Supreme Corporation or Supreme Industries made this 16 foot dry van box to go on a two-ton chassis. I'm looking for a wiring diagram or schematic since there are several plugs under the box and numerous wires. All I want to do is get the running lights working and an inside overhead work light some juice.

Many thanks for any advice or a pointer to online information.

Tom

 

Welcome to FTE.

Sounds like a job for test light and multimeter and some wire checking. Not sure there is much to the wiring on a body like that, based on what they show on their site. You might contact them if need be:

Signature Van Body | Signature Body | Van Body | Supreme Corporation

 

Thanks for the reply. There are more than a dozen wires terminating at connectors at the rear bottom center of the box which just seemed like an excessive number to me, and a pain to sort through in order to find the few I want. The Corporation's website is singularly uninformative, so I'll try calling them and see whether they can send me something.

 

Yea, no "tech support" or anything on that site, other than the contact info.

Since they are rear and center, I wonder if they are there for a trailer connection.

Trailer connectors seem to be 7 contact:

7-contact Truck Trailer Connectors

-brakes
-L signal
-R signal
-running lights
-license plate light
-interior light
-ground
-on smaller trailers, electric brakes

OR, does it appear they are the wires going into the box?

---maybe---, I'm no vehicle electrician.

 

At least three automotive-type connectors, each with 4 to 6 wires and it was so dirty and dark under there I couldn't tell any colors. None of them appeared to be correctly terminated as if for a trailer.

My old truck hasn't got the original wiring at the back so I've never seen what it should look like.

Tom