Towing trailer lights

Tiny
MOWCHANIC
  • MEMBER
  • 2005 NISSAN PATHFINDER
  • 4.0L
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 223,427 MILES
I have the vehicle listed above and it has the OEM plug harness for trailer lights. I plugged up my trailer I have no lights of any kind for the trailer. All fuses look good. Checked all of them and they are in good shape. Do I have to have another harness just to be able to pull a trailer and make lights work? My trailer has no electric brake it's just a small utility trailer.
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Tuesday, February 9th, 2021 AT 2:38 AM

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Tiny
DANNY L
  • EXPERT
Hello, I'm Danny.

Here is a wiring diagram of the factory wiring tow plug from your van. Do you you have the conversion from 7 to 4 pin adapter?

https://www.2carpros.com/articles/how-to-check-wiring

Here is a wiring test tutorial for you to view. See attached picture and wiring diagram below. I've circled the wiring plug towing harness in red. Hope this helps and thanks for using 2CarPros.
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Wednesday, February 10th, 2021 AT 12:48 AM

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