It's ALWAYS trailer wiring

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.

Replies:

• Re: It's ALWAYS trailer wiring da.bees 19:56:53 09/04/16 (0)
• Re: It's ALWAYS trailer wiring DoubleR 18:39:46 09/04/16 (0)
• Re: It's ALWAYS trailer wiring mjbrown 17:58:27 09/04/16 (0)
• Re: It's ALWAYS trailer wiring Oregon Tractor Jack 16:54:18 09/04/16 (1)
  • Re: It's ALWAYS trailer wiring Leroy 19:21:15 09/04/16 (0)
• Re: It's ALWAYS trailer wiring Steve@Advance 15:59:36 09/04/16 (0)
• Re: It's ALWAYS trailer wiring Bob Harvey 15:50:51 09/04/16 (0)
• Re: It's ALWAYS trailer wiring MT RON 15:40:13 09/04/16 (1)
  • Re: It's ALWAYS trailer wiring t in ne 03:40:14 09/05/16 (0)
• Re: It's ALWAYS trailer wiring John T 14:21:28 09/04/16 (5)
  • Re: It's ALWAYS trailer wiring Richard G. 17:55:04 09/04/16 (2)
    • Re: It's ALWAYS trailer wiring John T 04:13:42 09/05/16 (1)
      • Re: It's ALWAYS trailer wiring Richard G. 05:13:22 09/05/16 (0)
  • Re: It's ALWAYS trailer wiring Steve in VA 14:43:04 09/04/16 (1)
    • Re: It's ALWAYS trailer wiring John T 16:12:15 09/04/16 (0)
• Re: It's ALWAYS trailer wiring Steve in VA 14:18:37 09/04/16 (0)
• Re: It's ALWAYS trailer wiring JoeM(GA) 14:14:43 09/04/16 (0)
• Re: It's ALWAYS trailer wiring Donald Lehman 13:38:23 09/04/16 (1)
  • Re: It's ALWAYS trailer wiring gtractorfan 14:47:36 09/04/16 (0)
• Re: It's ALWAYS trailer wiring notjustair 13:28:48 09/04/16 (1)
  • Re: It's ALWAYS trailer wiring Kansas4010 17:06:06 09/04/16 (0)
• Re: It's ALWAYS trailer wiring BushogPapa 13:16:30 09/04/16 (0)
• Re: It's ALWAYS trailer wiring old 13:08:03 09/04/16 (0)

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