Troubleshooting Turn Signals Not Working Using T-One Wiring Harness on 2016 VW Touareg

Question:

Hi, I bought the T-ONE connector for my Touareg 2016, and the turn signals are nor working, do you know what can I do?

asked by: Alejandro G

Helpful Expert Reply:

The Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118668 you referenced is a confirmed fit for your 2016 VW Touareg. Since you mentioned your turn signals are not working, I recommend you double check the installation and ensure you have a good 12V power connection to your battery and clean metal to metal ground to your vehicle frame or metal body support. I recommend using the circuit tester # PTW2993 to check each function. I've attached a video and an article to assist.

If the functions are working correctly with the tester, then we can troubleshoot your trailer connection and wiring on the trailer itself. You can use a simple battery to connect the ground wire of your trailer to the negative terminal and then use the positive terminal to test each light function.

expert reply by: Jason S