Troubleshooting Nissan Titan Turn Signal Function on Trailer Wiring Harness

Updated 10/10/2017 | Published 10/08/2017

Question:

Put a new harness in but the blinker is not working. All other lights are. Any suggestions Blinker Nissan Titian

asked by: Tess

Expert Reply:

If neither turn signal is working on your harness then there are two possibilities. One is you have a faulty ground wire connection and need to create one that is bare metal to metal with no debris or corrosion. The other possibility is a lack of power. To test this, use a circuit tester like # PTW2993 to probe the wire going into that function before the box if your harness has one and after the box to make sure power is going into the module and coming from it as well for that function. If it is not a powered unit, requiring power from the battery directly, then you may have the wrong harness.

If you let me know the year of your Nissan Titan, I'd be happy to help further. I've attached an article to help further. If you test the functions at your 4 way and everything works, then you will need to check your trailer wiring for the issue.

expert reply by: Jason S