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Eisboch

wrote in message
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On 15 Mar 2007 03:31:06 -0700, wrote:

Maybe one of you trailer boaters can help me out. I've got an
intermittent problem with my trailer lights - either one side or the
other will light (tail lights and side marker lights). This is
intermittent - sometimes both sides will light. I put a test light on
my truck's electrical input - that doesn't seem to be the problem Any
suggestions on where to start troubleshooting?
Thanks much.

Grounds can be a problem but don't ignore that cheap assed connector
most trailer lights hook to the car with.
Trailer lights always seem to be trouble if they are out in the
weather and dunked in the water.. I have mine on a 1x4 that I keep in
the garage and I bungie it across the back of the boat when I tow (or
just to the trailer if I am going "bareback"). The wiring is SJOW
cord, not that zip lead the trailers come with.

I agree ... mainly because I am not so sure the OP's problem is a ground.
Usually there is only one, common ground connection to the trailer. Since
he stated that either one side lights or the other ... sometimes both ...
it would seem to indicate that he has a ground connection.

Betcha his problem is in the connector plug.

Eisboch