3 thoughts on “Trailer Wiring Harness Installation – 2012 Nissan Frontier – etrailer.com

  • October 10, 2013 at 1:49 am
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    What is the purpose of the Relays? Are they necessary to get trailer lighting?

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  • March 24, 2016 at 12:39 pm
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    Matt Awe – Unless you have the NIssan tow package, then yes you'll need them. Without the relays you'll only have brakes, turn signals, and flashers…. no running lights.

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  • March 24, 2016 at 1:08 pm
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    Hooked mine up, the running lights work, but not the turn signals or brakes. I've checked all my connections. I plugged into the only AVAILABLE 12 pin connector under the kick panel. Any ideas?

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