Unknown Plugs Behind Rear-Bumper?

[jimmyjames008]

I think I figured out what the plug is on the factory wiring harness.

 

It's made by TE Connectivity:

 

Plug - 2109441

Contact - 968857

Wire Seal - 828905

Empty hole plug- 828922

 

http://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F2109441%7FA2%7Fpdf%7FEnglish%7FENG_CD_2109441_A2.pdf%7F2-2109441-4

[Thomcat]

So, I decided to try something with this.

 

For those of you planning to add under rail bed lighting, your own design or GM's official design, or you have other plans (in my case, I want to connect my LED reverse lights to this, if it wont blow the fuse..)

 

I ordered PN 22878806. This is the harness that connects to plug X6 (the one in question in this thread.)

 

From teh intarwebz.. theres 2 pinouts in it in pin slots 4 and 7.

 

http://sandyblogs.com/techlink/?p=3659

 

The instructions past that point start sounding like a foreign language to me, but from what I understand one is power and one is ground. (From the writeup it sounds like pin 7 is power and they're using a local ground somewhere in their instructions.)

 

The harness in question has a list price of $41. I picked one up for $38 shipped from GMPD. I'll take a pic of it when it comes in.

 

My idea is to use the cargo light switch to run my reverse lights. I have a set of 18w "Cree" LED lights I bought off amazon for $23. They may not be great, but for $23.. I dont know if I care too much.

 

My biggest concern is that I'll blow a fuse from pulling too much power.

Really want to take a chance cross-wiring the reverse lamp circuit to the bed lamps? No doubt the reverse lamps will go on with the bed lamp switch, but what happens when you supply that voltage to an inactive reverse lamp circuit? Reverse lamps are no longer operated by a manual neutral safety switch on the column or console, but by the ECU and BCU through the network bus. Maybe nothing will happen, or maybe you'll blow the the output chip in the circuit......you need a complete schematic tracing both circuits to see if it is viable, not just the power pinouts.

 

Powered my forward facing and rearward facing LED flood lamps on the sports bar off the trailer hitch circuit, switched when I want by two remote control 12v relays under the bed rail also powered by the hitch circuit and battery remotes stored in the console. When off road and outside the truck I take the remotes and can light up the whole area with enough light to give the deer a sunburn.

[cruizin01]

good info.