installed factory but just can’t find the wiring diagrams and my local dealership won’t give them up.
TIA

 

[MS03 2500]

There is not really one diagram that will show you everything
But if this is your first time using the trailer plug try reading this thread

Install OEM trailer break on 2013 Avalanche

I have a 2013 Avalanche black diamond edition. I just got into a camper and the dealer there wants to install some universal trailer brake kit. I don't want them to drill any holes on my knee bolster, so I was looking around and noticed that some of the Avalanche LTZ models come with trailer...

www.chevyavalanchefanclub.com

If you need a diagram of the fuses it's in your owner's manual HTH

 

[2004Slickside]

May be adding a travel trailer to my 2013 BDE 4X4. I need wiring diagrams as I have a few lights inop via the trailer plug at bumper. Also would like prints for the electric brake system. Any ideas where to get? I subscribed to Hayes Manual but unfortunately it’s pretty light on wiring diagrams. The towing package was installed factory but just can’t find the wiring diagrams and my local dealership won’t give them up.
TIA

AlldataDIY subscription will have all the factory wiring diagrams for a 2013. I have them through 2009, but nothing newer.

 

[EXT4ME]

Would the ACDelco TDS (Technical Delivery System) be of any help?

They have General Motors Service Repair Manuals from 1996 to present, among other things, for 3 Days for $22.00.

Careful planning and execution may get you what you seek.

Just a thought.