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We have demonstrated all of these fixes checking the ground on the trailer. The trailer itself
is actually used as a ground obviously. Now there is some cases where you boat trailer
guys and some small utility trailers out there, the ground is actually carried in a separate
wire that lowers the trailer frame completely. The same tricks apply to check and make sure
your light is working. Again the connection to the light could be bad or it could be actually
a smashed wire underneath the frame of the trailer or also up front where you have got
a little bit of road rash dragging the ground. We will go ahead and show you next an example
of that type of wiring on a different trailer. 01:04
All right this example here will show you that first off one way to check it to make
sure is look at the 4-pole at the end of the trailer at the tongue, follow it down. If
it does not stop anywhere where you have an opening or any parts to the frame or anything
like that then chances are the ground is wearing inside the wiring harness. And on this example
here we can start by looking at the tail
light
and we have got the wire harness. 01:27