Hi
@Misterbee ,
Your problem is different from what is being discussed above.
You have additional problems.
The easiest start to testing is a Curt 7 pin trailer tester or a similar device.
7-Way RV Blade Connector Tester
You will be able to see what works and what does not work.
Plug it in and turn on the hazard lights and see if the lights in the tester light. You may need a helper for some of the tests.
It is likely from your description that there is a bad or missing ground connection to the trailer if no lights function.
The “good news” in your case is the red lighted trailer icon in your car. This means that the car at least recognizes that there is a trailer present and connected to the car.
Does your trailer use LEDs or incandescent lights? Some systems have trouble identifying a trailer with LEDs because they don’t see the resistance they are expecting.
Mobile service may be able to help but your best start would be getting the tester mentioned above to see what may work.
The testers are available at Amazon for less than $20.
Please keep us updated on your progress.
Good luck,
Shawn