Why are my tail lights not working?

Hello, Dave here, contributing to RepairPal and providing expert advice since 2010. Does this vehicle have a trailer wiring harness also? Sometimes I find that this can be troublesome and cause issues with the conventional tail lights of the vehicle. Also check the harness going back and wiggle it and see if it changes the voltage present at the desired socket. You might find a flex point at the harness creates an intermittent problem or excessive resistance in that particular circuit. You may also find a ground issue -- meaning lots of power present but with no ground, no operation occurs. Lastly, sometimes the switch creates a problem due to high power going through the block causing wire terminal issues. All these things said, I can only recommend further testing and can offer the assistance of a shop near you: https://repairpal.com/auto-repair-near-me Click the link or call us at 877-913-1554. We'll gladly find you a certified RepairPal shop in your area.