Disconnect the trailer. Replace the fuse. Do the truck’s tractor lights work normally? (Test your brake pedal and turn signals using the cab lights). If the tractor lights work fine and the fuse holds without the trailer, the problem is 100% in your trailer’s wiring harness (bad ground, rodent damage, or a shorted LED light).
: Accessed by removing the glove box. This module handles many interior and cabin-related electrical systems, including some auxiliary trailer power. 2019 freightliner cascadia trailer light fuse location
On a 2019 Freightliner Cascadia, the trailer light fuse is located in the following places: Disconnect the trailer
The trailer light fuse on a 2019 Freightliner Cascadia is typically located in the fuse box, which can be found in the engine compartment. Specifically, you should check: you should check: