Posted by Steve in VA on September 04, 2016 at 12:53:12 from (72.73.39.252):
I hope someone can educate me on this one. I frequently borrow a buddy's 16' BP w/o brakes. So I hooked up today and about 1/2 of the lights didn't work. I figure I'll fix this for him before it comes back. Not being all that confident of trailer wiring, I start by verifying the wiring on both plugs on my Dodge. The plugs and controller were installed by a reputable dealer and I have no issues whatsoever when connected to my dump w/ brakes.
Here's the thing. When I check the male connectors on the Dodge, the right turn signal appears to have reversed polarity. By that I mean that the VOM needle moves into the negative range when that lamp flashes. The left signal, running lamps, and 12v constant reflect positive scale movement. I haven't checked the brakes yet.
How is this possible? Is there a controller issues?
Thanks in advance guys. I know I'll learn something on this one.
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