Trailer Lighting Screwing Up

529 Views 1 Reply 2 Participants Last post by straycatstrat, Apr 9, 2018

jiminmokena

Discussion Starter · Apr 6, 2018

I have a 2000 xterra with a trailer hitch and a 4-point wiring harness. The trailer lighting was working fine, until "The Beast" took a hit to the right rear corner.
The trailer "pigtail," that runs from the factory trailer plug... located under the right rear corner... has been replaced, but the lights are still acting up. They dim when I apply the brakes and both turn signals flash when I turn on the left signal. Nothing happens when I turn on the right signal.
The right tail light housing was smashed/cracked, so I'm guessing the wiring harness to the trailer plug is damaged.
Here's my main problem... inside the body, forward of the right tail light, there's a light blue box/relay. When I check the part number, it comes back as a speake/audio relay. Does this box also function as a relay for the trailer light system?

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straycatstrat

· #2 · Apr 9, 2018

I'm no expert, but I think it would just be easier for you to go to your local parts store and pick up a new wiring harness for a trailer and just tap it all into the existing wiring for your rear lights.

I did that on mine because when I got mine, a couple wires were broken, and the plug itself had been drug on the ground for some time and was ground down to just about nothing. So, off with the rest of the wires up to the body, and just got a new plug and just spliced into the tail lights. Funny enough, a couple weeks later I was moving and the trailer I borrowed needed a 7-pin plug, so I had to get an adapter, but it works like a charm!

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