This is the primary cause of trailer-light problems. Symptoms include flickering, fast-blinking, dimness, intermittent operation (often when a trailer ball is used for a ground), and complete failure.
Over 450,000 Chrysler, Ram, and Jeep Vehicles Recalled Over Trailer Brake Issues ...
HAMILTON, ONTARIO / ACCESS Newswire / January 21, 2026 / Linde Truck & Trailer, a trusted provider of heavy-truck ...