Are you sure they're military lights and not civilian? All the military vehicle wiring I've seen is all black and the wires are identified with numbered tags, not colors.Upon closer inspection yesterday, the lights on the trailer are marked white/grnd, green, yellow, blue and brown.
If you posted some pictures of what you have, we could see what we're dealing with...
If they're civilian lights, most likely yes.I assume this is the same as the 7 blade harness colors: Yellow / LH turn & stop, etc.
If they're military lights, then no.
Good job! Once you get the Brown wire hooked to 21, you'll be good to go with your 7 blade plug.The 7 blade receptacle is all hooked up on the truck now ( I only used Yellow and Green wires, and ground the white to the vehicle). When I use a multimeter to test the receptacle at the truck, i get a reading when left turn signal is on from 9 oclock blade and 7 oclock blade, which is what it should be.
No.I know you guys are the experts but I still am wondering if I need any of the other wires from the 7 blade harness connected to complete this.
The other three wires are for Reverse Lights, Electric Brakes, and 12v Power. A 5 ton doesn't have those functions, so there's nothing to hook them to.
All you need is four. Ground, Left Turn/Brake, Right Turn/Brake, and Marker Lights.
When I use same multimeter to test the wiring at the trailer i just cant get a reading to establish which wires are which. On the right side I did a reading from to wires that indicated ground and green, but when I plugged in the tail light to it, it still didnt work.
Keep in mind that the previous owner of the trailer cut off the original trailer harness...Thanks again for your help guys, I about to light a match to this whole trailer thing, feel like i'm losing it.
And swapped possibly non-standard LED lights...
And the powder coating place apparently unhooked wires during the coating process...
And...?? Who knows what else..
So you just need to step back and fix one issue at a time. Start at the truck and work your way through the trailer.
Once you have the Brown hooked to 21 and checked with a meter, you'll have the truck wiring finished and can start troubleshooting the trailer.
Post several good pictures of the trailer lights and wires so we can see what you actually have.