Only Running Lights Working after Installing Curt T-Connector Wiring Harness on 2011 Nissan Xterra

Question:

I have just received and installed the entire harness, including the relays, in my 2011 Xterra, and only am able to have the running lights work, not the brakes or turn signals, and thats using a light up tester. What could be the issue?

asked by: Nick S

Expert Reply:

It sounds like everything was installed correctly with the wiring harness # C56225 on your 2011 Nissan Xterra. I recommend first checking to make sure there is no dirt or corrosion on or inside the factory gray connector under your vehicle. Look for anything that might be preventing a clean connection with the wiring harness plug and simply clean it out. A weak connection can certainly lead to the running lights working on your Nissan but nothing else.

Also make sure that the harness is grounded to a clean metal surface. Check to ensure that there is no paint, undercoating or debris on the bare metal surface.

If you are still unable to find the cause of your issue, please let me know and I will be happy to look into this further. I have also attached an installation video for this harness on your 2011 Nissan Xterra that you can use for reference.

expert reply by: Chris R