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I peeled back the insulation and found colors on the wiring harness. But here's the big facts, evidently the harness wiring goes to the right side of trailer then to the left side for service lights. when I ran a wire from RH service connector to the LH service connector, all was good (so I...

Well went to check all the lights again last night. LH/RH turn - check. LH/RH Brake lights - check. Service/running lights - no go. I'm going to pull back the trailer harness and check that wiring connection (that's where the ground screw was loose), then check with multi meter the...

Update...good advice btw, I hooked 21 to brown and tested ok at truck receptacle. I pulled back trailer harness to test trailer side of it while plugged in to truck, nothing. Then noticed the ground wire was loose, tightened it up. Then I peeled back insulation at taillights and saw the...

Upon closer inspection yesterday, the lights on the trailer are marked white/grnd, green, yellow, blue and brown. I assume this is the same as the 7 blade harness colors: Yellow / LH turn & stop, etc. 7The 7 blade receptacle is all hooked up on the truck now ( I only used Yellow and Green...

I actuallty had my PCB go bad, incredibly enough hitting it with a hammer works, well for a little while.

Its a military tilt trailer. Lights ar e the typ military lights, 5 plugs but only one is still plugged in. No markings at all that I can see, just 4 female packard connectors and 4 male packard connectors. The previous owner installed a 7 blade harness so he could tow with his civvie...

And the saga continues... So come to find out the guys who powder coated the trailer unplugged all of the trailer light connectors (4 for each light). They appear to not have any markings on them or any other identifying characteristics. Any suggestions on best way to figure how to connect...

Yeh this is kind of what I was thinking as well. What about the Blue wire? I'm finding two different entries for it - fog lights or brake controller? Thanks for the feedback by the way

what I found for wiring the 7 pin harness: Yellow to M LH indicator - M is blank on the 12 pin truck side? Blue to F - good to go White to ground - frame of truck - good to go Green to N RH indicator - N is blank on the 12 pin truck side? Brown to E - good to go Red to B & J LH stop and RH stop...

Update: So I got the Female Y connectors (and of course I didn't remember to order the male Y connectors, they should be here Tuesday) But I thought I would go ahead and snip and mark the wires so then all I had to do is connect the Y connectors. My 24 pin plug doesn't have the notch to help...

Outstanding! Thank you all, I have have had such good input from everybody on here. I'm going to order these right now. Is it a crimp type of connector I guess?

I am not entirely sure what these "Y's" are. I've been scrounging all over the internet and these pages - lots of good information but almost too much info. Seems to be a simple task (I wish this was the first time I ever said that and regretted it) to just cut the wiring harness before the...

The trailer does have LED bulbs and the person I bought it from used some adapter to hook it to their Deuce and half. Unfortunately on my 5 ton I only have the 12 pin. I think Im going to attempt to splice into the wiring harness on the truck that way I can haul basically any trailer (with LED...

I've searched the site here a bit and can't seem to find exactly what I'm looking for... I recently purchased a military trailer that already has a 7 blade receptacle on it. I know they make trailer cable to convert between the NATO 12 pin and Civilian 7 blade but they are hundreds of dollars...

Not trying to be cheap but would something like this work...

I've been reading some that you have can use a 12V trickle charger/maintainer but you have to have one for each battery - which honestly seems a little strange to me since both 12v batteries are connect to each other (hence 24V) but like i mentioned earlier I really dont know for 100%

How would one know which battery to hook it to?

Also, would you mount it where it would be permanently out, what about when vehicle is running would it need to be disconnected? Sorry to ask so many questions - this is a new thing for me. thanks

Awesome thanks, other than keeping it all OG military is there any reason to use the military version vs the civilian version. I've already replaced the OG alternator with a civilian 24V 70 AC Delco alternator with a modified bracket to mount it because the milspec alternators are basically garbage.

Awesome thanks, other than keeping it all OG military is there any reason to use the military version vs the civilian version. I've already replaced the OG alternator with a civilian 24V 70 AC Delco alternator with a modified bracket to mount it because the milspec alternators are basically...