Civilian trailer lights

[dilligaf13]

I'm looking to run lights, to a civilian trailer I want to tow with my M932 tractor. I took the wiring harness, from a M105 I used on a bobber project, so I can plug into the M932's rear trailer plug. The problem I'm running into is that of the 8 wires, in the M105 harness, I can not locate the wire that activates the brake lights. I've located right turn, left turn, running lights and a wire with a constant 28V. The remaining 4 wires seem to have no purpose, as they get no voltage. Any ideas?

 

[Swamp Donkey]

The brake light switch is activated by air. If there is no air in the system, or not enough to activate the switch, you probably won't find it by pressing the pedal. If that doesn't work, there is a pin out diagram in one of the TMs and the P2P program.

 

[dilligaf13]

Thought I remembered needing air in the system so I checked it while running and still had no luck. I don't have admin privileges on my computer so I can't get the P2P program to download or open. I'll double check the TMs and check to see if I'm getting power at the trailer connection pin.

 

[dilligaf13]

Found the schematic for the trailer lights. Looks like 22-460 and 22-461 run both the turn signals and their respective brake light, instead of a single wire running both brake lights. Standard military redundancy....

 

[Ford Mechanic]

On civilian trailers turn and stop operate on the same circuit

 

[Ford Mechanic]

This thread should help you also http://www.steelsoldiers.com/showthread.php?t=31824

 

[Goobs]

I am in need to do a similar thing - I want to tow my civilian car trailer with my MV

Someone needs to make and sell them. It would be a popular item.

Goobs

 

[dilligaf13]

Reach out to "Those Military Guys". They design and sell stuff for the FMTV market.

 

[Goobs]

I have talked with TMG many times. Ill have to give them a call again.

Goobs

 

[jasonjc]

I think Erik's has one.

 

[73m819]

The military tail lights (not blackout ) are just the old 4 wire setup, ground, running lights, left turn/brake, right turn/brake. the turn signal bulb IS also the brake light bulb.

 

[tobyS]

How about going to 24 volt bulbs the same size or diodes?

I have a bunch of 24 volt dc ice cube relays (you would need 3, I think) to isolate the 12 volt (the 12dc then comes from a (fused) line from one of your batteries). They could be put in the battery box and a you use the spare terminals for the 2 new brake 12 volt + and the (1) -. Oh yea, running lights need a fourth terminal and 3 relays.

Caution... make sure that ground/-/negative/neutral is the same as the truck. It is possible to get the other end connected and make a short.

Or I believe there is a way to do it with a resistor in series.

 

[shadowdd]

I bought a ruggedized converter from xm381.com and he is very helpful if you have any questions. The quality was top notch.

Bryan

 

[dilligaf13]

I saw that system. Looked well built and rugged but was a little too rich for my blood.

 

[Csm Davis]

http://www.xm381.com/xm381/Civi_Trailer_Lights.html

 

[turbinesurgun]

CSM Davis, will you give me a call or text please 6019166827. Tried to send you a pm but said your box was full

 

[RodUSMC1962]

I had my buddie run civi line with female end to plug my civi trailer in, works great and I still have my military hook up for the 105. Only had to buy the female plug.

 

[rhurey]

I saw that system. Looked well built and rugged but was a little too rich for my blood.

They used to offer a frame rail mount that was cheaper. Might be worth inquiring.

 

[silverstate55]

I bought a ruggedized converter from xm381.com and he is very helpful if you have any questions. The quality was top notch.

Bryan

I did too, got the one with ABS. It works FLAWLESSLY, worth every penny.

Not to mention that the proprietor is a member here as well, good to support members' ventures when they put out quality products that work beyond expectations. I've towed various semi-trailers as well as pull-behind equipment trailers with great success, I'd buy another without hesitation if the need arose.