No specific trailer wires for my Nissan Sentra 2021 (Aug 2021) at this time (Aug 2021) so I had to either who use universal connector - find in the wiring harness or something else. I found this product and the idea of not connecting to existing wiring seemed great; However, I just couldn't get it to work in my center. I identified the tail, turn signal, and stop wiring on the vehicle with a feeler gauge, attached the sensors, and went through the "learn" sequence. I tried different combinations of start with tail, then turn signals, then stop and change order; However, the result was that the converter always kept the taillights on constantly. The instructions that came with it had a different flow than the e-trailer video, neither of which worked on my car. It might be some kind of incompatibility issue with my machine; However, it seems like a lot of people are having the same problem. Just google Tekonsha ZCI troubleshooter and you will find many reviews with the same problem. Returned, ordered universal plug-in harness CURT (3 times cheaper than this one), works perfectly. If you're not worried about crashing into your vehicle's seat belt, skip this product and order a simpler (and cheaper) universal one.
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